Merge pull request #1439 from bilawalsidhu/release/v0.3.0

chore(release): prepare v0.3.0

.env.example

@@ -83,6 +83,12 @@ OPENAI_REALTIME_TRANSCRIBE_MODEL=gpt-4o-mini-transcribe
 # keep them while debugging; delete the log when you are done.
 GEV_VOICE_LOG_CONTENT=
 OPENAI_HUD_SUMMARY_MODEL=gpt-5-nano
+# Optional: Gemini Live voice, selected in the GEV MIC provider chooser.
+# Server-only key. Do not prefix with VITE_. Provider Settings can save it.
+GEMINI_API_KEY=
+GEMINI_LIVE_MODEL=gemini-3.8-live
+# Token starts per IP per minute; 0 disables the throttle, not provider quotas.
+# GEV_RATELIMIT_GEMINI_PER_MIN=30
 # Per-IP rate limit for the OpenAI cost endpoints
 # (/api/realtime/token + /api/openai/hud-summary), in requests per minute.
 # DEFAULTS TO 30, the value the Pinokio build also ships. That clears ordinary
@@ -109,7 +115,8 @@ OPENAI_HUD_SUMMARY_MODEL=gpt-5-nano
 # Client Token). Client-exposed by design, like GOOGLE_MAPS_API_KEY.
 MAPILLARY_CLIENT_TOKEN=
 
-# Optional: OpenSky auth mode (oauth | basic | auto | anon)
+# Optional: OpenSky auth mode (oauth | auto | anon). OpenSky retired
+# username/password (basic) sign-in on 2026-03-18; "basic" now loads anonymously.
 # Default: oauth — requires client credentials below
 # Set to "anon" to skip aircraft auth (rate-limited but works)
 OPENSKY_AUTH_MODE=oauth
@@ -118,11 +125,13 @@ OPENSKY_AUTH_MODE=oauth
 OPENSKY_CLIENT_ID=
 OPENSKY_CLIENT_SECRET=
 
-# Optional: higher Launch Library 2 request allowance. Public access works
-# without a token.
+# Launch Library 2: leave blank for standard public access (no key needed).
+# Optional paid Patreon tokens raise request limits; there is no free API key.
 LL2_API_TOKEN=
 
-# Optional: OpenSky credentials JSON file path (alternative to above)
+# Optional: OpenSky credentials JSON file path, used when the two values above
+# are empty: the credentials.json your OpenSky account page downloads when you
+# create an API client. Use an absolute path for compatibility with launchers.
 # OPENSKY_CREDENTIALS_FILE=/path/to/credentials.json
 
 # Optional: dev server config
@@ -201,6 +210,7 @@ AISSTREAM_API_KEY=
 # CCTV_TFL_ENABLED=1                                   # set 0 to disable Transport for London JamCams
 # CCTV_TFL_MAX_SOURCES=250                             # cap cameras loaded from TfL
 # CCTV_ONTARIO_ENABLED=1                               # set 0 to disable Ontario 511 cameras
+# ONTARIO_511_API_KEY=                                 # free developer key: sign up at 511on.ca/my511/register, then request it at 511on.ca/developers/doc
 # CCTV_ONTARIO_MAX_SOURCES=1000                        # cap cameras loaded from Ontario 511
 # CCTV_FINTRAFFIC_ENABLED=1                            # set 0 to drop the Fintraffic (Finland) pack
 # CCTV_FINTRAFFIC_MAX_SOURCES=300                      # cap cameras loaded from the Fintraffic catalog
@@ -221,6 +231,9 @@ AISSTREAM_API_KEY=
 # CCTV_CALGARY_ROWS_URL=                               # override the Open Calgary catalog URL
 # CCTV_CATALONIA_ENABLED=1                             # set 0 to disable the Servei Català de Trànsit cameras
 # CCTV_CATALONIA_MAX_SOURCES=150                       # cap cameras loaded from Catalonia (~130 exist today)
+# CCTV_HK_ENABLED=1                                   # set 0 to disable the Hong Kong Transport Department cameras
+# CCTV_HK_MAX_SOURCES=1100                            # cap cameras loaded from Hong Kong (~1,013 exist today); min 8, max 1200
+# CCTV_HK_CAMERAS_URL=                                # override the DATA.GOV.HK camera locations XML URL
 # CCTV_KINGCOUNTY_ENABLED=1                            # set 0 to disable the King County (Washington) road cameras
 # CCTV_KINGCOUNTY_MAX_SOURCES=125                      # cap cameras loaded from the King County catalog
 # CCTV_WSDOT_ENABLED=1                                 # set 0 to disable the WSDOT (Washington State) highway cameras
@@ -228,6 +241,7 @@ AISSTREAM_API_KEY=
 # CCTV_VEGVESEN_ENABLED=1                              # set 0 to disable the Statens vegvesen (Norway) road cameras
 # CCTV_VEGVESEN_MAX_SOURCES=900                        # cap cameras loaded from Statens vegvesen (default loads all ~850 live; max 1000)
 # CCTV_VEGVESEN_VIDEO=1                                # set 0 to show stills instead of live HLS for Statens vegvesen video cameras
+# CCTV_VEGVESEN_HEIGHTS=1                              # set 0 to skip Kartverket ground heights for Statens vegvesen cameras (flat prior instead)
 # CCTV_VEGVESEN_URL=                                   # override the Statens vegvesen catalog URL
 # CCTV_NYC_ENABLED=                                    # off by default; set 1 only if you hold a NYC DOT data-sharing agreement ([email protected]) for the camera feed
 # CCTV_NYC_MAX_SOURCES=250                             # cap cameras loaded from the NYC TMC catalog (nearest borough cores first)
@@ -237,6 +251,11 @@ AISSTREAM_API_KEY=
 # CCTV_TORONTO_LIST_URL=                               # override the Toronto RESCU camera list URL
 # CCTV_LITHUANIA_ENABLED=                              # off by default; set 1 to load Via Lietuva / Eismoinfo road cameras (photo licence unconfirmed; see DATA_SOURCES.md)
 # CCTV_LITHUANIA_MAX_SOURCES=400                       # cap Lithuanian cameras; no API key required
+# CCTV_FLORIDA_ENABLED=                                # off by default; set 1 to load FL511 (Florida) cameras (individual, personal use only; any other use, including a public deployment, needs FDOT's express written consent; see DATA_SOURCES.md)
+# CCTV_FLORIDA_MAX_SOURCES=500                         # cap cameras loaded from the FL511 catalog (nearest regional anchors first)
+# CCTV_TAIWAN_ENABLED=1                                # set 0 to skip Taiwan Freeway Bureau (MOTC) road cameras
+# CCTV_TAIWAN_MAX_SOURCES=600                          # cap Taiwan freeway cameras (1-2000); no API key required
+# CCTV_TAIWAN_URL=                                     # override the Freeway Bureau MOTC 2.0 CCTV.xml URL
 # CCTV_MAX_SOURCES=4000                                # catalog-wide ceiling, shared round-robin across packs
 # CCTV_PREFER_AUSTIN=1                                 # prioritize Austin cameras in the registry
 # CCTV_FORCE_AUSTIN=                                   # force live default sources when a source-pack JSON is configured

.github/pull_request_template.md

@@ -0,0 +1,59 @@
+## What this changes
+
+<!-- One or two sentences: what changed and why. Link the issue if there is one. -->
+
+## How I verified it
+
+- [ ] `npm run build`
+- [ ] `npm test`
+- [ ] `npm run test:track` (dev server running)
+- [ ] Feature gate for the area I touched: <!-- e.g. `node scripts/qa-radio.mjs`, or "none applies" -->
+
+<!-- Screenshots are welcome for anything visual. -->
+
+## New layer checklist
+
+<!--
+Fill this in if the PR adds a new data layer. Delete the whole section if it doesn't.
+See "Adding a new layer" in CONTRIBUTING.md.
+-->
+
+**Screenshots**
+
+<!-- At least one screenshot of the layer on the globe, plus its info card or panel if it has one. -->
+
+**Recording**
+
+<!--
+Preferably 15 to 30 seconds: turn the layer on, move around, open a record.
+Drag an .mp4 or .mov in here; GitHub accepts up to 10 MB on free accounts.
+If it's bigger, link to it instead.
+-->
+
+**Proposed category**
+
+<!--
+Which layer-panel group should it sit in? The current groups are in PANEL_GROUPS
+in src/ui/layerPanel.js: Movement, Cameras, Infrastructure, Events, Weather, Utilities.
+If none fits, propose a new group and say why.
+-->
+
+Category:
+
+**Data source and licence**
+
+- Source (provider and endpoint):
+- Licence or terms (link):
+- Attribution shown in the app:
+- Needs a key? (none / optional / required):
+- Fetched at runtime, or bundled in the repo:
+
+<!-- Bundled data must be data we have the right to redistribute. -->
+
+- [ ] Added a row to `DATA_SOURCES.md`
+- [ ] Credit is registered in `src/data/dataCredits.js`
+- [ ] Share-link token assigned with `npm run layer-token:next`, if the layer is shareable
+
+## Docs
+
+- [ ] `docs/CURRENT-STATE.md` updated and a `changelog.d/<pr-number>-<slug>.md` fragment added, or this PR doesn't change runtime behaviour

.github/workflows/ci.yml

@@ -67,8 +67,6 @@ jobs:
     timeout-minutes: 30
     env:
       GEV_REQUIRE_ALLOCATION_GATE: '0'
-      # Fail on a missed header press unless the panel itself moved.
-      QA_FAIL_ON_RETRY: '1'
     steps:
       - name: Check out source
         uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
@@ -104,10 +102,6 @@ jobs:
       - name: Street Level gate with Mapillary fixtures
         run: npm run qa:street-level:fixtures -- --strict --url http://localhost:4173
 
-      - name: Portable panel gate
-        if: success() || failure()
-        run: npm run qa:panel-resize -- --url http://localhost:4173
-
       - name: Preview server log
         if: failure()
         run: cat preview.log

.gitignore

@@ -16,6 +16,10 @@ output/
 .gev-cache/
 # Browser QA gate evidence (screenshots, console and network dumps).
 qa-artifacts/
+# Playwright MCP session logs: browser consoles can carry tokens in URLs.
+.playwright-mcp/
+# Local Claude Code settings and preview configs.
+.claude/
 .DS_Store
 .gstack/
 3d-models/

CHANGELOG.md

@@ -1,11 +1,707 @@
 # Changelog
 
+## [Unreleased]
+
+## [0.3.0] — 2026-10-27 — Street Level, On Your Phone, in Your Language
+
+- Show a Street Level view facing 359.5° or more as 0°. The viewer caption
+  rounded the bearing without wrapping, so a view facing 359.6° read "360°"
+  (Aditya, @Rohilalala, #1431).
+
+- The visual styles and their presets mark their labels with the catalog-free
+  `msg()`, so the share-link codec, and any server that loads it, no longer
+  bundles every translation catalog (about 0.9 MB) (samehkhamis, #1421).
+
+- Keep a location search that found nothing, or failed, in the field so it can
+  be corrected: the query stays, focused and selected, and a persistent
+  announced message under the search row says what to do next, instead of a
+  toast followed by a cleared and closed field (samehkhamis, #1420).
+
+- Hosts can read share links on their server: the share-link codec and the
+  `/share/<code>` address helpers are now package exports,
+  `@gods-eye-view/core/share/view-codec` and `@gods-eye-view/core/share/link-path`
+  (samehkhamis, #1419).
+
+- Share links are now short: the share button makes `/share/<code>` links
+  that open on any copy of the app, follow the aircraft, military aircraft or
+  satellite you were following, and fall back to its last-known position with
+  a notice if it isn't reporting. A mistyped link is refused instead of
+  opening a different view. Long `#v=2` links keep working (samehkhamis, #1418).
+
+- Make Clear All clear the saved and shared layer selection. Layers that a
+  context mode had already switched off no longer stay in the share link and
+  come back on reload (samehkhamis, #1417).
+
+- Restore a share link opened in an already-open tab. Pasting a link into the
+  address bar, following one, or using Back/Forward now moves the camera and
+  restores the style, map, panels and layers instead of changing only the URL
+  (samehkhamis, #1416).
+
+- Add a Scope checkbox and extend feathering to 200%, retaining scope settings
+  across HUD layouts, share links and scenes. First run opens with Scope ON at
+  100% feather; explicit settings and historical links retain their values. Give
+  Tactical, Operator and Minimal text black backplates only when Scope is OFF,
+  including vertical metadata, without changing the original HUD text color, glow or
+  opacity. Scope ON retains its original HUD presentation (bilawalsidhu, #1410).
+  Keep title and tagline positions stable when toggling Scope, include the eye
+  in the title backing, and brighten the two secondary labels only with Scope OFF.
+
+- Remove four modules nothing in the app imports: `src/app/sourceSlot.js`,
+  `src/data/flowTiles.js`, `src/data/issPass.js` and `src/data/localGeojson.js`.
+  The local GeoJSON layer tests now build layers the way the catalog does, so
+  they keep covering `localGeojsonCore.js`. Package exports are unchanged
+  (samehkhamis, #1403).
+
+- Aircraft on the ground keep getting ground-height samples after the
+  computer's clock steps back, instead of waiting for it to catch up
+  (quanticsoul4772, #1399).
+
+- The Sharpen slider at 0 now turns the sharpen pass off instead of still
+  sharpening at a low amount (quanticsoul4772, #1398).
+
+- Show a locally heard aircraft tracking 359.5° or more as TRK 0°. The Local
+  ADS-B card rounded the track without wrapping, so 359.7° read "TRK 360°"
+  (Rudy Celekli, @rudycelekli, #1396).
+
+- Report a fire detection's acquisition time as a UTC timestamp in
+  `get_active_fires`. The tool joined FIRMS's unpadded date and time, so a
+  00:45 UTC detection read "2026-01-01 45"; it now reads
+  `2026-01-01T00:45:00.000Z`. Missing or invalid dates and times remain
+  unknown rather than rolling into another calendar day
+  (Rudy Celekli, @rudycelekli, #1395).
+
+- Report Docker container health with a local HTTP check using Node, with the
+  same port parsing as the launcher (John Rogers, @14traits, #1394).
+
+- Start the Docker install on SELinux hosts such as Fedora and RHEL. Compose now
+  mounts the checkout with `:z`; without it the container could not read `/app`
+  and stopped with "Cannot find module '/app/scripts/docker-start.mjs'"
+  (Anıl Güvenç, @anilguvenc, #1391).
+
+- Render awareness-overlay bearings and courses that round through north as
+  `000°`, rather than `360°` (Rudy Celekli, #1390).
+
+- Show cockpit wind from 359.5° or more as 0°, not 360°. Rounding 359.6°
+  printed "N · 360°" on the local wind direction
+  (Rudy Celekli, @rudycelekli, #1389).
+
+- Show a drawn line of 999.5 m or more as 1.0 km. The draw hint kept metres
+  below 1000, then rounded 999.6 m up to "1000 m"
+  (Rudy Celekli, @rudycelekli, #1388).
+
+- Show a Contacts entry 999.5 m or more away as 1.0 km. The panel kept meters
+  below 1000, then rounded 999.6 m up to "1000 m"
+  (Rudy Celekli, @rudycelekli, #1387).
+
+- Show a route leg of 995 m or more as 1.0 km. The route summary and step
+  cards kept meters below 1000, then rounded 996 m up to "1000 m"
+  (Rudy Celekli, @rudycelekli, #1386).
+
+- Show a route leg of 59.5 seconds or more as 1 min. The route summary and step
+  cards kept seconds below 60, then rounded 59.6 s up to "60 s"
+  (Rudy Celekli, @rudycelekli, #1385).
+
+- The HUD's AI place summary drops a reply that arrives after the camera has
+  started moving, so a summary asked for before a flight no longer names the
+  old place mid-flight. Cancelled or partially typed summaries retry even if the place
+  context stays the same (quanticsoul4772, #1384).
+
+- Reduce repeated work in aircraft detection candidates by caching unchanged
+  callsign/registration text and reusing resolved fleet models. Metadata updates,
+  live positions and tracked-aircraft/model handoffs remain immediate
+  (samehkhamis, #1379).
+
+- Increase touch-first globe zoom sensitivity to three times the default while
+  retaining Cesium collision and distance limits.
+- Reuse one delayed display timestamp per civil-aircraft fleet update and cache
+  extrapolation coordinate frames until their fix coordinates change. Preserve
+  contact counts, movement cadence, tracked motion and ground corrections.
+
+- Turning a layer off frees the memory its entities held. Cesium kept
+  removed layers' draw commands in reused per-pass arrays, so Data Centers
+  kept 116 MiB after it was switched off, submarine cables 74 MiB and dams
+  30 MiB; they now keep 13, 9 and 9 MiB (quanticsoul4772, #1367).
+
+- Aircraft 3D models (Flights, Military Flights, Local ADS-B) skip Cesium's
+  dynamic environment map, a sky render and GPU readback per model. With
+  ~150 models in the scene at Atlanta on Google 3D, GPU time per frame at
+  rest falls from 14.3-14.8 ms to 12.1-12.5 ms; a same-model comparison
+  showed no visible change (quanticsoul4772, #1366).
+
+- Drop the decimal when fire radiative power rounds to 10 MW. A 9.96 MW
+  detection was labeled 10.0 MW because the one-decimal cutoff ran before
+  rounding (Rudy Celekli, @rudycelekli, #1354).
+
+- Count a transit report that is 90 seconds old as one minute. The card kept
+  seconds through 89s, then rounded 90s up to "Reported 2 min ago"
+  (Rudy Celekli, @rudycelekli, #1353).
+
+- Read a destination heading that rounds to north as 000. 359.6° was shown as
+  360° on the destination bearing while the compass tape already uses 000
+  (Rudy Celekli, @rudycelekli, #1352).
+
+- Keep a tracked vessel's speed, course, heading and fix time when AISStream
+  static data arrives; the static message only merges name, type, destination
+  and IMO (rudycelekli, #1351).
+- Apply changed static metadata immediately, retaining known fields when a
+  later static report omits them, without refreshing the vessel's position
+  (samehkhamis, #1351).
+
+- Convert NHC cyclone movement speed from miles per hour to knots, so
+  `movement.speedKt` in cyclone query results is no longer about 15% high
+  (rudycelekli, #1350).
+
+- Label NHC cyclone classifications by their published meanings: `PTC` is a
+  post-tropical cyclone, `PC` a potential tropical cyclone, and subtropical
+  systems arrive as `STS` and `STD` (rudycelekli, #1349).
+
+- Wake staged weather imagery on a 150 ms timer while waiting for readiness,
+  avoiding a continuous render loop and cancelling the wake when work ends
+  (@nu-stats, #1345).
+
+- Phrase slight and sharp ramps as directions, so a ramp reads "slightly left"
+  instead of "on the slightly left", and a lane names its side in both
+  the proxy response and localized browser instructions
+  (Rudy Celekli, @rudycelekli, #1343).
+
+- Keep an impossible wildfire acquisition date off the detection clock, so a
+  fire is not labeled with a later day it did not happen
+  (Rudy Celekli, @rudycelekli, #1342).
+
+- Reject impossible KartaView photo timestamps, so 31 February is unknown
+  instead of rolling forward into March and passing the imagery date filter
+  (Rudy Celekli, @rudycelekli, #1341).
+
+- Read a hemisphere letter that is separated from its number, so a search for
+  `40.7128 N 74.0060 W` flies there instead of falling through to the geocoders
+  (Rudy Celekli, @rudycelekli, #1340).
+
+- Carry HUD LAT/LON seconds that round up to 60.00" into the minutes and
+  degrees, so longitude -122.35 reads `122°21'00.00"W` instead of
+  `122°20'60.00"W` (rudycelekli, #1339).
+
+- Improve touch selection of aircraft and vessels through the shared contact
+  picker, reveal tracked aircraft details when opening Context, support downward
+  swipe dismissal of phone drawers while preserving scrolling and controls, and
+  enlarge the phone logo (samehkhamis, #1338).
+
+- Evict terrain-height cache entries in fetch-time order without repeatedly
+  sorting the full cache, while keeping refreshed points newest and ordering
+  restored entries by their fetch time (daikaginza, #1326).
+
+- Add a phone layout for viewports 720px and narrower: the globe stays full
+  screen and a bottom tab bar (Layers, Cameras, Context, Search, More) opens one
+  panel sheet at a time, keeping attribution visible and scene STOP reachable.
+  Adapted from the phone tab-shell in #203 by blearymoth (samehkhamis, #1325).
+
+- Export the KartaView and Panoramax Street Level providers, so a host composing
+  its own provider list can offer the keyless providers without Mapillary
+  (samehkhamis, #1324).
+- A Mapillary source can take a `graphEndpoint`, a Graph API base that adds the
+  token itself (such as a same-origin proxy). Its sequence lookups go there
+  through the source's transport, and the photo viewer uses MapillaryJS's
+  Graph provider at that endpoint, so no client token is needed in the page
+  (samehkhamis, #1324).
+
+- Remove dead code across the repository: three modules nothing imports
+  (`src/ui.js`, `src/standalone/ui.js`, `src/data/localLayers.js`), exports
+  and locals nothing reads, a duplicate copy of the bundled dams data and an
+  unused ship model. The app no longer builds an unused default wind layer
+  and Bhote Koshi locator layer when it loads. Package exports are unchanged
+  (samehkhamis, #1321).
+
+- Validate provider response formats, strengthen camera source checks, and apply consistent API response protections (samehkhamis, #1317).
+
+- Clarify shared field CSS ownership: CCTV owns calibration editor sizing,
+  while Radio and Cyber supply explicit field palettes without changing the
+  current appearance or native control behavior (mazy1998, #1309).
+
+- Share read-only status badge presentation across CCTV source/frame labels,
+  calibration provenance and Weather coverage, preserving status meanings,
+  palettes, translations and announcements while preparing the view contract
+  for a future Vue migration (mazy1998, #1306).
+
+- Share native dropdown and numeric-field styling across Scene, CCTV, Display
+  and Radio controls, with a shared CCTV number-input builder that preserves
+  existing precision, validation and commit behavior (mazy1998, #1305).
+
+- Point distances wrap longitude differences across the antimeridian, in voice
+  proximity checks and `places_nearby` (quanticsoul4772, #1304).
+
+- `get_wind` flags stale forecasts (`stale`) when the wind proxy serves a
+  cached model run (quanticsoul4772, #1303).
+
+- Give ordinary Scene and CCTV actions shared native buttons with consistent
+  default, destructive and compact styling while preserving their existing
+  behavior and specialized controls (mazy1998, #1302).
+
+- Unify segmented selectors for model coverage, detection allocation, drawing
+  shape, Street View and imagery comparison while preserving their existing
+  behavior. Keep compact labels such as FILL and FLAT on one line, and let
+  collapsed Weather release space to the open rail panel. Reserve the full mode
+  button height in Recent Imagery so keyboard focus is not clipped (mazy1998, #1301).
+
+- Add a shared Voice Preview and Settings panel with browser-local preferences,
+  inactivity controls and accessible floating provider controls on compact layouts;
+  recover inactivity after confirmed audio-less replies, release retired audio
+  observers and keep cost warnings visible outside Settings
+  (manjunath22466, #1299).
+
+- Add Simplified Chinese (zh-CN) to the language picker, with localized dates
+  and readable Chinese labels. Based on translations by @abiyeenzo (#914)
+  and @EDIT-Aeterna (#979).
+  (German, @gekh, #1298).
+
+- Add the S2 GhostMaps layer: S2 Underground's public KMZ intel products
+  (Common Intelligence Picture, 30-day kinetic pull, Border Crisis Map, Iran
+  and Yemen products and the newest incident drop) from
+  github.com/s2underground/GhostMaps, with one chip per product and report
+  cards on click. `/api/ghostmaps` watches the repository's branch head every
+  15 s and pushes each new commit to open pages, which reload only the
+  products that changed (Black Pine Defense).
+- Clear a temporary GhostMaps upstream error and notify open pages when the
+  repository becomes reachable again, including when no new edition was published.
+- Release packed-image resources when a load is cancelled or fails, respect
+  injected or omitted GhostMaps sources, and wait for background cache warm-up
+  before removing provider test fixtures.
+- Include Simplified Chinese translations and keep the combined voice prompt
+  within its existing size limit while retaining all spoken aliases.
+
+- A Street Level provider whose `zoomFor` still answers `{zoom, kind}`, the
+  shape before the core went slim, draws its lines again instead of a silent
+  blank; an overview level or any answer that is not a whole zoom shows the
+  zoom-in hint (asturksever, #1288).
+
+- Give ordinary sliders a shared native control and consistent track, thumb,
+  value, focus and disabled styling while preserving feature behavior and
+  specialized controls (mazy1998, #1287).
+
+- The Street Level SINCE note sits on the value's line, in its type and a
+  size smaller: with KartaView lit it reads ANY DATE (by upload date). It
+  had lost its size variable in the Street Level slim-down and rendered
+  larger than the value, on a line of its own (asturksever, #1286).
+
+- Keep aircraft route labels on the scheduled airport leg instead of accepting
+  its distant great-circle extensions, preserving generous endpoint tolerance
+  across the signed-angle branch cut (rudycelekli, #1284).
+
+- Report cached CelesTrak satellite records as stale in the Data Layers row,
+  preserving separate core and dense catalog provenance through refresh,
+  removal and lifecycle cleanup (rudycelekli, #1283).
+
+- Pause periodic network updates in hidden tabs; the overdue update on return restarts the polling schedule, so the next poll follows one interval later even when that update fails (asturksever, #1282).
+- Report and guard browser visibility during Transit QA so hidden-page polling pauses cannot masquerade as playback regressions (asturksever, #1282).
+- Require each live city to supply its own feed vehicles in Transit QA; retained vehicles cannot qualify another city (asturksever, #1282).
+- Bound the Transit card-anchor probe by observed poll coverage instead of a fixed 20-second window (asturksever, #1282).
+- Keep visible-page Transit probes focused through the browser testing API (asturksever, #1282).
+- Add a real-browser regression gate for hidden-tab periodic work, explicit refresh, resume and teardown (asturksever, #1282).
+- Restore minimized test windows before screenshots so native compositor pauses cannot stall browser acceptance (asturksever, #1282).
+
+- Hold rendering only for animated content (asturksever, #1281).
+- Exercise current vector road sources and published camera bounds in Traffic fixture QA (asturksever, #1281).
+- Establish browser-level foreground visibility for Traffic QA and reject hidden-page samples (asturksever, #1281).
+- Supply CORS headers on cross-origin traffic fixtures and report browser exceptions without disabling browser security (asturksever, #1281).
+- Isolate the Traffic keyless browser scenario from the keyed page’s workers and intercepted cache (asturksever, #1281).
+- Restore minimized test windows before screenshots so native compositor pauses cannot stall browser acceptance (asturksever, #1281).
+- Intercept only Traffic provider URLs, leaving Cesium worker and module loading untouched (asturksever, #1281).
+- Settle an unfinished Traffic height correction when the last animated point leaves, so the layer stops reporting loading once its render hold is released (asturksever, #1281).
+
+- Throttle mission hover picks with a trailing check for the last pointer position, and clear stale cursors (asturksever, #1279).
+
+- Reserve singleflight before disk cache reads (asturksever, #1278).
+
+- Bound each height request to one upstream chunk (asturksever, #1276).
+
+- Preserve enable during first-load replacement (asturksever, #1275).
+- Release disabled weather camera listeners and make teardown resource leaks fail the browser probe (asturksever, #1275).
+- Keep visible-page weather teardown probes focused through the browser testing API (asturksever, #1275).
+
+- Scan the kml root delimiter in bounded time (asturksever, #1274).
+
+- Retire unavailable history and keep local trails (asturksever, #1273).
+
+- Normalize geocoder bias across the antimeridian (asturksever, #1272).
+
+- Reject inherited style keys during restore (asturksever, #1271).
+
+- Respect provider cooldowns and bound tle groups (asturksever, #1270).
+
+- Coalesce refreshes and cool down opensky failures (asturksever, #1269).
+
+- Normalize station tags and retain valid mixed rows; skipped malformed rows still report degraded coverage (asturksever, #1268).
+- Correct Radio QA push-to-talk setup to target the mounted voice controller (asturksever, #1268).
+
+- Honor Docker Compose trusted-peer and allowed-host settings from the shell
+  or project `.env`, and let `GEV_KEY_SETUP_TRUSTED_PEERS=none` disable gateway
+  access to Provider Settings before Vite starts (asturksever, #1265).
+
+- Prevent malformed Overpass filters from blocking the local server, and reject
+  cross-site or excessive query requests before reading their bodies
+  (asturksever, #1264; fixes #1248).
+- Release unread responses from the optional Google-token probe so keyless
+  browser validation can settle; the Overpass gate recognizes only that probe's
+  expected 404 as an unavailable capability (asturksever, #1264).
+- Make tracking arrival checks respect the aircraft update cadence while checking
+  orientation on the first reveal, avoiding false failures at faster render
+  rates (asturksever, #1264).
+
+- The terrain-heights bounds tests no longer read the checkout's
+  `.gev-cache/terrain-heights.json`. Each test gets a cache file of its own, so
+  `npm test` no longer fails after the dev server has cached terrain near
+  Austin (KnottyDyes, #1244).
+
+- Replace the blocky JPEG sky around the globe with the 9,096 stars of the
+  Yale Bright Star Catalogue, drawn as sharp points where they are at the
+  scene time, over a soft Milky Way from ESO/S. Brunier (CC BY 4.0). The Sun
+  and Moon stay; the anime style hides the Milky Way. Assets: 296 kB (gekh,
+  #1243).
+
+- `get_traffic_flow` flags stale cached TomTom tiles and reports the oldest
+  tile fetch time (`stale`, `oldest_tile_at`), with pending freshness metadata
+  released on failed or cancelled tile reads (quanticsoul4772, #1239).
+
+- Add Taiwan's national freeway cameras from the Freeway Bureau, MOTC to CCTV:
+  ~1,800 cameras read at runtime from the official MOTC 2.0 open-data table,
+  with on-demand snapshots and attribution. No API key is required; set
+  `CCTV_TAIWAN_ENABLED=0` to skip it (419vive, #1237).
+
+- Require a geocoded containment anchor for ambiguous analyst region names,
+  preserve boundary provenance and cancellation safety, and retain exact-name
+  precedence for natural outlines (manjunath22466, #1235).
+
+- Serve the camera catalog while it refreshes. An expired catalog made every
+  camera request wait for the slowest pack to reload; it is now answered at
+  once while one background refresh runs, so only the first load waits. Estonia's
+  slow Tarktee feeds get 30 s instead of 15 s, so the pack no longer drops out
+  on about a third of loads (quanticsoul4772, #1234).
+
+- Harden the Tarktee (Estonia) DATEX2 camera catalog fetches: refuse redirects,
+  cancel both response streams when either response fails or overflows the 4 MB
+  byte cap, and deduplicate camera IDs before per-pack prioritization
+  (yaka0007, #1233).
+
+- Skip bike-share stations with missing, blank or invalid coordinates instead
+  of placing them at coerced zero coordinates or accepting out-of-range values.
+  Explicit zero coordinates and numeric strings remain supported (Bortlesboat, #1232).
+
+- OpenSky sign-in matches what OpenSky accepts since 2026-03-18. The server
+  now reads `OPENSKY_CREDENTIALS_FILE` (the `credentials.json` OpenSky's
+  account page downloads) on every platform, not only through the macOS
+  launcher, and no longer sends retired username/password Basic auth:
+  `OPENSKY_AUTH_MODE=basic` loads anonymously with one warning saying what to
+  set instead (quanticsoul4772, #1229).
+- Credential-file warnings omit parser excerpts and filesystem error details;
+  the path example also works with the macOS launchers.
+
+- Load Ontario 511 cameras again. 511on.ca's camera endpoint now requires a
+  free developer key; set `ONTARIO_511_API_KEY` to enable the pack, which is
+  otherwise skipped with one log line saying where to get a key
+  (quanticsoul4772, #1228).
+
+- The first-run card can be closed on a phone or tablet. "ESC to dismiss" is
+  now a button that closes the card the same way ESC does; touch screens read
+  DISMISS, and phones no longer hide it, so choosing a mission is not the only
+  way out (KnottyDyes, #1226).
+
+- Add continuous globe rotation with direction and speed controls and a globe-fit
+  check before starting (manjunath22466, #1225).
+
+- Open God's Eye View from Pinokio in the system browser using the supported
+  `popout` menu option. The application's framing policy is unchanged
+  (NukeThemAII, #1222).
+
+- Avoid starting or queuing a reply when the local channel rejects a typed OpenAI
+  command, while preserving an earlier accepted deferred input
+  (Manjunath, #1220).
+
+- Keep NASA FIRMS fire and ALPR camera labels English in voice tool results
+  (`track_entity`, `get_entity_context`, pointer context); the voice card still
+  shows them in the interface language (daikaginza, #1207).
+
+- Report actual outcomes when voice enables or disables CCTV through the shared
+  layer lifecycle, including failed and cancelled changes (manjunath22466,
+  #1205).
+
+- Draw CCTV stills at their source aspect on the monitor plane instead of
+  stretching them to the 16:9 canvas. Most DOT cameras publish 4:3 frames, so
+  every still was widened; they are now centered and pillarboxed on the dark
+  the placeholder already ends on (Danielslay86, #1201).
+
+- Color CCTV cameras with a video feed violet. Cameras with an HLS, MP4 or
+  WebM feed were the same cyan as stills, so a DelDOT or Statens vegvesen
+  video camera could only be found by opening it. Stills stay cyan and the
+  active camera stays amber, and focus de-emphasis fades the violet the same
+  way (Danielslay86, #1200).
+
+- Keep Space Missions marked STALE when Launch Library 2 falls back to cached
+  launch data, and return to NOMINAL after a fresh response without discarding
+  retained missions (rudycelekli, #1199).
+
+- Share Launch Library request cache keys across installations refreshing in the
+  same UTC minute, identify the app to the provider, and explain that standard
+  space-missions access needs no key. Optional higher-rate LL2 tokens are paid
+  upgrades; existing local cache and server-only token handling are unchanged
+  (rudycelekli, #1197).
+
+- Add nine Spanish city bike systems to Bike Share and `get_bike_share`: BiciMAD
+  (Madrid), Valenbisi (Valencia), Bizi Zaragoza, Sevici (Seville), BIKI
+  (Valladolid), BiciCoruña, Dbizi (Donostia-San Sebastián), Bilbao Bizi and
+  BicinRivas, about 1,840 stations. Station names read underscores as word
+  breaks, and station capacity counts docks rather than PBSC's geofenced area
+  (ulihhhh, #1190).
+
+- Keep missing launch-pad coordinates unknown so launches use the location
+  fallback or stay off the map instead of appearing at 0°N 0°E. Missing stage
+  flight numbers no longer show "FLIGHT 0"
+  (Rudy Celekli, @rudycelekli, #1186).
+
+- Flights' ground floor works across the antimeridian. The viewer-distance
+  check behind the 150 km floor radius and its copy in the photoreal mesh-floor
+  sampler subtracted longitudes without wrapping, so two points 21 km apart
+  across 180° measured about 38,000 km and low or grounded aircraft just across
+  the line from the viewer were never floored. A contact's display corridor
+  walked a segment across 180° the long way round, spending its cell budget on
+  ground behind the contact, and a contact on the seam lost its cell hysteresis.
+  SEARCH NEARBY SITES on a view across 180° searched Google Places around
+  longitude 0, on the far side of the globe, with a radius sized from the view's
+  height alone; it now searches the view (Aditya, @Rohilalala, #1173).
+
+- Keep missing CCTV numbers unknown instead of reading them as zero. `Number`
+  turns null, blank strings and booleans into 0 or 1, and the camera source
+  list sends an unknown number as JSON null, so a source-pack camera that left
+  out its pose reached the browser as zeros clamped to each field's floor —
+  facing north, pitch −2°, FOV 20°, range 120 m, mount 6 m and ground 0 m —
+  instead of the defaults (id-hash heading, −17°, 74°, 700 m, 24 m and the
+  city's ground); a null or blank position placed the camera at 0,0. The
+  server's `toFiniteNumber` and the browser's `safeNumber` now treat absent,
+  blank and boolean values as missing. The same conversion also stops a
+  Tallinn row with a null heading reading as a confident north-facing camera,
+  a Caltrans camera with a blank elevation losing its 150 m ground prior, and
+  a TfL or Catalonia camera with a null or blank coordinate being kept at 0,0
+  or on the zero meridian (omerbberk, #1172).
+
+- Director shot actions land on the requested shot. A seek to a shot's start
+  could round a hair below it and select the end of the previous shot for some
+  shot counts and durations (Aditya, @Rohilalala, #1171).
+
+- Fire-perimeter queries handle outlines and holes crossing the antimeridian:
+  areas enclosed near ±180° are included, areas at the opposite meridian are
+  excluded, and returned perimeter coordinates stay near the dateline. Incident
+  cards use the same circular longitude mean and compare multipart outline
+  areas along short longitude edges, keeping the card on the largest polygon
+  (Arianna Method, @ariannamethod, #1142).
+
+- Scenes keep the "Scene not saved" status when a capture, update, append or
+  import cannot be saved, and an unreadable saved project no longer overwrites
+  the recovery checkpoint. `startScene()` resolves to its documented result,
+  `afterShotId` works without an explicit scene, and `scenesRun` counts the
+  distinct scenes queued (djabhi31, #1135).
+
+- Label camera-tool Street View fallbacks as historical Google imagery rather
+  than the current camera view; keep unknown frame provenance explicit
+  (rudycelekli, #1118).
+
+- Release superseded Google Street View open waits and suppress metadata
+  requests whose viewer was unmounted while the service loaded (rudycelekli,
+  #1117).
+
+- Exclude aircraft without a reported altitude from requested altitude bands;
+  unfiltered aircraft queries still retain them (rudycelekli, #1115).
+
+- A failed Esri Satellite or keyless terrain load still shows OSM or flat terrain
+  at once, but no longer lasts the whole session: while the fallback is on
+  screen, the real provider is retried in the background (30 seconds, doubling
+  to a 10-minute cap) and replaces it live once it loads. Map switches never
+  wait for a retry (Aditya, @Rohilalala, #1111).
+
+- Skip TLE sets whose line 1 and line 2 carry different catalog numbers, so a
+  spliced catalog cannot pair one satellite's elements with another's; the next
+  valid set still parses (VG31OP, #1101).
+
+- Overpass data whose element tags contain a failure phrase ("timed out",
+  "runtime error", "too many requests" and similar, e.g. a place named "Timed
+  Out Escape Rooms") is returned as data instead of being refused and putting
+  the endpoint on cooldown; upstream failures are read from the remark (Aditya,
+  @Rohilalala, #1097).
+
+- Military aircraft keep their last heading and speed when an adsb.lol row omits
+  `track` or `gs`, instead of turning north and stopping; a grounded row without
+  a speed still reads 0 (Aditya, @Rohilalala, #1096).
+
+- Update DOMPurify to 3.4.17, Sharp to 0.35.5 and source-map-js to 1.2.2 for
+  GHSA-p98j-92pf-mc4p, GHSA-6688-9rhm-gjv2, GHSA-wq5f-xc86-pv6w and
+  GHSA-68fv-2mgg-jv7q; `npm audit` now reports no vulnerabilities (NurstarK,
+  #1094).
+
+- Location search accepts two-dimensional WGS84 `geo:` URIs offline, with
+  the existing coordinate framing and label. Unsupported URI fields are passed
+  to the remaining search providers unchanged (cj-vana, #1071).
+
+- Keyless standalone startup answers an unavailable Google tile-token endpoint
+  with uncached 204 instead of a browser-visible 404. Existing providers take
+  precedence, and unrelated API routes behave as before. (dvilrgamerz, #1066)
+
+- On Windows, `npm run doctor` and the Pinokio install no longer print Node's
+  DEP0190 warning ("Passing args to a child process with shell option true can
+  lead to security vulnerabilities"): npm.cmd's fixed subcommand is now part of
+  the shell command string instead of an argument array (quanticsoul4772, #1057).
+
+- `aircraft_in_area` and `vessels_in_area` take `group_by` and `stats`, so an
+  MCP client can ask which airlines, countries, aircraft types or ship types
+  dominate an area, or the average altitude or speed, over every match instead
+  of estimating from the returned rows. Airlines come from the ICAO designator
+  in each callsign (SWA1234 counts as SWA), so the breakdown works on feeds
+  that report no operator; operator and type are counted only where the feed
+  reports them. Ship types count by family, so AIS codes 70 to 79 are all
+  cargo; type 0 ("not available") and the reserved codes 100 to 255 count as
+  unknown. Altitude and speed stats cover airborne aircraft only, so parked
+  aircraft do not pull the means down. Every vessel answer, `find_vessel`
+  included, now reads AIS ship-type codes as their family and a destination
+  with no letters as unknown (quanticsoul4772, #1056).
+
+- Add Hong Kong Transport Department traffic snapshot cameras as a keyless CCTV
+  source pack: the public DATA.GOV.HK English locations XML, frames pinned to
+  `tdcctv.data.one.gov.hk`, with DATA.GOV.HK Terms of Use attribution. By
+  default nearly the full TD catalog (~1,013 cameras; cap 1,100) loads,
+  prioritized across Hong Kong Island, Kowloon and the New Territories. Headings
+  use the shared id-hash fallback at low confidence. `CCTV_HK_MAX_SOURCES` sets
+  the cap (8–1,200) and `CCTV_HK_ENABLED=0` turns the pack off (JCY2515, #990).
+
+- Cross-site pages can no longer fill the terrain-height cache or spend the
+  visitor's own `/api/terrain/heights` rate-limit quota through the visitor's
+  browser. The route refuses a cross-site `Sec-Fetch-Site` or a foreign or
+  opaque `Origin` before rate limiting, cache access or upstream work. Unlike
+  the cost-bearing routes it still answers same-origin requests that arrive
+  through a reverse proxy, so terrain keeps rendering behind nginx, Caddy or
+  Cloudflare instead of falling back to the geoid (Sunil56224972, daikaginza,
+  #975).
+
+- Street Level is rebuilt around one small provider registry: Mapillary,
+  KartaView, Panoramax and Google Street View share one coverage drawer and
+  one photo viewer, one source lit at a time. Floating and docked panels,
+  FOLLOW, surface modes, the legend and the Mapillary proxy's disk cache are
+  gone; `.gev-cache/mapillary/` from earlier runs is no longer read and can be
+  deleted (gekh, #974).
+
+- Cross-site browser requests can no longer spend the TomTom traffic-tile
+  budget through `/api/tomtom/*`. The shared same-site gate runs before status,
+  cache, and upstream work; same-origin app requests and non-browser local
+  callers remain supported (Sunil56224972, #973).
+
+- Recent Imagery: opening DETAILS scrolls its card into view when it opens below
+  the fold. The panel used to restore the previous scroll position right after
+  the reveal, so the card stayed out of sight (Ian Blenke, #970).
+
+- Harden Vite's filesystem deny list for local-only artifacts: repo `dist/`,
+  `.gev-logs/`, and `.gev-cache/` are denied without blocking dependency
+  `dist/` directories, and checkout paths containing glob metacharacters are
+  escaped before building the root-anchored pattern (blowing-a-raspberry, #948).
+
+- Give each Statens vegvesen camera its own ground height from Kartverket's
+  keyless point-height API (CC BY 4.0) instead of one flat 150 m prior, so
+  mountain-pass cameras no longer sit hundreds of metres below the terrain
+  where neither the point-height prior nor the ground snap resolves. About 850
+  of ~855 cameras get a height; the rest keep the old prior. Requests carry 20
+  points, the most the API answers from its 1 m terrain model, eight at a
+  time; a cold lookup takes about 6–13 s. Cameras over water use the water
+  surface rather than the sea-floor depth the API returns there; for bridge
+  cameras that is still below the deck. Heights are cached for good and misses
+  for 6 h, so a refresh only asks about new or moved cameras. After a
+  failing request (a 408, 429 or 5xx, a network error, a request over 10 s or
+  an unreadable body) the lookup stops and backs off (Retry-After, else
+  30 min, longer than the refresh). The lane waits at most 12 s from its
+  start, and only on a cold cache; a slower first lookup leaves the cameras it
+  had not reached on the flat prior until the next 15-minute refresh, and
+  keeps filling the cache meanwhile.
+  `CCTV_VEGVESEN_HEIGHTS=0` turns it off. Follow-up to #929 (trygvehhh, #945).
+
+- Extract a reusable model-free World Packet from the existing voice
+  `get_current_view_state` owner without restoring disabled layers to the
+  model context. Keep the enabled-only payload, disabled-layer count, source
+  provenance, action result and view-state contract; read the layer roster once
+  per packet; voice retains the speech/card envelope at its own boundary.
+  Credits: original GEV voice/layer contributors and #880 implementation.
+
+- Add optional Gemini Live voice to the standalone app, with a provider chooser,
+  server-held API key, microphone streaming, shared map actions and captions.
+  Switching providers ends the old conversation and preserves the input mode
+  (Manjunath, #872).
+
+- Close the compact Radio disclosure when an adaptive tactical right-rail
+  restore directly expands Context, before Space Missions can be covered.
+  A repeated Context-open request also clears stale disclosure state.
+  Real PanelChrome constructor wiring and the rail reflow path are covered
+  by focused regressions. Credits: kvnloo (#816), raysung-2026's original
+  #804 report, asturksever's review, and quanticsoul4772's independent
+  Windows diagnosis.
+
+- Changelog entries are now one file per pull request. A change adds
+  `changelog.d/<pull request>-<slug>.md` instead of editing the top of
+  `CHANGELOG.md`, which two pull requests in flight could not share — it was the
+  most frequent merge conflict in the open queue, and for six of them the only
+  one. `npm run changelog` splices the directory into `CHANGELOG.md` at release
+  time and empties it; `npm run changelog:check` reports the batch and changes
+  nothing. Fragment text is copied through unchanged (daikaginza, #787).
+
+- Read satellite catalog numbers written in Alpha-5, the TLE spelling of
+  numbers above 99999: a letter for the first two digits, skipping I and O
+  (`A0000` is 100000, `Z9999` is 339999). The satellites layer converted such a
+  field to `NaN`, so every Alpha-5 satellite shared one catalog entry and all
+  but the first were dropped as duplicates; the satellite tools read the same
+  field as no number, so such a satellite could not be found by it. The layer
+  and the tools now decode the field in `src/sources/tle.js`, and reject a
+  malformed one (a sign, decimal point, hex, embedded space or stray letter)
+  instead of reading part of it as a number. This is Alpha-5 TLE
+  compatibility: CelesTrak's TLE feed carries no satellite above 99999, which
+  needs the OMM feed (#1191) (Honorius Neogy, #767, fixes #751).
+
+- The dev server no longer watches `.gev-cache` and `.gev-logs`. Providers write
+  cache files and logs there while the app runs, and none of it is source, so
+  the watcher now skips it; this guards against the DNS-lookup delays heavy
+  cache writes have caused, though no difference was measured on current main
+  (monwiss, #761).
+
+- Bound what a caller can grow through `/api/terrain/heights`. Every distinct
+  5-decimal point was a permanent in-memory entry, a permanent line in an
+  uncapped `.gev-cache/terrain-heights.json`, and a live upstream call, with
+  nothing limiting the rate. The point cache now holds at most 50,000 entries
+  and evicts oldest-first, a cache file above
+  24 MB is not read back, and the route is limited to 90 requests/minute per
+  client (270 global). Evicting a point costs one refetch, never a wrong
+  answer, since terrain does not move. Ordinary use is unaffected: a full
+  `test:track` run drives 10 requests, peaking at 8/min (daikaginza, #686).
+
+- Add FL511 (Florida DOT) traffic cameras as an opt-in CCTV source pack:
+  the statewide ArcGIS catalog, read a page at a time under a byte cap with
+  redirects refused, and frames pinned to FL511's two image hosts over HTTPS.
+  FL511's terms limit its content to individual, personal use, and any other
+  use (a public deployment included) needs FDOT's express written consent, so
+  the pack stays off unless `CCTV_FLORIDA_ENABLED=1`. Headings come from the
+  catalog's direction codes, and camera ids come from the image channel, since
+  the catalog's ID column repeats across regions. `CCTV_FLORIDA_MAX_SOURCES`
+  sets the cap (Danielslay86, #605).
+
+- The client's great-circle distances now come from one shared
+  `src/geoDistance.js` (`greatCircleKm`/`greatCircleMeters`, `{lat, lon}`
+  points). The Earth radius is standardized on 6371.0088 km, so distances shift
+  by about 1.4 ppm and region areas by about 2.8 ppm, and missing or
+  out-of-range points return `Infinity` (onionviolet, #287; Rajojha-1, #749).
+
 - The tracked-aircraft descriptor now publishes `verticalRateMps`, on both the
   civil and military layers, so a consumer reading `getTrackedInfo()` no longer
   has to reach past it into the raw poll record for climb/descent. Reported,
   never derived: an aircraft that has not transmitted a rate reads as `null`
   rather than a level-flight `0`.
 
+- Bound how often the GBFS proxy will relay. `/api/gbfs` already restricted
+  where it could go — https, an allowlisted host, a station feed path, no
+  redirects, a 12-second deadline and a 5 MB body cap — but nothing restricted
+  how often, so the dev server would make unlimited requests at a third-party
+  bikeshare operator on any caller's behalf. The route now admits 120
+  requests/minute per client address, refusing the rest with 429 and
+  `Retry-After` before any outbound fetch. The bikeshare layer needs about 15 a
+  minute with every catalogued system in range, so ordinary use is unchanged.
+
 - Add nine Ontario transit feeds: TTC, MiWay, Hamilton HSR, Durham Region,
   YRT/Viva, Guelph, Burlington, Barrie and Kingston, each carrying its own
   licence quote and attribution. A feed can now name its own modes, so Toronto's
@@ -282,8 +978,6 @@
   point. A slow render gets one bounded second frame request, while hidden,
   stale, moved-camera, invalid and oversized captures still fail closed.
 
-## [Unreleased]
-
 - Add a keyless Air quality layer to the Weather group, with Environment and
   Climate Change Canada's AQHI as the first registered provider. Readings carry
   `{ provider, scale, value, band }` so another network can be added without
@@ -317,9 +1011,8 @@
   [NotProniss](https://github.com/NotProniss) (#1084).
 
 - Street Level: Panoramax is the fourth provider, keyless. Light its chip
-  (orange; off by default, one provider at a time): from orbit dots show
-  where the federated commons has pictures, and below about 60 km its
-  sequences draw as lines from `api.panoramax.xyz` vector tiles. A click on a
+  (orange; off by default, one provider at a time): below about 60 km the
+  federated commons' sequences draw as lines from `api.panoramax.xyz` vector tiles. A click on a
   line opens that sequence's picture nearest the click without moving the
   camera, flat or 360°, with cones along the sequence around it and ‹ › /
   ← → following the picture's own links. The 360° and since filters apply,
@@ -377,10 +1070,10 @@
   Maps JavaScript API) and click a street, or press OPEN STREET VIEW, to
   open Google's own panorama in
   the panel, with its arrows, the address and month in the caption, a link
-  to Google Maps and FOLLOW. Share links carry it in the provider switches
+  to Google Maps. Share links carry it in the provider switches
   (`r.google-1`). One provider is lit at a time (lighting one switches the
   other off), Mapillary by default since it is free. Street View's panoramas
-  are all 360°, so the IMAGERY and SINCE filters and the legend apply to
+  are all 360°, so the IMAGERY and SINCE filters apply to
   Mapillary only and hide while GOOGLE STREET VIEW is lit; its globe marker
   is a Google-blue view cone.
 
@@ -419,21 +1112,16 @@
   proposed diagnosis in #927, and [kvnloo](https://github.com/kvnloo) for identifying
   the repair race. Windows/Claude Desktop Cowork confirmation remains outstanding.
 
-- Street Level: a street-level imagery layer modelled on the iD editor's photo
-  overlay, with Mapillary as its first provider (free client token, CC BY-SA 4.0
-  imagery). One right-rail panel holds a chip per provider, shared 360°/flat and
-  captured-since filters, and an embedded viewer with EXPAND, FIT/FILL and
-  FOLLOW (Google 3D only). Coverage lines and image cones are drawn from orbit
-  down to a single street; on Google 3D they sit on the bare earth, refined
-  against the rendered mesh near the camera, so trees and buildings hide them.
-  Share links carry the provider switches, the filters and the panel's collapsed
-  state. A server proxy caches Mapillary coverage tiles (24 h, 1 GiB on disk),
-  refuses cross-site requests, rate-limits per IP and backs off when Mapillary
-  rejects the token or rate-limits.
-
-- The CCTV and Street Level panels are portable: drag the header to float the
-  panel, resize it from any edge or corner, and double-click the header to dock
-  it again. The position persists across reloads.
+- Street Level: street-level imagery from providers, Mapillary first (free
+  client token, CC BY-SA 4.0). A right-rail panel holds a chip per provider,
+  360°/flat and captured-since filters and an embedded viewer with EXPAND and
+  FIT/FILL. Coverage lines (below 60 km) and image cones drape on terrain and
+  Google 3D tiles; opening a photo frames it with one camera flight. Share
+  links carry the provider switches, the filters and the panel's collapsed
+  state. A server proxy adds the token to Mapillary coverage tiles, trims and
+  caches them for 24 h, refuses cross-site requests and redirects, and limits
+  load per IP and upstream. The panel reads KEY REQUIRED without a token and
+  KEY REJECTED when Mapillary refuses it.
 
 - Add Norway's city bikes to the Bike Share layer: Oslo, Bergen and
   Trondheim Bysykkel (Urban Sharing), Kolumbus Bysykkel in Stavanger and
@@ -504,6 +1192,28 @@
   needs only the Map Tiles API and the Maps JavaScript API (Street View). Keyless sessions and the Photon/Nominatim
   fallback order are unchanged.
 
+- Voice can switch on every shipped data layer (the two scene-driven
+  Bhote Koshi layers stay scene-only), including transit, Recent
+  Imagery, wind, the weather layers, cyclones and mapped installations, and
+  understands their spoken names ("buses", "hurricanes", "military bases").
+  One voice manifest (`src/voice/layerManifest.js`) generates the tool enums
+  and aliases, and a unit test fails when a new layer has no entry.
+- `analyst_query` counts up to 250,000 loaded records per layer instead of the
+  first 2,000, and says when a layer went past that (`complete: false`). It
+  also answers over bikeshare stations, transit vehicles, rocket launches,
+  cyclones, ALPR cameras, mapped installations, local ADS-B aircraft and fire perimeters; fire
+  records carry their sensor (VIIRS or MODIS).
+- Unknown fields, operators, units, value types, scope kinds and invalid
+  centres are refused with the allowed values instead of answering zero or widening to anywhere. A
+  layer that is off, still loading or unavailable is reported as such, not
+  as a count of zero; a partly answerable query is marked `partial`.
+  Distance sorts honour `sortDir`, a written unit such as `altitudeM(ft)`
+  converts, and large rankings no longer sort the whole set.
+- Results carry `lat`/`lon` for each item and a `display` object with the
+  scope, the feed window (earthquakes and fires cover the last 24 h) and any
+  caveat for the screen. The model is asked to answer in one short phrase.
+- The weather and Recent Imagery panels can be opened by voice.
+
 ## [0.2.1] — 2026-10-02 — God's Eye View through Your Agent (with security fixes and other features)
 
 - Ship each bundled data pack once. The region, marine, admin-boundary,
@@ -786,32 +1496,6 @@
   (`src/ui/imagerySplit.js`, `src/maps/imageryComparison.js`), and
   `MapSourceController.subscribe()` reports every settled map switch.
 
-## Unreleased — voice reaches every layer; honest analyst answers
-
-- Voice can switch on every shipped data layer (the two scene-driven
-  Bhote Koshi layers stay scene-only), including transit, Recent
-  Imagery, wind, the weather layers, cyclones and mapped installations, and
-  understands their spoken names ("buses", "hurricanes", "military bases").
-  One voice manifest (`src/voice/layerManifest.js`) generates the tool enums
-  and aliases, and a unit test fails when a new layer has no entry.
-- `analyst_query` counts up to 250,000 loaded records per layer instead of the
-  first 2,000, and says when a layer went past that (`complete: false`). It
-  also answers over bikeshare stations, transit vehicles, rocket launches,
-  cyclones, ALPR cameras, mapped installations, local ADS-B aircraft and fire perimeters; fire
-  records carry their sensor (VIIRS or MODIS).
-- Unknown fields, operators, units, value types, scope kinds and invalid
-  centres are refused with the allowed values instead of answering zero or widening to anywhere. A
-  layer that is off, still loading or unavailable is reported as such, not
-  as a count of zero; a partly answerable query is marked `partial`.
-  Distance sorts honour `sortDir`, a written unit such as `altitudeM(ft)`
-  converts, and large rankings no longer sort the whole set.
-- Results carry `lat`/`lon` for each item and a `display` object with the
-  scope, the feed window (earthquakes and fires cover the last 24 h) and any
-  caveat for the screen. The model is asked to answer in one short phrase.
-- The weather and Recent Imagery panels can be opened by voice.
-
-## Unreleased — local receiver feeds
-
 ### Local receiver feeds
 
 - The Local ADS-B layer also reads local 1090 MHz and 978 MHz UAT decoder
@@ -954,7 +1638,6 @@
 Add feed provenance to analyst/view answers and HUD context while retaining existing response fields and runner ownership (Matt Van Horn, #347).
 
 Analyst records for loaded satellites, datacenters and dams, with explicit bounded count/rank coverage (Matt Van Horn, #351).
-
 - New Fire Perimeters layer (Events group): live NIFC WFIGS interagency
   wildfire incident perimeters as ground-clamped polygons with a
   containment-colored fire line, refreshed every 5 minutes from the public
@@ -1231,6 +1914,7 @@ of current runtime behavior, see [`docs/CURRENT-STATE.md`](docs/CURRENT-STATE.md
 
 ### Other changes
 
+
 - Add ECMWF IFS model selection to Wind (#464, thanks @beneduzi), with model-scoped forecast-step caches, cancellation of replaced requests, and separate issue/valid timestamps.
 
 - Add bounded Director feature actions with accessible controls, explicit camera/layer admission and cancellation; restore pack geometry on same-shot seek. Preserve existing scenes and content attribution.
@@ -2039,3 +2723,4 @@ represent previously published GitHub Releases.
 ## [0.1.0] — 2026-02-09
 
 - Initial project version.
+

CONTRIBUTING.md

@@ -54,9 +54,8 @@ head -40 scripts/qa-radio.mjs  # what this runnable gate proves and how to run i
 Runnable gate entrypoints document what they assert and how to invoke them.
 Most need a dev server; some also need a specific provider key or port. Follow
 the entrypoint's header rather than assuming every matching file accepts the
-same arguments. Five have an `npm run` alias: `qa:map-source-tray`,
-`qa:panel-resize`, `qa:street-level`, `qa:street-level:fixtures` and
-`qa:transit`.
+same arguments. Four have an `npm run` alias: `qa:map-source-tray`,
+`qa:street-level`, `qa:street-level:fixtures` and `qa:transit`.
 
 If you aren't sure which gate covers your change, search `docs/CURRENT-STATE.md`
 for the feature: it names the gate for many of them, and it's the authoritative
@@ -66,11 +65,10 @@ gate for the feature you changed.
 
 > **CI covers only two of these for you.** The workflow runs the setup policy
 > checks, the formatting and package-boundary checks, the unit suite and the
-> production build, plus a Windows onboarding job, and against the built preview
-> it runs `qa:street-level:fixtures` and `qa:panel-resize`. It does not run
-> `npm run test:track` or any other `qa-*.mjs` gate — those need a live dev
-> server and a browser. Include the applicable local run in your PR's
-> validation evidence.
+> production build, plus a Windows onboarding job. It runs neither
+> `npm run test:track` nor any `qa-*.mjs` gate except the Street Level fixture
+> gate (`street-level-browser` job) — they need a live dev server and a
+> browser. Include the applicable local run in your PR's validation evidence.
 
 ## Share-link layer tokens
 
@@ -110,7 +108,7 @@ prints anything; never fix that by renaming or deleting PR A's published token.
 The highest-leverage places to jump in:
 
 - **🌆 Add a CCTV source pack.** Austin is the reference camera source. Adding another city means a clean public camera catalog with coordinates, attribution, and server-registered frame URLs (the proxy only fetches registered URLs — never client-supplied ones, see [SECURITY.md](SECURITY.md)). City packs are the best first lane.
-- **🛰️ Add or improve a data layer.** Layer factories live in `src/layers/<family>/`, with source, record, controller and renderer owners implementing the layer interface (`init/enable/disable/update/destroy/getStats`, optional `getDetectableObjects`/`getStats`). Use an existing layer as a template.
+- **🛰️ Add or improve a data layer.** Layer factories live in `src/layers/<family>/`, with source, record, controller and renderer owners implementing the layer interface (`init/enable/disable/update/destroy/getStats`, optional `getDetectableObjects`/`getStats`). Use an existing layer as a template, and see [Adding a new layer](#adding-a-new-layer) for what the PR needs.
 - **🎙️ Extend voice control.** Voice arguments are defined in `src/voice/actionSchemas.js`, with server-side descriptions in `server/providers/openai/tools.js` and client-side execution in `src/voice/gevActions.js`. Keep the tool surface tight and the responses honest (confirm only what actually happened).
 - **🎨 Add a visual style.** Styles are GLSL post-process shaders in `src/styles/`.
 - **🐛 Fix bugs / improve the first-run experience.** See [docs/KNOWN-ISSUES.md](docs/KNOWN-ISSUES.md).
@@ -118,7 +116,7 @@ The highest-leverage places to jump in:
 ## Architecture in one minute
 
 - **No framework.** Vanilla JS + [CesiumJS](https://cesium.com/platform/cesiumjs/) + [Vite](https://vitejs.dev/).
-- **Assembly lives in `src/app/`; standalone defaults live in `src/standalone/`.** UI controllers live in `src/ui/`, layer factories in `src/layers/`, portable sources in `src/sources/`, and application operations in `src/services/`. Existing `src/ui.js` and `src/data/<layer>.js` entries retain compatibility; new code belongs with its focused owner.
+- **Assembly lives in `src/app/`; standalone defaults live in `src/standalone/`.** UI controllers live in `src/ui/`, layer factories in `src/layers/`, portable sources in `src/sources/`, and application operations in `src/services/`. Existing `src/data/<layer>.js` entries retain compatibility; new code belongs with its focused owner.
 - Sources acquire records; renderers own Cesium resources. Import `gods-eye-view/layers/<family>/source` when only a source factory is needed. Common voice controls consume the session interface; protocol adapters own connection details.
 - **Secrets stay server-side.** Anything needing a private key goes through a local proxy under `server/providers/`. The browser only ever sees the Google Maps key (which you restrict) and ephemeral tokens.
 - `docs/CURRENT-STATE.md` is the authoritative runtime reference — read it first.
@@ -155,6 +153,33 @@ ownership and adoption process.
 3. If you change runtime behavior, update `docs/CURRENT-STATE.md` in the same PR, and add your changelog entry as `changelog.d/<pr-number>-<slug>.md` instead of editing `CHANGELOG.md` — see [changelog.d/README.md](changelog.d/README.md). Distinct filenames don't conflict; a release assembles the directory into `CHANGELOG.md`. A documentation claim that needs a regression test should assert against `docs/CURRENT-STATE.md` or `README.md`, which a PR still edits directly.
 4. If you add or change a data source, update [DATA_SOURCES.md](DATA_SOURCES.md) with its license and attribution. **Don't add data you don't have the right to redistribute** — fetch it at runtime instead.
 5. Describe what you changed and how you verified it (screenshots welcome for anything visual).
+6. If you add a new layer, fill in the new-layer section of the PR template. See [Adding a new layer](#adding-a-new-layer).
+
+## Adding a new layer
+
+A new layer changes what everyone sees on the globe, so maintainers need to see
+it working and know where its data comes from before reviewing the code. PRs
+that add a layer must include all four of these in the description. The PR
+template has a section for them.
+
+1. **Screenshots.** At least one of the layer on the globe, plus its info card
+   or panel if it has one.
+2. **A screen recording**, preferably 15 to 30 seconds: turn the layer on, move
+   around, and open a record. Drag an `.mp4` or `.mov` into the PR description.
+   GitHub accepts videos up to 10 MB on free accounts, so link to a larger file
+   instead of attaching it.
+3. **The proposed category.** Say which layer-panel group the layer belongs in.
+   The groups are defined in `PANEL_GROUPS` in `src/ui/layerPanel.js` (today:
+   Movement, Cameras, Infrastructure, Events, Weather and Utilities). A layer
+   that isn't listed there falls under "Other layers". If none of the groups
+   fits, propose a new one and explain why.
+4. **The data source and licence.** Name the provider and endpoint, link its
+   licence or terms, give the attribution shown in the app, and say whether it
+   needs a key and whether the data is fetched at runtime or bundled. Add the
+   same details to [DATA_SOURCES.md](DATA_SOURCES.md) and register the credit
+   in `src/data/dataCredits.js`.
+
+Maintainers may hold a layer PR until all four are there.
 
 ## Maintainers
 

DATA_SOURCES.md

@@ -20,10 +20,10 @@ How to read this:
 | **NOAA nowCOAST observed weather** (`nowcoast.noaa.gov/geoserver/observations/{weather_radar,satellite}/ows`, WMS 1.1.1) | Rain radar (MRMS base reflectivity, contiguous US, about 4-minute updates) and Satellite clouds (GOES-19/18 Band 14 regional infrared, about 5-minute updates; global infrared mosaic, hourly). Keyless; layer metadata refreshed every 2 minutes, exact-time images cached for up to 24 hours | [NOAA disclaimer](https://oceanservice.noaa.gov/disclaimer.html) | "NOAA nowCOAST · NWS/OAR MRMS radar; NESDIS GOES and global satellite partners" |
 | **NOAA nowCOAST lightning density** (`nowcoast.noaa.gov/geoserver/observations/lightning_detection/ows`) | Lightning density: 15-minute accumulated strike density on an approximately 8 km grid, Americas and Pacific. Keyless; layer metadata refreshed every 10 minutes, exact-time images cached for up to 24 hours | NOAA Level-5 derived product from Vaisala NLDN/GLD360; the [product description](https://ocean.weather.gov/lightning/lightning_pdd.php) permits public distribution of this density product, not of raw Vaisala detections | "NOAA/NWS nowCOAST; derived from Vaisala NLDN/GLD360" |
 | **NOAA NHC / CPHC advisories** (`www.nhc.noaa.gov/CurrentStorms.json` + the `mapservices.weather.noaa.gov` tropical weather summary MapServer) | Cyclone advisories: storm positions, forecast tracks, points and cones for the Atlantic and eastern/central North Pacific. Keyless through `/api/cyclones`; cached for 5 minutes | [NWS public-data terms](https://www.weather.gov/disclaimer); no endorsement implied | "NOAA/NWS NHC / CPHC" |
-| **Mapillary** (vector tiles, Graph API, MapillaryJS) | Street Level: coverage lines, image cones and the embedded viewer. Coverage tiles cached for 24 h | Imagery [CC BY-SA 4.0](https://www.mapillary.com/terms); API under the Mapillary terms with a client token | "© Mapillary contributors, CC BY-SA 4.0", shown on the globe while the provider is on |
+| **Mapillary** (vector tiles, Graph API, MapillaryJS) | Street Level: coverage lines, image cones and the embedded viewer. Coverage tiles kept in server memory for 24 h | Imagery [CC BY-SA 4.0](https://www.mapillary.com/terms); API under the Mapillary terms with a client token | "© Mapillary contributors, CC BY-SA 4.0", shown on the globe while the provider is on |
 | **Google Street View** (Maps JavaScript API) | Street Level, on the Google 3D map only (Google's terms): Google's panorama viewer and nearest-panorama lookups; panorama dates and addresses kept for the session only | Google Maps Platform ToS (your own key + billing; every panorama load is billed) | "Street View imagery © Google" on the globe while the provider is on, and Google's logo and terms in the viewer |
 | **KartaView** (`api.kartaview.org` coverage tiles and photo API, `cdn.kartaview.org` image proxy, `storage*.openstreetcam.org` photos) | Street Level: coverage lines (z13–14 JSON tiles; with the imagery filter on, KartaView's filtered PNG tiles as a mask), nearest-photo lookups, the photo's sequence and the photo itself, fetched by the browser. Keyless; nothing cached beyond the session | Imagery [CC BY-SA 4.0](https://kartaview.org/terms) (KartaView terms §4); the public API needs no token | "© KartaView contributors, CC BY-SA 4.0", shown on the globe while the provider is on |
-| **Panoramax** (`api.panoramax.xyz` meta-catalogue: vector tiles and STAC search; pictures from the federated instance holding each one, e.g. `panoramax.openstreetmap.fr`, `panoramax.ign.fr`) | Street Level: coverage lines and density points, nearest-picture lookups, a sequence's pictures as cones, and the picture itself, fetched by the browser. Keyless; tiles cached by the browser for an hour (the API's own header) | Per picture: mostly [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/), IGN's [Licence Ouverte 2.0](https://www.etalab.gouv.fr/licence-ouverte-open-licence/); the API needs no token | "© Panoramax contributors, licence per picture" on the globe while the provider is on; the caption names each picture's author and licence |
+| **Panoramax** (`api.panoramax.xyz` meta-catalogue: vector tiles and STAC search; pictures from the federated instance holding each one, e.g. `panoramax.openstreetmap.fr`, `panoramax.ign.fr`) | Street Level: coverage lines, nearest-picture lookups, a sequence's pictures as cones, and the picture itself, fetched by the browser. Keyless; tiles cached by the browser for an hour (the API's own header) | Per picture: mostly [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/), IGN's [Licence Ouverte 2.0](https://www.etalab.gouv.fr/licence-ouverte-open-licence/); the API needs no token | "© Panoramax contributors, licence per picture" on the globe while the provider is on; the caption names each picture's author and licence |
 | **OpenStreetMap** | Map and place data (roads, military areas and names, ALPR, place search, outlines); via vector tiles, hourly ALPR extract, bundled data, Nominatim and optional self-configured Overpass | [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/) | © OpenStreetMap contributors |
 | **Google Map Tiles API** (Photorealistic 3D Tiles) + Places/Geocoding | The 3D globe, voice scene context, and on-demand nearby installation search                                                         | Google Maps Platform ToS (proprietary, your own key + billing)                                                                                                                                                                                                                                                                                        | "Google" / "Google Maps" logo — **shown in-app**, required                                                                                  |
 | **OpenSky Network**                                                   | Primary worldwide live-flight snapshot                                                                                              | Non-commercial research/education license                                                                                                                                                                                                                                                                                                             | Schäfer et al., _"Bringing Up OpenSky"_, IPSN 2014 + opensky-network.org                                                                    |
@@ -38,6 +38,7 @@ How to read this:
 | **Environment and Climate Change Canada** (MSC GeoMet OGC API) | Air quality (AQHI) — Canadian station observations | [ECCC Data Servers End-use Licence](https://eccc-msc.github.io/open-data/licence/readme_en/) (open, attribution required, no endorsement implied) | "Contains information licensed under the Environment and Climate Change Canada Data Servers End-use Licence" |
 | **NASA GIBS** (WMTS tiles + Worldview Snapshots) and **NASA CMR** (granule catalog) | Recent Imagery layer: HLS S30/L30 (Sentinel-2, Landsat 8/9) and VIIRS true-colour tiles draped on the map, per-day thumbnails and PNG exports; the HLS granule catalog (dates, cloud, footprints) for a selected box | U.S. public domain (NASA data); keyless, browser-direct (CORS `*`); no bulk use — one 30-day catalog query per box, tiles bounded to the box, six tile requests in flight | "We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS)." — [gibs.earthdata.nasa.gov](https://gibs.earthdata.nasa.gov), [HLS](https://lpdaac.usgs.gov/products/hlss30v002/) |
 | **NIFC WFIGS** (Wildland Fire Interagency Geospatial Services, ArcGIS feature service) | Fire Perimeters layer: current interagency wildfire incident perimeters, containment, and incident facts | U.S. public domain (interagency wildland-fire data published through the [NIFC Open Data portal](https://data-nifc.opendata.arcgis.com/)); fetched keyless through `/api/fire-perimeters` (5-minute server cache) with `exceededTransferLimit` paging | "Wildfire perimeters: National Interagency Fire Center (WFIGS)" |
+| **S2 Underground GhostMaps** (`github.com/s2underground/GhostMaps`) | S2 GhostMaps layer: the current edition of S2's KMZ intel products (Common Intelligence Picture, 30-day kinetic pull, Border Crisis Map, Iran and Yemen products, newest incident drop). Keyless. `/api/ghostmaps` reads the branch head from git's ref advertisement every 15 s (`GHOSTMAPS_POLL_SECONDS`, minimum 5 s), lists the tree through the GitHub REST API only when the head changes (optional `GITHUB_TOKEN`), downloads files by commit-pinned raw URLs into `.gev-cache/ghostmaps/` and pushes new catalogs to browsers over server-sent events | [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) (repository README: "S2 Underground © 2025 by S2A1"); non-commercial, attribution required; files are fetched at runtime, never stored in this repository | "S2 GhostMaps intel products: S2 Underground © by S2A1, CC BY-NC-SA 4.0" — shown in-app |
 | **InciWeb** (inciweb.wildfire.gov)                                    | Per-incident "InciWeb ↗" card links to official incident pages (narratives, evacuation/closure notices) | U.S. government public incident information. Links are matched best-effort by incident name and state, with incident page origin and update times checked on selection. Same-origin `/api/fire-perimeters/inciweb` routes cache the catalog for 1 hour and publication metadata for 30 minutes; linked pages remain InciWeb content | "Incident information: InciWeb (inciweb.wildfire.gov)" |
 | **OpenFreeMap / OpenMapTiles** | Vector tiles | OpenStreetMap data under ODbL 1.0 | OpenFreeMap © OpenMapTiles |
 | **Overture Maps Foundation** | Military area names pack | [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/) | Overture Maps Foundation |
@@ -48,6 +49,7 @@ How to read this:
 | **GDELT Project DOC 2.0**                                             | Fail-soft fallback for location-matched cockpit headlines                                                                           | [GDELT Terms of Use](https://www.gdeltproject.org/about.html#termsofuse): unrestricted academic/commercial/governmental dataset use, with citation and link required; linked articles retain publisher terms                                                                                                                                          | "GDELT Project" plus each article's linked publisher/domain                                                                                 |
 | **City of Austin Open Data**                                          | CCTV camera catalog + frames                                                                                                        | City of Austin Open Data Terms of Use                                                                                                                                                                                                                                                                                                                 | "City of Austin, TX — data.austintexas.gov"                                                                                                 |
 | **TxDOT ITS (its.txdot.gov)**                                         | CCTV camera catalogs + frames, Texas districts                                                                                      | Public TxDOT traffic camera data                                                                                                                                                                                                                                                                                                                      | "Texas Department of Transportation" (courtesy)                                                                                             |
+| **FL511 (Florida DOT)** | CCTV camera catalog + frames, Florida statewide | FL511 content, individual personal use only; any other use needs FDOT's express written consent ([terms](https://fl511.com/privacy#disclaimer)). **Off by default**; set `CCTV_FLORIDA_ENABLED=1` to enable | "Florida DOT — FL511.com" (courtesy) |
 | **City of Tallinn (ristmikud.tallinn.ee)**                            | CCTV camera catalog + frames, Tallinn intersections                                                                                 | Public City of Tallinn traffic camera data                                                                                                                                                                                                                                                                                                            | "City of Tallinn — ristmikud.tallinn.ee" (courtesy)                                                                                         |
 | **Transpordiamet / Tarktee**                                          | CCTV camera catalog + frames, Estonia road-weather cameras                                                                          | Public Transpordiamet / Tarktee road camera data                                                                                                                                                                                                                                                                                                      | "Transpordiamet / Tarktee — tarktee.transpordiamet.ee" (courtesy)                                                                           |
 | **Stadt Warendorf webcam**                                            | Webcam frames, Marktplatz / Historisches Rathaus (`config/cctv_sources.warendorf.json`)                                             | Public municipal webcam data                                                                                                                                                                                                                                                                                                                          | "Stadt Warendorf — webcam.warendorf.de" (courtesy)      |
@@ -62,7 +64,9 @@ How to read this:
 | **Servei Català de Trànsit** (+ Ajuntament de Barcelona, Ajuntament de Terrassa) | CCTV camera catalog + frames, Catalonia                                                                              | [Llicència oberta d'ús d'informació - Catalunya](https://web.gencat.cat/ca/generalitat/dades-indicadors/dades-obertes/llicencies) — attribution REQUIRED                                                                                                                                                                                             | "Servei Català de Trànsit"; partner-supplied cameras also name their owner                                                                  |
 | **King County Road Services** (`services.arcgis.com`, King County GIS) | CCTV camera catalog + frames, unincorporated King County WA road network                                                            | [KCGIS Center terms](https://kingcounty.gov/en/dept/kcit/data-information-services/gis-center/about/terms-conditions-copyrights) — attribution required; public ArcGIS layer                                                                                                                                                                          | "King County Road Services" (partner-city cameras name their owner)                                                                         |
 | **WSDOT** (`data.wsdot.wa.gov`)                                       | CCTV camera catalog + frames, Washington State highways                                                                             | [WSDOT travel information disclaimer](https://wsdot.wa.gov/about/policies/travel-information-disclaimer) — public "low volume" feed; catalog cached, frames on WSDOT's own image host only                                                                                                                                                            | "Washington State Department of Transportation (Travel Center)" (courtesy)                                                                  |
+| **Hong Kong Transport Department / DATA.GOV.HK**                      | CCTV camera catalog + frames, Hong Kong traffic snapshot cameras                                                                    | [DATA.GOV.HK Terms of Use](https://data.gov.hk/en/terms-and-conditions) — attribution REQUIRED                                                                                                                                                                                                                                                        | "Hong Kong Transport Department / DATA.GOV.HK"                                                                                              |
 | **Statens vegvesen** (catalog `ogckart-sn1.atlas.vegvesen.no`, frames `kamera.atlas.vegvesen.no`, HLS `kamera.vegvesen.no`) | CCTV camera catalog + frames + live HLS video, Norway road cameras                                                                                   | [NLOD 2.0](https://data.norge.no/nlod/en/2.0) — attribution REQUIRED | "Contains data under the Norwegian licence for Open Government data (NLOD) distributed by Statens vegvesen" |
+| **Kartverket** (`ws.geonorge.no/hoydedata/v1/punkt`)               | Terrain heights (NN2000) used as the ground prior for Statens vegvesen cameras                                                     | [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) — attribution REQUIRED | "© Kartverket", modified (heights over water set to 0 m, rounded to 0.1 m) |
 | **NYC DOT Traffic Management Center** (`webcams.nyctmc.org`) | CCTV camera catalog + frames, New York City five boroughs | NYC DOT requires developers to sign a [data-sharing agreement](https://www.nyc.gov/html/dot/html/about/datafeeds.shtml) for the camera feed. **Off by default**; enable only under your own agreement | "NYC DOT Traffic Management Center" + NYC DOT's required application disclaimer (in the Data attribution popover) |
 | **City of Toronto Open Data** (`opendata.toronto.ca`)                 | CCTV camera catalog + frames, Toronto city streets                                                                                  | [Open Government Licence – Toronto](https://www.toronto.ca/city-government/data-research-maps/open-data/open-data-licence/) — attribution REQUIRED                                                                                                                                                                                                    | "Contains information licensed under the Open Government Licence – Toronto"                                                                 |
 | **GBFS (Lyft / BCycle / Social Bicycles / PBSC)**                     | Bikeshare availability                                                                                                              | Per-feed (attribution-only)                                                                                                                                                                                                                                                                                                                           | Credit the operator (e.g. Austin BCycle) + its `license_url`                                                                                                   |
@@ -110,6 +114,7 @@ The optional Local ADS-B layer and the broadcast-FM receiver use radio you recei
   **Quebec is thinly represented**, and that is upstream rather than a filter here: the province runs its own Info-Smog program, so only a handful of Quebec stations appear in ECCC's national feed. The reporting station count also varies hour to hour as stations report or fall silent.
 
 - **Via Lietuva / Eismoinfo (Lithuania).** Public road-camera catalogs and periodically updated still images from [Eismoinfo](https://eismoinfo.lt/), credited to Via Lietuva / eismoinfo.lt in the app. **Off by default.** The camera endpoints are the eismoinfo.lt website backend and are not among the services listed in Via Lietuva's [open-data statement](https://eismoinfo.lt/eismoinfo-backend/content?id=44), whose conditions are attribution and reuse on the same terms. Until the statement is confirmed to cover the camera photos, the pack loads only when an operator sets `CCTV_LITHUANIA_ENABLED=1`; with the flag unset, empty or any other value, the server makes no request to Eismoinfo. `eismoinfo-backend/camera-info-table` is joined by ID to `layer-static-features/VKR`. Without `lks=true`, the latter returns WGS84 `[latitude, longitude]`; the table's `x/y` instead use LKS-94 metres. Only the official HTTPS `/eismoinfo-backend/image-provider/camera/last?id=…` image endpoint is registered. Catalogs use the shared 15-minute cache; frames are fetched on demand and never bundled or archived. These are periodic snapshots, not continuous video. Camera headings are low-confidence estimates. No API key is required. `CCTV_LITHUANIA_MAX_SOURCES` defaults to 400.
+- **Freeway Bureau, MOTC (Taiwan).** National freeway cameras from the Freeway Bureau's keyless [CCTV static table](https://tisvcloud.freeway.gov.tw/history/motc20/CCTV.xml) in the MOTC 2.0 standard, refreshed daily and fetched at runtime (never bundled). Freeway Bureau traffic data is published under the [Open Government Data License, Taiwan (Version 1.0)](https://data.gov.tw/license), which permits reuse, including commercial reuse, with attribution; the app credits the Freeway Bureau, MOTC, names the dataset and links the licence, as its attribution exhibit asks. The table publishes each camera's MJPEG stream on one of four official camera servers (`cctvn`, `cctvn5`, `cctvc`, `cctvs` under `freeway.gov.tw`). The frame proxy relays single images, so each published stream URL is mapped to the same server's single-JPEG path for the same camera number (`/abs2mjpg/bmjpg` → `/abs2mjpg/jpg`, `/live-view/mjpg/video.cgi` → `/live-view/jpg/image.cgi`); only those exact HTTPS pairs are registered, and the still path is not itself listed in the table. These are on-demand snapshots, not continuous video. Camera headings are low-confidence estimates. No API key is required. The table host does not answer from some networks outside Taiwan (the camera servers do); there the pack is empty, logs one warning and retries hourly. On by default; `CCTV_TAIWAN_ENABLED=0` skips the pack, and `CCTV_TAIWAN_MAX_SOURCES` defaults to 600 (bounded to 1–2000).
 
 - **Google Maps Platform.** You supply your own API key and are bound by [Google's ToS](https://cloud.google.com/maps-platform/terms). Google Maps Content (tiles, geocodes, places) **may not be cached, stored, rehosted, or committed** — this app only ever uses it live, which is the compliant pattern. The "Google" attribution is displayed on the globe and must stay visible. Restrict your key (see [SECURITY.md](SECURITY.md)).
 - **OpenSky Network.** Its license is **non-commercial**, and operational use of the REST API in a live product can require a prior written agreement with OpenSky — even for non-profit/government use. If you deploy this commercially, contact OpenSky for your own terms. The flights layer is a toggle and runs anonymously by default.
@@ -152,7 +157,7 @@ The optional Local ADS-B layer and the broadcast-FM receiver use radio you recei
 - **adsbdb enrichment.** `/api/adsbdb` resolves an ICAO hex to aircraft type, model name and registration, and the tracked flight's callsign to an airline and an origin/destination pair. Fan-out is deliberately small because adsbdb is a free community API that publishes no quota: at most 4 requests in flight, dispatches dripped to roughly 5/s, and each key asked for at most once per session, with route lookups reserved for the tracked aircraft. The dev-server proxy caches each key for 24 hours in `.gev-cache/adsbdb.json`, negative answers included, so fresh entries survive server restarts. That gitignored cache remains local to the deployment and is not bundled with this repo. adsbdb publishes no general service license; its README says the route data may not be copied, published, or incorporated into other databases without the explicit permission of David J Taylor, Edinburgh. Deployers are responsible for obtaining any permission their use requires. Enrichment is best-effort and fail-silent — a flight that gets no answer keeps what the flight feed already gave it.
 - **Launch Library 2.** `/api/launches` makes a server-side rolling-30-day query against the supported v2.3 detailed launch endpoint, caches successful responses for 15 minutes in memory and on disk, and serves the last successful response during a throttle or transient outage. Anonymous access is limited to 15 calls/hour; deployments can provide `LL2_API_TOKEN` for authenticated access. The Space Devs' published terms permit using and sharing the API data in any form, ask users not to forward it without adding value, disclaim complete accuracy, and encourage—but do not require—attribution. This app keeps a courtesy credit. Payload and stage/recovery records are shown only when supplied. Failed launches expose their source status and never receive fallback orbit geometry or a live/estimated marker. LL2 supplies launch context and event timing, not continuous ascent telemetry or live orbital state.
 - **TfL JamCams.** The camera list comes from the keyless `api.tfl.gov.uk` endpoint (an optional `TFL_APP_KEY` raises its rate limit); frames come from TfL's public S3 bucket. The "Powered by TfL Open Data" attribution is required by TfL's terms and is registered in the Data attribution popover.
-- **Ontario 511 CCTV.** The camera list comes from the keyless `511on.ca/api/v2/get/cameras` endpoint; frames are server-registered still images under `511on.ca/map/Cctv/`. The source is live-fetched at runtime and attributed under the Open Government Licence - Ontario.
+- **Ontario 511 CCTV.** The camera list comes from the `511on.ca/api/v2/get/cameras` endpoint, which now requires a free developer key (`ONTARIO_511_API_KEY`: sign up at 511on.ca/my511/register, then request it while logged in at 511on.ca/developers/doc; throttled to 10 calls a minute). Without the key the pack is skipped. Frames are server-registered still images under `511on.ca/map/Cctv/`. The source is live-fetched at runtime and attributed under the Open Government Licence - Ontario. Access is governed by Ontario 511's Developer's Access Agreement (511on.ca/developers/resources): the data stays under the Open Government Licence - Ontario unless otherwise specified; key requests are reviewed case by case and ask for the intended use and any third parties that will receive the data; attribution by link to 511on.ca is encouraged, and the Ontario 511 logo may not be altered or used to imply endorsement (this app links and shows no logo); and the data is provided "as is", a disclaimer distributors should pass on, which the credit does.
 - **DelDOT live video cameras.** The keyless `tmc.deldot.gov/json/videocamera.json` catalog supplies active cameras and official `https://video.deldot.gov/live/…/playlist.m3u8` links. The local server transiently buffers bounded MPEG-TS segments in memory and deletes them on session release or idle expiry. No recordings are retained. `CCTV_DELDOT_ENABLED=0` disables the pack. Public availability is not a blanket redistribution license; deployment beyond personal local viewing needs confirmation of applicable DelDOT terms.
 - **Fintraffic weathercams.** The camera list is one keyless GeoJSON request to `tie.digitraffic.fi/api/weathercam/v1/stations` (809 stations / 2,275 presets), sent with the `Digitraffic-User: gods-eye-view` header the service asks clients to identify themselves with and with gzip; frames are stills on `weathercam.digitraffic.fi`, refreshed on each station's 600 s collection interval, which is also the client's ambient-still refresh cadence for this pack (the active camera keeps the usual 10-second refresh). One preset (a fixed camera view) is one camera; stations not `GATHERING` and presets not `inCollection` are dropped. Attribution is required by the CC BY 4.0 licence and is registered in the Data attribution popover. `CCTV_FINTRAFFIC_ENABLED=0` is the kill switch.
 - **DriveBC highway cameras.** The camera list comes from the keyless `https://www.drivebc.ca/api/webcams/` endpoint served by the DriveBC.ca site ([bcgov/DriveBC.ca](https://github.com/bcgov/DriveBC.ca)); frames come from `https://www.drivebc.ca/images/<id>.jpg`, built from the numeric camera id. DataBC's [DriveBC HighwayCams](https://catalogue.data.gov.bc.ca/dataset/bc-highwaycams) catalogue entry publishes the same cameras under the Open Government Licence – British Columbia, but its CSV still lists the retired `images.drivebc.ca` frame URLs, which now return a placeholder. The licence's attribution statement is required and is registered in the Data attribution popover. By default the 250 cameras nearest Vancouver and Victoria load; `CCTV_DRIVEBC_MAX_SOURCES` changes the cap and `CCTV_DRIVEBC_ENABLED=0` turns the pack off. Some cameras in the feed are supplied by partners (TransLink, the City of Vancouver, the City of Surrey, Parks Canada / Alberta Motor Association and others); the feed's per-camera credit is carried onto the camera record and shown beside the provider in the CCTV panel.
@@ -162,15 +167,18 @@ The optional Local ADS-B layer and the broadcast-FM receiver use radio you recei
 - **Warendorf webcam.** The Stadt Warendorf Marktplatz webcam, registered from the curated `config/cctv_sources.warendorf.json` (the Kreis Warendorf registration-office cameras from the contributing PR are indoor waiting rooms and were left out); only the municipal image host is proxied, frames are fetched at request time and never stored or redistributed. Disable with `CCTV_WARENDORF_ENABLED=0`.
 - **Live Traffic NSW cameras.** The camera list is the keyless public `data.livetraffic.com/cameras/traffic-cam.json` feed (Transport for NSW open data, CC BY 4.0); frames are stills on `webcams.transport.nsw.gov.au`, and only that host is registered. That image host answers non-browser clients with an HTML placeholder, so the proxy identifies as a browser for that one host and as itself everywhere else. Frames are fetched at request time and never stored or redistributed. Disable with `CCTV_NSW_ENABLED=0`.
 - **Open Calgary traffic cameras.** Keyless. The camera list is the public Socrata dataset `k7p9-kppz` on `data.calgary.ca`; frames are stills on the city's own `trafficcam.calgary.ca` host, and only that host is registered. Most rows publish an `http://` frame URL and the host redirects those to HTTPS, so URLs are upgraded and pinned to that origin before registration. Frames are fetched at request time and never stored or redistributed. The dataset publishes no camera facing: the `quadrant` field and the quadrant suffix on each camera name are Calgary's address grid, not a bearing, so headings use the shared id-hash fallback at low confidence and are corrected with the in-app calibration gizmo. The licence requires the attribution statement above. Disable with `CCTV_CALGARY_ENABLED=0`.
+- **FL511 Florida cameras.** Off by default; set `CCTV_FLORIDA_ENABLED=1` to load them. The camera list is the keyless FL511 traffic camera layer on ArcGIS (`services.arcgis.com/.../FL511_Traffic_Cameras`), published from a Florida Division of Emergency Management account rather than by FL511 directly, and the service carries no licence text of its own. It is paged up to 2,000 rows at a time, ordered by the layer's object id and following ArcGIS's `exceededTransferLimit`, to cover the ~4,000-camera statewide set. Frames are stills on two Divas Cloud hosts (`images-dis.divas.cloud`, `snapshots.divas.cloud`); both are host-pinned and a row whose image resolves elsewhere is dropped. `CCTV_FLORIDA_MAX_SOURCES` caps the pack (default 500, anchored per region across the state). Each catalog page is read under a 2 MiB cap and redirects are refused. Frames are fetched live at request time and never stored or redistributed. FL511's terms (fl511.com/privacy#disclaimer) license its content for individual, personal use only; any other use, including a public deployment, needs FDOT's express written consent.
 - **Catalonia (Servei Català de Trànsit) cameras.** The camera list is the keyless `https://www.gencat.cat/transit/opendata/cameres.xml` WFS/GML feed, fetched over https with redirects refused and the body read capped at 1 MiB, since the list decides ids, coordinates and which allowlisted frame path is proxied. It carries a `font` field naming the real publisher per camera; this pack keeps SCT's own highway cameras plus hotlinked Barcelona (IMI) and Terrassa municipal cameras (~130 total), each confirmed to return a real frame, so frame URLs are checked against a small host allowlist (`mct.gencat.cat`, `www.bcn.cat`, `emap.terrassa.cat`) rather than one pinned origin (a link carrying `user:pass@` userinfo or an explicit port, or pointing outside that host's frame directory, is rejected even on an allowed host; an SCT `sctidcam` must be a bare `.gif`/`.jpg` filename), and every non-SCT camera carries its real owner as a `credit` shown beside the shared `provider`. The feed carries no compass heading, so every camera loads at low heading confidence (same as TfL and Fintraffic). SCT's own feed link (`RenderService`) needed a workaround: it always 302s to a second endpoint (`TransitCamera`) on a Location the upstream hardcodes as plain http even when requested over https — refused by `fetchWithinHost`'s same-origin (scheme-included) redirect policy — and separately, `mct.gencat.cat`'s TLS setup fails the handshake with Node's fetch outright (`ERR_SSL_WRONG_SIGNATURE_TYPE`) even though other HTTP clients complete it. The loader therefore builds the `TransitCamera` URL itself, over plain http, from `RenderService`'s `sctidcam` id, rather than registering the (broken) upstream link — the only transport this one host actually serves to this runtime. Camera ids are built from the SCT camera file or the partner image path, not the feed's `fid` (which embeds an upstream server-start stamp and changes on every upstream restart), and rows the feed lists more than once collapse to one camera. The feed carries no camera status field, so a camera its publisher has taken offline still registers and shows the publisher's own "image unavailable" still (SCT and Barcelona both serve one with HTTP 200), the same as other packs without a status field. Frames are fetched at request time and never stored or redistributed. The feed itself states no licence; the pack relies on the Generalitat de Catalunya open-data portal's terms for this dataset (the licence and attribution above). Disable with `CCTV_CATALONIA_ENABLED=0`.
 - **King County road cameras.** Keyless. The camera list is one public ArcGIS FeatureServer GeoJSON query (King County DOT Road Services, "King County and WSDOT Traffic Cameras"). The `outFields` list is explicit on purpose: the layer also carries asset-administration columns — including staff names — that are never fetched. Only live, active cameras with frames on the county's own `info.kingcounty.gov` image handler are registered (the feed writes `http://`; the handler serves HTTPS, so URLs are upgraded and pinned before registration). WSDOT-owned rows in the layer are skipped because their frames are WSDOT-hosted, outside the pinned image origin; partner-city cameras hosted on the county image handler (e.g. Newcastle) name their owner as the per-camera credit. The layer publishes no facing, so headings use the shared id-hash fallback at low confidence. Uniquely, the county publishes each camera's hardware `Manufacturer`/`Model` (Cohu 3950/3965, Bosch AUTODOME, Axis PTZ domes); both are carried on the source (and served by `/api/cctv/sources`) as `model` and `manufacturer` for identified-hardware consumers (vendor-generic strings such as `PTZ` name no model and are omitted). Frames are fetched at request time and never stored or redistributed. Disable with `CCTV_KINGCOUNTY_ENABLED=0`.
 - **WSDOT highway cameras.** Keyless. The camera list is the Esri JSON layer `data.wsdot.wa.gov/travelcenter/Cameras.json` — the same layer WSDOT's own Travel Center map consumes (~1,700 point features, EPSG:3857 geometry converted to WGS84 on load; the body carries Windows-1252 bytes and is decoded as such). Only frames on WSDOT's own `images.wsdot.wa.gov` host are registered — the catalog also lists ~70 partner cameras (Oregon DOT, City of Seattle, lodges, airports) whose own terms apply, and those are skipped rather than proxied. WSDOT's layer metadata marks the feed for "low volume" use (see WSDOT's [travel information disclaimer](https://wsdot.wa.gov/about/policies/travel-information-disclaimer)). The catalog is fetched once per CCTV catalog refresh (every 15 minutes), and a camera's frame is fetched only when that camera is viewed; frames are never stored or redistributed. The live feed's `CompassDirection` is a single cardinal (N/E/S/W), `B` (both directions — most rows), `O`, or null. A single cardinal gives a high-confidence heading (the diagonals NE/SE/SW/NW are mapped too should they appear); `B`, `O`, null, and any other code carry no single facing and use the shared id-hash fallback at low confidence. By default the 250 cameras nearest Seattle and Spokane load; `CCTV_WSDOT_MAX_SOURCES` changes the cap (8–1,200) and `CCTV_WSDOT_ENABLED=0` turns the pack off. A keyed WSDOT Traveler Information API serves the same population for higher-volume use and is deliberately not required here.
+- **Hong Kong Transport Department traffic snapshot cameras.** Keyless. The English camera list is the public DATA.GOV.HK XML at `static.data.gov.hk/td/traffic-snapshot-images/code/Traffic_Camera_Locations_En.xml`; frames are stills on `tdcctv.data.one.gov.hk`, and only that host is registered. Frame URLs are rebuilt from each camera key (`https://tdcctv.data.one.gov.hk/{KEY}.JPG`) rather than taken verbatim from the catalog. Stills were probed to answer directly on that origin with no redirect hop. Frames are fetched at request time and never stored or redistributed. The dataset publishes no camera facing, so headings use the shared id-hash fallback at low confidence and are corrected with the in-app calibration gizmo. By default nearly the full catalog loads (~1,013; pack cap 1,100), prioritized nearest Central, Tsim Sha Tsui, Sha Tin, Tsuen Wan, Tai Po, Fanling, Tuen Mun, Yuen Long and Tseung Kwan O so a lowered cap still spans Hong Kong Island, Kowloon and the New Territories. When the sum of packs exceeds the catalog-wide ceiling, shared round-robin keeps every lane represented. `CCTV_HK_MAX_SOURCES` (8–1200) changes the cap and `CCTV_HK_ENABLED=0` turns the pack off. The DATA.GOV.HK Terms of Use require attribution to the Government / Transport Department / DATA.GOV.HK.
 - **Statens vegvesen road cameras.** Keyless. The camera list is one GeoJSON request to the OGC API Features view of the official DATEX 3.1 CCTV site table (`ogckart-sn1.atlas.vegvesen.no/ogc/features/v1/collections/datex_3_1:CctvSimple/items`), so no DATEX account is needed; frames are stills on `kamera.atlas.vegvesen.no/api/images/<cameraId>`, and only that exact path per camera is registered. Cameras the feed reports as faulty are dropped. About 135 working cameras also publish live HLS (`kamera.vegvesen.no/public/<cameraId>/manifest.m3u8`, MPEG-TS); those play as live video through the bounded in-memory HLS relay, with the still as the snapshot fallback, and only that exact manifest path per camera is registered. `CCTV_VEGVESEN_VIDEO=0` keeps every camera on stills. `orientationDescription` names the place a camera faces, not a bearing, so it goes into the label and headings use the id-hash fallback at low confidence. By default every live camera loads (~850); `CCTV_VEGVESEN_MAX_SOURCES` (8–1000) lowers the cap, keeping the cameras nearest Oslo, Bergen, Stavanger, Trondheim, Kristiansand, Bodø and Tromsø and `CCTV_VEGVESEN_ENABLED=0` turns the pack off. Frames are fetched at request time and never stored or redistributed. The NLOD attribution is registered in the Data attribution popover.
+- **Kartverket ground heights for Statens vegvesen cameras.** The camera feed's points are 2D, so the loader asks Kartverket's keyless point-height API (`ws.geonorge.no/hoydedata/v1/punkt`, CC BY 4.0) for the terrain height at each camera. Requests carry 20 points: the API accepts 50, but above ~20 it answers the extra points from contour lines (`hoydekurver`, metres to ~20 m off) or not at all. Eight requests run at a time, about 36 for the whole country: a cold lookup took 6–13 s in testing (single requests 0.6–9.5 s). Answers are matched by the coordinates the API echoes and recorded only for points that request asked about. Over water the API returns the sea-floor depth (`dybdekurver` or `Havflate`), which is replaced by 0 m, the water surface; for the ~14 bridge cameras that is below the deck, but much closer than the sea floor or the flat prior. Heights are cached in memory by position for the life of the server, and points with no height (a few ferry quays and bridges, or a point a 200 answer leaves out) for 6 h, so the 15-minute catalog refresh only asks about new or moved cameras. The first failing request (a 408, 429 or 5xx, a network error, a request over 10 s, or an unreadable or oversized body) stops the lookup, with no retries, and no new lookup starts until the backoff ends (Retry-After when sent, else 30 min, longer than the refresh; bounded to 1 min–1 h). Any other 4xx marks that request's points as having no height and the lookup carries on. The whole lookup has a 30 s deadline; a lookup cut short by it resumes on the next refresh without a backoff. The lane waits at most 12 s, counted from the start of the loader, and only when more than 10% of the cameras have no answer yet; a few new cameras or expired misses are looked up in the background. A slower lookup keeps filling the cache, and the cameras it had not reached keep the flat prior until the next 15-minute refresh (about 190 of 865 on one slow first run). Only coordinates are sent, with the same User-Agent as the other CCTV requests. `CCTV_VEGVESEN_HEIGHTS=0` turns the lookup off. The Kartverket credit, with a note that heights over water are set to 0 m and heights are rounded to 0.1 m, is shown beside the Statens vegvesen entry in the Data attribution popover.
 - **NYC DOT Traffic Management Center cameras.** Off by default. NYC DOT's [developer data feeds page](https://www.nyc.gov/html/dot/html/about/datafeeds.shtml) asks developers who want the camera feed to contact `[email protected]` and sign a data-sharing agreement. This project does not hold one that covers downstream installations, so the pack loads only when an operator who holds their own agreement sets `CCTV_NYC_ENABLED=1`; with the flag unset, empty or any other value, the server makes no request to NYC DOT. The endpoint needs no key. The camera list is the public `webcams.nyctmc.org/api/cameras` catalog (~980 cameras across the five boroughs); frames are stills at `webcams.nyctmc.org/api/cameras/<uuid>/image`, synthesized from a validated UUID rather than taken from the payload, and only that host is registered. Cameras the feed reports as offline are dropped. The catalog publishes no camera facing, so headings use the shared id-hash fallback at low confidence and are corrected with the in-app calibration gizmo. Once enabled, the 250 cameras nearest the borough cores load; `CCTV_NYC_MAX_SOURCES` (8–400) changes the cap. Frames are fetched at request time and never stored or redistributed. NYC DOT asks every application that uses its data to carry its disclaimer; it is registered verbatim in the Data attribution popover.
 - **City of Toronto RESCU cameras.** Keyless. The camera list is the City's public `tmcearthcameras.json` on `opendata.toronto.ca` (dataset "Traffic Cameras", Transportation Services), served as JSONP and unwrapped with an anchored pattern. This is the municipal network the Ontario 511 pack does not carry: downtown arterials plus the Gardiner, DVP, Allen and Lake Shore. The list publishes no frame URL, so frame URLs are BUILT from the documented `CameraImages/loc####.jpg` convention and a strictly-digits camera number, pinning the frame proxy to the portal origin by construction; the list fetch refuses redirects and bounds the body it buffers. Frames are fetched at request time and never stored or redistributed. The dataset publishes no camera facing: the `D1`-`D4` fields are the directions of the *comparison* images (static reference stills captured in 2016 under a different path), not a bearing for the live pan-tilt-zoom frame, so headings use the shared id-hash fallback at low confidence and are corrected with the in-app calibration gizmo. A camera that is temporarily out of service still answers 200 with a byte-identical "Image Unavailable" placeholder rather than an error (about 6% of the network at any moment), so such a camera reads as healthy; the frame it shows is the agency's, not a synthesized one. The licence requires the attribution statement above. Disable with `CCTV_TORONTO_ENABLED=0`.
 - **Camera frame content.** Public camera frames can contain people, vehicles and license plates, and the camera layer does nothing with them beyond putting them on the map. A successful upstream response is relayed as the provider served it: nothing in the camera pipeline blurs, redacts, enhances or restores it, and nothing there runs face, plate or object detection or otherwise recognises or classifies what is in the picture. (The ALPR layer described below maps where plate-reader cameras are, from locations contributors tagged in OpenStreetMap; it reads nothing from any camera frame.) When an upstream has no frame for a camera, what you see instead is a Google Street View still or the app's own placeholder card; the panel's source badge names which of them you are looking at, and a refresh that fails after a frame has arrived leaves the last good picture on screen rather than replacing it. The browser resamples each frame for display: onto a fixed 1920x1080 surface for the camera's projection plane in the scene, and onto a 192x108 canvas for the small ambient card. That scaling is the only change made to the picture, and the only pixels the camera layer reads back are a 64x36 downscale hashed to tell whether the picture has changed. Live streams are piped through; the still path reads the image into memory to pass it on — TxDOT wraps its JPEG in a JSON envelope, which is decoded there — and no frame is written to disk (the disk cache, `.gev-cache/`, holds feed JSON for other layers and never camera imagery). Outside that pipeline, the voice assistant is the one feature that sends imagery anywhere: when it answers a question about what is in view it may attach a downscaled screenshot of the rendered scene — including any camera plane on screen — to the request it sends to the voice model. Frames are fetched only from server-registered camera URLs — a client cannot hand the proxy a URL (see [SECURITY.md](SECURITY.md)). What the app does stays inside the line README draws: no named-person search, no face recognition, no tracking individuals.
 - **Transit (GTFS-Realtime).** The proxy requests only registered operator feeds, validates redirects, bounds responses, and uses conditional requests, short snapshot caching and failure backoff. All sixteen registered regions are live-enabled; each can be disabled independently. Vehicles use delayed playback between reports, with report age and waiting states shown separately. Session-local selected trails are available for every feed. MBTA additionally retains up to 15 minutes of recently observed positions in the running proxy, so available history can survive a browser reload; server restart clears it. History reads never fetch upstream, and other feeds have no proxy retention. Nothing is archived to disk or collected in the background. Operator text credits are included as a courtesy and do not imply endorsement. Heights are aligned to work with Google 3D tiles; subway markers are shown at street level because these feeds do not supply depth. The TTC feed is BusTime, the surface system: it carries buses and streetcars and no subway at all. About four in ten of its vehicles report no route at all (unassigned or deadheading), and those are shown with the feed default rather than a route-established mode. It sends no ETag or Last-Modified, so its conditional requests fall through to the ordinary snapshot cache. Three Golden Horseshoe neighbours run alongside it — MiWay, Hamilton HSR and Durham Region Transit — each bus-only and each polled only near its own region. Durham Region Transit publishes no bearing on any vehicle, so those sprites take their heading from observed movement like any other feed that omits it. Guelph, Kingston and Barrie extend the same pattern eastward and north. Hamilton, Guelph, Burlington and YRT publish route ids that are not the number on the vehicle, so those entries carry a route-name table taken from each operator’s own published GTFS; any id missing from a table renders unchanged rather than blank. A label is never invented: YRT runs a route `9101` that appears nowhere in its published routes, so it stays as the feed sends it. Burlington’s is the one that cannot be shortcut: `351` is route 1 while `3510` is route 10, so the table is a real join rather than a trimmed prefix. GO Transit / Metrolinx is deliberately absent: its REALTIME feed requires an API key issued by manual review, which the keyless admission rule excludes (its static schedule download is keyless, but carries no vehicle positions). Barrie and YRT/Viva each invite acceptance of their licence through a form, and each licence also states that using the data is itself acceptance; this deployment relies on that clause, which is recorded in both entries. Grand River Transit in Waterloo is absent for a different reason: it answers, but its feed header was months stale and it publishes no per-vehicle timestamps, so it would render vehicles that look live and are not. Ottawa’s OC Transpo falls to the same keyless admission rule as GO Transit — its realtime feed requires an API key. London Transit and Thunder Bay Transit publish vehicle positions over plain HTTP with no HTTPS endpoint available. Every other Ontario system — Brampton, Oakville, Niagara, Milton, Windsor, Greater Sudbury, UP Express and a dozen smaller operators — publishes static GTFS schedules only, with no realtime vehicle positions to register. Between the nine included and these exclusions, every Ontario realtime vehicle-position feed catalogued in the Mobility Database is accounted for.
-- **Radio Browser.** `/api/radio/stations` discovers official API mirrors, makes bounded and coalesced healthy/geolocated HTTPS-station queries, caches the normalized public-domain directory for 45 minutes, and may serve the last good catalog for up to seven days during an outage. Refreshes must meet minimum accepted-query and station coverage before replacing a warm catalog; schema-valid responses whose rows all fail the product's health policy do not count as successful queries. A usable partial cold catalog is explicitly `DEGRADED`, and malformed or empty successful payloads are rejected atomically. Every directory and click-count request rejects redirects, validates all resolved addresses as globally routable (including reserved/documentation IPv4 and special/non-global IPv6 exclusions), and pins the TLS connection to a validated address. Only MP3/AAC non-HLS directory rows with public HTTPS stream targets are returned; favicons are intentionally omitted. Pressing play connects one browser audio element directly to the selected broadcaster and calls the directory's click counter through known-ID-only `POST /api/radio/click/:uuid`. GEV never proxies, caches, records, bundles, or redistributes audio. Radio Browser supplies station-level tags, not dependable current-song or upcoming-program metadata, so Radio filtering never claims either. Direct playback exposes the listener's IP address to the broadcaster, whose own stream terms apply.
+- **Radio Browser.** `/api/radio/stations` discovers official API mirrors, makes bounded and coalesced healthy/geolocated HTTPS-station queries, caches the normalized public-domain directory for 45 minutes, and may serve the last good catalog for up to seven days during an outage. Refreshes must meet minimum accepted-query and station coverage before replacing a warm catalog; schema-valid responses whose rows all fail the product's health policy do not count as successful queries. A usable partial cold catalog is explicitly `DEGRADED`, and non-array or empty successful payloads are rejected atomically. Individual structurally malformed rows are skipped rather than failing the whole query; the response carries their bounded `rejectedStationCount` (at most 10,000), which the client adds to its own rejected rows and reports as degraded coverage without discarding the accepted generation. Every directory and click-count request rejects redirects, validates all resolved addresses as globally routable (including reserved/documentation IPv4 and special/non-global IPv6 exclusions), and pins the TLS connection to a validated address. Only MP3/AAC non-HLS directory rows with public HTTPS stream targets are returned; favicons are intentionally omitted. Pressing play connects one browser audio element directly to the selected broadcaster and calls the directory's click counter through known-ID-only `POST /api/radio/click/:uuid`. GEV never proxies, caches, records, bundles, or redistributes audio. Radio Browser supplies station-level tags, not dependable current-song or upcoming-program metadata, so Radio filtering never claims either. Direct playback exposes the listener's IP address to the broadcaster, whose own stream terms apply.
 - **TomTom Traffic.** Optional and BYOK: without `TOMTOM_API_KEY` the traffic layer runs its built-in simulation and no TomTom data (or attribution) appears. With a key, flow vector tiles are fetched through the server-side `/api/tomtom` proxy (120 s cache + a daily tile-budget governor — `TOMTOM_DAILY_TILE_BUDGET`, default 6,000 — sized so a 31-day month stays inside TomTom's 200K monthly free allowance; still a configurable application safety ceiling, not a guarantee; TomTom's [current pricing](https://docs.tomtom.com/pricing/) lists 200K free tile requests per month) and the "Traffic flow data © TomTom" credit is registered in the Data attribution popover the moment live mode activates. TomTom data is served live and cached only transiently (≤120 s TTL under `.gev-cache/`, gitignored) — it is not bundled or redistributed. One 23 KB point-in-time tile snapshot is committed as a decode-test fixture (`src/data/fixtures/`, © TomTom, never served to the app).
 - **Routing (OSRM / FOSSGIS).** `/api/route` proxies the public OSRM instances FOSSGIS e.V. runs for the OpenStreetMap community (car, bike, foot profiles). They are keyless and intended for fair, interactive use — the proxy rate-limits clients (60/min, 200/min total), caps route span and response size, caches each route for 10 minutes, and identifies itself in the User-Agent. Heavy or automated use must run its own OSRM. Routes are computed from OpenStreetMap data (ODbL); the Directions layer and voice routes never redistribute them. A route the router cannot find is reported as such; the Directions layer draws nothing in that case, and voice routes fall back to a clearly labeled straight line.
 - **Re:Earth Terrain.** Keyless (no API key). Used two ways: (1) `src/mapStackController.js` swaps in a `Cesium.CesiumTerrainProvider` pointed at Re:Earth's `cesium-mesh/ellipsoid` quantized-mesh endpoint for globe stacks without a Cesium ion token (e.g. OSM), replacing a flat `EllipsoidTerrainProvider`; falls back to the flat provider if the endpoint can't be reached. (2) The server-side `/api/terrain/heights` proxy (disk-cached, serve-stale) resolves per-point ellipsoidal ground height for entity placement. Both are best-effort with a keyless-safe fallback (bundled EGM96 geoid math) if Re:Earth is unreachable.
@@ -198,6 +206,8 @@ The [Bhote Koshi event pack](public/events/bhote-koshi-2026/README.md), under `p
 | **DataSF Analysis Neighborhoods** (41 SF neighborhood polygons)             | `neighborhoods/`                  | **PDDL 1.0** (public domain)                                                                              | ✅ (no restrictions)                             | "City & County of San Francisco — DataSF" (courtesy — not legally required) |
 | **Natural Earth countries, states and provinces** (260 admin-0/map units + 4,587 admin-1 polygons)             | `natural_earth/`                  | **Public domain**                                                                                         | ✅ (no restrictions)                             | "Made with Natural Earth" (courtesy credit — not legally required)          |
 | **US Census Bureau counties** (3,235 county polygons)                       | `us_census_counties/`             | **Public domain**                                                                                         | ✅ (no restrictions)                             | "U.S. Census Bureau" (courtesy — not legally required)                      |
+| **Yale Bright Star Catalogue** (9,096 stars, sky background)                | `sky/`                            | **Public domain**                                                                                         | ✅ (no restrictions)                             | "Yale Bright Star Catalogue (Hoffleit & Warren, via CDS)" (courtesy credit) |
+| **ESO Milky Way panorama** (eso0932a, blurred cube map, sky background)     | `sky/`                            | **CC BY 4.0**                                                                                             | ✅ (attribution; changes stated)                 | "ESO/S. Brunier"                                                            |
 | **CCTV ground heights** (3,445 cameras)                                     | `cctv_ground_heights/`            | Precomputed camera placement heights, aligned to work with Google Photorealistic 3D Tiles (folder README) | —                                                | —                                                                           |
 | **CCTV Camera Database** model-enrichment extract v2.26.0 (17 camera-model records) | `src/layers/cctv/modelSpecs.js` | **CC0-1.0** (public domain dedication) | ✅ (no restrictions) | "Specs: cctv-database.com" (courtesy — not legally required) |
 
@@ -270,6 +280,11 @@ https://www.naturalearthdata.com/about/terms-of-use/). We credit anyway: "Made w
 Earth". Registration in the in-app `dataCredits.js` attribution list ships with the resolver
 wiring (see below).
 
+### Sky background (`sky/`)
+
+Sources, licences, the changes CC BY asks to state, hashes and build commands
+are in [`sky/README.md`](src/data/local_data/sky/README.md).
+
 ### DataSF Analysis Neighborhoods (`neighborhoods/`)
 
 `neighborhoods/san-francisco.json` bundles the City & County of San Francisco's official

Dockerfile

@@ -39,6 +39,11 @@ COPY --chown=node:node . .
 ENV HOST=0.0.0.0
 ENV PORT=4173
 EXPOSE 4173
+# node:slim has no curl, so probe with Node's built-in fetch. 127.0.0.1 is
+# always on the Host allowlist, and the generous start period covers Vite's
+# first-run dependency optimisation.
+HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
+  CMD ["node", "-e", "fetch('http://127.0.0.1:'+(Number.parseInt(process.env.PORT,10)||4173)+'/').then((r)=>process.exit(r.ok?0:1),()=>process.exit(1))"]
 # The launcher is `npm run dev` plus one step: it trusts the container's
 # gateway address for Provider Settings, because that is where Docker delivers
 # the host's own browser from (never 127.0.0.1). See scripts/docker-start.mjs.

README.md

@@ -111,13 +111,15 @@ app's **POWER UP** panel; [Keys & Costs](#-api-keys) explains the options.
 
 Available on **Windows, macOS, and Linux**. The Pinokio maintainer reports
 cross-platform testing of the fixed installer. The launcher installs the
-locked dependencies, finds a free local port, and opens the app.
+locked dependencies, finds a free local port, and opens the app in your system
+browser. The Server menu item keeps the launcher console available.
 
 **Tried before and installation failed?** Update Pinokio and try again.
 Version 8.2 fixes the launcher installation issue;
 [details from the Pinokio maintainer](https://pinokio.co/posts/01m1m4p9xxm3qw7dnnpj2wr93g).
 
-**Pinokio opens but the globe is very choppy?** Before treating that as a GPU
+**Using an older launcher or opening the embedded view manually?** If the globe
+is very choppy, before treating that as a GPU
 compatibility or minimum-hardware problem, copy the local server URL shown by
 Pinokio and open the same URL in your normal hardware-accelerated browser. One
 Pinokio 8.2.0 user reported severe stutter in Pinokio's embedded view that went
@@ -177,6 +179,16 @@ Publishing it wider is the [Sharing an instance](#-sharing-an-instance) opt-in,
 
 When you widen the publish, also set `GEV_KEY_SETUP_TRUSTED_PEERS=none` so the launcher trusts no gateway address.
 
+```bash
+GEV_KEY_SETUP_TRUSTED_PEERS=none docker compose up
+```
+
+Compose forwards `GEV_KEY_SETUP_TRUSTED_PEERS` and `GEV_ALLOWED_HOSTS` from your
+shell or the project's `.env`; an exported shell value takes precedence. You can
+also put `GEV_KEY_SETUP_TRUSTED_PEERS=none` in `.env` for a persistent setting.
+Unset or blank trusted peers retain automatic gateway discovery; `none` explicitly
+disables it. The startup log confirms that no additional peers are trusted.
+
 <details>
 <summary>Running on Linux, a NAS, or behind a reverse proxy</summary>
 
@@ -197,6 +209,8 @@ env UID=1026 GID=100 docker compose up -d
 
 Keep the `env`: bash treats `UID` as read-only, so a plain `UID=1026` in front of a command is silently ignored. If the container can't write the checkout, it says so at start. Docker Desktop on macOS and Windows maps ownership for you.
 
+On SELinux hosts (Fedora, RHEL), compose mounts the checkout with `:z` so the container may read it; Docker may relabel the checkout for container access, which can take a moment on a large checkout. Without that, the start fails with `Cannot find module '/app/scripts/docker-start.mjs'`.
+
 Behind a reverse proxy, put your keys in `.env` or pass them as environment variables - Provider Settings refuses proxied requests on purpose - and add the hostname you serve it on, for example `GEV_ALLOWED_HOSTS=globe.example.lan` (see [Sharing an instance](#-sharing-an-instance)).
 
 </details>
@@ -309,6 +323,10 @@ _Why cockpit mode exists: you're riding a real aircraft over real terrain — an
 
 ## 🎙️ Talk to It
 
+The standalone app offers **OpenAI** and **Gemini** in the GEV MIC provider chooser. OpenAI is the initial default; your choice is saved in this browser. To use Gemini, add `GEMINI_API_KEY` in Provider Settings or your local `.env` file, then select Gemini. `GEMINI_LIVE_MODEL` defaults to `gemini-3.8-live`. The permanent key stays on the local server, which issues a constrained, single-use session credential.
+
+Changing provider ends the current conversation. If voice is on, the new provider starts with the same open-mic or push-to-talk mode; a held Space key is not carried over. Gemini uses the same map actions and captions, but has no OpenAI cost meter or MINI tier. When Gemini reports that its session has expired, start voice again for a new conversation. The provider chooser does not change the OpenAI-backed AI HUD summary.
+
 > Voice can use an **OpenAI API key** or, on the same machine, an opt-in signed-in **ChatGPT/Codex OAuth** session. The API-key path remains the default. Selecting ChatGPT OAuth in Provider Settings reuses an existing local sign-in or starts the Codex browser sign-in flow and selects OAuth when it completes. The OpenAI key still drives the **AI HUD summary**: a terse, five-word intelligence-style readout of the current view that regenerates as you move.
 
 The OAuth option is experimental. OpenAI documents ChatGPT plan usage for the [Responses API](https://developers.openai.com/siwc/token-sharing-open-source/models-and-inference); a supported third-party Realtime contract for reusing Codex tokens has not been confirmed. A successful token mint does not establish billing or support terms.
@@ -329,6 +347,10 @@ Thirty tools, four jobs — the commands below come straight from the product's
 
 **🎥 Direct it** — drone-operator camera verbs:
 
+“Rotate the globe” spins Earth to the right continuously; ask for left, a speed,
+or stop. If it refuses, follow its reset-and-rotate or further-zoom guidance;
+camera input stops rotation.
+
 > 🗣️ _"Take me to Tokyo."_ · _"Orbit around this area slowly."_ · _"Draw the walking route from the Capitol to Zilker Park."_ → _"Fly the route we just drew."_ · _"Zoom out to a globe view."_
 
 **🖊️ Annotate it** — a whiteboard over the real world:
@@ -377,15 +399,15 @@ Twenty layers and map sources. **Eighteen have a keyless path.** Some offer addi
 | 🌍 **Earthquakes**          | Global seismic activity, last 24h                                                                                                                                                                                                                                                                                                                                                   | USGS                                    | 🟢                                                                                                  |
 | ◍ **Air quality**           | Live AQHI on the published 1–10+ health-risk scale, with a Weather-panel card showing the band legend and the highest readings in view. **Canada only** — ECCC is the first registered provider | ECCC MSC GeoMet                          | 🟢                                                                                                  |
 | 🚗 **Traffic**              | Simulated vehicles on OSM roads. With TomTom, live flow speeds drive the simulation and congestion colors below ~8 km; individual vehicle positions are not live observations                                                                                                                                                                                                       | TomTom + OSM                            | 🟢 simulation · 🟡 live flow speeds                                                                 |
-| 📹 **CCTV Mesh**            | ~4,000 public cameras (shared cap) projected _into_ the 3D space — Austin · Texas (TxDOT) · California (Caltrans) · London (TfL) · Ontario (511) · Finland (Fintraffic) · British Columbia (DriveBC) · Estonia (Tallinn, Tarktee) · Delaware (DelDOT live video) · New South Wales (Live Traffic NSW) · Calgary · Norway (Statens vegvesen) · Toronto · King County (WA) · Washington (WSDOT) · Catalonia (Servei Català de Trànsit), plus opt-in New York City (NYC DOT TMC, needs your own NYC DOT agreement) and opt-in Lithuania (Via Lietuva / Eismoinfo, photo licence unconfirmed). Positions are published; poses are estimated priors **you calibrate by dragging a gizmo on the camera itself** | City APIs                               | 🟢                                                                                                  |
+| 📹 **CCTV Mesh**            | ~4,000 public cameras (shared cap) projected _into_ the 3D space — Austin · Texas (TxDOT) · California (Caltrans) · London (TfL) · Ontario (511, free developer key) · Finland (Fintraffic) · British Columbia (DriveBC) · Estonia (Tallinn, Tarktee) · Delaware (DelDOT live video) · New South Wales (Live Traffic NSW) · Calgary · Norway (Statens vegvesen) · Toronto · King County (WA) · Washington (WSDOT) · Catalonia (Servei Català de Trànsit) · Hong Kong (Transport Department) · Taiwan (Freeway Bureau, MOTC), plus opt-in New York City (NYC DOT TMC, needs your own NYC DOT agreement), opt-in Lithuania (Via Lietuva / Eismoinfo, photo licence unconfirmed) and opt-in Florida (FL511, individual personal use only; other use needs FDOT's written consent). Positions are published; poses are estimated priors **you calibrate by dragging a gizmo on the camera itself** | City APIs                               | 🟢                                                                                                  |
 | 📷 **Mapped ALPR Cameras**  | License-plate-reader camera locations tagged by OpenStreetMap contributors, loaded one city-sized view at a time, with **SHOW NEAREST**. Locations and tags only: no plate data, no video                                                                                                                                                                                           | OpenStreetMap (incl. DeFlock mapping)   | 🟢                                                                                                  |
-| 📷 **Street Level**         | Street-level photos behind one panel, one chip per provider: coverage on the streets, image cones, an embedded viewer and **FOLLOW**. Mapillary, Google Street View, KartaView and Panoramax | Mapillary · Google · KartaView · Panoramax | 🟢 KartaView, Panoramax · 🟡 Mapillary token · 🔴 Google Maps key |
+| 📷 **Street Level**         | Street-level photos behind one panel, one chip per provider: coverage on the streets, image cones, an embedded viewer with full-screen **EXPAND**. Mapillary, Google Street View, KartaView and Panoramax | Mapillary · Google · KartaView · Panoramax | 🟢 KartaView, Panoramax · 🟡 Mapillary token · 🔴 Google Maps key |
 | 📻 **Radio**                | Geolocated world radio with an **analog tuner** — drag the needle across up to 750 stations and the globe flies to each broadcaster                                                                                                                                                                                                                                                 | Radio Browser / broadcasters            | 🟢                                                                                                  |
 | 🚌 **Transit**              | Live buses, trams, metros, trains and ferries with delayed playback between reports, selected-vehicle trails, and mode-coloured DETECT labels — Boston, Austin, Minneapolis, Helsinki, the Netherlands, Norway, South East Queensland, and nine in Ontario: Toronto (surface vehicles; the subway publishes no positions), Mississauga, Hamilton, Durham Region, York Region, Guelph, Burlington, Barrie and Kingston                                                                                                                                               | Operator GTFS-Realtime feeds            | 🟢                                                                                                  |
 | 🚲 **Bikeshare**            | Live station availability                                                                                                                                                                                                                                                                                                                                                           | GBFS                                    | 🟢                                                                                                  |
 | 🧭 **Directions**           | Click A and B on the globe for a street-following drive, walk or cycle route draped on the terrain with turn-by-turn steps — then FLY the camera along it. No key, no geocoder, no mic                                                                                                                                                                                              | OSRM on FOSSGIS servers (OpenStreetMap) | 🟢                                                                                                  |
 | 🔥 **Active Fires**         | Live NASA FIRMS detections, trailing 24h                                                                                                                                                                                                                                                                                                                                            | NASA FIRMS                              | 🟡                                                                                                  |
-| 🚀 **Space Missions**       | Rolling 30-day launches with payload, stage, and recovery detail                                                                                                                                                                                                                                                                                                                    | Launch Library 2                        | 🟢 (🟡 optional token raises the allowance)                                                         |
+| 🚀 **Space Missions**       | Rolling 30-day launches with payload, stage, and recovery detail                                                                                                                                                                                                                                                                                                                    | Launch Library 2                        | 🟢 (🔴 optional paid token raises the allowance)                                                         |
 | 🎖️ **Mapped Installations** | Viewport-bounded military-site context from community mapping — incomplete by nature, and labeled that way                                                                                                                                                                                                                                                                          | OpenStreetMap                           | 🟢                                                                                                  |
 | 🌬️ **Wind**                 | Animated 10 m forecast wind with an optional speed, temperature or pressure color field and a reading at map center                                                                                                                                                                                                                                                                 | NOAA GFS / ECMWF IFS                    | 🟢                                                                                                  |
 | 🌦️ **Observed Weather**     | Rain radar (contiguous US), Satellite clouds (GOES regional or global infrared, Clouds only or Full image) and Lightning density (Americas and Pacific) on one history timeline                                                                                                                                                                                                     | NOAA nowCOAST                           | 🟢                                                                                                  |
@@ -421,9 +443,9 @@ _The Space Missions layer replaying a Falcon 9 ascent — labeled `RECONSTRUCTED
 
 **Setup.** At [mapillary.com/dashboard/developers](https://www.mapillary.com/dashboard/developers), register an application with **Read** access and copy its **Client Token** (`MLY|…`). Paste it into **POWER UP → Mapillary**, or set `MAPILLARY_CLIENT_TOKEN` in `.env` and restart. Without it the panel reads **KEY REQUIRED**. **Google Street View** uses `GOOGLE_MAPS_API_KEY` with the **Maps JavaScript API** enabled for it in Google Cloud; its chip starts off, since every panorama is billed to the key. **KartaView** and **Panoramax** need nothing: their public APIs are keyless.
 
-**Use.** Turn on **Street Level** under DATA LAYERS → Cameras, or with the pill in the STREET LEVEL panel header. Each provider has a chip in its own colour (Mapillary green), and one is lit at a time: lighting one switches the others off. Mapillary, which is free, is lit by default. The **IMAGERY** (ALL / 360° / FLAT) and **SINCE** filters apply to Mapillary, KartaView and Panoramax; Street View panoramas are all 360°, so with Street View lit the filters and legend are hidden. Click a coverage line for its image cones and a cone to open the photo. Light **KARTAVIEW** (purple) and zoom in below about 6 km: its lines are the streets KartaView has photos of, and a click on one opens the photo nearest the click, flat or 360° (drag to look around), with cones along its drive; **‹ ›** or ← → step through the drive (Shift+← →, ↑ ↓ and + − look around a 360° photo; pinch zooms on a phone). Photos KartaView has archived are skipped, and where all are archived the panel says so. For KartaView, **SINCE** goes by upload date, as KartaView's own map does (it can filter by nothing else), and the panel notes it under the slider; KartaView filters its lines on its own server, and a filtered area KartaView has not drawn before can take several seconds, and the unfiltered lines show meanwhile. Light **PANORAMAX** (orange) for the open, federated commons (strongest in France and Belgium): from orbit its dots show where it has pictures, and below about 60 km its lines are sequences. A click on a line opens that sequence's picture nearest the click without moving the camera, flat or 360°, with cones along the sequence around it; **‹ ›** or ← → step through it, and both filters apply. Its caption names the picture's authors (or the instance holding it) and licence (mostly CC BY-SA 4.0; pictures on the IGN instance are Licence Ouverte 2.0). On the **Google 3D** map (Google's terms keep Street View off other maps, where it does not appear), light **GOOGLE STREET VIEW** and click a street from below 3 km, or press **OPEN STREET VIEW** for the view centre, to open Google's panorama there; step along its arrows. Above the photo: **EXPAND**, **FIT / FILL** (Mapillary, and flat KartaView and Panoramax photos), and **FOLLOW** (the globe camera follows the photo's view; Google 3D map only). The caption links to the image on the provider's site, and the globe credits each provider that is on ("© Mapillary contributors, CC BY-SA 4.0", "Street View imagery © Google", "© KartaView contributors, CC BY-SA 4.0", "© Panoramax contributors, licence per picture"). KartaView's own photo pages fail for signed-out visitors, so its link opens the full-size photo.
+**Use.** Turn on **Street Level** under DATA LAYERS → Cameras, or with the pill in the STREET LEVEL panel header. Each provider has a chip in its own colour (Mapillary green), and one is lit at a time: lighting one switches the others off. Mapillary, which is free, is lit by default. Zoom in to street level (below 60 km) for the coverage lines; from orbit the panel says to zoom in. The **IMAGERY** (ALL / 360° / FLAT) and **SINCE** filters apply to Mapillary, KartaView and Panoramax; Street View panoramas are all 360°, so with Street View lit the filters are hidden. Click a coverage line for its image cones and a cone to open the photo. Light **KARTAVIEW** (purple) and zoom in below about 6 km: its lines are the streets KartaView has photos of, and a click on one opens the photo nearest the click, flat or 360° (drag to look around), with cones along its drive; **‹ ›** or ← → step through the drive (Shift+← →, ↑ ↓ and + − look around a 360° photo; pinch zooms on a phone). Photos KartaView has archived are skipped, and where all are archived the panel says so. For KartaView, **SINCE** goes by upload date, as KartaView's own map does (it can filter by nothing else), and the panel notes it beside the SINCE value (ANY DATE (by upload date)); KartaView filters its lines on its own server, and a filtered area KartaView has not drawn before can take several seconds. Light **PANORAMAX** (orange) for the open, federated commons (strongest in France and Belgium): below about 60 km its lines are sequences. A click on a line opens that sequence's picture nearest the click without moving the camera, flat or 360°, with cones along the sequence around it; **‹ ›** or ← → step through it, and both filters apply. Its caption names the picture's authors (or the instance holding it) and licence (mostly CC BY-SA 4.0; pictures on the IGN instance are Licence Ouverte 2.0). On the **Google 3D** map (Google's terms keep Street View off other maps, where it does not appear), light **GOOGLE STREET VIEW** and click a street from below 3 km, or press **OPEN STREET VIEW** for the view centre, to open Google's panorama there; step along its arrows. Above the photo: **EXPAND** (full screen; Esc leaves) and **FIT / FILL** (Mapillary, and flat KartaView and Panoramax photos). The caption links to the image on the provider's site, and the globe credits each provider that is on ("© Mapillary contributors, CC BY-SA 4.0", "Street View imagery © Google", "© KartaView contributors, CC BY-SA 4.0", "© Panoramax contributors, licence per picture"). KartaView's own photo pages fail for signed-out visitors, so its link opens the full-size photo.
 
-Drag the panel header to float the panel, and resize it from any edge. Double-click the header or collapse it to put it back in the rail. Share links carry the provider switches and filters (`0.m.0` Mapillary off, `0.m.0_0.r.google-1` Street View on, `0.m.0_0.r.google-0*kartaview-1*panoramax-0` KartaView on and `0.m.0_0.r.google-0*kartaview-0*panoramax-1` Panoramax on, as the app writes them (`0.m.0_0.r.kartaview-1` and `0.m.0_0.r.panoramax-1` work too; a link that leaves out `m` keeps Mapillary, the default, lit), `0.p.p` panoramas only, `0.s.365` the last year). To add a provider, implement the contract in `src/layers/streetLevel/registry.js` and register it in `src/app/layers/streetLevel.js`.
+Share links carry the provider switches and filters (`0.m.0` Mapillary off, `0.m.0_0.r.google-1` Street View on, `0.m.0_0.r.google-0*kartaview-1*panoramax-0` KartaView on and `0.m.0_0.r.google-0*kartaview-0*panoramax-1` Panoramax on, as the app writes them (`0.m.0_0.r.kartaview-1` and `0.m.0_0.r.panoramax-1` work too; a link that leaves out `m` keeps Mapillary, the default, lit), `0.p.p` panoramas only, `0.s.365` the last year). To add a provider, implement the contract in `src/layers/streetLevel/registry.js` and register it in `src/app/layers/streetLevel.js`.
 
 ## 🎖️ Field Missions
 
@@ -474,7 +496,7 @@ How the globe handles live data:
 ```
 src/
 ├── main.js                 # Bootstrap: Google 3D tiles, layer registration
-├── ui.js                   # Runtime UI — panels, HUD, styles, control facade
+├── ui/                     # Runtime UI — panels, HUD, styles, controls
 ├── hud.js                  # Intelligence HUD + AI scene summary
 ├── keySetup.js             # POWER UP panel — in-app provider keys (dev server only)
 ├── mapStackController.js   # Basemap switching — Google 3D / Esri / OSM / ion stacks
@@ -527,9 +549,11 @@ _What the TomTom key buys you: rush-hour density painted on the city — then di
 |     | Key                  | Why                                                           | Get it                                             |
 | --- | -------------------- | ------------------------------------------------------------- | -------------------------------------------------- |
 | 🟡  | **OpenSky**          | ✈️ More flight-polling credits (🟢 anonymous works without)   | [opensky-network.org](https://opensky-network.org) |
-| 🟡  | **Launch Library 2** | 🚀 Higher space-missions request allowance (🟢 works without) | [thespacedevs.com](https://thespacedevs.com)       |
+| 🔴  | **Launch Library 2** | 🚀 Optional paid token for higher limits (🟢 no key needed for public access) | [thespacedevs.com/supportus](https://thespacedevs.com/supportus) |
 
 Add these if you need higher polling allowances.
+Leave `LL2_API_TOKEN` blank for standard public access. LL2 tokens are optional
+paid Patreon upgrades for higher limits; there is no free API-key signup.
 
 `npm run doctor` reports Node/npm readiness, the primary provider routes, and
 where each configured provider was found without printing credential values.

SECURITY.md

@@ -2,6 +2,11 @@
 
 God's Eye View is a local-first client for **public** data. It is built for exploration, demos, and learning — not as a hardened production service. This document explains the security model so you can run it safely and report issues responsibly.
 
+Vite's development file server also denies `.gev-logs/`, `.gev-cache/`, and
+the package checkout's root `dist/` directory. Dependency `dist/` directories
+remain available. This filesystem deny list does not filter `public/` assets or
+preview output; never put private artifacts in a public asset directory.
+
 ## Reporting a vulnerability
 
 Please report security issues **privately** — do not open a public issue for anything exploitable.
@@ -29,7 +34,7 @@ These are designed to be used directly in the browser (like a Mapbox public toke
 
 1. **Google Maps API key** — loads Photorealistic 3D Tiles directly and powers Street View (Maps JavaScript API; add it to the key's API restrictions). **Restrict it** (HTTP referrer + API restriction to the required Google APIs) in the Google Cloud Console. An unrestricted key in a public deployment can be abused and billed to you. Restrict it to the **Map Tiles API and Maps JavaScript API only**: a referrer restriction applies to the Maps JavaScript API and the client SDKs, not to the web services, so a key carrying Geocoding under one is refused with `API keys with referer restrictions cannot be used with this API`. Search does not need it — geocoding goes through the server proxies above (#363).
 2. **Cesium ion token** (`CESIUM_ION_TOKEN`, optional — for ion-hosted Google Photorealistic 3D Tiles, Bing world imagery, and world terrain) — used as `Cesium.Ion.defaultAccessToken` client-side. Use a public **`assets:read`** token with **URL restrictions** for any hosted deployment. The Community plan has eligibility and usage limits; a public token is not a secret, but it can still consume the account's quota.
-3. **Mapillary client token** (`MAPILLARY_CLIENT_TOKEN`, optional, Street Level) — used by the MapillaryJS viewer and Graph API lookups in the browser, and by the server's coverage-tile proxy. Mapillary client tokens are meant for browser use.
+3. **Mapillary client token** (`MAPILLARY_CLIENT_TOKEN`, optional, Street Level) — used by the MapillaryJS viewer and Graph API lookups in the browser, and by the server's coverage-tile proxy, which sends it only to `tiles.mapillary.com` over HTTPS (an upstream redirect is refused and answered 502, never followed) and caches tiles in memory only. Mapillary client tokens are meant for browser use.
 
 > The explicit browser `define` block in `build/vite.js` controls exactly what reaches the client: only these three keys. Everything else stays server-side.
 
@@ -69,11 +74,13 @@ The data proxies under `server/providers/` are written so the browser cannot tur
 - **No verbatim client headers upstream.** The CCTV media route is the one route that relays a request header (`Range`, for video seeking). It is parsed and canonicalized before it is forwarded: one `bytes=` range only, with every accepted form — explicit span, open-ended and suffix — bounded to the same 64 MiB ceiling the relay applies to a declared response body. Multi-range, malformed, inverted and non-`bytes` values are dropped and the request proceeds without a `Range`, as RFC 7233 §3.1 prescribes. Bounding the request bounds what is asked for: a response that declares no length — live streamed media, or a chunked body from an upstream that ignores the `Range` — has no ceiling. An upstream request the browser has stopped waiting for is cancelled rather than left running, whether the viewer leaves before the headers arrive or during the body.
 - **Transit fetches registered feeds only.** `/api/transit/vehicles/<id>` resolves the id against `src/data/transitFeeds.js`; the browser never supplies a URL, and a feed that is registered but disabled does not resolve at all. Redirects are followed manually and each hop is validated against the feed's own https origin before it is requested, so an off-origin or downgraded hop is refused rather than contacted. Bodies are capped at 8 MB, the protobuf is decoded server-side under entity-count and string-length ceilings, a differential feed is refused, and snapshots live 15 s in memory with no disk cache. A per-feed admission limiter and a failure cooldown ladder bound what this process can ask of any operator.
 - **Local receiver feeds are operator-configured and local-only.** `/api/local-receivers/aircraft` reads only the `aircraft.json` URLs in the server's `LOCAL_RECEIVER_FEEDS`; the browser never supplies an address. Each host must pass the shared tap address rule (`src/data/tapAddress.js`: loopback, RFC1918, `localhost`, `*.local`; no link-local, IPv6 or other names), the scheme must be http(s), the path must end in `aircraft.json`, and credentials, queries and fragments are refused. Invalid entries are logged at startup and never fetched. Reads use a 2 s timeout, refuse redirects, cap bodies at 2 MB and share one read per second; responses name each feed by band only and never carry upstream error text.
+- **Validated response formats.** Proxied bodies are relayed only in the format the route serves. CCTV frames and the Street View fallback accept JPEG, PNG, GIF, WebP and AVIF only, sent under their canonical type; any other type falls through to the next fallback. Live CCTV media must match its feed kind (`video/mp4`, `video/webm`, or `multipart/x-mixed-replace` with a boundary) before it is relayed or the camera counts as healthy, and its redirects stay on the registered origin. GBFS bodies must parse as JSON and are re-serialized as `application/json; charset=utf-8`. Camera catalog URLs are pinned by parsed URL — scheme, exact host, no credentials, default port, and a normalized path inside the agency's image directory — and a redirect on a pinned host must stay inside the same directory. Every `/api/cctv` route uses the keyless cross-site checks described below, so cameras stay reachable behind a reverse proxy; a request carrying forwarding headers never reaches the key-bearing Street View fallback and gets the placeholder frame instead, as when no key is configured.
+- **Consistent API response headers.** Every `/api` response, including errors, partial content, Host refusals and unknown routes, carries `Content-Security-Policy: default-src 'none'; sandbox` and `X-Content-Type-Options: nosniff` (`apiResponseHeadersPlugin` in `build/vite.js`, installed ahead of the Host check). A route that sets its own policy adds it as a further policy; it never replaces this one.
 - **Response-size caps and timeouts** on proxied responses.
 - **Sanitized errors** — internal error details are not echoed back to clients.
 - **Coalesced OAuth refresh** and cached successful responses only (OpenSky).
 - **Redacted debug logging.** The voice debug log (`.gev-logs/`, gitignored) strips API keys, bearer tokens, client secrets, and image data URLs before writing.
-- **Cross-site gate on cost/log endpoints.** The cost-bearing (`/api/realtime/token`, `/api/openai/hud-summary`, `/api/google/nearby-places`, `/api/google/text-search`), quota-bearing (`/api/mapillary/*`, with a per-IP limit on tiles, and `/api/tomtom/*`, backed by its persistent daily tile budget) and log (`/api/realtime/debug-log`) endpoints refuse cross-site browser requests: a foreign or opaque `Origin`, a `Sec-Fetch-Site` other than `same-origin`/`none` (this is what blocks an `<img>`/navigation that carries no `Origin`), or any reverse-proxy/CDN forwarding header returns `403`. Non-browser loopback tools (the repo QA harnesses POST the token endpoint with no `Origin`) and the explicit `HOST=0.0.0.0` LAN opt-in keep working — the gate deliberately does not require a loopback remote address; that stricter requirement belongs only to the credential panel (`admitKeySetupRequest`). The Host check (`allowedHosts`, applied by `hostCheckPlugin` ahead of every route, since Vite's own check runs only after plugin middleware) rejects a rebinding `Host` before any handler runs, in every mode, and the gate is defense in depth behind it: the LAN opt-in keeps that check and accepts only IP addresses, `localhost` and names listed in `GEV_ALLOWED_HOSTS`. **Limit:** a name you list there is trusted like the app's own address, so list only names you control.
+- **Cross-site gate on cost/log endpoints.** The cost-bearing (`/api/realtime/token`, `/api/openai/hud-summary`, `/api/google/nearby-places`, `/api/google/text-search`), quota-bearing (`/api/mapillary/*`, with a per-IP limit on tiles, and `/api/tomtom/*`, backed by its persistent daily tile budget) and log (`/api/realtime/debug-log`) endpoints refuse cross-site browser requests: a foreign or opaque `Origin`, a `Sec-Fetch-Site` other than `same-origin`/`none` (this is what blocks an `<img>`/navigation that carries no `Origin`), or any reverse-proxy/CDN forwarding header returns `403`. Non-browser loopback tools (the repo QA harnesses POST the token endpoint with no `Origin`) and the explicit `HOST=0.0.0.0` LAN opt-in keep working — the gate deliberately does not require a loopback remote address; that stricter requirement belongs only to the credential panel (`admitKeySetupRequest`). The Host check (`allowedHosts`, applied by `hostCheckPlugin` ahead of every route, since Vite's own check runs only after plugin middleware) rejects a rebinding `Host` before any handler runs, in every mode, and the gate is defense in depth behind it: the LAN opt-in keeps that check and accepts only IP addresses, `localhost` and names listed in `GEV_ALLOWED_HOSTS`. **Limit:** a name you list there is trusted like the app's own address, so list only names you control. The keyless terrain route (`/api/terrain/heights`) uses the same cross-site checks, minus the forwarding-header refusal: it guards only the per-client quota and point cache, not a key or a bill, and the map needs it to render behind a reverse proxy. The CCTV routes (`/api/cctv/*`) use the same keyless checks; their one key-bearing step, the Street View fallback, is skipped for any request with forwarding headers.
 - **Full Content-Security-Policy.** The dev and preview servers send a real CSP (`script-src 'self' 'unsafe-eval' blob:` plus the YouTube, Facebook and X scripts the Nepal event's embedded media loads and the Maps JavaScript API that Street View runs on, with a matching `frame-src` for their players and posts: no inline script and no other script origin; `blob:` covers the object URLs Cesium's bundled workers bootstrap through in the built app), alongside the existing `X-Frame-Options: DENY` and `frame-ancestors 'none'`. `'unsafe-eval'` stays because Knockout, bundled inside Cesium's widgets package, resolves the global object with `eval` at load time and the globe does not initialize without it; styles permit `'unsafe-inline'` and Google Fonts because Vite's dev client injects `<style>` elements.
 
 Allowing `maps.googleapis.com` in `script-src` also trusts its JSONP endpoints, which can bypass the script allowlist if an HTML-injection bug exists; this is an accepted limitation of loading the Maps JavaScript API, alongside the existing `'unsafe-eval'` allowance.
@@ -98,6 +105,11 @@ The dev server is a **key broker**: every server-side key above is spendable by
   `compose.yaml` publishes on `127.0.0.1`: **widen that mapping and every LAN
   client arrives from the same gateway address, which hands them Provider
   Settings too.** Treat publishing beyond loopback as the LAN opt-in above.
+  Compose forwards `GEV_KEY_SETUP_TRUSTED_PEERS` and `GEV_ALLOWED_HOSTS` from
+  the shell or project `.env` before the launcher runs. Set trusted peers to
+  `none` when widening the publish: it becomes an explicit empty list before
+  Vite loads configuration, so the gateway cannot regain Provider Settings
+  access. Unset or blank values preserve automatic gateway discovery.
 - **Provider-side budgets are the real backstop.** For hard spend protection, configure limits where the money is: OpenAI platform usage limits, Google Cloud budget alerts + per-API quotas, and equivalent controls for any other keyed provider.
 - **Pinokio LAN and Cloudflare sharing are refused.** The current supported
   Pinokio release re-reads sharing state when an app registers its Open URL and

build/vite.js

@@ -1,9 +1,29 @@
+import { fileURLToPath } from 'node:url';
 import { applicationHtmlPlugin } from './application-html.js';
 import cesium from 'vite-plugin-cesium';
 import { DEFAULT_ALLOWED_HOSTS, hostCheckPlugin } from './allowedHosts.js';
 import { embedFramingPlugin } from './embed-framing.js';
 import { panelBuildPlugin } from './panel.js';
 
+/**
+ * The repository root (this file lives at `<root>/build/vite.js`), as a
+ * forward-slash path for glob matching. Vite's `fs.deny` patterns are
+ * matched against the full absolute file path, and a bare `**\/dist/**`
+ * matches a `dist` directory at *any* depth — including dependencies that
+ * ship their own, such as `node_modules/vite/dist/client/client.mjs` (the
+ * dev client itself). Anchoring to this repository's root denies only the
+ * project's own build output.
+ */
+const REPO_ROOT = fileURLToPath(new URL('..', import.meta.url))
+  .replace(/\\/g, '/')
+  .replace(/\/$/, '');
+
+export function escapeFsDenyPath(path) {
+  return path.replace(/[()[\]{}*?!+@|]/g, '\\$&');
+}
+
+const REPO_ROOT_GLOB = escapeFsDenyPath(REPO_ROOT);
+
 /**
  * Content-Security-Policy for every document the dev/preview server serves.
  * No inline script is permitted, and the only foreign script origins are the
@@ -47,6 +67,75 @@ export const BROWSER_HEADERS = Object.freeze({
   'X-Content-Type-Options': 'nosniff',
 });
 
+/**
+ * Content-Security-Policy for every `/api` response. API routes return data,
+ * never a document, so a response opened directly in a tab gets no origin and
+ * can load nothing.
+ */
+export const API_CSP = "default-src 'none'; sandbox";
+
+/** Response headers every `/api` response carries. */
+export const API_HEADERS = Object.freeze({
+  'Content-Security-Policy': API_CSP,
+  'X-Content-Type-Options': 'nosniff',
+});
+
+/**
+ * Whether a request reaches an `/api` mount, by the router's own rule: the
+ * prefix compared without case and followed by the end, `/` or `.`. The router
+ * reads an absolute-form target's path without resolving dot segments, so the
+ * path is taken here the same way (scheme and authority dropped, backslashes as
+ * slashes), alongside the raw and the fully parsed path; any match counts.
+ */
+function isApiPath(url) {
+  const raw = String(url || '/');
+  const target = raw
+    .trim()
+    .split(/[?#]/, 1)[0]
+    .replace(/\\/g, '/')
+    .replace(/^[a-z][a-z0-9+.-]*:(?:\/\/[^/]*)?/i, '');
+  let parsed = '';
+  try {
+    parsed = new URL(raw, 'http://localhost').pathname;
+  } catch {
+    /* the unparsed paths still decide */
+  }
+  return [raw.split(/[?#]/, 1)[0], target, parsed].some((path) =>
+    /^\/api(?:$|[/.])/i.test(path),
+  );
+}
+
+/**
+ * Vite plugin that sets API_HEADERS on every API response before any other
+ * middleware runs, so success, error, partial, refused and unknown-route
+ * answers all carry them. Vite's `server.headers` and `preview.headers` only
+ * reach the documents and assets Vite serves itself. A route may still add
+ * headers; a route's own Content-Security-Policy is sent as an additional
+ * policy, which can only restrict further, never replace this one.
+ */
+export function apiResponseHeadersPlugin() {
+  const install = (server) => {
+    server.middlewares.use((req, res, next) => {
+      if (!isApiPath(req.url)) return next();
+      for (const [name, value] of Object.entries(API_HEADERS))
+        res.setHeader(name, value);
+      const setHeader = res.setHeader.bind(res);
+      res.setHeader = (name, value) =>
+        String(name).toLowerCase() === 'content-security-policy' &&
+        String(value) !== API_CSP
+          ? setHeader(name, `${API_CSP}, ${value}`)
+          : setHeader(name, value);
+      next();
+    });
+  };
+  return {
+    name: 'api-response-headers',
+    enforce: 'pre',
+    configureServer: install,
+    configurePreviewServer: install,
+  };
+}
+
 /** Build browser assets with explicit inputs; never load environment or providers. */
 export function createBrowserViteConfig({
   plugins = [],
@@ -61,7 +150,9 @@ export function createBrowserViteConfig({
 } = {}) {
   return {
     plugins: [
-      // First, so no provider route answers a Host the server does not allow.
+      // First, so every API response, including a Host refusal, carries them.
+      apiResponseHeadersPlugin(),
+      // Next, so no provider route answers a Host the server does not allow.
       hostCheckPlugin(),
       cesium(),
       applicationHtmlPlugin(),
@@ -94,7 +185,19 @@ export function createBrowserViteConfig({
       // build/allowedHosts.js); IP addresses are always accepted.
       allowedHosts: [...allowedHosts],
       fs: {
-        deny: ['.env', '.env.*', '*.{crt,pem}', '**/.git/**', '**/ENVIRONMENT'],
+        deny: [
+          '.env',
+          '.env.*',
+          '*.{crt,pem}',
+          '**/.git/**',
+          '**/ENVIRONMENT',
+          '**/.gev-logs/**',
+          '**/.gev-cache/**',
+          // Root-anchored: a bare '**/dist/**' would also deny every
+          // dependency's own dist/ (e.g. node_modules/vite/dist/client),
+          // breaking /@vite/client and other dev-client assets.
+          `${REPO_ROOT_GLOB}/dist/**`,
+        ],
       },
       // These headers protect the document containing Provider Settings and
       // give the whole page a real Content-Security-Policy (BROWSER_CSP).

changelog.d/1057-windows-npm-dep0190.md

@@ -1,4 +0,0 @@
-- On Windows, `npm run doctor` and the Pinokio install no longer print Node's
-  DEP0190 warning ("Passing args to a child process with shell option true can
-  lead to security vulnerabilities"): npm.cmd's fixed subcommand is now part of
-  the shell command string instead of an argument array (quanticsoul4772, #1057).

changelog.d/1071-geo-uri-search.md

@@ -1,3 +0,0 @@
-- Location search accepts two-dimensional WGS84 `geo:` URIs offline, with
-  the existing coordinate framing and label. Unsupported URI fields are passed
-  to the remaining search providers unchanged (cj-vana, #1071).

changelog.d/1094-dependency-security-patches.md

@@ -1,4 +0,0 @@
-- Update DOMPurify to 3.4.17, Sharp to 0.35.5 and source-map-js to 1.2.2 for
-  GHSA-p98j-92pf-mc4p, GHSA-6688-9rhm-gjv2, GHSA-wq5f-xc86-pv6w and
-  GHSA-68fv-2mgg-jv7q; `npm audit` now reports no vulnerabilities (NurstarK,
-  #1094).

changelog.d/1096-military-hold-track-speed.md

@@ -1,3 +0,0 @@
-- Military aircraft keep their last heading and speed when an adsb.lol row omits
-  `track` or `gs`, instead of turning north and stopping; a grounded row without
-  a speed still reads 0 (Aditya, @Rohilalala, #1096).

changelog.d/1097-overpass-remark-failure-phrases.md

@@ -1,5 +0,0 @@
-- Overpass data whose element tags contain a failure phrase ("timed out",
-  "runtime error", "too many requests" and similar, e.g. a place named "Timed
-  Out Escape Rooms") is returned as data instead of being refused and putting
-  the endpoint on cooldown; upstream failures are read from the remark (Aditya,
-  @Rohilalala, #1097).

changelog.d/1101-tle-catalog-number-match.md

@@ -1,3 +0,0 @@
-- Skip TLE sets whose line 1 and line 2 carry different catalog numbers, so a
-  spliced catalog cannot pair one satellite's elements with another's; the next
-  valid set still parses (VG31OP, #1101).

changelog.d/1111-map-fallback-retry.md

@@ -1,5 +0,0 @@
-- A failed Esri Satellite or keyless terrain load still shows OSM or flat terrain
-  at once, but no longer lasts the whole session: while the fallback is on
-  screen, the real provider is retried in the background (30 seconds, doubling
-  to a 10-minute cap) and replaces it live once it loads. Map switches never
-  wait for a retry (Aditya, @Rohilalala, #1111).

changelog.d/1115-aircraft-altitude-band-unknown.md

@@ -1,2 +0,0 @@
-- Exclude aircraft without a reported altitude from requested altitude bands;
-  unfiltered aircraft queries still retain them (rudycelekli, #1115).

changelog.d/1117-google-viewer-lifecycle.md

@@ -1,3 +0,0 @@
-- Release superseded Google Street View open waits and suppress metadata
-  requests whose viewer was unmounted while the service loaded (rudycelekli,
-  #1117).

changelog.d/1118-cctv-snapshot-fallback-provenance.md

@@ -1,3 +0,0 @@
-- Label camera-tool Street View fallbacks as historical Google imagery rather
-  than the current camera view; keep unknown frame provenance explicit
-  (rudycelekli, #1118).

changelog.d/1135-director-save-status-run-results.md

@@ -1,5 +0,0 @@
-- Scenes keep the "Scene not saved" status when a capture, update, append or
-  import cannot be saved, and an unreadable saved project no longer overwrites
-  the recovery checkpoint. `startScene()` resolves to its documented result,
-  `afterShotId` works without an explicit scene, and `scenesRun` counts the
-  distinct scenes queued (djabhi31, #1135).

changelog.d/1142-antimeridian-fire-perimeters.md

@@ -1,6 +0,0 @@
-- Fire-perimeter queries handle outlines and holes crossing the antimeridian:
-  areas enclosed near ±180° are included, areas at the opposite meridian are
-  excluded, and returned perimeter coordinates stay near the dateline. Incident
-  cards use the same circular longitude mean and compare multipart outline
-  areas along short longitude edges, keeping the card on the largest polygon
-  (Arianna Method, @ariannamethod, #1142).

changelog.d/1171-director-goto-shot.md

@@ -1,3 +0,0 @@
-- Director shot actions land on the requested shot. A seek to a shot's start
-  could round a hair below it and select the end of the previous shot for some
-  shot counts and durations (Aditya, @Rohilalala, #1171).

changelog.d/1172-cctv-missing-numbers.md

@@ -1,13 +0,0 @@
-- Keep missing CCTV numbers unknown instead of reading them as zero. `Number`
-  turns null, blank strings and booleans into 0 or 1, and the camera source
-  list sends an unknown number as JSON null, so a source-pack camera that left
-  out its pose reached the browser as zeros clamped to each field's floor —
-  facing north, pitch −2°, FOV 20°, range 120 m, mount 6 m and ground 0 m —
-  instead of the defaults (id-hash heading, −17°, 74°, 700 m, 24 m and the
-  city's ground); a null or blank position placed the camera at 0,0. The
-  server's `toFiniteNumber` and the browser's `safeNumber` now treat absent,
-  blank and boolean values as missing. The same conversion also stops a
-  Tallinn row with a null heading reading as a confident north-facing camera,
-  a Caltrans camera with a blank elevation losing its 150 m ground prior, and
-  a TfL or Catalonia camera with a null or blank coordinate being kept at 0,0
-  or on the zero meridian (omerbberk, #1172).

changelog.d/1173-antimeridian-ground-floor.md

@@ -1,10 +0,0 @@
-- Flights' ground floor works across the antimeridian. The viewer-distance
-  check behind the 150 km floor radius and its copy in the photoreal mesh-floor
-  sampler subtracted longitudes without wrapping, so two points 21 km apart
-  across 180° measured about 38,000 km and low or grounded aircraft just across
-  the line from the viewer were never floored. A contact's display corridor
-  walked a segment across 180° the long way round, spending its cell budget on
-  ground behind the contact, and a contact on the seam lost its cell hysteresis.
-  SEARCH NEARBY SITES on a view across 180° searched Google Places around
-  longitude 0, on the far side of the globe, with a radius sized from the view's
-  height alone; it now searches the view (Aditya, @Rohilalala, #1173).

changelog.d/1186-launch-unknown-coordinates.md

@@ -1,4 +0,0 @@
-- Keep missing launch-pad coordinates unknown so launches use the location
-  fallback or stay off the map instead of appearing at 0°N 0°E. Missing stage
-  flight numbers no longer show "FLIGHT 0"
-  (Rudy Celekli, @rudycelekli, #1186).

changelog.d/1190-bikeshare-spain-cities.md

@@ -1,6 +0,0 @@
-- Add nine Spanish city bike systems to Bike Share and `get_bike_share`: BiciMAD
-  (Madrid), Valenbisi (Valencia), Bizi Zaragoza, Sevici (Seville), BIKI
-  (Valladolid), BiciCoruña, Dbizi (Donostia-San Sebastián), Bilbao Bizi and
-  BicinRivas, about 1,840 stations. Station names read underscores as word
-  breaks, and station capacity counts docks rather than PBSC's geofenced area
-  (ulihhhh, #1190).

changelog.d/287-shared-great-circle-distance.md

@@ -1,5 +0,0 @@
-- The client's great-circle distances now come from one shared
-  `src/geoDistance.js` (`greatCircleKm`/`greatCircleMeters`, `{lat, lon}`
-  points). The Earth radius is standardized on 6371.0088 km, so distances shift
-  by about 1.4 ppm and region areas by about 2.8 ppm, and missing or
-  out-of-range points return `Infinity` (onionviolet, #287; Rajojha-1, #749).

changelog.d/761-dev-unwatched-runtime-dirs.md

@@ -1,5 +0,0 @@
-- The dev server no longer watches `.gev-cache` and `.gev-logs`. Providers write
-  cache files and logs there while the app runs, and none of it is source, so
-  the watcher now skips it; this guards against the DNS-lookup delays heavy
-  cache writes have caused, though no difference was measured on current main
-  (monwiss, #761).

changelog.d/767-alpha5-catalog-numbers.md

@@ -1,11 +0,0 @@
-- Read satellite catalog numbers written in Alpha-5, the TLE spelling of
-  numbers above 99999: a letter for the first two digits, skipping I and O
-  (`A0000` is 100000, `Z9999` is 339999). The satellites layer converted such a
-  field to `NaN`, so every Alpha-5 satellite shared one catalog entry and all
-  but the first were dropped as duplicates; the satellite tools read the same
-  field as no number, so such a satellite could not be found by it. The layer
-  and the tools now decode the field in `src/sources/tle.js`, and reject a
-  malformed one (a sign, decimal point, hex, embedded space or stray letter)
-  instead of reading part of it as a number. This is Alpha-5 TLE
-  compatibility: CelesTrak's TLE feed carries no satellite above 99999, which
-  needs the OMM feed (#1191) (Honorius Neogy, #767, fixes #751).

changelog.d/787-changelog-fragments.md

@@ -1,7 +0,0 @@
-- Changelog entries are now one file per pull request. A change adds
-  `changelog.d/<pull request>-<slug>.md` instead of editing the top of
-  `CHANGELOG.md`, which two pull requests in flight could not share — it was the
-  most frequent merge conflict in the open queue, and for six of them the only
-  one. `npm run changelog` splices the directory into `CHANGELOG.md` at release
-  time and empties it; `npm run changelog:check` reports the batch and changes
-  nothing. Fragment text is copied through unchanged (daikaginza, #787).

changelog.d/970-recent-imagery-details-scroll.md

@@ -1,3 +0,0 @@
-- Recent Imagery: opening DETAILS scrolls its card into view when it opens below
-  the fold. The panel used to restore the previous scroll position right after
-  the reveal, so the card stayed out of sight (Ian Blenke, #970).

changelog.d/973-tomtom-cross-site-gate.md

@@ -1,4 +0,0 @@
-- Cross-site browser requests can no longer spend the TomTom traffic-tile
-  budget through `/api/tomtom/*`. The shared same-site gate runs before status,
-  cache, and upstream work; same-origin app requests and non-browser local
-  callers remain supported (Sunil56224972, #973).

compose.yaml

@@ -5,6 +5,11 @@ services:
     # lands in the bind-mounted repo, so run as you, not root. UID/GID are
     # unset on Docker Desktop, where the 1000 fallback is ignored anyway.
     user: "${UID:-1000}:${GID:-1000}"
+    # Forward explicit shell/.env policy before the launcher discovers a gateway.
+    # Unset values stay unset so the default loopback-only install still works.
+    environment:
+      - GEV_KEY_SETUP_TRUSTED_PEERS
+      - GEV_ALLOWED_HOSTS
     ports:
       # Publish to loopback only. Docker's default ("4173:4173") would bind
       # every host interface, which quietly turns the LAN warning in the README
@@ -17,5 +22,8 @@ services:
       # UI land in the .env on your host instead of vanishing with the
       # container. node_modules stays in the image: sharp and friends are
       # compiled for Linux and must not be shadowed by a host install.
-      - .:/app
+      # `:z` relabels the checkout for containers on SELinux hosts (Fedora,
+      # RHEL); without it the container cannot read /app at all and Node
+      # reports the launcher as "Cannot find module". Elsewhere it is ignored.
+      - .:/app:z
       - /app/node_modules

docs/CODE-BOUNDARIES.md

@@ -79,17 +79,13 @@ moves it. Do not label all ingestion modules platform-independent by filename.
 
 | Retained entry                                      | Owner and current reason                                                                                           |
 | --------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
-| `src/ui.js`                                         | UI facade; direct callers retain standalone StyleManager defaults. Normal assembly uses `src/ui/composition.js`    |
 | `src/data/manager.js`                               | Lifecycle/panel compatibility and existing tests; normal assembly constructs lifecycle and presentation separately |
 | `src/data/<layer>.js`                               | Legacy default instances; new assembly calls layer factories with supplied sources                                 |
-| `src/data/localGeojson.js`                          | Infrastructure compatibility factories; catalog imports services from `src/app/localGeojsonServices.js` directly   |
-| `src/app/sourceSlot.js`                             | Re-export for direct callers/tests; portable slot ownership is `src/sources/sourceSlot.js`                         |
 | `src/app/sources.js`, `src/services/application.js` | Existing default/override API; current application construction supplies its own instances                         |
 | `server/providers/local.js`                         | Existing Node composition barrel and provider helper re-exports                                                    |
 
-The two exact standalone-import exceptions are `src/ui.js` to
-`src/standalone/catalog.js` and `server/providers/local.js` to
-`server/standalone/key-setup.js`. They do not authorize new compatibility
+The one exact standalone-import exception is `server/providers/local.js` to
+`server/standalone/key-setup.js`. It does not authorize new compatibility
 back-edges. Voice actions use plain `src/data/feedState.js`, not the manager
 facade. Settings filesystem hardening belongs in
 `server/standalone/key-setup-hardening.mjs`; its settings policy is unchanged.
@@ -237,7 +233,7 @@ DOM elements and callbacks; importing it creates no browser state. `destroy()`
 removes owned listeners and cancels pending work without changing saved state
 or moving focus. Call it before removing or replacing the controls.
 
-`src/ui.js` retains panel layout, persistence, share restoration and application
+`src/ui/applicationShell.js` retains panel layout, persistence, share restoration and application
 reactions to state changes. Map Source selection and Location draft cleanup are
 provided through callbacks. The component imports no globe, data, application
 or server modules. Package checks and scoped formatting cover this entry.
@@ -356,8 +352,8 @@ drag or final change. Feature adapters own data mapping and service subscription
 generic modules own DOM/listeners/timers and release them in `destroy()`.
 
 Keep persistence with panel chrome: collapse uses
-`godsEyeView.v6.panelCollapsed.<panelId>`, position uses
-`godsEyeView.v8.panelPos.<panelId>`, and share state uses the registered panel id.
+`godsEyeView.v6.panelCollapsed.<panelId>`, positions are
+not stored (`godsEyeView.v8.panelPos.<panelId>` stays reserved), and share state uses the registered panel id.
 Do not rename existing
 ids or reset persistence versions when adding a body. The WEATHER adapter is
 `src/ui/weatherPanel.js`; its observed-history selection remains transient.
@@ -374,6 +370,15 @@ renderer, persistence or services. The facade retains panel visibility, share
 restore claims and render scheduling. Both controls are destroyed before the
 facade's asynchronous teardown can yield.
 
+## Ordinary action buttons
+
+`src/ui/actionButton.js` is a native, listener-free view helper used by Scene
+presentation and sharing-toolbar owners. It receives translated text and explicit
+presentation/accessibility properties. Feature controllers own action dispatch,
+state, persistence and cleanup. Static Scenes/CCTV templates use the same CSS
+surface and preserve IDs and layout hooks. The helper imports no application,
+renderer, storage or services; it belongs to the consuming package closures.
+
 ## Display controls
 
 `ui/display` owns Display button, selector and slider subscriptions. It receives
@@ -461,8 +466,8 @@ release listeners; pending action feedback is limited to its current owner.
 ## UI assembly and styles
 
 `ui/shell` assembles controls from supplied existing layer, navigation, terrain,
-rendering, HUD and share operations. `src/standalone/ui.js` provides the running
-application's instances; `src/ui.js` remains the compatibility entry. The shell
+rendering, HUD and share operations. `src/standalone/controls.js` provides the running
+application's instances. The shell
 imports no standalone bootstrap or concrete live layer implementation.
 Panel layout, position/drag, notices, recording and deferred UI work have separate
 owners with synchronous cleanup. Existing scene, share and HUD engines retain
@@ -593,6 +598,10 @@ state subscriptions retain their existing event contract.
   tracking handoff. It reads Cockpit admission and uses supplied tracking operations.
 - `ui/share-restoration` owns the initial restore transaction, layer coordinator,
   status notices and gesture/timer cleanup.
+- `share/view-codec` is the share-link codec (`decodeShareView`,
+  `encodeShareView`). It is pure (no DOM, no Cesium), so a host's server can
+  read a `/share/<code>` link, for example to describe it in link previews.
+  `share/link-path` reads and builds the `/share/<code>` address itself.
 - `ui/visual-settings` owns style preferences, detection overrides, display inputs
   and IR cleanup. Its engine services and panel operations are explicit.
 - `ui/panel-chrome` owns disclosure, docking, collapse preferences and temporary
@@ -729,3 +738,32 @@ sources supply `{records, droppedCount, status, saturated}`; viewport filtering,
 exact-bound retry and rendering stay in the layer. Legacy cache saturation is
 decoded in the source. Source and geometry modules remain independent of Cesium,
 DOM and platform middleware.
+
+### Native form fields
+
+`src/ui/formField.js` constructs native numeric inputs without listeners or
+application state. Static selects and number inputs use the same `gev-field`
+surface, with explicit compact and inline densities. Feature owners retain
+option identity/order, bounds, parsing, draft values, input/change timing and
+teardown. CCTV effective-pose conversion and tuner/device operations remain
+feature responsibilities. A Vue replacement can reuse this contract and CSS;
+it replaces DOM construction, rather than adding a second state owner.
+
+The shared stylesheet owns field surfaces and disabled opacity; feature and theme
+palettes use `--gev-field-background`, `--gev-field-border-color`,
+`--gev-field-color` and `--gev-field-disabled-opacity`. Radio retains its own
+compact density and arrow space. CCTV owns calibration editor width in
+`cctv.css`; the shared inline density does not impose a feature-specific width.
+Cyber supplies a shared-field palette explicitly and keeps its legacy native
+field rules separate, so Radio's palette remains an intentional exception.
+
+### Read-only status badges
+
+`src/ui/statusBadge.js` constructs/updates ordinary badges without listeners,
+status inference or live-region policy. It consumes translated text and controlled
+visibility; appearance variants share CSS rather than mapping machine states to
+universal severity. CCTV owns frame/source and calibration rules and their data
+attributes, while Weather owns coverage labels. The keyed rail-card owner keeps
+node identity, header focus, disclosure and teardown. The shared adapter never
+creates another state store or announces all card updates. A Vue view can replace
+this adapter and retain these presentation inputs and styles.

docs/INFRASTRUCTURE-LAYERS.md

@@ -53,9 +53,8 @@ Cesium installation shared with its viewer; it must not bundle separate copies.
 `gods-eye-view/infrastructure/geojson` exports the lower-level
 `createLocalGeoJsonLayer(options, services)` and existing infrastructure overlay
 helpers. `gods-eye-view/infrastructure/lod` exports the existing LOD policy helpers.
-The standalone app's `src/data/localGeojson.js` keeps its original single-argument
-factory and supplies its existing functions. Other consumers should use the package
-exports, which do not import standalone application globals.
+Consumers use the package exports, which do not import standalone application
+globals.
 
 Dataset files and source/license notices remain under `src/data/local_data/`.
 Their input counts are 4,351 datacenter features and 704 dam features. Cesium may

docs/KNOWN-ISSUES.md

@@ -57,9 +57,8 @@ Related keys (current versions):
 - Panel collapsed state: `godsEyeView.v6.panelCollapsed.<panel-id>` — `'0'` open,
   `'1'` closed, absent means the panel's own default. A view opened from a share
   link ignores the stored value entirely.
-- Panel positions: `godsEyeView.v8.panelPos.<panel-id>` — written only for a
-  floating portable panel (CCTV, Street Level). Deleting it, or double-clicking
-  the panel header, docks the panel again.
+- Panel positions: `godsEyeView.v8.panelPos.<panel-id>` — the current layout
+  writes none.
 - CCTV calibration: `godsEyeView.cctv.calibration.v2`
 
 ---

docs/SHARE-LINK-FORMAT.md

@@ -0,0 +1,365 @@
+# Share-link format
+
+A share link restores a view: where the camera is, what it follows, the visual
+style, data layers and panel layout. There are two forms.
+
+- **Long form** — `#v=2&lat=30.2672&lon=-97.7431&…`. Parsed by
+  `src/sharelink.js`. The address bar follows the live view in this form, and
+  links already in the wild keep working; the long form is never removed.
+- **Short form** — `<app>/share/<code>`, where `<app>` is wherever the app is
+  served (an origin's root, or a base path) and `<code>` is encoded and
+  decoded by `src/share/viewCodec.js`, which is pure (no DOM, no Cesium) and
+  needs no server. Hosts import it as `@gods-eye-view/core/share/view-codec`
+  (a server can read a code to describe the view in a link preview). The share button makes this form. The same code opens on
+  any copy of the app. `src/share/shareLinkPath.js` reads and builds the
+  address, and `src/share/legacyShareState.js` converts between the long
+  form's parsed state and the code's state.
+
+The same view in both forms (a real session's link):
+
+| Form  | Characters        |
+| ----- | ----------------- |
+| Long  | 302 (the hash)    |
+| Short | 39 (the `<code>`) |
+
+For example, a camera-only place view is a 24-character code (31 with its
+created-at time).
+Following an aircraft is 42–50: 42 when the link is made from the app's own
+follow camera with the fix taken as the link is made, 44 with a fix four
+seconds older, and 50 after orbiting to another heading and pitch. A view in
+any other style that keeps the style's own look adds only the style (two
+bytes): the 42-character followed aircraft in Noir is 44.
+
+## Opening a short link
+
+At start-up the app reads `<code>` from an address whose path ends in
+`share/<code>` (a host can pass the code instead, as `initialShareCode` to
+`createApplicationControls`). A code that decodes runs the same restore as a
+long link; once the app next writes the address, `/share/<code>` is replaced
+by the app's own address and the long form, without a new history entry, so
+a reload follows the live view. A code that is rejected restores nothing: the
+app starts as usual and says the link can't be opened.
+
+A thing view turns on its entity's layer and follows the entity by id, using
+the same restore as a long link's followed flight or satellite (and its
+expiry windows); a vessel is selected once the vessel feed has it. Opening is
+best effort: until the entity is found, and if it is not found in time, the
+camera is where the link was made, looking at the entity's last-known fix,
+and the app says that the entity isn't reporting and when the fix was taken.
+The share button makes a thing view while the camera follows an aircraft,
+military aircraft or satellite. A selected vessel is not followed (the camera
+stays where the user puts it), so a link made then is a place view; vessel
+thing views open, but the app does not make them yet.
+
+## Payload
+
+The code is unpadded base64url (`A–Z a–z 0–9 - _`). The decoded bytes are:
+
+1. one **version byte**, currently `1`;
+2. a sequence of **fields**, each a varint tag `field_number << 3 | wire_type`
+   followed by its value;
+3. one **check byte**: the CRC-8 of everything before it.
+
+| Wire type | Value                                                       |
+| --------- | ----------------------------------------------------------- |
+| 0 varint  | unsigned LEB128, at most 8 bytes, at most 2^53 − 1          |
+| 1 fixed64 | 8 bytes (not used by v1; skipped)                           |
+| 2 LEN     | varint length, then that many bytes (text or a sub-message) |
+| 5 fixed32 | 4 bytes (not used by v1; skipped)                           |
+
+Signed values are zigzag varints (0, −1, 1, −2 → 0, 1, 2, 3). Text is printable
+ASCII. Fields are written in ascending order; the decoder accepts any order.
+
+A field whose value equals its default is **omitted**. The decoder fills every
+omitted field from the same defaults table the encoder reads (for a
+style-dependent field, the decoded style's defaults), so an empty
+payload (code `AQc`: the version byte and its check byte) is the all-default
+view.
+
+### Check byte
+
+The check byte is CRC-8 with polynomial x⁸ + x² + x + 1 (`0x07`), initial
+value 0, no reflection and no final XOR (CRC-8/SMBUS; the check value of the
+ASCII digits `123456789` is `0xF4`). A decoder that computes a different value
+rejects the code (`checksum`) before reading any field, so a mistyped code
+never opens a different view. A degree-8 CRC catches every error burst of up
+to 8 bits; one base64url character is 6 bits, so **every single-character
+typo is rejected** (a test tries every substitution at every position). Two
+swapped neighbours, a dropped or an extra character are caught with a
+probability of about 255 in 256 (many of them already fail as base64url).
+
+## Field registry (top level)
+
+| #   | State key                    | Type  | Default     | Encoding                                                |
+| --- | ---------------------------- | ----- | ----------- | ------------------------------------------------------- |
+| 1   | `view.kind`                  | enum  | see below   | 0 place, 1 thing                                        |
+| 2   | `lat`                        | coord | 0           | zigzag of degrees × 10⁴                                 |
+| 3   | `lon`                        | coord | 0           | zigzag of degrees × 10⁴                                 |
+| 4   | `alt`                        | sint  | 800         | whole metres                                            |
+| 5   | `heading`                    | angle | 0           | whole degrees, see angles                               |
+| 6   | `pitch`                      | sint  | −35         | whole degrees                                           |
+| 7   | `roll`                       | angle | 0           | whole degrees                                           |
+| 8   | `sharedAtMs`                 | epoch | none        | zigzag seconds since 2026-01-01T00:00:00Z               |
+| 9   | booleans                     | flags | 0           | bit set when the value differs from default             |
+| 10  | `layerState.enabledLayerIds` | LEN   | none        | layer bitset, see layers                                |
+| 11  | `layerState.options`         | LEN   | none        | packed option triples, see layers                       |
+| 12  | `panelState`                 | LEN   | none        | packed panel entries, see panels                        |
+| 13  | thing                        | LEN   | none        | sub-message, see thing views                            |
+| 14  | `style`                      | enum  | `normal`    | normal, retro, surveillance, thermal, anime, noir, snow |
+| 15  | `mapStack`                   | enum  | `photoreal` | photoreal, bing-aerial, bing-labels, esri-imagery, osm  |
+| 16  | `hudVariant`                 | enum  | style       | tactical, operator, minimal, cyber                      |
+| 17  | `bloomIntensity`             | uint  | style       |                                                         |
+| 18  | `bloomVersion`               | uint  | 2           |                                                         |
+| 19  | `sharpenIntensity`           | uint  | style       |                                                         |
+| 20  | `detectionMode`              | enum  | style       | OFF, SPARSE, BALANCED, DENSE                            |
+| 21  | `detectionDensity`           | uint  | style       | one of 0, 25, 50, 75, 100                               |
+| 22  | `detectionAllocation`        | enum  | style       | ELASTIC, WEIGHTED                                       |
+| 23  | `detectionFadePct`           | uint  | style       | 0–40                                                    |
+| 24  | `detectionOutsideOpacityPct` | uint  | style       | 0–100                                                   |
+| 25  | `scopeFeatherPct`            | uint  | 100         | 0–200                                                   |
+| 26  | `scopeTerminusPct`           | uint  | none        | 94–100; absent is the adaptive terminus                 |
+| 27  | `styleParams`                | LEN   | style       | packed `(token, value × 100)` pairs                     |
+
+Field 1 absent means `thing` when field 13 is present and `place` otherwise,
+so v1 never writes it; a later view kind writes its code.
+
+Enum codes are the list position (0, 1, 2…). A name not in the list is written
+as LEN text in the same field, so the app can add a style or map before this
+table learns its code. A new style's settings are encoded against its own
+defaults, while a decoder that does not know the style uses Normal's; adding a
+style also extends the pinned style-defaults table.
+
+Flag bits (field 9): 0 `bloom`, 1 `sharpen`, 2 `hudVisible`, 3
+`celestialRing` (each defaulting by style), 4 `scopeEnabled` (default on).
+
+### Style defaults
+
+A default marked **style** is what the view's style applies when it is
+selected in a fresh session (`SHARE_VIEW_STYLE_DEFAULTS`): the app's
+first-load baseline (`GLOBAL_POST_DEFAULTS` in `src/ui/visualPresets.js`),
+with the style's preset on top (`STYLE_PRESET_DEFAULTS`), and the style's
+shader parameters at the preset's values, else the shader's own. The encoder
+compares against the defaults of the view's style, and the decoder fills
+omitted settings from the defaults of the style it decoded (an unknown style
+uses Normal's). So a view that keeps its style's look costs its camera and
+style alone. (A recipient-side preference the app remembers, such as the
+detection allocation, is not a style default: a sender who changed it pays
+for it.) In v1:
+
+| Setting                   | Every style   |
+| ------------------------- | ------------- |
+| bloom, intensity          | off, 0        |
+| sharpen, intensity        | on, 49        |
+| HUD visible, variant      | on, tactical  |
+| detection mode, density   | DENSE, 75     |
+| allocation, fade, outside | ELASTIC, 7, 1 |
+| celestial ring            | off           |
+
+| Style        | Shader parameters (field 27 defaults)                           |
+| ------------ | --------------------------------------------------------------- |
+| normal       | none                                                            |
+| retro        | pixelation 1, distortion 0, instability 0.42                    |
+| surveillance | gain 0.18, bloom 0.22, scanlineStr 0.96, pixelation 1           |
+| thermal      | sensitivity 0.85, bloom 0.2, mode 0.33, pixelation 1, palette 0 |
+| anime        | saturation 1, edgeThick 0.5                                     |
+| noir         | contrastAmt 1.2, grainAmt 0.5, vignetteAmt 0.5                  |
+| snow         | density 0.6, wind 0.5                                           |
+
+These are frozen like every other default: the codec reads them from the
+app's tables today, and a test pins them, so if a table moves the old values
+are frozen in the codec rather than changing what shared links mean.
+
+### Precision
+
+| Value                       | Stored as                 | Matches the long form |
+| --------------------------- | ------------------------- | --------------------- |
+| Latitude, longitude         | 10⁻⁴ degree (about 11 m)  | `toFixed(4)`          |
+| Altitude, range             | whole metres              | `Math.round`          |
+| Heading, pitch, roll        | whole degrees             | `Math.round`          |
+| Intensities and percentages | integers                  | `Math.round`          |
+| Style parameters            | hundredths after clamping | `sp` (× 100)          |
+| Created-at and observed-at  | whole seconds             | `at`                  |
+
+Angles: heading and roll are normalized into [0, 360) — the long form can
+write `roll=360` for a camera at 359.6°, which the compact form stores as 0 —
+and written as the nearer signed turn, so 350° costs one byte (−10).
+When a state is encoded, out-of-range input is clamped (latitude, pitch) or
+wrapped (longitude). A payload that stores a latitude or longitude beyond
+±90/±180 cannot come from the encoder and is rejected.
+
+### Layers (fields 10 and 11)
+
+A layer's number is derived from its permanent layer-state token
+(`src/data/layerStateTokenReservations.json`): a one-character token is its
+index in `0–9a–z`, a two-character token is 36 + first × 36 + second. The
+token ledger never reassigns a token, so layer numbers never change and new
+layers need no change here.
+
+Field 10 is a bitset: bit _n_ of byte ⌊n/8⌋ (least significant first) is set
+when layer _n_ is on. Present-but-empty means "every layer off"; an absent
+field leaves the recipient's layers alone (the long form's `l=` versus no `l`).
+A thing view's entity layer is always on, so its bit is not written: in a
+thing view, present-but-empty means "only the entity's layer", and an absent
+field opens with only the entity's layer on (the app writes the field
+whenever it has a layer set).
+
+Field 11 repeats `(layer number, option key, value)` for each option that
+differs from its frozen absent meaning (`SHARE_VIEW_LAYER_OPTION_ABSENT`). The
+option key is `option token index × 2 + kind`: kind 0 means the value is a
+zigzag varint (an option whose long-form spelling is a canonical integer),
+kind 1 means a varint length and ASCII text (the long-form spelling). Values
+are decoded by the layer-state codec's own option decoders.
+
+A followed aircraft, military aircraft or satellite is a thing view in the
+compact form, not a tracking option: the encoder moves it out of the layer
+options, and the converter moves it back for the long form.
+
+### Panels (field 12)
+
+Each entry is one varint: `panel number × 16 + collapsed × 4 + pinned`, where
+collapsed and pinned are 0 (no value), 1 (false) or 2 (true). Only panels that
+differ from the frozen default layout are written, plus a collapsed-0 entry
+for each panel the state has no opinion about (an older long-form link that
+predates the panel); a panel with no entry takes its default. Values of 3 are
+reserved: a decoder ignores that entry, as for collapsed 0.
+
+| #   | Panel                  | Long-form token | Default             |
+| --- | ---------------------- | --------------- | ------------------- |
+| 0   | `control-panel`        | `c`             | collapsed, unpinned |
+| 1   | `location-bar`         | `l`             | collapsed, unpinned |
+| 2   | `data-panel`           | `d`             | collapsed           |
+| 3   | `cctv-panel`           | `v`             | collapsed           |
+| 4   | `recent-imagery-panel` | `i`             | expanded            |
+| 5   | `street-level-panel`   | `t`             | collapsed           |
+| 6   | `radio-panel`          | `r`             | collapsed           |
+| 7   | `scene-panel`          | `s`             | collapsed           |
+| 8   | `global-context-panel` | `g`             | collapsed           |
+| 9   | `pp-toggles`           | `p`             | collapsed           |
+| 10  | `param-slider-panel`   | `m`             | expanded            |
+
+### Style parameters (field 27)
+
+Pairs of varints `(token index, value × 100)` for the parameters of the
+view's style that differ from its defaults, using the long form's `sp` tokens
+(`SHARE_VIEW_STYLE_PARAMS`). The decoded state always lists every parameter
+of the style: the stored ones over the style's defaults. A long link without
+`sp` converts to the style's defaults.
+
+## View kinds
+
+A **place** view (field 13 absent) opens at its camera, fields 2–7.
+
+A **thing** view (field 13 present) follows an entity. Field 13 is a
+sub-message:
+
+| #   | Field       | Encoding                                                 | Default |
+| --- | ----------- | -------------------------------------------------------- | ------- |
+| 1   | aircraft    | entity id: varint (24-bit ICAO address) or LEN text      |         |
+| 2   | military    | entity id: varint (24-bit ICAO address) or LEN text      |         |
+| 3   | vessel      | entity id: varint (MMSI) or LEN text                     |         |
+| 4   | satellite   | entity id: varint (NORAD catalog number) or LEN text     |         |
+| 5   | range       | uint metres from the entity to the camera                | 2000    |
+| 6   | heading     | angle, the camera's heading while following              | 0       |
+| 7   | pitch       | sint whole degrees, the camera's pitch while following   | −35     |
+| 8   | fix lat     | coord, the entity's last-known latitude                  | none    |
+| 9   | fix lon     | coord, its last-known longitude                          | none    |
+| 10  | fix alt     | sint metres                                              | 0       |
+| 11  | fix age     | sint seconds the fix predates the created-at time        | 0       |
+| 12  | observed-at | epoch, when the fix was taken; only without a created-at | none    |
+
+The entity kind is the field that carries the id (its code in
+`SHARE_VIEW_ENTITY_KINDS`), so it costs nothing; exactly one of fields 1–4 is
+present (two is malformed). Entity ids are the ones the layers look up: an
+aircraft's ICAO 24-bit address (six hex digits, stored as a number; other
+forms such as TIS-B `~abc123` as text), a vessel's MMSI and a satellite's
+NORAD catalog number (decimal numbers; an MMSI with a leading zero stays
+text). Ids are lowercase and match `[0-9a-z~_-]{1,16}`.
+
+Fields 5–7 are the follow offset: the camera looks along (heading, pitch) at
+the entity from `range` metres away, heading clockwise from north, in the
+entity's local east-north-up frame. The defaults match the app's own follow
+camera, which looks north at about −35°, so only its range is written.
+
+Fields 8–12 are the last-known fix, the entity's position when the link was
+made. Fields 8 and 9 are both written whenever there is a fix; their presence
+marks it. Its time is the created-at time (field 8 at the top level) minus
+field 11, or field 12 when the view has no created-at time.
+
+**The camera of a thing view with a fix is derived, not stored**: fields 2–7
+are not written, and the camera is where following the fix from the offset
+puts it (`followCameraFor` in `src/share/follow.js`): the camera sits
+`−r·cos p·sin h`, `−r·cos p·cos h` and `−r·sin p` metres east, north and up
+of the fix (heading h, pitch p, range r), on a sphere of radius 6 371 000 m,
+and looks back at the fix (its heading and pitch are those of that direction
+at the camera, roll 0; at follow distances they equal h and p). A
+decoder ignores fields 2–7 when the fix is present. A thing view without a
+fix (one converted from a long link, which records neither offset nor fix)
+writes its camera in fields 2–7 like a place view.
+
+A decoder that meets a view kind or an entity kind it does not know (an id in
+a thing field it skips) opens the view as a place at its camera — the derived
+one when there is a fix — and reports `fallback`.
+
+## Decoding rules
+
+`decodeShareView(code)` takes the bare code and never throws. It returns
+`{ ok: true, state, unknownFields?, fallback? }` or `{ ok: false, reason }`.
+
+Rejected (the whole link): input over 2048 characters, bad base64url
+(padding, foreign characters, impossible length, stray bits), fewer than two
+bytes, a check byte that does not match (`checksum`), an unknown version byte,
+a truncated value, a varint over 8 bytes or above 2⁵³ − 1, an
+overlong varint, a LEN longer than what remains (at any level, including
+inside the thing sub-message), a reserved wire type, field number 0, a known
+field with the wrong wire type or repeated, two entity ids in one thing, a
+duplicate panel/option/style entry, non-ASCII text, and a latitude or
+longitude (camera or fix) beyond ±90/±180.
+
+Tolerated and reported in `unknownFields`: unknown fields at any level
+(skipped by wire type), unknown enum codes and names (the default is used),
+unknown flag bits, layers, panel values and style parameters, and layer
+options the layer-state codec rejects or that are filed under a layer other
+than their owner. Detection mode and allocation names outside their lists
+fall back to the default rather than reaching the long form's lenient
+migration. The map stack and HUD variant are open: a name outside their lists
+that matches `[A-Za-z0-9_-]{1,32}` is kept as written (the app decides what
+it means) and is not reported; only a name outside that grammar is. A
+created-at time in the future is dropped, as the long form's `at` is.
+
+## Changing the format
+
+These rules keep every link that was ever shared working, in every version of
+the app that can open it.
+
+1. **Field numbers are permanent.** Never renumber, never reuse. A field that
+   is no longer written stays in `SHARE_VIEW_FIELDS` marked `retired: true`.
+2. **A field's type and wire type are permanent.** To change one, add a new
+   field.
+3. **Defaults are frozen meanings.** A default is what an omitted field meant
+   when links were written. If the app's default moves, leave the table alone:
+   the encoder will start writing the new value explicitly. Style defaults
+   are read from the app's style tables; when those move, freeze the old
+   values in the codec (see Style defaults). The same applies
+   to `SHARE_VIEW_LAYER_OPTION_ABSENT` and the panel defaults.
+4. **Codes are append-only.** Enum lists, entity kinds, flag bits, panel
+   numbers and style parameter tokens only grow.
+5. **Add, don't change.** A new setting takes the next free field number
+   (28 onwards; fields 1–15 have one-byte tags and are all taken). A new
+   boolean takes the next flag bit instead, which costs nothing when it is at
+   its default.
+6. **New view kinds and entity kinds** get the next code. A new entity kind's
+   id takes the next free thing field (13 onwards), so older apps skip it and
+   fall back to the camera. A thing that needs more than an id (for example a
+   CCTV camera, a radio station or a transit vehicle) adds further thing
+   fields the same way.
+7. **A new layer option** needs an entry in `SHARE_VIEW_LAYER_OPTION_ABSENT`
+   (a test fails until it has one).
+8. **Bump the version byte only** for a change older decoders must refuse.
+   Decoders reject any version they do not know. The trailing CRC-8 check
+   byte belongs to every version.
+9. **Derivations are frozen too.** `followCameraFor` and the follow-offset
+   defaults are part of the format: changing them moves the camera of every
+   thing link already shared.
+
+Add a test for every change: a round trip, and a payload written with the new
+field that the previous decoder still reads.

docs/TOOLS.md

@@ -263,11 +263,11 @@ and the development server's internal routes. See SECURITY.md.
 | `get_earthquakes`     | `earthquakes` | USGS M2.5+ events in the last 24 hours, strongest first        |
 | `get_active_fires`    | `fires`       | NASA FIRMS detections in an area, highest radiative power first |
 | `get_recent_launches` | `launches`    | Launch Library 2 launches in the last 30 days, newest first    |
-| `aircraft_in_area`    | `aircraft`    | Aircraft in an area, nearest first; `military: true` reads the `military` feed |
+| `aircraft_in_area`    | `aircraft`    | Aircraft in an area, nearest first; `military: true` reads the `military` feed; `group_by` and `stats` count and summarize every match |
 | `find_aircraft`       | `aircraft`    | Aircraft anywhere by callsign, ICAO address or registration    |
 | `get_aircraft_track`  | `aircraft`    | Recent positions of one aircraft, thinned to 200 points        |
 | `get_aircraft_info`   | `aircraft`    | Aircraft type and registration, and flight route, from adsbdb  |
-| `vessels_in_area` | `vessels` | Ships reported by AIS in an area, nearest first, optionally by type |
+| `vessels_in_area` | `vessels` | Ships reported by AIS in an area, nearest first, optionally by type; `group_by` and `stats` count and summarize every match |
 | `find_vessel` | `vessels` | Ships anywhere by MMSI, IMO number or name |
 | `get_vessel_track` | `vessels` | Recent positions of one ship, thinned to 200 points |
 | `next_satellite_pass` | `satellites` | Next pass over a place or point (default the ISS), with naked-eye visibility |

docs/TRANSLATORS.md

@@ -1,6 +1,6 @@
 # Translating God's Eye View
 
-Shipped languages: **English** (source and fallback), **Spanish** (`es`) and **Russian** (`ru`).
+Shipped languages: **English** (source and fallback), **Spanish** (`es`), **Russian** (`ru`) and **Simplified Chinese** (`zh-CN`).
 
 ## How it works
 
@@ -63,4 +63,4 @@ These are contracts, not copy: layer ids and registry keys, status enums and oth
 
 ## Language notes
 
-Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Spanish](./translations/es.md), [Russian](./translations/ru.md). Read it before translating, and add a term there when you settle on one.
+Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Spanish](./translations/es.md), [Russian](./translations/ru.md), [Simplified Chinese](./translations/zh-CN.md). Read it before translating, and add a term there when you settle on one.

docs/opensky-auth.md

@@ -3,10 +3,11 @@
 God's Eye View uses explicit auth modes for `/api/flights`:
 
 - `OPENSKY_AUTH_MODE=oauth` (default, recommended)
-- `OPENSKY_AUTH_MODE=auto` (OAuth first, then Basic fallback)
-- `OPENSKY_AUTH_MODE=basic`
+- `OPENSKY_AUTH_MODE=auto` (OAuth when configured, otherwise anonymous)
 - `OPENSKY_AUTH_MODE=anon`
 
+`OPENSKY_AUTH_MODE=basic` is retired (see below).
+
 Reference: OpenSky REST API docs recommend OAuth2 Client Credentials flow.
 
 ## Quick Start (OAuth Client JSON)
@@ -41,13 +42,18 @@ Launchers resolve OAuth creds in this order:
 2. `OPENSKY_CREDENTIALS_FILE`
 3. Keychain (`opensky-network` / `client_id`, `client_secret`)
 
-## Basic Auth (Legacy)
+The server itself reads 1 and 2, so `npm run dev`, `npm run preview` and
+Pinokio also work with only `OPENSKY_CREDENTIALS_FILE` set in `.env`, on any
+platform. It reads the file on each token refresh.
 
-Basic auth is still supported for now, but OpenSky is moving away from it.
+## Basic Auth (Retired)
 
-```bash
-OPENSKY_AUTH_MODE=basic ./scripts/dev-fresh.sh
-```
+OpenSky stopped accepting username/password (HTTP Basic) sign-in on
+2026-03-18; its API now takes only OAuth2 client credentials. With
+`OPENSKY_AUTH_MODE=basic` the server no longer sends `OPENSKY_USERNAME` /
+`OPENSKY_PASSWORD`: it requests anonymously (reason `basic_retired`) and
+logs once what to set instead. Create an API client on your OpenSky
+account page and use its `credentials.json` as above.
 
 ## Troubleshooting
 
@@ -61,6 +67,6 @@ Useful reasons:
 
 - `oauth_invalid_or_missing`: OAuth client not found/usable
 - `oauth_invalid_credentials`: OAuth client rejected by OpenSky
-- `basic_invalid_credentials`: username/password rejected
-- `missing_basic_creds`: basic mode missing user/pass
+- `missing_oauth_creds`: auto mode found no OAuth client
+- `basic_retired`: basic mode requested; answered anonymously
 - `rate_limited`: OpenSky throttling

docs/translations/zh-CN.md

@@ -0,0 +1,77 @@
+# Simplified Chinese (`zh-CN`)
+
+Catalog: `src/i18n/locales/zh-CN.json`. General rules: [TRANSLATORS.md](../TRANSLATORS.md).
+
+Translation sources: abiyeenzo (#914) and EDIT-Aeterna (#979).
+
+## Style
+
+- Mainland usage and Simplified characters. Address the user neutrally, without 您/你 where a plain imperative works: 「点击地图」, 「重试」.
+- Chinese has no case: an UPPERCASE English HUD label becomes the same short Chinese label. Keep labels as short as the English: 「实时」, 「过期」, 「关」.
+- Full-width punctuation in Chinese text: ，。：；？！（）“”. A dash is 「——」 without spaces; keep `·` as the HUD separator and `…` for ellipsis.
+- One space between Chinese and Latin letters or digits: 「AIS 船舶」, 「24 小时」, 「{count} 个」. No space next to full-width punctuation.
+- Units: km, m, km/h, m/s, kn, ft, MW, °, % stay as written; time words are 小时, 分钟, 秒 after a number (「5 分钟前」).
+- Product names, provider names and codes stay as they are: Google, Cesium, CelesTrak, NOAA, FIRMS, AIS, ADS-B, GNSS, CCTV, HUD, CRT, NVG, FLIR, WHOT/BHOT, Ironbow, CONUS.
+
+## Plurals
+
+`Intl.PluralRules('zh-CN')` has one category, `other`: a `tn()` entry has only that form. Use a measure word next to the number where Chinese needs one: 「{count} 个密钥」, 「{count} 架飞机」, 「{count} 艘船」.
+
+## Glossary
+
+| English                               | 中文                        |
+| ------------------------------------- | --------------------------- |
+| layer / data layer                    | 图层 / 数据图层             |
+| feed                                  | 数据源                      |
+| source / data source                  | 来源 / 数据源               |
+| LIVE (status) / live data             | 实时 / 实时数据             |
+| SIMULATED                             | 模拟                        |
+| stale / degraded / unavailable        | 过期 / 降级 / 不可用        |
+| retry                                 | 重试                        |
+| key (API key) / POWER UP              | 密钥（API 密钥）/ 增强      |
+| Provider Settings                     | 服务商设置                  |
+| globe / map / map source / basemap    | 地球 / 地图 / 地图源 / 底图 |
+| aircraft / flight / military flights  | 飞机 / 航班 / 军用航班      |
+| vessel, ship                          | 船舶                        |
+| satellite                             | 卫星                        |
+| launch (rocket) / space mission       | 发射 / 太空任务             |
+| contact (tracked object)              | 目标                        |
+| installation, site                    | 设施                        |
+| camera / CCTV camera                  | 摄像头 / CCTV 摄像头        |
+| earthquake / active fire              | 地震 / 活跃火点             |
+| scene / shot                          | 场景 / 镜头                 |
+| briefing / panel / dock               | 简报 / 面板 / 停靠栏        |
+| preset / visual preset                | 预设 / 视觉预设             |
+| Display / HUD layout                  | 显示 / HUD 布局             |
+| Tactical / Operator / Minimal / Cyber | 战术 / 操作员 / 精简 / 赛博 |
+| Scope (circular viewport mask) / keyhole | 视域                      |
+| Clean UI                              | 纯净界面                    |
+| cockpit                               | 座舱                        |
+| heading / altitude / ground speed     | 航向 / 高度 / 地速          |
+| map heading / North up                | 方位 / 正北朝上             |
+| Street Level / Street View (Google)   | 街景 / 街景（Google）       |
+| Recent Imagery                        | 近期影像                    |
+| Global Context / Context (panel)      | 全局态势 / 态势             |
+| radio (station)                       | 电台                        |
+| transit / bikeshare                   | 公共交通 / 共享单车         |
+| Previous / Next                       | 上一个 / 下一个             |
+| compass points (N, NNE, …)            | 北, 北东北, …               |
+| weather field / FIELD (selector)       | 气象场 / 要素               |
+| weather model / forecast lead hours   | 模式 / 预报时效             |
+| valid (forecast time)                 | 有效时间                    |
+| scene cloud / mosaic                  | 整景云量 / 镶嵌图           |
+| pin (Recent Imagery)                  | 固定                        |
+| THIS (voice pointer)                  | 所指                        |
+| outline / trace an outline            | 轮廓 / 绘制轮廓             |
+| mark (map annotation)                 | 标注                        |
+| camera badge                          | 摄像头标记                  |
+| provider / embedded provider controls | 服务商 / 平台控件           |
+| share (a view or link)                | 分享                        |
+| AI agent                              | AI 智能体                   |
+| stage (rocket) / downrange            | 子级 / 航程                 |
+| capture shot / camera move            | 保存镜头 / 运镜             |
+| story beat / evidence beat            | 事件节点 / 证据节点         |
+| camera pose                           | 位姿                        |
+| forecast uncertainty cone             | 预报不确定范围              |
+| seed (catalog data)                    | 预置                        |
+| frame (bring into view)               | 将…纳入视野                 |

index.html

@@ -26,7 +26,7 @@
        with the sources: src/materialSymbolsSubset.test.mjs fails when a source
        names a glyph this list is missing, because a missing glyph does not draw
        a box — the ligature never forms and the element renders the literal word. -->
-  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,layers_clear,light_mode,local_fire_department,my_location,navigation,normal,on,open_in_full,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,skip_next,skip_previous,upload_file,view_in_ar,visibility,visibility_off" rel="stylesheet" />
+  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,layers,layers_clear,light_mode,local_fire_department,more_horiz,my_location,navigation,normal,on,open_in_full,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,search,settings,skip_next,skip_previous,upload_file,videocam,view_in_ar,visibility,visibility_off" rel="stylesheet" />
 </head>
 <body>
   <!-- gev:template scene-chrome -->

intro-sequence/.gitignore

@@ -1,22 +0,0 @@
-# Fetched snapshots and renders are regenerated by tools/; imagery and camera
-# stills carry third-party terms and are not redistributed with the repo.
-node_modules/
-/out/
-data/*.json
-data/*.txt
-!data/SOURCES.md
-/imagery/
-/cctv/
-audio/*.wav
-tools/imagery/cache/
-__pycache__/
-
-# fetch caches
-tools/*/cache/
-# city snapshots (Esri imagery, live feeds) and review/model artefacts
-/city/
-tools/flurry/review/
-tools/flurry/*.jpg
-tools/live/models/
-tools/live/*.jpg
-tools/*/check*.png

intro-sequence/README.md

@@ -1,58 +0,0 @@
-# God's Eye View — First Light
-
-The intro sequence: God's Eye View coming online for the first time. A seed of
-light on Null Island grows into a culture that turns out to be drawing the
-planet. It then indexes the surface tile by tile, ingests every public feed,
-and outgrows the dish it was grown in.
-
-Every number on screen comes from a real snapshot: 5,550 aircraft from OpenSky,
-15,928 satellites from CelesTrak, 246,411 fire detections from FIRMS, 10,120
-quakes from USGS, GFS wind, 1,948 subsea cable segments, AIS from Kystverket and
-Digitraffic, and 117 real public camera frames. Those cameras come from a
-catalog of 16,607 across 18 keyless agencies. The imagery is Esri World Imagery
-and NASA GIBS, fetched keyless. The score is synthesised from scratch and
-frame-locked to the same clock as the picture.
-
-## Acts
-
-| Time | Act | What happens |
-|---|---|---|
-| 0–5 s | Void | Boot console types, then implodes into a point |
-| 5–16 s | Seed / culture | Heartbeat, petri-dish ring. Mycelium grows out from 0°N 0°E; real night lights and coastlines light up as the front passes; the culture learns city names |
-| 16–30 s | Indexing | Quadtree tiles z3→z5 index in with rising resolution; the sun model is applied; 24 synthetic Esri captures ("enhance" z13→z18); full-frame Sobel feature extraction over Midtown |
-| 30–52 s | Ingestion | Aircraft, vessels, military, satellites, quakes, fires, wind and cloud, subsea cables, public cameras. Each feed has its own visual and sonic signature. Ends on the camera wall |
-| 52–60 s | Saturation | Every layer at once, data arcs, the digital-twin lattice, and the dish ring's return; containment falls, the ring shatters, OMNIPRESENT |
-| 61–72 s | Resolve | The planet becomes the iris of the logo. GOD'S EYE VIEW · NO PLACE LEFT BEHIND · ONLINE |
-
-## Rebuild
-
-```sh
-npm install                                # three, playwright-core, satellite.js, fonts
-python3 -m http.server 8765 --bind 127.0.0.1 &
-# data + imagery snapshots (see data/SOURCES.md)
-bash tools/fetch/fetch_basic.sh            # plus the other scripts in tools/fetch, tools/imagery
-node tools/export-cues.mjs                 # film clock -> audio/cues.json
-tools/render-all.sh 1920 1080 16x9         # deterministic frames -> out/video_16x9.mp4
-tools/render-all.sh 1080 1920 9x16
-tools/finalize.sh                          # score, -14 LUFS, mux -> out/final/
-```
-
-Single stills for review:
-`node tools/render.mjs --w 1920 --h 1080 --frames 12s,30s,58.4s --out out/stills`
-
-## Real-time / loading screen
-
-`index.html?play` runs the same frames live in a GPU browser, driven by the audio
-clock (the first click starts the sound). `?w=1080&h=1920&play` gives the
-vertical cut.
-
-## Layout
-
-- `src/timeline.js`: the clock. Every visual and audio event keys off it.
-- `src/main.js`: asset loading, camera choreography, per-frame state.
-- `src/globe.js`: planet shader (substrate → growth → quadtree indexing → lit Earth), clouds, atmosphere.
-- `src/lines.js`: coastline and mycelium growth fronts, cables, arcs, twin lattice.
-- `src/layers.js`: aircraft, vessels, satellites, quakes, fires, wind particles, stars.
-- `src/hud.js`: all typography and 2D: boot console, dish, captures, feed stack, camera wall, title.
-- `src/post.js`: HDR composite, dual-filter bloom, lens, grain, glitch.
-- `audio/score.py`: procedural score and sound design.

intro-sequence/audio/score.py

@@ -1,679 +0,0 @@
-#!/usr/bin/env python3
-"""God's Eye View — First Light: procedural score and sound design.
-
-Everything here is synthesised from scratch (no samples) and placed against
-audio/cues.json, which tools/export-cues.mjs exports from src/timeline.js, so
-every hit lands on its frame.
-
-    python3 audio/score.py            -> audio/score.wav (48 kHz, 24-bit stereo)
-"""
-import json
-import os
-import numpy as np
-from scipy import signal
-from scipy.io import wavfile
-
-SR = 48000
-HERE = os.path.dirname(os.path.abspath(__file__))
-C = json.load(open(os.path.join(HERE, 'cues.json')))
-T = C['T']
-DUR = C['DURATION']
-N = int(SR * DUR)
-rng = np.random.default_rng(20261018)
-
-# ---------------------------------------------------------------- buses
-def bus():
-    return np.zeros((2, N), dtype=np.float64)
-
-B = {k: bus() for k in ('drone', 'music', 'perc', 'hits', 'sfx', 'ui', 'verb')}
-
-
-def place(dst, sig, t, gain=1.0, pan=0.0, verb=0.0):
-    """Mix mono/stereo `sig` into bus `dst` at time t (s), equal-power pan."""
-    if sig.ndim == 1:
-        p = (pan + 1) * np.pi / 4
-        sig = np.vstack([sig * np.cos(p), sig * np.sin(p)])
-    i0 = int(round(t * SR))
-    if i0 >= N:
-        return
-    s0 = max(0, -i0)
-    i0 = max(0, i0)
-    n = min(sig.shape[1] - s0, N - i0)
-    if n <= 0:
-        return
-    seg = sig[:, s0:s0 + n] * gain
-    B[dst][:, i0:i0 + n] += seg
-    if verb > 0:
-        B['verb'][:, i0:i0 + n] += seg * verb
-
-
-def tt(dur):
-    return np.arange(int(dur * SR)) / SR
-
-
-def note(name):
-    names = {'C': -9, 'C#': -8, 'Db': -8, 'D': -7, 'D#': -6, 'Eb': -6, 'E': -5, 'F': -4, 'F#': -3, 'Gb': -3, 'G': -2, 'G#': -1, 'Ab': -1, 'A': 0, 'A#': 1, 'Bb': 1, 'B': 2}
-    n, o = name[:-1], int(name[-1])
-    return 440.0 * 2 ** ((names[n] + (o - 4) * 12) / 12)
-
-
-def sos_lp(fc, order=2):
-    return signal.butter(order, min(fc, SR * 0.45), 'low', fs=SR, output='sos')
-
-
-def sos_hp(fc, order=2):
-    return signal.butter(order, max(fc, 10), 'high', fs=SR, output='sos')
-
-
-def sos_bp(lo, hi, order=2):
-    return signal.butter(order, [max(lo, 10), min(hi, SR * 0.45)], 'band', fs=SR, output='sos')
-
-
-def filt(x, sos):
-    return signal.sosfilt(sos, x, axis=-1)
-
-
-def sweep_filter(x, cut_fn, kind='low', block=256, order=2):
-    """Time-varying Butterworth: coefficients per block, state carried across."""
-    y = np.zeros_like(x)
-    zi = None
-    for b in range(0, len(x), block):
-        tc = b / SR
-        fc = float(cut_fn(tc))
-        if kind == 'low':
-            sos = sos_lp(fc, order)
-        elif kind == 'high':
-            sos = sos_hp(fc, order)
-        else:
-            bw = fc * 0.35
-            sos = sos_bp(fc - bw, fc + bw, order)
-        if zi is None:
-            zi = signal.sosfilt_zi(sos) * 0
-        y[b:b + block], zi = signal.sosfilt(sos, x[b:b + block], zi=zi)
-    return y
-
-
-def saw(f, dur, phase=0.0):
-    t = tt(dur)
-    if np.isscalar(f):
-        ph = f * t + phase
-    else:
-        ph = np.cumsum(f) / SR + phase
-    return 2 * (ph - np.floor(ph + 0.5))
-
-
-def sine(f, dur, phase=0.0):
-    t = tt(dur)
-    if np.isscalar(f):
-        return np.sin(2 * np.pi * f * t + phase)
-    return np.sin(2 * np.pi * np.cumsum(f) / SR + phase)
-
-
-def noise(dur):
-    return rng.standard_normal(int(dur * SR))
-
-
-def env_exp(dur, decay, attack=0.002):
-    t = tt(dur)
-    a = np.minimum(1, t / max(attack, 1e-4))
-    return a * np.exp(-t * decay)
-
-
-def env_ar(dur, attack, release, curve=2.0):
-    t = tt(dur)
-    up = np.clip(t / max(attack, 1e-4), 0, 1) ** curve
-    down = np.clip((dur - t) / max(release, 1e-4), 0, 1) ** curve
-    return np.minimum(up, down)
-
-
-# ---------------------------------------------------------------- instruments
-def click(freq=4000, dur=0.012, q=0.5):
-    x = noise(dur) * env_exp(dur, 900, 0.0003)
-    return filt(x, sos_bp(freq * (1 - q * 0.5), freq * (1 + q)))
-
-
-def blip(f, dur=0.05, harm=0.25, decay=60):
-    t = tt(dur)
-    e = env_exp(dur, decay, 0.001)
-    return (np.sin(2 * np.pi * f * t) + harm * np.sin(4 * np.pi * f * t)) * e
-
-
-def thump(f0=70, f1=34, dur=0.9, decay=5.0, punch=24):
-    t = tt(dur)
-    f = f1 + (f0 - f1) * np.exp(-t * punch)
-    body = sine(f, dur) * env_exp(dur, decay, 0.001)
-    tr = filt(noise(0.02), sos_lp(2500)) * env_exp(0.02, 200)
-    out = body
-    out[: len(tr)] += tr * 0.4
-    return out
-
-
-def braam(dur=4.0, notes=('D1', 'A1', 'D2', 'A2'), bright=2600, gain=1.0, decay=1.6):
-    """Detuned saw stack through a fast-opening, slow-closing lowpass + drive."""
-    n = int(dur * SR)
-    acc = np.zeros(n)
-    for nm in notes:
-        f = note(nm)
-        for d in (-0.012, -0.005, 0.0, 0.006, 0.013):
-            acc += saw(f * (1 + d), dur, rng.random())
-    acc /= len(notes) * 3.0
-    cut = lambda tc: 160 + (bright - 160) * min(1.0, tc / 0.07) * np.exp(-max(0.0, tc - 0.07) * decay)
-    y = sweep_filter(acc, cut, 'low', order=2)
-    y = np.tanh(y * 2.2) * env_ar(dur, 0.012, dur * 0.85, 1.2)
-    sub = sine(note(notes[0]) * np.ones(n) * (1 + 0.5 * np.exp(-tt(dur) * 18)), dur) * env_exp(dur, 1.3, 0.004)
-    imp = filt(noise(0.6), sos_lp(900)) * env_exp(0.6, 9)
-    out = y * 0.85 + sub * 0.9
-    out[: len(imp)] += imp * 0.5
-    return out * gain
-
-
-def whoosh(dur=1.2, f0=400, f1=4000, peak=0.5):
-    x = noise(dur)
-    t0 = tt(dur)
-    cut = lambda tc: f0 * (f1 / f0) ** min(1.0, tc / dur)
-    y = sweep_filter(x, cut, 'band', order=2)
-    shape = np.exp(-((t0 / dur - peak) ** 2) / 0.05)
-    return y * shape
-
-
-def riser(dur=3.0, f0=200, f1=6000):
-    x = noise(dur)
-    cut = lambda tc: f0 * (f1 / f0) ** ((tc / dur) ** 1.6)
-    y = sweep_filter(x, cut, 'band', order=2)
-    t0 = tt(dur)
-    tone = sine(f0 * (f1 / f0 / 8) ** ((t0 / dur) ** 1.6) * np.ones_like(t0), dur) * 0.2
-    return (y + tone) * (t0 / dur) ** 2.2
-
-
-def shepard(dur, rate_oct_per_s, base=40.0, layers=9, accel=0.0):
-    t0 = tt(dur)
-    pos = rate_oct_per_s * t0 + 0.5 * accel * t0 ** 2
-    out = np.zeros_like(t0)
-    for k in range(layers):
-        o = (k + pos) % layers
-        f = base * 2 ** o
-        a = np.exp(-((o - layers / 2) ** 2) / (2 * (layers / 5) ** 2))
-        ph = np.cumsum(f) / SR
-        out += np.sin(2 * np.pi * ph) * a
-    return out / layers * 2
-
-
-def fm_bell(f, dur=2.0, ratio=3.5, index=4.0, decay=2.5):
-    t = tt(dur)
-    e = env_exp(dur, decay, 0.002)
-    mod = np.sin(2 * np.pi * f * ratio * t) * index * np.exp(-t * 3)
-    return np.sin(2 * np.pi * f * t + mod) * e
-
-
-def pluck(f, dur=0.22, cutoff=1800, decay=14):
-    x = saw(f, dur, rng.random()) + 0.5 * saw(f * 1.005, dur, rng.random())
-    e = env_exp(dur, decay, 0.002)
-    cut = lambda tc: 120 + cutoff * np.exp(-tc * 22)
-    return sweep_filter(x * e, cut, 'low', block=128, order=2) * 0.7
-
-
-def pad(freqs, dur, cutoff=900, attack=1.2, release=1.5):
-    n = int(dur * SR)
-    acc = np.zeros(n)
-    for f in freqs:
-        for d in (-0.004, 0.0, 0.0045):
-            acc += saw(f * (1 + d), dur, rng.random())
-    acc /= len(freqs) * 3
-    y = filt(acc, sos_lp(cutoff, 2))
-    return y * env_ar(dur, attack, release, 1.5)
-
-
-def static(dur, lo=1500, hi=9000):
-    return filt(noise(dur), sos_bp(lo, hi))
-
-
-def stereo_noise_bed(dur, lo, hi):
-    return np.vstack([filt(noise(dur), sos_bp(lo, hi)), filt(noise(dur), sos_bp(lo, hi))])
-
-
-# =================================================================== ACT 0
-# room tone that the whole film sits on
-bed = stereo_noise_bed(DUR, 30, 140) * 0.05
-ramp_bed = np.clip(tt(DUR) / 3.0, 0, 1)
-B['drone'] += bed * ramp_bed
-
-# sub drone: D1 + A1, breathing; intensity rises with the film, dies at the cut
-t_all = tt(DUR)
-intensity = np.interp(t_all, [0, 5, 9, 16, 30, 52, 60.4, 60.5, 61.2, 66, 72], [0.0, 0.25, 0.45, 0.6, 0.7, 0.85, 1.0, 0.0, 0.0, 0.7, 0.0])
-dr = (np.sin(2 * np.pi * note('D1') * t_all) * 0.6 + np.sin(2 * np.pi * note('A1') * 1.001 * t_all) * 0.25 + np.sin(2 * np.pi * note('D2') * 0.999 * t_all) * 0.18)
-dr *= 0.85 + 0.15 * np.sin(2 * np.pi * 0.11 * t_all)
-B['drone'] += np.vstack([dr, dr]) * intensity * 0.35
-
-# electrical hum under the boot console
-hum_e = np.interp(t_all, [0.4, 1.2, T['collapse'], T['seed']], [0, 1, 1, 0], left=0, right=0)
-hum = (sine(100, DUR) * 0.3 + sine(150, DUR) * 0.12 + filt(noise(DUR), sos_bp(90, 400)) * 0.05) * hum_e
-place('sfx', hum, 0, 0.18)
-
-# keystrokes
-for k in C['boot']:
-    if k['ch'] == ' ':
-        continue
-    f = 3500 + rng.random() * 2500
-    place('ui', click(f, 0.01), k['t'], 0.22 + rng.random() * 0.08, pan=(rng.random() - 0.5) * 0.3)
-# "OK" confirmation
-place('ui', blip(1760, 0.09) * 0.6 + blip(2640, 0.09) * 0.3, T['boot'] + 0.75 + 41 / 55, 0.25, verb=0.2)
-# cursor appears
-place('ui', blip(1200, 0.03), T['cursor'], 0.12)
-
-# collapse: suck-in riser then silence, then the seed ignites
-place('sfx', riser(T['seed'] - T['collapse'] + 0.05, 300, 9000)[::-1][::-1] * 1.0, T['collapse'], 0.35)
-rev = whoosh(0.6, 6000, 300, 0.85)
-place('sfx', rev, T['collapse'] - 0.15, 0.4)
-place('hits', thump(90, 32, 1.4, 3.5), T['seed'], 0.85, verb=0.3)
-place('ui', fm_bell(note('D6'), 2.5, 2.0, 1.5, 1.6), T['seed'], 0.16, verb=0.6)
-
-# heartbeat
-for bt, g in ((T['beat1'], 0.9), (T['beat2'], 1.0)):
-    place('hits', thump(62, 30, 0.7, 7.5, 30), bt, g * 1.4, verb=0.25)
-    place('hits', thump(52, 28, 0.6, 9, 30), bt + 0.19, g * 0.55, verb=0.2)
-
-# dish ticks: 120 ticks swept around the ring, panned with the sweep
-for i in range(120):
-    k = i / 120
-    # easeInOut timing of the sweep
-    u = np.interp(k, np.linspace(0, 1, 400), [((4 * x ** 3) if x < 0.5 else 1 - (-2 * x + 2) ** 3 / 2) for x in np.linspace(0, 1, 400)])
-    tk = T['dishDraw'] + u * (T['dishDone'] - T['dishDraw'])
-    loud = 0.12 if i % 10 == 0 else 0.05
-    place('ui', click(6500 if i % 10 else 3800, 0.008), tk, loud, pan=np.sin(k * 2 * np.pi) * 0.8)
-
-# =================================================================== ACT 1 growth
-gs, ge = T['growStart'], T['growEnd']
-# granular crackle, density following exponential growth
-for _ in range(2600):
-    x = rng.random() ** 0.45  # skewed late
-    tc = gs + x * (ge - gs + 0.3)
-    k = (np.exp(3 * (tc - gs) / (ge - gs)) - 1) / (np.exp(3) - 1)
-    if rng.random() > 0.15 + 0.85 * k:
-        continue
-    f = 1800 + rng.random() * 7000
-    place('sfx', click(f, 0.006 + rng.random() * 0.01, 0.8), tc, 0.05 + 0.1 * rng.random() * (0.4 + k), pan=rng.uniform(-0.9, 0.9))
-# organic tone: saw cluster gliding up an octave, filter opening
-dur = ge - gs + 0.6
-tg = tt(dur)
-glide = note('D2') * 2 ** (((tg / dur) ** 1.8))
-cl = (saw(glide, dur) + saw(glide * 1.007, dur) + saw(glide * 1.5, dur) * 0.4)
-cl = sweep_filter(cl, lambda tc: 150 + 2200 * (tc / dur) ** 2, 'low', order=2)
-cl *= env_ar(dur, 2.5, 0.35, 1.4) * 0.18
-place('music', cl, gs, 1.0, verb=0.25)
-# city pings as the culture learns names
-for i in range(30):
-    tc = 10.2 + (i / 30) ** 0.8 * 5.2 + rng.random() * 0.1
-    place('ui', blip(2000 + rng.choice([0, 300, 500, 700, 1000]), 0.06, 0.2, 45), tc, 0.08, pan=rng.uniform(-0.8, 0.8), verb=0.25)
-# reverse swell into the substrate hit
-place('sfx', riser(1.6, 120, 5000), T['substrate'] - 1.6, 0.3)
-
-# =================================================================== hits
-place('hits', braam(4.5, ('D1', 'A1', 'D2'), 1800, 1.0, 1.4), T['substrate'], 0.75, verb=0.35)
-
-# =================================================================== ACT 2 indexing
-BPM = 120.0
-beat = 60 / BPM
-s16 = beat / 4
-grid0 = 17.0
-
-pattern = ['D3', 'D3', 'F3', 'D3', 'A3', 'D3', 'C4', 'D3', 'D3', 'D3', 'F3', 'D3', 'G3', 'D3', 'A3', 'F3']
-prog = [('D', ['D3', 'F3', 'A3']), ('Bb', ['Bb2', 'D3', 'F3']), ('G', ['G2', 'Bb2', 'D3']), ('A', ['A2', 'C#3', 'E3'])]
-
-
-def ostinato(t0, t1, cutoff_fn, gain_fn, transpose=0, every=1):
-    i = 0
-    t = t0
-    while t < t1 - 1e-6:
-        if i % every == 0:
-            nm = pattern[i % 16]
-            bar = int((t - grid0) / (beat * 8)) % 4
-            f = note(nm) * 2 ** (transpose / 12)
-            # follow the chord root on bar changes
-            if prog[bar][0] == 'Bb' and nm == 'A3':
-                f = note('Bb3')
-            if prog[bar][0] == 'A' and nm == 'C4':
-                f = note('C#4')
-            acc = 1.0 if i % 4 == 0 else 0.7
-            place('music', pluck(f, 0.25, cutoff_fn(t)), t, gain_fn(t) * acc, pan=0.25 if i % 2 else -0.25, verb=0.12)
-        i += 1
-        t += s16
-
-
-ostinato(17.0, 29.9, lambda t: 500 + 2200 * ((t - 17) / 13) ** 1.5, lambda t: 0.06 + 0.1 * (t - 17) / 13)
-
-# pads under indexing
-for k, t0 in enumerate(np.arange(17.0, 30.0, 4.0)):
-    nm, ch = prog[k % 4]
-    place('music', pad([note(x) for x in ch], 4.3, 700 + k * 120, 1.0, 1.2), t0, 0.12, verb=0.3)
-
-# tile flips: a spray of pitched blips, hemisphere in view only
-scale = [note(x) for x in ('D6', 'F6', 'G6', 'A6', 'C7', 'D7')]
-for tl in C['tiles']:
-    if not tl['vis'] or tl['t'] > 26.5:
-        continue
-    z = tl['z']
-    if z == 5 and rng.random() > 0.35:
-        continue
-    f = scale[rng.integers(0, len(scale))] / (2 if z == 3 else 1) * (1 if z < 5 else 1.5)
-    g = {3: 0.07, 4: 0.04, 5: 0.025}[z]
-    place('ui', blip(f, 0.05, 0.1, 70), tl['t'], g, pan=tl['pan'] * 0.8, verb=0.1)
-    if z == 3:
-        place('ui', click(3000, 0.012), tl['t'], 0.06, pan=tl['pan'] * 0.8)
-
-
-def shutter(t, g=1.0, pan=0.3):
-    place('sfx', click(3800, 0.008, 0.6), t, 0.5 * g, pan)
-    place('sfx', click(2200, 0.014, 0.6), t + 0.045, 0.4 * g, pan)
-    place('sfx', thump(160, 90, 0.05, 60, 80), t, 0.15 * g, pan)
-    place('ui', blip(2637, 0.05, 0.1, 60), t + 0.07, 0.12 * g, pan)
-
-
-for cp in C['caps']:
-    if cp['slow']:
-        t0 = cp['t']
-        shutter(t0, 1.0, -0.35)
-        # the enhance: rising sweep with data chatter
-        d = 1.05
-        tz = tt(d)
-        f = 300 * (8 ** ((tz / d) ** 1.5))
-        sw = sine(f, d) * 0.5 + sine(f * 1.5, d) * 0.15
-        sw *= env_ar(d, 0.1, 0.15) * (0.7 + 0.3 * np.sin(2 * np.pi * 18 * tz))
-        place('sfx', sw, t0 + 0.28, 0.06, -0.3, verb=0.2)
-        for j in range(16):
-            place('ui', blip(1500 + rng.random() * 3000, 0.02, 0, 120), t0 + 0.3 + j * 0.06, 0.05, rng.uniform(-0.6, 0.2))
-        place('sfx', whoosh(0.5, 800, 5000, 0.5), t0 + 1.35, 0.18, 0.4)
-        place('ui', click(5000, 0.01), t0 + 1.75, 0.2, 0.6)
-    else:
-        shutter(cp['t'], 0.55, 0.6)
-
-# full-frame feature extraction
-cf = T['capFull']
-place('sfx', whoosh(0.7, 300, 3000, 0.4), cf, 0.3)
-place('hits', thump(80, 40, 0.8, 6), cf + 0.5, 0.35, verb=0.3)
-scan_d = 1.6
-ts = tt(scan_d)
-scan = (sine(220, scan_d) + 0.5 * sine(440 * (1 + 0.002 * np.sin(2 * np.pi * 6 * ts)), scan_d) + 0.3 * sine(1320, scan_d)) * env_ar(scan_d, 0.08, 0.2)
-scan *= 0.6 + 0.4 * np.sin(2 * np.pi * 12 * ts)
-place('sfx', scan, cf + 0.75, 0.07, 0, verb=0.2)
-for j in range(70):
-    place('ui', click(5000 + rng.random() * 3000, 0.006), cf + 0.75 + j * (1.6 / 70), 0.06, rng.uniform(-0.5, 0.5))
-# collapse into the planet
-place('sfx', riser(0.9, 300, 8000), T['indexed'] - 0.9, 0.4)
-place('sfx', whoosh(0.5, 6000, 200, 0.8), T['indexed'] - 0.45, 0.35)
-
-# SURFACE INDEXED
-place('hits', braam(5.0, ('D1', 'A1', 'D2', 'F2'), 2600, 1.0, 1.1), T['indexed'], 0.95, verb=0.4)
-
-# =================================================================== ACT 3 ingestion
-ostinato(30.5, 52.4, lambda t: 900 + 2600 * min(1, (t - 30.5) / 18), lambda t: 0.09 + 0.06 * (t - 30.5) / 22)
-# bass
-for k, t0 in enumerate(np.arange(30.5, 52.4, beat * 2)):
-    bar = int((t0 - grid0) / (beat * 8)) % 4
-    root = {'D': 'D1', 'Bb': 'Bb0', 'G': 'G1', 'A': 'A1'}[prog[bar][0]]
-    b = saw(note(root), 0.9) + saw(note(root) * 1.004, 0.9)
-    b = filt(b, sos_lp(260)) * env_exp(0.9, 3.5, 0.005)
-    place('music', b, t0, 0.22)
-for k, t0 in enumerate(np.arange(30.5, 52.4, 4.0)):
-    nm, ch = prog[k % 4]
-    place('music', pad([note(x) for x in ch] + [note(ch[0][:-1] + str(int(ch[0][-1]) + 1))], 4.3, 1100, 0.8, 1.2), t0, 0.12, verb=0.3)
-# percussion: low taiko-ish hits + ticks
-for i, t0 in enumerate(np.arange(30.5, 52.4, beat)):
-    if i % 4 in (0, 2) or (i % 8 == 7):
-        place('perc', thump(95, 45, 0.5, 9, 40), t0, 0.45 if i % 4 == 0 else 0.3, verb=0.12)
-    place('perc', click(9000, 0.02, 0.4), t0 + beat / 2, 0.06)
-    if i % 4 == 2:
-        sn = filt(noise(0.2), sos_bp(900, 4000)) * env_exp(0.2, 22) + sine(190, 0.2) * env_exp(0.2, 30) * 0.5
-        place('perc', sn, t0, 0.13, verb=0.25)
-
-
-def feed_sig(key, t):
-    """Each feed gets its own sonic signature as it comes online."""
-    place('ui', blip(1760, 0.06, 0.2, 40) + blip(2349, 0.06, 0.1, 40) * 0.6, t, 0.15, -0.5, verb=0.15)
-    place('ui', click(4500, 0.01), t, 0.25, -0.5)
-    if key == 'air':
-        for j in range(500):
-            x = rng.random() ** 0.7 * 1.9
-            place('ui', click(5000 + rng.random() * 4000, 0.004), t + x, 0.05 + rng.random() * 0.05, rng.uniform(-0.9, 0.9))
-        place('sfx', whoosh(1.4, 500, 7000, 0.35), t, 0.18, 0.3)
-    elif key == 'sea':
-        ping = sine(1150 * np.exp(-tt(2.2) * 0.05), 2.2) * env_exp(2.2, 2.2, 0.003)
-        place('sfx', ping, t + 0.05, 0.22, 0.2, verb=0.8)
-        place('sfx', ping, t + 1.05, 0.1, -0.3, verb=0.8)
-        place('sfx', filt(noise(2.0), sos_lp(400)) * env_ar(2.0, 0.5, 1.2), t, 0.2)
-    elif key == 'mil':
-        for j in range(3):
-            tone = (np.sign(np.sin(2 * np.pi * 740 * tt(0.12))) * 0.3 + sine(740, 0.12)) * env_ar(0.12, 0.005, 0.03)
-            place('ui', filt(tone, sos_lp(3000)), t + 0.1 + j * 0.22, 0.12, 0.3)
-            tone2 = (np.sign(np.sin(2 * np.pi * 554 * tt(0.12))) * 0.3 + sine(554, 0.12)) * env_ar(0.12, 0.005, 0.03)
-            place('ui', filt(tone2, sos_lp(3000)), t + 0.21 + j * 0.22, 0.1, 0.3)
-    elif key == 'orbit':
-        for j in range(26):
-            f = scale[rng.integers(0, len(scale))] * rng.choice([0.5, 1, 1])
-            place('music', fm_bell(f, 2.5, 3.5, 2.5, 2.2), t + rng.random() * 2.2, 0.035, rng.uniform(-0.9, 0.9), verb=0.6)
-        place('sfx', whoosh(2.8, 2500, 200, 0.4), t + 0.2, 0.3, 0)
-        place('hits', thump(60, 30, 1.6, 2.5), t + 0.1, 0.4, verb=0.3)
-    elif key == 'quake':
-        for j, dt in enumerate((0.05, 0.42, 0.95)):
-            place('hits', thump(55, 26, 1.4, 3.2, 18), t + dt, 0.6 - j * 0.12, rng.uniform(-0.5, 0.5), verb=0.25)
-        place('sfx', filt(noise(2.5), sos_lp(90)) * env_ar(2.5, 0.2, 1.8), t, 0.9)
-    elif key == 'fire':
-        d = 2.2
-        for j in range(900):
-            x = rng.random() ** 1.3 * d
-            g = (1 - x / d) * 0.12
-            place('sfx', click(800 + rng.random() * 5000, 0.004 + rng.random() * 0.01, 0.9), t + x, g * rng.random(), rng.uniform(-0.8, 0.8))
-        place('sfx', filt(noise(d), sos_bp(200, 1500)) * env_ar(d, 0.05, 1.6), t, 0.08)
-    elif key == 'wind':
-        d = 3.0
-        w = sweep_filter(noise(d), lambda tc: 250 + 900 * np.sin(np.pi * tc / d), 'band', order=2)
-        w2 = sweep_filter(noise(d), lambda tc: max(180, 300 + 700 * np.sin(np.pi * tc / d + 0.6)), 'band', order=2)
-        place('sfx', np.vstack([w, w2]) * env_ar(d, 0.6, 1.6), t, 0.4)
-    elif key == 'cable':
-        d = 1.8
-        buzz = filt(saw(60, d) + 0.5 * saw(120.5, d), sos_bp(300, 2500)) * env_ar(d, 0.02, 1.0)
-        gate = (np.sin(2 * np.pi * 7 * tt(d)) > 0.2).astype(float)
-        place('sfx', buzz * (0.4 + 0.6 * gate), t, 0.08, 0.2)
-        place('sfx', sine(3000 * np.exp(-tt(0.25) * 12) + 150, 0.25) * env_exp(0.25, 12), t, 0.1, -0.2)
-    elif key == 'cctv':
-        for j in range(9):
-            tc = t + 0.25 + j * 0.12
-            place('sfx', click(2500, 0.01), tc, 0.3, rng.uniform(-0.7, 0.7))
-            place('sfx', static(0.12) * env_exp(0.12, 25), tc, 0.05, rng.uniform(-0.7, 0.7))
-
-
-for fd in C['feeds']:
-    feed_sig(fd['key'], fd['t'])
-
-# camera moves
-place('sfx', whoosh(2.3, 200, 2500, 0.5), 33.6, 0.22, -0.4)
-place('sfx', whoosh(2.8, 2200, 180, 0.5), 37.2, 0.22, 0.4)
-place('sfx', whoosh(2.0, 300, 3000, 0.5), 40.4, 0.15, -0.2)
-
-# THE WALL
-wall_t = T['cctvWall']
-place('hits', braam(3.5, ('D1', 'A1', 'D2'), 1900, 0.9, 1.6), wall_t, 0.85, verb=0.3)
-for j in range(100):
-    tc = wall_t + (rng.random() ** 0.8) * 0.85 + rng.random() * 0.12
-    place('sfx', click(2000 + rng.random() * 2500, 0.012), tc, 0.18, rng.uniform(-0.95, 0.95))
-    place('sfx', static(0.08) * env_exp(0.08, 30), tc, 0.04, rng.uniform(-0.95, 0.95))
-wd = T['cctvOut'] - wall_t + 0.3
-wbed = stereo_noise_bed(wd, 800, 7000) * env_ar(wd, 0.4, 0.25)
-place('sfx', wbed, wall_t, 0.05)
-murmur = (sine(15625 / 2, wd) * 0.02 + filt(noise(wd), sos_bp(100, 300)) * 0.4) * env_ar(wd, 0.3, 0.2)
-place('sfx', murmur, wall_t, 0.12)
-# the watcher hopping cell to cell (7 Hz)
-for j in range(int((T['cctvOut'] - wall_t - 0.8) * 7)):
-    tc = wall_t + 0.8 + j / 7
-    place('ui', blip(3136, 0.025, 0.0, 90), tc, 0.06, rng.uniform(-0.8, 0.8))
-# rapid list
-for j, tc in enumerate(C['rapid']):
-    place('ui', blip(note('D6') * 2 ** (j / 12 * 2), 0.06, 0.2, 45), tc, 0.12, -0.5, verb=0.15)
-# collapse
-place('sfx', whoosh(0.6, 5000, 150, 0.7), T['cctvOut'] - 0.1, 0.4)
-place('hits', thump(80, 30, 1.6, 2.8), T['cctvOut'] + 0.4, 0.7, verb=0.35)
-
-# =================================================================== ACT 4 saturation
-sat0, cut = T['saturate'], T['cut']
-# pulse intensifies: 16ths, then doubled at the octave
-ostinato(52.5, cut, lambda t: 2400 + 3000 * (t - 52.5) / 8, lambda t: 0.12 + 0.06 * (t - 52.5) / 8)
-ostinato(55.5, cut, lambda t: 3000, lambda t: 0.05 + 0.06 * (t - 55.5) / 5, transpose=12)
-for i, t0 in enumerate(np.arange(52.5, cut, beat)):
-    k = (t0 - 52.5) / 8
-    place('perc', thump(100, 42, 0.55, 8, 40), t0, 0.5 + 0.25 * k, verb=0.15)
-    if t0 > 55.0:
-        place('perc', thump(100, 42, 0.4, 10, 40), t0 + beat / 2, 0.3 + 0.2 * k)
-    if i % 2 == 1:
-        sn = filt(noise(0.25), sos_bp(900, 5000)) * env_exp(0.25, 16) + sine(190, 0.25) * env_exp(0.25, 26) * 0.5
-        place('perc', sn, t0, 0.18 + 0.12 * k, verb=0.3)
-    # 32nd-note snare roll in the last bar
-    if t0 > 58.4:
-        for q in range(4):
-            sn = filt(noise(0.08), sos_bp(1200, 6000)) * env_exp(0.08, 40)
-            place('perc', sn, t0 + q * beat / 4, 0.1 + 0.05 * q)
-for k, t0 in enumerate(np.arange(52.5, cut, 2.0)):
-    nm, ch = prog[k % 4]
-    place('music', pad([note(x) for x in ch] + [note(x[:-1] + str(int(x[-1]) + 1)) for x in ch], 2.2, 1600 + k * 300, 0.3, 0.6), t0, 0.14, verb=0.3)
-# Shepard riser across the whole act
-sd = cut - sat0
-place('music', shepard(sd, 0.45, 40, 9, 0.12) * env_ar(sd, 2.5, 0.01, 1.3), sat0, 0.22, verb=0.2)
-place('sfx', riser(sd, 150, 9000), sat0, 0.25)
-# status lines type in
-for st in C['status']:
-    for j in range(14):
-        place('ui', click(4000 + rng.random() * 2000, 0.008), st + j * 0.028, 0.12, 0.4)
-    place('ui', blip(2093, 0.05, 0.2, 50), st + 0.42, 0.1, 0.4)
-# lattice building shimmer
-for j in range(400):
-    tc = T['twin'] + rng.random() ** 0.7 * (T['dishBreak'] - T['twin'])
-    place('ui', blip(4000 + rng.random() * 5000, 0.015, 0, 150), tc, 0.025, rng.uniform(-1, 1), verb=0.3)
-# containment alarm
-for j, tc in enumerate(np.arange(56.6, T['dishBreak'], 0.36)):
-    k = (tc - 56.6) / (T['dishBreak'] - 56.6)
-    tone = filt((np.sign(np.sin(2 * np.pi * 880 * tt(0.16))) * 0.4 + sine(880, 0.16)), sos_lp(2500)) * env_ar(0.16, 0.01, 0.05)
-    place('ui', tone, tc, 0.04 + 0.08 * k, 0.0, verb=0.2)
-    place('ui', filt((np.sign(np.sin(2 * np.pi * 660 * tt(0.16))) * 0.4 + sine(660, 0.16)), sos_lp(2500)) * env_ar(0.16, 0.01, 0.05), tc + 0.18, 0.04 + 0.08 * k, verb=0.2)
-# the breach: impact + shattering ring
-db = T['dishBreak']
-place('hits', braam(3.0, ('D1', 'A1', 'D2', 'A2'), 3200, 1.0, 1.2), db, 1.0, verb=0.4)
-place('hits', thump(120, 28, 2.5, 1.8, 14), db, 0.9)
-for j in range(220):
-    tc = db + (rng.random() ** 2.2) * 1.1
-    f = 2500 + rng.random() * 7000
-    gr = filt(noise(0.25), sos_bp(f * 0.97, f * 1.03)) * env_exp(0.25, 10 + rng.random() * 25)
-    place('sfx', gr, tc, 0.18 * (1 - (tc - db) / 1.2), rng.uniform(-1, 1), verb=0.3)
-# OMNIPRESENT
-om = T['omni']
-place('hits', braam(2.5, ('D1', 'D2', 'A2', 'D3'), 3800, 1.0, 0.8), om, 0.9, verb=0.45)
-place('ui', fm_bell(note('A6'), 1.5, 2.0, 1.2, 2.0), om, 0.08, verb=0.5)
-
-# =================================================================== ACT 5 title
-ti = T['title']
-# the hush after the cut, then a warm low bloom
-d = DUR - ti
-warm = (sine(note('D1'), d) * 0.6 + sine(note('A1') * 1.002, d) * 0.3 + sine(note('D2') * 0.998, d) * 0.2)
-warm *= np.interp(tt(d), [0, 0.8, 2.0, d - 3.5, d], [0, 0.4, 0.7, 0.6, 0])
-place('drone', warm, ti, 0.35)
-air = stereo_noise_bed(d, 2000, 12000) * np.interp(tt(d), [0, 1.5, d - 3, d], [0, 1, 1, 0])
-place('drone', air, ti, 0.012)
-# eye opens
-eo = T['eyeOpen']
-place('sfx', riser(0.9, 400, 7000), eo - 0.9, 0.18)
-place('hits', thump(70, 34, 2.5, 2.2), eo, 0.55, verb=0.4)
-for f, g in ((note('D6'), 0.06), (note('A6'), 0.05), (note('E7'), 0.035), (note('D5'), 0.05)):
-    place('music', fm_bell(f, 4.5, 2.0, 0.8, 0.8), eo, g, rng.uniform(-0.5, 0.5), verb=0.8)
-# wordmark: decode chatter then the warm hit
-wm = T['wordmark']
-for j in range(40):
-    place('ui', click(3000 + rng.random() * 4000, 0.007), wm + j * 0.022, 0.08, rng.uniform(-0.4, 0.4))
-place('hits', braam(6.0, ('D1', 'A1', 'D2', 'E2'), 1400, 1.0, 0.5), wm + 0.85, 0.7, verb=0.5)
-place('music', pad([note(x) for x in ('D3', 'A3', 'E4', 'F#4', 'A4')], 7.5, 1400, 1.5, 3.5), wm + 0.85, 0.16, verb=0.5)
-# tagline keystrokes
-tg_t = T['tagline']
-for j, ch in enumerate('NO PLACE LEFT BEHIND.'):
-    if ch != ' ':
-        place('ui', click(3800 + rng.random() * 1500, 0.009), tg_t + j / 22, 0.14)
-# ONLINE
-on = T['online']
-place('ui', blip(note('A5'), 0.12, 0.3, 18), on, 0.16, verb=0.5)
-place('ui', blip(note('D6'), 0.35, 0.3, 8), on + 0.12, 0.16, verb=0.6)
-place('hits', thump(60, 30, 3.5, 1.4, 10), on, 0.6, verb=0.5)
-place('music', pad([note(x) for x in ('D2', 'A2', 'D3', 'E3', 'A3')], DUR - on, 900, 0.8, 3.5), on, 0.12, verb=0.4)
-
-# =================================================================== reverb
-def make_ir(rt60=3.4, pre=0.025):
-    n = int((rt60 + pre) * SR)
-    t0 = np.arange(n) / SR
-    ir = np.zeros((2, n))
-    for c in range(2):
-        x = rng.standard_normal(n) * np.exp(-6.9 * t0 / rt60)
-        # darker tail: blend toward a lowpassed copy over time
-        lp = filt(x, sos_lp(2500))
-        mix = np.clip(t0 / 1.5, 0, 1)
-        ir[c] = x * (1 - mix) + lp * mix
-        ir[c, : int(pre * SR)] = 0
-    return ir / np.sqrt(np.sum(ir ** 2) / 2)
-
-
-ir = make_ir()
-wet = np.vstack([signal.fftconvolve(B['verb'][c], ir[c])[:N] for c in range(2)])
-
-# =================================================================== mix + master
-# pre-hit dips: the bed drops out for a beat so each impact lands in a hole
-dip = np.ones(N)
-for ht, depth in ((T['substrate'], 0.3), (T['indexed'], 0.25), (T['cctvWall'], 0.4), (T['cctvOut'] + 0.4, 0.4), (T['dishBreak'], 0.2), (T['omni'], 0.45), (T['wordmark'] + 0.85, 0.4)):
-    a, b, c = int((ht - 0.28) * SR), int((ht - 0.03) * SR), int((ht + 0.5) * SR)
-    dip[a:b] = np.minimum(dip[a:b], np.linspace(1, depth, b - a))
-    dip[b:c] = np.minimum(dip[b:c], np.linspace(depth, 1, c - b) ** 0.7)
-bed_mix = (B['drone'] * 1.0 + B['music'] * 0.9 + B['perc'] * 0.8 + B['sfx'] * 0.9 + B['ui'] * 0.85) * dip
-mix = bed_mix + B['hits'] * 1.25 + wet * 0.32
-mix = filt(mix, sos_hp(24, 2))
-
-# glitch stutter into the cut, then hard silence until the title
-def stutter(x, a, b, slice_s=0.045):
-    ia, ib = int(a * SR), int(b * SR)
-    sl = int(slice_s * SR)
-    src = x[:, ia:ia + sl].copy()
-    for i in range(ia, ib, sl):
-        n = min(sl, ib - i)
-        x[:, i:i + n] = src[:, :n] * (0.9 if ((i - ia) // sl) % 2 == 0 else 0.6)
-    return x
-
-
-mix = stutter(mix, cut - 0.22, cut, 0.04)
-ic = int(cut * SR)
-it = int(T['title'] * SR)
-fade = int(0.004 * SR)
-mix[:, ic - fade:ic] *= np.linspace(1, 0, fade)
-mix[:, ic:it] = 0
-# collapse glitch: tiny stutter as the console implodes
-mix = stutter(mix, T['collapse'] + 0.02, T['collapse'] + 0.14, 0.03)
-
-# glue: slow RMS compressor, then soft clip and a lookahead peak limiter
-def rms_env(x, win_s=0.05):
-    w = int(win_s * SR)
-    p = np.mean(x ** 2, axis=0)
-    k = np.ones(w) / w
-    return np.sqrt(np.convolve(p, k, mode='same') + 1e-12)
-
-
-env = rms_env(mix, 0.08)
-thr = 10 ** (-15 / 20)
-ratio = 1.8
-gain = np.where(env > thr, (thr * (env / thr) ** (1 / ratio)) / env, 1.0)
-gain = signal.sosfiltfilt(sos_lp(8), gain)
-mix *= gain
-mix = np.tanh(mix * 1.6) / 1.6
-
-look = int(0.004 * SR)
-peak = np.max(np.abs(mix), axis=0)
-peak = np.lib.stride_tricks.sliding_window_view(np.pad(peak, (0, look)), look + 1).max(axis=1)[:N]
-ceiling = 10 ** (-1.2 / 20)
-lg = np.minimum(1.0, ceiling / np.maximum(peak, 1e-9))
-lg = np.minimum.reduce([lg, np.roll(lg, 1), np.roll(lg, -1)])
-lg = signal.sosfiltfilt(sos_lp(60), lg)
-mix *= np.minimum(lg, 1.0)
-mix *= ceiling / max(1e-9, np.max(np.abs(mix)))
-
-out = os.path.join(HERE, 'score.wav')
-wavfile.write(out, SR, (mix.T * (2 ** 31 - 1)).astype(np.int32))
-print('wrote', out, f'{DUR}s', 'peak', np.max(np.abs(mix)))

intro-sequence/audio/sfx.py

@@ -1,527 +0,0 @@
-#!/usr/bin/env python3
-"""God's Eye View — First Light (v2): sound design, built to sit under a music track.
-
-No melody, no beeps. Sub, air, metal, impacts, swells, data texture — a tech
-thriller palette that leaves the mids for the score. Everything is synthesised
-and placed against audio/cues.json (exported from src/timeline.js).
-
-    python3 audio/sfx.py   -> audio/sfx.wav (48 kHz, 24-bit stereo)
-"""
-import json
-import os
-import numpy as np
-from scipy import signal
-from scipy.io import wavfile
-
-SR = 48000
-HERE = os.path.dirname(os.path.abspath(__file__))
-C = json.load(open(os.path.join(HERE, 'cues.json')))
-T = C['T']
-DUR = C['DURATION']
-N = int(SR * DUR)
-rng = np.random.default_rng(20261019)
-
-B = {k: np.zeros((2, N)) for k in ('bed', 'hits', 'fx', 'ui', 'verb')}
-
-
-def place(dst, sig, t, gain=1.0, pan=0.0, verb=0.0):
-    if sig.ndim == 1:
-        p = (pan + 1) * np.pi / 4
-        sig = np.vstack([sig * np.cos(p), sig * np.sin(p)])
-    i0 = int(round(t * SR))
-    if i0 >= N:
-        return
-    s0 = max(0, -i0)
-    i0 = max(0, i0)
-    n = min(sig.shape[1] - s0, N - i0)
-    if n <= 0:
-        return
-    seg = sig[:, s0:s0 + n] * gain
-    B[dst][:, i0:i0 + n] += seg
-    if verb > 0:
-        B['verb'][:, i0:i0 + n] += seg * verb
-
-
-def tt(d):
-    return np.arange(int(d * SR)) / SR
-
-
-def lp(fc, o=2):
-    return signal.butter(o, min(fc, SR * 0.45), 'low', fs=SR, output='sos')
-
-
-def hp(fc, o=2):
-    return signal.butter(o, max(fc, 10), 'high', fs=SR, output='sos')
-
-
-def bp(lo, hi, o=2):
-    lo = max(lo, 10)
-    hi = min(max(hi, lo * 1.05), SR * 0.45)
-    return signal.butter(o, [lo, hi], 'band', fs=SR, output='sos')
-
-
-def F(x, sos):
-    return signal.sosfilt(sos, x, axis=-1)
-
-
-def sweep(x, fn, kind='low', block=256):
-    y = np.zeros_like(x)
-    zi = None
-    for b in range(0, len(x), block):
-        fc = float(fn(b / SR))
-        sos = lp(fc) if kind == 'low' else hp(fc) if kind == 'high' else bp(fc * 0.7, fc * 1.35)
-        if zi is None:
-            zi = signal.sosfilt_zi(sos) * 0
-        y[b:b + block], zi = signal.sosfilt(sos, x[b:b + block], zi=zi)
-    return y
-
-
-def noise(d):
-    return rng.standard_normal(int(d * SR))
-
-
-def env_exp(d, k, a=0.002):
-    t = tt(d)
-    return np.minimum(1, t / max(a, 1e-4)) * np.exp(-t * k)
-
-
-def env_ar(d, a, r, c=2.0):
-    t = tt(d)
-    return np.minimum(np.clip(t / max(a, 1e-4), 0, 1) ** c, np.clip((d - t) / max(r, 1e-4), 0, 1) ** c)
-
-
-def sine(f, d, ph=0.0):
-    t = tt(d)
-    if np.isscalar(f):
-        return np.sin(2 * np.pi * f * t + ph)
-    return np.sin(2 * np.pi * np.cumsum(f) / SR + ph)
-
-
-def saw(f, d):
-    t = tt(d)
-    ph = f * t if np.isscalar(f) else np.cumsum(f) / SR
-    return 2 * (ph - np.floor(ph + 0.5))
-
-
-# ---------------------------------------------------------------- designed sounds
-def tick(d=0.006, f=5000, q=0.6):
-    """A dry, expensive-sounding UI tick: filtered noise, no pitch."""
-    return F(noise(d) * env_exp(d, 1200, 0.0002), bp(f * (1 - q / 2), f * (1 + q)))
-
-
-def granule(f=6000):
-    d = 0.012 + rng.random() * 0.02
-    return F(noise(d) * env_ar(d, 0.002, d * 0.8), bp(f * 0.8, f * 1.25))
-
-
-def sub_boom(d=3.0, f0=55, f1=24, k=1.4):
-    t = tt(d)
-    f = f1 + (f0 - f1) * np.exp(-t * 7)
-    return sine(f, d) * env_exp(d, k, 0.003)
-
-
-def metal(d=3.0, base=180.0, k=1.2):
-    """Inharmonic struck-metal resonance — the cinematic 'tail'."""
-    t = tt(d)
-    out = np.zeros(len(t))
-    for r, a in ((1.0, 1.0), (2.76, 0.6), (5.4, 0.45), (8.93, 0.3), (13.3, 0.2), (1.51, 0.5)):
-        out += a * np.sin(2 * np.pi * base * r * (1 + 0.002 * rng.standard_normal()) * t + rng.random() * 6) * np.exp(-t * k * (0.6 + r * 0.25))
-    return out / 3.0
-
-
-def crack(d=0.4):
-    return F(noise(d) * env_exp(d, 18, 0.0005), bp(400, 7000))
-
-
-def impact(size=1.0, dark=0.0, tail=3.5, base=150):
-    """Trailer hit: sub drop + body thud + noise crack + metallic tail."""
-    d = tail + 0.5
-    s = sub_boom(d, 62, 22, 1.1) * 1.0
-    body = F(noise(0.5) * env_exp(0.5, 9, 0.001), lp(420)) * 0.9
-    out = s
-    out[: len(body)] += body
-    c = crack(0.45) * (0.5 - dark * 0.35)
-    out[: len(c)] += c
-    m = metal(d, base * (1 - dark * 0.3), 1.0) * 0.28
-    out += F(m, lp(4000 - dark * 2500))
-    return np.tanh(out * 1.4 * size) * 0.8
-
-
-def braam(d=4.0, root=36.71, bright=1400, gain=1.0):
-    """Low, distorted brass-like swell — filtered and dirty, not synthy."""
-    acc = np.zeros(int(d * SR))
-    for mult in (1, 1.5, 2, 3):
-        for det in (-0.01, 0, 0.012):
-            acc += saw(root * mult * (1 + det), d)
-    acc /= 10
-    y = sweep(acc, lambda tc: 120 + bright * min(1, tc / 0.09) * np.exp(-max(0, tc - 0.09) * 1.3))
-    y = np.tanh(y * 3.0) * env_ar(d, 0.015, d * 0.85, 1.2)
-    return y * gain
-
-
-def whoosh(d=1.0, f0=300, f1=4000, peak=0.55, width=0.06):
-    x = noise(d)
-    y = sweep(x, lambda tc: f0 * (f1 / f0) ** min(1, tc / d), 'band')
-    t0 = tt(d)
-    return y * np.exp(-((t0 / d - peak) ** 2) / width)
-
-
-def swell(d=1.5, f0=200, f1=6000):
-    """Reverse-swell into a hit."""
-    x = noise(d)
-    y = sweep(x, lambda tc: f0 * (f1 / f0) ** ((tc / d) ** 1.8), 'band')
-    t0 = tt(d)
-    m = metal(d, 220, 0.2)[::-1] * 0.25
-    return (y + m) * (t0 / d) ** 2.6
-
-
-def servo(d=0.6, f0=180, f1=420):
-    t0 = tt(d)
-    f = f0 + (f1 - f0) * np.sin(np.pi * t0 / d / 2)
-    x = saw(f, d) + 0.4 * saw(f * 2.01, d)
-    return F(x, bp(200, 2200)) * env_ar(d, 0.05, 0.12) * 0.5
-
-
-def glitch(d=0.25):
-    """Digital stutter: gated, bit-crushed noise and a buzzing carrier."""
-    x = noise(d)
-    gate = (np.sin(2 * np.pi * (35 + rng.random() * 40) * tt(d)) > 0).astype(float)
-    crushed = np.round(x * 4) / 4
-    buzz = np.sign(np.sin(2 * np.pi * (90 + rng.random() * 80) * tt(d))) * 0.3
-    return F((crushed * 0.6 + buzz) * gate, bp(300, 9000)) * env_ar(d, 0.002, 0.03)
-
-
-def drone_bed(d, notes=(36.71, 55.0, 73.42), lpf=180):
-    t0 = tt(d)
-    x = sum(np.sin(2 * np.pi * f * (1 + 0.0008 * k) * t0 + k) * (0.6 / (k + 1)) for k, f in enumerate(notes))
-    x += F(noise(d), lp(lpf)) * 0.25
-    return x
-
-
-def tension(d, base=55.0):
-    """Dissonant cluster, heavily low-passed: dread, not tune."""
-    t0 = tt(d)
-    x = np.zeros(len(t0))
-    for r in (1.0, 1.059, 1.5, 2.12, 2.0):
-        x += saw(base * r * (1 + 0.003 * np.sin(2 * np.pi * 0.07 * t0 * r)), d)
-    x = F(x / 5, lp(380))
-    return x * (0.7 + 0.3 * np.sin(2 * np.pi * 0.11 * t0))
-
-
-def rotor(d, rate=5.6):
-    t0 = tt(d)
-    thump = (0.5 + 0.5 * np.sin(2 * np.pi * rate * t0)) ** 6
-    x = F(noise(d), lp(220)) * thump * 1.6 + F(noise(d), bp(900, 3000)) * thump * 0.08
-    return x
-
-
-def jet(d):
-    t0 = tt(d)
-    whine = sine(2400 + 120 * np.sin(2 * np.pi * 0.2 * t0), d) * 0.04 + sine(3600, d) * 0.015
-    roar = F(noise(d), bp(120, 900)) * 0.6
-    return roar + whine
-
-
-def wind(d):
-    a = sweep(noise(d), lambda tc: 260 + 500 * (0.5 + 0.5 * np.sin(tc * 0.9)), 'band')
-    b = sweep(noise(d), lambda tc: 300 + 600 * (0.5 + 0.5 * np.sin(tc * 0.7 + 1.3)), 'band')
-    return np.vstack([a, b])
-
-
-def squelch(d=0.35):
-    x = F(noise(d), bp(800, 4500)) * env_ar(d, 0.005, 0.06)
-    return x
-
-
-def heartbeat(t, g=1.0):
-    for dt, gg, f0 in ((0.0, 1.0, 64), (0.19, 0.55, 54)):
-        d = 0.7
-        t0 = tt(d)
-        f = 30 + (f0 - 30) * np.exp(-t0 * 28)
-        place('hits', sine(f, d) * env_exp(d, 7.5, 0.002), t + dt, g * gg, verb=0.2)
-
-
-# =================================================================== the film
-t_all = tt(DUR)
-# bed: sub + air, riding an intensity curve, silent through the cut
-inten = np.interp(t_all, [0, 4, 9, 16, 30, 43, 44, 72, 76.6, T['cut'] - 0.01, T['cut'], T['title'], T['title'] + 3, DUR - 2.5, DUR],
-                  [0, 0.25, 0.4, 0.55, 0.65, 0.7, 0.55, 0.65, 0.75, 1.0, 0, 0, 0.6, 0.5, 0])
-bed = drone_bed(DUR) * inten
-B['bed'] += np.vstack([bed, bed]) * 0.32
-airbed = np.vstack([F(noise(DUR), bp(2500, 11000)), F(noise(DUR), bp(2500, 11000))]) * 0.012 * inten
-B['bed'] += airbed
-# tension cluster under the indexing and the cities
-tz = tension(DUR) * np.interp(t_all, [16, 20, 30, 31, 43, 44, 70, 76, 84.4, 84.41], [0, 0.5, 0.6, 0.35, 0.45, 0.6, 0.7, 0.8, 1.0, 0], left=0, right=0)
-B['bed'] += np.vstack([tz, tz * 0.95]) * 0.22
-
-# ACT 0 — console
-hum = (sine(100, DUR) * 0.25 + F(noise(DUR), bp(80, 300)) * 0.05) * np.interp(t_all, [0.4, 1.2, T['collapse'], T['seed']], [0, 1, 1, 0], left=0, right=0)
-place('fx', hum, 0, 0.12)
-for k in C['boot']:
-    if k['ch'] != ' ':
-        place('ui', tick(0.006, 4200 + rng.random() * 2500), k['t'], 0.16, pan=(rng.random() - 0.5) * 0.3)
-place('fx', swell(T['seed'] - T['collapse'] + 0.05, 300, 9000), T['collapse'], 0.35)
-place('fx', glitch(0.18), T['collapse'], 0.25)
-place('hits', impact(0.7, dark=0.6, tail=3.0, base=110), T['seed'], 0.8, verb=0.35)
-for bt in (T['beat1'], T['beat2']):
-    heartbeat(bt, 1.1)
-# aperture: servos as the blades retract
-place('fx', servo(1.2, 140, 360), T['aperture'], 0.22, -0.3, verb=0.2)
-place('fx', servo(1.0, 160, 300), T['aperture'] + 0.25, 0.18, 0.3, verb=0.2)
-for i in range(120):
-    place('ui', tick(0.004, 7000 if i % 10 else 4200), T['dishDraw'] + (i / 120) * (T['dishDone'] - T['dishDraw']), 0.05 if i % 10 else 0.1, pan=np.sin(i / 120 * 6.28) * 0.8)
-
-# ACT 1 — growth: organic granular crackle densifying
-gs, ge = T['growStart'], T['growEnd']
-for _ in range(2400):
-    x = rng.random() ** 0.45
-    tc = gs + x * (ge - gs + 0.3)
-    k = (np.exp(3 * (tc - gs) / (ge - gs)) - 1) / (np.exp(3) - 1)
-    if rng.random() > 0.15 + 0.85 * k:
-        continue
-    place('fx', granule(2000 + rng.random() * 7000), tc, 0.05 + 0.08 * rng.random() * (0.4 + k), pan=rng.uniform(-0.9, 0.9))
-# radar sweep: a slow low whoosh per revolution
-sweep_period = 2 * np.pi / 2.4
-for i in range(int((T['substrate'] - gs) / sweep_period) + 1):
-    place('fx', whoosh(sweep_period, 120, 900, 0.5, 0.12), gs + i * sweep_period, 0.08, pan=0.0)
-place('fx', swell(1.6, 120, 5000), T['substrate'] - 1.6, 0.3)
-place('hits', impact(0.9, 0.2, 4.0, 150), T['substrate'], 0.9, verb=0.35)
-place('hits', braam(3.5, 36.71, 1100), T['substrate'], 0.35, verb=0.3)
-
-# ACT 2 — indexing: tiles as data grains, captures as shutter clicks
-for tl in C['tiles']:
-    if not tl['vis'] or tl['t'] > 23.5:
-        continue
-    if tl['z'] == 5 and rng.random() > 0.3:
-        continue
-    place('ui', granule(3000 + rng.random() * 5000), tl['t'], {3: 0.07, 4: 0.04, 5: 0.025}[tl['z']], pan=tl['pan'] * 0.8)
-
-
-def shutter(t, g=1.0, pan=0.0):
-    place('fx', tick(0.008, 3800, 0.6), t, 0.45 * g, pan)
-    place('fx', tick(0.014, 2100, 0.6), t + 0.045, 0.35 * g, pan)
-    place('fx', F(noise(0.05) * env_exp(0.05, 60), lp(500)), t, 0.25 * g, pan)
-
-
-for cp in C['caps']:
-    if cp['slow']:
-        shutter(cp['t'], 1.0, -0.3)
-        place('fx', servo(0.9, 220, 900), cp['t'] + 0.3, 0.12, -0.3, verb=0.2)
-        place('fx', whoosh(0.45, 900, 5000, 0.5), cp['t'] + 1.15, 0.16, 0.4)
-    else:
-        shutter(cp['t'], 0.5, 0.5)
-# the flurry: shutters dissolving into a roar of capture
-fl0, fl1 = T['flurry'], T['flurryEnd']
-for i in range(420):
-    u = rng.random() ** 0.6
-    tc = fl0 + u * (fl1 - fl0)
-    shutter(tc, 0.18 + 0.25 * u, rng.uniform(-0.9, 0.9))
-sw_d = fl1 - fl0
-spin = whoosh(sw_d, 150, 3500, 0.62, 0.05)
-place('fx', np.vstack([spin, np.roll(spin, 900)]), fl0, 0.35)
-place('fx', swell(1.2, 200, 8000), T['indexed'] - 1.2, 0.35)
-place('hits', impact(1.1, 0.0, 4.5, 170), T['indexed'], 1.0, verb=0.4)
-place('hits', braam(4.0, 36.71, 1800), T['indexed'], 0.4, verb=0.3)
-
-# ACT 3 — feeds: each a designed arrival, not a beep
-def feed(key, t):
-    place('ui', tick(0.01, 3000), t, 0.25, -0.5)
-    place('fx', whoosh(0.5, 2500, 400, 0.3), t - 0.05, 0.12, -0.4)
-    if key == 'air':
-        for _ in range(380):
-            place('ui', tick(0.003, 6000 + rng.random() * 3000), t + rng.random() ** 0.7 * 1.6, 0.04 + rng.random() * 0.04, rng.uniform(-0.9, 0.9))
-        place('fx', jet(1.6) * env_ar(1.6, 0.3, 1.0), t, 0.25, 0.3)
-    elif key == 'sea':
-        p = sine(820 * np.exp(-tt(2.5) * 0.06), 2.5) * env_exp(2.5, 2.0)
-        place('fx', F(p, lp(2000)), t + 0.05, 0.12, 0.2, verb=0.9)
-        place('fx', F(noise(2.0), lp(300)) * env_ar(2.0, 0.6, 1.2), t, 0.25)
-    elif key == 'mil':
-        place('fx', squelch(0.3), t + 0.05, 0.25, 0.4)
-        place('fx', F(saw(48, 1.2), bp(60, 600)) * env_ar(1.2, 0.1, 0.8), t, 0.18)
-    elif key == 'orbit':
-        place('fx', whoosh(2.6, 2600, 160, 0.4, 0.1), t + 0.2, 0.3)
-        place('hits', sub_boom(2.0, 48, 24, 2.0), t + 0.1, 0.5, verb=0.3)
-        for _ in range(40):
-            place('ui', granule(7000 + rng.random() * 4000), t + rng.random() * 2.0, 0.03, rng.uniform(-1, 1), verb=0.6)
-    elif key == 'quake':
-        for j, dt in enumerate((0.05, 0.45, 0.95)):
-            place('hits', sub_boom(1.4, 50, 22, 3.0), t + dt, 0.6 - j * 0.12, verb=0.25)
-        place('fx', F(noise(2.4), lp(90)) * env_ar(2.4, 0.2, 1.6), t, 1.0)
-    elif key == 'fire':
-        for _ in range(700):
-            x = rng.random() ** 1.3 * 2.0
-            place('fx', granule(700 + rng.random() * 4000), t + x, (1 - x / 2) * 0.1 * rng.random(), rng.uniform(-0.8, 0.8))
-        place('fx', F(noise(2.0), bp(150, 1200)) * env_ar(2.0, 0.05, 1.5), t, 0.08)
-    elif key == 'wind':
-        place('fx', wind(2.6) * env_ar(2.6, 0.5, 1.5), t, 0.45)
-    elif key == 'cable':
-        buzz = F(saw(60, 1.5) + 0.5 * saw(120.4, 1.5), bp(300, 2500)) * env_ar(1.5, 0.02, 0.9)
-        place('fx', buzz, t, 0.05, 0.2)
-        place('fx', glitch(0.2), t, 0.12, -0.2)
-
-
-for fd in C['feeds']:
-    feed(fd['key'], fd['t'])
-for t0, d in ((31.6, 1.8), (33.6, 2.2), (35.0, 2.2)):
-    place('fx', whoosh(d, 200, 2400, 0.5), t0, 0.16, rng.uniform(-0.5, 0.5))
-
-# ACT 4 — descent and the cities
-place('fx', swell(1.4, 120, 9000), T['terrain'] - 1.4, 0.45)
-place('fx', whoosh(1.2, 4000, 120, 0.7, 0.08), T['terrain'] - 1.0, 0.4)
-place('hits', impact(1.0, 0.4, 3.5, 120), T['terrain'], 0.85, verb=0.4)
-for c in C['cities']:
-    t0, t1 = c['t0'], c['t1']
-    d = t1 - t0
-    if c['slug'] != 'everest':
-        place('fx', glitch(0.22), t0 - 0.05, 0.35)
-        place('hits', impact(0.6, 0.5, 2.5, 140), t0, 0.5, verb=0.3)
-        place('fx', whoosh(0.6, 3000, 300, 0.25), t0 - 0.1, 0.25)
-    amb = F(noise(d), bp(60, 400)) * env_ar(d, 0.4, 0.4) * 0.5
-    place('fx', np.vstack([amb, np.roll(amb, 2000)]), t0, 0.25)
-    if c['slug'] == 'everest':
-        place('fx', wind(d) * env_ar(d, 0.6, 0.6), t0, 0.7)
-        # LiDAR sweep: a soft rising tone per pass
-        for i in range(int(d / (1 / 0.35 * 1.2 / 1.2)) + 1):
-            place('fx', F(sine(np.linspace(300, 1200, int(1.2 * SR)), 1.2), bp(200, 1600)) * env_ar(1.2, 0.3, 0.6), t0 + i * 2.86, 0.03, verb=0.4)
-    elif c['slug'] == 'nyc':
-        traffic = F(noise(d), bp(80, 700)) * env_ar(d, 0.8, 0.5)
-        place('fx', np.vstack([traffic, np.roll(traffic, 5000)]), t0, 0.22)
-        place('fx', rotor(d) * env_ar(d, 1.0, 1.0), t0 + 0.2, 0.3, 0.4)
-        for j in range(8):
-            place('fx', tick(0.01, 2400), t0 + 2.2 + j * 0.35, 0.18, 0.7)
-            place('fx', F(noise(0.1), bp(1500, 7000)) * env_exp(0.1, 25), t0 + 2.2 + j * 0.35, 0.05, 0.7)
-    elif c['slug'] == 'boston':
-        for j in range(4):
-            place('fx', F(noise(1.4), bp(100, 900)) * env_ar(1.4, 0.4, 0.8) * (1 + 0.3 * np.sin(2 * np.pi * 9 * tt(1.4))), t0 + 0.6 + j * 1.0, 0.1, rng.uniform(-0.7, 0.7))
-    elif c['slug'] == 'lax':
-        place('fx', jet(d) * env_ar(d, 0.8, 0.8), t0, 0.35, -0.3)
-        place('fx', whoosh(2.4, 200, 1400, 0.5, 0.1), t0 + 1.4, 0.3, 0.5)
-    elif c['slug'] == 'bragg':
-        place('fx', rotor(d, 4.6) * env_ar(d, 0.8, 0.8), t0 + 0.4, 0.25, -0.4)
-        for j in range(3):
-            place('fx', squelch(0.3), t0 + 0.8 + j * 1.3, 0.16, 0.5)
-
-# the camera wall
-wt = T['cctvWall']
-place('hits', impact(0.9, 0.3, 3.0, 160), wt, 0.8, verb=0.3)
-place('hits', braam(3.0, 36.71, 1400), wt, 0.3, verb=0.3)
-for _ in range(100):
-    tc = wt + rng.random() ** 0.8 * 0.85 + rng.random() * 0.12
-    place('fx', tick(0.012, 2200 + rng.random() * 2000), tc, 0.14, rng.uniform(-0.95, 0.95))
-    place('fx', F(noise(0.08), bp(1500, 8000)) * env_exp(0.08, 30), tc, 0.03, rng.uniform(-0.95, 0.95))
-wd = T['cctvOut'] - wt + 0.3
-place('fx', np.vstack([F(noise(wd), bp(800, 6000)), F(noise(wd), bp(800, 6000))]) * env_ar(wd, 0.4, 0.25), wt, 0.035)
-for j in range(int((T['cctvOut'] - wt - 0.8) * 7)):
-    place('ui', tick(0.006, 5200), wt + 0.8 + j / 7, 0.06, rng.uniform(-0.8, 0.8))
-place('fx', whoosh(0.6, 5000, 150, 0.7), T['cctvOut'] - 0.1, 0.4)
-place('hits', impact(0.9, 0.5, 3.0, 120), T['cctvOut'] + 0.4, 0.7, verb=0.35)
-
-# ACT 5 — saturation: rising pressure, the breach, the state
-sat0, cut = T['saturate'], T['cut']
-sd = cut - sat0
-t0s = tt(sd)
-pos = 0.45 * t0s + 0.06 * t0s ** 2
-sh = np.zeros(len(t0s))
-for k in range(9):
-    o = (k + pos) % 9
-    a = np.exp(-((o - 4.5) ** 2) / (2 * 1.8 ** 2))
-    sh += np.sin(2 * np.pi * np.cumsum(30 * 2 ** o) / SR) * a
-sh = F(sh / 9 * 2, lp(2200)) * env_ar(sd, 2.0, 0.01, 1.3)
-place('fx', sh, sat0, 0.3, verb=0.2)
-place('fx', swell(sd, 120, 9000), sat0, 0.3)
-# pulse of low hits accelerating toward the breach
-tk = sat0 + 0.5
-gap = 0.9
-while tk < T['dishBreak'] - 0.2:
-    place('hits', sub_boom(0.9, 58, 30, 4.0), tk, 0.35 + 0.35 * (tk - sat0) / sd)
-    place('fx', F(noise(0.12), bp(500, 4000)) * env_exp(0.12, 30), tk, 0.08)
-    tk += gap
-    gap = max(0.22, gap * 0.86)
-for st in C['status']:
-    for j in range(16):
-        place('ui', tick(0.005, 4500 + rng.random() * 1500), st + j * 0.026, 0.1, 0.4)
-for _ in range(300):
-    tc = T['twin'] + rng.random() ** 0.7 * (T['dishBreak'] - T['twin'])
-    place('ui', granule(5000 + rng.random() * 5000), tc, 0.025, rng.uniform(-1, 1), verb=0.3)
-db = T['dishBreak']
-place('hits', impact(1.25, 0.0, 5.0, 190), db, 1.1, verb=0.45)
-place('hits', braam(3.0, 36.71, 2600), db, 0.45, verb=0.4)
-for _ in range(200):
-    tc = db + rng.random() ** 2.2 * 1.1
-    f = 2500 + rng.random() * 7000
-    g = F(noise(0.25), bp(f * 0.97, f * 1.03)) * env_exp(0.25, 10 + rng.random() * 25)
-    place('fx', g, tc, 0.16 * (1 - (tc - db) / 1.2), rng.uniform(-1, 1), verb=0.3)
-place('hits', impact(1.0, 0.3, 4.0, 110), T['omni'], 0.8, verb=0.45)
-
-# ACT 6 — title: low bloom, the eye, the word
-ti = T['title']
-d = DUR - ti
-warm = drone_bed(d, (36.71, 55.0, 73.42, 110.0), 140) * np.interp(tt(d), [0, 0.8, 2.0, d - 3.0, d], [0, 0.4, 0.7, 0.6, 0])
-place('bed', warm, ti, 0.3)
-place('fx', swell(0.9, 400, 7000), T['eyeOpen'] - 0.9, 0.2)
-place('hits', impact(0.8, 0.6, 5.0, 90), T['eyeOpen'], 0.6, verb=0.5)
-place('fx', metal(6.0, 220, 0.5) * 0.4, T['eyeOpen'], 0.12, verb=0.7)
-for j in range(36):
-    place('ui', tick(0.006, 3500 + rng.random() * 4000), T['wordmark'] + j * 0.024, 0.07, rng.uniform(-0.4, 0.4))
-place('hits', impact(1.0, 0.4, 6.5, 100), T['wordmark'] + 0.85, 0.8, verb=0.55)
-place('hits', braam(6.0, 36.71, 900), T['wordmark'] + 0.85, 0.35, verb=0.5)
-for j in range(11):
-    place('ui', tick(0.008, 4000), T['tagline'] + j * 0.08, 0.1)
-place('fx', metal(6.0, 330, 0.45) * 0.35, T['tagline'] + 0.9, 0.1, verb=0.8)
-
-# =================================================================== reverb, mix, master
-def ir(rt=3.6, pre=0.03):
-    n = int((rt + pre) * SR)
-    t0 = np.arange(n) / SR
-    out = np.zeros((2, n))
-    for c in range(2):
-        x = rng.standard_normal(n) * np.exp(-6.9 * t0 / rt)
-        l2 = F(x, lp(2200))
-        m = np.clip(t0 / 1.2, 0, 1)
-        out[c] = x * (1 - m) + l2 * m
-        out[c, : int(pre * SR)] = 0
-    return out / np.sqrt(np.sum(out ** 2) / 2)
-
-
-R = ir()
-wet = np.vstack([signal.fftconvolve(B['verb'][c], R[c])[:N] for c in range(2)])
-dip = np.ones(N)
-for ht, depth in ((T['substrate'], 0.3), (T['indexed'], 0.25), (T['terrain'], 0.3), (T['cctvWall'], 0.4), (T['dishBreak'], 0.2), (T['wordmark'] + 0.85, 0.4)):
-    a, b, c = int((ht - 0.28) * SR), int((ht - 0.03) * SR), int((ht + 0.5) * SR)
-    dip[a:b] = np.minimum(dip[a:b], np.linspace(1, depth, b - a))
-    dip[b:c] = np.minimum(dip[b:c], np.linspace(depth, 1, c - b) ** 0.7)
-mix = (B['bed'] + B['fx'] * 0.9 + B['ui'] * 0.8) * dip + B['hits'] * 1.2 + wet * 0.3
-mix = F(mix, hp(22))
-
-
-def stutter(x, a, b, sl=0.04):
-    ia, ib, s = int(a * SR), int(b * SR), int(sl * SR)
-    src = x[:, ia:ia + s].copy()
-    for i in range(ia, ib, s):
-        n = min(s, ib - i)
-        x[:, i:i + n] = src[:, :n] * (0.9 if ((i - ia) // s) % 2 == 0 else 0.55)
-    return x
-
-
-mix = stutter(mix, cut - 0.22, cut)
-ic, it = int(cut * SR), int(T['title'] * SR)
-f = int(0.004 * SR)
-mix[:, ic - f:ic] *= np.linspace(1, 0, f)
-mix[:, ic:it] = 0
-
-# gentle glue + ceiling
-p = np.sqrt(np.convolve(np.mean(mix ** 2, axis=0), np.ones(4000) / 4000, mode='same') + 1e-12)
-thr = 10 ** (-16 / 20)
-g = np.where(p > thr, (thr * (p / thr) ** (1 / 1.8)) / p, 1.0)
-g = signal.sosfiltfilt(lp(8), g)
-mix *= g
-mix = np.tanh(mix * 1.5) / 1.5
-look = int(0.004 * SR)
-pk = np.lib.stride_tricks.sliding_window_view(np.pad(np.max(np.abs(mix), axis=0), (0, look)), look + 1).max(axis=1)[:N]
-ceil = 10 ** (-1.2 / 20)
-lg = signal.sosfiltfilt(lp(60), np.minimum(1.0, ceil / np.maximum(pk, 1e-9)))
-mix *= np.minimum(lg, 1.0)
-mix *= ceil / max(1e-9, np.max(np.abs(mix)))
-out = os.path.join(HERE, 'sfx.wav')
-wavfile.write(out, SR, (mix.T * (2 ** 31 - 1)).astype(np.int32))
-print('wrote', out, DUR, 's')

intro-sequence/data/SOURCES.md

@@ -1,62 +0,0 @@
-# Intro-sequence data snapshot: sources
-
-All files are real downloads from public keyless endpoints, fetched on **2026-10-18 between 02:24 and 02:42 UTC**. Nothing here is synthesized. The scripts only filter, convert units and round. Helper scripts are in `../tools/fetch/` (`fetch_basic.sh`, `process_basic.py`, `process_tle.py`, `process_vessels.py`, `fetch_wind.py`, `fetch_bonus.py`, `cctv_fetch.py`, `cctv_select.py`).
-
-JSON files are compact. Tabular layers use `{"cols":[...],"rows":[[...],...]}`, and each file's `cols` lists its columns. Coordinates are `[lon, lat]` in WGS84.
-
-| File | Rows | Source URL(s) | Fetched (UTC) | Notes / licence |
-|---|---|---|---|---|
-| `flights.json` | 5,550 airborne aircraft | https://opensky-network.org/api/states/all | 02:24:18 (`t`=1792290258) | OpenSky Network state vectors, anonymous tier. Airborne only (`on_ground=false`), non-null positions. `alt_m` is geometric altitude, or barometric when geometric is missing. Licence: OpenSky Network, non-commercial/research terms; credit "The OpenSky Network, https://opensky-network.org". |
-| `military.json` | 45 airborne aircraft | https://api.adsb.lol/v2/mil, plus https://opendata.adsb.fi/api/v2/mil (merged and de-duplicated by ICAO hex; adsb.lol wins) | 02:24 | Includes the `type` column (ICAO type code, e.g. C17, K35R). alt ft→m, gs kt→m/s. `country` is null because these feeds do not provide it. The count is low because the snapshot was taken at a quiet hour. A re-poll at 02:42 gave fewer (30 and 31 airborne). adsb.lol data is ODbL 1.0; adsb.fi open data. airplanes.live /v2/mil returned 403 and was not used. |
-| `tle.txt` | 15,928 satellites (3-line TLE) | https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=3le | 02:26 | CelesTrak "active" group. The FORMAT=tle request kept failing with connection resets after about 11 s through the proxy, while FORMAT=3le answered in 4 s. Element epochs range from day 264 to 293 of 2026. A descriptive User-Agent is required (as in server/providers/space/celestrak.js). Credit: CelesTrak / Dr T.S. Kelso. Data originates from 18th SDS / space-track.org. |
-| `tle_groups.json` | stations 17, starlink 10,651, gps-ops 32, geo 567, weather 72 | `gp.php?GROUP={stations,starlink,gps-ops,geo,weather}&FORMAT=tle` | 02:24–02:27 | `groups_norad`: NORAD ids per group, to join against `tle.txt` (columns 3–7 of line 1). `notable`: name→group for the first entries of each group (ISS (ZARYA), CSS (TIANHE), GOES, NOAA, GPS, …). |
-| `quakes.json` | 10,120 events | https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson | 02:24 (`t`=generated ms) | USGS ANSS ComCat. Covers 2026-09-18 02:26 to 2026-10-18 02:20 UTC, max M7.7. Sorted by time. Public domain (USGS). |
-| `fires.json` | 246,411 hotspots | https://firms.modaps.eosdis.nasa.gov/data/active_fire/suomi-npp-viirs-c2/csv/SUOMI_VIIRS_C2_Global_24h.csv (111,551); https://firms.modaps.eosdis.nasa.gov/data/active_fire/noaa-20-viirs-c2/csv/J1_VIIRS_C2_Global_24h.csv (118,991); https://firms.modaps.eosdis.nasa.gov/data/active_fire/modis-c6.1/csv/MODIS_C6_1_Global_24h.csv (15,869) | 02:24 | Rows are `[lon, lat, frp_MW, brightness_K]`. Brightness is VIIRS `bright_ti4` or MODIS `brightness`. Despite the "24h" names, the acquisitions run from 2026-10-16 00:11 to 2026-10-17 23:56 UTC. SNPP and NOAA-20 overlap, so the same fires appear twice. NASA FIRMS (LANCE); free use with credit "NASA FIRMS". |
-| `vessels.json` | 4,385 vessels | https://kystdatahuset.kystverket.no/ws/api/ais/realtime/geojson (Norway, 3,272 with a position); https://meri.digitraffic.fi/api/ais/v1/locations?from=<now-48h> + https://meri.digitraffic.fi/api/ais/v1/vessels for names (Finland/Baltic, 1,113 after de-duplication against Norway) | 02:28–02:29 | **Not global.** Coverage is the Norwegian coast and EEZ including Svalbard (Kystverket Kystdatahuset open API; NLOD licence) plus Finnish waters and the northern Baltic (Fintraffic Digitraffic; CC BY 4.0). Kystverket returns short trails, and the script uses the last vertex as the current position, checked against COG. `sog_kn`/`cog_deg` are null when AIS sends "not available". No keyless global AIS source was found. AISStream (the repo's source) needs a key, BarentsWatch needs OAuth (401), the Danish DMA host has an expired TLS certificate, and Kystverket's raw TCP NMEA feed cannot pass the HTTPS-only proxy. |
-| `wind.json` | 360×181 grid (65,160 cells) | https://noaa-gfs-bdp-pds.s3.amazonaws.com/gfs.20261017/18/atmos/gfs.t18z.pgrb2.1p00.f006 (byte ranges from its `.idx`, UGRD/VGRD at "10 m above ground") | 02:34 | NOAA GFS 1.0° run 2026-10-17 18Z, +6 h forecast, valid 2026-10-18 00Z. This is the same AWS Open Data bucket and `.idx` range approach as server/providers/wind/gfs.js, decoded with ecCodes (pip `eccodes`). The grid is re-indexed so `lo1=-180, la1=90, dx=dy=1`, row-major from north to south, m/s. The 00Z run of 10-18 was not yet published. Public domain (NOAA). |
-| `cables.json` | 1,948 polylines (732 cables) | https://www.submarinecablemap.com/api/v3/cable/cable-geo.json | 02:24 | Each LineString part is a separate polyline, rounded to 2 decimals. © TeleGeography, Submarine Cable Map (CC BY-SA 4.0); attribute TeleGeography. |
-| `coastline.json` | 1,429 lines, 60,392 vertices | https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_50m_coastline.geojson | 02:24 | Natural Earth 1:50m coastline, rounded to 2 decimals with consecutive duplicate points removed. Public domain. |
-| `borders.json` | 288 rings | https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_110m_admin_0_countries.geojson | 02:24 | Natural Earth 1:110m countries, each polygon ring as a line. Public domain. |
-| `cities.json` | 3,000 | https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_10m_populated_places_simple.geojson | 02:24 | Top 3,000 by `pop_max`. Natural Earth, public domain. |
-| `airports.json` (bonus) | 5,280 (1,176 large, 4,104 medium) | https://davidmegginson.github.io/ourairports-data/airports.csv | 02:24 | OurAirports large and medium airports. `iata` falls back to the ICAO ident when there is no IATA code. `size` is L or M. Public domain. |
-| `radio.json` (bonus) | 12,983 stations | https://de1.api.radio-browser.info/json/stations/search?has_geo_info=true&hidebroken=true&limit=100000 | 02:40 | Radio Browser community directory (the repo's radio provider). Stations with geo coordinates only. Public domain / open. |
-| `bikes.json` (bonus) | 31,176 docks | 18 GBFS `station_information.json` feeds (Citi Bike, Divvy, Bay Wheels, Capital Bikeshare via gbfs.lyft.com; Bluebikes; Toronto, Barcelona, Madrid, São Paulo, Rio, Santiago, Bogotá via publicbikesystem.net; BIXI; Ecobici; Vélib'; Indego and LA Metro via bcycle; Oslo via urbansharing) + https://api.nextbike.net/maps/nextbike-live.json (all nextbike cities, 16,926 stations) | 02:41 | Per-system counts are in `systems`. Operator open-data terms apply (mostly GBFS open licences). |
-| `launch_sites.json` (bonus) | 249 pads | https://ll.thespacedevs.com/2.3.0/pads/?limit=100&mode=list (paged) | 02:42 | Launch Library 2 (The Space Devs), sorted by total launches. Free tier. |
-| `power_plants.json` (bonus) | 34,936 plants | https://raw.githubusercontent.com/wri/global-power-plant-database/master/output_database/global_power_plant_database.csv | 02:42 | WRI Global Power Plant Database v1.3 (static, 2021). CC BY 4.0. |
-
-Not produced: **military installations**. The repo's provider queries OSM Overpass by viewport only and rejects global requests. A global Overpass pull would be slow and against that design. **Datacenters**: the repo has no keyless source.
-
-## CCTV (`../cctv/`)
-
-`cctv/cam_001.jpg` … `cam_117.jpg`: 117 real frames, each fetched 2026-10-18 02:38:46–02:39:30 UTC and cover-cropped and resized to 640×360 (JPEG q88). `cctv/index.json` gives `file, name, city, country, lat, lon, source`, plus `fetched_utc`, `orig_size` and the frame `url`.
-
-About 235 frames were downloaded from 20 sources, and every one was reviewed on contact sheets. Placeholders were rejected: Caltrans "Temporarily Unavailable", Vegvesen "Kamera er midlertidig ute av drift", Tallinn "NB! ÜHENDUS KAAMERAGA PUUDUB", Barcelona "Interrupció temporal de la imatge", and one all-black King County frame. Frames whose average hash repeats within the set were also dropped as placeholders, as were frames under 320 px wide or with luminance mean ≤25 or std ≤15.
-
-Local time at capture: daylight in Sydney, NZ, Hong Kong and Singapore; evening or night in the Americas; pre-dawn night in Europe. The Hong Kong TD frames carry the department's own privacy-mask polygons.
-
-| Source | Frames | Country | Catalog endpoint (frames from) |
-|---|---|---|---|
-| Live Traffic NSW | 12 | Australia | https://data.livetraffic.com/cameras/traffic-cam.json (webcams.transport.nsw.gov.au) |
-| NZTA Waka Kotahi | 12 | New Zealand | https://trafficnz.info/service/traffic/rest/4/cameras/all (trafficnz.info/camera/*.jpg) |
-| HK Transport Department | 10 | Hong Kong | https://static.data.gov.hk/td/traffic-snapshot-images/code/Traffic_Camera_Locations_En.xml (tdcctv.data.one.gov.hk) |
-| LTA Singapore | 6 | Singapore | https://api.data.gov.sg/v1/transport/traffic-images (the feed listed only 8 cameras) |
-| NYC DOT | 9 | USA | https://webcams.nyctmc.org/api/cameras (…/{id}/image) |
-| Caltrans CCTV | 6 | USA | https://cwwp2.dot.ca.gov/data/d{4,7,11,3}/cctv/cctvStatusD0X.json |
-| WSDOT | 6 | USA | https://data.wsdot.wa.gov/travelcenter/Cameras.json (images.wsdot.wa.gov only) |
-| King County DOT | 3 | USA | ArcGIS TRAFFICCAMERA_POINT_2029 FeatureServer (info.kingcounty.gov) |
-| TxDOT ITS | 4 | USA | https://its.txdot.gov/its/DistrictIts/GetCctvStatusListByDistrict?districtCode=… (base64 JSON snapshot; Dallas and San Antonio worked, Houston and El Paso returned null) |
-| City of Austin | 4 | USA | https://data.austintexas.gov/api/views/b4k4-adkb/rows.json (cctv.austinmobility.io) |
-| DriveBC | 6 | Canada | https://www.drivebc.ca/api/webcams/ |
-| City of Toronto RESCU | 6 | Canada | https://opendata.toronto.ca/transportation/tmc/rescucameraimages/Data/tmcearthcameras.json |
-| City of Calgary | 4 | Canada | https://data.calgary.ca/resource/k7p9-kppz.json |
-| TfL JamCams | 8 | UK | https://api.tfl.gov.uk/Place/Type/JamCam (jamcams.tfl.gov.uk S3) |
-| Fintraffic Digitraffic | 4 | Finland | https://tie.digitraffic.fi/api/weathercam/v1/stations (weathercam.digitraffic.fi) |
-| Statens vegvesen | 4 | Norway | ogckart-sn1.atlas.vegvesen.no datex_3_1:CctvSimple (kamera.atlas.vegvesen.no) |
-| City of Tallinn | 3 | Estonia | repo config/cctv_sources.tallinn.json (ristmikud.tallinn.ee) |
-| Transpordiamet Tarktee | 3 | Estonia | tarktee.transpordiamet.ee DATEX2 roadCameraLocations + roadCameraImages |
-| Via Lietuva eismoinfo | 4 | Lithuania | https://eismoinfo.lt/eismoinfo-backend/camera-info-table + layer-static-features/VKR |
-| Servei Català de Trànsit catalog | 3 | Spain | https://www.gencat.cat/transit/opendata/cameres.xml (the 3 kept frames are Barcelona IMI cameras on www.bcn.cat; SCT's own mct.gencat.cat host would not answer over HTTPS) |
-
-Skipped: Ontario 511 (now answers "Invalid Key"), DelDOT (video only), Warendorf (http-only host, and the proxy allows HTTPS only).
-
-The frames are public agency imagery, used here under each agency's open-data or terms-of-use conditions. Credit the agency named in `source`. TfL: "Powered by TfL Open Data". NSW: © Transport for NSW. HK: © HKSAR Transport Department (data.gov.hk). Singapore: LTA via data.gov.sg (Singapore Open Data Licence). NZ: © NZ Transport Agency Waka Kotahi (CC BY 4.0).

intro-sequence/index.html

@@ -1,26 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-<meta charset="utf-8" />
-<title>God's Eye View — First Light</title>
-<style>
-  @font-face { font-family: 'JetBrains Mono'; font-weight: 400; src: url(node_modules/@fontsource/jetbrains-mono/files/jetbrains-mono-latin-400-normal.woff2) format('woff2'); }
-  @font-face { font-family: 'JetBrains Mono'; font-weight: 500; src: url(node_modules/@fontsource/jetbrains-mono/files/jetbrains-mono-latin-500-normal.woff2) format('woff2'); }
-  @font-face { font-family: 'Inter'; font-weight: 200; src: url(node_modules/@fontsource/inter/files/inter-latin-200-normal.woff2) format('woff2'); }
-  @font-face { font-family: 'Inter'; font-weight: 300; src: url(node_modules/@fontsource/inter/files/inter-latin-300-normal.woff2) format('woff2'); }
-  @font-face { font-family: 'Inter'; font-weight: 500; src: url(node_modules/@fontsource/inter/files/inter-latin-500-normal.woff2) format('woff2'); }
-  html, body { margin: 0; background: #000; overflow: hidden; }
-  canvas { display: block; }
-</style>
-<script type="importmap">
-{ "imports": {
-  "three": "./node_modules/three/build/three.module.js",
-  "satellite.js": "./node_modules/satellite.js/dist/satellite.es.js"
-} }
-</script>
-</head>
-<body>
-<canvas id="c"></canvas>
-<script type="module" src="src/main.js"></script>
-</body>
-</html>

intro-sequence/package-lock.json

@@ -1,53 +0,0 @@
-{
-  "name": "gev-intro-sequence",
-  "lockfileVersion": 3,
-  "requires": true,
-  "packages": {
-    "": {
-      "name": "gev-intro-sequence",
-      "dependencies": {
-        "@fontsource/inter": "^5.1.1",
-        "@fontsource/jetbrains-mono": "^5.1.1",
-        "playwright-core": "^1.56.1",
-        "satellite.js": "^5.0.0",
-        "three": "^0.169.0"
-      }
-    },
-    "node_modules/@fontsource/inter": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/@fontsource/inter/-/inter-5.1.1.tgz",
-      "integrity": "sha512-weN3E+rq0Xb3Z93VHJ+Rc7WOQX9ETJPTAJ+gDcaMHtjft67L58sfS65rAjC5tZUXQ2FdZ/V1/sSzCwZ6v05kJw==",
-      "license": "OFL-1.1"
-    },
-    "node_modules/@fontsource/jetbrains-mono": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/@fontsource/jetbrains-mono/-/jetbrains-mono-5.1.1.tgz",
-      "integrity": "sha512-5rwvmdQQpXev4LlBX1P+7h2dguu6iwW/9Npjde4+DEq+HgpVJI/7QY8DI1NVVFdvLtXZNP+vO2L/5BQED6FUhA==",
-      "license": "OFL-1.1"
-    },
-    "node_modules/playwright-core": {
-      "version": "1.56.1",
-      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.56.1.tgz",
-      "integrity": "sha512-hutraynyn31F+Bifme+Ps9Vq59hKuUCz7H1kDOcBs+2oGguKkWTU50bBWrtz34OUWmIwpBTWDxaRPXrIXkgvmQ==",
-      "license": "Apache-2.0",
-      "bin": {
-        "playwright-core": "cli.js"
-      },
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/satellite.js": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/satellite.js/-/satellite.js-5.0.0.tgz",
-      "integrity": "sha512-ie3yiJ2LJAJIhVUKdYhgp7V0btXKAMImDjRnuaNfJGl8rjwP2HwVIh4HLFcpiXYEiYwXc5fqh5+yZqCe6KIwWw==",
-      "license": "MIT"
-    },
-    "node_modules/three": {
-      "version": "0.169.0",
-      "resolved": "https://registry.npmjs.org/three/-/three-0.169.0.tgz",
-      "integrity": "sha512-Ed906MA3dR4TS5riErd4QBsRGPcx+HBDX2O5yYE5GqJeFQTPU+M56Va/f/Oph9X7uZo3W3o4l2ZhBZ6f6qUv0w==",
-      "license": "MIT"
-    }
-  }
-}

intro-sequence/package.json

@@ -1,14 +0,0 @@
-{
-  "name": "gev-intro-sequence",
-  "private": true,
-  "type": "module",
-  "description": "God's Eye View: the intro sequence where the system comes online. Deterministic WebGL renderer + procedural score.",
-  "scripts": {},
-  "dependencies": {
-    "@fontsource/inter": "^5.1.1",
-    "@fontsource/jetbrains-mono": "^5.1.1",
-    "playwright-core": "^1.56.1",
-    "satellite.js": "^5.0.0",
-    "three": "^0.169.0"
-  }
-}

intro-sequence/src/city.js

@@ -1,916 +0,0 @@
-import * as THREE from 'three';
-import { mulberry32, clamp } from './timeline.js';
-
-// City scenes in a local ENU frame (data in metres, scene units in km;
-// three.js x = east, y = up, z = -north). One engine renders every location:
-// Esri ground, OSM buildings that rise as the scan passes, road ribbons that
-// carry modelled traffic coloured by congestion, cameras, aircraft, transit,
-// airports, restricted areas and terrain.
-
-const KM = 0.001;
-
-async function getJSON(p) {
-  try {
-    const r = await fetch(p);
-    return r.ok ? await r.json() : null;
-  } catch {
-    return null;
-  }
-}
-async function getBin(p) {
-  try {
-    const r = await fetch(p);
-    return r.ok ? await r.arrayBuffer() : null;
-  } catch {
-    return null;
-  }
-}
-function loadTex(p) {
-  return new Promise((res) =>
-    new THREE.TextureLoader().load(
-      p,
-      (t) => {
-        t.colorSpace = THREE.SRGBColorSpace;
-        t.anisotropy = 8;
-        res(t);
-      },
-      undefined,
-      () => res(null),
-    ),
-  );
-}
-
-export async function loadCity(slug) {
-  const base = `city/${slug}/`;
-  const [meta, buildings, roads, extra, cameras, air, transit, vehicles, aeroway, military, peaks, elevMeta, elev, ground] = await Promise.all([
-    getJSON(base + 'meta.json'),
-    getJSON(base + 'buildings.json'),
-    getJSON(base + 'roads.json'),
-    getJSON(base + 'extra.json'),
-    getJSON(base + 'cameras.json'),
-    getJSON(base + 'air.json'),
-    getJSON(base + 'transit.json'),
-    getJSON(base + 'vehicles.json'),
-    getJSON(base + 'aeroway.json'),
-    getJSON(base + 'military.json'),
-    getJSON(base + 'peaks.json'),
-    getJSON(base + 'elev_meta.json'),
-    getBin(base + 'elev.f32'),
-    loadTex(base + 'ground.jpg'),
-  ]);
-  return { slug, meta, buildings, roads, extra, cameras, air, transit, vehicles, aeroway, military, peaks, elevMeta, elev: elev ? new Float32Array(elev) : null, ground };
-}
-
-// ---------------------------------------------------------------- shared shader bits
-const HASH = /* glsl */ `
-  float h11(float n) { return fract(sin(n * 127.1) * 43758.5453); }
-  float h21(vec2 p) { return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453); }
-`;
-
-function congestionColor() {
-  return /* glsl */ `
-    vec3 congCol(float c) {
-      vec3 g = vec3(0.10, 1.00, 0.45);
-      vec3 y = vec3(1.00, 0.80, 0.10);
-      vec3 r = vec3(1.00, 0.16, 0.12);
-      return c < 0.5 ? mix(g, y, c * 2.0) : mix(y, r, (c - 0.5) * 2.0);
-    }
-  `;
-}
-
-// ---------------------------------------------------------------- ground
-function makeGround(d, half, elevGeo) {
-  const size = 2 * half * KM;
-  const geo = elevGeo || new THREE.PlaneGeometry(size, size, 1, 1).rotateX(-Math.PI / 2);
-  const mat = new THREE.ShaderMaterial({
-    uniforms: {
-      uTex: { value: d.ground },
-      uReveal: { value: 0 },
-      uT: { value: 0 },
-      uHalf: { value: half * KM },
-      uNight: { value: 0.55 },
-      uTerrain: { value: elevGeo ? 1 : 0 },
-      uScan: { value: -10 },
-      uFade: { value: 1 },
-    },
-    vertexShader: /* glsl */ `
-      attribute float aElev;
-      varying vec2 vUv;
-      varying vec3 vP;
-      varying float vElev;
-      varying vec3 vN;
-      void main() {
-        vUv = uv;
-        vP = position;
-        vElev = aElev;
-        vN = normal;
-        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform sampler2D uTex;
-      uniform float uReveal, uT, uHalf, uNight, uTerrain, uScan, uFade;
-      varying vec2 vUv;
-      varying vec3 vP;
-      varying float vElev;
-      varying vec3 vN;
-      void main() {
-        vec3 img = texture2D(uTex, vUv).rgb;
-        float l = dot(img, vec3(0.3, 0.59, 0.11));
-        // night grade: cool, dim, contrasty — real pixels, but the city's lights do the talking
-        vec3 night = pow(mix(vec3(l), img, 0.35), vec3(1.7)) * vec3(0.5, 0.7, 0.95) * 0.56;
-        float r = length(vP.xz) / uHalf;
-        float rev = smoothstep(uReveal, uReveal - 0.08, r);
-        // tactical grid: 100 m, brighter every km
-        vec2 g = vP.xz * 1000.0;
-        vec2 fw = fwidth(g);
-        vec2 gl = abs(fract(g / 100.0 - 0.5) - 0.5) * 100.0 / fw;
-        float grid = 1.0 - smoothstep(0.0, 1.0, min(gl.x, gl.y));
-        vec2 gk = abs(fract(g / 1000.0 - 0.5) - 0.5) * 1000.0 / fw;
-        float gridK = 1.0 - smoothstep(0.0, 1.3, min(gk.x, gk.y));
-        vec3 col = night * rev;
-        col += vec3(0.0, 0.55, 0.7) * (grid * 0.05 + gridK * 0.14) * (0.4 + 0.6 * rev);
-        // the scan front
-        float ring = exp(-pow((r - uReveal) * 60.0, 2.0));
-        col += vec3(0.2, 0.9, 1.0) * ring * 0.6;
-        if (uTerrain > 0.5) {
-          // terrain: sunlit relief, 100 m contours, a LiDAR line sweeping across
-          vec3 L = normalize(vec3(-0.5, 0.7, 0.4));
-          float sh = clamp(dot(normalize(vN), L), 0.0, 1.0);
-          vec3 tg = pow(mix(vec3(l), img, 0.5), vec3(1.35));
-          col = tg * (0.08 + 0.62 * sh) * vec3(0.62, 0.78, 1.0) * rev;
-          float ce = vElev / 100.0;
-          float cw = fwidth(ce);
-          float cont = 1.0 - smoothstep(0.0, 1.2 * cw, abs(fract(ce - 0.5) - 0.5));
-          float major = 1.0 - smoothstep(0.0, 1.2 * fwidth(vElev / 500.0), abs(fract(vElev / 500.0 - 0.5) - 0.5));
-          col += vec3(0.1, 0.8, 1.0) * (cont * 0.16 + major * 0.5) * rev;
-          float sweep = exp(-pow((vP.x - uScan) * 18.0, 2.0));
-          col += vec3(0.4, 1.0, 1.0) * sweep * 0.9;
-          col += vec3(0.0, 0.6, 0.8) * smoothstep(uScan, uScan - 3.0, vP.x) * 0.03 * step(vP.x, uScan);
-        }
-        float edge = smoothstep(1.0, 0.82, max(abs(vP.x), abs(vP.z)) / uHalf);
-        gl_FragColor = vec4(col * edge * uFade, 1.0);
-      }
-    `,
-  });
-  // the ground never writes depth: it is the base layer, and road ribbons a
-  // metre above it would otherwise lose the depth test at city distances
-  if (!elevGeo) mat.depthWrite = false;
-  const mesh = new THREE.Mesh(geo, mat);
-  mesh.renderOrder = -1;
-  return mesh;
-}
-
-function makeTerrainGeo(d, half) {
-  const n = d.elevMeta?.size || 1024;
-  const seg = 384;
-  const size = 2 * half * KM;
-  const geo = new THREE.PlaneGeometry(size, size, seg, seg).rotateX(-Math.PI / 2);
-  const pos = geo.getAttribute('position');
-  const uv = geo.getAttribute('uv');
-  const el = new Float32Array(pos.count);
-  for (let i = 0; i < pos.count; i++) {
-    const u = uv.getX(i);
-    const v = uv.getY(i);
-    const px = Math.min(n - 1, Math.max(0, Math.round(u * (n - 1))));
-    const py = Math.min(n - 1, Math.max(0, Math.round((1 - v) * (n - 1))));
-    const h = d.elev[py * n + px];
-    el[i] = h;
-    pos.setY(i, h * KM);
-  }
-  geo.setAttribute('aElev', new THREE.BufferAttribute(el, 1));
-  geo.computeVertexNormals();
-  return geo;
-}
-
-// ---------------------------------------------------------------- buildings
-function makeBuildings(list) {
-  const P = [];
-  const UV = [];
-  const A = []; // height m, edge length m, dist km, rand
-  const idx = [];
-  let vi = 0;
-  const rnd = mulberry32(5);
-  const rings = [];
-  for (const b of list) {
-    const h = Math.max(4, Math.min(560, b[0] || 10));
-    const pts = [];
-    for (let i = 2; i < b.length - 1; i += 2) pts.push([b[i], b[i + 1]]);
-    if (pts.length < 3) continue;
-    let cx = 0;
-    let cy = 0;
-    for (const p of pts) {
-      cx += p[0];
-      cy += p[1];
-    }
-    cx /= pts.length;
-    cy /= pts.length;
-    const dist = Math.hypot(cx, cy) * KM;
-    const r = rnd();
-    // walls
-    for (let i = 0; i < pts.length; i++) {
-      const [x1, y1] = pts[i];
-      const [x2, y2] = pts[(i + 1) % pts.length];
-      const L = Math.hypot(x2 - x1, y2 - y1);
-      if (L < 0.3) continue;
-      P.push(x1 * KM, 0, -y1 * KM, x2 * KM, 0, -y2 * KM, x2 * KM, h * KM, -y2 * KM, x1 * KM, h * KM, -y1 * KM);
-      UV.push(0, 0, 1, 0, 1, 1, 0, 1);
-      for (let k = 0; k < 4; k++) A.push(h, L, dist, r);
-      idx.push(vi, vi + 1, vi + 2, vi, vi + 2, vi + 3);
-      vi += 4;
-    }
-    // roof
-    const contour = pts.map((p) => new THREE.Vector2(p[0], p[1]));
-    let tris = [];
-    try {
-      tris = THREE.ShapeUtils.triangulateShape(contour, []);
-    } catch {
-      tris = [];
-    }
-    const base = vi;
-    for (const p of pts) {
-      P.push(p[0] * KM, h * KM, -p[1] * KM);
-      UV.push(-1, 1); // u < 0 marks roof
-      A.push(h, 0, dist, r);
-      vi++;
-    }
-    for (const t of tris) idx.push(base + t[0], base + t[2], base + t[1]);
-    rings.push({ pts, h, dist });
-  }
-  const geo = new THREE.BufferGeometry();
-  geo.setAttribute('position', new THREE.Float32BufferAttribute(P, 3));
-  geo.setAttribute('uv', new THREE.Float32BufferAttribute(UV, 2));
-  geo.setAttribute('aB', new THREE.Float32BufferAttribute(A, 4));
-  geo.setIndex(vi > 65535 ? new THREE.Uint32BufferAttribute(idx, 1) : new THREE.Uint16BufferAttribute(idx, 1));
-  const mat = new THREE.ShaderMaterial({
-    uniforms: { uReveal: { value: 0 }, uT: { value: 0 }, uAlpha: { value: 1 }, uTint: { value: new THREE.Color('#38e8ff') } },
-    vertexShader: /* glsl */ `
-      attribute vec4 aB;
-      uniform float uReveal;
-      varying vec2 vUv;
-      varying vec4 vB;
-      varying vec3 vW;
-      varying float vRise;
-      void main() {
-        vUv = uv;
-        vB = aB;
-        float k = clamp((uReveal - aB.z) / 0.35, 0.0, 1.0);
-        float rise = 1.0 - pow(1.0 - k, 3.0);
-        vRise = k;
-        vec3 p = position;
-        p.y *= rise;
-        vec4 wp = modelMatrix * vec4(p, 1.0);
-        vW = wp.xyz;
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      ${HASH}
-      uniform float uReveal, uT, uAlpha;
-      uniform vec3 uTint;
-      varying vec2 vUv;
-      varying vec4 vB;
-      varying vec3 vW;
-      varying float vRise;
-      void main() {
-        if (vRise <= 0.0) discard;
-        float h = vB.x;
-        float L = vB.y;
-        bool roof = vUv.x < -0.5;
-        vec3 N = normalize(cross(dFdx(vW), dFdy(vW)));
-        float lit = 0.35 + 0.65 * abs(dot(N, normalize(vec3(0.4, 0.8, 0.3))));
-        float tall = smoothstep(30.0, 250.0, h);
-        vec3 base = mix(vec3(0.010, 0.016, 0.026), vec3(0.016, 0.032, 0.05), tall) * lit;
-        vec3 col = base;
-        float fresh = exp(-max(uReveal - vB.z, 0.0) * 5.0);
-        if (roof) {
-          col = base * 1.3 + uTint * 0.02;
-        } else {
-          // floors and windows
-          float fy = vUv.y * h / 3.4;
-          float fx = vUv.x * L / 3.2;
-          vec2 cell = floor(vec2(fx, fy));
-          vec2 f = fract(vec2(fx, fy));
-          float win = step(0.25, f.x) * step(f.x, 0.8) * step(0.3, f.y) * step(f.y, 0.75);
-          float on = step(0.9, h21(cell + vB.w * 91.0));
-          float warm = h21(cell * 1.7 + 3.0);
-          vec3 wc = mix(vec3(1.0, 0.75, 0.45), vec3(0.6, 0.9, 1.0), step(0.7, warm));
-          float flick = 0.85 + 0.15 * sin(uT * 2.0 + h21(cell) * 40.0);
-          col += wc * win * on * 0.32 * flick * smoothstep(0.0, 0.1, vRise);
-          // edges: crown line, vertical corners, base
-          float wy = fwidth(vUv.y);
-          float wx = fwidth(vUv.x);
-          float crown = 1.0 - smoothstep(0.0, wy * 1.5, 1.0 - vUv.y);
-          float corner = 1.0 - smoothstep(0.0, wx * 1.5, min(vUv.x, 1.0 - vUv.x));
-          col += uTint * (crown * (0.08 + tall * 0.9) + corner * (0.03 + tall * 0.12)) * (0.6 + fresh * 2.5);
-          // the scan passing up the facade as it rises
-          col += uTint * fresh * 0.25 * smoothstep(0.2, 1.0, vUv.y);
-        }
-        gl_FragColor = vec4(col * uAlpha, 1.0);
-      }
-    `,
-  });
-  const mesh = new THREE.Mesh(geo, mat);
-  mesh.frustumCulled = false;
-  return { mesh, count: rings.length, rings };
-}
-
-// ---------------------------------------------------------------- roads + traffic
-// Congestion is modelled, not measured: road class, distance to the core, and
-// a slow per-road noise. Labelled MODELED in the HUD.
-function makeRoads(list, half, { tint = null, inside = null, scale = 1 } = {}) {
-  const W = [34, 24, 20, 16, 11, 7];
-  const P = [];
-  const A = []; // arc m, side, cong, oneway
-  const B = []; // class, rnd, width
-  const idx = [];
-  let vi = 0;
-  const rnd = mulberry32(17);
-  let segs = 0;
-  for (const r of list) {
-    const cls = r[0];
-    const one = r[1] ? 1 : 0;
-    const pts = [];
-    for (let i = 3; i < r.length - 1; i += 2) pts.push([r[i], r[i + 1]]);
-    if (pts.length < 2) continue;
-    if (inside && !inside(pts[0][0], pts[0][1])) continue;
-    const w = W[cls] ?? 6;
-    const cx = pts[Math.floor(pts.length / 2)];
-    const core = Math.exp(-Math.hypot(cx[0], cx[1]) / (half * 0.55));
-    const base = [0.55, 0.5, 0.42, 0.35, 0.22, 0.3][cls] ?? 0.3;
-    const rr = rnd();
-    const cong = clamp(base * 0.55 + core * 0.55 + (rr - 0.5) * 0.95, 0, 1);
-    let arc = 0;
-    for (let i = 0; i < pts.length - 1; i++) {
-      const [x1, y1] = pts[i];
-      const [x2, y2] = pts[i + 1];
-      const L = Math.hypot(x2 - x1, y2 - y1);
-      if (L < 0.5) continue;
-      const nx = -(y2 - y1) / L;
-      const ny = (x2 - x1) / L;
-      const hw = w / 2;
-      const y = 0.6 + cls * 0.02;
-      const v = [
-        [x1 - nx * hw, y1 - ny * hw, -1, arc],
-        [x1 + nx * hw, y1 + ny * hw, 1, arc],
-        [x2 + nx * hw, y2 + ny * hw, 1, arc + L],
-        [x2 - nx * hw, y2 - ny * hw, -1, arc + L],
-      ];
-      for (const [x, yy, s, a] of v) {
-        P.push(x * KM, y * KM, -yy * KM);
-        A.push(a, s, cong, one);
-        B.push(cls, rr, w);
-      }
-      idx.push(vi, vi + 1, vi + 2, vi, vi + 2, vi + 3);
-      vi += 4;
-      arc += L;
-      segs++;
-    }
-  }
-  const geo = new THREE.BufferGeometry();
-  geo.setAttribute('position', new THREE.Float32BufferAttribute(P, 3));
-  geo.setAttribute('aA', new THREE.Float32BufferAttribute(A, 4));
-  geo.setAttribute('aC', new THREE.Float32BufferAttribute(B, 3));
-  geo.setIndex(new THREE.Uint32BufferAttribute(idx, 1));
-  const mat = new THREE.ShaderMaterial({
-    transparent: true,
-    side: THREE.DoubleSide,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    uniforms: {
-      uT: { value: 0 },
-      uReveal: { value: 0 },
-      uHalf: { value: half * KM },
-      uAlpha: { value: 1 },
-      uTint: { value: tint ? new THREE.Color(tint) : new THREE.Color(0, 0, 0) },
-      uUseTint: { value: tint ? 1 : 0 },
-      uScale: { value: scale },
-    },
-    vertexShader: /* glsl */ `
-      attribute vec4 aA;
-      attribute vec3 aC;
-      varying vec4 vA;
-      varying vec3 vC;
-      varying float vR;
-      void main() {
-        vA = aA;
-        vC = aC;
-        vR = length(position.xz);
-        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      ${HASH}
-      ${congestionColor()}
-      uniform float uT, uReveal, uHalf, uAlpha, uUseTint, uScale;
-      uniform vec3 uTint;
-      varying vec4 vA;
-      varying vec3 vC;
-      varying float vR;
-      void main() {
-        float r = vR / uHalf;
-        float k = uReveal - r;
-        if (k < 0.0) discard;
-        float cong = vA.z;
-        float side = vA.y;
-        float dir = vA.w > 0.5 ? 1.0 : (side > 0.0 ? 1.0 : -1.0);
-        vec3 cc = mix(congCol(cong), uTint, uUseTint);
-        // ribbon cross-profile: soft edges, dark median
-        float a = abs(side);
-        float body = smoothstep(1.0, 0.7, a);
-        // cars: dashes flowing along each lane, slower and denser when jammed
-        float speed = mix(16.0, 2.5, cong) * 7.0 * uScale;
-        float spacing = mix(70.0, 14.0, cong);
-        float lane = vA.w > 0.5 ? 1.0 : smoothstep(0.05, 0.3, a) * smoothstep(0.98, 0.7, a);
-        float ph = (vA.x - dir * uT * speed) / spacing + vC.y * 13.0 + (side > 0.0 ? 0.37 : 0.0);
-        float fp = fract(ph);
-        float car = smoothstep(0.0, 0.04, fp) * (1.0 - smoothstep(0.08, 0.22, fp));
-        float present = step(0.25 + 0.5 * (1.0 - cong), h11(floor(ph) + vC.y * 77.0));
-        float head = car * present * lane;
-        vec3 carCol = dir > 0.0 ? vec3(1.0, 0.95, 0.85) : vec3(1.0, 0.25, 0.2);
-        vec3 col = cc * body * (0.2 + 0.12 * cong) + mix(cc, carCol, 0.22) * head * 1.25;
-        float fresh = exp(-k * 25.0);
-        col += cc * fresh * 0.8 * body;
-        gl_FragColor = vec4(col * uAlpha, 1.0);
-      }
-    `,
-  });
-  const mesh = new THREE.Mesh(geo, mat);
-  mesh.frustumCulled = false;
-  return { mesh, segs };
-}
-
-// ---------------------------------------------------------------- lines (generic, glowing)
-function makePolylines(lines, { color = '#38e8ff', y = 1, width = 0, alpha = 1, colors = null } = {}) {
-  const P = [];
-  const C = [];
-  const A = [];
-  for (let li = 0; li < lines.length; li++) {
-    const l = lines[li];
-    const col = new THREE.Color(colors ? colors[li] : color);
-    let arc = 0;
-    for (let i = 0; i < l.length - 1; i++) {
-      const [x1, y1, z1 = y] = l[i];
-      const [x2, y2, z2 = y] = l[i + 1];
-      const L = Math.hypot(x2 - x1, y2 - y1);
-      P.push(x1 * KM, z1 * KM, -y1 * KM, x2 * KM, z2 * KM, -y2 * KM);
-      C.push(col.r, col.g, col.b, col.r, col.g, col.b);
-      A.push(arc, arc + L);
-      arc += L;
-    }
-  }
-  const geo = new THREE.BufferGeometry();
-  geo.setAttribute('position', new THREE.Float32BufferAttribute(P, 3));
-  geo.setAttribute('color', new THREE.Float32BufferAttribute(C, 3));
-  geo.setAttribute('aArc', new THREE.Float32BufferAttribute(A, 1));
-  const mat = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    vertexColors: true,
-    uniforms: { uT: { value: 0 }, uAlpha: { value: alpha }, uDraw: { value: 1e9 }, uPulse: { value: 0 } },
-    vertexShader: /* glsl */ `
-      attribute float aArc;
-      varying float vArc;
-      varying vec3 vCol;
-      void main() { vArc = aArc; vCol = color; gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0); }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uT, uAlpha, uDraw, uPulse;
-      varying float vArc;
-      varying vec3 vCol;
-      void main() {
-        if (vArc > uDraw) discard;
-        float p = uPulse > 0.0 ? pow(fract(vArc / 900.0 - uT * 0.8), 8.0) * 2.0 : 0.0;
-        gl_FragColor = vec4(vCol * (0.7 + p) * uAlpha, 1.0);
-      }
-    `,
-  });
-  return new THREE.LineSegments(geo, mat);
-}
-
-// glowing point sprites updated from the CPU
-function makePoints(n, { size = 6, color = '#ffffff' } = {}) {
-  const geo = new THREE.BufferGeometry();
-  const pos = new Float32Array(n * 3);
-  const col = new Float32Array(n * 3);
-  const sz = new Float32Array(n).fill(1);
-  const c = new THREE.Color(color);
-  for (let i = 0; i < n; i++) col.set([c.r, c.g, c.b], i * 3);
-  geo.setAttribute('position', new THREE.BufferAttribute(pos, 3));
-  geo.setAttribute('color', new THREE.BufferAttribute(col, 3));
-  geo.setAttribute('aS', new THREE.BufferAttribute(sz, 1));
-  const mat = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    depthTest: false,
-    blending: THREE.AdditiveBlending,
-    vertexColors: true,
-    uniforms: { uSize: { value: size }, uAlpha: { value: 1 }, uPx: { value: 1 } },
-    vertexShader: /* glsl */ `
-      attribute float aS;
-      uniform float uSize, uPx;
-      varying vec3 vCol;
-      void main() { vCol = color; gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0); gl_PointSize = uSize * aS * uPx; }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uAlpha;
-      varying vec3 vCol;
-      void main() {
-        float r = length(gl_PointCoord - 0.5) * 2.0;
-        float a = smoothstep(1.0, 0.0, r);
-        float core = smoothstep(0.35, 0.0, r);
-        gl_FragColor = vec4((vCol * a * 0.8 + vec3(1.0) * core) * uAlpha, 1.0);
-      }
-    `,
-  });
-  const pts = new THREE.Points(geo, mat);
-  pts.frustumCulled = false;
-  return { pts, pos, col, sz, geo };
-}
-
-// ---------------------------------------------------------------- the engine
-export function buildCity(d, opts = {}) {
-  const half = d.meta?.half || 3500;
-  const scene = new THREE.Scene();
-  const group = new THREE.Group();
-  scene.add(group);
-  const out = { scene, d, half, labels: [], stats: {} };
-
-  const terrainGeo = d.elev ? makeTerrainGeo(d, half) : null;
-  const ground = makeGround(d, half, terrainGeo);
-  group.add(ground);
-  out.ground = ground;
-  if (d.elev) {
-    out.elevAt = (x, y) => {
-      const n = d.elevMeta?.size || 1024;
-      const px = Math.round(((x + half) / (2 * half)) * (n - 1));
-      const py = Math.round(((half - y) / (2 * half)) * (n - 1));
-      return d.elev[clamp(py, 0, n - 1) * n + clamp(px, 0, n - 1)] || 0;
-    };
-  }
-
-  if (d.buildings?.b?.length) {
-    const bl = makeBuildings(d.buildings.b);
-    group.add(bl.mesh);
-    out.buildings = bl;
-    out.stats.buildings = bl.count;
-  }
-
-  // military polygons: roads inside get the amber treatment
-  let insideMil = null;
-  if (d.military?.military?.length) {
-    const polys = d.military.military.map((m) => {
-      const pts = [];
-      for (let i = 1; i < m.length - 1; i += 2) pts.push([m[i], m[i + 1]]);
-      return { name: m[0], pts };
-    }).filter((p) => p.pts.length > 2 && p.pts.every(([x, y]) => Math.abs(x) < half * 1.35 && Math.abs(y) < half * 1.35));
-    // the reservation itself is bigger than the scene: keep what fits
-    out.milPolys = polys;
-    insideMil = (x, y) => polys.some((p) => pip(x, y, p.pts));
-  }
-
-  if (d.roads?.roads?.length) {
-    const rd = makeRoads(d.roads.roads, half);
-    group.add(rd.mesh);
-    out.roads = rd;
-    out.stats.roads = rd.segs;
-    if (insideMil) {
-      const conv = makeRoads(d.roads.roads, half, { tint: '#ffb547', inside: insideMil, scale: 0.6 });
-      conv.mesh.material.uniforms.uAlpha.value = 0.9;
-      group.add(conv.mesh);
-      out.convoy = conv;
-    }
-  }
-
-  // restricted areas: translucent curtains with scanning bands
-  if (out.milPolys) {
-    const P = [];
-    const U = [];
-    for (const p of out.milPolys) {
-      let arc = 0;
-      for (let i = 0; i < p.pts.length; i++) {
-        const [x1, y1] = p.pts[i];
-        const [x2, y2] = p.pts[(i + 1) % p.pts.length];
-        const L = Math.hypot(x2 - x1, y2 - y1);
-        const H = 0.35;
-        P.push(x1 * KM, 0, -y1 * KM, x2 * KM, 0, -y2 * KM, x2 * KM, H, -y2 * KM, x1 * KM, 0, -y1 * KM, x2 * KM, H, -y2 * KM, x1 * KM, H, -y1 * KM);
-        U.push(arc, 0, arc + L, 0, arc + L, 1, arc, 0, arc + L, 1, arc, 1);
-        arc += L;
-      }
-    }
-    const g = new THREE.BufferGeometry();
-    g.setAttribute('position', new THREE.Float32BufferAttribute(P, 3));
-    g.setAttribute('uv', new THREE.Float32BufferAttribute(U, 2));
-    const m = new THREE.ShaderMaterial({
-      transparent: true,
-      depthWrite: false,
-      side: THREE.DoubleSide,
-      blending: THREE.AdditiveBlending,
-      uniforms: { uT: { value: 0 }, uAlpha: { value: 0 } },
-      vertexShader: `varying vec2 vUv; void main(){ vUv = uv; gl_Position = projectionMatrix * modelViewMatrix * vec4(position,1.0); }`,
-      fragmentShader: /* glsl */ `
-        uniform float uT, uAlpha;
-        varying vec2 vUv;
-        void main() {
-          float band = pow(fract(vUv.y * 6.0 - uT * 0.6), 6.0);
-          float top = 1.0 - smoothstep(0.0, 0.04, 1.0 - vUv.y);
-          float fade = 1.0 - vUv.y;
-          float hatch = step(0.5, fract((vUv.x / 60.0 + vUv.y * 4.0)));
-          vec3 c = vec3(1.0, 0.62, 0.18) * (fade * 0.10 + band * 0.25 + top * 0.8 + hatch * fade * 0.03);
-          gl_FragColor = vec4(c * uAlpha, 1.0);
-        }
-      `,
-    });
-    out.curtain = new THREE.Mesh(g, m);
-    out.curtain.frustumCulled = false;
-    group.add(out.curtain);
-  }
-
-  // airport: runways, approach strobes, taxiways
-  const aw = d.aeroway || d.military;
-  if (aw?.runways?.length) {
-    const P = [];
-    const U = [];
-    const strobes = [];
-    for (const rw of aw.runways) {
-      const w = Math.max(30, rw[0] || 45);
-      const pts = [];
-      for (let i = 2; i < rw.length - 1; i += 2) pts.push([rw[i], rw[i + 1]]);
-      if (pts.length < 2) continue;
-      const [x1, y1] = pts[0];
-      const [x2, y2] = pts[pts.length - 1];
-      const L = Math.hypot(x2 - x1, y2 - y1);
-      const ux = (x2 - x1) / L;
-      const uy = (y2 - y1) / L;
-      const nx = -uy * w / 2;
-      const ny = ux * w / 2;
-      const q = [[x1 - nx, y1 - ny, 0, 0], [x1 + nx, y1 + ny, 1, 0], [x2 + nx, y2 + ny, 1, L], [x1 - nx, y1 - ny, 0, 0], [x2 + nx, y2 + ny, 1, L], [x2 - nx, y2 - ny, 0, L]];
-      for (const [x, y, s, a] of q) {
-        P.push(x * KM, 0.0012, -y * KM);
-        U.push(s, a);
-      }
-      // approach lighting: 900 m of strobes off each threshold
-      for (const [sx, sy, dx, dy] of [[x1, y1, -ux, -uy], [x2, y2, ux, uy]]) {
-        for (let k = 1; k <= 30; k++) strobes.push([sx + dx * k * 30, sy + dy * k * 30, k]);
-      }
-      out.labels.push({ kind: 'runway', x: (x1 + x2) / 2, y: (y1 + y2) / 2, text: `RWY ${rw[1] || ''}`.trim() });
-    }
-    const g = new THREE.BufferGeometry();
-    g.setAttribute('position', new THREE.Float32BufferAttribute(P, 3));
-    g.setAttribute('uv', new THREE.Float32BufferAttribute(U, 2));
-    const m = new THREE.ShaderMaterial({
-      transparent: true,
-      side: THREE.DoubleSide,
-      depthWrite: false,
-      blending: THREE.AdditiveBlending,
-      uniforms: { uT: { value: 0 }, uAlpha: { value: 1 } },
-      vertexShader: `varying vec2 vUv; void main(){ vUv = uv; gl_Position = projectionMatrix * modelViewMatrix * vec4(position,1.0); }`,
-      fragmentShader: /* glsl */ `
-        uniform float uT, uAlpha;
-        varying vec2 vUv;
-        void main() {
-          float edge = 1.0 - smoothstep(0.0, 0.06, min(vUv.x, 1.0 - vUv.x));
-          float cl = (1.0 - smoothstep(0.0, 0.03, abs(vUv.x - 0.5))) * step(0.5, fract(vUv.y / 60.0));
-          vec3 c = vec3(0.9, 0.95, 1.0) * (edge * 0.9 + cl * 0.7) + vec3(0.05, 0.08, 0.1);
-          gl_FragColor = vec4(c * uAlpha, 1.0);
-        }
-      `,
-    });
-    out.runways = new THREE.Mesh(g, m);
-    out.runways.frustumCulled = false;
-    group.add(out.runways);
-    out.strobes = makePoints(strobes.length, { size: 5, color: '#ffffff' });
-    strobes.forEach((s, i) => out.strobes.pos.set([s[0] * KM, 0.004, -s[1] * KM], i * 3));
-    out.strobeK = strobes.map((s) => s[2]);
-    out.strobes.geo.getAttribute('position').needsUpdate = true;
-    group.add(out.strobes.pts);
-  }
-  if (aw?.taxiways?.length) {
-    const lines = aw.taxiways.map((t) => {
-      const pts = [];
-      for (let i = 0; i < t.length - 1; i += 2) pts.push([t[i], t[i + 1], 1.2]);
-      return pts;
-    });
-    out.taxi = makePolylines(lines, { color: '#ffc04a', alpha: 0.75 });
-    group.add(out.taxi);
-  }
-  if (aw?.aprons?.length) {
-    const lines = aw.aprons.map((t) => {
-      const pts = [];
-      for (let i = 0; i < t.length - 1; i += 2) pts.push([t[i], t[i + 1], 1]);
-      if (pts.length) pts.push(pts[0]);
-      return pts;
-    });
-    out.aprons = makePolylines(lines, { color: '#2fd0ff', alpha: 0.4 });
-    group.add(out.aprons);
-  }
-
-  // transit: route-coloured lines with pulses, vehicles riding them
-  if (d.transit?.shapes?.length) {
-    const lines = [];
-    const colors = [];
-    out.shapes = [];
-    for (const s of d.transit.shapes) {
-      const rid = s[0];
-      const route = d.transit.routes[rid] || {};
-      const pts = [];
-      for (let i = 1; i < s.length - 1; i += 2) pts.push([s[i], s[i + 1], route.type === 3 ? 2 : 6]);
-      const col = route.color ? (route.color.startsWith('#') ? route.color : '#' + route.color) : '#38e8ff';
-      // subway and rail glow brighter than buses
-      lines.push(pts);
-      colors.push(route.type === 3 ? new THREE.Color(col).multiplyScalar(0.45).getStyle() : col);
-      out.shapes.push({ rid, pts, type: route.type });
-    }
-    out.transitLines = makePolylines(lines, { colors });
-    out.transitLines.material.uniforms.uPulse.value = 1;
-    group.add(out.transitLines);
-    out.stats.routes = Object.keys(d.transit.routes).length;
-  }
-  if (d.vehicles?.v?.length) {
-    const vs = d.vehicles.v;
-    out.veh = makePoints(vs.length, { size: 9 });
-    vs.forEach((v, i) => {
-      const r = d.transit?.routes?.[v[4]];
-      const c = new THREE.Color(r?.color ? (r.color.startsWith('#') ? r.color : '#' + r.color) : '#ffffff');
-      out.veh.col.set([c.r, c.g, c.b], i * 3);
-      out.veh.sz[i] = r?.type === 3 ? 0.65 : 1.2;
-    });
-    out.veh.geo.getAttribute('color').needsUpdate = true;
-    out.veh.geo.getAttribute('aS').needsUpdate = true;
-    group.add(out.veh.pts);
-    out.stats.vehicles = vs.length;
-  }
-
-  // street cameras: beams + base rings
-  if (d.cameras?.length) {
-    const lines = d.cameras.map((c) => [[c[0], c[1], 0], [c[0], c[1], 90]]);
-    out.camBeams = makePolylines(lines, { color: '#eafcff', alpha: 0.5 });
-    group.add(out.camBeams);
-    out.camPts = makePoints(d.cameras.length, { size: 7, color: '#bff6ff' });
-    d.cameras.forEach((c, i) => out.camPts.pos.set([c[0] * KM, 0.09, -c[1] * KM], i * 3));
-    out.camPts.geo.getAttribute('position').needsUpdate = true;
-    group.add(out.camPts.pts);
-    out.stats.cameras = d.cameras.length;
-  }
-
-  // aircraft (real ADS-B): glyphs + real track history
-  if (d.air?.a?.length) {
-    const a = d.air.a;
-    out.airPts = makePoints(a.length + 8, { size: 8, color: '#ffffff' });
-    a.forEach((p, i) => {
-      const heli = p[8] === 'A7' || /^(H|EC|AS|S7|S9|B06|B407|B429|A109|A119|A139|R44|R66|EC|H1|H6)/.test(p[7] || '');
-      const mil = /^(RCH|CNV|PAT|EVAC|TOPCT|HKY|SPAR|SAM)/.test(p[6] || '');
-      const c = new THREE.Color(heli ? '#7dffd6' : mil ? '#ffb547' : '#ffffff');
-      out.airPts.col.set([c.r, c.g, c.b], i * 3);
-      p.heli = heli;
-    });
-    out.airPts.geo.getAttribute('color').needsUpdate = true;
-    group.add(out.airPts.pts);
-    const tr = d.air.tracks || {};
-    const tl = Object.values(tr).filter((t) => t.length > 1).map((t) => t.map((q) => [q[0], q[1], q[2] * 1.5]));
-    if (tl.length) {
-      out.airTracks = makePolylines(tl.map((t) => t.filter((q) => Math.abs(q[0]) < half * 1.2 && Math.abs(q[1]) < half * 1.2)).filter((t) => t.length > 1), { color: '#9fe8ff', alpha: 0.3 });
-      group.add(out.airTracks);
-    }
-    out.stats.aircraft = a.length;
-    out.stats.helis = a.filter((p) => p.heli).length;
-  }
-
-  // modelled extras (labelled MODELED): helicopter tours, circuits
-  out.modeled = [];
-  if (opts.modeled) for (const m of opts.modeled) out.modeled.push(m);
-  if (out.modeled.length) {
-    out.modPts = makePoints(out.modeled.length, { size: 9, color: '#7dffd6' });
-    out.modeled.forEach((m, i) => {
-      const c = new THREE.Color(m.color || '#7dffd6');
-      out.modPts.col.set([c.r, c.g, c.b], i * 3);
-    });
-    out.modPts.geo.getAttribute('color').needsUpdate = true;
-    group.add(out.modPts.pts);
-    out.modTrails = makePolylines(out.modeled.map((m) => m.path.concat([m.path[0]])), { color: '#7dffd6', alpha: 0.25 });
-    out.modTrails.material.vertexColors = true;
-    group.add(out.modTrails);
-  }
-
-  // ---------------------------------------------------------------- per-frame
-  out.update = (lt, k, pxScale = 1) => {
-    // lt: seconds into this scene; k: 0..1 progress
-    const reveal = Math.min(1.6, 0.22 + lt * 1.05);
-    ground.material.uniforms.uReveal.value = reveal * 1.3;
-    ground.material.uniforms.uT.value = lt;
-    if (d.elev) ground.material.uniforms.uScan.value = -half * KM + ((lt * 0.35) % 1.2) * 2.4 * half * KM;
-    if (out.buildings) {
-      out.buildings.mesh.material.uniforms.uReveal.value = reveal * half * KM * 0.9;
-      out.buildings.mesh.material.uniforms.uT.value = lt;
-    }
-    if (out.roads) {
-      out.roads.mesh.material.uniforms.uReveal.value = reveal * 1.1;
-      out.roads.mesh.material.uniforms.uT.value = lt;
-    }
-    if (out.convoy) {
-      out.convoy.mesh.material.uniforms.uReveal.value = reveal * 1.1;
-      out.convoy.mesh.material.uniforms.uT.value = lt;
-    }
-    if (out.curtain) {
-      out.curtain.material.uniforms.uT.value = lt;
-      out.curtain.material.uniforms.uAlpha.value = clamp((lt - 0.6) * 1.5);
-    }
-    if (out.runways) out.runways.material.uniforms.uAlpha.value = clamp(lt * 1.2);
-    if (out.strobes) {
-      // the "rabbit": a pulse running in toward each threshold, twice a second
-      const ph = (lt * 2) % 1;
-      out.strobeK.forEach((kk, i) => (out.strobes.sz[i] = Math.abs((1 - kk / 30) - ph) < 0.05 ? 2.2 : 0.35));
-      out.strobes.geo.getAttribute('aS').needsUpdate = true;
-      out.strobes.pts.material.uniforms.uPx.value = pxScale;
-    }
-    if (out.transitLines) {
-      out.transitLines.material.uniforms.uT.value = lt;
-      out.transitLines.material.uniforms.uDraw.value = lt * 9000;
-    }
-    if (out.veh) {
-      const vs = d.vehicles.v;
-      for (let i = 0; i < vs.length; i++) {
-        const v = vs[i];
-        // dead-reckon along the reported bearing at the reported speed, sped up
-        const sp = Math.max(4, v[3] || 8) * 6;
-        const b = ((v[2] || 0) * Math.PI) / 180;
-        const x = v[0] + Math.sin(b) * sp * lt;
-        const y = v[1] + Math.cos(b) * sp * lt;
-        out.veh.pos.set([x * KM, 0.012, -y * KM], i * 3);
-      }
-      out.veh.geo.getAttribute('position').needsUpdate = true;
-      out.veh.pts.material.uniforms.uAlpha.value = clamp((lt - 0.8) * 2);
-      out.veh.pts.material.uniforms.uPx.value = pxScale;
-    }
-    if (out.camPts) {
-      out.camPts.pts.material.uniforms.uAlpha.value = clamp((lt - 0.9) * 2);
-      out.camBeams.material.uniforms.uAlpha.value = clamp((lt - 0.9) * 2) * 0.45;
-      out.camPts.pts.material.uniforms.uPx.value = pxScale;
-    }
-    if (out.airPts) {
-      const a = d.air.a;
-      for (let i = 0; i < a.length; i++) {
-        const p = a[i];
-        const b = ((p[3] || 0) * Math.PI) / 180;
-        const sp = (p[4] || 0) * 3;
-        const x = p[0] + Math.sin(b) * sp * lt;
-        const y = p[1] + Math.cos(b) * sp * lt;
-        const z = Math.max(0, (p[2] || 0) + (p[5] || 0) * 3 * lt) * 1.5;
-        out.airPts.pos.set([x * KM, z * KM + 0.004, -y * KM], i * 3);
-        p.now = [x, y, z];
-      }
-      out.airPts.geo.getAttribute('position').needsUpdate = true;
-      out.airPts.pts.material.uniforms.uAlpha.value = clamp((lt - 0.5) * 2);
-      out.airPts.pts.material.uniforms.uPx.value = pxScale;
-      if (out.airTracks) out.airTracks.material.uniforms.uAlpha.value = clamp((lt - 0.5) * 2) * 0.4;
-    }
-    if (out.modPts) {
-      out.modeled.forEach((m, i) => {
-        const p = pathAt(m.path, (lt * m.speed + m.phase) % 1);
-        out.modPts.pos.set([p[0] * KM, p[2] * KM, -p[1] * KM], i * 3);
-        m.now = p;
-      });
-      out.modPts.geo.getAttribute('position').needsUpdate = true;
-      out.modPts.pts.material.uniforms.uAlpha.value = clamp((lt - 0.7) * 2);
-      out.modPts.pts.material.uniforms.uPx.value = pxScale;
-      out.modTrails.material.uniforms.uAlpha.value = clamp((lt - 0.7) * 2) * 0.22;
-    }
-    if (out.taxi) out.taxi.material.uniforms.uAlpha.value = clamp((lt - 0.4) * 2) * 0.7;
-    if (out.aprons) out.aprons.material.uniforms.uAlpha.value = clamp((lt - 0.4) * 2) * 0.35;
-  };
-  return out;
-}
-
-function pathAt(path, f) {
-  const n = path.length;
-  const x = f * n;
-  const i = Math.floor(x) % n;
-  const j = (i + 1) % n;
-  const u = x - Math.floor(x);
-  const a = path[i];
-  const b = path[j];
-  return [a[0] + (b[0] - a[0]) * u, a[1] + (b[1] - a[1]) * u, (a[2] ?? 0) + ((b[2] ?? 0) - (a[2] ?? 0)) * u];
-}
-
-function pip(x, y, pts) {
-  let c = false;
-  for (let i = 0, j = pts.length - 1; i < pts.length; j = i++) {
-    const [xi, yi] = pts[i];
-    const [xj, yj] = pts[j];
-    if (yi > y !== yj > y && x < ((xj - xi) * (y - yi)) / (yj - yi) + xi) c = !c;
-  }
-  return c;
-}
-
-// An ellipse/loop path in metres, for modelled helicopter tours and circuits.
-export function loopPath(cx, cy, rx, ry, alt, rot = 0, n = 48) {
-  const out = [];
-  for (let i = 0; i < n; i++) {
-    const a = (i / n) * Math.PI * 2;
-    const x = Math.cos(a) * rx;
-    const y = Math.sin(a) * ry;
-    out.push([cx + x * Math.cos(rot) - y * Math.sin(rot), cy + x * Math.sin(rot) + y * Math.cos(rot), alt]);
-  }
-  return out;
-}

intro-sequence/src/geo.js

@@ -1,72 +0,0 @@
-// Geodesy for the film. Convention (matches the globe shader):
-//   x = cos(lat) cos(lon), y = sin(lat), z = -cos(lat) sin(lon)   (Y up, radius 1)
-export const D2R = Math.PI / 180;
-export const R2D = 180 / Math.PI;
-export const EARTH_KM = 6371;
-
-export function llToVec(lon, lat, r = 1, out = [0, 0, 0]) {
-  const la = lat * D2R;
-  const lo = lon * D2R;
-  const c = Math.cos(la);
-  out[0] = r * c * Math.cos(lo);
-  out[1] = r * Math.sin(la);
-  out[2] = -r * c * Math.sin(lo);
-  return out;
-}
-
-export function vecToLL(x, y, z) {
-  const r = Math.hypot(x, y, z);
-  return [Math.atan2(-z, x) * R2D, Math.asin(y / r) * R2D];
-}
-
-// Central angle in radians between two lon/lat points.
-export function angDist(lon1, lat1, lon2, lat2) {
-  const p1 = lat1 * D2R;
-  const p2 = lat2 * D2R;
-  const dp = p2 - p1;
-  const dl = (lon2 - lon1) * D2R;
-  const a = Math.sin(dp / 2) ** 2 + Math.cos(p1) * Math.cos(p2) * Math.sin(dl / 2) ** 2;
-  return 2 * Math.asin(Math.min(1, Math.sqrt(a)));
-}
-
-// Destination point given start, bearing (deg) and central angle (rad).
-export function destination(lon, lat, bearingDeg, ang) {
-  const p1 = lat * D2R;
-  const l1 = lon * D2R;
-  const b = bearingDeg * D2R;
-  const p2 = Math.asin(Math.sin(p1) * Math.cos(ang) + Math.cos(p1) * Math.sin(ang) * Math.cos(b));
-  const l2 = l1 + Math.atan2(Math.sin(b) * Math.sin(ang) * Math.cos(p1), Math.cos(ang) - Math.sin(p1) * Math.sin(p2));
-  return [((l2 * R2D + 540) % 360) - 180, p2 * R2D];
-}
-
-export function bearing(lon1, lat1, lon2, lat2) {
-  const p1 = lat1 * D2R;
-  const p2 = lat2 * D2R;
-  const dl = (lon2 - lon1) * D2R;
-  const y = Math.sin(dl) * Math.cos(p2);
-  const x = Math.cos(p1) * Math.sin(p2) - Math.sin(p1) * Math.cos(p2) * Math.cos(dl);
-  return (Math.atan2(y, x) * R2D + 360) % 360;
-}
-
-// Subsolar point (lon, lat) for a JS Date — NOAA low-precision solar position.
-export function subsolar(date) {
-  const jd = date.getTime() / 86400000 + 2440587.5;
-  const n = jd - 2451545.0;
-  const L = (280.46 + 0.9856474 * n) % 360;
-  const g = ((357.528 + 0.9856003 * n) % 360) * D2R;
-  const lambda = (L + 1.915 * Math.sin(g) + 0.02 * Math.sin(2 * g)) * D2R;
-  const eps = (23.439 - 0.0000004 * n) * D2R;
-  const decl = Math.asin(Math.sin(eps) * Math.sin(lambda));
-  const ra = Math.atan2(Math.cos(eps) * Math.sin(lambda), Math.cos(lambda));
-  const gmst = (280.46061837 + 360.98564736629 * n) % 360;
-  let lon = ra * R2D - gmst;
-  lon = ((lon + 540) % 360) - 180;
-  return [lon, decl * R2D];
-}
-
-export function fmtLat(lat, dp = 4) {
-  return `${Math.abs(lat).toFixed(dp)}°${lat >= 0 ? 'N' : 'S'}`;
-}
-export function fmtLon(lon, dp = 4) {
-  return `${Math.abs(lon).toFixed(dp)}°${lon >= 0 ? 'E' : 'W'}`;
-}

intro-sequence/src/globe.js

@@ -1,296 +0,0 @@
-import * as THREE from 'three';
-
-// The planet: one shader that walks the surface through every state the film
-// needs — dark substrate, the growth front lighting up night cities, quadtree
-// tiles indexing in with rising resolution, then the lit, living Earth.
-
-const COMMON = /* glsl */ `
-  #define PI 3.141592653589793
-  float hash3(vec3 p) {
-    p = fract(p * 0.3183099 + vec3(0.71, 0.113, 0.419));
-    p *= 17.0;
-    return fract(p.x * p.y * p.z * (p.x + p.y + p.z));
-  }
-  vec3 llDir(float lon, float lat) {
-    float c = cos(lat);
-    return vec3(c * cos(lon), sin(lat), -c * sin(lon));
-  }
-  // u wraps 1 -> 0 at the antimeridian; take derivatives from whichever of u or
-  // u+0.5 is continuous here so mip selection doesn't spike into a seam line
-  void seamGrad(vec2 uv, out vec2 gx, out vec2 gy) {
-    vec2 a = uv;
-    vec2 b = vec2(fract(uv.x + 0.5), uv.y);
-    vec2 ax = dFdx(a), ay = dFdy(a), bx = dFdx(b), by = dFdy(b);
-    gx = vec2(abs(ax.x) < abs(bx.x) ? ax.x : bx.x, ax.y);
-    gy = vec2(abs(ay.x) < abs(by.x) ? ay.x : by.x, ay.y);
-  }
-`;
-
-export function createGlobe({ dayTex, nightTex, cloudTex }) {
-  const uniforms = {
-    uDay: { value: dayTex },
-    uNight: { value: nightTex },
-    uTime: { value: 0 },
-    uSeed: { value: new THREE.Vector3(1, 0, 0) },
-    uSun: { value: new THREE.Vector3(1, 0, 0) },
-    uFront: { value: -1 }, // growth front, radians from the seed
-    uHolo: { value: 0 }, // substrate grid visibility
-    uLights: { value: 0 }, // night-light "neurons" during growth
-    uWave: { value: new THREE.Vector3(1e3, 1e3, 1e3) },
-    uWaveSpread: { value: 2.6 },
-    uImagery: { value: 0 }, // forces imagery fully on (after indexing)
-    uLit: { value: 0 }, // 0 = flat imagery, 1 = real sun lighting
-    uTexel: { value: new THREE.Vector2(1 / 8192, 1 / 4096) },
-    uGridAmt: { value: 1 },
-    uTint: { value: 0 }, // cyan analysis tint on the whole surface
-    uDim: { value: 1 },
-  };
-
-  const mat = new THREE.ShaderMaterial({
-    uniforms,
-    vertexShader: /* glsl */ `
-      varying vec3 vObj;
-      varying vec3 vWorldN;
-      varying vec3 vView;
-      void main() {
-        vObj = position;
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vWorldN = normalize(mat3(modelMatrix) * position);
-        vView = normalize(cameraPosition - wp.xyz);
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      ${COMMON}
-      uniform sampler2D uDay, uNight;
-      uniform float uTime, uFront, uHolo, uLights, uWaveSpread, uImagery, uLit, uGridAmt, uTint, uDim;
-      uniform vec3 uSeed, uSun, uWave;
-      uniform vec2 uTexel;
-      varying vec3 vObj;
-      varying vec3 vWorldN;
-      varying vec3 vView;
-
-      float mercY(float lat) {
-        lat = clamp(lat, -1.4844, 1.4844);
-        return 0.5 - log(tan(PI * 0.25 + lat * 0.5)) / (2.0 * PI);
-      }
-      float invMercY(float my) {
-        return atan(sinh(PI * (1.0 - 2.0 * my)));
-      }
-
-      // Per-level quadtree state at this fragment.
-      // returns x = phase since this tile revealed, y = edge line (0..1)
-      vec2 tileState(float z, float waveT, vec2 uv, float my, float jitter) {
-        float n = exp2(z);
-        vec2 tc = vec2(uv.x * n, my * n);
-        vec2 ti = floor(tc);
-        vec2 f = fract(tc);
-        float lonc = ((ti.x + 0.5) / n) * 2.0 * PI - PI;
-        float latc = invMercY((ti.y + 0.5) / n);
-        float d = acos(clamp(dot(uSeed, llDir(lonc, latc)), -1.0, 1.0));
-        float tRev = waveT + d / PI * uWaveSpread + hash3(vec3(ti, z)) * jitter;
-        vec2 tcb = vec2(fract(uv.x + 0.5) * n, tc.y);
-        vec2 w = vec2(min(fwidth(tc.x), fwidth(tcb.x)), fwidth(tc.y));
-        vec2 e = min(f, 1.0 - f) / max(w, vec2(1e-5));
-        float line = 1.0 - smoothstep(0.0, 1.25, min(e.x, e.y));
-        return vec2(uTime - tRev, line);
-      }
-
-      void main() {
-        vec3 n = normalize(vObj);
-        float lat = asin(clamp(n.y, -1.0, 1.0));
-        float lon = atan(-n.z, n.x);
-        vec2 uv = vec2(lon / (2.0 * PI) + 0.5, lat / PI + 0.5);
-        float my = mercY(lat);
-        vec3 N = normalize(vWorldN);
-        vec3 V = normalize(vView);
-        float dSeed = acos(clamp(dot(n, uSeed), -1.0, 1.0));
-
-        // ---------- substrate (pre-imagery)
-        float gLat = abs(fract(lat * 180.0 / PI / 10.0 + 0.5) - 0.5) * 10.0;
-        float gLon = abs(fract(lon * 180.0 / PI / 10.0 + 0.5) - 0.5) * 10.0 * cos(lat);
-        float gw = fwidth(lat * 180.0 / PI) * 1.2;
-        float gwl = min(fwidth(lon), fwidth(mod(lon + 2.0 * PI, 2.0 * PI))) * 180.0 / PI * 1.2 * cos(lat);
-        float grid = max(1.0 - smoothstep(0.0, gw, gLat), 1.0 - smoothstep(0.0, max(gwl, 1e-4), gLon));
-        float behind = smoothstep(uFront + 0.02, uFront - 0.10, dSeed);
-        vec3 base = vec3(0.0018, 0.0035, 0.006) * behind;
-        vec3 holo = base + vec3(0.0, 0.35, 0.42) * grid * 0.10 * uHolo * behind;
-        // growth front: a thin bright ring with a soft wake
-        float ring = exp(-pow((dSeed - uFront) * 55.0, 2.0)) * step(0.0, uFront);
-        float wake = exp(-max(uFront - dSeed, 0.0) * 6.0) * behind;
-        holo += vec3(0.1, 0.85, 1.0) * (ring * 0.55 + wake * 0.035) * uHolo;
-
-        // real night lights, colonised by the front: the "neurons"
-        vec2 gx, gy;
-        seamGrad(uv, gx, gy);
-        float nl = textureGrad(uNight, uv, gx, gy).r;
-        float nlc = pow(max(nl - 0.06, 0.0) * 1.07, 1.7);
-        float fresh = exp(-max(uFront - dSeed, 0.0) * 3.0);
-        holo += mix(vec3(0.55, 0.95, 1.0), vec3(1.0), fresh) * nlc * (1.2 + fresh * 2.5) * behind * uLights;
-
-        // ---------- quadtree indexing
-        vec2 s3 = tileState(3.0, uWave.x, uv, my, 0.35);
-        vec2 s4 = tileState(4.0, uWave.y, uv, my, 0.30);
-        vec2 s5 = tileState(5.0, uWave.z, uv, my, 0.25);
-        float reveal = max(smoothstep(0.05, 0.42, s3.x), uImagery);
-        // resolution climbs as each finer wave passes
-        float bias = mix(4.5, 0.0, max(smoothstep(0.0, 0.5, s5.x), uImagery));
-        bias = min(bias, mix(4.5, 2.2, smoothstep(0.0, 0.5, s4.x)));
-        float bs = exp2(bias);
-        vec2 bgx = gx * bs, bgy = gy * bs;
-        vec3 day = textureGrad(uDay, uv, bgx, bgy).rgb;
-
-        // analysis edges (luminance gradient) — only while a tile is being indexed
-        float ph0 = s3.x;
-        float edgeAmt0 = step(0.0, ph0) * exp(-max(ph0 - 0.1, 0.0) * 2.2) * (1.0 - uImagery);
-        float edge = 0.0;
-        if (edgeAmt0 > 0.002) {
-          float l0 = dot(textureGrad(uDay, uv + vec2(uTexel.x, 0.0), bgx, bgy).rgb, vec3(0.3, 0.59, 0.11));
-          float l1 = dot(textureGrad(uDay, uv - vec2(uTexel.x, 0.0), bgx, bgy).rgb, vec3(0.3, 0.59, 0.11));
-          float l2 = dot(textureGrad(uDay, uv + vec2(0.0, uTexel.y), bgx, bgy).rgb, vec3(0.3, 0.59, 0.11));
-          float l3 = dot(textureGrad(uDay, uv - vec2(0.0, uTexel.y), bgx, bgy).rgb, vec3(0.3, 0.59, 0.11));
-          edge = clamp(length(vec2(l0 - l1, l2 - l3)) * 9.0, 0.0, 1.0);
-        }
-
-        // ---------- lighting
-        float sd = dot(n, uSun);
-        float dayF = smoothstep(-0.10, 0.20, sd);
-        vec3 lit = day * (0.035 + 1.25 * pow(max(sd, 0.0), 0.75)) * dayF + day * 0.012;
-        float ocean = smoothstep(0.015, 0.06, day.b - day.r) * (1.0 - smoothstep(0.08, 0.25, dot(day, vec3(0.33))));
-        vec3 Hh = normalize(normalize(mat3(1.0) * uSun) + V);
-        float graze = smoothstep(0.15, 0.5, dot(N, V));
-        float spec = (pow(max(dot(N, Hh), 0.0), 240.0) * 0.4 + pow(max(dot(N, Hh), 0.0), 30.0) * 0.03) * ocean * dayF * graze;
-        vec3 cityGlow = vec3(1.0, 0.72, 0.42) * pow(nl, 1.9) * 1.6 * (1.0 - dayF);
-        float fres = pow(1.0 - max(dot(N, V), 0.0), 3.0);
-        vec3 haze = vec3(0.25, 0.5, 1.0) * fres * (0.15 + 0.85 * dayF) * 0.7;
-        vec3 earthLit = lit + vec3(1.0, 0.92, 0.8) * spec + cityGlow + haze;
-        vec3 earthFlat = day * 0.6;
-        vec3 earth = mix(earthFlat, earthLit, uLit);
-
-        // reveal treatment: flash, edges, then settle
-        float ph = s3.x;
-        float flash = step(0.0, ph) * exp(-max(ph, 0.0) * 9.0);
-        float edgeAmt = step(0.0, ph) * exp(-max(ph - 0.1, 0.0) * 2.2) * (1.0 - uImagery);
-        vec3 surf = mix(holo, earth, reveal);
-        surf += vec3(0.0, 0.8, 1.0) * edge * edgeAmt * 0.9;
-        surf += vec3(0.6, 0.95, 1.0) * flash * 0.10 * (1.0 - uImagery);
-        surf = mix(surf, vec3(dot(surf, vec3(0.3, 0.59, 0.11))) * vec3(0.4, 1.0, 1.15), uTint);
-
-        // tile edges: faint before, bright at their own wave, then gone
-        float g3 = s3.y * (step(ph, 0.0) * 0.18 * uHolo * behind + step(0.0, ph) * exp(-max(ph, 0.0) * 1.6) * 1.3);
-        float g4 = s4.y * step(0.0, s4.x) * exp(-max(s4.x, 0.0) * 2.0) * 0.9;
-        float g5 = s5.y * step(0.0, s5.x) * exp(-max(s5.x, 0.0) * 2.6) * 0.7;
-        surf += vec3(0.25, 0.9, 1.0) * max(g3, max(g4, g5)) * uGridAmt;
-
-        gl_FragColor = vec4(surf * uDim, 1.0);
-      }
-    `,
-  });
-
-  const geo = new THREE.SphereGeometry(1, 384, 192);
-  const mesh = new THREE.Mesh(geo, mat);
-
-  // Clouds — real GIBS-derived opacity, lit by the same sun.
-  const cloudU = {
-    uClouds: { value: cloudTex },
-    uSun: uniforms.uSun,
-    uAmt: { value: 0 },
-    uTime: uniforms.uTime,
-  };
-  const cloudMat = new THREE.ShaderMaterial({
-    uniforms: cloudU,
-    transparent: true,
-    depthWrite: false,
-    vertexShader: /* glsl */ `
-      varying vec3 vObj;
-      varying vec3 vN;
-      varying vec3 vView;
-      void main() {
-        vObj = position;
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vN = normalize(mat3(modelMatrix) * position);
-        vView = normalize(cameraPosition - wp.xyz);
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      #define PI 3.141592653589793
-      uniform sampler2D uClouds;
-      uniform vec3 uSun;
-      uniform float uAmt, uTime;
-      varying vec3 vObj;
-      varying vec3 vN;
-      varying vec3 vView;
-      void main() {
-        vec3 n = normalize(vObj);
-        float lat = asin(clamp(n.y, -1.0, 1.0));
-        float lon = atan(-n.z, n.x) - uTime * 0.0015;
-        vec2 uv = vec2(fract(lon / (2.0 * PI) + 0.5), lat / PI + 0.5);
-        vec2 ua = uv, ub = vec2(fract(uv.x + 0.5), uv.y);
-        vec2 ax = dFdx(ua), ay = dFdy(ua), bx = dFdx(ub), by = dFdy(ub);
-        vec2 gx = vec2(abs(ax.x) < abs(bx.x) ? ax.x : bx.x, ax.y);
-        vec2 gy = vec2(abs(ay.x) < abs(by.x) ? ay.x : by.x, ay.y);
-        float c = textureGrad(uClouds, uv, gx, gy).r;
-        c = smoothstep(0.08, 0.85, c);
-        float sd = dot(n, uSun);
-        float dayF = smoothstep(-0.12, 0.25, sd);
-        vec3 col = vec3(1.0, 0.98, 0.95) * (0.02 + 1.1 * dayF * (0.35 + 0.65 * max(sd, 0.0)));
-        float edge = pow(1.0 - max(dot(normalize(vN), normalize(vView)), 0.0), 2.0);
-        gl_FragColor = vec4(col, c * uAmt * (0.92 - edge * 0.4));
-      }
-    `,
-  });
-  const clouds = new THREE.Mesh(new THREE.SphereGeometry(1.0065, 256, 128), cloudMat);
-
-  // Atmosphere shell — limb glow, warm-to-blue at the terminator.
-  const atmoU = { uSun: uniforms.uSun, uAmt: { value: 0 }, uCyan: { value: 0 } };
-  const atmoMat = new THREE.ShaderMaterial({
-    uniforms: atmoU,
-    side: THREE.BackSide,
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    vertexShader: /* glsl */ `
-      varying vec3 vN;
-      varying vec3 vWP;
-      void main() {
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vWP = wp.xyz;
-        vN = normalize(mat3(modelMatrix) * position);
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform vec3 uSun;
-      uniform float uAmt, uCyan;
-      varying vec3 vN;
-      varying vec3 vWP;
-      void main() {
-        vec3 V = normalize(cameraPosition - vWP);
-        vec3 N = normalize(vN);
-        // distance of this view ray from the planet centre, in radii
-        vec3 ro = cameraPosition;
-        vec3 rd = -V;
-        float b = dot(ro, rd);
-        float h = length(ro - b * rd);
-        float shell = 1.065;
-        float t = clamp((shell - h) / (shell - 1.0), 0.0, 1.0);
-        float glow = pow(t, 2.6) * (1.0 - smoothstep(0.985, 1.0, t) * 0.0);
-        if (h < 1.0) glow *= 0.0;
-        // light side vs dark side of the limb
-        vec3 limbP = normalize(ro + rd * b);
-        float sd = dot(limbP, uSun);
-        float lit = smoothstep(-0.35, 0.4, sd);
-        vec3 col = mix(vec3(0.02, 0.08, 0.14), vec3(0.35, 0.62, 1.0), lit);
-        col += vec3(1.0, 0.45, 0.2) * exp(-pow(sd * 6.0, 2.0)) * 0.35;
-        col = mix(col, vec3(0.1, 0.9, 1.0) * 0.8, uCyan);
-        gl_FragColor = vec4(col * glow * uAmt * 1.05, 1.0);
-      }
-    `,
-  });
-  const atmo = new THREE.Mesh(new THREE.SphereGeometry(1.065, 128, 64), atmoMat);
-
-  const group = new THREE.Group();
-  group.add(mesh, clouds, atmo);
-  return { group, mesh, uniforms, cloudU, atmoU };
-}

intro-sequence/src/layers.js

@@ -1,512 +0,0 @@
-import * as THREE from 'three';
-import { llToVec, D2R, EARTH_KM } from './geo.js';
-import { mulberry32 } from './timeline.js';
-
-// Point and particle layers for the live feeds. Every layer exposes
-// `update(t, ctx)`; reveal timing and motion are pure functions of film time.
-
-const GC = /* glsl */ `
-  vec3 llDir(float lon, float lat) {
-    float c = cos(lat);
-    return vec3(c * cos(lon), sin(lat), -c * sin(lon));
-  }
-  // great-circle destination: start (lon,lat) rad, bearing rad, distance rad
-  vec2 gcDest(vec2 ll, float b, float d) {
-    float lat2 = asin(sin(ll.y) * cos(d) + cos(ll.y) * sin(d) * cos(b));
-    float lon2 = ll.x + atan(sin(b) * sin(d) * cos(ll.y), cos(d) - sin(ll.y) * sin(lat2));
-    return vec2(lon2, lat2);
-  }
-`;
-
-// Moving contacts (aircraft, vessels): heads as points, trails as segments.
-// rows: [lon, lat, alt_m, track_deg, vel_ms]
-export function createMovers(rows, { color, trailColor, size = 2.2, altScale = 8, trail = 0.010, revealSpread = 1.4, seed = 1, gain = 1 }) {
-  const rnd = mulberry32(seed);
-  const n = rows.length;
-  const ll = new Float32Array(n * 2);
-  const hv = new Float32Array(n * 2);
-  const alt = new Float32Array(n);
-  const rr = new Float32Array(n);
-  rows.forEach((r, i) => {
-    ll[i * 2] = r[0] * D2R;
-    ll[i * 2 + 1] = r[1] * D2R;
-    hv[i * 2] = (r[3] || 0) * D2R;
-    hv[i * 2 + 1] = (r[4] || 0) / (EARTH_KM * 1000); // rad per second
-    alt[i] = 1 + ((r[2] || 0) / (EARTH_KM * 1000)) * altScale + 0.0015;
-    rr[i] = rnd();
-  });
-
-  const uniforms = {
-    uSim: { value: 0 }, // simulated seconds since the feed went live
-    uReveal: { value: 0 }, // 0..1 + spread
-    uAlpha: { value: 0 },
-    uGain: { value: gain },
-    uPx: { value: 1 },
-    uSize: { value: size },
-    uTrail: { value: trail },
-    uColor: { value: new THREE.Color(color) },
-    uTrailColor: { value: new THREE.Color(trailColor || color) },
-    uSpread: { value: revealSpread },
-  };
-  const vs = (isTrail) => /* glsl */ `
-    ${GC}
-    attribute vec2 aLL;
-    attribute vec2 aHV;
-    attribute float aAlt;
-    attribute float aR;
-    ${isTrail ? 'attribute float aEnd;' : ''}
-    uniform float uSim, uReveal, uPx, uSize, uTrail, uSpread;
-    varying float vA;
-    varying float vFacing;
-    void main() {
-      float d = aHV.y * uSim;
-      ${isTrail ? 'd -= aEnd * max(uTrail, aHV.y * 40.0);' : ''}
-      vec2 p = gcDest(aLL, aHV.x, d);
-      vec3 pos = llDir(p.x, p.y) * aAlt;
-      vec4 wp = modelMatrix * vec4(pos, 1.0);
-      vFacing = dot(normalize(wp.xyz), normalize(cameraPosition - wp.xyz));
-      float rv = clamp((uReveal - aR * uSpread) * 6.0, 0.0, 1.0);
-      vA = rv ${isTrail ? '* (1.0 - aEnd)' : ''};
-      gl_Position = projectionMatrix * viewMatrix * wp;
-      ${isTrail ? '' : 'gl_PointSize = uSize * uPx * (1.0 + 2.5 * exp(-(uReveal - aR * uSpread) * 10.0) * step(0.0, uReveal - aR * uSpread));'}
-    }
-  `;
-  const fs = (isTrail) => /* glsl */ `
-    uniform vec3 ${isTrail ? 'uTrailColor' : 'uColor'};
-    uniform float uAlpha, uGain;
-    varying float vA;
-    varying float vFacing;
-    void main() {
-      float back = smoothstep(-0.02, 0.12, vFacing);
-      ${
-        isTrail
-          ? 'gl_FragColor = vec4(uTrailColor * vA * uAlpha * uGain * back * 0.9, 1.0);'
-          : `vec2 c = gl_PointCoord - 0.5;
-             float r = length(c);
-             float disc = smoothstep(0.5, 0.15, r);
-             if (vA * back <= 0.001) discard;
-             gl_FragColor = vec4(uColor * disc * vA * uAlpha * uGain * back, 1.0);`
-      }
-    }
-  `;
-  const mk = (isTrail) =>
-    new THREE.ShaderMaterial({
-      uniforms,
-      transparent: true,
-      depthWrite: false,
-      blending: THREE.AdditiveBlending,
-      vertexShader: vs(isTrail),
-      fragmentShader: fs(isTrail),
-    });
-
-  const gp = new THREE.BufferGeometry();
-  gp.setAttribute('position', new THREE.BufferAttribute(new Float32Array(n * 3), 3));
-  gp.setAttribute('aLL', new THREE.BufferAttribute(ll, 2));
-  gp.setAttribute('aHV', new THREE.BufferAttribute(hv, 2));
-  gp.setAttribute('aAlt', new THREE.BufferAttribute(alt, 1));
-  gp.setAttribute('aR', new THREE.BufferAttribute(rr, 1));
-  gp.boundingSphere = new THREE.Sphere(new THREE.Vector3(), 2);
-  const heads = new THREE.Points(gp, mk(false));
-
-  // trails: two vertices per contact, aEnd 0 (head) / 1 (tail)
-  const dup = (src, k) => {
-    const out = new Float32Array(src.length * 2);
-    for (let i = 0; i < src.length / k; i++)
-      for (let j = 0; j < k; j++) {
-        out[i * 2 * k + j] = src[i * k + j];
-        out[i * 2 * k + k + j] = src[i * k + j];
-      }
-    return out;
-  };
-  const gt = new THREE.BufferGeometry();
-  gt.setAttribute('position', new THREE.BufferAttribute(new Float32Array(n * 6), 3));
-  gt.setAttribute('aLL', new THREE.BufferAttribute(dup(ll, 2), 2));
-  gt.setAttribute('aHV', new THREE.BufferAttribute(dup(hv, 2), 2));
-  gt.setAttribute('aAlt', new THREE.BufferAttribute(dup(alt, 1), 1));
-  gt.setAttribute('aR', new THREE.BufferAttribute(dup(rr, 1), 1));
-  const ends = new Float32Array(n * 2);
-  for (let i = 0; i < n; i++) ends[i * 2 + 1] = 1;
-  gt.setAttribute('aEnd', new THREE.BufferAttribute(ends, 1));
-  gt.boundingSphere = new THREE.Sphere(new THREE.Vector3(), 2);
-  const trails = new THREE.LineSegments(gt, mk(true));
-
-  const group = new THREE.Group();
-  group.add(trails, heads);
-  return { group, uniforms, count: n };
-}
-
-// Static or pulsing point events (fires, quakes, cities, cameras).
-// rows: [lon, lat, weight]
-export function createEvents(rows, { color, size = 3, mode = 'flicker', r = 1.002, spread = 1.2, seed = 3, gain = 1, weightFn = (w) => w }) {
-  const rnd = mulberry32(seed);
-  const n = rows.length;
-  const pos = new Float32Array(n * 3);
-  const w = new Float32Array(n);
-  const rr = new Float32Array(n);
-  const v = [0, 0, 0];
-  rows.forEach((row, i) => {
-    llToVec(row[0], row[1], r, v);
-    pos.set(v, i * 3);
-    w[i] = weightFn(row[2] ?? 1);
-    rr[i] = rnd();
-  });
-  const uniforms = {
-    uT: { value: 0 },
-    uReveal: { value: 0 },
-    uAlpha: { value: 0 },
-    uGain: { value: gain },
-    uPx: { value: 1 },
-    uSize: { value: size },
-    uColor: { value: new THREE.Color(color) },
-    uSpread: { value: spread },
-  };
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.BufferAttribute(pos, 3));
-  g.setAttribute('aW', new THREE.BufferAttribute(w, 1));
-  g.setAttribute('aR', new THREE.BufferAttribute(rr, 1));
-  const ringMode = mode === 'ring';
-  const m = new THREE.ShaderMaterial({
-    uniforms,
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    vertexShader: /* glsl */ `
-      attribute float aW;
-      attribute float aR;
-      uniform float uT, uReveal, uPx, uSize, uSpread;
-      varying float vA;
-      varying float vPh;
-      varying float vW;
-      varying float vFacing;
-      void main() {
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vFacing = dot(normalize(wp.xyz), normalize(cameraPosition - wp.xyz));
-        float k = uReveal - aR * uSpread;
-        vA = clamp(k * 5.0, 0.0, 1.0);
-        vPh = k;
-        vW = aW;
-        gl_Position = projectionMatrix * viewMatrix * wp;
-        ${
-          ringMode
-            ? 'gl_PointSize = uSize * uPx * (0.6 + aW) * 9.0;'
-            : 'gl_PointSize = uSize * uPx * (0.7 + aW) * (1.0 + 3.0 * exp(-max(k, 0.0) * 8.0) * step(0.0, k));'
-        }
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform vec3 uColor;
-      uniform float uT, uAlpha, uGain;
-      varying float vA;
-      varying float vPh;
-      varying float vW;
-      varying float vFacing;
-      void main() {
-        float back = smoothstep(-0.02, 0.12, vFacing);
-        if (vA * back <= 0.001) discard;
-        vec2 c = gl_PointCoord - 0.5;
-        float r = length(c) * 2.0;
-        ${
-          ringMode
-            ? `float ph = fract(vPh * 0.55 + vW * 0.37);
-               float ringR = ph;
-               float ring = exp(-pow((r - ringR) * 14.0, 2.0)) * (1.0 - ph);
-               float core = smoothstep(0.16, 0.0, r);
-               float first = exp(-max(vPh, 0.0) * 3.0);
-               float a = ring * (0.8 + first) + core * 1.4;`
-            : `float flick = 0.65 + 0.35 * sin(uT * (9.0 + vW * 7.0) + vW * 91.0);
-               float a = smoothstep(1.0, 0.0, r) * smoothstep(1.0, 0.25, r) * 1.5 * flick;`
-        }
-        gl_FragColor = vec4(uColor * a * vA * uAlpha * uGain * back, 1.0);
-      }
-    `,
-  });
-  const pts = new THREE.Points(g, m);
-  return { group: pts, uniforms, count: n };
-}
-
-// Satellites: positions arrive from satellite.js each frame.
-export function createSatellites(count, { color = '#d6d0ff', size = 1.7 } = {}) {
-  const pos = new Float32Array(count * 3);
-  const rr = new Float32Array(count);
-  const kind = new Float32Array(count);
-  const rnd = mulberry32(11);
-  for (let i = 0; i < count; i++) rr[i] = rnd();
-  const g = new THREE.BufferGeometry();
-  const pa = new THREE.BufferAttribute(pos, 3);
-  pa.setUsage(THREE.DynamicDrawUsage);
-  g.setAttribute('position', pa);
-  g.setAttribute('aR', new THREE.BufferAttribute(rr, 1));
-  g.setAttribute('aK', new THREE.BufferAttribute(kind, 1));
-  g.boundingSphere = new THREE.Sphere(new THREE.Vector3(), 20);
-  const uniforms = {
-    uReveal: { value: 0 },
-    uAlpha: { value: 0 },
-    uPx: { value: 1 },
-    uSize: { value: size },
-    uColor: { value: new THREE.Color(color) },
-  };
-  const m = new THREE.ShaderMaterial({
-    uniforms,
-    transparent: true,
-    depthWrite: false,
-    depthTest: true,
-    blending: THREE.AdditiveBlending,
-    vertexShader: /* glsl */ `
-      attribute float aR;
-      attribute float aK;
-      uniform float uReveal, uPx, uSize;
-      varying float vA;
-      varying float vK;
-      void main() {
-        float k = uReveal - aR * 1.3;
-        vA = clamp(k * 5.0, 0.0, 1.0);
-        vK = aK;
-        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
-        float big = aK > 0.5 ? 1.6 : 1.0;
-        gl_PointSize = uSize * uPx * big * (1.0 + 3.0 * exp(-max(k, 0.0) * 9.0) * step(0.0, k));
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform vec3 uColor;
-      uniform float uAlpha;
-      varying float vA;
-      varying float vK;
-      void main() {
-        if (vA <= 0.001) discard;
-        float r = length(gl_PointCoord - 0.5) * 2.0;
-        float a = smoothstep(1.0, 0.1, r);
-        vec3 c = mix(uColor * 0.75, vec3(0.75, 1.0, 1.0) * 1.4, step(0.5, vK));
-        gl_FragColor = vec4(c * a * vA * uAlpha, 1.0);
-      }
-    `,
-  });
-  const pts = new THREE.Points(g, m);
-  return { group: pts, uniforms, positions: pos, attr: pa, kind, count };
-}
-
-// Orbit rings for a handful of notable objects.
-export function createOrbitRings(paths, color = '#bfb6ff') {
-  const pos = [];
-  const u = [];
-  for (const path of paths) {
-    for (let i = 0; i < path.length - 1; i++) {
-      pos.push(...path[i], ...path[i + 1]);
-      u.push(i / (path.length - 1), (i + 1) / (path.length - 1));
-    }
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
-  g.setAttribute('aU', new THREE.Float32BufferAttribute(u, 1));
-  const m = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    uniforms: { uDraw: { value: 0 }, uAlpha: { value: 0 }, uColor: { value: new THREE.Color(color) } },
-    vertexShader: /* glsl */ `
-      attribute float aU;
-      varying float vU;
-      varying float vNear;
-      void main() {
-        vU = aU;
-        vec4 mv = modelViewMatrix * vec4(position, 1.0);
-        vNear = smoothstep(1.2, 4.5, -mv.z);
-        gl_Position = projectionMatrix * mv;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uDraw, uAlpha;
-      uniform vec3 uColor;
-      varying float vU;
-      varying float vNear;
-      void main() {
-        float k = uDraw - vU;
-        if (k < 0.0) discard;
-        float hot = exp(-k * 30.0) * 2.0;
-        gl_FragColor = vec4((uColor * 0.4 + vec3(1.0) * hot) * uAlpha * vNear, 1.0);
-      }
-    `,
-  });
-  return new THREE.LineSegments(g, m);
-}
-
-// Wind: particles advected through a real GFS u/v field, drawn as fading trails.
-export function createWind(field, { count = 7000, trailLen = 14, seed = 21 } = {}) {
-  const { nx, ny, lo1, la1, dx, dy, u, v } = field;
-  const sample = (lon, lat) => {
-    let x = (((lon - lo1) % 360) + 360) % 360 / dx;
-    let y = (la1 - lat) / dy;
-    const x0 = Math.floor(x);
-    const y0 = Math.max(0, Math.min(ny - 2, Math.floor(y)));
-    const fx = x - x0;
-    const fy = Math.max(0, Math.min(1, y - y0));
-    const i00 = y0 * nx + (x0 % nx);
-    const i10 = y0 * nx + ((x0 + 1) % nx);
-    const i01 = (y0 + 1) * nx + (x0 % nx);
-    const i11 = (y0 + 1) * nx + ((x0 + 1) % nx);
-    const bl = (arr) => (arr[i00] * (1 - fx) + arr[i10] * fx) * (1 - fy) + (arr[i01] * (1 - fx) + arr[i11] * fx) * fy;
-    return [bl(u), bl(v)];
-  };
-  const SEGS = trailLen - 1;
-  const pos = new Float32Array(count * SEGS * 2 * 3);
-  const alpha = new Float32Array(count * SEGS * 2);
-  const g = new THREE.BufferGeometry();
-  const pa = new THREE.BufferAttribute(pos, 3);
-  pa.setUsage(THREE.DynamicDrawUsage);
-  const aa = new THREE.BufferAttribute(alpha, 1);
-  aa.setUsage(THREE.DynamicDrawUsage);
-  g.setAttribute('position', pa);
-  g.setAttribute('aA', aa);
-  g.boundingSphere = new THREE.Sphere(new THREE.Vector3(), 2);
-  const uniforms = { uAlpha: { value: 0 }, uColor: { value: new THREE.Color('#a6dcff') } };
-  const m = new THREE.ShaderMaterial({
-    uniforms,
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    vertexShader: /* glsl */ `
-      attribute float aA;
-      varying float vA;
-      varying float vFacing;
-      void main() {
-        vA = aA;
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vFacing = dot(normalize(wp.xyz), normalize(cameraPosition - wp.xyz));
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform vec3 uColor;
-      uniform float uAlpha;
-      varying float vA;
-      varying float vFacing;
-      void main() {
-        float back = smoothstep(0.0, 0.15, vFacing);
-        gl_FragColor = vec4(uColor * vA * uAlpha * back, 1.0);
-      }
-    `,
-  });
-  const lines = new THREE.LineSegments(g, m);
-
-  // particle state
-  const P = { lon: new Float32Array(count), lat: new Float32Array(count), age: new Float32Array(count), life: new Float32Array(count), spd: new Float32Array(count) };
-  const hist = new Float32Array(count * trailLen * 2);
-  let rnd;
-  let simT = -1;
-  const spawn = (i) => {
-    const lon = rnd() * 360 - 180;
-    const lat = Math.asin(rnd() * 2 - 1) * (180 / Math.PI) * 0.92;
-    P.lon[i] = lon;
-    P.lat[i] = lat;
-    P.age[i] = 0;
-    P.life[i] = 1.2 + rnd() * 2.2;
-    for (let k = 0; k < trailLen; k++) {
-      hist[(i * trailLen + k) * 2] = lon;
-      hist[(i * trailLen + k) * 2 + 1] = lat;
-    }
-  };
-  const reset = () => {
-    rnd = mulberry32(seed);
-    for (let i = 0; i < count; i++) {
-      spawn(i);
-      P.age[i] = rnd() * P.life[i];
-    }
-    simT = 0;
-  };
-  const DT = 1 / 30;
-  const K = 0.85; // deg per (m/s) per second of film — visual speed
-  const step = () => {
-    for (let i = 0; i < count; i++) {
-      const [uu, vv] = sample(P.lon[i], P.lat[i]);
-      P.spd[i] = Math.hypot(uu, vv);
-      const c = Math.max(0.2, Math.cos(P.lat[i] * D2R));
-      P.lon[i] += (uu * K * DT) / c;
-      P.lat[i] += vv * K * DT;
-      if (P.lon[i] > 180) P.lon[i] -= 360;
-      if (P.lon[i] < -180) P.lon[i] += 360;
-      P.age[i] += DT;
-      const base = i * trailLen * 2;
-      hist.copyWithin(base + 2, base, base + (trailLen - 1) * 2);
-      hist[base] = P.lon[i];
-      hist[base + 1] = P.lat[i];
-      if (P.age[i] > P.life[i] || Math.abs(P.lat[i]) > 84) spawn(i);
-    }
-    simT += DT;
-  };
-  const a = [0, 0, 0];
-  const b = [0, 0, 0];
-  function update(tSinceStart) {
-    if (simT < 0 || tSinceStart < simT - 1e-6) reset();
-    while (simT < tSinceStart) step();
-    let o = 0;
-    let q = 0;
-    for (let i = 0; i < count; i++) {
-      const base = i * trailLen * 2;
-      const life = P.age[i] / P.life[i];
-      const fade = Math.min(1, life * 5) * Math.min(1, (1 - life) * 4);
-      const sp = Math.min(1, P.spd[i] / 18);
-      for (let k = 0; k < SEGS; k++) {
-        const lo1 = hist[base + k * 2];
-        const la1 = hist[base + k * 2 + 1];
-        const lo2 = hist[base + (k + 1) * 2];
-        const la2 = hist[base + (k + 1) * 2 + 1];
-        const jump = Math.abs(lo2 - lo1) > 90;
-        llToVec(lo1, la1, 1.004, a);
-        llToVec(jump ? lo1 : lo2, jump ? la1 : la2, 1.004, b);
-        pos[o++] = a[0]; pos[o++] = a[1]; pos[o++] = a[2];
-        pos[o++] = b[0]; pos[o++] = b[1]; pos[o++] = b[2];
-        const f1 = (1 - k / SEGS) * fade * (0.25 + sp);
-        const f2 = (1 - (k + 1) / SEGS) * fade * (0.25 + sp);
-        alpha[q++] = f1;
-        alpha[q++] = f2;
-      }
-    }
-    pa.needsUpdate = true;
-    aa.needsUpdate = true;
-  }
-  return { group: lines, uniforms, update, count };
-}
-
-export function createStars(n = 2600, seed = 77) {
-  const rnd = mulberry32(seed);
-  const pos = new Float32Array(n * 3);
-  const mag = new Float32Array(n);
-  for (let i = 0; i < n; i++) {
-    const z = rnd() * 2 - 1;
-    const t = rnd() * Math.PI * 2;
-    const s = Math.sqrt(1 - z * z);
-    pos[i * 3] = 400 * s * Math.cos(t);
-    pos[i * 3 + 1] = 400 * z;
-    pos[i * 3 + 2] = 400 * s * Math.sin(t);
-    mag[i] = Math.pow(rnd(), 6);
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.BufferAttribute(pos, 3));
-  g.setAttribute('aM', new THREE.BufferAttribute(mag, 1));
-  const uniforms = { uAlpha: { value: 0 }, uPx: { value: 1 } };
-  const m = new THREE.ShaderMaterial({
-    uniforms,
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    vertexShader: /* glsl */ `
-      attribute float aM;
-      uniform float uPx;
-      varying float vM;
-      void main() {
-        vM = aM;
-        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
-        gl_PointSize = (1.0 + aM * 2.2) * uPx;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uAlpha;
-      varying float vM;
-      void main() {
-        float r = length(gl_PointCoord - 0.5) * 2.0;
-        float a = smoothstep(1.0, 0.0, r);
-        gl_FragColor = vec4(vec3(0.8, 0.9, 1.0) * a * (0.12 + vM * 0.9) * uAlpha, 1.0);
-      }
-    `,
-  });
-  return { group: new THREE.Points(g, m), uniforms };
-}

intro-sequence/src/lines.js

@@ -1,323 +0,0 @@
-import * as THREE from 'three';
-import { llToVec, angDist, destination, bearing, D2R } from './geo.js';
-import { mulberry32 } from './timeline.js';
-
-// Line layers that reveal along a scalar "arrival" attribute (radians from the
-// seed, or arc length), with a hot tip at the front and a configurable wake.
-export function frontLineMaterial({ color, alpha = 1, after = 0.25, tip = 3.0, decay = 4.0, additive = true }) {
-  return new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    depthTest: true,
-    blending: additive ? THREE.AdditiveBlending : THREE.NormalBlending,
-    uniforms: {
-      uColor: { value: new THREE.Color(color) },
-      uFront: { value: -1 },
-      uAlpha: { value: alpha },
-      uAfter: { value: after },
-      uTip: { value: tip },
-      uDecay: { value: decay },
-      uFadeBack: { value: 1 },
-    },
-    vertexShader: /* glsl */ `
-      attribute float aDist;
-      varying float vDist;
-      varying float vFacing;
-      void main() {
-        vDist = aDist;
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vec3 n = normalize(wp.xyz);
-        vFacing = dot(n, normalize(cameraPosition - wp.xyz));
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform vec3 uColor;
-      uniform float uFront, uAlpha, uAfter, uTip, uDecay, uFadeBack;
-      varying float vDist;
-      varying float vFacing;
-      void main() {
-        float behind = uFront - vDist;
-        if (behind < 0.0) discard;
-        float a = uAfter + (1.0 - uAfter) * exp(-behind * uDecay);
-        float hot = exp(-behind * 60.0) * uTip;
-        float back = mix(1.0, smoothstep(-0.15, 0.25, vFacing), uFadeBack);
-        vec3 c = uColor * (a + hot) + vec3(1.0) * hot * 0.6;
-        gl_FragColor = vec4(c * uAlpha * back, 1.0);
-      }
-    `,
-  });
-}
-
-function segmentsFromPolylines(lines, r, distFn) {
-  const pos = [];
-  const dist = [];
-  const a = [0, 0, 0];
-  const b = [0, 0, 0];
-  for (const line of lines) {
-    for (let i = 0; i < line.length - 1; i++) {
-      const [lo1, la1] = line[i];
-      const [lo2, la2] = line[i + 1];
-      if (Math.abs(lo2 - lo1) > 180) continue; // antimeridian jump
-      llToVec(lo1, la1, r, a);
-      llToVec(lo2, la2, r, b);
-      pos.push(...a, ...b);
-      dist.push(distFn(lo1, la1, i, line), distFn(lo2, la2, i + 1, line));
-    }
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
-  g.setAttribute('aDist', new THREE.Float32BufferAttribute(dist, 1));
-  return g;
-}
-
-export function createCoastline(lines, seedLL, color = '#3ff0ff') {
-  const g = segmentsFromPolylines(lines, 1.0008, (lo, la) => angDist(seedLL[0], seedLL[1], lo, la));
-  const m = frontLineMaterial({ color, after: 0.32, tip: 5.0, decay: 3.0 });
-  return new THREE.LineSegments(g, m);
-}
-
-export function createBorders(lines, seedLL, color = '#1aa6c4') {
-  const g = segmentsFromPolylines(lines, 1.0006, (lo, la) => angDist(seedLL[0], seedLL[1], lo, la));
-  const m = frontLineMaterial({ color, after: 0.18, tip: 1.5, decay: 3.0 });
-  return new THREE.LineSegments(g, m);
-}
-
-// Mycelium: a branching random walk out from the seed. Each vertex carries its
-// path length so the network visibly *grows* rather than appearing.
-export function createMycelium(seedLL, { primaries = 22, maxSegs = 60000, seed = 7 } = {}) {
-  const rnd = mulberry32(seed);
-  const pos = [];
-  const dist = [];
-  const a = [0, 0, 0];
-  const b = [0, 0, 0];
-  const stack = [];
-  for (let i = 0; i < primaries; i++) {
-    stack.push({ lon: seedLL[0], lat: seedLL[1], brg: (360 * i) / primaries + rnd() * 12, len: 0, depth: 0, life: 150 + rnd() * 120 });
-  }
-  let segs = 0;
-  while (stack.length && segs < maxSegs) {
-    const br = stack.pop();
-    let { lon, lat, brg, len } = br;
-    const step = (0.5 + rnd() * 0.5) * D2R * (br.depth === 0 ? 1.2 : 0.9);
-    for (let s = 0; s < br.life && segs < maxSegs; s++) {
-      // outward bias keeps the culture expanding rather than knotting
-      const away = (bearing(lon, lat, seedLL[0], seedLL[1]) + 180) % 360;
-      let diff = ((away - brg + 540) % 360) - 180;
-      brg += diff * 0.04 + (rnd() - 0.5) * 26;
-      const [nl, nt] = destination(lon, lat, brg, step);
-      if (Math.abs(nl - lon) < 180) {
-        llToVec(lon, lat, 1.0012, a);
-        llToVec(nl, nt, 1.0012, b);
-        pos.push(...a, ...b);
-        dist.push(len * 0.82, (len + step) * 0.82);
-        segs++;
-      }
-      lon = nl;
-      lat = nt;
-      len += step;
-      if (len > Math.PI * 1.05) break;
-      const pBranch = br.depth < 5 ? 0.07 : 0.02;
-      if (rnd() < pBranch) {
-        stack.push({ lon, lat, brg: brg + (rnd() < 0.5 ? -1 : 1) * (22 + rnd() * 45), len, depth: br.depth + 1, life: (br.life - s) * (0.35 + rnd() * 0.5) });
-      }
-    }
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
-  g.setAttribute('aDist', new THREE.Float32BufferAttribute(dist, 1));
-  const m = frontLineMaterial({ color: '#2fe8ff', after: 0.07, tip: 4.0, decay: 2.2 });
-  const obj = new THREE.LineSegments(g, m);
-  obj.userData.segments = segs;
-  return obj;
-}
-
-// Subsea cables: drawn on, then light pulses ride them.
-export function createCables(cables) {
-  const pos = [];
-  const arc = [];
-  const rnd = [];
-  const a = [0, 0, 0];
-  const b = [0, 0, 0];
-  const r = mulberry32(99);
-  for (const line of cables) {
-    let L = 0;
-    const off = r();
-    for (let i = 0; i < line.length - 1; i++) {
-      const [lo1, la1] = line[i];
-      const [lo2, la2] = line[i + 1];
-      if (Math.abs(lo2 - lo1) > 180) continue;
-      const d = angDist(lo1, la1, lo2, la2);
-      llToVec(lo1, la1, 1.0015, a);
-      llToVec(lo2, la2, 1.0015, b);
-      pos.push(...a, ...b);
-      arc.push(L, L + d);
-      rnd.push(off, off);
-      L += d;
-    }
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
-  g.setAttribute('aArc', new THREE.Float32BufferAttribute(arc, 1));
-  g.setAttribute('aRnd', new THREE.Float32BufferAttribute(rnd, 1));
-  const m = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    uniforms: { uT: { value: 0 }, uDraw: { value: 0 }, uAlpha: { value: 0 }, uColor: { value: new THREE.Color('#2bd9ff') } },
-    vertexShader: /* glsl */ `
-      attribute float aArc;
-      attribute float aRnd;
-      varying float vArc;
-      varying float vRnd;
-      varying float vFacing;
-      void main() {
-        vArc = aArc; vRnd = aRnd;
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vFacing = dot(normalize(wp.xyz), normalize(cameraPosition - wp.xyz));
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uT, uDraw, uAlpha;
-      uniform vec3 uColor;
-      varying float vArc;
-      varying float vRnd;
-      varying float vFacing;
-      void main() {
-        float drawn = uDraw * 3.2 - vArc - vRnd * 0.4;
-        if (drawn < 0.0) discard;
-        float tip = exp(-drawn * 30.0) * 3.0;
-        float p = fract(vArc * 3.0 - uT * 0.9 + vRnd);
-        float pulse = pow(smoothstep(0.85, 1.0, p), 3.0) * 2.5;
-        float back = smoothstep(-0.1, 0.25, vFacing);
-        vec3 c = uColor * (0.28 + pulse) + vec3(1.0) * (tip + pulse * 0.4);
-        gl_FragColor = vec4(c * uAlpha * back, 1.0);
-      }
-    `,
-  });
-  return new THREE.LineSegments(g, m);
-}
-
-// Great-circle arcs that lift off the surface; a bright head travels along.
-export function createArcs(pairs, seed = 5) {
-  const rnd = mulberry32(seed);
-  const pos = [];
-  const u = [];
-  const t0 = [];
-  const SEG = 48;
-  const a = [0, 0, 0];
-  const b = [0, 0, 0];
-  for (const [p, q] of pairs) {
-    const d = angDist(p[0], p[1], q[0], q[1]);
-    if (d < 0.05) continue;
-    const brg = bearing(p[0], p[1], q[0], q[1]);
-    const lift = 0.015 + d * 0.07;
-    const start = rnd();
-    let prev = null;
-    for (let i = 0; i <= SEG; i++) {
-      const f = i / SEG;
-      const [lo, la] = destination(p[0], p[1], brg, d * f);
-      const h = 1.002 + Math.sin(Math.PI * f) * lift;
-      llToVec(lo, la, h, b);
-      if (prev) {
-        pos.push(...prev, ...b);
-        u.push((i - 1) / SEG, f);
-        t0.push(start, start);
-      }
-      prev = [...b];
-    }
-  }
-  const g = new THREE.BufferGeometry();
-  g.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
-  g.setAttribute('aU', new THREE.Float32BufferAttribute(u, 1));
-  g.setAttribute('aT0', new THREE.Float32BufferAttribute(t0, 1));
-  const m = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    uniforms: { uT: { value: 0 }, uAlpha: { value: 0 }, uColor: { value: new THREE.Color('#5ff6ff') } },
-    vertexShader: /* glsl */ `
-      attribute float aU;
-      attribute float aT0;
-      varying float vU;
-      varying float vT0;
-      void main() {
-        vU = aU; vT0 = aT0;
-        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uT, uAlpha;
-      uniform vec3 uColor;
-      varying float vU;
-      varying float vT0;
-      void main() {
-        float head = uT * 0.55 - vT0 * 1.6;   // each arc launches at its own time
-        float k = head - vU;
-        if (k < 0.0) discard;
-        float trail = exp(-k * 3.5);
-        float hot = exp(-k * 40.0) * 2.0;
-        vec3 c = uColor * (0.15 + trail) + vec3(1.0) * hot;
-        gl_FragColor = vec4(c * uAlpha, 1.0);
-      }
-    `,
-  });
-  return new THREE.LineSegments(g, m);
-}
-
-// The digital twin's lattice: a geodesic shell that grows outward.
-export function createLattice() {
-  const ico = new THREE.IcosahedronGeometry(1, 4);
-  const edges = new THREE.WireframeGeometry(ico);
-  const p = edges.getAttribute('position');
-  const rnd = [];
-  // build order: a sweep out from the seed (+X, Null Island) with a little jitter,
-  // so the shell visibly constructs itself the way the culture grew
-  for (let i = 0; i < p.count; i += 2) {
-    const mx = (p.getX(i) + p.getX(i + 1)) / 2;
-    const my = (p.getY(i) + p.getY(i + 1)) / 2;
-    const mz = (p.getZ(i) + p.getZ(i + 1)) / 2;
-    const ang = Math.acos(Math.max(-1, Math.min(1, mx / Math.hypot(mx, my, mz)))) / Math.PI;
-    const h = Math.sin(mx * 91.7 + my * 47.3 + mz * 13.1) * 43758.5;
-    const v = Math.min(0.999, ang * 0.9 + (h - Math.floor(h)) * 0.08);
-    rnd.push(v, v);
-  }
-  edges.setAttribute('aRnd', new THREE.Float32BufferAttribute(rnd, 1));
-  const m = new THREE.ShaderMaterial({
-    transparent: true,
-    depthWrite: false,
-    blending: THREE.AdditiveBlending,
-    uniforms: { uAlpha: { value: 0 }, uBuild: { value: 0 }, uT: { value: 0 }, uColor: { value: new THREE.Color('#38e8ff') } },
-    vertexShader: /* glsl */ `
-      attribute float aRnd;
-      varying float vRnd;
-      varying vec3 vP;
-      varying float vFacing;
-      void main() {
-        vRnd = aRnd; vP = normalize(position);
-        vec4 wp = modelMatrix * vec4(position, 1.0);
-        vFacing = dot(normalize(wp.xyz), normalize(cameraPosition - wp.xyz));
-        gl_Position = projectionMatrix * viewMatrix * wp;
-      }
-    `,
-    fragmentShader: /* glsl */ `
-      uniform float uAlpha, uBuild, uT;
-      uniform vec3 uColor;
-      varying float vRnd;
-      varying vec3 vP;
-      varying float vFacing;
-      void main() {
-        if (vRnd > uBuild) discard;
-        float fresh = exp(-(uBuild - vRnd) * 18.0);
-        float shimmer = 0.6 + 0.4 * sin(uT * 3.0 + vRnd * 40.0);
-        // silhouette-weighted: the shell reads as a sphere, not a net over the planet
-        float rim = 1.0 - abs(vFacing);
-        float back = mix(0.18, 1.0, pow(rim, 1.5));
-        vec3 c = uColor * (0.3 * shimmer + fresh * 1.6) + vec3(1.0) * fresh * 0.7;
-        gl_FragColor = vec4(c * uAlpha * back, 1.0);
-      }
-    `,
-  });
-  return new THREE.LineSegments(edges, m);
-}

intro-sequence/src/main.js

@@ -1,832 +0,0 @@
-import * as THREE from 'three';
-import * as satellite from 'satellite.js';
-import { T, FPS, FEEDS, CITIES, DURATION, captureTimes, clamp, lerp, ramp, smooth, win, easeInOut, expoOut, mulberry32 } from './timeline.js';
-import { loadCity, buildCity, loopPath } from './city.js';
-import { llToVec, subsolar, angDist, D2R, R2D, EARTH_KM } from './geo.js';
-import { createGlobe } from './globe.js';
-import { createCoastline, createBorders, createMycelium, createCables, createArcs, createLattice } from './lines.js';
-import { createMovers, createEvents, createSatellites, createOrbitRings, createWind, createStars } from './layers.js';
-import { createPost } from './post.js';
-import { createHUD } from './hud.js';
-
-const qs = new URLSearchParams(location.search);
-const W = +qs.get('w') || 1920;
-const H = +qs.get('h') || 1080;
-const PORTRAIT = H > W;
-const SEED_LL = [0, 0]; // `seed --origin null` — Null Island
-
-const status = (m) => {
-  window.__status = m;
-  console.log('[gev]', m);
-};
-
-async function json(path) {
-  try {
-    const r = await fetch(path);
-    if (!r.ok) throw new Error(r.status);
-    return await r.json();
-  } catch (e) {
-    console.warn('missing', path, e.message);
-    return null;
-  }
-}
-async function text(path) {
-  try {
-    const r = await fetch(path);
-    return r.ok ? await r.text() : null;
-  } catch {
-    return null;
-  }
-}
-function tex(path, { srgb = true, mips = true } = {}) {
-  return new Promise((res) => {
-    new THREE.TextureLoader().load(
-      path,
-      (t) => {
-        if (srgb) t.colorSpace = THREE.SRGBColorSpace;
-        t.anisotropy = 8;
-        t.generateMipmaps = mips;
-        t.minFilter = mips ? THREE.LinearMipmapLinearFilter : THREE.LinearFilter;
-        t.wrapS = THREE.RepeatWrapping;
-        res(t);
-      },
-      undefined,
-      () => {
-        console.warn('missing texture', path);
-        const d = new THREE.DataTexture(new Uint8Array([0, 0, 0, 255]), 1, 1);
-        d.needsUpdate = true;
-        res(d);
-      },
-    );
-  });
-}
-function img(path) {
-  return new Promise((res) => {
-    const im = new Image();
-    im.onload = () => res(im);
-    im.onerror = () => res(null);
-    im.src = path;
-  });
-}
-
-// ------------------------------------------------------------------ boot
-async function init() {
-  status('loading');
-  const canvas = document.getElementById('c');
-  canvas.width = W;
-  canvas.height = H;
-  canvas.style.width = W + 'px';
-  canvas.style.height = H + 'px';
-
-  await document.fonts.ready;
-  await Promise.all([
-    document.fonts.load('400 20px "JetBrains Mono"'),
-    document.fonts.load('500 20px "JetBrains Mono"'),
-    document.fonts.load('200 20px Inter'),
-    document.fonts.load('300 20px Inter'),
-    document.fonts.load('500 20px Inter'),
-  ]);
-
-  const [flights, mil, vessels, quakes, fires, wind, cables, coast, borders, cities, airports, radio, bikes, tleText, tleGroups, heroIdx, camIdx, extra, plants, pads] =
-    await Promise.all([
-      json('data/flights.json'),
-      json('data/military.json'),
-      json('data/vessels.json'),
-      json('data/quakes.json'),
-      json('data/fires.json'),
-      json('data/wind.json'),
-      json('data/cables.json'),
-      json('data/coastline.json'),
-      json('data/borders.json'),
-      json('data/cities.json'),
-      json('data/airports.json'),
-      json('data/radio.json'),
-      json('data/bikes.json'),
-      text('data/tle.txt'),
-      json('data/tle_groups.json'),
-      json('imagery/hero/index.json'),
-      json('cctv/index.json'),
-      json('data/extra_counts.json'),
-      json('data/power_plants.json'),
-      json('data/launch_sites.json'),
-    ]);
-
-  const [dayTex, nightTex, cloudTex] = await Promise.all([
-    tex('imagery/earth_day.jpg'),
-    tex('imagery/earth_night.jpg'),
-    tex('imagery/clouds.jpg', { srgb: false }),
-  ]);
-
-  // Hero captures (Esri synthetic screenshots) and CCTV stills
-  const heroes = [];
-  for (const h of heroIdx || []) {
-    const [wide, close] = await Promise.all([img(`imagery/hero/${h.slug}_wide.jpg`), img(`imagery/hero/${h.slug}_close.jpg`)]);
-    if (wide && close) heroes.push({ ...h, wide, close });
-  }
-  const cams = [];
-  for (const c of camIdx || []) {
-    const im = await img(`cctv/${c.file}`);
-    if (im) cams.push({ ...c, img: im });
-  }
-  status(`assets: ${heroes.length} heroes, ${cams.length} cams`);
-
-  // ---------------------------------------------------------------- scene
-  const renderer = new THREE.WebGLRenderer({ canvas, antialias: false, preserveDrawingBuffer: true, powerPreference: 'high-performance' });
-  renderer.setPixelRatio(1);
-  renderer.setSize(W, H, false);
-  renderer.autoClear = false;
-
-  const scene = new THREE.Scene();
-  const FOV = 26;
-  const camera = new THREE.PerspectiveCamera(FOV, W / H, 0.005, 3000);
-
-  const snapT = new Date((flights?.t || Date.now() / 1000) * 1000);
-  const sunLL = subsolar(snapT);
-  const sunV = new THREE.Vector3(...llToVec(sunLL[0], sunLL[1]));
-
-  const globe = createGlobe({ dayTex, nightTex, cloudTex });
-  globe.uniforms.uSeed.value.set(...llToVec(SEED_LL[0], SEED_LL[1]));
-  globe.uniforms.uSun.value.copy(sunV);
-  globe.uniforms.uWave.value.set(...T.zWave);
-  scene.add(globe.group);
-
-  const stars = createStars();
-  scene.add(stars.group);
-
-  const coastline = coast ? createCoastline(coast.lines, SEED_LL) : null;
-  const borderL = borders ? createBorders(borders.lines, SEED_LL) : null;
-  const myc = createMycelium(SEED_LL);
-  [coastline, borderL, myc].forEach((o) => o && scene.add(o));
-
-  const cableL = cables ? createCables(cables.cables) : null;
-  if (cableL) scene.add(cableL);
-
-  // live feeds
-  const L = {};
-  if (flights) L.air = createMovers(flights.rows, { color: '#e8fbff', trailColor: '#4fd8ff', size: 2.0, altScale: 10, seed: 2 });
-  if (mil) L.mil = createMovers(mil.rows, { color: '#ffbf5a', trailColor: '#ff9a2a', size: 4.0, altScale: 10, revealSpread: 0.6, seed: 4 });
-  if (vessels) L.sea = createMovers(vessels.rows.map((r) => [r[0], r[1], 0, r[3], (r[2] || 0) * 0.5144]), { color: '#52ffc8', trailColor: '#1fd6a0', size: 1.5, gain: 0.45, altScale: 0, seed: 6 });
-  const quakeRowsX = (quakes?.rows || []).filter((r) => r[3] >= 2.5).map((r) => [r[0], r[1], r[3]]);
-  const quakeRows = quakeRowsX;
-  L.quake = createEvents(quakeRows, { color: '#ff3d3d', size: 1.6, mode: 'ring', weightFn: (m) => clamp((m - 2.4) / 4.5, 0.05, 1.3), spread: 1.6 });
-  const fireRows = (fires?.rows || []).map((r) => [r[0], r[1], r[2]]);
-  L.fire = createEvents(fireRows, { color: '#ff6a14', size: 1.15, gain: 0.32, mode: 'flicker', weightFn: (f) => clamp(Math.log10(1 + f) / 2.5, 0, 1.2), spread: 1.4 });
-  if (wind) L.wind = createWind(wind, { count: PORTRAIT ? 6000 : 7000 });
-  Object.values(L).forEach((l) => scene.add(l.group));
-
-  // satellites
-  const sats = [];
-  if (tleText) {
-    const lines = tleText.split(/\r?\n/).map((s) => s.trimEnd()).filter(Boolean);
-    for (let i = 0; i < lines.length - 1; i++) {
-      if (lines[i].startsWith('1 ') && lines[i + 1].startsWith('2 ')) {
-        const name = i > 0 && !lines[i - 1].startsWith('2 ') && !lines[i - 1].startsWith('1 ') ? lines[i - 1].replace(/^0 /, '').trim() : '';
-        try {
-          const rec = satellite.twoline2satrec(lines[i], lines[i + 1]);
-          sats.push({ rec, name, norad: +lines[i].slice(2, 7) || 0 });
-        } catch {}
-        i++;
-      }
-    }
-  }
-  const stationSet = new Set(tleGroups?.groups_norad?.stations || [25544]);
-  const satL = createSatellites(Math.max(1, sats.length));
-  sats.forEach((s, i) => (satL.kind[i] = stationSet.has(s.norad) ? 1 : 0));
-  satL.group.geometry.getAttribute('aK').needsUpdate = true;
-  scene.add(satL.group);
-  const satByNorad = new Map(sats.map((s, i) => [s.norad, i]));
-
-  // orbit rings in an ECI-aligned group, rotated by -GMST each frame
-  const ringGroup = new THREE.Group();
-  scene.add(ringGroup);
-  // LEO rings for the orbital beat; GPS/GEO rings only once the camera is far out
-  const ringIds = [25544, 20580, 48274, 41866, 51850, 40105, 28474, 43226];
-  const ringPaths = [];
-  const highPaths = [];
-  for (const id of ringIds) {
-    const i = satByNorad.get(id);
-    if (i === undefined) continue;
-    const rec = sats[i].rec;
-    const period = (2 * Math.PI) / rec.no; // minutes
-    const path = [];
-    for (let k = 0; k <= 240; k++) {
-      const d = new Date(snapT.getTime() + (k / 240) * period * 60000);
-      const pv = satellite.propagate(rec, d);
-      if (!pv.position) continue;
-      const p = pv.position;
-      path.push([p.x / EARTH_KM, p.z / EARTH_KM, -p.y / EARTH_KM]);
-    }
-    if (path.length > 10) (Math.hypot(...path[0]) < 1.3 ? ringPaths : highPaths).push(path);
-  }
-  const rings = createOrbitRings(ringPaths);
-  const ringsHigh = createOrbitRings(highPaths, '#a9a2ff');
-  ringGroup.add(rings, ringsHigh);
-
-  // data arcs for saturation: between big cities, cameras and cable ends
-  const arcPairs = [];
-  {
-    const r = mulberry32(42);
-    const pool = (cities?.rows || []).slice(0, 400).map((c) => [c[0], c[1]]);
-    for (let i = 0; i < 150 && pool.length > 2; i++) {
-      const a = pool[Math.floor(Math.pow(r(), 1.6) * pool.length)];
-      const b = pool[Math.floor(r() * pool.length)];
-      if (angDist(a[0], a[1], b[0], b[1]) > 0.15) arcPairs.push([a, b]);
-    }
-  }
-  const arcs = createArcs(arcPairs);
-  scene.add(arcs);
-
-  const lattice = createLattice();
-  scene.add(lattice);
-
-  const pxScale = Math.min(W, H) / 1080;
-  for (const l of [...Object.values(L), satL, stars]) if (l.uniforms.uPx) l.uniforms.uPx.value = pxScale;
-
-  // ---------------------------------------------------------------- HUD + post
-  const hudCanvas = document.createElement('canvas');
-  hudCanvas.width = W;
-  hudCanvas.height = H;
-  const post = createPost(renderer, W, H, hudCanvas);
-  const hudCtx = hudCanvas.getContext('2d');
-
-  const counts = {
-    air: flights?.rows.length || 0,
-    mil: mil?.rows.length || 0,
-    sea: vessels?.rows.length || 0,
-    orbit: sats.length,
-    quake: quakes?.rows.length || 0,
-    fire: fires?.rows.length || 0,
-    wind: wind ? wind.nx * wind.ny : 0,
-    cable: cables?.cables.length || 0,
-    cctv: extra?.cctv_catalog || cams.length,
-    cities: cities?.rows.length || 0,
-    cctvCountries: extra?.cctv_countries || new Set(cams.map((c) => c.country)).size,
-    cctvSources: extra?.cctv_sources ? Object.keys(extra.cctv_sources).length : new Set(cams.map((c) => c.source)).size,
-  };
-  const rapidList = [];
-  if (airports) rapidList.push(['AIRPORTS', airports.rows.length]);
-  if (radio) rapidList.push(['RADIO STATIONS', radio.rows.length]);
-  if (bikes) rapidList.push(['BIKESHARE STATIONS', bikes.rows.length]);
-  if (plants) rapidList.push(['POWER PLANTS', plants.rows.length]);
-  if (pads) rapidList.push(['LAUNCH PADS', pads.rows.length]);
-  rapidList.push(['POPULATED PLACES', counts.cities]);
-  rapidList.push(['LAND BORDERS', borders?.lines.length || 0]);
-
-  // notable callouts — real records picked from the feeds
-  const pick = {
-    flights: pickFlights(flights),
-    mil: (mil?.rows || []).filter((r) => r[5] && r[7] && r[2] > 1500 && r[4] > 80).slice(0, 8),
-    ships: (vessels?.rows || []).filter((r) => r[5] && r[2] > 6).slice(0, 40),
-    quakeTop: (quakes?.rows || []).slice().sort((a, b) => b[3] - a[3]).slice(0, 4),
-    fireTop: (fires?.rows || []).slice().sort((a, b) => b[2] - a[2]).slice(0, 3),
-    cities: (cities?.rows || []).slice(0, 220),
-  };
-
-  const capT = captureTimes(heroes.length);
-  // v2 assets: the capture flurry, street cameras, detections
-  const flurryIdx = (await json('imagery/flurry/index.json')) || [];
-  const flurry = [];
-  for (const f of flurryIdx) {
-    const im = await img(`imagery/flurry/${f.file}`);
-    if (im) flurry.push({ ...f, img: im });
-  }
-  const detections = (await json('cctv/detections.json')) || {};
-  const nycIdx = (await json('cctv/nyc/index.json')) || [];
-  const nycCams = [];
-  for (const c of nycIdx) {
-    const im = await img(`cctv/nyc/${c.file}`);
-    if (im) nycCams.push({ ...c, img: im, det: detections[`nyc/${c.file}`] || detections[`cctv/nyc/${c.file}`] || [] });
-  }
-  for (const c of cams) c.det = detections[c.file] || detections[`cctv/${c.file}`] || [];
-  status(`v2 assets: ${flurry.length} flurry, ${nycCams.length} nyc cams, ${Object.keys(detections).length} detection sets`);
-
-  // ---------------------------------------------------------------- cities
-  const cityCam = new THREE.PerspectiveCamera(PORTRAIT ? 60 : 36, W / H, 0.05, 600);
-  const cityScenes = [];
-  for (const c of CITIES) {
-    const d = await loadCity(c.slug);
-    if (!d.meta) {
-      console.warn('city missing', c.slug);
-      continue;
-    }
-    const built = buildCity(d, { modeled: modeledFor(c.slug, d) });
-    cityScenes.push({ ...c, d, built });
-    status(`city ${c.slug}: ${JSON.stringify(built.stats)}`);
-  }
-  window.__cities = cityScenes;
-  const CITY_CAMS = {
-    everest: [[[17, 26, 22], [0, 4.5, 0]], [[7, 16, 17], [0, 6, -1]], [[-9, 12.5, 13], [0, 6.5, 0]]],
-    nyc: [[[0.2, 7.5, 2.2], [0, 0, -0.3]], [[1.7, 2.7, 2.5], [0, 0.1, -0.4]], [[2.7, 1.15, 0.5], [0.1, 0.15, -0.6]]],
-    boston: [[[-0.4, 5.6, 3.4], [0, 0, 0]], [[1.3, 2.5, 2.7], [0, 0, -0.2]], [[2.5, 1.35, 1.0], [0.1, 0.05, -0.3]]],
-    lax: [[[-4.2, 2.8, 3.6], [0, 0, 0]], [[-1.0, 1.5, 3.0], [0.3, 0, 0]], [[1.9, 0.95, 2.3], [0.6, 0, -0.2]]],
-    bragg: [[[0, 9, 8], [0, 0, 0]], [[-3.2, 4.8, 5.2], [0.3, 0, 0]], [[-5.2, 2.8, 2.1], [0.5, 0, 0]]],
-  };
-  const camCurves = {};
-  for (const [k, keys] of Object.entries(CITY_CAMS)) {
-    const s = PORTRAIT ? 1.18 : 1;
-    camCurves[k] = {
-      pos: new THREE.CatmullRomCurve3(keys.map(([p, q]) => new THREE.Vector3(q[0] + (p[0] - q[0]) * s, q[1] + (p[1] - q[1]) * s, q[2] + (p[2] - q[2]) * s))),
-      tgt: new THREE.CatmullRomCurve3(keys.map(([, q]) => new THREE.Vector3(...q))),
-    };
-  }
-  const KMV = 0.001;
-  const cv = new THREE.Vector3();
-  function projectCity(x, y, z = 0) {
-    cv.set(x * KMV, z * KMV, -y * KMV).project(cityCam);
-    return { x: (cv.x * 0.5 + 0.5) * W, y: (-cv.y * 0.5 + 0.5) * H, vis: cv.z < 1 && cv.z > -1 };
-  }
-
-  const hud = createHUD({ W, H, PORTRAIT, heroes, cams, counts, rapidList, pick, capT, snapT, sunLL, flurry, nycCams });
-
-  // ---------------------------------------------------------------- camera director
-  // Keys: [t, lon, lat, g (globe radius / half the short side), shiftX, shiftY, roll]
-  const sx = PORTRAIT ? 0 : 0.26;
-  const sy = PORTRAIT ? 0.2 : 0;
-  const KEYS = [
-    [0, 0, 0, 0.6, 0, 0, 0],
-    [8.7, 0, 0, 0.6, 0, 0, 0],
-    [16.6, -1.5, 1.5, 0.62, 0, 0, 0],
-    [19.5, 4, 6, 0.7, 0, 0, -0.01],
-    [22.6, 14, 12, 0.74, 0, 0, -0.02],
-    // the flurry: the planet whips a full turn, accelerating then braking
-    [23.6, 20, 12, 0.74, 0, 0, -0.02],
-    [25.0, 50, 14, 0.74, 0, 0, -0.03],
-    [26.2, 120, 16, 0.72, 0, 0, -0.04],
-    [27.2, 230, 18, 0.72, 0, 0, -0.04],
-    [28.2, 330, 24, 0.78, 0, 0, -0.03],
-    [29.2, 375, 30, 0.9, sx * 0.3, sy * 0.3, -0.02],
-    [30.0, 384, 36, 0.98, sx * 0.5, sy * 0.5, -0.02],
-    [31.8, 374, 58, 1.85, sx, sy, -0.03],
-    [32.8, 368, 59, 1.9, sx, sy, -0.03],
-    [34.4, 305, 43, 1.0, sx, sy, -0.01],
-    [35.6, 268, 30, 0.5, sx, sy, 0.0],
-    [37.6, 225, 20, 0.62, sx, sy, 0.02],
-    [39.4, 175, 2, 0.7, sx, sy, 0.01],
-    [41.0, 150, 6, 0.78, sx, sy, 0.0],
-    // descent: swing to the Himalaya and fall in
-    [42.4, 100, 22, 1.1, sx * 0.4, sy * 0.4, 0.0],
-    [43.2, 88, 27.5, 3.5, 0, 0, 0.0],
-    [43.7, 87, 28, 9.0, 0, 0, 0.0],
-    // behind the camera wall, and back out for saturation
-    [71.0, 205, 16, 0.9, 0, 0, 0.0],
-    [76.4, 200, 18, 0.9, 0, 0, 0.0],
-    [80.0, 178, 24, 0.5, 0, 0, 0.0],
-    [84.4, 148, 22, 0.16, 0, 0, 0.0],
-  ];
-  // Title framing: the planet becomes the iris of the logo.
-  const eye = hud.eyeLayout;
-
-  // Each flurry capture fires as its real location rotates into view on the
-  // leading (east) side of the disc during the spin (18° east of centre).
-  {
-    const samples = [];
-    for (let i = 0; i <= 600; i++) {
-      const tt = T.flurry + (i / 600) * (T.flurryEnd - T.flurry);
-      samples.push([tt, camAt(tt).lon]);
-    }
-    const lo = samples[0][1];
-    const hi = samples[samples.length - 1][1];
-    for (const f of flurry) {
-      let L = f.lon - 18;
-      while (L < lo) L += 360;
-      if (L > hi) continue;
-      const s = samples.find((q) => q[1] >= L);
-      if (s) f.t = s[0] + (hash01(f.lat * 13.3) - 0.5) * 0.08;
-    }
-  }
-
-  function camAt(t) {
-    if (t >= T.title - 0.05) {
-      const g = eye.irisR / (Math.min(W, H) / 2);
-      const k = t - T.title;
-      return { lon: 108 + k * 1.6, lat: 12, g, shiftX: 0, shiftY: (H / 2 - eye.cy) / (Math.min(W, H) / 2), roll: 0 };
-    }
-    let i = 0;
-    while (i < KEYS.length - 2 && t > KEYS[i + 1][0]) i++;
-    const k0 = KEYS[Math.max(0, i - 1)];
-    const k1 = KEYS[i];
-    const k2 = KEYS[i + 1];
-    const k3 = KEYS[Math.min(KEYS.length - 1, i + 2)];
-    const u = clamp((t - k1[0]) / (k2[0] - k1[0]));
-    const out = [];
-    for (let c = 1; c < 7; c++) {
-      const dt = k2[0] - k1[0];
-      const m1 = ((k2[c] - k0[c]) / Math.max(1e-3, k2[0] - k0[0])) * dt;
-      const m2 = ((k3[c] - k1[c]) / Math.max(1e-3, k3[0] - k1[0])) * dt;
-      const u2 = u * u;
-      const u3 = u2 * u;
-      out[c] = (2 * u3 - 3 * u2 + 1) * k1[c] + (u3 - 2 * u2 + u) * m1 + (-2 * u3 + 3 * u2) * k2[c] + (u3 - u2) * m2;
-    }
-    // breathing drift so the shot never feels locked off
-    const drift = smooth(t, 8, 12);
-    return {
-      lon: out[1] + Math.sin(t * 0.21) * 0.6 * drift,
-      lat: out[2] + Math.sin(t * 0.17 + 1.3) * 0.4 * drift,
-      g: out[3],
-      shiftX: out[4],
-      shiftY: out[5],
-      roll: out[6],
-    };
-  }
-
-  const HITS = [
-    [T.collapse, 0.5],
-    [T.substrate, 0.7],
-    [T.indexed, 0.9],
-    [T.cctvWall, 0.5],
-    [T.cctvOut, 0.6],
-    [T.dishBreak, 1.0],
-    [T.eyeOpen, 0.4],
-  ];
-  function impulse(t, decay = 6) {
-    let v = 0;
-    for (const [h, a] of HITS) if (t >= h) v += a * Math.exp(-(t - h) * decay);
-    return v;
-  }
-
-  function placeCamera(t) {
-    const c = camAt(t);
-    const minDim = Math.min(W, H);
-    const tanHalf = Math.tan((FOV * D2R) / 2);
-    const tanA = (c.g * minDim) / H * tanHalf;
-    const dist = 1 / Math.sin(Math.atan(tanA));
-    const shake = impulse(t, 9) * 0.0025;
-    const sh1 = Math.sin(t * 91.0) * shake;
-    const sh2 = Math.cos(t * 77.0) * shake;
-    camera.position.set(...llToVec(c.lon, c.lat, dist));
-    camera.up.set(0, 1, 0);
-    camera.lookAt(0, 0, 0);
-    camera.rotateZ(c.roll + sh1 * 2);
-    camera.near = Math.max(0.002, dist - 30);
-    camera.far = dist + 2000;
-    // shift the globe on screen without changing perspective
-    const offX = -c.shiftX * (minDim / 2) + sh1 * W;
-    const offY = c.shiftY * (minDim / 2) + sh2 * H;
-    camera.setViewOffset(W, H, offX, offY, W, H);
-    camera.updateProjectionMatrix();
-    camera.updateMatrixWorld();
-    return { ...c, dist };
-  }
-
-  // ---------------------------------------------------------------- per-frame state
-  const tmpV = new THREE.Vector3();
-  function project(lon, lat, r = 1) {
-    tmpV.set(...llToVec(lon, lat, r));
-    const n = tmpV.clone().normalize();
-    const toCam = camera.position.clone().sub(tmpV).normalize();
-    const facing = r <= 1.2 ? n.dot(toCam) : 1;
-    tmpV.project(camera);
-    return { x: (tmpV.x * 0.5 + 0.5) * W, y: (-tmpV.y * 0.5 + 0.5) * H, vis: facing > 0.05 && tmpV.z < 1, facing };
-  }
-  function projectVec(v) {
-    tmpV.set(v[0], v[1], v[2]);
-    tmpV.project(camera);
-    return { x: (tmpV.x * 0.5 + 0.5) * W, y: (-tmpV.y * 0.5 + 0.5) * H, z: tmpV.z };
-  }
-
-  function frontAngle(t) {
-    if (t < T.growStart) return -1;
-    const x = ramp(t, T.growStart, T.growEnd);
-    const k = 3;
-    const base = Math.PI * (Math.exp(k * x) - 1) / (Math.exp(k) - 1);
-    return base + Math.max(0, t - T.growEnd) * 0.6;
-  }
-
-  const satScratch = { idx: -1 };
-  function updateSatellites(t, simDate) {
-    const gmst = satellite.gstime(simDate);
-    ringGroup.rotation.y = -gmst;
-    if (satScratch.t === t) return gmst;
-    satScratch.t = t;
-    const p = satL.positions;
-    for (let i = 0; i < sats.length; i++) {
-      const pv = satellite.propagate(sats[i].rec, simDate);
-      const e = pv && pv.position;
-      if (!e || isNaN(e.x)) {
-        p[i * 3] = p[i * 3 + 1] = p[i * 3 + 2] = 0;
-        continue;
-      }
-      const ecf = satellite.eciToEcf(e, gmst);
-      p[i * 3] = ecf.x / EARTH_KM;
-      p[i * 3 + 1] = ecf.z / EARTH_KM;
-      p[i * 3 + 2] = -ecf.y / EARTH_KM;
-    }
-    satL.attr.needsUpdate = true;
-    return gmst;
-  }
-
-  function feedAlpha(t, start) {
-    // everything stays on through saturation, then clears for the title
-    return smooth(t, start, start + 0.25) * (1 - smooth(t, T.cut - 0.05, T.cut));
-  }
-
-  function renderFrame(frame) {
-    const t = frame / FPS;
-    const cam = placeCamera(t);
-    const cityNow = cityScenes.find((c) => t >= c.t0 && t < c.t1);
-    const G = globe.uniforms;
-    const front = frontAngle(t);
-    const titleOn = t >= T.title - 0.05;
-
-    G.uTime.value = t;
-    G.uFront.value = titleOn ? 10 : front;
-    G.uHolo.value = smooth(t, T.growStart - 0.4, T.growStart + 1.2) * (1 - smooth(t, T.indexed - 1, T.indexed + 1));
-    G.uLights.value = smooth(t, T.growStart, T.growStart + 0.8);
-    G.uImagery.value = titleOn ? 1 : smooth(t, 26.5, 29.5);
-    G.uLit.value = titleOn ? 1 : smooth(t, 22.6, 26.0);
-    G.uGridAmt.value = titleOn ? 0 : 1;
-    G.uDim.value = 1 - 0.35 * win(t, T.cctvWall - 0.2, T.cctvOut + 0.3, 0.3, 0.3);
-    globe.cloudU.uAmt.value = titleOn ? 0.6 : smooth(t, T.wind, T.wind + 1.6) * 0.62;
-    globe.atmoU.uAmt.value = titleOn ? 1 : smooth(t, 21.0, 25.0);
-    globe.group.children[1].visible = globe.cloudU.uAmt.value > 0.0005;
-    globe.group.children[2].visible = globe.atmoU.uAmt.value > 0.0005;
-    globe.group.visible = !(t >= T.cut && t < T.title - 0.05) && t >= T.seed - 0.1;
-
-    stars.uniforms.uAlpha.value = titleOn ? 0.5 : smooth(t, T.substrate - 0.5, T.substrate + 2.5) * 0.85 * (t < T.cut ? 1 : 0);
-
-    const vecFade = 1 - smooth(t, T.indexStart + 1.5, T.indexed - 2);
-    if (coastline) {
-      coastline.material.uniforms.uFront.value = front;
-      coastline.material.uniforms.uAlpha.value = 0.95 * vecFade;
-      coastline.visible = vecFade > 0.001 && !titleOn;
-    }
-    if (borderL) {
-      borderL.material.uniforms.uFront.value = front - 0.25;
-      borderL.material.uniforms.uAlpha.value = 0.7 * vecFade;
-      borderL.visible = vecFade > 0.001 && !titleOn;
-    }
-    myc.material.uniforms.uFront.value = front;
-    myc.material.uniforms.uAlpha.value = 0.85 * (1 - smooth(t, T.substrate, T.indexStart + 3));
-    myc.visible = t > T.growStart && t < T.indexStart + 3.2;
-
-    // feeds
-    const dens = clamp((cam.g - 0.12) / 0.75, 0.22, 1);
-    const reveal = (start, dur = 1.6, spread = 1.4) => ((t - start) * (1 + spread)) / dur;
-    const setMover = (l, start, accel) => {
-      if (!l) return;
-      l.uniforms.uSim.value = Math.max(0, t - start) * accel;
-      l.uniforms.uReveal.value = reveal(start, 1.6, l.uniforms.uSpread.value);
-      l.uniforms.uAlpha.value = feedAlpha(t, start) * dens;
-      l.group.visible = t >= start && t < T.cut;
-    };
-    setMover(L.air, T.air, 140);
-    setMover(L.mil, T.mil, 140);
-    setMover(L.sea, T.sea, 1800);
-    const setEv = (l, start, dur = 1.8) => {
-      if (!l) return;
-      l.uniforms.uT.value = t;
-      l.uniforms.uReveal.value = reveal(start, dur, l.uniforms.uSpread.value);
-      l.uniforms.uAlpha.value = feedAlpha(t, start) * dens;
-      l.group.visible = t >= start && t < T.cut;
-    };
-    setEv(L.quake, T.quake, 1.6);
-    setEv(L.fire, T.fire, 1.5);
-    if (L.fire) L.fire.uniforms.uAlpha.value *= dens;
-    if (L.wind) {
-      const on = t >= T.wind && t < T.cut;
-      L.wind.group.visible = on;
-      if (on) {
-        L.wind.update(t - T.wind);
-        L.wind.uniforms.uAlpha.value = feedAlpha(t, T.wind) * 2.2 * dens;
-      }
-    }
-    if (cableL) {
-      const u = cableL.material.uniforms;
-      u.uT.value = t;
-      u.uDraw.value = ramp(t, T.cable, T.cable + 1.8);
-      u.uAlpha.value = feedAlpha(t, T.cable) * 0.9;
-      cableL.visible = t >= T.cable && t < T.cut;
-    }
-
-    // satellites + rings
-    const satOn = t >= T.orbit && t < T.cut;
-    const simDate = new Date(snapT.getTime() + Math.max(0, t - T.orbit) * 45 * 1000);
-    satL.group.visible = satOn;
-    rings.visible = satOn;
-    let gmst = satellite.gstime(simDate);
-    if (satOn) {
-      gmst = updateSatellites(t, simDate);
-      satL.uniforms.uReveal.value = reveal(T.orbit, 1.8, 1.3);
-      satL.uniforms.uAlpha.value = feedAlpha(t, T.orbit) * Math.max(0.45, dens);
-      rings.material.uniforms.uDraw.value = easeInOut(ramp(t, T.orbit + 0.3, T.orbit + 2.4));
-      rings.material.uniforms.uAlpha.value = feedAlpha(t, T.orbit) * 0.8;
-    }
-    ringsHigh.visible = t >= T.saturate + 1 && t < T.cut;
-    ringsHigh.material.uniforms.uDraw.value = easeInOut(ramp(t, T.saturate + 1, T.saturate + 3.5));
-    ringsHigh.material.uniforms.uAlpha.value = feedAlpha(t, T.saturate + 1) * 0.7;
-
-    // saturation: arcs + lattice
-    arcs.visible = t >= T.arcs && t < T.cut;
-    arcs.material.uniforms.uT.value = t - T.arcs;
-    arcs.material.uniforms.uAlpha.value = feedAlpha(t, T.arcs) * 0.9;
-    const twinOn = t >= T.twin && t < T.cut;
-    lattice.visible = twinOn;
-    if (twinOn) {
-      lattice.scale.setScalar(latticeScale(t, cam.dist));
-      lattice.rotation.y = t * 0.05;
-      const lu = lattice.material.uniforms;
-      lu.uBuild.value = ramp(t, T.twin, T.twin + 2.6);
-      lu.uT.value = t;
-      lu.uAlpha.value = smooth(t, T.twin, T.twin + 0.6) * (1 - smooth(t, T.cut - 0.4, T.cut)) * 0.7;
-    }
-
-    // ---- HUD
-    const S = {
-      t,
-      frame,
-      cam,
-      front,
-      gmst,
-      simDate,
-      project,
-      projectVec,
-      satPos: (norad) => {
-        const i = satByNorad.get(norad);
-        if (i === undefined) return null;
-        const p = satL.positions;
-        return [p[i * 3], p[i * 3 + 1], p[i * 3 + 2]];
-      },
-      limbR: limbRadiusPx(cam.dist),
-      center: project(...[cam.lon, cam.lat], 0), // screen position of the globe centre
-      flightPos: (row, accel) => {
-        const sim = Math.max(0, t - T.air) * accel;
-        return advance(row, sim);
-      },
-      shipPos: (row) => advance([row[0], row[1], 0, row[3], (row[2] || 0) * 0.5144], Math.max(0, t - T.sea) * 1800),
-    };
-    S.center = projectVec([0, 0, 0]);
-    S.ctx = hudCtx;
-    S.camPos = camera.position;
-    S.latticeR = latticePx(t, cam.dist);
-    S.ringR = ringR0;
-    let renderScene = scene;
-    let renderCam = camera;
-    if (cityNow) {
-      const lt = t - cityNow.t0;
-      const k = (t - cityNow.t0) / (cityNow.t1 - cityNow.t0);
-      const u = 1 - Math.pow(1 - k, 2.2);
-      const cc = camCurves[cityNow.slug];
-      cityCam.position.copy(cc.pos.getPoint(u));
-      const tg = cc.tgt.getPoint(u);
-      // a hair of handheld drift
-      cityCam.position.x += Math.sin(t * 0.7) * 0.01;
-      cityCam.position.y += Math.sin(t * 0.53) * 0.008;
-      cityCam.lookAt(tg);
-      const sh = impulse(t, 9) * 0.003;
-      cityCam.rotateZ(Math.sin(t * 91) * sh);
-      cityCam.updateMatrixWorld();
-      cityNow.built.update(lt, k, pxScale);
-      // Boston is the transit showcase: let the GTFS lines lead
-      if (cityNow.slug === 'boston' && cityNow.built.roads) cityNow.built.roads.mesh.material.uniforms.uAlpha.value = 0.45;
-      renderScene = cityNow.built.scene;
-      renderCam = cityCam;
-      S.city = { ...cityNow, lt, k, project: projectCity, built: cityNow.built };
-      S.cam = { ...S.cam, lat: cityNow.lat, lon: cityNow.lon, dist: 1 + cityCam.position.y / 6371 };
-    }
-    hud.draw(S);
-
-    // ---- post
-    const glitch =
-      win(t, T.collapse - 0.05, T.collapse + 0.35, 0.02, 0.2) * 0.8 +
-      win(t, T.substrate - 0.02, T.substrate + 0.25, 0.02, 0.2) * 0.5 +
-      win(t, T.indexed - 0.02, T.indexed + 0.3, 0.02, 0.25) * 0.7 +
-      win(t, T.cctvWall - 0.02, T.cctvWall + 0.2, 0.02, 0.15) * 0.5 +
-      win(t, T.cctvOut - 0.05, T.cctvOut + 0.3, 0.02, 0.25) * 0.8 +
-      win(t, T.dishBreak - 0.02, T.dishBreak + 0.4, 0.02, 0.3) * 1.0 +
-      win(t, T.cut - 0.25, T.cut, 0.1, 0.01) * 1.0 +
-      win(t, T.eyeOpen - 0.02, T.eyeOpen + 0.2, 0.02, 0.15) * 0.4 +
-      win(t, T.terrain - 0.35, T.terrain + 0.25, 0.25, 0.2) * 1.0 +
-      CITIES.slice(1).reduce((s, c) => s + win(t, c.t0 - 0.06, c.t0 + 0.22, 0.04, 0.16) * 0.8, 0);
-    const flash =
-      Math.exp(-Math.max(0, t - T.substrate) * 12) * 0.035 * (t >= T.substrate ? 1 : 0) +
-      Math.exp(-Math.max(0, t - T.indexed) * 12) * 0.05 * (t >= T.indexed ? 1 : 0) +
-      Math.exp(-Math.max(0, t - T.dishBreak) * 10) * 0.06 * (t >= T.dishBreak ? 1 : 0) +
-      Math.exp(-Math.max(0, t - T.eyeOpen) * 10) * 0.05 * (t >= T.eyeOpen ? 1 : 0);
-    let fade = smooth(t, 0, 0.6);
-    if (t >= T.cut && t < T.title) fade = 0;
-    fade *= 1 - smooth(t, T.fadeOut, DURATION_END);
-    post.render(renderScene, renderCam, {
-      time: t,
-      frame,
-      bloom: t < T.seed ? 0.7 : lerp(0.85, 1.15, smooth(t, T.saturate, T.cut)),
-      bloomThresh: 0.78,
-      exposure: 1.0,
-      aberr: titleOn ? 0.00025 + glitch * 0.004 : 0.0012 + 0.002 * smooth(t, T.saturate, T.cut) + glitch * 0.004,
-      grain: 0.05,
-      vignette: 0.6,
-      glitch,
-      scan: t < T.seed ? 0.7 : 0.12,
-      flash,
-      fade,
-      hudGain: 1.0,
-    });
-  }
-
-  const RING_R = Math.min(W, H) * (PORTRAIT ? 0.43 : 0.4);
-  function latticePx(t, dist) {
-    const limb = limbRadiusPx(dist) * 1.12;
-    if (t < T.dishBreak) return lerp(limb, RING_R, Math.pow(easeInOut(ramp(t, T.twin, T.dishBreak)), 1.2));
-    return RING_R * (1 + 1.6 * Math.pow(ramp(t, T.dishBreak, T.cut), 0.8));
-  }
-  function latticeScale(t, dist) {
-    const px = latticePx(t, dist);
-    const tanA = (px / (H / 2)) * Math.tan((FOV * D2R) / 2);
-    return dist * Math.sin(Math.atan(tanA));
-  }
-  function limbRadiusPx(dist) {
-    const tanA = Math.tan(Math.asin(1 / dist));
-    return (tanA / Math.tan((FOV * D2R) / 2)) * (H / 2);
-  }
-
-  function advance(row, sim) {
-    // row: [lon, lat, alt, track, vel(m/s)] -> [lon, lat] after sim seconds
-    const d = ((row[4] || 0) / (EARTH_KM * 1000)) * sim;
-    const b = (row[3] || 0) * D2R;
-    const la = row[1] * D2R;
-    const lo = row[0] * D2R;
-    const lat2 = Math.asin(Math.sin(la) * Math.cos(d) + Math.cos(la) * Math.sin(d) * Math.cos(b));
-    const lon2 = lo + Math.atan2(Math.sin(b) * Math.sin(d) * Math.cos(la), Math.cos(d) - Math.sin(la) * Math.sin(lat2));
-    return [lon2 * R2D, lat2 * R2D, row[2] || 0];
-  }
-
-  // the dish's second coming is sized so the twin breaches it exactly on cue
-  const ringR0 = RING_R;
-
-  window.GEV = { renderFrame, ready: true, W, H, frames: Math.round(DURATION_END * FPS), counts, heroes: heroes.length, cams: cams.length, capT };
-  status('ready');
-  if (qs.has('play')) startPlayback(renderFrame);
-}
-
-const DURATION_END = DURATION;
-const hash01 = (n) => {
-  const s = Math.sin(n * 127.1 + 311.7) * 43758.5453;
-  return s - Math.floor(s);
-};
-
-// Modelled actors (always labelled MODELED in the HUD) where real feeds are thin.
-function modeledFor(slug, d) {
-  const out = [];
-  if (slug === 'nyc') {
-    const realHelis = (d.air?.a || []).filter((p) => p[8] === 'A7').length;
-    if (realHelis < 3) {
-      // Hudson and East River corridors, and a hover orbit over Midtown
-      out.push({ name: 'HUDSON CORRIDOR', path: [[-1750, -3300, 300], [-1950, -1000, 330], [-1800, 1500, 350], [-1450, 3300, 320], [-1250, 1500, 300], [-1400, -1000, 290]], speed: 0.09, phase: 0.1, color: '#7dffd6' });
-      out.push({ name: 'EAST RIVER', path: [[1650, -3200, 260], [1900, -800, 280], [2150, 1800, 300], [1750, 2600, 300], [1450, 800, 270], [1350, -1500, 250]], speed: 0.08, phase: 0.55, color: '#7dffd6' });
-      out.push({ name: 'MIDTOWN ORBIT', path: loopPath(-150, 900, 420, 380, 450, 0.3, 40), speed: 0.16, phase: 0.2, color: '#7dffd6' });
-    }
-  }
-  if (slug === 'bragg') {
-    const rw = d.military?.runways?.[0];
-    let cx = 0, cy = 0, rot = 0;
-    if (rw) {
-      const x1 = rw[2], y1 = rw[3], x2 = rw[rw.length - 2], y2 = rw[rw.length - 1];
-      cx = (x1 + x2) / 2;
-      cy = (y1 + y2) / 2;
-      rot = Math.atan2(y2 - y1, x2 - x1);
-    }
-    out.push({ name: 'PATTERN', path: loopPath(cx, cy, 2600, 1100, 330, rot, 48), speed: 0.07, phase: 0.0, color: '#ffb547' });
-    out.push({ name: 'PATTERN', path: loopPath(cx, cy, 2600, 1100, 330, rot, 48), speed: 0.07, phase: 0.5, color: '#ffb547' });
-    out.push({ name: 'ROTARY', path: loopPath(cx - 3000, cy + 2500, 900, 700, 180, 0.4, 32), speed: 0.11, phase: 0.3, color: '#ffb547' });
-  }
-  return out;
-}
-
-// Real-time mode (?play): the same deterministic frames, driven by the audio
-// clock, for use as a live loading sequence on a GPU. Browsers block audio
-// until a gesture, so the first click starts it.
-function startPlayback(renderFrame) {
-  const audio = new Audio('audio/score.wav');
-  const cv = document.getElementById('c');
-  cv.style.cssText = 'width:100vw;height:100vh;object-fit:contain;display:block';
-  const gate = document.createElement('div');
-  gate.textContent = 'CLICK TO INITIALISE';
-  gate.style.cssText = 'position:fixed;inset:0;display:flex;align-items:center;justify-content:center;color:#00f6ff;font:500 14px "JetBrains Mono";letter-spacing:6px;cursor:pointer;background:#000';
-  document.body.appendChild(gate);
-  gate.addEventListener('click', () => {
-    gate.remove();
-    audio.play().catch(() => {});
-    const t0 = performance.now();
-    const tick = () => {
-      const t = audio.currentTime > 0 ? audio.currentTime : (performance.now() - t0) / 1000;
-      if (t < DURATION_END) {
-        renderFrame(Math.min(DURATION_END * FPS - 1, Math.floor(t * FPS)));
-        requestAnimationFrame(tick);
-      }
-    };
-    requestAnimationFrame(tick);
-  });
-}
-
-function pickFlights(f) {
-  if (!f) return [];
-  // long-haul, high, fast, with recognisable callsigns
-  return f.rows
-    .filter((r) => r[5] && r[2] > 9000 && r[4] > 220 && /^[A-Z]{3}\d/.test(r[5]))
-    .sort((a, b) => b[4] - a[4])
-    .slice(0, 120);
-}
-
-init().catch((e) => {
-  status('error: ' + e.message);
-  console.error(e);
-});

intro-sequence/src/post.js

@@ -1,218 +0,0 @@
-import * as THREE from 'three';
-
-// HDR scene -> HUD composited in -> dual-filter bloom -> lens + film finish.
-const QUAD_VS = /* glsl */ `
-  varying vec2 vUv;
-  void main() { vUv = uv; gl_Position = vec4(position.xy, 0.0, 1.0); }
-`;
-
-export function createPost(renderer, W, H, hudCanvas) {
-  const rtOpts = { type: THREE.HalfFloatType, format: THREE.RGBAFormat, depthBuffer: false };
-  const scene = new THREE.WebGLRenderTarget(W, H, { type: THREE.HalfFloatType, samples: 4 });
-  const merged = new THREE.WebGLRenderTarget(W, H, rtOpts);
-  const levels = [];
-  let w = W;
-  let h = H;
-  for (let i = 0; i < 6; i++) {
-    w = Math.max(2, Math.floor(w / 2));
-    h = Math.max(2, Math.floor(h / 2));
-    levels.push({ down: new THREE.WebGLRenderTarget(w, h, rtOpts), up: new THREE.WebGLRenderTarget(w, h, rtOpts) });
-  }
-
-  const hudTex = new THREE.CanvasTexture(hudCanvas);
-  hudTex.colorSpace = THREE.SRGBColorSpace;
-  hudTex.minFilter = THREE.LinearFilter;
-  hudTex.generateMipmaps = false;
-
-  const quad = new THREE.Mesh(new THREE.PlaneGeometry(2, 2));
-  const qScene = new THREE.Scene();
-  qScene.add(quad);
-  const qCam = new THREE.OrthographicCamera(-1, 1, 1, -1, 0, 1);
-
-  const mergeMat = new THREE.ShaderMaterial({
-    uniforms: { tScene: { value: null }, tHud: { value: hudTex }, uHudGain: { value: 1.25 } },
-    vertexShader: QUAD_VS,
-    fragmentShader: /* glsl */ `
-      uniform sampler2D tScene, tHud;
-      uniform float uHudGain;
-      varying vec2 vUv;
-      void main() {
-        vec3 s = texture2D(tScene, vUv).rgb;
-        vec4 hud = texture2D(tHud, vUv);
-        // canvas uploads un-premultiplied: straight-alpha over-composite
-        vec3 c = s * (1.0 - hud.a) + hud.rgb * hud.a * uHudGain;
-        gl_FragColor = vec4(c, 1.0);
-      }
-    `,
-    depthTest: false,
-  });
-
-  const downMat = new THREE.ShaderMaterial({
-    uniforms: { tSrc: { value: null }, uTexel: { value: new THREE.Vector2() }, uThresh: { value: 0 }, uFirst: { value: 0 } },
-    vertexShader: QUAD_VS,
-    fragmentShader: /* glsl */ `
-      uniform sampler2D tSrc;
-      uniform vec2 uTexel;
-      uniform float uThresh, uFirst;
-      varying vec2 vUv;
-      vec3 pre(vec3 c) {
-        if (uFirst < 0.5) return c;
-        float l = max(c.r, max(c.g, c.b));
-        float k = max(l - uThresh, 0.0) / max(l, 1e-4);
-        return min(c * k, vec3(40.0));
-      }
-      void main() {
-        vec2 o = uTexel;
-        vec3 c = pre(texture2D(tSrc, vUv).rgb) * 4.0;
-        c += pre(texture2D(tSrc, vUv + vec2(-o.x, -o.y)).rgb);
-        c += pre(texture2D(tSrc, vUv + vec2( o.x, -o.y)).rgb);
-        c += pre(texture2D(tSrc, vUv + vec2(-o.x,  o.y)).rgb);
-        c += pre(texture2D(tSrc, vUv + vec2( o.x,  o.y)).rgb);
-        gl_FragColor = vec4(c / 8.0, 1.0);
-      }
-    `,
-    depthTest: false,
-  });
-
-  const upMat = new THREE.ShaderMaterial({
-    uniforms: { tSrc: { value: null }, tBase: { value: null }, uTexel: { value: new THREE.Vector2() } },
-    vertexShader: QUAD_VS,
-    fragmentShader: /* glsl */ `
-      uniform sampler2D tSrc, tBase;
-      uniform vec2 uTexel;
-      varying vec2 vUv;
-      void main() {
-        vec2 o = uTexel;
-        vec3 c = texture2D(tSrc, vUv + vec2(-o.x * 2.0, 0.0)).rgb;
-        c += texture2D(tSrc, vUv + vec2(-o.x, o.y)).rgb * 2.0;
-        c += texture2D(tSrc, vUv + vec2(0.0, o.y * 2.0)).rgb;
-        c += texture2D(tSrc, vUv + vec2(o.x, o.y)).rgb * 2.0;
-        c += texture2D(tSrc, vUv + vec2(o.x * 2.0, 0.0)).rgb;
-        c += texture2D(tSrc, vUv + vec2(o.x, -o.y)).rgb * 2.0;
-        c += texture2D(tSrc, vUv + vec2(0.0, -o.y * 2.0)).rgb;
-        c += texture2D(tSrc, vUv + vec2(-o.x, -o.y)).rgb * 2.0;
-        gl_FragColor = vec4(c / 12.0 + texture2D(tBase, vUv).rgb, 1.0);
-      }
-    `,
-    depthTest: false,
-  });
-
-  const finalMat = new THREE.ShaderMaterial({
-    uniforms: {
-      tSrc: { value: null },
-      tBloom: { value: null },
-      uBloom: { value: 0.9 },
-      uExposure: { value: 1 },
-      uTime: { value: 0 },
-      uFrame: { value: 0 },
-      uAberr: { value: 0.0015 },
-      uGrain: { value: 0.045 },
-      uVignette: { value: 0.55 },
-      uGlitch: { value: 0 },
-      uScan: { value: 0 },
-      uFlash: { value: 0 },
-      uFade: { value: 1 },
-      uRes: { value: new THREE.Vector2(W, H) },
-    },
-    vertexShader: QUAD_VS,
-    fragmentShader: /* glsl */ `
-      uniform sampler2D tSrc, tBloom;
-      uniform float uBloom, uExposure, uTime, uFrame, uAberr, uGrain, uVignette, uGlitch, uScan, uFlash, uFade;
-      uniform vec2 uRes;
-      varying vec2 vUv;
-      float h21(vec2 p) { p = fract(p * vec2(123.34, 456.21)); p += dot(p, p + 45.32); return fract(p.x * p.y); }
-      vec3 aces(vec3 x) {
-        const float a = 2.51, b = 0.03, c = 2.43, d = 0.59, e = 0.14;
-        return clamp((x * (a * x + b)) / (x * (c * x + d) + e), 0.0, 1.0);
-      }
-      void main() {
-        vec2 uv = vUv;
-        // block glitch: horizontal slices displaced on transitions
-        if (uGlitch > 0.0) {
-          float row = floor(uv.y * 48.0);
-          float blk = floor(uv.x * 6.0);
-          float r = h21(vec2(row, floor(uFrame * 0.5)));
-          float r2 = h21(vec2(blk, row + floor(uFrame)));
-          if (r < uGlitch * 0.55) uv.x += (r2 - 0.5) * 0.08 * uGlitch;
-          if (r2 < uGlitch * 0.12) uv.y += (r - 0.5) * 0.02;
-        }
-        vec2 d = uv - 0.5;
-        float rr = dot(d, d);
-        vec2 ab = d * rr * uAberr * 7.0 + vec2(uGlitch * 0.006, 0.0);
-        vec3 col;
-        col.r = texture2D(tSrc, uv + ab).r;
-        col.g = texture2D(tSrc, uv).g;
-        col.b = texture2D(tSrc, uv - ab).b;
-        vec3 bl;
-        bl.r = texture2D(tBloom, uv + ab * 1.5).r;
-        bl.g = texture2D(tBloom, uv).g;
-        bl.b = texture2D(tBloom, uv - ab * 1.5).b;
-        col += bl * uBloom;
-        // flashes punch exposure instead of adding a veil, so blacks stay black
-        col *= uExposure * (1.0 + uFlash * 6.0);
-        col = aces(col);
-        // vignette
-        float vig = smoothstep(0.95, 0.18, length(d * vec2(uRes.x / uRes.y, 1.0) * 0.82));
-        col *= mix(1.0, vig, uVignette);
-        // scanlines (boot / CRT moments)
-        col *= 1.0 - uScan * 0.22 * (0.5 + 0.5 * sin(gl_FragCoord.y * 3.14159 * 0.5));
-        col = pow(col, vec3(1.0 / 2.2));
-        // grain after encoding so it lives in the shadows too
-        float g = h21(gl_FragCoord.xy + fract(uFrame * 0.6180339) * 913.0) - 0.5;
-        col += g * uGrain * (1.0 - 0.6 * dot(col, vec3(0.33)));
-        col *= uFade;
-        gl_FragColor = vec4(col, 1.0);
-      }
-    `,
-    depthTest: false,
-  });
-
-  function pass(mat, target) {
-    quad.material = mat;
-    renderer.setRenderTarget(target);
-    renderer.render(qScene, qCam);
-  }
-
-  function render(sceneObj, camera, params) {
-    renderer.setRenderTarget(scene);
-    renderer.setClearColor(0x000000, 1);
-    renderer.clear();
-    renderer.render(sceneObj, camera);
-
-    hudTex.needsUpdate = true;
-    mergeMat.uniforms.tScene.value = scene.texture;
-    mergeMat.uniforms.uHudGain.value = params.hudGain ?? 1.2;
-    pass(mergeMat, merged);
-
-    let src = merged;
-    for (let i = 0; i < levels.length; i++) {
-      downMat.uniforms.tSrc.value = src.texture;
-      downMat.uniforms.uTexel.value.set(0.5 / src.width, 0.5 / src.height);
-      downMat.uniforms.uFirst.value = i === 0 ? 1 : 0;
-      downMat.uniforms.uThresh.value = params.bloomThresh ?? 0.55;
-      pass(downMat, levels[i].down);
-      src = levels[i].down;
-    }
-    let up = levels[levels.length - 1].down;
-    for (let i = levels.length - 2; i >= 0; i--) {
-      upMat.uniforms.tSrc.value = up.texture;
-      upMat.uniforms.tBase.value = levels[i].down.texture;
-      upMat.uniforms.uTexel.value.set(0.5 / up.width, 0.5 / up.height);
-      pass(upMat, levels[i].up);
-      up = levels[i].up;
-    }
-
-    const u = finalMat.uniforms;
-    u.tSrc.value = merged.texture;
-    u.tBloom.value = up.texture;
-    for (const k of ['bloom', 'exposure', 'aberr', 'grain', 'vignette', 'glitch', 'scan', 'flash', 'fade']) {
-      const key = 'u' + k[0].toUpperCase() + k.slice(1);
-      if (params[k] !== undefined) u[key].value = params[k];
-    }
-    u.uTime.value = params.time;
-    u.uFrame.value = params.frame;
-    pass(finalMat, null);
-  }
-
-  return { render };
-}

intro-sequence/src/timeline.js

@@ -1,154 +0,0 @@
-// The film's clock. Everything visual and audible keys off these numbers, so the
-// renderer and the score (audio/score.py reads cues.json, exported from here)
-// stay frame-locked. Pure module: no DOM, safe to import from Node.
-
-export const FPS = 30;
-export const DURATION = 95;
-export const FRAMES = FPS * DURATION;
-
-export const T = {
-  // ACT 0 — the void
-  cursor: 0.9,
-  boot: 1.4,
-  collapse: 4.9,
-  seed: 5.35,
-  beat1: 6.1,
-  beat2: 7.35,
-  dishDraw: 6.3,
-  dishDone: 8.3,
-  aperture: 7.35,
-
-  // ACT 1 — the eye opens; the culture grows and turns out to be drawing the planet
-  growStart: 8.7,
-  coastReached: 13.4,
-  growEnd: 15.6,
-  substrate: 16.0,
-
-  // ACT 2 — indexing the surface, accelerating until it is whipping round the world
-  indexStart: 17.0,
-  zWave: [17.0, 18.5, 19.8], // z3, z4, z5 quadtree waves
-  capStart: 18.0,
-  capRapid: 22.6,
-  flurry: 23.6,
-  flurryEnd: 29.4,
-  capFull: 999, // v1's full-frame extraction now lives in the city act
-  indexed: 30.0,
-
-  // ACT 3 — global ingestion
-  air: 30.6,
-  sea: 32.0,
-  mil: 33.4,
-  orbit: 34.6,
-  quake: 36.6,
-  fire: 38.0,
-  wind: 39.4,
-  cable: 41.0,
-  descend: 42.6,
-
-  // ACT 4 — down into the world
-  terrain: 43.6,
-  nyc: 49.0,
-  boston: 57.0,
-  lax: 61.8,
-  bragg: 66.4,
-  cctv: 71.4,
-  cctvWall: 71.4,
-  rapid: 72.8,
-  cctvOut: 76.4,
-
-  // ACT 5 — saturation; the twin outgrows the dish
-  saturate: 76.6,
-  arcs: 77.3,
-  twin: 79.1,
-  dishBreak: 82.3,
-  omni: 82.9,
-  cut: 84.4,
-
-  // ACT 6 — resolve
-  title: 85.1,
-  eyeOpen: 85.9,
-  wordmark: 87.2,
-  tagline: 88.9,
-  online: 999,
-  fadeOut: 93.0,
-};
-
-// Feeds as they register in the stack (ACT 3). `key` matches a layer.
-export const FEEDS = [
-  { key: 'air', t: T.air, code: 'ADS-B', label: 'AIRCRAFT', src: 'OPENSKY NETWORK' },
-  { key: 'sea', t: T.sea, code: 'AIS', label: 'VESSELS', src: 'KYSTVERKET · DIGITRAFFIC' },
-  { key: 'mil', t: T.mil, code: 'ADS-B', label: 'MILITARY', src: 'ADSB.LOL · ADSB.FI' },
-  { key: 'orbit', t: T.orbit, code: 'TLE', label: 'SATELLITES', src: 'CELESTRAK' },
-  { key: 'quake', t: T.quake, code: 'SEIS', label: 'EARTHQUAKES', src: 'USGS' },
-  { key: 'fire', t: T.fire, code: 'IR', label: 'ACTIVE FIRES', src: 'NASA FIRMS' },
-  { key: 'wind', t: T.wind, code: 'NWP', label: 'WIND · CLOUD', src: 'NOAA GFS · GIBS' },
-  { key: 'cable', t: T.cable, code: 'GEO', label: 'SUBSEA CABLES', src: 'TELEGEOGRAPHY' },
-];
-
-// ACT 4 — the cities, in order
-export const CITIES = [
-  { slug: 'everest', t0: T.terrain, t1: T.nyc, name: 'MOUNT EVEREST', sub: 'KHUMBU · NEPAL / TIBET', lat: 27.9881, lon: 86.925 },
-  { slug: 'nyc', t0: T.nyc, t1: T.boston, name: 'NEW YORK', sub: 'MIDTOWN · MANHATTAN', lat: 40.74, lon: -73.99 },
-  { slug: 'boston', t0: T.boston, t1: T.lax, name: 'BOSTON', sub: 'MBTA · GTFS REALTIME', lat: 42.3555, lon: -71.0605 },
-  { slug: 'lax', t0: T.lax, t1: T.bragg, name: 'LOS ANGELES INTL', sub: 'KLAX · AIRSIDE', lat: 33.9425, lon: -118.4081 },
-  { slug: 'bragg', t0: T.bragg, t1: T.cctv, name: 'FORT BRAGG', sub: 'NORTH CAROLINA · POPE FIELD', lat: 35.158, lon: -79.009 },
-];
-
-// Synthetic captures in ACT 2: the first few take the slow "enhance" path, the
-// rest fire rapidly into the contact sheet, then one blows up full frame.
-export const CAPTURE_SLOW = 3;
-export function captureTimes(count) {
-  const out = [];
-  const slot = [T.capStart, T.capStart + 1.6, T.capStart + 3.1];
-  for (let i = 0; i < Math.min(CAPTURE_SLOW, count); i++) out.push(slot[i]);
-  const rapidN = count - CAPTURE_SLOW;
-  // Accelerating rapid-fire: intervals shrink from ~0.32 s to ~0.11 s.
-  let t = T.capRapid;
-  for (let i = 0; i < rapidN; i++) {
-    out.push(t);
-    const k = i / Math.max(1, rapidN - 1);
-    t += 0.12 - 0.08 * k;
-  }
-  return out;
-}
-
-// ------------------------------------------------------------------ helpers
-export const clamp = (x, a = 0, b = 1) => Math.min(b, Math.max(a, x));
-export const lerp = (a, b, t) => a + (b - a) * t;
-export const ramp = (t, a, b) => clamp((t - a) / (b - a));
-export const smooth = (t, a, b) => {
-  const x = ramp(t, a, b);
-  return x * x * (3 - 2 * x);
-};
-export const easeInOut = (x) => (x < 0.5 ? 4 * x * x * x : 1 - Math.pow(-2 * x + 2, 3) / 2);
-export const easeOut = (x) => 1 - Math.pow(1 - x, 3);
-export const easeIn = (x) => x * x * x;
-export const expoOut = (x) => (x >= 1 ? 1 : 1 - Math.pow(2, -10 * x));
-export const expoInOut = (x) =>
-  x <= 0 ? 0 : x >= 1 ? 1 : x < 0.5 ? Math.pow(2, 20 * x - 10) / 2 : (2 - Math.pow(2, -20 * x + 10)) / 2;
-
-// Window: 0 before a, ramps up over `inDur`, holds, ramps down to 0 ending at b.
-export function win(t, a, b, inDur = 0.3, outDur = 0.3) {
-  return Math.min(smooth(t, a, a + inDur), 1 - smooth(t, b - outDur, b));
-}
-
-export function mulberry32(seed) {
-  let a = seed >>> 0;
-  return function () {
-    a = (a + 0x6d2b79f5) >>> 0;
-    let t = a;
-    t = Math.imul(t ^ (t >>> 15), t | 1);
-    t ^= t + Math.imul(t ^ (t >>> 7), t | 61);
-    return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
-  };
-}
-
-export function hash1(n) {
-  const s = Math.sin(n * 127.1 + 311.7) * 43758.5453;
-  return s - Math.floor(s);
-}
-
-// Counter that eases toward `to` and keeps visibly ticking while it does.
-export function count(t, a, b, from, to, curve = expoOut) {
-  return Math.round(lerp(from, to, curve(ramp(t, a, b))));
-}

intro-sequence/tools/city/check.py

@@ -1,79 +0,0 @@
-"""Render city/<slug>/check.png: ground imagery (left) and imagery + OSM overlay (right) for alignment QA.
-
-usage: python3 -I tools/city/check.py nyc boston [--crop x y size]
-"""
-import sys, os, json
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from PIL import Image, ImageDraw
-from geo import CITIES, OUT, CACHE
-
-ROADC = [(255, 60, 60), (255, 150, 40), (255, 220, 40), (200, 255, 80), (255, 255, 255), (160, 160, 160)]
-
-
-def render(slug, S=1400, crop=None):
-    d = os.path.join(OUT, slug)
-    h = CITIES[slug]['half']
-    cx, cy, cs = crop if crop else (0, 0, h)  # center and half-size of view in meters
-    g = Image.open(os.path.join(d, 'ground.jpg')).convert('RGB')
-    G = g.size[0]
-    # crop region of ground in pixels
-    l = (cx - cs + h) / (2 * h) * G
-    t = (h - (cy + cs)) / (2 * h) * G
-    r = (cx + cs + h) / (2 * h) * G
-    b = (h - (cy - cs)) / (2 * h) * G
-    base = g.crop((int(l), int(t), int(r), int(b))).resize((S, S), Image.LANCZOS)
-
-    def P(x, y):
-        return ((x - (cx - cs)) / (2 * cs) * S, ((cy + cs) - y) / (2 * cs) * S)
-
-    ov = base.copy()
-    dr = ImageDraw.Draw(ov, 'RGBA')
-    wp = os.path.join(d, 'water.json')
-    if os.path.exists(wp):
-        for poly in json.load(open(wp))['polys']:
-            for k, ring in enumerate(poly):
-                pts = [P(ring[i], ring[i + 1]) for i in range(0, len(ring), 2)]
-                if len(pts) >= 3:
-                    dr.polygon(pts, outline=(60, 160, 255, 255), fill=(30, 90, 255, 70) if k == 0 else None)
-    for bld in json.load(open(os.path.join(d, 'buildings.json')))['b']:
-        hgt = bld[0]
-        pts = [P(bld[i], bld[i + 1]) for i in range(2, len(bld), 2)]
-        a = min(255, 60 + int(hgt))
-        col = (0, 255, 200, 255) if hgt >= 100 else (255, 0, 220, 255)
-        dr.polygon(pts, outline=col, fill=(col[0], col[1], col[2], 40 if hgt < 100 else 90))
-    for rd in json.load(open(os.path.join(d, 'roads.json')))['roads']:
-        pts = [P(rd[i], rd[i + 1]) for i in range(3, len(rd), 2)]
-        dr.line(pts, fill=ROADC[rd[0]] + (230,), width=2 if rd[0] < 3 else 1)
-    rp = os.path.join(d, 'rail.json')
-    if os.path.exists(rp):
-        for ln in json.load(open(rp))['lines']:
-            c = ln[0]
-            col = tuple(int(c[i:i + 2], 16) for i in (1, 3, 5)) + (255,)
-            pts = [P(ln[i], ln[i + 1]) for i in range(1, len(ln), 2)]
-            dr.line(pts, fill=col, width=3)
-    ep = os.path.join(d, 'extra.json')
-    if os.path.exists(ep):
-        for x, y, nm in json.load(open(ep))['helipads']:
-            px, py = P(x, y)
-            dr.ellipse((px - 7, py - 7, px + 7, py + 7), outline=(255, 255, 0, 255), width=3)
-    out = Image.new('RGB', (S * 2 + 10, S), (0, 0, 0))
-    out.paste(base, (0, 0))
-    out.paste(ov, (S + 10, 0))
-    return out
-
-
-if __name__ == '__main__':
-    args = [a for a in sys.argv[1:] if not a.startswith('--')]
-    crop = None
-    if '--crop' in sys.argv:
-        i = sys.argv.index('--crop')
-        crop = tuple(float(v) for v in sys.argv[i + 1:i + 4])
-        args = [a for a in args if a not in sys.argv[i + 1:i + 4]]
-    for slug in args or list(CITIES):
-        im = render(slug, crop=crop)
-        if crop:
-            p = os.path.join(CACHE, f'{slug}_check_crop_{int(crop[0])}_{int(crop[1])}_{int(crop[2])}.png')
-        else:
-            p = os.path.join(OUT, slug, 'check.png')
-        im.save(p, optimize=True)
-        print('wrote', p)

intro-sequence/tools/city/fetch_imagery.py

@@ -1,107 +0,0 @@
-"""Esri World Imagery mosaic -> local ENU square, 4096^2 + 2048^2 JPEG.
-
-usage: python3 -I tools/city/fetch_imagery.py nyc boston [--zoom 17]
-"""
-import sys, os, math, io, time
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from concurrent.futures import ThreadPoolExecutor
-import numpy as np
-import requests
-from PIL import Image
-from scipy.ndimage import map_coordinates
-from geo import CITIES, OUT, CACHE, Frame
-
-URL = 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}'
-TS = 256
-N = 4096
-SS = 2  # supersample factor before Lanczos downsample
-
-
-def merc_px(lat, lon, z):
-    s = TS * 2 ** z
-    x = (lon + 180.0) / 360.0 * s
-    lr = np.radians(lat)
-    y = (1.0 - np.log(np.tan(lr) + 1.0 / np.cos(lr)) / math.pi) / 2.0 * s
-    return x, y
-
-
-sess = requests.Session()
-sess.headers['User-Agent'] = 'gods-eye-view-intro/1.0 (film asset build)'
-
-
-def get_tile(z, x, y):
-    d = os.path.join(CACHE, 'tiles', str(z), str(x))
-    os.makedirs(d, exist_ok=True)
-    p = os.path.join(d, f'{y}.jpg')
-    if os.path.exists(p) and os.path.getsize(p) > 0:
-        return p, 'cache'
-    last = None
-    for attempt in range(5):
-        try:
-            r = sess.get(URL.format(z=z, x=x, y=y), timeout=60)
-            if r.status_code == 200 and r.content[:2] in (b'\xff\xd8', b'\x89P'):
-                with open(p, 'wb') as f:
-                    f.write(r.content)
-                return p, 'net'
-            last = f'HTTP {r.status_code} {r.headers.get("content-type")}'
-        except Exception as e:  # noqa
-            last = str(e)[:120]
-        time.sleep(1.5 * (attempt + 1))
-    raise RuntimeError(f'tile {z}/{x}/{y} failed: {last}')
-
-
-def build(slug, z):
-    c = CITIES[slug]
-    F = Frame(**c)
-    h = F.half
-    s, w, n, e = F.bbox(h * 1.02)
-    x0, y0 = merc_px(n, w, z)
-    x1, y1 = merc_px(s, e, z)
-    tx0, ty0 = int(x0 // TS), int(y0 // TS)
-    tx1, ty1 = int(x1 // TS), int(y1 // TS)
-    tiles = [(tx, ty) for ty in range(ty0, ty1 + 1) for tx in range(tx0, tx1 + 1)]
-    print(f'== {slug} z{z}: {tx1-tx0+1}x{ty1-ty0+1} = {len(tiles)} tiles')
-    with ThreadPoolExecutor(8) as ex:
-        res = list(ex.map(lambda t: get_tile(z, t[0], t[1]), tiles))
-    print(f'  net {sum(1 for r in res if r[1]=="net")} cache {sum(1 for r in res if r[1]=="cache")}')
-    W, H = (tx1 - tx0 + 1) * TS, (ty1 - ty0 + 1) * TS
-    mos = np.zeros((H, W, 3), np.uint8)
-    for (tx, ty), (p, _) in zip(tiles, res):
-        im = np.asarray(Image.open(p).convert('RGB'))
-        mos[(ty - ty0) * TS:(ty - ty0 + 1) * TS, (tx - tx0) * TS:(tx - tx0 + 1) * TS] = im
-    M = N * SS
-    t = (np.arange(M) + 0.5) / M
-    xs = -h + 2 * h * t           # east
-    ys = h - 2 * h * t            # north, row 0 at top
-    lon = F.lon0 + xs / F.kx
-    lat = F.lat0 + ys / F.ky
-    px, _ = merc_px(np.full_like(lon, F.lat0), lon, z)
-    _, py = merc_px(lat, np.full_like(lat, F.lon0), z)
-    px = px - tx0 * TS - 0.5      # pixel centers
-    py = py - ty0 * TS - 0.5
-    PX, PY = np.meshgrid(px, py)
-    out = np.empty((M, M, 3), np.uint8)
-    for ch in range(3):
-        out[..., ch] = np.clip(map_coordinates(mos[..., ch].astype(np.float32), [PY, PX], order=1,
-                                               mode='nearest'), 0, 255).astype(np.uint8)
-    del PX, PY
-    img = Image.fromarray(out)
-    if SS != 1:
-        img = img.resize((N, N), Image.LANCZOS)
-    d = os.path.join(OUT, slug)
-    os.makedirs(d, exist_ok=True)
-    img.save(os.path.join(d, 'ground.jpg'), quality=90, optimize=True)
-    img.resize((2048, 2048), Image.LANCZOS).save(os.path.join(d, 'ground_2k.jpg'), quality=90, optimize=True)
-    img.resize((768, 768), Image.LANCZOS).save(os.path.join(CACHE, f'{slug}_ground_preview.jpg'), quality=85)
-    mpp_src = 156543.03392 * math.cos(math.radians(F.lat0)) / 2 ** z
-    print(f'  wrote ground.jpg {os.path.getsize(os.path.join(d, "ground.jpg"))/1e6:.1f}MB; '
-          f'source {mpp_src:.2f} m/px, output {2*h/N:.2f} m/px')
-
-
-if __name__ == '__main__':
-    args = [a for a in sys.argv[1:] if not a.startswith('--')]
-    z = 17
-    if '--zoom' in sys.argv:
-        z = int(sys.argv[sys.argv.index('--zoom') + 1])
-    for slug in args or list(CITIES):
-        build(slug, z)

intro-sequence/tools/city/fetch_osm.py

@@ -1,495 +0,0 @@
-"""Fetch OSM buildings / roads / water / extras for the city scenes and write city/<slug>/*.json.
-
-usage: python3 -I tools/city/fetch_osm.py nyc boston
-"""
-import sys, os, math, re, json
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from geo import (CITIES, OUT, Frame, overpass, rdp, rdp_ring, area, centroid, open_ring,
-                 assemble_rings, clip_polyline, clip_polygon, flat, r1, write_json, dedupe)
-
-FT = 0.3048
-
-
-def parse_len(v):
-    """Parse an OSM length tag to meters. Returns None if unparseable."""
-    if v is None:
-        return None
-    s = str(v).strip().lower().replace(',', '.')
-    s = s.split(';')[0].strip()
-    m = re.match(r"^(\d+(?:\.\d+)?)\s*'\s*(?:(\d+(?:\.\d+)?)\s*\"?)?$", s)  # 12'6"
-    if m:
-        return float(m.group(1)) * FT + (float(m.group(2)) * 0.0254 if m.group(2) else 0)
-    m = re.match(r'^(-?\d+(?:\.\d+)?)\s*(m|meters?|metres?|ft|feet|foot)?$', s)
-    if not m:
-        return None
-    val = float(m.group(1))
-    u = m.group(2) or 'm'
-    if u in ('ft', 'feet', 'foot'):
-        val *= FT
-    return val
-
-
-def parse_num(v):
-    if v is None:
-        return None
-    m = re.match(r'^\s*(\d+(?:\.\d+)?)', str(v).replace(',', '.'))
-    return float(m.group(1)) if m else None
-
-
-HOUSE = {'house', 'detached', 'semidetached_house', 'terrace', 'bungalow', 'cabin', 'shed', 'garage',
-         'garages', 'hut', 'carport', 'static_caravan'}
-
-
-def building_height(t):
-    """Returns (height, min_height, source) where source in h/lv/def."""
-    h = parse_len(t.get('height'))
-    src = 'h'
-    if h is None or h <= 0:
-        lv = parse_num(t.get('building:levels'))
-        if lv is not None and lv > 0:
-            h = lv * 3.2 + (parse_num(t.get('roof:levels')) or 0) * 3.2
-            src = 'lv'
-        else:
-            b = t.get('building', 'yes')
-            h = 7.0 if b in HOUSE else 12.0
-            if b in ('shed', 'garage', 'garages', 'carport', 'hut'):
-                h = 3.5
-            src = 'def'
-    mh = parse_len(t.get('min_height'))
-    if mh is None:
-        ml = parse_num(t.get('building:min_level'))
-        mh = ml * 3.2 if ml else 0.0
-    mh = max(0.0, mh)
-    if mh >= h:
-        mh = 0.0
-    return h, mh, src
-
-
-def ll_list(geom):
-    return [(g['lat'], g['lon']) for g in geom if g is not None]
-
-
-# ------------------------------------------------------------------ buildings
-
-def buildings(slug, F):
-    h = F.half
-    s, w, n, e = F.bbox(h + 60)
-    # tile the bbox to keep each response manageable
-    T = 2 if h > 3000 else 1
-    elems = {}
-    for i in range(T):
-        for j in range(T):
-            ts = s + (n - s) * i / T
-            tn = s + (n - s) * (i + 1) / T
-            tw = w + (e - w) * j / T
-            te = w + (e - w) * (j + 1) / T
-            bb = f'{ts:.6f},{tw:.6f},{tn:.6f},{te:.6f}'
-            q = (f'[out:json][timeout:180];(way["building"]({bb});'
-                 f'relation["building"]["type"="multipolygon"]({bb}););out geom;')
-            print(f' buildings tile {i},{j}')
-            d = overpass(q, f'{slug}_bld_{i}{j}')
-            for el in d['elements']:
-                elems[(el['type'], el['id'])] = el
-    print(f'  {len(elems)} building elements')
-    out = []
-    stats = dict(h=0, lv=0, df=0, dropped_small=0, dropped_out=0, rel_rings=0)
-    for (typ, _id), el in elems.items():
-        t = el.get('tags', {})
-        if t.get('building') in ('no', 'construction_site'):
-            continue
-        rings = []
-        if typ == 'way':
-            if 'geometry' not in el:
-                continue
-            g = ll_list(el['geometry'])
-            if len(g) >= 4 and g[0] == g[-1]:
-                rings.append(g)
-        else:
-            outers = [ll_list(m['geometry']) for m in el.get('members', [])
-                      if m['type'] == 'way' and m.get('role') == 'outer' and 'geometry' in m]
-            rings = assemble_rings(outers)
-            stats['rel_rings'] += len(rings)
-        hgt, mh, src = building_height(t)
-        for g in rings:
-            pts = open_ring([F.xy(la, lo) for la, lo in g])
-            pts = rdp_ring(pts, 0.5)
-            if len(pts) < 3 or abs(area(pts)) < 8:
-                stats['dropped_small'] += 1
-                continue
-            cx, cy = centroid(pts)
-            if abs(cx) > h or abs(cy) > h:
-                stats['dropped_out'] += 1
-                continue
-            stats[{'h': 'h', 'lv': 'lv', 'def': 'df'}[src]] += 1
-            out.append((cx * cx + cy * cy, [r1(hgt), r1(mh)] + flat(pts)))
-    out.sort(key=lambda a: a[0])
-    b = [o[1] for o in out]
-    write_json(os.path.join(OUT, slug, 'buildings.json'), {'count': len(b), 'b': b})
-    hs = sorted(x[0] for x in b)
-    print(f'  buildings {len(b)}  height-src tag={stats["h"]} levels={stats["lv"]} default={stats["df"]} '
-          f'dropped small={stats["dropped_small"]} outside={stats["dropped_out"]}  tallest={hs[-5:]}')
-    return dict(count=len(b), height_from_tag=stats['h'], height_from_levels=stats['lv'],
-                height_default=stats['df'], tallest_m=hs[-1] if hs else None)
-
-
-# ------------------------------------------------------------------ roads
-
-CLS = {'motorway': 0, 'trunk': 0, 'primary': 1, 'secondary': 2, 'tertiary': 3,
-       'residential': 4, 'unclassified': 4, 'service': 5}
-DEF_LANES = {0: 3, 1: 2, 2: 2, 3: 2, 4: 1, 5: 1}
-
-
-def plen(pts):
-    return sum(math.hypot(pts[i + 1][0] - pts[i][0], pts[i + 1][1] - pts[i][1]) for i in range(len(pts) - 1))
-
-
-def roads(slug, F):
-    h = F.half
-    s, w, n, e = F.bbox(h + 100)
-    bb = f'{s:.6f},{w:.6f},{n:.6f},{e:.6f}'
-    q = (f'[out:json][timeout:180];way["highway"~"^(motorway|trunk|primary|secondary|tertiary|residential|'
-         f'unclassified|service|motorway_link|trunk_link|primary_link|secondary_link|tertiary_link)$"]({bb});out geom;')
-    print(' roads')
-    d = overpass(q, f'{slug}_roads')
-    out = []
-    cnt = [0] * 6
-    tunnels = 0
-    short_service = 0
-    for el in d['elements']:
-        t = el.get('tags', {})
-        hw = t['highway']
-        if t.get('area') == 'yes':
-            continue
-        if t.get('tunnel') in ('yes', 'covered') or t.get('layer', '0').startswith('-') and t.get('tunnel'):
-            tunnels += 1
-            continue
-        pts = [F.xy(la, lo) for la, lo in ll_list(el.get('geometry', []))]
-        pts = dedupe(pts)
-        if len(pts) < 2:
-            continue
-        if hw.endswith('_link'):
-            c = 5
-        else:
-            c = CLS[hw]
-        if hw == 'service' and plen(pts) <= 80:
-            short_service += 1
-            continue
-        ow = t.get('oneway', '')
-        oneway = 0
-        if ow in ('yes', '1', 'true'):
-            oneway = 1
-        elif ow == '-1':
-            oneway = 1
-            pts = pts[::-1]
-        elif ow == 'no':
-            oneway = 0
-        elif hw in ('motorway', 'motorway_link') or t.get('junction') in ('roundabout', 'circular'):
-            oneway = 1
-        ln = parse_num(t.get('lanes'))
-        lanes = int(ln) if ln else DEF_LANES[c]
-        for piece in clip_polyline(pts, -h, -h, h, h):
-            piece = rdp(piece, 1.0)
-            if len(piece) < 2 or plen(piece) < 1:
-                continue
-            out.append([c, oneway, lanes] + flat(piece))
-            cnt[c] += 1
-    write_json(os.path.join(OUT, slug, 'roads.json'), {'roads': out})
-    print(f'  roads {len(out)} by class {cnt}  (dropped tunnels {tunnels}, short service {short_service})')
-    return dict(count=len(out), by_class=cnt, dropped_tunnel_ways=tunnels, dropped_short_service=short_service)
-
-
-# ------------------------------------------------------------------ water
-
-def coast_water(slug, F, h):
-    """Build water polygons inside the square from natural=coastline (land left, water right)."""
-    s, w, n, e = F.bbox(h * 1.6)
-    bb = f'{s:.6f},{w:.6f},{n:.6f},{e:.6f}'
-    q = f'[out:json][timeout:180];way["natural"="coastline"]({bb});out geom;'
-    print(' coastline')
-    d = overpass(q, f'{slug}_coast')
-    ways = [[F.xy(la, lo) for la, lo in ll_list(el['geometry'])] for el in d['elements'] if 'geometry' in el]
-    # directional merge into chains
-    chains = []
-    pool = [wy for wy in ways if len(wy) >= 2]
-    while pool:
-        cur = pool.pop()
-        grown = True
-        while grown and cur[0] != cur[-1]:
-            grown = False
-            for i, wy in enumerate(pool):
-                if wy[0] == cur[-1]:
-                    cur = cur + wy[1:]
-                elif wy[-1] == cur[0]:
-                    cur = wy + cur[1:]
-                else:
-                    continue
-                pool.pop(i)
-                grown = True
-                break
-        chains.append(cur)
-    eps = 1e-6
-
-    def on_edge(p):
-        return abs(abs(p[0]) - h) < 1e-3 or abs(abs(p[1]) - h) < 1e-3
-
-    def spos(p):  # clockwise perimeter coordinate from top-left
-        x, y = p
-        if abs(y - h) < 1e-3:
-            return x + h
-        if abs(x - h) < 1e-3:
-            return 2 * h + (h - y)
-        if abs(y + h) < 1e-3:
-            return 4 * h + (h - x)
-        return 6 * h + (y + h)
-
-    corners = [(0.0, (-h, h)), (2 * h, (h, h)), (4 * h, (h, -h)), (6 * h, (-h, -h))]
-    pieces, islands, bad = [], [], 0
-    for ch in chains:
-        closed = ch[0] == ch[-1]
-        inside_all = all(abs(x) <= h and abs(y) <= h for x, y in ch)
-        if closed and inside_all:
-            islands.append(open_ring(ch))
-            continue
-        for pc in clip_polyline(ch, -h, -h, h, h):
-            if on_edge(pc[0]) and on_edge(pc[-1]):
-                pieces.append(pc)
-            else:
-                bad += 1
-    polys = []
-    if pieces:
-        used = [False] * len(pieces)
-        starts = [spos(p[0]) for p in pieces]
-        for k in range(len(pieces)):
-            if used[k]:
-                continue
-            ring = []
-            cur = k
-            guard = 0
-            while True:
-                used[cur] = True
-                ring += pieces[cur]
-                se = spos(pieces[cur][-1])
-                # next entry clockwise from se
-                best, bd = None, None
-                for m in range(len(pieces)):
-                    dd = (starts[m] - se) % (8 * h)
-                    if bd is None or dd < bd:
-                        best, bd = m, dd
-                # add corners passed between se and se+bd
-                for cs, cp in sorted(corners, key=lambda c: (c[0] - se) % (8 * h)):
-                    if 0 < (cs - se) % (8 * h) < bd:
-                        ring.append(cp)
-                cur = best
-                guard += 1
-                if cur == k or guard > len(pieces) + 2:
-                    break
-                if used[cur]:
-                    break
-            polys.append([dedupe(open_ring(ring))])
-    # attach islands (land holes) to the containing water polygon
-    def pip(pt, ring):
-        x, y = pt
-        c = False
-        for i in range(len(ring)):
-            x1, y1 = ring[i]
-            x2, y2 = ring[i - 1]
-            if (y1 > y) != (y2 > y) and x < (x2 - x1) * (y - y1) / (y2 - y1) + x1:
-                c = not c
-        return c
-    for isl in islands:
-        if abs(area(isl)) < 50:
-            continue
-        for p in polys:
-            if pip(isl[0], p[0]):
-                p.append(isl)
-                break
-    print(f'  coastline chains {len(chains)} pieces {len(pieces)} islands {len(islands)} '
-          f'water polys {len(polys)} (unclosed pieces skipped {bad})')
-    return polys, bad
-
-
-def water(slug, F):
-    h = F.half
-    s, w, n, e = F.bbox(h + 50)
-    bb = f'{s:.6f},{w:.6f},{n:.6f},{e:.6f}'
-    q = (f'[out:json][timeout:180];(way["natural"="water"]({bb});relation["natural"="water"]({bb});'
-         f'way["waterway"="riverbank"]({bb});relation["waterway"="riverbank"]({bb}););out geom;')
-    print(' water areas')
-    d = overpass(q, f'{slug}_water')
-    polys = []
-    for el in d['elements']:
-        t = el.get('tags', {})
-        if t.get('water') in ('pond', 'reflecting_pool', 'fountain', 'basin', 'reservoir') and el['type'] == 'way':
-            pass  # keep small ponds too; they are real water
-        if el['type'] == 'way':
-            if 'geometry' not in el:
-                continue
-            g = ll_list(el['geometry'])
-            if g[0] != g[-1]:
-                continue
-            outers, inners = [g], []
-        else:
-            mem = [m for m in el.get('members', []) if m['type'] == 'way' and 'geometry' in m]
-            outers = assemble_rings([ll_list(m['geometry']) for m in mem if m.get('role') == 'outer'])
-            inners = assemble_rings([ll_list(m['geometry']) for m in mem if m.get('role') == 'inner'])
-        inn_xy = [open_ring([F.xy(*p) for p in r]) for r in inners]
-        for o in outers:
-            ring = open_ring([F.xy(*p) for p in o])
-            ring = clip_polygon(ring, -h, -h, h, h)
-            ring = rdp_ring(open_ring(ring), 1.0)
-            if len(ring) < 3 or abs(area(ring)) < 20:
-                continue
-            p = [ring]
-            for ir in inn_xy:
-                ir2 = rdp_ring(open_ring(clip_polygon(ir, -h, -h, h, h)), 1.0)
-                if len(ir2) >= 3 and abs(area(ir2)) >= 20:
-                    p.append(ir2)
-            polys.append(('water', p))
-    n_area = len(polys)
-    cpolys, bad = coast_water(slug, F, h)
-    for p in cpolys:
-        p2 = [rdp_ring(r, 1.0) for r in p]
-        p2 = [r for r in p2 if len(r) >= 3]
-        if p2:
-            polys.append(('coast', p2))
-    out = [[flat(r) for r in p] for _, p in polys]
-    src = [s_ for s_, _ in polys]
-    write_json(os.path.join(OUT, slug, 'water.json'),
-               {'count': len(out), 'format': 'polys[i] = [outerRing, holeRing...], rings flat x,y', 'src': src,
-                'polys': out})
-    print(f'  water polys {len(out)} (osm water areas {n_area}, coastline-derived {len(cpolys)})')
-    return dict(count=len(out), water_areas=n_area, coastline_polys=len(cpolys), coastline_unclosed_pieces=bad)
-
-
-# ------------------------------------------------------------------ extras
-
-KNOWN_HELI = ['Downtown Manhattan Heliport', 'West 30th Street Heliport', 'East 34th Street Heliport']
-
-
-def nyc_extra(slug, F):
-    s, w, n, e = F.bbox(F.half + 2000)
-    bb = f'{s:.6f},{w:.6f},{n:.6f},{e:.6f}'
-    q = (f'[out:json][timeout:180];(nwr["aeroway"~"^(helipad|heliport)$"]({bb});'
-         f'nwr["name"~"heliport|helistop|helipad",i]({bb}););out center tags;')
-    print(' helipads')
-    d = overpass(q, f'{slug}_heli2')
-    pads = []
-    for el in d['elements']:
-        t = el.get('tags', {})
-        if el['type'] == 'node':
-            la, lo = el['lat'], el['lon']
-        else:
-            c = el.get('center')
-            if not c:
-                continue
-            la, lo = c['lat'], c['lon']
-        x, y = F.xy(la, lo)
-        name = t.get('name') or t.get('operator') or ''
-        kind = t.get('aeroway') or ('heliport' if 'heliport' in name.lower() else 'named')
-        pads.append(dict(x=r1(x), y=r1(y), name=name, kind=kind, ref=t.get('ref', ''), osm=f"{el['type']}/{el['id']}",
-                         tags={k: v for k, v in t.items() if k in ('aeroway', 'faa', 'operator', 'man_made', 'amenity')},
-                         inside=abs(x) <= F.half and abs(y) <= F.half))
-    pads.sort(key=lambda p: (p['kind'] != 'heliport', p['x'] ** 2 + p['y'] ** 2))
-    for p in pads:
-        print(f"   {p['kind']:9s} {p['x']:8.1f} {p['y']:8.1f} {'in ' if p['inside'] else 'OUT'} {p['name']}")
-    found = {k: [p for p in pads if p['kind'] == 'heliport' and k.split()[0].lower() in p['name'].lower()
-                 and 'heliport' in p['name'].lower()] for k in KNOWN_HELI}
-    helipads = [[p['x'], p['y'], p['name'] or (f"{p['kind']} {p['ref']}".strip())] for p in pads]
-    write_json(os.path.join(OUT, slug, 'extra.json'),
-               {'helipads': helipads,
-                'detail': pads,
-                'note': 'aeroway=helipad|heliport from OSM in a bbox 2 km wider than the scene; '
-                        'detail[].inside says whether the point is inside the scene square'})
-    return dict(helipad_points=len(pads), named_heliports={k: (v[0]['x'], v[0]['y'], v[0]['inside']) if v else None
-                                                           for k, v in found.items()})
-
-
-def boston_rail(slug, F):
-    h = F.half
-    s, w, n, e = F.bbox(h + 100)
-    bb = f'{s:.6f},{w:.6f},{n:.6f},{e:.6f}'
-    q = (f'[out:json][timeout:180];(relation["route"~"^(subway|light_rail|train|tram)$"]({bb});'
-         f'way["railway"~"^(subway|light_rail|rail|tram)$"]({bb}););out geom;')
-    print(' rail')
-    d = overpass(q, f'{slug}_rail')
-    ways = {el['id']: el for el in d['elements'] if el['type'] == 'way'}
-    rels = [el for el in d['elements'] if el['type'] == 'relation']
-    lines, seen = [], set()
-    rel_names = []
-    for r in rels:
-        t = r.get('tags', {})
-        col = (t.get('colour') or t.get('color') or '').strip()
-        if not re.match(r'^#?[0-9a-fA-F]{6}$', col):
-            col = {'subway': '#888888', 'light_rail': '#00843D', 'tram': '#00843D', 'train': '#80276C'}[t['route']]
-        if not col.startswith('#'):
-            col = '#' + col
-        col = col.upper()
-        rel_names.append(f"{t.get('route')}:{t.get('name', t.get('ref', ''))}:{col}")
-        for m in r.get('members', []):
-            if m['type'] != 'way' or 'geometry' not in m or m.get('role') in ('platform', 'stop'):
-                continue
-            wt = ways.get(m['ref'], {}).get('tags', {})
-            if wt.get('public_transport') or wt.get('railway') == 'platform':
-                continue
-            key = (m['ref'], col)
-            if key in seen:
-                continue
-            seen.add(key)
-            pts = [F.xy(la, lo) for la, lo in ll_list(m['geometry'])]
-            for pc in clip_polyline(dedupe(pts), -h, -h, h, h):
-                pc = rdp(pc, 1.0)
-                if len(pc) >= 2:
-                    lines.append([col] + flat(pc))
-    covered = {k[0] for k in seen}
-    extra = 0
-    for wid, el in ways.items():
-        t = el.get('tags', {})
-        if wid in covered or t.get('service') or 'geometry' not in el:
-            continue
-        pts = [F.xy(la, lo) for la, lo in ll_list(el['geometry'])]
-        for pc in clip_polyline(dedupe(pts), -h, -h, h, h):
-            pc = rdp(pc, 1.0)
-            if len(pc) >= 2:
-                lines.append(['#7F7F7F'] + flat(pc))
-                extra += 1
-    write_json(os.path.join(OUT, slug, 'rail.json'),
-               {'lines': lines, 'routes': sorted(set(rel_names)),
-                'note': 'OSM route relations (subway/light_rail/train/tram) colour tags; #7F7F7F = railway way not in any route relation'})
-    print(f'  rail lines {len(lines)} from {len(rels)} route relations (+{extra} unassigned way pieces)')
-    for nm in sorted(set(rel_names)):
-        print('   ', nm)
-    return dict(polylines=len(lines), route_relations=len(rels), unassigned_pieces=extra)
-
-
-def main():
-    slugs = sys.argv[1:] or list(CITIES)
-    report = {}
-    for slug in slugs:
-        c = CITIES[slug]
-        F = Frame(**c)
-        print(f'== {slug}')
-        write_json(os.path.join(OUT, slug, 'meta.json'),
-                   {'slug': slug, 'name': c['name'], 'lat0': c['lat0'], 'lon0': c['lon0'], 'half': c['half'],
-                    'frame': 'ENU m',
-                    'projection': 'x=(lon-lon0)*cos(lat0)*111320, y=(lat-lat0)*110540',
-                    'source': 'OpenStreetMap contributors (ODbL) via Overpass; imagery Esri World Imagery'})
-        r = {}
-        r['buildings'] = buildings(slug, F)
-        r['roads'] = roads(slug, F)
-        try:
-            r['water'] = water(slug, F)
-        except Exception as ex:  # noqa
-            print('  WATER FAILED', ex)
-            r['water'] = f'failed: {ex}'
-        if slug == 'nyc':
-            r['extra'] = nyc_extra(slug, F)
-        if slug == 'boston':
-            r['rail'] = boston_rail(slug, F)
-        report[slug] = r
-    print(json.dumps(report, indent=1))
-    with open(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'cache', 'osm_report.json'), 'w') as f:
-        json.dump(report, f, indent=1)
-
-
-if __name__ == '__main__':
-    main()

intro-sequence/tools/city/geo.py

@@ -1,288 +0,0 @@
-"""Shared helpers for the city scene geodata fetchers (ENU frame, Overpass, geometry)."""
-import json, math, os, time, hashlib
-import requests
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-ROOT = os.path.abspath(os.path.join(HERE, '..', '..'))
-OUT = os.path.join(ROOT, 'city')
-CACHE = os.path.join(HERE, 'cache')
-os.makedirs(CACHE, exist_ok=True)
-
-CITIES = {
-    'nyc': dict(name='New York — Midtown / Chelsea / Lower Manhattan', lat0=40.7400, lon0=-73.9900, half=3500),
-    'boston': dict(name='Boston — Downtown / Back Bay / Cambridge / Seaport', lat0=42.3555, lon0=-71.0605, half=3200),
-}
-
-OVERPASS = [
-    'https://overpass-api.de/api/interpreter',
-    'https://overpass.kumi.systems/api/interpreter',
-    'https://overpass.private.coffee/api/interpreter',
-    'https://maps.mail.ru/osm/tools/overpass/api/interpreter',
-]
-
-
-class Frame:
-    def __init__(self, lat0, lon0, half, **_):
-        self.lat0, self.lon0, self.half = lat0, lon0, half
-        self.kx = math.cos(math.radians(lat0)) * 111320.0
-        self.ky = 110540.0
-
-    def xy(self, lat, lon):
-        return ((lon - self.lon0) * self.kx, (lat - self.lat0) * self.ky)
-
-    def ll(self, x, y):
-        return (self.lat0 + y / self.ky, self.lon0 + x / self.kx)
-
-    def bbox(self, half=None):
-        h = self.half if half is None else half
-        s, w = self.ll(-h, -h)
-        n, e = self.ll(h, h)
-        return s, w, n, e
-
-
-def overpass(query, tag):
-    """Run an Overpass query, caching the raw JSON response under cache/osm_<tag>.json."""
-    path = os.path.join(CACHE, f'osm_{tag}.json')
-    if os.path.exists(path):
-        with open(path) as f:
-            return json.load(f)
-    last = None
-    for attempt in range(8):
-        for url in OVERPASS:
-            try:
-                t = time.time()
-                r = requests.post(url, data={'data': query}, timeout=400)
-                if r.status_code != 200:
-                    last = f'{url} HTTP {r.status_code}'
-                    print('  overpass fail', last)
-                    continue
-                d = r.json()
-                if 'remark' in d and 'error' in d.get('remark', '').lower():
-                    last = f'{url} remark {d["remark"][:200]}'
-                    print('  overpass remark', last)
-                    continue
-                print(f'  overpass ok {url} {len(r.content)/1e6:.1f}MB {time.time()-t:.0f}s {len(d["elements"])} el')
-                with open(path, 'w') as f:
-                    json.dump(d, f)
-                return d
-            except Exception as e:  # noqa
-                last = f'{url} {type(e).__name__}: {str(e)[:200]}'
-                print('  overpass fail', last)
-        time.sleep(15 + 15 * attempt)
-    raise RuntimeError('all overpass endpoints failed: ' + str(last))
-
-
-# ---------------- geometry ----------------
-
-def rdp(pts, eps):
-    """Douglas-Peucker on an open polyline (list of (x,y))."""
-    n = len(pts)
-    if n < 3:
-        return list(pts)
-    keep = [False] * n
-    keep[0] = keep[-1] = True
-    stack = [(0, n - 1)]
-    while stack:
-        a, b = stack.pop()
-        ax, ay = pts[a]
-        bx, by = pts[b]
-        dx, dy = bx - ax, by - ay
-        L = math.hypot(dx, dy)
-        dmax, idx = -1.0, -1
-        for i in range(a + 1, b):
-            px, py = pts[i]
-            if L < 1e-9:
-                d = math.hypot(px - ax, py - ay)
-            else:
-                d = abs(dx * (ay - py) - dy * (ax - px)) / L
-            if d > dmax:
-                dmax, idx = d, i
-        if dmax > eps and idx > 0:
-            keep[idx] = True
-            stack.append((a, idx))
-            stack.append((idx, b))
-    return [p for p, k in zip(pts, keep) if k]
-
-
-def rdp_ring(ring, eps):
-    """Douglas-Peucker for a closed ring given without the repeated closing vertex."""
-    n = len(ring)
-    if n < 4:
-        return list(ring)
-    # split at vertex 0 and the vertex farthest from it
-    x0, y0 = ring[0]
-    far = max(range(n), key=lambda i: (ring[i][0] - x0) ** 2 + (ring[i][1] - y0) ** 2)
-    a = rdp(ring[0:far + 1], eps)
-    b = rdp(ring[far:] + [ring[0]], eps)
-    return a[:-1] + b[:-1]
-
-
-def area(ring):
-    s = 0.0
-    n = len(ring)
-    for i in range(n):
-        x1, y1 = ring[i]
-        x2, y2 = ring[(i + 1) % n]
-        s += x1 * y2 - x2 * y1
-    return s / 2.0
-
-
-def centroid(ring):
-    a = area(ring)
-    if abs(a) < 1e-9:
-        xs = [p[0] for p in ring]
-        ys = [p[1] for p in ring]
-        return sum(xs) / len(xs), sum(ys) / len(ys)
-    cx = cy = 0.0
-    n = len(ring)
-    for i in range(n):
-        x1, y1 = ring[i]
-        x2, y2 = ring[(i + 1) % n]
-        c = x1 * y2 - x2 * y1
-        cx += (x1 + x2) * c
-        cy += (y1 + y2) * c
-    return cx / (6 * a), cy / (6 * a)
-
-
-def dedupe(pts):
-    out = []
-    for p in pts:
-        if not out or p != out[-1]:
-            out.append(p)
-    return out
-
-
-def open_ring(pts):
-    pts = dedupe(pts)
-    if len(pts) > 1 and pts[0] == pts[-1]:
-        pts = pts[:-1]
-    return pts
-
-
-def assemble_rings(ways):
-    """Join way coordinate lists (lists of (lat,lon) tuples) into closed rings by matching endpoints."""
-    rings = []
-    pool = [list(w) for w in ways if len(w) >= 2]
-    while pool:
-        cur = pool.pop()
-        changed = True
-        while cur[0] != cur[-1] and changed:
-            changed = False
-            for i, w in enumerate(pool):
-                if w[0] == cur[-1]:
-                    cur = cur + w[1:]
-                elif w[-1] == cur[-1]:
-                    cur = cur + w[::-1][1:]
-                elif w[-1] == cur[0]:
-                    cur = w + cur[1:]
-                elif w[0] == cur[0]:
-                    cur = w[::-1] + cur[1:]
-                else:
-                    continue
-                pool.pop(i)
-                changed = True
-                break
-        if cur[0] == cur[-1] and len(cur) >= 4:
-            rings.append(cur)
-    return rings
-
-
-def clip_polyline(pts, xmin, ymin, xmax, ymax):
-    """Clip a polyline to a rectangle (Liang-Barsky per segment); returns list of pieces."""
-    pieces, cur = [], []
-
-    def inside(p):
-        return xmin <= p[0] <= xmax and ymin <= p[1] <= ymax
-
-    for i in range(len(pts) - 1):
-        (x1, y1), (x2, y2) = pts[i], pts[i + 1]
-        dx, dy = x2 - x1, y2 - y1
-        t0, t1 = 0.0, 1.0
-        ok = True
-        for p, q in ((-dx, x1 - xmin), (dx, xmax - x1), (-dy, y1 - ymin), (dy, ymax - y1)):
-            if p == 0:
-                if q < 0:
-                    ok = False
-                    break
-            else:
-                t = q / p
-                if p < 0:
-                    if t > t1:
-                        ok = False
-                        break
-                    t0 = max(t0, t)
-                else:
-                    if t < t0:
-                        ok = False
-                        break
-                    t1 = min(t1, t)
-        if not ok:
-            if cur:
-                pieces.append(cur)
-                cur = []
-            continue
-        a = (x1, y1) if t0 == 0.0 else (x1 + t0 * dx, y1 + t0 * dy)
-        b = (x2, y2) if t1 == 1.0 else (x1 + t1 * dx, y1 + t1 * dy)
-        if not cur:
-            cur = [a, b]
-        else:
-            if cur[-1] != a:
-                pieces.append(cur)
-                cur = [a, b]
-            else:
-                cur.append(b)
-        if t1 < 1.0:
-            pieces.append(cur)
-            cur = []
-    if cur:
-        pieces.append(cur)
-    return [dedupe(p) for p in pieces if len(dedupe(p)) >= 2]
-
-
-def clip_polygon(ring, xmin, ymin, xmax, ymax):
-    """Sutherland-Hodgman clip of a ring to a rectangle."""
-    def clip(poly, inside, inter):
-        out = []
-        n = len(poly)
-        for i in range(n):
-            cur, prev = poly[i], poly[i - 1]
-            if inside(cur):
-                if not inside(prev):
-                    out.append(inter(prev, cur))
-                out.append(cur)
-            elif inside(prev):
-                out.append(inter(prev, cur))
-        return out
-
-    def ix(xc):
-        return lambda p, q: (xc, p[1] + (q[1] - p[1]) * (xc - p[0]) / (q[0] - p[0]))
-
-    def iy(yc):
-        return lambda p, q: (p[0] + (q[0] - p[0]) * (yc - p[1]) / (q[1] - p[1]), yc)
-
-    poly = list(ring)
-    for ins, inter in ((lambda p: p[0] >= xmin, ix(xmin)), (lambda p: p[0] <= xmax, ix(xmax)),
-                       (lambda p: p[1] >= ymin, iy(ymin)), (lambda p: p[1] <= ymax, iy(ymax))):
-        if not poly:
-            break
-        poly = clip(poly, ins, inter)
-    return dedupe(poly)
-
-
-def r1(v):
-    return round(v, 1)
-
-
-def flat(pts):
-    out = []
-    for x, y in pts:
-        out.append(r1(x))
-        out.append(r1(y))
-    return out
-
-
-def write_json(path, obj):
-    os.makedirs(os.path.dirname(path), exist_ok=True)
-    with open(path, 'w') as f:
-        json.dump(obj, f, separators=(',', ':'))
-    print(f'  wrote {os.path.relpath(path, ROOT)} {os.path.getsize(path)/1e6:.2f}MB')

intro-sequence/tools/city2/build_scene.py

@@ -1,188 +0,0 @@
-"""Build real-geodata scene packs.  usage: python3 build_scene.py lax|bragg|everest [steps...]
-steps: osm ground elev check (default all)"""
-import json
-import os
-import sys
-
-import numpy as np
-from PIL import Image, ImageDraw
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-import common as C  # noqa
-
-SCENES = {
-    "lax": dict(name="Los Angeles International Airport", lat0=33.9425, lon0=-118.4081, half=3500, z=17),
-    "bragg": dict(name="Fort Bragg, North Carolina", lat0=35.1580, lon0=-79.0090, half=6000, z=16),
-    "everest": dict(name="Mount Everest / Khumbu", lat0=27.9881, lon0=86.9250, half=15000, z=15),
-}
-
-NT = {"lax": 4, "bragg": 6}
-AERO_Q = '[out:json][timeout:600];nwr["aeroway"~"^(runway|taxiway|apron|terminal|gate|parking_position)$"]({bb});out geom;'
-BLDG_Q = '[out:json][timeout:300];(way["building"]({bb});relation["building"]({bb}););out geom;'
-ROAD_Q = ('[out:json][timeout:300];way["highway"~"^(motorway|trunk|primary|secondary|tertiary|'
-          'residential|unclassified|living_street|motorway_link|trunk_link|primary_link|secondary_link|tertiary_link|service)$"]({bb});out geom;')
-MIL_Q = '[out:json][timeout:600];(way["landuse"="military"]({bb});relation["landuse"="military"]({bb});way["military"]({bb});relation["military"]({bb}););out geom;'
-PEAK_Q = '[out:json][timeout:300];node["natural"="peak"]({bb});out;'
-
-
-def step_osm(f, slug):
-    bb = f.bbox_str()
-    if slug in ("lax", "bragg"):
-        aero = C.build_aeroway(f, C.overpass(AERO_Q.format(bb=bb), f"{slug}_aero"))
-        if slug == "lax":
-            C.wjson(os.path.join(f.out, "aeroway.json"), aero)
-        else:
-            mil = C.overpass(MIL_Q.format(bb=bb), f"{slug}_mil")
-            polys = []
-            for el in mil["elements"]:
-                tags = el.get("tags", {})
-                for ring in C.outer_rings(el, f):
-                    name = tags.get("name") or (f"[{tags['military']}]" if "military" in tags else "")
-                    polys.append([name] + C.flat(C.dp_ring(ring, 2.0)))
-            names = sorted({p[0] for p in polys if p[0]})
-            print(f"  military polygons: {len(polys)}; names: {names[:40]}")
-            out = {"military": polys, "runways": aero["runways"], "taxiways": aero["taxiways"],
-                   "aprons": aero["aprons"], "apronNames": aero["apronNames"], "terminals": aero["terminals"],
-                   "gates": aero["gates"], "parking": aero["parking"]}
-            C.wjson(os.path.join(f.out, "military.json"), out)
-        C.wjson(os.path.join(f.out, "buildings.json"), C.build_buildings(f, C.overpass_tiled(f, BLDG_Q, f"{slug}_bldg", NT[slug])))
-        C.wjson(os.path.join(f.out, "roads.json"), C.build_roads(f, C.overpass_tiled(f, ROAD_Q, f"{slug}_roads", NT[slug] // 2)))
-    else:
-        d = C.overpass(PEAK_Q.format(bb=bb), f"{slug}_peaks")
-        peaks = []
-        skipped = 0
-        for el in d["elements"]:
-            t = el.get("tags", {})
-            name = t.get("name:en") or t.get("name")
-            ele = t.get("ele")
-            if not name or not ele:
-                skipped += 1
-                continue
-            try:
-                s = ele.lower().replace(",", ".").strip()
-                v = float(s.replace("ft", "").replace("m", "").strip().split()[0].split(";")[0])
-                if "ft" in s:
-                    v *= 0.3048
-            except ValueError:
-                skipped += 1
-                continue
-            x, y = f.xy(el["lon"], el["lat"])
-            peaks.append([C.r1(x), C.r1(y), C.r1(v), name])
-        peaks.sort(key=lambda p: -p[2])
-        print(f"  peaks with name+ele: {len(peaks)} (skipped {skipped} lacking name/ele); top: {peaks[:6]}")
-        C.wjson(os.path.join(f.out, "peaks.json"), peaks)
-
-
-def step_elev(f):
-    z = 12
-    url = "https://s3.amazonaws.com/elevation-tiles-prod/terrarium/{z}/{x}/{y}.png"
-    mos, ox, oy, nf = C.mosaic(f, z, url, "terrarium", "png", "RGB", pad_m=1500)
-    if nf:
-        print(f"  WARNING: {nf} terrarium tiles missing")
-    m = mos.astype(np.float32)
-    h = m[..., 0] * 256 + m[..., 1] + m[..., 2] / 256 - 32768
-    N = 1024
-    e = C.reproject(f, h[..., None], ox, oy, z, N)[..., 0].astype("<f4")
-    e.tofile(os.path.join(f.out, "elev.f32"))
-    meta = {"size": N, "min": C.r1(e.min()), "max": C.r1(e.max()), "half": f.half,
-            "source": "AWS Terrain Tiles terrarium z12", "rowOrder": "row0=north", "dtype": "float32le"}
-    C.wjson(os.path.join(f.out, "elev_meta.json"), meta)
-    print(f"  elev min {e.min():.1f} max {e.max():.1f}")
-    # hillshade
-    cell = 2 * f.half / N
-    gy, gx = np.gradient(e.astype(np.float64), cell)  # gy: d/drow (southward)
-    dzdx, dzdy = gx, -gy
-    az, alt = np.radians(315), np.radians(45)
-    slope = np.arctan(np.hypot(dzdx, dzdy))
-    aspect = np.arctan2(-dzdx, -dzdy)  # direction of steepest descent... simple form
-    lx, ly, lz = np.sin(az) * np.cos(alt), np.cos(az) * np.cos(alt), np.sin(alt)
-    nx, ny, nz = -dzdx, -dzdy, np.ones_like(dzdx)
-    nn = np.sqrt(nx * nx + ny * ny + 1)
-    shade = np.clip((nx * lx + ny * ly + nz * lz) / nn, 0, 1)
-    t = (e - e.min()) / max(1, e.max() - e.min())
-    rgb = np.stack([0.35 + 0.65 * t, 0.45 + 0.55 * t, 0.55 + 0.45 * t], -1) * shade[..., None]
-    Image.fromarray((np.clip(rgb, 0, 1) * 255).astype(np.uint8)).save(os.path.join(f.out, "elev_preview.png"))
-    print("  wrote elev_preview.png")
-
-
-def step_check(f, slug):
-    N = 2048
-    im = C.check_canvas(f)
-    dr = ImageDraw.Draw(im, "RGBA")
-    P = lambda a: C.to_px(f, a, N)  # noqa
-    if slug in ("lax", "bragg"):
-        roads = json.load(open(os.path.join(f.out, "roads.json")))["roads"]
-        col = {0: (255, 60, 60, 230), 1: (255, 160, 40, 220), 2: (255, 230, 60, 200), 3: (200, 255, 120, 180),
-               4: (160, 200, 255, 150), 5: (180, 180, 180, 120)}
-        for r in roads:
-            dr.line(P(r[3:]), fill=col[r[0]], width=2 if r[0] < 3 else 1)
-        bl = json.load(open(os.path.join(f.out, "buildings.json")))["b"]
-        for b in bl:
-            pts = P(b[2:])
-            if len(pts) >= 3:
-                dr.polygon(pts, outline=(0, 255, 255, 200))
-        aero = json.load(open(os.path.join(f.out, "aeroway.json" if slug == "lax" else "military.json")))
-        if slug == "bragg":
-            for m in aero["military"]:
-                dr.polygon(P(m[1:]), outline=(255, 0, 255, 255))
-        for a in aero["aprons"]:
-            dr.polygon(P(a), outline=(255, 255, 255, 200))
-        for t in aero["taxiways"]:
-            dr.line(P(t), fill=(255, 255, 0, 230), width=1)
-        for rw in aero["runways"]:
-            w = max(2, int(rw[0] / (2 * f.half) * N))
-            dr.line(P(rw[2:6]), fill=(255, 40, 40, 110), width=w)
-            dr.line(P(rw[2:6]), fill=(255, 255, 255, 255), width=1)
-        for t in aero["terminals"]:
-            dr.polygon(P(t[1:]), outline=(255, 120, 0, 255))
-        for g in aero["gates"]:
-            (x, y), = P(g[:2])
-            dr.ellipse([x - 2, y - 2, x + 2, y + 2], fill=(0, 255, 0, 255))
-    else:
-        peaks = json.load(open(os.path.join(f.out, "peaks.json")))
-        for x0, y0, ele, name in peaks:
-            (x, y), = P([x0, y0])
-            dr.ellipse([x - 4, y - 4, x + 4, y + 4], outline=(255, 60, 60, 255), width=2)
-            if ele > 6000:
-                dr.text((x + 6, y - 6), f"{name} {ele:.0f}", fill=(255, 255, 255, 255))
-        # contour-ish overlay from DEM to check imagery/DEM alignment
-        e = np.fromfile(os.path.join(f.out, "elev.f32"), "<f4").reshape(1024, 1024)
-        e2 = np.asarray(Image.fromarray(e).resize((N, N), Image.BILINEAR))
-        band = (np.floor(e2 / 500) % 2).astype(np.int8)
-        edge = (np.abs(np.diff(band, axis=0, prepend=band[:1])) + np.abs(np.diff(band, axis=1, prepend=band[:, :1]))) > 0
-        arr = np.asarray(im).copy()
-        arr[edge] = (0.4 * arr[edge] + 0.6 * np.array([0, 255, 255])).astype(np.uint8)
-        im = Image.fromarray(arr)
-        dr = ImageDraw.Draw(im, "RGBA")
-        for x0, y0, ele, name in peaks:
-            (x, y), = P([x0, y0])
-            dr.ellipse([x - 4, y - 4, x + 4, y + 4], outline=(255, 60, 60, 255), width=2)
-            if ele > 6500:
-                dr.text((x + 6, y - 6), f"{name} {ele:.0f}", fill=(255, 255, 255, 255))
-    p = os.path.join(f.out, "check.png")
-    im.save(p)
-    print(f"  wrote {p}")
-
-
-def main():
-    slug = sys.argv[1]
-    steps = sys.argv[2:] or ["osm", "ground", "elev", "check"]
-    s = SCENES[slug]
-    f = C.Frame(slug, s["name"], s["lat0"], s["lon0"], s["half"])
-    f.write_meta()
-    print(f"== {slug} bbox {f.bbox_str()}")
-    if "osm" in steps:
-        step_osm(f, slug)
-    if "ground" in steps:
-        C.build_ground(f, s["z"])
-    if "ground_s2" in steps:
-        # alternative uniform real imagery (EOX Sentinel-2 cloudless 2020) — Esri is a patchwork here
-        C.build_ground(f, 14, C.EOX_S2, "eox_s2", "ground_s2")
-    if "elev" in steps and slug == "everest":
-        step_elev(f)
-    if "check" in steps:
-        step_check(f, slug)
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/city2/common.py

@@ -1,571 +0,0 @@
-"""Shared helpers for real-geodata scene builds (city2).
-
-Local frame: ENU metres relative to (lat0, lon0):
-  x = (lon - lon0) * cos(lat0) * 111320
-  y = (lat - lat0) * 110540
-"""
-import hashlib
-import io
-import json
-import math
-import os
-import sys
-import time
-from concurrent.futures import ThreadPoolExecutor
-
-import numpy as np
-import requests
-from PIL import Image
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-CACHE = os.path.join(HERE, "cache")
-CITY = os.path.abspath(os.path.join(HERE, "..", "..", "city"))
-os.makedirs(CACHE, exist_ok=True)
-
-OVERPASS = [
-    "https://overpass.kumi.systems/api/interpreter",
-    "https://overpass.private.coffee/api/interpreter",
-    "https://maps.mail.ru/osm/tools/overpass/api/interpreter",
-    "https://overpass-api.de/api/interpreter",
-]
-UA = {"User-Agent": "gods-eye-view-intro/1.0 (cinematic geodata build)"}
-
-Image.MAX_IMAGE_PIXELS = None
-
-
-class Frame:
-    def __init__(self, slug, name, lat0, lon0, half):
-        self.slug, self.name, self.lat0, self.lon0, self.half = slug, name, lat0, lon0, half
-        self.kx = math.cos(math.radians(lat0)) * 111320.0
-        self.ky = 110540.0
-        self.out = os.path.join(CITY, slug)
-        os.makedirs(self.out, exist_ok=True)
-
-    def xy(self, lon, lat):
-        return (lon - self.lon0) * self.kx, (lat - self.lat0) * self.ky
-
-    def ll(self, x, y):
-        return self.lon0 + x / self.kx, self.lat0 + y / self.ky
-
-    def bbox(self, pad=0.0):
-        """(south, west, north, east)"""
-        h = self.half + pad
-        return (self.lat0 - h / self.ky, self.lon0 - h / self.kx,
-                self.lat0 + h / self.ky, self.lon0 + h / self.kx)
-
-    def bbox_str(self, pad=0.0):
-        s, w, n, e = self.bbox(pad)
-        return f"{s:.6f},{w:.6f},{n:.6f},{e:.6f}"
-
-    def write_meta(self):
-        meta = {"slug": self.slug, "name": self.name, "lat0": self.lat0, "lon0": self.lon0,
-                "half": self.half, "frame": "ENU m"}
-        wjson(os.path.join(self.out, "meta.json"), meta)
-
-    def geom_xy(self, geom):
-        """list of {lat,lon} -> Nx2 float array in local metres"""
-        a = np.array([[g["lon"], g["lat"]] for g in geom if g is not None], dtype=np.float64)
-        if len(a) == 0:
-            return np.zeros((0, 2))
-        return np.stack([(a[:, 0] - self.lon0) * self.kx, (a[:, 1] - self.lat0) * self.ky], 1)
-
-
-def wjson(path, obj):
-    with open(path, "w") as f:
-        json.dump(obj, f, separators=(",", ":"))
-    print(f"  wrote {path} ({os.path.getsize(path)/1e6:.2f} MB)")
-
-
-def r1(v):
-    return round(float(v), 1)
-
-
-def flat(arr):
-    return [r1(v) for v in np.asarray(arr).reshape(-1)]
-
-
-# ---------------------------------------------------------------- Overpass
-def overpass(query, tag):
-    key = hashlib.sha1(query.encode()).hexdigest()[:12]
-    path = os.path.join(CACHE, f"overpass_{tag}_{key}.json")
-    if os.path.exists(path):
-        with open(path) as f:
-            return json.load(f)
-    last = None
-    for attempt in range(10):
-        for url in OVERPASS:
-            try:
-                print(f"  overpass {tag} -> {url}", flush=True)
-                t = time.time()
-                r = requests.get(url, params={"data": query}, headers=UA, timeout=900)
-                if r.status_code != 200:
-                    last = f"{url}: HTTP {r.status_code} {r.text[:200]}"
-                    print("   ", last)
-                    continue
-                d = r.json()
-                rem = d.get("remark", "")
-                if rem and ("runtime error" in rem or "timed out" in rem or "out of memory" in rem):
-                    last = f"{url}: remark {rem[:200]}"
-                    print("   ", last)
-                    continue
-                print(f"    {len(d.get('elements', []))} elements in {time.time()-t:.0f}s")
-                with open(path, "w") as f:
-                    json.dump(d, f)
-                return d
-            except Exception as e:  # noqa
-                last = f"{url}: {e}"
-                print("   ", last)
-        time.sleep(30)
-    raise RuntimeError(f"overpass failed for {tag}: {last}")
-
-
-def overpass_tiled(frame, qfmt, tag, n):
-    """Run a query template ({bb} placeholder) over an n x n split of the frame bbox; dedupe elements."""
-    s, w, nn, e = frame.bbox()
-    seen, els = set(), []
-    for i in range(n):
-        for j in range(n):
-            bb = (f"{s + (nn - s) * i / n:.6f},{w + (e - w) * j / n:.6f},"
-                  f"{s + (nn - s) * (i + 1) / n:.6f},{w + (e - w) * (j + 1) / n:.6f}")
-            d = overpass(qfmt.format(bb=bb), f"{tag}_{i}{j}")
-            for el in d["elements"]:
-                k = (el["type"], el["id"])
-                if k not in seen:
-                    seen.add(k)
-                    els.append(el)
-    print(f"  {tag}: {len(els)} unique elements over {n}x{n} tiles")
-    return {"elements": els}
-
-
-# ---------------------------------------------------------------- geometry
-def assemble_rings(ways):
-    """ways: list of Nx2 arrays (open or closed). Returns list of closed rings."""
-    rings = []
-    pending = [w for w in ways if len(w) >= 2]
-    while pending:
-        cur = pending.pop(0)
-        changed = True
-        while not np.allclose(cur[0], cur[-1], atol=1e-3) and changed:
-            changed = False
-            for i, w in enumerate(pending):
-                if np.allclose(cur[-1], w[0], atol=1e-3):
-                    cur = np.vstack([cur, w[1:]])
-                elif np.allclose(cur[-1], w[-1], atol=1e-3):
-                    cur = np.vstack([cur, w[::-1][1:]])
-                elif np.allclose(cur[0], w[-1], atol=1e-3):
-                    cur = np.vstack([w, cur[1:]])
-                elif np.allclose(cur[0], w[0], atol=1e-3):
-                    cur = np.vstack([w[::-1], cur[1:]])
-                else:
-                    continue
-                pending.pop(i)
-                changed = True
-                break
-        if np.allclose(cur[0], cur[-1], atol=1e-3) and len(cur) >= 4:
-            rings.append(cur)
-    return rings
-
-
-def outer_rings(el, frame):
-    """Outer rings (local metres, closed) for a way or multipolygon relation with out geom."""
-    if el["type"] == "way":
-        g = el.get("geometry")
-        if not g:
-            return []
-        a = frame.geom_xy(g)
-        if len(a) >= 4 and np.allclose(a[0], a[-1], atol=1e-3):
-            return [a]
-        return []
-    if el["type"] == "relation":
-        ways = [frame.geom_xy(m["geometry"]) for m in el.get("members", [])
-                if m.get("type") == "way" and m.get("role", "outer") in ("outer", "") and m.get("geometry")]
-        return assemble_rings(ways)
-    return []
-
-
-def dp(pts, eps):
-    """Douglas-Peucker on Nx2 array (iterative)."""
-    n = len(pts)
-    if n < 3:
-        return pts
-    keep = np.zeros(n, bool)
-    keep[0] = keep[-1] = True
-    stack = [(0, n - 1)]
-    while stack:
-        a, b = stack.pop()
-        if b <= a + 1:
-            continue
-        p, q = pts[a], pts[b]
-        seg = pts[a + 1:b]
-        d = q - p
-        L = math.hypot(d[0], d[1])
-        if L < 1e-9:
-            dist = np.hypot(seg[:, 0] - p[0], seg[:, 1] - p[1])
-        else:
-            dist = np.abs(d[0] * (seg[:, 1] - p[1]) - d[1] * (seg[:, 0] - p[0])) / L
-        i = int(np.argmax(dist))
-        if dist[i] > eps:
-            m = a + 1 + i
-            keep[m] = True
-            stack.append((a, m))
-            stack.append((m, b))
-    return pts[keep]
-
-
-def dp_ring(ring, eps):
-    """DP for a closed ring: split at the vertex farthest from ring[0]."""
-    r = ring[:-1] if np.allclose(ring[0], ring[-1]) else ring
-    if len(r) < 4:
-        return r
-    far = int(np.argmax(np.hypot(*(r - r[0]).T)))
-    a = dp(np.vstack([r[:far + 1]]), eps)
-    b = dp(np.vstack([r[far:], r[:1]]), eps)
-    return np.vstack([a[:-1], b[:-1]])  # open ring (no repeated closing vertex)
-
-
-def area(ring):
-    x, y = ring[:, 0], ring[:, 1]
-    return 0.5 * abs(np.dot(x, np.roll(y, -1)) - np.dot(y, np.roll(x, -1)))
-
-
-def poly_len(a):
-    return float(np.sum(np.hypot(*np.diff(a, axis=0).T))) if len(a) > 1 else 0.0
-
-
-def clip_polyline(a, lim):
-    """Split a polyline into runs inside the square |x|,|y|<=lim, cutting segments at the edge."""
-    out, cur = [], []
-    inside = (np.abs(a[:, 0]) <= lim) & (np.abs(a[:, 1]) <= lim)
-
-    def cut(p, q):
-        # point on segment p->q at the square boundary (p inside, q outside)
-        t = 1.0
-        d = q - p
-        for k in range(2):
-            if d[k] > 0 and q[k] > lim:
-                t = min(t, (lim - p[k]) / d[k])
-            elif d[k] < 0 and q[k] < -lim:
-                t = min(t, (-lim - p[k]) / d[k])
-        return p + d * t
-
-    for i in range(len(a)):
-        if inside[i]:
-            if not cur and i > 0:
-                cur.append(cut(a[i], a[i - 1]))
-            cur.append(a[i])
-        else:
-            if cur:
-                cur.append(cut(a[i - 1], a[i]))
-                out.append(np.array(cur))
-                cur = []
-    if cur:
-        out.append(np.array(cur))
-    return [c for c in out if len(c) >= 2]
-
-
-def tag_height(tags, default=10.0):
-    def num(s):
-        try:
-            s = str(s).strip().lower().replace(",", ".")
-            ft = s.endswith("ft") or s.endswith("'")
-            s = s.replace("m", "").replace("ft", "").replace("'", "").strip().split(";")[0].split()[0]
-            v = float(s)
-            return v * 0.3048 if ft else v
-        except Exception:
-            return None
-    h = num(tags["height"]) if "height" in tags else None
-    if h is None and "building:levels" in tags:
-        lv = num(tags["building:levels"])
-        if lv is not None:
-            h = lv * 3.2
-    if h is None or h <= 0:
-        h = default
-    mh = num(tags["min_height"]) if "min_height" in tags else None
-    if mh is None and "building:min_level" in tags:
-        lv = num(tags["building:min_level"])
-        mh = lv * 3.2 if lv is not None else None
-    mh = mh if (mh is not None and 0 <= mh < h) else 0.0
-    return h, mh
-
-
-# ---------------------------------------------------------------- buildings / roads
-def build_buildings(frame, data, min_area=6.0):
-    b = []
-    dropped = 0
-    lim = frame.half
-    for el in data["elements"]:
-        if el["type"] not in ("way", "relation"):
-            continue
-        tags = el.get("tags", {})
-        if "building" not in tags:
-            continue
-        h, mh = tag_height(tags)
-        for ring in outer_rings(el, frame):
-            c = ring[:-1].mean(0)
-            if abs(c[0]) > lim or abs(c[1]) > lim:
-                continue
-            s = dp_ring(ring, 0.5)
-            if len(s) < 3 or area(s) < min_area:
-                dropped += 1
-                continue
-            b.append([r1(h), r1(mh)] + flat(s))
-    print(f"  buildings: {len(b)} kept, {dropped} tiny dropped")
-    return {"count": len(b), "b": b}
-
-
-ROAD_CLASS = {
-    "motorway": 0, "trunk": 0,
-    "primary": 1, "secondary": 2, "tertiary": 3,
-    "residential": 4, "unclassified": 4, "living_street": 4,
-    "motorway_link": 5, "trunk_link": 5, "primary_link": 5, "secondary_link": 5,
-    "tertiary_link": 5, "service": 5,
-}
-DEFAULT_LANES = {0: 3, 1: 2, 2: 2, 3: 2, 4: 1, 5: 1}
-
-
-def build_roads(frame, data):
-    roads = []
-    counts = {}
-    lim = frame.half + 50
-    for el in data["elements"]:
-        if el["type"] != "way" or not el.get("geometry"):
-            continue
-        tags = el.get("tags", {})
-        hw = tags.get("highway")
-        if hw not in ROAD_CLASS:
-            continue
-        cls = ROAD_CLASS[hw]
-        a = frame.geom_xy(el["geometry"])
-        if hw == "service" and poly_len(a) <= 80:
-            continue
-        ow = tags.get("oneway", "")
-        oneway = 0
-        if ow in ("yes", "1", "true") or (hw in ("motorway",) and ow != "no") or tags.get("junction") in ("roundabout", "circular"):
-            oneway = 1
-        elif ow == "-1":
-            oneway = 1
-            a = a[::-1]
-        try:
-            lanes = int(str(tags.get("lanes", "")).split(";")[0])
-        except ValueError:
-            lanes = DEFAULT_LANES[cls] * (1 if oneway else 2) if cls < 4 else (1 if oneway else 2)
-        for part in clip_polyline(a, lim):
-            if poly_len(part) < 2:
-                continue
-            roads.append([cls, oneway, lanes] + flat(part))
-            counts[cls] = counts.get(cls, 0) + 1
-    print(f"  roads: {len(roads)} polylines, by class {dict(sorted(counts.items()))}")
-    return {"roads": roads}
-
-
-# ---------------------------------------------------------------- aeroway
-def build_aeroway(frame, data):
-    lim = frame.half + 200
-    runways, taxiways, aprons, terminals, gates, parking = [], [], [], [], [], []
-    apron_names = []
-    for el in data["elements"]:
-        tags = el.get("tags", {})
-        aw = tags.get("aeroway")
-        if el["type"] == "node":
-            x, y = frame.xy(el["lon"], el["lat"])
-            if abs(x) > lim or abs(y) > lim:
-                continue
-            if aw == "gate":
-                gates.append([r1(x), r1(y), tags.get("ref", tags.get("name", ""))])
-            elif aw == "parking_position":
-                parking.append([r1(x), r1(y), tags.get("ref", tags.get("name", ""))])
-            continue
-        if aw == "runway" and el["type"] == "way" and el.get("geometry"):
-            a = frame.geom_xy(el["geometry"])
-            closed = len(a) > 3 and np.allclose(a[0], a[-1], atol=1e-3)
-            try:
-                w = float(str(tags.get("width", "")).replace("m", "").strip())
-            except ValueError:
-                w = None
-            if closed or tags.get("area") == "yes":
-                # area runway: use its long axis (PCA) as centreline, width = short extent
-                c = a.mean(0)
-                u, s, vt = np.linalg.svd(a - c, full_matrices=False)
-                ax = vt[0]
-                t = (a - c) @ ax
-                n = (a - c) @ vt[1]
-                p1, p2 = c + ax * t.min(), c + ax * t.max()
-                w = w or float(n.max() - n.min())
-            else:
-                p1, p2 = a[0], a[-1]
-            runways.append([r1(w or 45.0), tags.get("ref", ""), r1(p1[0]), r1(p1[1]), r1(p2[0]), r1(p2[1])])
-        elif aw == "taxiway" and el["type"] == "way" and el.get("geometry"):
-            a = frame.geom_xy(el["geometry"])
-            if tags.get("area") == "yes":
-                continue
-            for part in clip_polyline(a, lim):
-                taxiways.append(flat(part))
-        elif aw == "apron":
-            for ring in outer_rings(el, frame):
-                c = ring.mean(0)
-                if abs(c[0]) > lim or abs(c[1]) > lim:
-                    continue
-                aprons.append(flat(dp_ring(ring, 0.5)))
-                apron_names.append(tags.get("name", ""))
-        elif aw == "terminal":
-            h, _ = tag_height(tags)
-            for ring in outer_rings(el, frame):
-                c = ring.mean(0)
-                if abs(c[0]) > lim or abs(c[1]) > lim:
-                    continue
-                terminals.append([r1(h)] + flat(dp_ring(ring, 0.5)))
-    # OSM often splits one runway into several ways (displaced thresholds, blast pads):
-    # merge segments sharing a ref into one centreline spanning their extreme endpoints.
-    merged, groups = [], {}
-    for rw in runways:
-        if rw[1]:
-            groups.setdefault(rw[1], []).append(rw)
-        else:
-            merged.append(rw)
-    for ref, segs in groups.items():
-        pts = np.array([[s[2], s[3]] for s in segs] + [[s[4], s[5]] for s in segs])
-        main = max(segs, key=lambda s: math.hypot(s[4] - s[2], s[5] - s[3]))
-        ax = np.array([main[4] - main[2], main[5] - main[3]])
-        ax /= np.linalg.norm(ax)
-        t = (pts - pts[0]) @ ax
-        p1, p2 = pts[int(np.argmin(t))], pts[int(np.argmax(t))]
-        merged.append([main[0], ref, r1(p1[0]), r1(p1[1]), r1(p2[0]), r1(p2[1])])
-    if len(merged) != len(runways):
-        print(f"  runways: merged {len(runways)} OSM segments into {len(merged)}")
-    runways = merged
-    out = {"runways": runways, "taxiways": taxiways, "aprons": aprons, "apronNames": apron_names,
-           "terminals": terminals, "gates": gates, "parking": parking}
-    print("  aeroway: " + ", ".join(f"{k}={len(v)}" for k, v in out.items()))
-    return out
-
-
-# ---------------------------------------------------------------- tiles / imagery
-def merc_px(lon, lat, z, ts=256):
-    n = 2 ** z
-    x = (lon + 180.0) / 360.0 * n * ts
-    lat_r = np.radians(lat)
-    y = (1.0 - np.log(np.tan(lat_r) + 1.0 / np.cos(lat_r)) / math.pi) / 2.0 * n * ts
-    return x, y
-
-
-def fetch_tiles(url_fmt, tiles, subdir, ext, workers=8):
-    d = os.path.join(CACHE, subdir)
-    os.makedirs(d, exist_ok=True)
-    sess = requests.Session()
-    sess.headers.update(UA)
-    fails = []
-
-    def get(t):
-        z, x, y = t
-        p = os.path.join(d, f"{z}_{x}_{y}.{ext}")
-        if os.path.exists(p) and os.path.getsize(p) > 0:
-            return p
-        for i in range(4):
-            try:
-                r = sess.get(url_fmt.format(z=z, x=x, y=y), timeout=60)
-                if r.status_code == 200 and len(r.content) > 100:
-                    with open(p + ".tmp", "wb") as f:
-                        f.write(r.content)
-                    os.replace(p + ".tmp", p)
-                    return p
-                if r.status_code == 404:
-                    break
-            except Exception:
-                pass
-            time.sleep(1.5 * (i + 1))
-        fails.append(t)
-        return None
-
-    with ThreadPoolExecutor(workers) as ex:
-        res = list(ex.map(get, tiles))
-    return dict(zip(tiles, res)), fails
-
-
-def mosaic(frame, z, url_fmt, subdir, ext, mode, pad_m=300.0):
-    s, w, n, e = frame.bbox(pad_m)
-    x0, y1 = merc_px(w, s, z)
-    x1, y0 = merc_px(e, n, z)
-    tx0, tx1 = int(x0 // 256), int(x1 // 256)
-    ty0, ty1 = int(y0 // 256), int(y1 // 256)
-    tiles = [(z, x, y) for y in range(ty0, ty1 + 1) for x in range(tx0, tx1 + 1)]
-    print(f"  {subdir} z{z}: {tx1-tx0+1}x{ty1-ty0+1} = {len(tiles)} tiles", flush=True)
-    paths, fails = fetch_tiles(url_fmt, tiles, subdir, ext)
-    if fails:
-        print(f"  WARNING: {len(fails)} tiles failed: {fails[:10]}")
-    W, H = (tx1 - tx0 + 1) * 256, (ty1 - ty0 + 1) * 256
-    nb = 3 if mode == "RGB" else 3
-    mos = np.zeros((H, W, nb), np.uint8)
-    for (zz, x, y), p in paths.items():
-        if p is None:
-            continue
-        im = Image.open(p).convert("RGB")
-        if im.size != (256, 256):
-            im = im.resize((256, 256))
-        mos[(y - ty0) * 256:(y - ty0 + 1) * 256, (x - tx0) * 256:(x - tx0 + 1) * 256] = np.asarray(im)
-    return mos, tx0 * 256, ty0 * 256, len(fails)
-
-
-def bilinear(img, px, py):
-    """img HxWxC (float or uint8), px/py float arrays in pixel coords (pixel centres at i+0.5)."""
-    H, W = img.shape[:2]
-    fx = np.clip(px - 0.5, 0, W - 1.000001)
-    fy = np.clip(py - 0.5, 0, H - 1.000001)
-    x0 = np.floor(fx).astype(np.int64)
-    y0 = np.floor(fy).astype(np.int64)
-    ax = (fx - x0)[..., None]
-    ay = (fy - y0)[..., None]
-    im = img if img.ndim == 3 else img[..., None]
-    a = im[y0, x0].astype(np.float32)
-    b = im[y0, x0 + 1].astype(np.float32)
-    c = im[y0 + 1, x0].astype(np.float32)
-    d = im[y0 + 1, x0 + 1].astype(np.float32)
-    out = (a * (1 - ax) + b * ax) * (1 - ay) + (c * (1 - ax) + d * ax) * ay
-    return out if img.ndim == 3 else out[..., 0]
-
-
-def reproject(frame, img, ox, oy, z, N, rows_per=256):
-    """Sample a Mercator mosaic (origin global px ox,oy at zoom z) onto the local NxN square."""
-    h = frame.half
-    out = np.zeros((N, N) + img.shape[2:], np.float32)
-    xs = -h + (np.arange(N) + 0.5) * (2 * h / N)
-    for r0 in range(0, N, rows_per):
-        r = np.arange(r0, min(N, r0 + rows_per))
-        ys = h - (r + 0.5) * (2 * h / N)
-        X, Y = np.meshgrid(xs, ys)
-        lon, lat = frame.ll(X, Y)
-        mx, my = merc_px(lon, lat, z)
-        out[r0:r0 + len(r)] = bilinear(img, mx - ox, my - oy)
-    return out
-
-
-ESRI = "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}"
-
-
-EOX_S2 = "https://tiles.maps.eox.at/wmts/1.0.0/s2cloudless-2020_3857/default/g/{z}/{y}/{x}.jpg"
-
-
-def build_ground(frame, z, url=ESRI, sub="esri", name="ground"):
-    mos, ox, oy, nf = mosaic(frame, z, url, sub, "jpg", "RGB")
-    out = reproject(frame, mos, ox, oy, z, 4096)
-    im = Image.fromarray(np.clip(out + 0.5, 0, 255).astype(np.uint8))
-    p = os.path.join(frame.out, f"{name}.jpg")
-    im.save(p, quality=90, optimize=True)
-    print(f"  wrote {p} ({os.path.getsize(p)/1e6:.2f} MB)")
-    im2 = im.resize((2048, 2048), Image.LANCZOS)
-    p2 = os.path.join(frame.out, f"{name}_2k.jpg")
-    im2.save(p2, quality=88, optimize=True)
-    print(f"  wrote {p2} ({os.path.getsize(p2)/1e6:.2f} MB)")
-    return nf
-
-
-# ---------------------------------------------------------------- check overlay
-def to_px(frame, a, N):
-    a = np.asarray(a, dtype=np.float64).reshape(-1, 2)
-    return [((x + frame.half) / (2 * frame.half) * N, (frame.half - y) / (2 * frame.half) * N) for x, y in a]
-
-
-def check_canvas(frame, dark=0.45):
-    from PIL import ImageEnhance
-    im = Image.open(os.path.join(frame.out, "ground_2k.jpg")).convert("RGB")
-    im = ImageEnhance.Brightness(im).enhance(dark)
-    return im

intro-sequence/tools/export-cues.mjs

@@ -1,40 +0,0 @@
-// Export the film clock for the score: every visual event the audio locks to.
-import fs from 'node:fs';
-import { T, FEEDS, CITIES, DURATION, captureTimes, CAPTURE_SLOW } from '../src/timeline.js';
-import { angDist } from '../src/geo.js';
-
-const heroes = JSON.parse(fs.readFileSync('imagery/hero/index.json', 'utf8'));
-const caps = captureTimes(heroes.length).map((t, i) => ({ t, slow: i < CAPTURE_SLOW, lon: heroes[i].lon }));
-
-// tile reveal times — same formula as the globe shader and HUD
-const f = (v) => v - Math.floor(v);
-const hash3 = (x, y, z) => {
-  const px = f(x * 0.3183099 + 0.71) * 17, py = f(y * 0.3183099 + 0.113) * 17, pz = f(z * 0.3183099 + 0.419) * 17;
-  return f(px * py * pz * (px + py + pz));
-};
-const tiles = [];
-[[3, T.zWave[0], 0.35], [4, T.zWave[1], 0.3], [5, T.zWave[2], 0.25]].forEach(([z, wave, jit]) => {
-  const n = 2 ** z;
-  for (let x = 0; x < n; x++)
-    for (let y = 0; y < n; y++) {
-      const lon = ((x + 0.5) / n) * 360 - 180;
-      const lat = (Math.atan(Math.sinh(Math.PI * (1 - 2 * ((y + 0.5) / n)))) * 180) / Math.PI;
-      // only the hemisphere facing the camera is heard
-      const d = angDist(0, 0, lon, lat);
-      tiles.push({ t: wave + (d / Math.PI) * 2.6 + hash3(x, y, z) * jit, z, pan: Math.max(-1, Math.min(1, lon / 90)), vis: angDist(10, 8, lon, lat) < 1.4 });
-    }
-});
-
-// boot console keystrokes
-const boot = [];
-[['GEV://OBSERVER-1  rev 0.2.1', T.boot, 55], ['allocating substrate ........ 1.0000  OK', T.boot + 0.75, 55], ['loading priors .............. NONE', T.boot + 1.35, 55], ['> seed --origin 0.0000°N 0.0000°E', T.boot + 2.1, 26]].forEach(([s, st, cps], line) => {
-  for (let i = 0; i < s.length; i++) {
-    const t = st + i / cps;
-    if (t < T.collapse) boot.push({ t, ch: s[i], line });
-  }
-});
-
-const status = [77.4, 78.5, 79.6, 80.7, 81.7];
-const rapid = Array.from({ length: 7 }, (_, i) => T.rapid + i * 0.22);
-fs.writeFileSync('audio/cues.json', JSON.stringify({ T, DURATION, feeds: FEEDS.map((x) => ({ key: x.key, t: x.t })), cities: CITIES.map((c) => ({ slug: c.slug, t0: c.t0, t1: c.t1 })), caps, tiles, boot, status, rapid }, null, 1));
-console.log('cues:', caps.length, 'captures,', tiles.length, 'tiles,', boot.length, 'keystrokes');

intro-sequence/tools/fetch/cctv_count.py

@@ -1,511 +0,0 @@
-#!/usr/bin/env python3
-"""Count distinct cameras in every keyless CCTV catalog the app supports.
-
-Fetches each source's FULL public catalog (no anchor selection, no
-DEFAULT_*_MAX_SOURCES caps) and counts distinct cameras two ways:
-  raw   - distinct camera ids listed in the catalog at all
-  valid - distinct ids passing the app's own validity filters (in service /
-          online / official still or stream URL / plausible coordinates),
-          i.e. what server/providers/cctv/* would accept before capping.
-The headline number written to data/extra_counts.json is the conservative
-`valid` count. Sources that fail are skipped, never estimated.
-
-Usage: python3 -I cctv_count.py <out_json> [<detail_json>]
-"""
-import json, math, re, sys, time
-from concurrent.futures import ThreadPoolExecutor
-from urllib.parse import urlparse, parse_qs
-import requests
-
-UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36'
-REPO = '/home/user/gods-eye-view'
-
-
-def sess():
-    s = requests.Session()
-    s.headers.update({'User-Agent': UA, 'Digitraffic-User': 'gods-eye-view'})
-    return s
-
-
-def get(url, timeout=60, **kw):
-    r = sess().get(url, timeout=timeout, **kw)
-    r.raise_for_status()
-    return r
-
-
-def fnum(v):
-    try:
-        f = float(v)
-        return f if math.isfinite(f) else None
-    except (TypeError, ValueError):
-        return None
-
-
-def inbox(lat, lon, la0, la1, lo0, lo1):
-    return lat is not None and lon is not None and la0 <= lat <= la1 and lo0 <= lon <= lo1
-
-
-SRC = {}
-
-
-def source(label, country):
-    def deco(fn):
-        SRC[label] = (fn, country)
-        return fn
-    return deco
-
-
-@source('TfL JamCams', 'United Kingdom')
-def tfl():
-    d = get('https://api.tfl.gov.uk/Place/Type/JamCam').json()
-    raw, ok = set(), set()
-    for p in d:
-        raw.add(p['id'])
-        props = {a['key']: a['value'] for a in p.get('additionalProperties', [])}
-        if str(props.get('available')).lower() != 'true':
-            continue
-        if not (props.get('imageUrl') or '').startswith('https://s3-eu-west-1.amazonaws.com/jamcams.tfl.gov.uk/'):
-            continue
-        if fnum(p.get('lat')) is None or fnum(p.get('lon')) is None:
-            continue
-        ok.add(p['id'])
-    return raw, ok, 'one Place per camera; available=true + official S3 still'
-
-
-@source('NYC DOT', 'United States')
-def nyc():
-    d = get('https://webcams.nyctmc.org/api/cameras').json()
-    raw = {c['id'] for c in d}
-    ok = {c['id'] for c in d if str(c.get('isOnline')).strip().lower() == 'true'
-          and inbox(fnum(c.get('latitude')), fnum(c.get('longitude')), 40.4, 41.0, -74.3, -73.6)}
-    return raw, ok, 'one row per camera; isOnline=true'
-
-
-@source('Caltrans', 'United States')
-def caltrans():
-    raw, ok = set(), set()
-    notes = []
-
-    def one(dist):
-        err = None
-        for attempt in range(5):  # cwwp2 resets connections under parallel load
-            try:
-                return dist, get(f'https://cwwp2.dot.ca.gov/data/d{dist}/cctv/cctvStatusD{dist:02d}.json').json()
-            except Exception as e:
-                err = e
-                time.sleep(1 + attempt)
-        return dist, err
-    with ThreadPoolExecutor(3) as ex:
-        res = list(ex.map(one, range(1, 13)))
-    for dist, d in res:
-        if isinstance(d, Exception):
-            notes.append(f'D{dist} failed: {str(d)[:60]}')
-            continue
-        for i, row in enumerate(d.get('data', [])):
-            c = row.get('cctv') or {}
-            loc = c.get('location') or {}
-            name = (loc.get('locationName') or '').strip()
-            m = re.match(r'^([A-Za-z0-9_-]+)\s*--', name)
-            key = f"d{dist}-{(m.group(1) if m else c.get('index') or name or i)}".lower()
-            raw.add(key)
-            if str(c.get('inService')).lower() != 'true':
-                continue
-            if fnum(loc.get('latitude')) is None or fnum(loc.get('longitude')) is None:
-                continue
-            url = ((c.get('imageData') or {}).get('static') or {}).get('currentImageURL') or ''
-            if not url.startswith('https://cwwp2.dot.ca.gov/'):
-                continue
-            ok.add(key)
-    return raw, ok, 'all 12 districts; inService=true + cwwp2 still. ' + '; '.join(notes)
-
-
-@source('WSDOT', 'United States')
-def wsdot():
-    d = json.loads(get('https://data.wsdot.wa.gov/travelcenter/Cameras.json').content.decode('cp1252'))
-    raw, ok = set(), set()
-    for f in d['features']:
-        a = f.get('attributes') or {}
-        cid = a.get('CameraID')
-        if not isinstance(cid, int) or cid <= 0:
-            continue
-        raw.add(cid)
-        if (a.get('ImageURL') or '').strip().startswith('https://images.wsdot.wa.gov/') and fnum((f.get('geometry') or {}).get('x')) is not None:
-            ok.add(cid)
-    return raw, ok, 'one feature per CameraID; official images.wsdot.wa.gov still'
-
-
-@source('King County DOT', 'United States')
-def kingco():
-    d = get('https://services.arcgis.com/Ej0PsM5Aw677QF1W/arcgis/rest/services/TRAFFICCAMERA_POINT_2029/FeatureServer/0/query?where=1%3D1&outFields=AssetID,Location,ImageURL,Live,Model,Manufacturer,Owner,CurrentStatus&f=geojson').json()
-    raw, ok = set(), set()
-    for f in d['features']:
-        p = f.get('properties') or {}
-        aid = p.get('AssetID')
-        if not isinstance(aid, int) or aid <= 0:
-            continue
-        raw.add(aid)
-        if p.get('Live') != 1 or str(p.get('CurrentStatus') or '').strip() != 'Active':
-            continue
-        if str(p.get('Owner') or '').strip() == 'WSDOT':
-            continue  # WSDOT-owned rows are WSDOT cameras (counted under WSDOT)
-        url = (p.get('ImageURL') or '').strip().replace('http://info.kingcounty.gov/', 'https://info.kingcounty.gov/')
-        if not url.startswith('https://info.kingcounty.gov/'):
-            continue
-        ok.add(aid)
-    note = 'Live=1 + Active, WSDOT-owned rows excluded (avoid double count)'
-    if d.get('exceededTransferLimit') or (d.get('properties') or {}).get('exceededTransferLimit'):
-        note += ' WARNING: transfer limit exceeded'
-    return raw, ok, note
-
-
-@source('DriveBC', 'Canada')
-def drivebc():
-    d = get('https://www.drivebc.ca/api/webcams/').json()
-    raw, ok = set(), set()
-    for c in d:
-        cid = c.get('id')
-        if not isinstance(cid, int) or cid <= 0:
-            continue
-        raw.add(cid)
-        if c.get('is_on') is not True or c.get('should_appear') is not True:
-            continue
-        coords = (c.get('location') or {}).get('coordinates') or [None, None]
-        if not inbox(fnum(coords[1]), fnum(coords[0]), 48.0, 60.5, -139.5, -113.5):
-            continue
-        ok.add(cid)
-    return raw, ok, 'one webcam per id; is_on + should_appear'
-
-
-@source('Fintraffic Digitraffic', 'Finland')
-def fintraffic():
-    d = get('https://tie.digitraffic.fi/api/weathercam/v1/stations', headers={'Accept-Encoding': 'gzip'}).json()
-    raw, ok, presets = set(), set(), 0
-    for f in d['features']:
-        p = f.get('properties') or {}
-        sid = str(p.get('id') or '')
-        if not sid:
-            continue
-        raw.add(sid)
-        if str(p.get('collectionStatus') or '').upper() != 'GATHERING':
-            continue
-        live = [pr for pr in p.get('presets') or [] if pr.get('inCollection') is True and re.fullmatch(r'C\d{7}', str(pr.get('id'))) and str(pr['id']).startswith(sid)]
-        if live:
-            ok.add(sid)
-            presets += len(live)
-    return raw, ok, f'counted per STATION (camera site), not per preset view; {presets} live presets (the app treats each preset as a camera)'
-
-
-@source('Statens vegvesen', 'Norway')
-def vegvesen():
-    d = get('https://ogckart-sn1.atlas.vegvesen.no/ogc/features/v1/collections/datex_3_1:CctvSimple/items?f=application/geo%2Bjson&limit=5000',
-            headers={'Accept': 'application/geo+json,application/json'}).json()
-    raw, ok = set(), set()
-    for f in d['features']:
-        p = f.get('properties') or {}
-        rid = str(p.get('cameraId') or '').strip()
-        if not re.fullmatch(r'[A-Za-z0-9_-]{1,40}', rid):
-            continue
-        raw.add(rid)
-        av = str(p.get('status.stillImageAvailability') or '').strip()
-        if av and av != 'videoOrImagesAvailable':
-            continue
-        if (p.get('stillImageUrl') or '') != f'https://kamera.atlas.vegvesen.no/api/images/{rid}':
-            continue
-        c = (f.get('geometry') or {}).get('coordinates') or [None, None]
-        if not inbox(fnum(c[1]), fnum(c[0]), 57.5, 71.5, 4.0, 31.5):
-            continue
-        ok.add(rid)
-    note = f"numberMatched={d.get('numberMatched')} numberReturned={d.get('numberReturned')}"
-    return raw, ok, 'stillImageAvailability ok + official still; ' + note
-
-
-@source('City of Tallinn', 'Estonia')
-def tallinn():
-    d = json.load(open(f'{REPO}/config/cctv_sources.tallinn.json'))
-    raw, ok = set(), set()
-    for c in d:
-        cid = str(c.get('id') or '').strip()
-        if not cid:
-            continue
-        raw.add(cid)
-        url = c.get('snapshotUrl') or c.get('url') or ''
-        if inbox(fnum(c.get('lat')), fnum(c.get('lon')), 59.2, 59.7, 24.3, 25.4) and url.startswith('https://ristmikud.tallinn.ee/'):
-            ok.add(url)
-    return raw, ok, 'curated repo catalog (config/cctv_sources.tallinn.json) of ristmikud.tallinn.ee stills; distinct frame URLs'
-
-
-@source('Transpordiamet Tarktee', 'Estonia')
-def tarktee():
-    lx = get('https://tarktee.transpordiamet.ee/api/v1/datex/roadCameraLocations', headers={'Accept': 'application/xml'}).text
-    ix = get('https://tarktee.transpordiamet.ee/api/v1/datex/roadCameraImages', headers={'Accept': 'application/xml'}).text
-    locs = {}
-    for m in re.finditer(r'<predefinedLocation\s+id="([^"]+)"[^>]*>([\s\S]*?)</predefinedLocation>', lx):
-        la = re.search(r'<latitude>\s*(-?\d+(?:\.\d+)?)\s*</latitude>', m.group(2), re.I)
-        lo = re.search(r'<longitude>\s*(-?\d+(?:\.\d+)?)\s*</longitude>', m.group(2), re.I)
-        if la and lo:
-            locs[m.group(1)] = (float(la.group(1)), float(lo.group(1)))
-    imgs = {}
-    for m in re.finditer(r'<trafficView\b[^>]*>([\s\S]*?)</trafficView>', ix):
-        r = re.search(r'<linearPredefinedLocationReference\b[^>]*\bid="([^"]+)"', m.group(1), re.I)
-        u = re.search(r'<urlLinkAddress>\s*([^<\s]+)\s*</urlLinkAddress>', m.group(1), re.I)
-        if r and u:
-            imgs[r.group(1)] = u.group(1)
-    raw = set(locs) | set(imgs)
-    ok = set()
-    for lid, (lat, lon) in locs.items():
-        u = imgs.get(lid, '')
-        if not u.startswith('https://tarktee.transpordiamet.ee/images/'):
-            continue
-        if not inbox(lat, lon, 57.4, 59.9, 21.5, 28.4):
-            continue
-        n = re.search(r'/images/(\d+)/', u)
-        ok.add(n.group(1) if n else lid)
-    return raw, ok, 'DATEX location joined to image; distinct camera numbers'
-
-
-@source('Via Lietuva eismoinfo', 'Lithuania')
-def lithuania():
-    rows = get('https://eismoinfo.lt/eismoinfo-backend/camera-info-table', headers={'Accept': 'application/json'}).json()
-    layers = get('https://eismoinfo.lt/eismoinfo-backend/layer-static-features/VKR', headers={'Accept': 'application/json'}).json()
-    feats = {}
-    for L in layers:
-        if L.get('layer') == 'VKR':
-            feats = {str(f.get('id')): f for f in L.get('features') or [] if f}
-    raw, ok = set(), set()
-    for r in rows:
-        rid = str(r.get('id') or '')
-        if not re.fullmatch(r'[1-9]\d{0,8}', rid):
-            continue
-        raw.add(rid)
-        f = feats.get(rid)
-        try:
-            lat, lon = f['points'][0]['point']
-        except Exception:
-            continue
-        if not inbox(fnum(lat), fnum(lon), 53.8, 56.5, 20.8, 26.9):
-            continue
-        u = urlparse(str(r.get('image') or ''))
-        if f'{u.scheme}://{u.netloc}' != 'https://eismoinfo.lt' or u.path != '/eismoinfo-backend/image-provider/camera/last' or parse_qs(u.query).get('id', [''])[0] != rid:
-            continue
-        ok.add(rid)
-    return raw, ok, 'camera table joined to VKR layer; official still endpoint'
-
-
-@source('Live Traffic NSW', 'Australia')
-def nsw():
-    d = get('https://data.livetraffic.com/cameras/traffic-cam.json').json()
-    raw, ok = set(), set()
-    for f in d['features']:
-        p = f.get('properties') or {}
-        fid = str(f.get('id') or p.get('id') or p.get('title') or '').strip()
-        if not fid:
-            continue
-        raw.add(fid)
-        href = (p.get('href') or '').replace('http://', 'https://')
-        c = (f.get('geometry') or {}).get('coordinates') or [None, None]
-        if href.startswith('https://webcams.transport.nsw.gov.au/') and inbox(fnum(c[1]), fnum(c[0]), -38.0, -28.0, 140.0, 154.5):
-            ok.add(fid)
-    return raw, ok, 'one feature per camera; official webcams.transport.nsw.gov.au still'
-
-
-@source('City of Calgary', 'Canada')
-def calgary():
-    d = get('https://data.calgary.ca/resource/k7p9-kppz.json?$limit=5000').json()
-    raw, ok = set(), set()
-    for c in d:
-        url = ((c.get('camera_url') or {}).get('url') or '').strip()
-        if not url:
-            continue
-        u = re.sub(r'^http://', 'https://', url)
-        m = re.search(r'loc(\d+)\.jpg$', urlparse(u).path, re.I)
-        key = m.group(1) if m else urlparse(u).path
-        raw.add(key)
-        coords = (c.get('point') or {}).get('coordinates') or [None, None]
-        if u.startswith('https://trafficcam.calgary.ca/') and inbox(fnum(coords[1]), fnum(coords[0]), 50.7, 51.4, -114.5, -113.7):
-            ok.add(key)
-    return raw, ok, f'{len(d)} rows ($limit=5000); distinct trafficcam.calgary.ca image ids'
-
-
-@source('City of Toronto RESCU', 'Canada')
-def toronto():
-    t = get('https://opendata.toronto.ca/transportation/tmc/rescucameraimages/Data/tmcearthcameras.json').text
-    d = json.loads(t[t.index('(') + 1: t.rindex(')')])
-    raw, ok = set(), set()
-    for c in d['Data']:
-        n = str(c.get('Number') or '').strip()
-        if not n:
-            continue
-        raw.add(n)
-        if re.fullmatch(r'\d{1,6}', n) and inbox(fnum(c.get('Latitude')), fnum(c.get('Longitude')), 43.4, 44.0, -79.8, -79.0):
-            ok.add(n)
-    return raw, ok, 'one row per numbered RESCU camera'
-
-
-@source('Servei Català de Trànsit', 'Spain')
-def catalonia():
-    x = get('https://www.gencat.cat/transit/opendata/cameres.xml').text
-    hosts = {'mct.gencat.cat': '/mct2bo/', 'www.bcn.cat': '/transit/imatges/', 'emap.terrassa.cat': '/it_terrassa/'}
-    raw, ok = set(), set()
-    for m in re.finditer(r'<gml:featureMember>([\s\S]*?)</gml:featureMember>', x):
-        b = m.group(1)
-        co = re.search(r'<gml:coordinates[^>]*>([^<]+)</gml:coordinates>', b)
-        lk = re.search(r'<cite:link>([^<]*)</cite:link>', b)
-        if not co or not lk:
-            continue
-        link = lk.group(1).replace('&amp;', '&').strip()
-        u = urlparse(link)
-        cam = parse_qs(u.query).get('sctidcam', [''])[0]
-        key = f'sct:{cam}' if u.hostname == 'mct.gencat.cat' and cam else f'{u.hostname}{u.path}'
-        raw.add(key)
-        lon, lat = (fnum(v) for v in co.group(1).split(',')[:2])
-        if not inbox(lat, lon, 40.4, 42.95, 0.1, 3.4):
-            continue
-        d = hosts.get(u.hostname or '')
-        if not d or not u.path.startswith(d) or u.username or u.password or u.port:
-            continue
-        f = u.path[len(d):]
-        if not f or '/' in f:
-            continue
-        if u.hostname == 'mct.gencat.cat' and (f != 'RenderService' or not re.fullmatch(r'[a-z0-9]+\.(gif|jpe?g)', cam, re.I)):
-            continue
-        ok.add(key)
-    return raw, ok, 'SCT + Barcelona IMI + Terrassa; keyed by frame file (feed fid is unstable)'
-
-
-@source('City of Austin', 'United States')
-def austin():
-    d = get('https://data.austintexas.gov/api/views/b4k4-adkb/rows.json?accessType=DOWNLOAD').json()
-    cols = [c['fieldName'] for c in d['meta']['view']['columns']]
-    raw, ok = set(), set()
-    for row in d['data']:
-        r = dict(zip(cols, row))
-        cid = str(r.get('camera_id') or '').strip()
-        if not cid:
-            continue
-        raw.add(cid)
-        st = (r.get('camera_status') or '').strip().upper()
-        if st and st != 'TURNED_ON':
-            continue
-        m = re.match(r'POINT \(([-\d.]+) ([-\d.]+)\)', r.get('location') or '')
-        if not m or not inbox(fnum(m.group(2)), fnum(m.group(1)), 29.9, 30.8, -98.2, -97.3):
-            continue
-        ok.add(cid)
-    return raw, ok, 'camera_status TURNED_ON'
-
-
-TXDOT = 'ABL AMA ATL AUS BMT BWD BRY CHS CRP DAL ELP FTW HOU LRD LBB LFK ODA PAR PHR SJT SAT TYL WAC WFS YKM'.split()
-
-
-@source('TxDOT ITS', 'United States')
-def txdot():
-    def one(code):
-        for attempt in range(2):
-            try:
-                return code, get(f'https://its.txdot.gov/its/DistrictIts/GetCctvStatusListByDistrict?districtCode={code}',
-                                 headers={'Accept': 'application/json'}, timeout=60).json()
-            except Exception as e:
-                err = e
-        return code, err
-    with ThreadPoolExecutor(8) as ex:
-        res = list(ex.map(one, TXDOT))
-    raw, ok, notes, per = set(), set(), [], {}
-    for code, d in res:
-        if isinstance(d, Exception):
-            notes.append(f'{code} failed: {str(d)[:50]}')
-            continue
-        n = 0
-        for rows in (d.get('roadwayCctvStatuses') or {}).values():
-            for r in rows or []:
-                icd = str(r.get('icd_Id') or '').strip()
-                if not icd:
-                    continue
-                raw.add(icd)
-                if r.get('statusDescription') != 'Device Online' or r.get('hasSnapshot') is False:
-                    continue
-                lat, lon = r.get('latitude'), r.get('longitude')
-                if not (isinstance(lat, (int, float)) and isinstance(lon, (int, float)) and inbox(lat, lon, 25.5, 36.7, -106.8, -93.3)):
-                    continue
-                if icd not in ok:
-                    n += 1
-                ok.add(icd)
-        per[code] = n
-    return raw, ok, f'all 25 districts; Device Online + snapshot; per-district {per}. ' + '; '.join(notes)
-
-
-@source('Ontario 511', 'Canada')
-def ontario():
-    d = get('https://511on.ca/api/v2/get/cameras?format=json&lang=en', headers={'Accept': 'application/json'}).json()
-    raw, ok, views = set(), set(), 0
-    for r in d:
-        rid = str(r.get('Id') or r.get('id') or '').strip()
-        if not rid:
-            continue
-        raw.add(rid)
-        if not inbox(fnum(r.get('Latitude')), fnum(r.get('Longitude')), 41.0, 57.5, -95.6, -74.0):
-            continue
-        good = []
-        for v in r.get('Views') or r.get('views') or []:
-            if str(v.get('Status') or '').strip().lower() != 'enabled':
-                continue
-            u = urlparse(str(v.get('Url') or '').strip())
-            if u.scheme == 'https' and (u.hostname == '511on.ca' or (u.hostname or '').endswith('.traveliq.co')) and re.fullmatch(r'/map/Cctv/[A-Za-z0-9_.-]+', u.path):
-                good.append(v)
-        if good:
-            ok.add(rid)
-            views += len(good)
-    return raw, ok, f'counted per camera row, not per view; {views} enabled views'
-
-
-@source('DelDOT', 'United States')
-def deldot():
-    d = get('https://tmc.deldot.gov/json/videocamera.json', headers={'Accept': 'application/json'}).json()
-    raw, ok = set(), set()
-    for r in d.get('videoCameras') or []:
-        cid = str(r.get('id') or '').strip()
-        if not cid:
-            continue
-        raw.add(cid)
-        if str(r.get('status')).lower() != 'active':
-            continue
-        if not inbox(fnum(r.get('lat')), fnum(r.get('lon')), 38.4, 39.9, -75.85, -75.0):
-            continue
-        u = urlparse(str((r.get('urls') or {}).get('m3u8s') or ''))
-        if u.scheme != 'https' or u.hostname != 'video.deldot.gov' or u.port not in (None, 443) or u.username or not re.fullmatch(r'/live/[A-Za-z0-9_.-]+/playlist\.m3u8', u.path):
-            continue
-        if not re.fullmatch(r'[A-Za-z0-9_-]{1,80}', cid):
-            continue
-        ok.add(cid)
-    return raw, ok, 'status active + official HLS stream'
-
-
-def run(label):
-    fn, country = SRC[label]
-    t0 = time.time()
-    try:
-        raw, ok, note = fn()
-        if not ok:
-            raise RuntimeError('catalog parsed to zero cameras')
-        return label, dict(country=country, raw=len(raw), valid=len(ok), note=note, secs=round(time.time() - t0, 1))
-    except Exception as e:
-        return label, dict(country=country, error=f'{type(e).__name__}: {str(e)[:200]}', secs=round(time.time() - t0, 1))
-
-
-if __name__ == '__main__':
-    out = sys.argv[1]
-    detail = sys.argv[2] if len(sys.argv) > 2 else None
-    with ThreadPoolExecutor(8) as ex:
-        results = dict(ex.map(run, list(SRC)))
-    counted = {k: v for k, v in results.items() if 'valid' in v}
-    for k, v in results.items():
-        print(f"{k:28s} {v.get('country', ''):15s} raw={v.get('raw', '-'):>6} valid={v.get('valid', '-'):>6}  {v.get('error') or v.get('note')}")
-    total = sum(v['valid'] for v in counted.values())
-    res = {
-        'cctv_catalog': total,
-        'cctv_sources': {k: v['valid'] for k, v in counted.items()},
-        'cctv_countries': len({v['country'] for v in counted.values()}),
-        'fetched_utc': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime()),
-    }
-    print('TOTAL valid', total, 'raw', sum(v['raw'] for v in counted.values()), 'countries', res['cctv_countries'])
-    json.dump(res, open(out, 'w'), ensure_ascii=False, indent=2)
-    if detail:
-        json.dump(results, open(detail, 'w'), ensure_ascii=False, indent=2)

intro-sequence/tools/fetch/cctv_fetch.py

@@ -1,406 +0,0 @@
-#!/usr/bin/env python3
-"""Download real current still frames from keyless public traffic-camera feeds.
-
-Stage 1 (this script): build candidate lists from each source's public catalog
-(endpoints mirror server/providers/cctv/*), sample a spread of cameras, download
-frames, compute quality metrics, write <work>/frames/*.jpg + <work>/candidates.json.
-Stage 2 (cctv_select.py) filters, crops to 640x360 and writes cctv/index.json.
-
-Usage: python3 -I cctv_fetch.py <work_dir>
-"""
-import base64, hashlib, io, json, math, random, re, sys, time
-import xml.etree.ElementTree as ET
-from concurrent.futures import ThreadPoolExecutor
-import requests
-from PIL import Image, ImageStat, ImageFilter
-
-WORK = sys.argv[1]
-import os
-os.makedirs(f'{WORK}/frames', exist_ok=True)
-UA_BROWSER = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36'
-S = requests.Session()
-S.headers.update({'User-Agent': UA_BROWSER, 'Digitraffic-User': 'gods-eye-intro'})
-rng = random.Random(42)
-
-
-def get(url, **kw):
-    kw.setdefault('timeout', 40)
-    r = S.get(url, **kw)
-    r.raise_for_status()
-    return r
-
-
-def C(source, name, city, country, lat, lon, url, kind='image'):
-    return dict(source=source, name=name.strip(), city=city, country=country, lat=round(float(lat), 5), lon=round(float(lon), 5), url=url, kind=kind)
-
-
-def nearest(cands, anchors, n):
-    """Spread a pick across anchors: round-robin, nearest cameras to each anchor first, randomized a bit."""
-    buckets = []
-    for (alat, alon, label) in anchors:
-        b = sorted(cands, key=lambda c: (c['lat'] - alat) ** 2 + ((c['lon'] - alon) * math.cos(math.radians(alat))) ** 2)[:max(n * 3, 12)]
-        rng.shuffle(b)
-        for c in b:
-            c['city'] = label if c.get('city') in (None, '', '?') else c['city']
-        buckets.append(b)
-    out, seen = [], set()
-    while len(out) < n and any(buckets):
-        for b in buckets:
-            while b:
-                c = b.pop()
-                if c['url'] not in seen:
-                    seen.add(c['url']); out.append(c); break
-    return out[:n]
-
-
-def sample(cands, n):
-    cands = list(cands)
-    rng.shuffle(cands)
-    return cands[:n]
-
-
-SOURCES = {}
-
-
-def source(fn):
-    SOURCES[fn.__name__] = fn
-    return fn
-
-
-@source
-def tfl(n):
-    d = get('https://api.tfl.gov.uk/Place/Type/JamCam').json()
-    out = []
-    for p in d:
-        props = {a['key']: a['value'] for a in p.get('additionalProperties', [])}
-        if props.get('available') != 'true' or not props.get('imageUrl'):
-            continue
-        out.append(C('TfL JamCams', p['commonName'], 'London', 'United Kingdom', p['lat'], p['lon'], props['imageUrl']))
-    return nearest(out, [(51.5074, -0.1278, 'London')], n)
-
-
-@source
-def nyc(n):
-    d = get('https://webcams.nyctmc.org/api/cameras').json()
-    out = [C('NYC DOT', c['name'], f"New York ({c.get('area')})", 'United States', c['latitude'], c['longitude'],
-             f"https://webcams.nyctmc.org/api/cameras/{c['id']}/image") for c in d if str(c.get('isOnline')).lower() == 'true']
-    return nearest(out, [(40.758, -73.9855, 'New York'), (40.7128, -74.006, 'New York'), (40.6782, -73.9442, 'New York'), (40.7282, -73.7949, 'New York')], n)
-
-
-@source
-def caltrans(n):
-    out = []
-    for dist, city in [(4, 'San Francisco Bay Area'), (7, 'Los Angeles'), (11, 'San Diego'), (3, 'Sacramento')]:
-        try:
-            d = get(f'https://cwwp2.dot.ca.gov/data/d{dist}/cctv/cctvStatusD{dist:02d}.json').json()
-        except Exception as e:
-            print('caltrans', dist, e); continue
-        for row in d['data']:
-            c = row['cctv']
-            url = (c.get('imageData', {}).get('static') or {}).get('currentImageURL')
-            if c.get('inService') != 'true' or not url:
-                continue
-            loc = c['location']
-            out.append(C('Caltrans CCTV', loc['locationName'], loc.get('nearbyPlace') or city, 'United States', loc['latitude'], loc['longitude'], url))
-    return nearest(out, [(37.7793, -122.4193, 'San Francisco'), (34.0537, -118.2428, 'Los Angeles'), (32.7157, -117.1611, 'San Diego'), (38.5816, -121.4944, 'Sacramento')], n)
-
-
-@source
-def wsdot(n):
-    d = json.loads(get('https://data.wsdot.wa.gov/travelcenter/Cameras.json').content.decode('cp1252'))
-    out = []
-    for f in d['features']:
-        a, g = f['attributes'], f['geometry']
-        url = a.get('ImageURL') or ''
-        if not url.startswith('https://images.wsdot.wa.gov/'):
-            continue
-        lon = g['x'] / 6378137 * 180 / math.pi
-        lat = (2 * math.atan(math.exp(g['y'] / 6378137)) - math.pi / 2) * 180 / math.pi
-        out.append(C('WSDOT', a['CameraTitle'], '', 'United States', lat, lon, url))
-    return nearest(out, [(47.6062, -122.3321, 'Seattle'), (47.6588, -117.426, 'Spokane')], n)
-
-
-@source
-def kingco(n):
-    d = get('https://services.arcgis.com/Ej0PsM5Aw677QF1W/arcgis/rest/services/TRAFFICCAMERA_POINT_2029/FeatureServer/0/query?where=1%3D1&outFields=AssetID,Location,ImageURL,Live,Model,Manufacturer,Owner,CurrentStatus&f=geojson').json()
-    out = []
-    for f in d['features']:
-        p = f['properties']
-        url = (p.get('ImageURL') or '').replace('http://info.kingcounty.gov/', 'https://info.kingcounty.gov/')
-        if p.get('CurrentStatus') != 'Active' or not url.startswith('https://info.kingcounty.gov/'):
-            continue
-        lon, lat = f['geometry']['coordinates'][:2]
-        out.append(C('King County DOT', p['Location'], 'King County, WA', 'United States', lat, lon, url))
-    return sample(out, n)
-
-
-@source
-def drivebc(n):
-    d = get('https://www.drivebc.ca/api/webcams/').json()
-    out = []
-    for c in d:
-        if not c.get('is_on') or c.get('marked_stale') or not c.get('should_appear', True):
-            continue
-        lon, lat = c['location']['coordinates'][:2]
-        out.append(C('DriveBC', c['name'], c.get('region_name') or 'British Columbia', 'Canada', lat, lon, f"https://www.drivebc.ca/images/{c['id']}.jpg"))
-    return nearest(out, [(49.2827, -123.1207, 'Vancouver'), (48.4284, -123.3656, 'Victoria'), (50.1163, -122.9574, 'Whistler')], n)
-
-
-@source
-def calgary(n):
-    d = get('https://data.calgary.ca/resource/k7p9-kppz.json?$limit=500').json()
-    out = []
-    for c in d:
-        url = (c.get('camera_url') or {}).get('url', '').replace('http://', 'https://')
-        if not url.startswith('https://trafficcam.calgary.ca/'):
-            continue
-        lon, lat = c['point']['coordinates'][:2]
-        out.append(C('City of Calgary', c['camera_location'], 'Calgary', 'Canada', lat, lon, url))
-    return nearest(out, [(51.0461, -114.0626, 'Calgary')], n)
-
-
-@source
-def toronto(n):
-    t = get('https://opendata.toronto.ca/transportation/tmc/rescucameraimages/Data/tmcearthcameras.json').text
-    d = json.loads(t[t.index('(') + 1: t.rindex(')')])
-    out = [C('City of Toronto RESCU', c['Name'].title(), 'Toronto', 'Canada', c['Latitude'], c['Longitude'],
-             f"https://opendata.toronto.ca/transportation/tmc/rescucameraimages/CameraImages/loc{c['Number']}.jpg")
-           for c in d['Data'] if re.fullmatch(r'\d+', str(c['Number']))]
-    return nearest(out, [(43.6532, -79.3832, 'Toronto')], n)
-
-
-@source
-def txdot(n):
-    out = []
-    for code, city in [('HOU', 'Houston'), ('DAL', 'Dallas'), ('AUS', 'Austin'), ('SAT', 'San Antonio'), ('ELP', 'El Paso')]:
-        try:
-            d = get(f'https://its.txdot.gov/its/DistrictIts/GetCctvStatusListByDistrict?districtCode={code}').json()
-        except Exception as e:
-            print('txdot', code, e); continue
-        seen = set()
-        for rows in d['roadwayCctvStatuses'].values():
-            for r in rows:
-                if r.get('statusDescription') != 'Device Online' or r.get('hasSnapshot') is False or r['icd_Id'] in seen:
-                    continue
-                if not isinstance(r.get('latitude'), (int, float)) or not r['latitude']:
-                    continue
-                seen.add(r['icd_Id'])
-                url = 'https://its.txdot.gov/its/DistrictIts/GetCctvSnapshotByIcdId?' + requests.compat.urlencode({'icdId': r['icd_Id'], 'districtCode': code})
-                out.append(C('TxDOT ITS', r['name'], city, 'United States', r['latitude'], r['longitude'], url, kind='txdot'))
-    return nearest(out, [(29.7604, -95.3698, 'Houston'), (32.7767, -96.797, 'Dallas'), (29.4241, -98.4936, 'San Antonio'), (31.7619, -106.485, 'El Paso')], n)
-
-
-@source
-def austin(n):
-    d = get('https://data.austintexas.gov/api/views/b4k4-adkb/rows.json?accessType=DOWNLOAD').json()
-    cols = [c['fieldName'] for c in d['meta']['view']['columns']]
-    out = []
-    for row in d['data']:
-        r = dict(zip(cols, row))
-        if (r.get('camera_status') or '').strip().upper() != 'TURNED_ON':
-            continue
-        m = re.match(r'POINT \(([-\d.]+) ([-\d.]+)\)', r.get('location') or '')
-        if not m or not r.get('camera_id'):
-            continue
-        out.append(C('City of Austin', (r.get('location_name') or '').strip(), 'Austin', 'United States', m.group(2), m.group(1),
-                     f"https://cctv.austinmobility.io/image/{r['camera_id']}.jpg"))
-    return nearest(out, [(30.2672, -97.7431, 'Austin')], n)
-
-
-@source
-def fintraffic(n):
-    d = get('https://tie.digitraffic.fi/api/weathercam/v1/stations').json()
-    out = []
-    for f in d['features']:
-        p = f['properties']
-        if p.get('collectionStatus') != 'GATHERING':
-            continue
-        lon, lat = f['geometry']['coordinates'][:2]
-        for pr in p.get('presets', []):
-            if pr.get('inCollection'):
-                out.append(C('Fintraffic Digitraffic', p['name'].replace('_', ' '), '', 'Finland', lat, lon, f"https://weathercam.digitraffic.fi/{pr['id']}.jpg"))
-                break
-    return nearest(out, [(60.1699, 24.9384, 'Helsinki'), (61.4978, 23.761, 'Tampere'), (65.0121, 25.4651, 'Oulu'), (66.5039, 25.7294, 'Rovaniemi'), (60.4518, 22.2666, 'Turku')], n)
-
-
-@source
-def vegvesen(n):
-    d = get('https://ogckart-sn1.atlas.vegvesen.no/ogc/features/v1/collections/datex_3_1:CctvSimple/items?f=application/geo%2Bjson&limit=5000').json()
-    out = []
-    for f in d['features']:
-        p = f['properties']
-        url = p.get('stillImageUrl') or ''
-        if not url.startswith('https://kamera.atlas.vegvesen.no/api/images/'):
-            continue
-        lon, lat = f['geometry']['coordinates'][:2]
-        name = ' - '.join(x for x in [p.get('description'), p.get('roadNumber')] if x)
-        out.append(C('Statens vegvesen', name, '', 'Norway', lat, lon, url))
-    return nearest(out, [(59.9139, 10.7522, 'Oslo'), (60.3913, 5.3221, 'Bergen'), (63.4305, 10.3951, 'Trondheim'), (69.6492, 18.9553, 'Tromsø'), (58.97, 5.7331, 'Stavanger')], n)
-
-
-@source
-def tallinn(n):
-    d = json.load(open('/home/user/gods-eye-view/config/cctv_sources.tallinn.json'))
-    out = [C('City of Tallinn', c['name'], 'Tallinn', 'Estonia', c['lat'], c['lon'], c['snapshotUrl']) for c in d if c.get('snapshotUrl', '').startswith('https://ristmikud.tallinn.ee/')]
-    return sample(out, n)
-
-
-@source
-def tarktee(n):
-    ns = {'d': 'http://datex2.eu/schema/2/2_0'}
-    loc = ET.fromstring(get('https://tarktee.transpordiamet.ee/api/v1/datex/roadCameraLocations').content)
-    locs = {}
-    for pl in loc.iter('{http://datex2.eu/schema/2/2_0}predefinedLocation'):
-        lat = pl.find('.//d:latitude', ns); lon = pl.find('.//d:longitude', ns); nm = pl.find('.//d:value', ns)
-        if lat is not None and lon is not None:
-            locs[pl.get('id')] = (float(lat.text), float(lon.text), nm.text if nm is not None else '')
-    img = ET.fromstring(get('https://tarktee.transpordiamet.ee/api/v1/datex/roadCameraImages').content)
-    out = []
-    for tv in img.iter('{http://datex2.eu/schema/2/2_0}linearTrafficView'):
-        ref = tv.find('d:linearPredefinedLocationReference', ns)
-        u = tv.find('.//d:urlLinkAddress', ns)
-        if ref is None or u is None or ref.get('id') not in locs:
-            continue
-        lat, lon, nm = locs[ref.get('id')]
-        out.append(C('Transpordiamet Tarktee', nm, '', 'Estonia', lat, lon, u.text))
-    return nearest(out, [(59.437, 24.753, 'Tallinn'), (58.378, 26.729, 'Tartu'), (58.3859, 24.4971, 'Pärnu')], n)
-
-
-@source
-def lithuania(n):
-    rows = get('https://eismoinfo.lt/eismoinfo-backend/camera-info-table').json()
-    layer = get('https://eismoinfo.lt/eismoinfo-backend/layer-static-features/VKR').json()
-    feats = {str(f.get('id')): f for L in layer for f in L.get('features', [])}
-    out = []
-    for r in rows:
-        f = feats.get(str(r.get('id')))
-        try:
-            lat, lon = f['points'][0]['point']
-        except Exception:
-            continue
-        out.append(C('Via Lietuva eismoinfo', r['name'], '', 'Lithuania', lat, lon, f"https://eismoinfo.lt/eismoinfo-backend/image-provider/camera/last?id={r['id']}"))
-    return nearest(out, [(54.6872, 25.2797, 'Vilnius'), (54.8985, 23.9036, 'Kaunas'), (55.7033, 21.1443, 'Klaipėda')], n)
-
-
-@source
-def catalonia(n):
-    x = get('https://www.gencat.cat/transit/opendata/cameres.xml').text
-    out = []
-    for m in re.finditer(r'<gml:coordinates[^>]*>([-\d.]+),([-\d.]+)</gml:coordinates>.*?<cite:carretera>(.*?)</cite:carretera>.*?<cite:municipi>(.*?)</cite:municipi>.*?<cite:link>(.*?)</cite:link>.*?<cite:font>(.*?)</cite:font>', x, re.S):
-        lon, lat, road, muni, link, font = m.groups()
-        link = link.replace('&amp;', '&').replace('http://', 'https://')
-        if font not in ('SCT', 'IMI', 'Terrassa'):
-            continue
-        city = 'Barcelona' if font == 'IMI' else ('Terrassa' if font == 'Terrassa' else muni)
-        out.append(C('Servei Català de Trànsit', f'{road} {muni}', city, 'Spain', lat, lon, link))
-    return nearest(out, [(41.3874, 2.1686, 'Barcelona'), (41.5636, 2.0111, 'Terrassa'), (41.45, 2.2, 'Barcelona area')], n)
-
-
-@source
-def nsw(n):
-    d = get('https://data.livetraffic.com/cameras/traffic-cam.json').json()
-    out = []
-    for f in d['features']:
-        p = f['properties']
-        href = (p.get('href') or '').replace('http://', 'https://')
-        if not href.startswith('https://webcams.transport.nsw.gov.au/'):
-            continue
-        lon, lat = f['geometry']['coordinates'][:2]
-        out.append(C('Live Traffic NSW', p['title'], '', 'Australia', lat, lon, href))
-    return nearest(out, [(-33.8688, 151.2093, 'Sydney'), (-32.9283, 151.7817, 'Newcastle'), (-34.4278, 150.8931, 'Wollongong'), (-33.8, 151.0, 'Western Sydney')], n)
-
-
-@source
-def singapore(n):
-    d = get('https://api.data.gov.sg/v1/transport/traffic-images').json()
-    out = [C('LTA Singapore (data.gov.sg)', f"Camera {c['camera_id']}", 'Singapore', 'Singapore', c['location']['latitude'], c['location']['longitude'], c['image'])
-           for c in d['items'][0]['cameras']]
-    return sample(out, n)
-
-
-@source
-def hongkong(n):
-    x = ET.fromstring(get('https://static.data.gov.hk/td/traffic-snapshot-images/code/Traffic_Camera_Locations_En.xml').content)
-    out = []
-    for im in x.iter('image'):
-        g = lambda k: (im.findtext(k) or '').strip()
-        if not g('url').startswith('https://tdcctv.data.one.gov.hk/'):
-            continue
-        out.append(C('HK Transport Department', re.sub(r'\s*\[.*?\]$', '', g('description')), f"Hong Kong ({g('district')})", 'Hong Kong', g('latitude'), g('longitude'), g('url')))
-    return sample(out, n)
-
-
-@source
-def nz(n):
-    d = get('https://trafficnz.info/service/traffic/rest/4/cameras/all', headers={'Accept': 'application/json'}).json()
-    out = []
-    for c in d['response']['camera']:
-        if c.get('offline') or c.get('underMaintenance'):
-            continue
-        out.append(C('NZTA Waka Kotahi', (c.get('name') or '').strip() + (' - ' + c['description'] if c.get('description') else ''),
-                     (c.get('region') or {}).get('name', ''), 'New Zealand', c['latitude'], c['longitude'], 'https://trafficnz.info' + c['imageUrl']))
-    return nearest(out, [(-36.8485, 174.7633, 'Auckland'), (-41.2865, 174.7762, 'Wellington'), (-43.5321, 172.6362, 'Christchurch'), (-37.787, 175.279, 'Hamilton'), (-45.0312, 168.6626, 'Queenstown')], n)
-
-
-TARGETS = dict(nsw=26, hongkong=24, singapore=18, nz=20, nyc=20, caltrans=18, wsdot=12, kingco=6, drivebc=14, calgary=8,
-               toronto=10, txdot=10, austin=8, tfl=14, fintraffic=10, vegvesen=10, tallinn=6, tarktee=6, lithuania=8, catalonia=10)
-
-
-def fetch_frame(c):
-    try:
-        hdr = {}
-        if c['kind'] == 'txdot':
-            r = S.get(c['url'], timeout=30, headers={'Accept': 'application/json'})
-            r.raise_for_status()
-            js = r.json()
-            b64 = js.get('snippet') or js.get('Snippet') or ''
-            data = base64.b64decode(b64.split(',')[-1])
-        else:
-            r = S.get(c['url'], timeout=30)
-            r.raise_for_status()
-            data = r.content
-        im = Image.open(io.BytesIO(data))
-        im.load()
-        im = im.convert('RGB')
-        g = im.convert('L')
-        st = ImageStat.Stat(g)
-        edges = ImageStat.Stat(g.resize((320, 180)).filter(ImageFilter.FIND_EDGES)).mean[0]
-        sat = ImageStat.Stat(im.convert('HSV').split()[1]).mean[0]
-        small = g.resize((16, 9))
-        px = list(small.tobytes())
-        ahash = ''.join('1' if p > sum(px) / len(px) else '0' for p in px)
-        h = hashlib.md5(c['url'].encode()).hexdigest()[:12]
-        path = f'{WORK}/frames/{h}.jpg'
-        im.save(path, quality=95)
-        c.update(ok=True, file=path, w=im.width, h=im.height, mean=round(st.mean[0], 1), std=round(st.stddev[0], 1),
-                 edges=round(edges, 2), sat=round(sat, 1), ahash=ahash, bytes=len(data), fetched=time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime()))
-    except Exception as e:
-        c.update(ok=False, err=str(e)[:160])
-    return c
-
-
-if __name__ == '__main__':
-    only = sys.argv[2].split(',') if len(sys.argv) > 2 else list(SOURCES)
-    cands = []
-    for name in only:
-        try:
-            got = SOURCES[name](TARGETS.get(name, 8))
-            print(f'{name}: {len(got)} candidates')
-            for g in got:
-                g['src_key'] = name
-            cands += got
-        except Exception as e:
-            print(f'{name}: CATALOG FAILED {e}')
-    with ThreadPoolExecutor(24) as ex:
-        res = list(ex.map(fetch_frame, cands))
-    prev = []
-    pth = f'{WORK}/candidates.json'
-    if os.path.exists(pth):
-        prev = [p for p in json.load(open(pth)) if p['src_key'] not in only]
-    json.dump(prev + res, open(pth, 'w'), ensure_ascii=False, indent=0)
-    from collections import Counter
-    print('ok per source', Counter(c['src_key'] for c in res if c['ok']))
-    print('fail per source', Counter(c['src_key'] for c in res if not c['ok']))
-    for c in res:
-        if not c['ok']:
-            print('  FAIL', c['src_key'], c['url'][:90], c['err'][:100])

intro-sequence/tools/fetch/cctv_select.py

@@ -1,42 +0,0 @@
-#!/usr/bin/env python3
-"""Stage 2: pick a spread of good frames from cctv_fetch.py output, cover-crop to 640x360, write cctv/index.json.
-Usage: python3 -I cctv_select.py <work_dir> <out_cctv_dir>
-EXCLUDE lists frames rejected on visual review of the contact sheets (placeholders such as
-'Temporarily Unavailable', 'Kamera er midlertidig ute av drift', 'NB! ÜHENDUS KAAMERAGA PUUDUB',
-'Interrupció temporal de la imatge', and an all-black King County frame)."""
-import json, os, sys
-from collections import Counter
-from PIL import Image
-W, OUT = sys.argv[1], sys.argv[2]
-ok = json.load(open(f'{W}/ok.json'))
-EXCLUDE = {40, 43, 45, 46, 49, 66, 126, 139, 148, 150}
-PREFER = {'hongkong': [187, 195, 197, 198, 201, 205, 206, 196, 200, 202]}  # fewest privacy-mask polygons
-QUOTA = dict(nsw=12, hongkong=10, singapore=6, nz=12, nyc=9, caltrans=6, wsdot=6, kingco=3, drivebc=6, calgary=4, toronto=6,
-             txdot=4, austin=4, tfl=8, fintraffic=4, vegvesen=4, tallinn=3, tarktee=3, lithuania=4, catalonia=3)
-hash_count = Counter(x['ahash'] for x in ok)
-good = [x for x in ok if x['i'] not in EXCLUDE and hash_count[x['ahash']] == 1 and x['w'] >= 320 and x['mean'] > 25 and x['std'] > 15]
-pick = []
-for src, q in QUOTA.items():
-    pool = [x for x in good if x['src_key'] == src]
-    pref = [x for i in PREFER.get(src, []) for x in pool if x['i'] == i]
-    rest = sorted([x for x in pool if x not in pref], key=lambda x: -(x['std'] * x['edges']))
-    pick += (pref + rest)[:q]
-os.makedirs(OUT, exist_ok=True)
-for f in os.listdir(OUT):
-    if f.startswith('cam_') and f.endswith('.jpg'):
-        os.remove(os.path.join(OUT, f))
-index = []
-for n, x in enumerate(pick, 1):
-    im = Image.open(x['file']).convert('RGB')
-    w, h = im.size
-    s = max(640 / w, 360 / h)
-    im = im.resize((max(640, round(w * s)), max(360, round(h * s))), Image.LANCZOS)
-    w, h = im.size
-    l, t = (w - 640) // 2, (h - 360) // 2
-    im = im.crop((l, t, l + 640, t + 360))
-    fn = f'cam_{n:03d}.jpg'
-    im.save(os.path.join(OUT, fn), quality=88)
-    index.append(dict(file=fn, name=x['name'], city=x['city'], country=x['country'], lat=x['lat'], lon=x['lon'], source=x['source'],
-                      fetched_utc=x['fetched'], orig_size=[x['w'], x['h']], url=x['url']))
-json.dump(index, open(os.path.join(OUT, 'index.json'), 'w'), ensure_ascii=False, indent=1)
-print(len(index), Counter(i['country'] for i in index))

intro-sequence/tools/fetch/fetch_basic.sh

@@ -1,33 +0,0 @@
-#!/usr/bin/env bash
-# Re-fetch the raw keyless feeds used by process_basic.py / process_tle.py / process_vessels.py.
-# Usage: fetch_basic.sh <raw_dir>   then:
-#   python3 -I process_basic.py <raw_dir> ../../data
-#   python3 -I process_tle.py <raw_dir> ../../data
-#   python3 -I process_vessels.py <raw_dir> ../../data
-#   <venv with eccodes,numpy,requests>/python -I fetch_wind.py https://noaa-gfs-bdp-pds.s3.amazonaws.com/gfs.YYYYMMDD/HH/atmos/gfs.tHHz.pgrb2.1p00.f006 ../../data/wind.json
-#   python -I fetch_bonus.py ../../data <raw_dir>
-#   python -I cctv_fetch.py <work_dir> && python -I cctv_select.py <work_dir> ../../cctv   (after rebuilding ok.json/contact sheets and re-reviewing EXCLUDE)
-set -u
-R="$1"; mkdir -p "$R"; cd "$R"
-date -u +%Y-%m-%dT%H:%M:%SZ > fetch_start.txt
-CT='gods-eye-view-celestrak-proxy/1.0 (+https://github.com/bilawalsidhu/gods-eye-view)'  # CelesTrak 403s bulk groups without a descriptive UA
-f() { curl -sS -m 300 --compressed "${@:3}" -o "$1" -w "$1 %{http_code} %{size_download}\n" "$2"; }
-f opensky.json https://opensky-network.org/api/states/all &
-f mil.json https://api.adsb.lol/v2/mil &
-f mil_adsbfi.json https://opendata.adsb.fi/api/v2/mil &
-f quakes.geojson https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson &
-f viirs_snpp.csv https://firms.modaps.eosdis.nasa.gov/data/active_fire/suomi-npp-viirs-c2/csv/SUOMI_VIIRS_C2_Global_24h.csv &
-f viirs_n20.csv https://firms.modaps.eosdis.nasa.gov/data/active_fire/noaa-20-viirs-c2/csv/J1_VIIRS_C2_Global_24h.csv &
-f modis.csv https://firms.modaps.eosdis.nasa.gov/data/active_fire/modis-c6.1/csv/MODIS_C6_1_Global_24h.csv &
-f cables.json https://www.submarinecablemap.com/api/v3/cable/cable-geo.json &
-f coast50.geojson https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_50m_coastline.geojson &
-f countries110.geojson https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_110m_admin_0_countries.geojson &
-f places.geojson https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_10m_populated_places_simple.geojson &
-f airports.csv https://davidmegginson.github.io/ourairports-data/airports.csv &
-f kystverket_ais.json https://kystdatahuset.kystverket.no/ws/api/ais/realtime/geojson &
-f dt_ais_from.json "https://meri.digitraffic.fi/api/ais/v1/locations?from=$(( ($(date +%s)-172800)*1000 ))" -H "Digitraffic-User: gods-eye-intro" &
-f digitraffic_vessels.json https://meri.digitraffic.fi/api/ais/v1/vessels -H "Digitraffic-User: gods-eye-intro" &
-wait
-# CelesTrak: sequential (parallel requests get connection resets); FORMAT=3le endpoint answered when FORMAT=tle timed out
-f tle_active3.txt "https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=3le" -A "$CT"
-for g in stations starlink gps-ops geo weather; do sleep 3; f tle_$g.txt "https://celestrak.org/NORAD/elements/gp.php?GROUP=$g&FORMAT=tle" -A "$CT"; done

intro-sequence/tools/fetch/fetch_bonus.py

@@ -1,133 +0,0 @@
-#!/usr/bin/env python3
-"""Bonus layers: radio stations (Radio Browser), GBFS bike stations, launch pads (Launch Library 2),
-power plants (WRI Global Power Plant Database).  Usage: python3 -I fetch_bonus.py <out_data_dir> <raw_dir>"""
-import csv, io, json, os, sys, time, zipfile
-import requests
-
-OUT, RAW = sys.argv[1], sys.argv[2]
-only = sys.argv[3].split(',') if len(sys.argv) > 3 else ['radio', 'gbfs', 'pads', 'power']
-S = requests.Session()
-S.headers['User-Agent'] = 'GodsEyeView/1.0 intro-sequence data snapshot'
-log = {}
-
-
-def dump(name, obj):
-    with open(os.path.join(OUT, name), 'w') as f:
-        json.dump(obj, f, separators=(',', ':'), ensure_ascii=False)
-
-
-if 'radio' in only:
-    rows, used = [], None
-    for host in ['https://de1.api.radio-browser.info', 'https://de2.api.radio-browser.info', 'https://nl1.api.radio-browser.info']:
-        try:
-            r = S.get(f'{host}/json/stations/search', params={'has_geo_info': 'true', 'hidebroken': 'true', 'limit': 100000}, timeout=180,
-                      headers={'User-Agent': 'GodsEyeView/1.0 (Radio Browser directory client)'})
-            r.raise_for_status()
-            data = r.json(); used = host
-            break
-        except Exception as e:
-            print('radio', host, e)
-    seen = set()
-    for s in data:
-        lat, lon = s.get('geo_lat'), s.get('geo_long')
-        if lat is None or lon is None or (abs(lat) < 0.01 and abs(lon) < 0.01):
-            continue
-        key = (round(lon, 3), round(lat, 3), s['name'].strip())
-        if key in seen:
-            continue
-        seen.add(key)
-        rows.append([round(lon, 4), round(lat, 4), s['name'].strip(), s.get('countrycode') or ''])
-    dump('radio.json', {'cols': ['lon', 'lat', 'name', 'cc'], 'rows': rows})
-    log['radio'] = dict(url=f'{used}/json/stations/search?has_geo_info=true&hidebroken=true&limit=100000', rows=len(rows))
-    print('radio', len(rows))
-
-if 'gbfs' in only:
-    SYSTEMS = {
-        'Citi Bike (New York)': 'https://gbfs.lyft.com/gbfs/2.3/bkn/en/station_information.json',
-        'Divvy (Chicago)': 'https://gbfs.lyft.com/gbfs/2.3/chi/en/station_information.json',
-        'Bay Wheels (SF Bay)': 'https://gbfs.lyft.com/gbfs/2.3/bay/en/station_information.json',
-        'Capital Bikeshare (DC)': 'https://gbfs.lyft.com/gbfs/2.3/dca-cabi/en/station_information.json',
-        'Bluebikes (Boston)': 'https://gbfs.bluebikes.com/gbfs/en/station_information.json',
-        'Bike Share Toronto': 'https://toronto.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'BIXI (Montreal)': 'https://gbfs.velobixi.com/gbfs/en/station_information.json',
-        'Ecobici (Mexico City)': 'https://gbfs.mex.lyftbikes.com/gbfs/en/station_information.json',
-        'Velib Metropole (Paris)': 'https://velib-metropole-opendata.smovengo.cloud/opendata/Velib_Metropole/station_information.json',
-        'Bicing (Barcelona)': 'https://barcelona.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'BiciMAD (Madrid)': 'https://madrid.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'Bike Sampa (Sao Paulo)': 'https://saopaulo.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'Bike Rio (Rio de Janeiro)': 'https://riodejaneiro.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'Bike Santiago': 'https://santiago.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'Tembici Bogota': 'https://bogota.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
-        'Indego (Philadelphia)': 'https://gbfs.bcycle.com/bcycle_indego/station_information.json',
-        'Metro Bike Share (LA)': 'https://gbfs.bcycle.com/bcycle_lametro/station_information.json',
-        'Oslo Bysykkel': 'https://gbfs.urbansharing.com/oslobysykkel.no/station_information.json',
-    }
-    rows, per = [], {}
-    for name, url in SYSTEMS.items():
-        try:
-            d = S.get(url, timeout=60, headers={'Client-Identifier': 'gods-eye-view'}).json()
-            st = d['data']['stations']
-            for s in st:
-                rows.append([round(float(s['lon']), 5), round(float(s['lat']), 5)])
-            per[name] = len(st)
-        except Exception as e:
-            per[name] = f'FAILED {str(e)[:80]}'
-    # nextbike: one keyless global live feed covering every nextbike city
-    try:
-        d = S.get('https://api.nextbike.net/maps/nextbike-live.json', timeout=120).json()
-        n = 0
-        for c in d['countries']:
-            for city in c.get('cities', []):
-                for p in city.get('places', []):
-                    if p.get('spot'):  # stations only, not free-floating bikes
-                        rows.append([round(p['lng'], 5), round(p['lat'], 5)]); n += 1
-        per['nextbike (all cities, global)'] = n
-    except Exception as e:
-        per['nextbike'] = f'FAILED {e}'
-    dump('bikes.json', {'cols': ['lon', 'lat'], 'systems': per, 'rows': rows})
-    log['gbfs'] = dict(systems=per, urls=list(SYSTEMS.values()) + ['https://api.nextbike.net/maps/nextbike-live.json'], rows=len(rows))
-    print('bikes', len(rows), per)
-
-if 'pads' in only:
-    url = 'https://ll.thespacedevs.com/2.3.0/pads/?limit=100&mode=list'
-    rows = []
-    while url:
-        r = S.get(url, timeout=60)
-        r.raise_for_status()
-        d = r.json()
-        for p in d['results']:
-            try:
-                lat, lon = float(p['latitude']), float(p['longitude'])
-            except (TypeError, ValueError, KeyError):
-                continue
-            loc = p.get('location') or {}
-            rows.append([round(lon, 4), round(lat, 4), p['name'], loc.get('name') if isinstance(loc, dict) else None,
-                         p.get('total_launch_count') or 0, bool(p.get('active'))])
-        url = d.get('next')
-        time.sleep(1)
-    rows.sort(key=lambda x: -x[4])
-    dump('launch_sites.json', {'cols': ['lon', 'lat', 'pad', 'location', 'total_launches', 'active'], 'rows': rows})
-    log['pads'] = dict(url='https://ll.thespacedevs.com/2.3.0/pads/?limit=100&mode=list (paged)', rows=len(rows))
-    print('pads', len(rows))
-
-if 'power' in only:
-    url = 'https://raw.githubusercontent.com/wri/global-power-plant-database/master/output_database/global_power_plant_database.csv'
-    r = S.get(url, timeout=180)
-    r.raise_for_status()
-    rows = []
-    for row in csv.DictReader(io.StringIO(r.content.decode('utf-8'))):
-        try:
-            rows.append([round(float(row['longitude']), 4), round(float(row['latitude']), 4), round(float(row['capacity_mw']), 1), row['primary_fuel'], row['name'], row['country']])
-        except ValueError:
-            pass
-    rows.sort(key=lambda x: -x[2])
-    dump('power_plants.json', {'cols': ['lon', 'lat', 'capacity_mw', 'fuel', 'name', 'iso3'], 'rows': rows})
-    log['power'] = dict(url=url, rows=len(rows))
-    print('power', len(rows))
-
-prev = {}
-p = os.path.join(RAW, 'bonus_log.json')
-if os.path.exists(p):
-    prev = json.load(open(p))
-prev.update(log)
-json.dump(prev, open(p, 'w'), indent=1)

intro-sequence/tools/fetch/fetch_wind.py

@@ -1,28 +0,0 @@
-#!/usr/bin/env python3
-"""GFS 1.0 deg 10 m wind U/V from NOAA's AWS Open Data bucket (noaa-gfs-bdp-pds) via .idx byte
-ranges, same approach as server/providers/wind/gfs.js; decoded with python `eccodes` (pip).
-Usage: python fetch_wind.py <gfs file base url (no .idx)> <out wind.json>"""
-import json, sys, requests, numpy as np, eccodes
-base, out = sys.argv[1], sys.argv[2]
-lines = [l.split(':') for l in requests.get(base + '.idx', timeout=60).text.strip().split('\n')]
-def field(var):
-    i = next(k for k, p in enumerate(lines) if p[3] == var and p[4] == '10 m above ground')
-    s, e = int(lines[i][1]), int(lines[i + 1][1]) - 1
-    b = requests.get(base, headers={'Range': f'bytes={s}-{e}'}, timeout=120).content
-    h = eccodes.codes_new_from_message(b)
-    g = {k: eccodes.codes_get(h, k) for k in ['Ni', 'Nj', 'dataDate', 'dataTime', 'step']}
-    g.update({k: eccodes.codes_get_double(h, k) for k in ['longitudeOfFirstGridPointInDegrees', 'latitudeOfFirstGridPointInDegrees', 'iDirectionIncrementInDegrees', 'jDirectionIncrementInDegrees']})
-    g['values'] = eccodes.codes_get_values(h).reshape(g['Nj'], g['Ni'])
-    eccodes.codes_release(h)
-    return g
-U, V = field('UGRD'), field('VGRD')
-assert U['longitudeOfFirstGridPointInDegrees'] == 0 and U['latitudeOfFirstGridPointInDegrees'] == 90
-dx = U['iDirectionIncrementInDegrees']; shift = int(round(180 / dx))
-u = np.roll(U['values'], -shift, axis=1); v = np.roll(V['values'], -shift, axis=1)  # lon 0..359 -> -180..179
-ny, nx = u.shape
-json.dump({'source': 'NOAA GFS 1.0deg ' + base.split('/')[-1], 'refTime': f"{U['dataDate']} {U['dataTime']:04d}Z", 'forecastHour': U['step'],
-           'level': '10 m above ground', 'units': 'm/s', 'nx': nx, 'ny': ny, 'lo1': -180, 'la1': 90, 'dx': dx, 'dy': U['jDirectionIncrementInDegrees'],
-           'u': [round(float(x), 2) for x in u.ravel()], 'v': [round(float(x), 2) for x in v.ravel()]},
-          open(out, 'w'), separators=(',', ':'))
-sp = np.hypot(u, v)
-print(nx, ny, 'max', sp.max().round(1), 'mean', sp.mean().round(2), U['dataDate'], U['dataTime'], 'f', U['step'])

intro-sequence/tools/fetch/process_basic.py

@@ -1,172 +0,0 @@
-#!/usr/bin/env python3
-"""Convert raw fetched feeds (see fetch_basic.sh) into compact intro-sequence JSON.
-
-Usage: python3 -I process_basic.py <raw_dir> <out_data_dir>
-All inputs are real downloads; this only filters, reprojects units and rounds.
-"""
-import csv, json, os, sys, time
-
-RAW, OUT = sys.argv[1], sys.argv[2]
-meta = {}
-
-
-def r(x, n):
-    return None if x is None else round(float(x), n)
-
-
-def dump(name, obj):
-    p = os.path.join(OUT, name)
-    with open(p, 'w') as f:
-        json.dump(obj, f, separators=(',', ':'), ensure_ascii=False)
-    print(f'{name}: {os.path.getsize(p)/1e6:.2f} MB')
-
-
-def raw(name):
-    return os.path.join(RAW, name)
-
-
-# 1. flights (OpenSky)
-o = json.load(open(raw('opensky.json')))
-rows = []
-for s in o['states']:
-    lon, lat, on_ground = s[5], s[6], s[8]
-    if lon is None or lat is None or on_ground:
-        continue
-    alt = s[13] if s[13] is not None else s[7]
-    rows.append([r(lon, 4), r(lat, 4), r(alt, 0), r(s[10], 1), r(s[9], 1),
-                 (s[1] or '').strip(), s[2]])
-dump('flights.json', {'t': o['time'], 'cols': ['lon', 'lat', 'alt_m', 'track_deg', 'vel_ms', 'callsign', 'country'], 'rows': rows})
-meta['flights'] = len(rows)
-
-# 2. military (adsb.lol /v2/mil, unioned with adsb.fi /v2/mil, dedup by hex; adsb.lol wins)
-FT, KT = 0.3048, 0.514444
-seen, rows, tmax = set(), [], 0
-for fname in ['mil.json', 'mil_adsbfi.json']:
-    if not os.path.exists(raw(fname)):
-        continue
-    d = json.load(open(raw(fname)))
-    tmax = max(tmax, int((d.get('now') or 0) / (1000 if (d.get('now') or 0) > 1e11 else 1)))
-    for a in d.get('ac') or d.get('aircraft') or []:
-        lat, lon = a.get('lat'), a.get('lon')
-        if lat is None or lon is None or a['hex'] in seen:
-            continue
-        alt = a.get('alt_geom', a.get('alt_baro'))
-        if a.get('alt_baro') == 'ground' or alt == 'ground':
-            continue  # airborne only
-        seen.add(a['hex'])
-        track = a.get('track', a.get('true_heading'))
-        gs = a.get('gs')
-        rows.append([r(lon, 4), r(lat, 4), r(alt * FT, 0) if isinstance(alt, (int, float)) else None,
-                     r(track, 1), r(gs * KT, 1) if gs is not None else None,
-                     (a.get('flight') or '').strip(), None, a.get('t')])
-dump('military.json', {'t': tmax, 'cols': ['lon', 'lat', 'alt_m', 'track_deg', 'vel_ms', 'callsign', 'country', 'type'], 'rows': rows,
-                       'note': 'country not provided by adsb.lol/adsb.fi feeds (null)'})
-meta['military'] = len(rows)
-
-# 4. quakes
-q = json.load(open(raw('quakes.geojson')))
-rows = []
-for f in q['features']:
-    c, p = f['geometry']['coordinates'], f['properties']
-    if p.get('mag') is None:
-        continue
-    rows.append([r(c[0], 3), r(c[1], 3), r(c[2], 1), r(p['mag'], 2), p['time'], p.get('place') or ''])
-rows.sort(key=lambda x: x[4])
-dump('quakes.json', {'t': q['metadata']['generated'], 'cols': ['lon', 'lat', 'depth_km', 'mag', 'time_ms', 'place'], 'rows': rows})
-meta['quakes'] = len(rows)
-
-# 5. fires (FIRMS 24h global: SNPP VIIRS, NOAA-20 VIIRS, MODIS)
-rows, per = [], {}
-for fname, bcol, tag in [('viirs_snpp.csv', 'bright_ti4', 'VIIRS_SNPP'), ('viirs_n20.csv', 'bright_ti4', 'VIIRS_NOAA20'), ('modis.csv', 'brightness', 'MODIS')]:
-    if not os.path.exists(raw(fname)):
-        continue
-    n = 0
-    with open(raw(fname), newline='') as fh:
-        for row in csv.DictReader(fh):
-            try:
-                rows.append([r(row['longitude'], 3), r(row['latitude'], 3), r(row['frp'], 1), r(row[bcol], 1)])
-                n += 1
-            except (KeyError, ValueError):
-                pass
-    per[tag] = n
-dump('fires.json', {'cols': ['lon', 'lat', 'frp', 'brightness'], 'sources': per, 'rows': rows})
-meta['fires'] = len(rows)
-meta['fires_per'] = per
-
-# 8. cables
-c = json.load(open(raw('cables.json')))
-lines = []
-for f in c['features']:
-    g = f['geometry']
-    parts = g['coordinates'] if g['type'] == 'MultiLineString' else [g['coordinates']]
-    for part in parts:
-        pl = [[r(x, 2), r(y, 2)] for x, y in (pt[:2] for pt in part)]
-        if len(pl) >= 2:
-            lines.append(pl)
-dump('cables.json', {'cables': lines})
-meta['cables'] = (len(c['features']), len(lines))
-
-
-# 9. coastline + borders
-def lines_of(geo):
-    out = []
-    for f in geo['features']:
-        g = f['geometry']
-        if g is None:
-            continue
-        t, co = g['type'], g['coordinates']
-        if t == 'LineString':
-            parts = [co]
-        elif t == 'MultiLineString':
-            parts = co
-        elif t == 'Polygon':
-            parts = co
-        elif t == 'MultiPolygon':
-            parts = [ring for poly in co for ring in poly]
-        else:
-            parts = []
-        for part in parts:
-            pl, last = [], None
-            for x, y in (pt[:2] for pt in part):
-                pt = [r(x, 2), r(y, 2)]
-                if pt != last:
-                    pl.append(pt)
-                last = pt
-            if len(pl) >= 2:
-                out.append(pl)
-    return out
-
-
-coast = lines_of(json.load(open(raw('coast50.geojson'))))
-dump('coastline.json', {'lines': coast})
-borders = lines_of(json.load(open(raw('countries110.geojson'))))
-dump('borders.json', {'lines': borders})
-meta['coast'] = len(coast)
-meta['borders'] = len(borders)
-
-# 10. cities
-pp = json.load(open(raw('places.geojson')))
-rows = []
-for f in pp['features']:
-    p = f['properties']
-    lon, lat = f['geometry']['coordinates'][:2]
-    rows.append([r(lon, 3), r(lat, 3), int(p.get('pop_max') or 0), p.get('name') or p.get('nameascii'), p.get('adm0name') or p.get('sov0name')])
-rows.sort(key=lambda x: -x[2])
-rows = rows[:3000]
-dump('cities.json', {'cols': ['lon', 'lat', 'pop_max', 'name', 'country'], 'rows': rows})
-meta['cities'] = len(rows)
-
-# 11. airports (OurAirports large + medium)
-rows = []
-with open(raw('airports.csv'), newline='', encoding='utf-8') as fh:
-    for row in csv.DictReader(fh):
-        if row['type'] not in ('large_airport', 'medium_airport'):
-            continue
-        rows.append([r(row['longitude_deg'], 4), r(row['latitude_deg'], 4), row['iata_code'] or row['ident'], row['name'],
-                     'L' if row['type'] == 'large_airport' else 'M'])
-rows.sort(key=lambda x: x[4])
-dump('airports.json', {'cols': ['lon', 'lat', 'iata', 'name', 'size'], 'rows': rows})
-meta['airports'] = (len(rows), sum(1 for x in rows if x[4] == 'L'))
-
-json.dump(meta, open(os.path.join(RAW, 'meta_basic.json'), 'w'))
-print(meta)

intro-sequence/tools/fetch/process_tle.py

@@ -1,31 +0,0 @@
-#!/usr/bin/env python3
-"""tle.txt (3-line TLEs, CelesTrak GROUP=active) + tle_groups.json (NORAD ids per group).
-Usage: python3 -I process_tle.py <raw_dir> <out_dir>"""
-import json, os, sys
-RAW, OUT = sys.argv[1], sys.argv[2]
-def parse(path):
-    L = [l.rstrip() for l in open(path) if l.strip()]
-    out = []
-    i = 0
-    while i + 2 < len(L) + 0 and i + 2 <= len(L) - 1:
-        if L[i+1].startswith('1 ') and L[i+2].startswith('2 '):
-            name = L[i][2:] if L[i].startswith('0 ') else L[i]
-            out.append((name.strip(), L[i+1], L[i+2])); i += 3
-        else:
-            i += 1
-    return out
-act = parse(os.path.join(RAW, 'tle_active3.txt'))
-with open(os.path.join(OUT, 'tle.txt'), 'w') as f:
-    for n, a, b in act:
-        f.write(f'{n}\n{a}\n{b}\n')
-groups, notable = {}, {}
-for g in ['stations', 'starlink', 'gps-ops', 'geo', 'weather']:
-    p = os.path.join(RAW, f'tle_{g}.txt')
-    if os.path.exists(p) and os.path.getsize(p) > 0:
-        sats = parse(p)
-        groups[g] = sorted(int(a[2:7]) for _, a, _ in sats)
-        for n, _, _ in sats[: (40 if g != 'starlink' else 3)]:
-            notable[n] = g
-epochs = sorted(a[18:32] for _, a, _ in act)
-json.dump({'groups_norad': groups, 'notable': notable}, open(os.path.join(OUT, 'tle_groups.json'), 'w'), separators=(',', ':'))
-print(len(act), {k: len(v) for k, v in groups.items()}, 'epoch range', epochs[0], epochs[-1])

intro-sequence/tools/fetch/process_vessels.py

@@ -1,38 +0,0 @@
-#!/usr/bin/env python3
-"""vessels.json from keyless AIS: Fintraffic Digitraffic (Finland/Baltic) + Kystverket Kystdatahuset realtime (Norway).
-Usage: python3 -I process_vessels.py <raw_dir> <out_dir>"""
-import json, os, sys, time
-RAW, OUT = sys.argv[1], sys.argv[2]
-rows, src = {}, {}
-# Norway (Kystverket) - LineString trails, last coordinate = latest position
-k = json.load(open(os.path.join(RAW, 'kystverket_ais.json')))
-for f in k['features']:
-    c, p = f['geometry']['coordinates'], f['properties']
-    if not c:
-        continue
-    lon, lat = c[-1]
-    cog = p.get('cog')
-    cog = None if cog is None or cog >= 360 else round(cog, 1)
-    sog = p.get('speed')
-    sog = None if sog is None or sog >= 102.3 else round(sog, 1)
-    rows[p['mmsi']] = [round(lon, 4), round(lat, 4), sog, cog, p['mmsi'], (p.get('ship_name') or '').strip() or None]
-    src[p['mmsi']] = 'NO'
-# Finland / Baltic (Digitraffic)
-names = {v['mmsi']: (v.get('name') or '').strip() or None for v in json.load(open(os.path.join(RAW, 'digitraffic_vessels.json')))}
-d = json.load(open(os.path.join(RAW, 'dt_ais_from.json')))
-for f in d['features']:
-    p = f['properties']
-    lon, lat = f['geometry']['coordinates'][:2]
-    if p['mmsi'] in rows:
-        continue
-    cog = p.get('cog'); cog = None if cog is None or cog >= 360 else round(cog, 1)
-    sog = p.get('sog'); sog = None if sog is None or sog >= 102.3 else round(sog, 1)
-    rows[p['mmsi']] = [round(lon, 4), round(lat, 4), sog, cog, p['mmsi'], names.get(p['mmsi'])]
-    src[p['mmsi']] = 'FI'
-out = list(rows.values())
-json.dump({'t': int(time.time()), 'cols': ['lon', 'lat', 'sog_kn', 'cog_deg', 'mmsi', 'name'],
-           'coverage': 'Norwegian coast/EEZ (Kystverket) + Finnish waters & Baltic Sea (Fintraffic Digitraffic); not global',
-           'counts': {'kystverket_norway': sum(1 for v in src.values() if v == 'NO'), 'digitraffic_finland_baltic': sum(1 for v in src.values() if v == 'FI')},
-           'rows': out}, open(os.path.join(OUT, 'vessels.json'), 'w'), separators=(',', ':'), ensure_ascii=False)
-lons = [r[0] for r in out]; lats = [r[1] for r in out]
-print(len(out), 'bbox', min(lons), max(lons), min(lats), max(lats))

intro-sequence/tools/finalize-v2.sh

@@ -1,23 +0,0 @@
-#!/usr/bin/env bash
-# v2: sound design only (made to sit under a music track). Normalise the SFX
-# mix to -16 LUFS, keep it as a stem, and mux share + master cuts.
-set -euo pipefail
-cd "$(dirname "$0")/.."
-node tools/export-cues.mjs
-python3 audio/sfx.py
-stats=$(ffmpeg -hide_banner -i audio/sfx.wav -af loudnorm=I=-16:TP=-1.5:LRA=14:print_format=json -f null - 2>&1 | sed -n '/^{/,/^}/p')
-g() { echo "$stats" | python3 -c "import json,sys;print(json.load(sys.stdin)['$1'])"; }
-ffmpeg -y -loglevel error -i audio/sfx.wav -af "loudnorm=I=-16:TP=-1.5:LRA=14:measured_I=$(g input_i):measured_TP=$(g input_tp):measured_LRA=$(g input_lra):measured_thresh=$(g input_thresh):linear=true,aresample=48000" -c:a pcm_s24le audio/sfx_norm.wav
-mkdir -p out/final_v2
-cp audio/sfx_norm.wav out/final_v2/GodsEyeView_FirstLight_v2_SFX_stem.wav
-for tag in 16x9 9x16; do
-  v=out/v2_video_$tag.mp4
-  [ -s "$v" ] || { echo "missing $v"; continue; }
-  ffmpeg -y -loglevel error -i $v -i audio/sfx_norm.wav -map 0:v -map 1:a -c:v copy -c:a aac -b:a 320k -shortest -movflags +faststart out/final_v2/GodsEyeView_FirstLight_v2_${tag}_master.mp4
-  ffmpeg -y -loglevel error -i $v -c:v libx264 -preset slow -b:v 16M -maxrate 24M -bufsize 32M -pass 1 -passlogfile out/final_v2/p_$tag -an -f null /dev/null
-  ffmpeg -y -loglevel error -i $v -i audio/sfx_norm.wav -map 0:v -map 1:a -c:v libx264 -preset slow -b:v 16M -maxrate 24M -bufsize 32M -pass 2 -passlogfile out/final_v2/p_$tag \
-    -pix_fmt yuv420p -colorspace bt709 -color_primaries bt709 -color_trc bt709 -c:a aac -b:a 256k -shortest -movflags +faststart out/final_v2/GodsEyeView_FirstLight_v2_${tag}.mp4
-  rm -f out/final_v2/p_$tag*
-  echo "finalized $tag"
-done
-ls -la out/final_v2

intro-sequence/tools/finalize.sh

@@ -1,26 +0,0 @@
-#!/usr/bin/env bash
-# Loudness-normalise the score (-14 LUFS, -1 dBTP) and mux it into both cuts.
-#   tools/finalize.sh            (after tools/render-all.sh has produced out/video_*.mp4)
-set -euo pipefail
-cd "$(dirname "$0")/.."
-python3 audio/score.py
-# two-pass loudnorm
-stats=$(ffmpeg -hide_banner -i audio/score.wav -af loudnorm=I=-14:TP=-1:LRA=11:print_format=json -f null - 2>&1 | sed -n '/^{/,/^}/p')
-mi=$(echo "$stats" | python3 -c "import json,sys;d=json.load(sys.stdin);print(d['input_i'])")
-mtp=$(echo "$stats" | python3 -c "import json,sys;d=json.load(sys.stdin);print(d['input_tp'])")
-mlra=$(echo "$stats" | python3 -c "import json,sys;d=json.load(sys.stdin);print(d['input_lra'])")
-mth=$(echo "$stats" | python3 -c "import json,sys;d=json.load(sys.stdin);print(d['input_thresh'])")
-ffmpeg -y -loglevel error -i audio/score.wav -af "loudnorm=I=-14:TP=-1:LRA=11:measured_I=$mi:measured_TP=$mtp:measured_LRA=$mlra:measured_thresh=$mth:linear=true,aresample=48000" -c:a pcm_s24le audio/score_norm.wav
-mkdir -p out/final
-for tag in 16x9 9x16; do
-  [ -s out/video_$tag.mp4 ] || { echo "missing out/video_$tag.mp4"; continue; }
-  # master: the CRF 14 picture untouched + 320k AAC
-  ffmpeg -y -loglevel error -i out/video_$tag.mp4 -i audio/score_norm.wav -map 0:v -map 1:a -c:v copy -c:a aac -b:a 320k -ar 48000 -shortest -movflags +faststart \
-    -metadata title="God's Eye View — First Light ($tag)" out/final/GodsEyeView_FirstLight_${tag}_master.mp4
-  # delivery: lighter encode for posting/sharing
-  ffmpeg -y -loglevel error -i out/video_$tag.mp4 -i audio/score_norm.wav -map 0:v -map 1:a -c:v libx264 -preset slow -crf 19 -tune grain -pix_fmt yuv420p \
-    -colorspace bt709 -color_primaries bt709 -color_trc bt709 -c:a aac -b:a 256k -ar 48000 -shortest -movflags +faststart \
-    -metadata title="God's Eye View — First Light ($tag)" out/final/GodsEyeView_FirstLight_${tag}.mp4
-  echo "finalized $tag"
-done
-ls -la out/final

intro-sequence/tools/flurry/build.py

@@ -1,175 +0,0 @@
-"""Build the flurry montage captures.
-
-  python3 select_cities.py   # -> city_candidates.json (primary + backup per region)
-  python3 build.py           # -> imagery/flurry/fx_###.jpg, index.json, tools/flurry/sheet.jpg
-
-Each capture: Esri World Imagery, 3x3 tiles around the point, centred 512x512
-crop, JPEG q86. Placeholder / low-variance captures are rejected automatically
-(tiles.quality_ok); captures that passed the metrics but looked wrong on the
-review sheets (forest, farmland, haze) are listed in VISUAL_REJECT. Rejected
-items are replaced by the next backup of the same region (cities) or by the
-next backup landmark.
-"""
-import glob
-import json
-import os
-import sys
-from concurrent.futures import ThreadPoolExecutor
-
-from PIL import Image
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from landmarks import LANDMARKS  # noqa: E402
-from tiles import HERE, MAX_WORKERS, OUT, capture, quality_ok  # noqa: E402
-
-N_CITIES = 170
-N_LANDMARKS = 90
-
-# Natural Earth points that landed on a park/water/cemetery: moved to the dense centre.
-CITY_OVERRIDES = {
-    "Lagos": (6.4541, 3.3947),          # Lagos Island (was open lagoon)
-    "Cairns": (-16.9230, 145.7740),     # CBD (was mangrove mudflat)
-    "Calgary": (51.0460, -114.0650),    # downtown (was cemetery)
-    "Dubai": (25.0805, 55.1403),        # Dubai Marina (was construction lot)
-    "Perth": (-31.9530, 115.8575),      # CBD (was Kings Park bush)
-    "Dhaka": (23.7330, 90.4172),        # Motijheel (was hazy open ground)
-    "Delhi": (28.6315, 77.2167),        # Connaught Place
-    "Montréal": (45.5017, -73.5673),    # downtown (was Mount Royal park)
-    "Busan": (35.1000, 129.0350),       # Nampo / harbour (was forested hill)
-    "Jeddah": (21.4858, 39.1925),       # Al-Balad old town (was empty lot)
-    "Tokyo": (35.6717, 139.7650),       # Ginza (was Imperial Palace woods)
-}
-VISUAL_REJECT = {
-    "Venice": "blurry low-res imagery",
-    "Conakry": "heavy haze",
-    "Maracaibo": "farmland / scrub",
-    "Barquisimeto": "dry riverbed, no city",
-    "Natal": "solid forest canopy",
-    "João Pessoa": "forest canopy",
-    "Mbuji-Mayi": "forest/scrub",
-    "Huambo": "scrub, sparse",
-    "Port Harcourt": "haze",
-    "Qaraghandy": "dark featureless rail yard",
-    "Herat": "low-res blur",
-    "Chengdu": "smog haze",
-    "Xian": "washed-out industrial lot",
-    "Kaohsiung": "forested hill",
-    "Sapporo": "university farm fields",
-    "Isfahan": "low contrast blur",
-    "Stuttgart": "hazy woodland",
-    "Townsville": "airport apron, not city",
-}
-LANDMARK_BACKUPS = [
-    "Glen Canyon Dam", "Grand Coulee Dam", "Mount St. Helens", "Groom Lake", "Diavik Diamond Mine",
-    "Syncrude Mildred Lake oil sands", "Centre-pivot fields, Kansas", "Indianapolis Motor Speedway",
-    "Brooklyn Bridge", "Panama Canal, Miraflores Locks", "Escondida Mine", "ALMA Observatory",
-    "Meeting of the Waters, Manaus", "Brasilia, National Congress", "PS10 / PS20 Solar Towers", "Tower Bridge",
-    "Port of Tema", "Akosombo Dam", "Okavango Delta", "FNB Stadium, Soweto", "East Oweinat pivots",
-    "Kilimanjaro, Kibo crater", "Ras Laffan Industrial City", "Dubai International Airport", "Bagan temples",
-    "Jiuquan Launch Centre", "Mount Bromo", "Vostochny Cosmodrome", "Pine Gap", "Tanegashima Space Center",
-    "Teide", "Faa'a International Airport", "Hartsfield-Jackson Atlanta Airport", "Niagara Horseshoe Falls",
-    "Iguazu Falls, Devil's Throat", "Vandenberg SLC-4E", "Paranal Observatory", "Cerro Dominador Solar",
-    "Gibraltar Airport runway", "Erg Chebbi dunes", "Millau Viaduct", "Garzweiler Lignite Mine", "Inga Dams",
-    "Grand Ethiopian Renaissance Dam", "Ras Tanura refinery", "Udachnaya Pipe", "Busan New Port",
-    "Mount Taranaki", "Beijing National Stadium", "Port of Hamburg, Burchardkai", "Port of Santos",
-    "Jebel Ali Port", "Mont-Saint-Michel", "Angkor Wat", "Mount Vesuvius", "Horseshoe Bend",
-    "Benban Solar Park", "Borobudur", "Bhadla Solar Park", "Kariba Dam", "Wake Island Airfield",
-    "Diamond Head", "Port Hedland salt ponds",
-]
-
-
-def evaluate(cands):
-    def job(c):
-        try:
-            img, info = capture(c["lat"], c["lon"], c["zoom"])
-            ok, why = quality_ok(info)
-        except Exception as e:  # network failure counts as a reject
-            img, info, ok, why = None, {}, False, f"fetch error: {e}"
-        if ok and c["name"] in VISUAL_REJECT and c.get("kind") == "city":
-            ok, why = False, "visual: " + VISUAL_REJECT[c["name"]]
-        return img, ok, why
-
-    with ThreadPoolExecutor(MAX_WORKERS) as ex:
-        return list(ex.map(job, cands))
-
-
-def pick(cands, results, quota_by_group):
-    """Primaries first in order; failures replaced by the group's backups in order."""
-    chosen, rejects = [], []
-    for g, quota in quota_by_group.items():
-        items = [(c, r) for c, r in zip(cands, results) if c["group"] == g]
-        prim = [x for x in items if x[0]["rank"] == "primary"]
-        back = [x for x in items if x[0]["rank"] == "backup"]
-        got = []
-        for c, r in prim + back:
-            if len(got) >= quota:
-                break
-            if r[1]:
-                got.append((c, r[0]))
-            elif c["rank"] == "primary":
-                rejects.append((c, r[2]))
-        if len(got) < quota:
-            print(f"!! group {g}: only {len(got)}/{quota}")
-        chosen += got
-    return chosen, rejects
-
-
-def main():
-    cities = json.load(open(os.path.join(HERE, "city_candidates.json")))
-    for c in cities:
-        c["kind"], c["group"] = "city", "c:" + c["region"]
-        if c["name"] in CITY_OVERRIDES:
-            c["lat"], c["lon"] = CITY_OVERRIDES[c["name"]]
-    cquota = {}
-    for c in cities:
-        if c["rank"] == "primary":
-            cquota[c["group"]] = cquota.get(c["group"], 0) + 1
-    assert sum(cquota.values()) == N_CITIES, cquota
-
-    lms = [dict(name=n, country=co, lat=la, lon=lo, zoom=z, kind="landmark", group="landmark",
-                rank="backup" if n in LANDMARK_BACKUPS else "primary") for n, co, la, lo, z in LANDMARKS]
-    lms.sort(key=lambda c: c["rank"] != "primary")  # stable: primaries first
-    nprim = sum(c["rank"] == "primary" for c in lms)
-    assert nprim == N_LANDMARKS, nprim
-
-    allc = cities + lms
-    print(f"evaluating {len(allc)} candidates ...", flush=True)
-    res = evaluate(allc)
-    quotas = dict(cquota)
-    quotas["landmark"] = N_LANDMARKS
-    chosen, rejects = pick(allc, res, quotas)
-
-    chosen.sort(key=lambda x: x[0]["lon"])
-    os.makedirs(OUT, exist_ok=True)
-    for f in glob.glob(os.path.join(OUT, "fx_*.jpg")):
-        os.remove(f)
-    index = []
-    for i, (c, img) in enumerate(chosen):
-        fn = f"fx_{i:03d}.jpg"
-        img.save(os.path.join(OUT, fn), quality=86, optimize=True)
-        index.append({"file": fn, "name": c["name"], "country": c["country"], "lat": round(c["lat"], 5),
-                      "lon": round(c["lon"], 5), "zoom": c["zoom"], "kind": c["kind"]})
-    with open(os.path.join(OUT, "index.json"), "w") as f:
-        json.dump(index, f, indent=1, ensure_ascii=False)
-
-    # contact sheet: 16 x 17 grid of 96px thumbs, west->east reading order
-    cols, cell = 16, 96
-    rows = (len(chosen) + cols - 1) // cols
-    sheet = Image.new("RGB", (cols * cell, rows * cell), (10, 10, 10))
-    for i, (c, img) in enumerate(chosen):
-        sheet.paste(img.resize((cell, cell), Image.LANCZOS), ((i % cols) * cell, (i // cols) * cell))
-    sheet.save(os.path.join(HERE, "sheet.jpg"), quality=88)
-
-    from collections import Counter
-    print(f"wrote {len(index)} captures: {Counter(x['kind'] for x in index)}")
-    print("rejected primaries (replaced by backups):")
-    for c, why in rejects:
-        print(f"  - {c['name']} ({c['country']}): {why}")
-    bands = Counter(int((x["lon"] + 180) // 30) for x in index)
-    print("30-degree longitude bands W->E:", [bands.get(i, 0) for i in range(12)])
-    json.dump([{"name": c["name"], "country": c["country"], "reason": why} for c, why in rejects],
-              open(os.path.join(HERE, "rejects.json"), "w"), indent=1, ensure_ascii=False)
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/flurry/landmarks.py

@@ -1,205 +0,0 @@
-"""Hand-picked non-city landmarks for the flurry montage.
-
-(name, country, lat, lon, zoom). zoom 16 for compact features, 15 for very large
-ones (deltas, glaciers, big pits, pivot fields). Coordinates are verified
-visually via tools/flurry/review.py sheets; entries that came back as featureless
-terrain were corrected or dropped (see REJECTED at the bottom).
-"""
-
-LANDMARKS = [
-    # --- ports / container terminals ---
-    ("Port of Rotterdam, Maasvlakte", "Netherlands", 51.9575, 4.0500, 16),
-    ("Port of Singapore, Pasir Panjang", "Singapore", 1.2735, 103.7750, 16),
-    ("Yangshan Deep-Water Port", "China", 30.6280, 122.0650, 16),
-    ("Port of Los Angeles, Pier 400", "United States of America", 33.7350, -118.2550, 16),
-    ("Jebel Ali Port", "United Arab Emirates", 25.0100, 55.0600, 16),
-    ("Port of Santos", "Brazil", -23.9700, -46.3000, 16),
-    ("Port of Hamburg, Burchardkai", "Germany", 53.5350, 9.9200, 16),
-    ("Port Hedland salt ponds", "Australia", -20.3450, 118.6550, 15),
-    ("Busan New Port", "South Korea", 35.0800, 128.8000, 16),
-    ("Tanger Med Port", "Morocco", 35.8850, -5.5000, 16),
-    ("Port of Tema", "Ghana", 5.6330, 0.0100, 16),
-    # --- airports ---
-    ("Hartsfield-Jackson Atlanta Airport", "United States of America", 33.6407, -84.4277, 16),
-    ("Dubai International Airport", "United Arab Emirates", 25.2528, 55.3644, 16),
-    ("Hong Kong International Airport", "Hong Kong S.A.R.", 22.3080, 113.9185, 16),
-    ("Denver International Airport", "United States of America", 39.8494, -104.6738, 16),
-    ("Kansai International Airport", "Japan", 34.4320, 135.2304, 16),
-    ("Beijing Daxing Airport", "China", 39.5098, 116.4105, 16),
-    ("Davis-Monthan Aircraft Boneyard", "United States of America", 32.1500, -110.8300, 16),
-    ("Princess Juliana Airport", "Sint Maarten", 18.0410, -63.1089, 16),
-    ("Gibraltar Airport runway", "Gibraltar", 36.1512, -5.3497, 16),
-    ("Faa'a International Airport", "French Polynesia", -17.5537, -149.6067, 16),
-    ("Funafuti Airfield", "Tuvalu", -8.5250, 179.1960, 16),
-    ("Midway Atoll, Sand Island", "United States of America", 28.2100, -177.3800, 16),
-    ("Wake Island Airfield", "United States of America", 19.2820, 166.6470, 16),
-    # --- dams ---
-    ("Hoover Dam", "United States of America", 36.0160, -114.7377, 16),
-    ("Three Gorges Dam", "China", 30.8233, 111.0036, 16),
-    ("Itaipu Dam", "Brazil", -25.4085, -54.5888, 16),
-    ("Grand Coulee Dam", "United States of America", 47.9560, -118.9817, 16),
-    ("Kariba Dam", "Zimbabwe", -16.5222, 28.7614, 16),
-    ("Aswan High Dam", "Egypt", 23.9707, 32.8780, 16),
-    ("Grand Ethiopian Renaissance Dam", "Ethiopia", 11.2150, 35.0900, 16),
-    ("Glen Canyon Dam", "United States of America", 36.9375, -111.4844, 16),
-    ("Akosombo Dam", "Ghana", 6.2999, 0.0592, 16),
-    ("Inga Dams", "Congo (Kinshasa)", -5.5240, 13.6200, 16),
-    # --- open-pit mines ---
-    ("Bingham Canyon Mine", "United States of America", 40.5230, -112.1510, 15),
-    ("Chuquicamata Mine", "Chile", -22.2900, -68.9000, 15),
-    ("Mir Diamond Mine", "Russia", 62.5275, 113.9936, 15),
-    ("Escondida Mine", "Chile", -24.2700, -69.0700, 15),
-    ("Kalgoorlie Super Pit", "Australia", -30.7775, 121.5040, 15),
-    ("Udachnaya Pipe", "Russia", 66.4300, 112.3200, 15),
-    ("Garzweiler Lignite Mine", "Germany", 51.0600, 6.4800, 15),
-    ("Kimberley Big Hole", "South Africa", -28.7383, 24.7585, 16),
-    ("Diavik Diamond Mine", "Canada", 64.4960, -110.2700, 15),
-    ("Syncrude Mildred Lake oil sands", "Canada", 57.0400, -111.6000, 15),
-    # --- solar ---
-    ("Noor Ouarzazate Solar", "Morocco", 31.0498, -6.8686, 16),
-    ("Ivanpah Solar", "United States of America", 35.5525, -115.4680, 16),
-    ("Crescent Dunes Solar", "United States of America", 38.2386, -117.3636, 15),
-    ("Bhadla Solar Park", "India", 27.5400, 71.9100, 16),
-    ("Gemasolar", "Spain", 37.5606, -5.3317, 16),
-    ("PS10 / PS20 Solar Towers", "Spain", 37.4425, -6.2550, 16),
-    ("Benban Solar Park", "Egypt", 24.4500, 32.7300, 16),
-    ("Cerro Dominador Solar", "Chile", -22.7700, -69.4800, 16),
-    # --- centre-pivot irrigation ---
-    ("Centre-pivot fields, Kansas", "United States of America", 37.9000, -100.9000, 15),
-    ("Centre-pivot fields, Wadi As-Sirhan", "Saudi Arabia", 30.2000, 38.0800, 15),
-    ("Kufra agricultural project", "Libya", 24.1400, 23.3500, 15),
-    ("East Oweinat pivots", "Egypt", 22.6000, 28.6000, 15),
-    ("Centre-pivot fields, Nebraska", "United States of America", 41.1000, -101.7000, 15),
-    # --- river deltas / water ---
-    ("Lena Delta", "Russia", 72.8000, 126.5000, 15),
-    ("Okavango Delta", "Botswana", -19.3000, 22.9000, 15),
-    ("Betsiboka Estuary", "Madagascar", -15.7500, 46.3500, 15),
-    ("Meeting of the Waters, Manaus", "Brazil", -3.1370, -59.9100, 15),
-    # --- salt / evaporation ---
-    ("Salar de Atacama lithium ponds", "Chile", -23.5280, -68.3680, 16),
-    ("Dead Sea evaporation ponds", "Israel", 31.1000, 35.4000, 15),
-    ("San Francisco Bay salt ponds", "United States of America", 37.5000, -122.0500, 15),
-    ("Lake Retba (Pink Lake)", "Senegal", 14.8400, -17.2300, 15),
-    ("Hutt Lagoon", "Australia", -28.1700, 114.2500, 15),
-    # --- glaciers / ice ---
-    ("Perito Moreno Glacier", "Argentina", -50.4800, -73.0500, 15),
-    ("Aletsch Glacier, Konkordiaplatz", "Switzerland", 46.5000, 8.0300, 15),
-    ("Hubbard Glacier", "United States of America", 60.0200, -139.5000, 15),
-    # Antarctica: Esri has only Landsat-class imagery here (z14+ is placeholder),
-    # so these use z11-12 where the source pixels are native rather than upsampled.
-    ("Taylor Valley, Canada Glacier", "Antarctica", -77.6300, 162.9500, 12),
-    ("McMurdo Dry Valleys, Wright Valley", "Antarctica", -77.5700, 161.8500, 11),
-    ("Deception Island caldera", "Antarctica", -62.9600, -60.6300, 12),
-    ("Mount Everest", "Nepal", 27.9881, 86.9250, 15),
-    # --- volcanoes / craters ---
-    ("Mount Bromo", "Indonesia", -7.9420, 112.9530, 15),
-    ("Erta Ale", "Ethiopia", 13.6065, 40.6655, 16),
-    ("Kilauea, Halemaumau", "United States of America", 19.4060, -155.2830, 15),
-    ("Mount Fuji summit crater", "Japan", 35.3628, 138.7307, 16),
-    ("Nyiragongo", "Congo (Kinshasa)", -1.5200, 29.2500, 16),
-    ("Meteor Crater", "United States of America", 35.0275, -111.0225, 15),
-    ("Mount St. Helens", "United States of America", 46.2000, -122.1900, 15),
-    ("Kawah Ijen", "Indonesia", -8.0580, 114.2420, 16),
-    ("Teide", "Spain", 28.2725, -16.6425, 16),
-    ("Mount Vesuvius", "Italy", 40.8216, 14.4263, 16),
-    ("Rano Kau, Easter Island", "Chile", -27.1860, -109.4350, 15),
-    ("Diamond Head", "United States of America", 21.2620, -157.8050, 15),
-    ("Darvaza Gas Crater", "Turkmenistan", 40.2525, 58.4394, 16),
-    ("Kilimanjaro, Kibo crater", "Tanzania", -3.0758, 37.3533, 15),
-    ("Mount Taranaki", "New Zealand", -39.2968, 174.0634, 15),
-    ("Whakaari / White Island", "New Zealand", -37.5200, 177.1800, 15),
-    ("Dallol", "Ethiopia", 14.2400, 40.3000, 16),
-    # --- stadiums / venues ---
-    ("Maracana Stadium", "Brazil", -22.9122, -43.2302, 16),
-    ("Rungrado May Day Stadium", "North Korea", 39.0497, 125.7756, 16),
-    ("Camp Nou", "Spain", 41.3809, 2.1228, 16),
-    ("Beijing National Stadium", "China", 39.9925, 116.3910, 16),
-    ("Melbourne Cricket Ground", "Australia", -37.8200, 144.9834, 16),
-    ("Indianapolis Motor Speedway", "United States of America", 39.7950, -86.2350, 15),
-    ("Estadio Azteca", "Mexico", 19.3029, -99.1505, 16),
-    ("FNB Stadium, Soweto", "South Africa", -26.2348, 27.9825, 16),
-    # --- bridges / canals ---
-    ("Golden Gate Bridge", "United States of America", 37.8100, -122.4770, 16),
-    ("Sydney Harbour Bridge & Opera House", "Australia", -33.8550, 151.2120, 16),
-    ("Tower Bridge", "United Kingdom", 51.5055, -0.0754, 16),
-    ("Oresund Bridge, Peberholm", "Denmark", 55.5900, 12.7740, 16),
-    ("Millau Viaduct", "France", 44.0794, 3.0225, 16),
-    ("Brooklyn Bridge", "United States of America", 40.7061, -73.9969, 16),
-    ("Panama Canal, Miraflores Locks", "Panama", 8.9970, -79.5915, 16),
-    ("Panama Canal, Agua Clara Locks", "Panama", 9.2720, -79.9180, 16),
-    # --- launch sites ---
-    ("Kennedy Space Center LC-39A", "United States of America", 28.6083, -80.6041, 16),
-    ("Baikonur, Gagarin's Start", "Kazakhstan", 45.9203, 63.3422, 16),
-    ("Vandenberg SLC-4E", "United States of America", 34.6320, -120.6110, 16),
-    ("Starbase, Boca Chica", "United States of America", 25.9972, -97.1566, 16),
-    ("Wenchang Launch Site", "China", 19.6145, 110.9510, 16),
-    ("Jiuquan Launch Centre", "China", 40.9580, 100.2910, 16),
-    ("Tanegashima Space Center", "Japan", 30.4009, 130.9749, 16),
-    ("Vostochny Cosmodrome", "Russia", 51.8840, 128.3330, 16),
-    ("Rocket Lab LC-1, Mahia", "New Zealand", -39.2615, 177.8649, 16),
-    # --- energy / industry ---
-    ("Permian Basin well pads", "United States of America", 32.2100, -103.8300, 15),
-    ("Ras Tanura refinery", "Saudi Arabia", 26.6400, 50.1600, 16),
-    ("Jamnagar Refinery", "India", 22.3500, 69.8500, 16),
-    ("Ras Laffan Industrial City", "Qatar", 25.9100, 51.5500, 16),
-    ("Yamal LNG, Sabetta", "Russia", 71.2700, 72.0700, 16),
-    ("Chernobyl Nuclear Power Plant", "Ukraine", 51.3890, 30.0990, 16),
-    # --- monuments / sites ---
-    ("Jiayuguan Pass, Great Wall", "China", 39.8016, 98.2133, 16),
-    ("Pyramids of Giza", "Egypt", 29.9792, 31.1342, 16),
-    ("Palm Jumeirah", "United Arab Emirates", 25.1124, 55.1390, 15),
-    ("Angkor Wat", "Cambodia", 13.4125, 103.8670, 16),
-    ("The Pentagon", "United States of America", 38.8719, -77.0563, 16),
-    ("Groom Lake", "United States of America", 37.2350, -115.8111, 15),
-    ("FAST Radio Telescope", "China", 25.6529, 106.8566, 16),
-    ("Very Large Array", "United States of America", 34.0784, -107.6184, 16),
-    ("Uluru", "Australia", -25.3444, 131.0369, 15),
-    ("Mont-Saint-Michel", "France", 48.6361, -1.5115, 16),
-    ("Grand Prismatic Spring", "United States of America", 44.5251, -110.8382, 16),
-    ("Masjid al-Haram, Mecca", "Saudi Arabia", 21.4225, 39.8262, 16),
-    ("Forbidden City", "China", 39.9155, 116.3910, 16),
-    ("Taj Mahal", "India", 27.1751, 78.0421, 16),
-    ("Greenhouses of Almeria", "Spain", 36.7500, -2.7200, 16),
-    ("Pine Gap", "Australia", -23.7990, 133.7370, 16),
-    ("ALMA Observatory", "Chile", -23.0229, -67.7552, 16),
-    ("Paranal Observatory", "Chile", -24.6275, -70.4044, 16),
-    ("Brasilia, National Congress", "Brazil", -15.7998, -47.8645, 16),
-    ("Iguazu Falls, Devil's Throat", "Argentina", -25.6950, -54.4367, 16),
-    ("Niagara Horseshoe Falls", "Canada", 43.0773, -79.0757, 16),
-    ("Victoria Falls", "Zambia", -17.9243, 25.8572, 16),
-    ("Horseshoe Bend", "United States of America", 36.8791, -111.5103, 16),
-    ("Sossusvlei dunes", "Namibia", -24.7300, 15.2900, 15),
-    ("Erg Chebbi dunes", "Morocco", 31.1500, -3.9800, 15),
-    ("Bora Bora", "French Polynesia", -16.4950, -151.7050, 15),
-    ("Borobudur", "Indonesia", -7.6079, 110.2038, 16),
-    ("Bagan temples", "Myanmar", 21.1700, 94.8600, 16),
-    ("Svalbard, Longyearbyen", "Norway", 78.2200, 15.6500, 16),
-    ("Edinburgh of the Seven Seas, Tristan da Cunha", "United Kingdom", -37.0670, -12.3100, 16),
-    ("Diego Garcia", "United Kingdom", -7.3100, 72.4100, 15),
-    ("Kwajalein Atoll", "Marshall Islands", 8.7200, 167.7300, 16),
-]
-
-REJECTED = {
-    'Pituffik Space Base': 'placeholder above z13; z13 too blurry',
-    'Ilulissat Icefjord': 'placeholder above z13; open water at z13',
-    'McMurdo Station': 'placeholder above z13; blurry ice at z13',
-    'Rothera Research Station': 'placeholder above z13; mostly sea',
-    'Mount Erebus crater': 'placeholder above z13; cloud-like blur',
-    'Port of Durban': "featureless/cloud/low-res/off-target at tested coords",
-    'Port of Mombasa': "featureless/cloud/low-res/off-target at tested coords",
-    'Sundarbans, Ganges Delta': "featureless/cloud/low-res/off-target at tested coords",
-    "Mississippi Bird's-Foot Delta": "featureless/cloud/low-res/off-target at tested coords",
-    'Volga Delta': "featureless/cloud/low-res/off-target at tested coords",
-    'Great Salt Lake causeway': "featureless/cloud/low-res/off-target at tested coords",
-    'Jokulsarlon Glacier Lagoon': "featureless/cloud/low-res/off-target at tested coords",
-    'Baltoro Glacier, Concordia': "featureless/cloud/low-res/off-target at tested coords",
-    'Cotopaxi': "featureless/cloud/low-res/off-target at tested coords",
-    'Guiana Space Centre ELA-3': "featureless/cloud/low-res/off-target at tested coords",
-    'Satish Dhawan Space Centre': "featureless/cloud/low-res/off-target at tested coords",
-    'Abqaiq processing plant': "featureless/cloud/low-res/off-target at tested coords",
-    'Prudhoe Bay oil field': "featureless/cloud/low-res/off-target at tested coords",
-    'Great Wall at Mutianyu': "featureless/cloud/low-res/off-target at tested coords",
-    'Machu Picchu': "featureless/cloud/low-res/off-target at tested coords",
-    'Baltra Island airport, Galapagos': "featureless/cloud/low-res/off-target at tested coords",
-    'Moynaq ship graveyard, Aral Sea': "featureless/cloud/low-res/off-target at tested coords",
-}

intro-sequence/tools/flurry/locate.py

@@ -1,78 +0,0 @@
-"""Locator sheets: a wider mosaic around a guess with a lat/lon grid, to find exact coords.
-
-usage: python3 locate.py out.jpg "name|lat|lon|z|ntiles" ...
-Each panel is ntiles x ntiles tiles at zoom z (resized to 640px) with grid
-lines every `step` degrees, labelled. Panels are stacked in a 2-column grid.
-"""
-import io
-import math
-import os
-import sys
-from concurrent.futures import ThreadPoolExecutor
-
-from PIL import Image, ImageDraw
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from tiles import fetch_tile, pixel_xy  # noqa: E402
-
-P = 640
-
-
-def panel(name, lat, lon, z, nt):
-    px, py = pixel_xy(lat, lon, z)
-    tx, ty = int(px // 256), int(py // 256)
-    h = nt // 2
-    coords = [(tx - h + i, ty - h + j) for j in range(nt) for i in range(nt)]
-    with ThreadPoolExecutor(8) as ex:
-        datas = list(ex.map(lambda c: fetch_tile(z, c[0], c[1]), coords))
-    m = Image.new("RGB", (nt * 256, nt * 256))
-    for (x, y), d in zip(coords, datas):
-        m.paste(Image.open(io.BytesIO(d)).convert("RGB"), ((x - tx + h) * 256, (y - ty + h) * 256))
-    ox, oy = (tx - h) * 256, (ty - h) * 256
-    s = P / (nt * 256)
-    m = m.resize((P, P), Image.LANCZOS)
-    d = ImageDraw.Draw(m)
-    n = 2 ** z * 256
-
-    def lon2x(lo):
-        return ((lo + 180) / 360 * n - ox) * s
-
-    def lat2y(la):
-        si = math.sin(math.radians(la))
-        return ((0.5 - math.log((1 + si) / (1 - si)) / (4 * math.pi)) * n - oy) * s
-
-    span = nt * 256 / n * 360
-    step = [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5][
-        min(range(9), key=lambda k: abs(span / [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5][k] - 6))]
-    lo0 = math.floor((lon - span) / step) * step
-    for k in range(40):
-        lo = lo0 + k * step
-        x = lon2x(lo)
-        if 0 <= x <= P:
-            d.line((x, 0, x, P), fill=(255, 255, 0), width=1)
-            d.text((x + 2, P - 12), f"{lo:.3f}", fill=(255, 255, 0))
-    la0 = math.floor((lat - span) / step) * step
-    for k in range(40):
-        la = la0 + k * step
-        y = lat2y(la)
-        if 0 <= y <= P:
-            d.line((0, y, P, y), fill=(0, 255, 255), width=1)
-            d.text((2, y + 1), f"{la:.3f}", fill=(0, 255, 255))
-    cx, cy = lon2x(lon), lat2y(lat)
-    d.ellipse((cx - 5, cy - 5, cx + 5, cy + 5), outline=(255, 0, 0), width=2)
-    d.rectangle((0, 0, P, 14), fill=(0, 0, 0))
-    d.text((3, 1), f"{name} z{z}", fill=(255, 255, 255))
-    return m
-
-
-if __name__ == "__main__":
-    out = sys.argv[1]
-    specs = [a.split("|") for a in sys.argv[2:]]
-    ps = [panel(s[0], float(s[1]), float(s[2]), int(s[3]), int(s[4])) for s in specs]
-    cols = 2 if len(ps) > 1 else 1
-    rows = (len(ps) + cols - 1) // cols
-    sheet = Image.new("RGB", (cols * P, rows * P))
-    for i, p in enumerate(ps):
-        sheet.paste(p, ((i % cols) * P, (i // cols) * P))
-    sheet.save(out, quality=85)
-    print(out)

intro-sequence/tools/flurry/rejects.json

@@ -1,32 +0,0 @@
-[
- {
-  "name": "Venice",
-  "country": "Italy",
-  "reason": "visual: blurry low-res imagery"
- },
- {
-  "name": "Chengdu",
-  "country": "China",
-  "reason": "visual: smog haze"
- },
- {
-  "name": "Xian",
-  "country": "China",
-  "reason": "visual: washed-out industrial lot"
- },
- {
-  "name": "Maracaibo",
-  "country": "Venezuela",
-  "reason": "visual: farmland / scrub"
- },
- {
-  "name": "Barquisimeto",
-  "country": "Venezuela",
-  "reason": "visual: dry riverbed, no city"
- },
- {
-  "name": "Conakry",
-  "country": "Guinea",
-  "reason": "visual: heavy haze"
- }
-]

intro-sequence/tools/flurry/review.py

@@ -1,69 +0,0 @@
-"""Fetch candidates and render labelled review sheets for visual verification.
-
-usage: python3 review.py landmarks|cities [start] [count]
-Writes tools/flurry/review/<kind>_NN.jpg (5x4 grid, 256px cells, labelled).
-"""
-import json
-import os
-import sys
-from concurrent.futures import ThreadPoolExecutor
-
-from PIL import Image, ImageDraw
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-from tiles import HERE, MAX_WORKERS, capture, quality_ok  # noqa: E402
-
-REV = os.path.join(HERE, "review")
-
-
-def load(kind):
-    if kind == "landmarks":
-        from landmarks import LANDMARKS
-        return [dict(name=n, country=c, lat=la, lon=lo, zoom=z) for n, c, la, lo, z in LANDMARKS]
-    return json.load(open(os.path.join(HERE, "city_candidates.json")))
-
-
-def run(cands, prefix, cell=256, cols=5, rows=4):
-    os.makedirs(REV, exist_ok=True)
-
-    def job(c):
-        try:
-            img, info = capture(c["lat"], c["lon"], c["zoom"])
-            return img, info
-        except Exception as e:
-            return None, {"error": str(e)}
-
-    with ThreadPoolExecutor(MAX_WORKERS) as ex:
-        res = list(ex.map(job, cands))
-    per = cols * rows
-    report = []
-    for s in range(0, len(cands), per):
-        sheet = Image.new("RGB", (cols * cell, rows * cell), (20, 20, 20))
-        d = ImageDraw.Draw(sheet)
-        for k, (c, (img, info)) in enumerate(zip(cands[s:s + per], res[s:s + per])):
-            x, y = (k % cols) * cell, (k // cols) * cell
-            idx = s + k
-            if img is not None:
-                sheet.paste(img.resize((cell, cell), Image.LANCZOS), (x, y))
-                ok, why = quality_ok(info)
-                lab2 = f"s{info['std']:.0f} g{info['grad']:.1f}" + ("" if ok else " X " + why[:18])
-            else:
-                ok, lab2 = False, "ERR"
-            d.rectangle((x, y, x + cell, y + 24), fill=(0, 0, 0))
-            d.text((x + 3, y + 1), f"{idx} {c['name'][:36]}", fill=(255, 255, 0))
-            d.text((x + 3, y + 12), lab2, fill=(255, 120, 120) if not ok else (160, 255, 160))
-            report.append((idx, c["name"], ok, lab2))
-        out = os.path.join(REV, f"{prefix}_{s // per:02d}.jpg")
-        sheet.save(out, quality=85)
-        print(out)
-    for r in report:
-        if not r[2]:
-            print("REJECT", r)
-
-
-if __name__ == "__main__":
-    kind = sys.argv[1]
-    cands = load(kind)
-    st = int(sys.argv[2]) if len(sys.argv) > 2 else 0
-    n = int(sys.argv[3]) if len(sys.argv) > 3 else len(cands)
-    run(cands[st:st + n], kind[:2] + (f"_{st}" if st else ""))

intro-sequence/tools/flurry/select_cities.py

@@ -1,109 +0,0 @@
-"""Pick ~170 city centres from data/cities.json with geographic spread.
-
-Writes tools/flurry/city_candidates.json: ordered list of dicts with
-rank ("primary"/"backup") and region. Backups replace rejected primaries of the
-same region in build.py.
-"""
-import json
-import math
-import os
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-ROOT = os.path.abspath(os.path.join(HERE, "..", ".."))
-
-AFRICA = {
-    "Nigeria", "Egypt", "Congo (Kinshasa)", "South Africa", "Algeria", "Sudan", "Morocco", "Tanzania",
-    "Cameroon", "Mozambique", "Libya", "Ethiopia", "Ivory Coast", "Tunisia", "Zambia", "Angola", "Ghana",
-    "Uganda", "Kenya", "Guinea", "Madagascar", "Senegal", "Zimbabwe", "Mali", "Somalia", "Chad", "Niger",
-    "Benin", "Eritrea", "Somaliland", "South Sudan", "Sierra Leone", "Mauritania", "Malawi", "Togo",
-    "Congo (Brazzaville)", "Burkina Faso", "Rwanda", "Mauritius", "Gabon", "Equatorial Guinea", "Liberia",
-    "Djibouti", "Central African Republic", "Guinea Bissau", "Lesotho", "Burundi", "Namibia", "Botswana",
-    "The Gambia", "Comoros", "Cape Verde", "eSwatini",
-}
-SOUTH_AMERICA = {"Brazil", "Argentina", "Colombia", "Venezuela", "Peru", "Chile", "Ecuador", "Bolivia",
-                 "Paraguay", "Uruguay", "Guyana", "Suriname"}
-OCEANIA = {"Australia", "New Zealand", "Papua New Guinea", "Fiji", "French Polynesia", "Guam"}
-CENTRAL_ASIA = {"Kazakhstan", "Uzbekistan", "Turkmenistan", "Kyrgyzstan", "Tajikistan", "Afghanistan", "Mongolia"}
-
-# (region, primary quota, backups, per-country cap, min spacing km)
-PASSES = [
-    ("africa", AFRICA, 31, 16, 3, 300),
-    ("south_america", SOUTH_AMERICA, 22, 10, 5, 250),
-    ("oceania", OCEANIA, 12, 4, 5, 120),
-    ("central_asia", CENTRAL_ASIA, 9, 5, 3, 150),
-    ("rest", None, 96, 40, 11, 200),
-]
-# Picked first (in "rest" unless their country is in a quota region): fill the
-# Pacific / high-latitude longitude bands and add visually distinctive cities.
-FORCED = [
-    "Honolulu", "Anchorage", "Papeete", "Agana", "Petropavlovsk-Kamchatsky", "Vancouver", "San Francisco",
-    "Las Vegas", "Seattle", "Phoenix", "Denver", "Calgary", "Guatemala City", "Havana", "Reykjavík",
-    "Dubai", "Doha", "Abu Dhabi", "Hong Kong", "Macau", "Venice", "Amsterdam", "København", "Oslo",
-    "Stockholm", "Helsinki", "Prague", "Kathmandu", "Colombo", "Vladivostok", "Novosibirsk", "Irkutsk",
-    "Yakutsk", "Norilsk", "Murmansk", "Manaus", "Mombasa", "Windhoek", "Nouakchott", "Marrakesh",
-    "Samarkand", "Cairns", "Muscat", "Québec",
-]
-# Natural Earth rows whose point lands in farmland/hills rather than a dense centre.
-EXCLUDE = {"Amaravati", "Hechi", "Saidu", "Cranbourne", "Manukau", "Waitakere", "North Shore", "Wahiawa"}
-COUNTRY_CAP_TOTAL = 12
-
-
-def km(a, b):
-    la1, lo1, la2, lo2 = map(math.radians, (a[1], a[0], b[1], b[0]))
-    h = math.sin((la2 - la1) / 2) ** 2 + math.cos(la1) * math.cos(la2) * math.sin((lo2 - lo1) / 2) ** 2
-    return 6371 * 2 * math.asin(math.sqrt(h))
-
-
-def main():
-    rows = json.load(open(os.path.join(ROOT, "data", "cities.json")))["rows"]
-    special = AFRICA | SOUTH_AMERICA | OCEANIA | CENTRAL_ASIA
-    chosen, out = [], []
-    byname = {}
-    for r in rows:
-        byname.setdefault(r[3], r)  # first = most populous
-    per = {}
-
-    def region_of(country):
-        for reg, mem, *_ in PASSES:
-            if mem and country in mem:
-                return reg
-        return "rest"
-
-    for nm in FORCED:
-        lon, lat, pop, name, country = byname[nm]
-        chosen.append((lon, lat))
-        per[country] = per.get(country, 0) + 1
-        out.append(dict(name=name, country=country, lat=lat, lon=lon, zoom=16, pop=pop,
-                        region=region_of(country), rank="primary", forced=True))
-    for region, members, quota, nback, cap, spacing in PASSES:
-        got = sum(1 for c in out if c["region"] == region)
-        for lon, lat, pop, name, country in rows:
-            if name in EXCLUDE or name in byname and any(c["name"] == name and c["country"] == country for c in out):
-                continue
-            inreg = (country in members) if members else (country not in special)
-            if not inreg:
-                continue
-            if per.get(country, 0) >= cap and got < quota or per.get(country, 0) >= COUNTRY_CAP_TOTAL:
-                continue
-            if any(km((lon, lat), (c[0], c[1])) < spacing for c in chosen):
-                continue
-            rank = "primary" if got < quota else "backup"
-            chosen.append((lon, lat))
-            per[country] = per.get(country, 0) + 1
-            out.append(dict(name=name, country=country, lat=lat, lon=lon, zoom=16, pop=pop,
-                            region=region, rank=rank))
-            got += 1
-            if got >= quota + nback:
-                break
-    json.dump(out, open(os.path.join(HERE, "city_candidates.json"), "w"), indent=0, ensure_ascii=False)
-    prim = [c for c in out if c["rank"] == "primary"]
-    print(len(prim), "primary,", len(out) - len(prim), "backup")
-    from collections import Counter
-    print(Counter(c["region"] for c in prim))
-    print(Counter(c["country"] for c in prim).most_common(12))
-    bands = Counter(int((c["lon"] + 180) // 30) for c in prim)
-    print("30deg bands:", [bands.get(i, 0) for i in range(12)])
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/flurry/tiles.py

@@ -1,132 +0,0 @@
-"""Polite cached Esri World Imagery fetch + 512px centred capture + quality metrics."""
-import hashlib
-import io
-import math
-import os
-import threading
-import time
-
-import numpy as np
-import requests
-from PIL import Image
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-CACHE = os.path.join(HERE, "cache")
-ROOT = os.path.abspath(os.path.join(HERE, "..", ".."))
-OUT = os.path.join(ROOT, "imagery", "flurry")
-
-ESRI = "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}"
-UA = "gods-eye-view-intro/1.0 (flurry montage prep)"
-MAX_WORKERS = 8
-PLACEHOLDER_MD5 = {"f27d9de7f80c13501f470595e327aa6d"}  # "Map data not yet available"
-
-_local = threading.local()
-
-
-def _session():
-    s = getattr(_local, "s", None)
-    if s is None:
-        s = requests.Session()
-        s.headers["User-Agent"] = UA
-        _local.s = s
-    return s
-
-
-def fetch_tile(z, x, y, retries=6):
-    n = 2 ** z
-    x %= n
-    path = os.path.join(CACHE, str(z), str(x), f"{y}.jpg")
-    if os.path.exists(path) and os.path.getsize(path) > 0:
-        with open(path, "rb") as f:
-            return f.read()
-    os.makedirs(os.path.dirname(path), exist_ok=True)
-    url = ESRI.format(z=z, x=x, y=y)
-    last = None
-    for attempt in range(retries):
-        try:
-            r = _session().get(url, timeout=45)
-            if r.status_code == 200 and r.content:
-                tmp = path + f".{threading.get_ident()}.part"
-                with open(tmp, "wb") as f:
-                    f.write(r.content)
-                os.replace(tmp, path)
-                return r.content
-            last = f"HTTP {r.status_code}"
-            if r.status_code in (400, 404):
-                break
-        except Exception as e:
-            last = repr(e)
-        time.sleep(min(20, 1.0 * 2 ** attempt))
-    raise RuntimeError(f"failed {url}: {last}")
-
-
-def is_placeholder(data):
-    if hashlib.md5(data).hexdigest() in PLACEHOLDER_MD5:
-        return True
-    a = np.asarray(Image.open(io.BytesIO(data)).convert("RGB")).astype(np.float32)
-    m = a.mean(axis=(0, 1))
-    return bool(abs(m - 204.7).max() < 4 and a.std() < 9)
-
-
-def pixel_xy(lat, lon, z):
-    n = 2 ** z * 256
-    px = (lon + 180.0) / 360.0 * n
-    s = math.sin(math.radians(lat))
-    py = (0.5 - math.log((1 + s) / (1 - s)) / (4 * math.pi)) * n
-    return px, py
-
-
-def capture(lat, lon, z, size=512):
-    """Return (image, info). info has placeholder flag and quality metrics."""
-    px, py = pixel_xy(lat, lon, z)
-    tx, ty = int(px // 256), int(py // 256)
-    mosaic = Image.new("RGB", (768, 768))
-    ox, oy = (tx - 1) * 256, (ty - 1) * 256
-    left, top = int(round(px - ox - size / 2)), int(round(py - oy - size / 2))
-    ph = False
-    for j in range(3):
-        for i in range(3):
-            data = fetch_tile(z, tx - 1 + i, ty - 1 + j)
-            # does this tile overlap the crop window?
-            tl, tt = i * 256, j * 256
-            overlaps = tl < left + size and tl + 256 > left and tt < top + size and tt + 256 > top
-            if overlaps and is_placeholder(data):
-                ph = True
-            mosaic.paste(Image.open(io.BytesIO(data)).convert("RGB"), (tl, tt))
-    img = mosaic.crop((left, top, left + size, top + size))
-    info = metrics(img)
-    info["placeholder"] = ph
-    return img, info
-
-
-def metrics(img):
-    a = np.asarray(img).astype(np.float32)
-    lum = a @ np.array([0.299, 0.587, 0.114], np.float32)
-    small = np.asarray(img.convert("L").resize((128, 128), Image.BILINEAR)).astype(np.float32)
-    gx = np.abs(np.diff(lum, axis=1)).mean()
-    gy = np.abs(np.diff(lum, axis=0)).mean()
-    # coarse-scale structure: std of 32px block means (catches flat ocean/cloud/ice)
-    blocks = lum.reshape(16, 32, 16, 32).mean(axis=(1, 3))
-    sat = (a.max(axis=2) - a.min(axis=2)).mean()
-    return {
-        "std": float(lum.std()),
-        "grad": float((gx + gy) / 2),
-        "block_std": float(blocks.std()),
-        "small_std": float(small.std()),
-        "sat": float(sat),
-        "mean": float(lum.mean()),
-    }
-
-
-def quality_ok(info):
-    if info["placeholder"]:
-        return False, "placeholder"
-    if info["std"] < 12:
-        return False, f"low variance (std {info['std']:.1f})"
-    if info["grad"] < 1.3:
-        return False, f"featureless (grad {info['grad']:.1f})"
-    if info["mean"] > 225 and info["std"] < 25:
-        return False, "cloud/snow white-out"
-    if info["mean"] < 22:
-        return False, "too dark"
-    return True, ""

intro-sequence/tools/imagery/.gitignore

@@ -1 +0,0 @@
-cache/

intro-sequence/tools/imagery/build_clouds.py

@@ -1,76 +0,0 @@
-"""Deliverable 3: clouds.jpg (4096x2048) grayscale cloud opacity map for one recent day.
-
-Source: NASA GIBS daily VIIRS Corrected Reflectance True Colour for the same UTC
-date from three satellites (NOAA-20, NOAA-21, Suomi NPP), EPSG:4326 level 3
-(10x5 tiles of 512px = 5120x2560), downsampled to 4096x2048.
-
-Cloud metric per satellite:
-    whiteness = min(R,G,B)            (clouds are bright in every channel)
-    greyness  = 1 - saturation        (clouds are colourless)
-    c = ramp(whiteness) * smoothstep(greyness)
-The same metric computed on the Esri base map (earth_day_4k.jpg) is subtracted
-to suppress bright deserts, salt flats, snow and ice that would otherwise read
-as cloud. The three per-satellite results are combined with a per-pixel median
-(nan-aware), which removes swath-edge haze / glint streaks that only one
-satellite shows, and fills swath gaps. Remaining no-data (polar night) -> 0.
-
-Usage: python3 build_clouds.py [YYYY-MM-DD]
-"""
-import os
-import sys
-import numpy as np
-from PIL import Image
-from common import OUT, gibs_mosaic
-
-Image.MAX_IMAGE_PIXELS = None
-DATE = sys.argv[1] if len(sys.argv) > 1 else "2026-10-15"
-LAYERS = [
-    "VIIRS_NOAA20_CorrectedReflectance_TrueColor",
-    "VIIRS_NOAA21_CorrectedReflectance_TrueColor",
-    "VIIRS_SNPP_CorrectedReflectance_TrueColor",
-]
-W, H = 4096, 2048
-
-
-def smooth(x, a, b):
-    t = np.clip((x - a) / (b - a), 0, 1)
-    return t * t * (3 - 2 * t)
-
-
-def metric(rgb):
-    rgb = rgb.astype(np.float32) / 255.0
-    mn = rgb.min(2)
-    mx = rgb.max(2)
-    sat = (mx - mn) / (mx + 1e-4)
-    white = np.clip((mn - 0.14) / 0.86, 0, 1) ** 1.15  # linear-ish: keeps texture inside thick cloud
-    return white * smooth(1.0 - sat, 0.65, 0.95), mx
-
-
-def main():
-    base = np.asarray(Image.open(os.path.join(OUT, "earth_day_4k.jpg")).convert("RGB"))
-    base_c, _ = metric(base)
-    # dilate the base metric a few px so small Esri/VIIRS coastline misregistration
-    # does not leave bright outlines along desert and ice coasts
-    from PIL import ImageFilter
-    base_c = np.asarray(Image.fromarray((base_c * 255).astype(np.uint8)).filter(ImageFilter.MaxFilter(3)).filter(ImageFilter.GaussianBlur(2))).astype(np.float32) / 255
-    stack = []
-    for L in LAYERS:
-        m = gibs_mosaic(L, DATE, "250m", 3, 5, 10, "jpg").resize((W, H), Image.LANCZOS)
-        c, mx = metric(np.asarray(m))
-        c = np.clip(c - base_c * 1.1, 0, 1)
-        c[mx < 0.03] = np.nan  # no-data (black)
-        stack.append(c)
-    stack = np.stack(stack)
-    with np.errstate(all="ignore"):
-        import warnings
-        warnings.simplefilter("ignore")
-        cloud = np.nanmedian(stack, axis=0)
-    cloud = np.nan_to_num(cloud, nan=0.0)
-    cloud = np.clip((cloud - 0.06) / 0.94, 0, 1)  # black point: kill faint surface/haze residue
-    img = Image.fromarray(np.clip(cloud * 255 + 0.5, 0, 255).astype(np.uint8), "L")
-    img.save(os.path.join(OUT, "clouds.jpg"), quality=92, optimize=True, progressive=True)
-    print("done", DATE, "mean opacity %.3f" % cloud.mean())
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/imagery/build_day.py

@@ -1,91 +0,0 @@
-"""Deliverable 1: earth_day.jpg (8192x4096) + earth_day_4k.jpg (4096x2048).
-
-Esri World Imagery z5 (32x32 tiles, 8192x8192 Web Mercator) reprojected to
-equirectangular with bilinear sampling. Because both grids are 8192 px wide and
-linear in longitude, the horizontal axis maps 1:1 and only latitude needs
-resampling (linear interpolation between Mercator rows = bilinear).
-
-Polar caps beyond the Mercator limit (+-85.0511 deg) come from NASA GIBS
-BlueMarble_ShadedRelief_Bathymetry (EPSG:4326, level 4 = 10240x5120; its shaded
-bathymetry matches Esri's small-scale ocean rendering), colour-matched to Esri
-with a least-squares affine colour transform fitted on co-registered overlap pixels and cross-faded between 80 and 84.5 deg.
-"""
-import os
-import numpy as np
-from PIL import Image
-from common import OUT, esri_jobs, fetch_many, decode, gibs_mosaic
-
-Image.MAX_IMAGE_PIXELS = None
-W, H = 8192, 4096
-Z = 5
-N = 2 ** Z
-TS = 256
-MERC = N * TS  # 8192
-MERC_LIMIT = np.degrees(np.arctan(np.sinh(np.pi)))  # 85.0511
-FADE_A, FADE_B = 80.0, 84.5  # pure Esri below A, pure Blue Marble above B
-CAP_LAYER = os.environ.get("CAP_LAYER", "BlueMarble_ShadedRelief_Bathymetry")
-
-
-def esri_mercator():
-    coords = [(x, y) for y in range(N) for x in range(N)]
-    res = fetch_many(esri_jobs(Z, coords), desc="esri z5")
-    merc = np.zeros((MERC, MERC, 3), np.uint8)
-    for (x, y), b in res.items():
-        if b is None:
-            raise SystemExit(f"missing esri tile {x},{y}")
-        merc[y * TS:(y + 1) * TS, x * TS:(x + 1) * TS] = np.asarray(decode(b))
-    return merc
-
-
-def main():
-    merc = esri_mercator()
-    print("reprojecting")
-    lat = 90.0 - (np.arange(H) + 0.5) * 180.0 / H
-    latc = np.clip(lat, -MERC_LIMIT + 1e-6, MERC_LIMIT - 1e-6)
-    yn = (1.0 - np.log(np.tan(np.pi / 4 + np.radians(latc) / 2)) / np.pi) / 2.0
-    v = yn * MERC - 0.5
-    v0 = np.clip(np.floor(v).astype(int), 0, MERC - 1)
-    v1 = np.clip(v0 + 1, 0, MERC - 1)
-    f = np.clip(v - np.floor(v), 0, 1).astype(np.float32)[:, None, None]
-    eq = np.empty((H, W, 3), np.float32)
-    for s in range(0, H, 256):
-        e = s + 256
-        eq[s:e] = merc[v0[s:e]].astype(np.float32) * (1 - f[s:e]) + merc[v1[s:e]].astype(np.float32) * f[s:e]
-    del merc
-
-    print("fetching polar caps:", CAP_LAYER)
-    bm = gibs_mosaic(CAP_LAYER, None, "500m", 4, 10, 20, "jpg")
-    bm = np.asarray(bm.resize((W, H), Image.LANCZOS)).astype(np.float32)
-
-    # colour-match Blue Marble to Esri per hemisphere: fit an affine 3x3+offset colour
-    # transform (least squares) on co-registered pixels in the 76-84.5 deg overlap band
-    alat = np.abs(lat)
-    band = (alat > 76) & (alat < 84.5)
-    t = np.clip((alat - FADE_A) / (FADE_B - FADE_A), 0, 1)
-    t = (t * t * (3 - 2 * t)).astype(np.float32)[:, None, None]  # smoothstep
-    out = eq.copy()
-    for hemi in (lat > 0, lat < 0):
-        rows = band & hemi
-        a = eq[rows][:, ::4].reshape(-1, 3)
-        b = bm[rows][:, ::4].reshape(-1, 3)
-        X = np.hstack([b, np.ones((len(b), 1), np.float32)])
-        # ridge-regularised toward identity: near-grey ice makes the plain fit ill-conditioned
-        lam = len(b) * 50.0
-        D = np.diag([1.0, 1.0, 1.0, 0.0])
-        I0 = np.vstack([np.eye(3), np.zeros((1, 3))])
-        X64, a64 = X.astype(np.float64), a.astype(np.float64)
-        M = np.linalg.solve(X64.T @ X64 + lam * D, X64.T @ a64 + lam * D @ I0)
-        print("  colour transform\n", M.round(3))
-        h = bm[hemi]
-        bm[hemi] = (h.reshape(-1, 3) @ M[:3] + M[3]).reshape(h.shape)
-        out[hemi] = eq[hemi] * (1 - t[hemi]) + bm[hemi] * t[hemi]
-
-    img = Image.fromarray(np.clip(out + 0.5, 0, 255).astype(np.uint8))
-    os.makedirs(OUT, exist_ok=True)
-    img.save(os.path.join(OUT, "earth_day.jpg"), quality=92, optimize=True, progressive=True)
-    img.resize((4096, 2048), Image.LANCZOS).save(os.path.join(OUT, "earth_day_4k.jpg"), quality=92, optimize=True, progressive=True)
-    print("done")
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/imagery/build_hero.py

@@ -1,133 +0,0 @@
-"""Deliverable 4: Esri World Imagery 'synthetic screenshots' of iconic places.
-
-For each location: <slug>_wide.jpg (zoom 13) and <slug>_close.jpg (zoom 18,
-falling back to 17/16 when Esri serves "Map data not yet available"
-placeholder tiles), both 1536x1024 centred on the point. Writes index.json.
-
-Usage: python3 build_hero.py [--contact DIR]   (contact sheets for visual QA)
-       Per-location overrides: CLOSE_ZOOM_OVERRIDES below.
-"""
-import io
-import json
-import math
-import os
-import sys
-import numpy as np
-from PIL import Image
-from common import OUT, esri_jobs, fetch_many
-
-HERO = os.path.join(OUT, "hero")
-CW, CH = 1536, 1024
-TS = 256
-
-LOCATIONS = [
-    ("manhattan", "Midtown Manhattan", 40.7580, -73.9855),
-    ("palm_jumeirah", "Palm Jumeirah", 25.1124, 55.1390),
-    ("singapore_port", "Port of Singapore (Pasir Panjang Terminal)", 1.2730, 103.7690),  # was 1.2650,103.8180 (Keppel Bay residential, no port),
-    ("shibuya", "Shibuya Crossing", 35.6595, 139.7005),
-    ("arc_de_triomphe", "Arc de Triomphe", 48.8738, 2.2950),
-    ("giza", "Giza Pyramids", 29.9792, 31.1342),
-    ("rotterdam_port", "Port of Rotterdam", 51.9500, 4.0500),
-    ("lax", "Los Angeles International Airport", 33.9416, -118.4085),
-    ("hong_kong", "Victoria Harbour, Hong Kong", 22.2930, 114.1700),
-    ("panama_canal", "Panama Canal, Miraflores Locks", 8.9966, -79.5915),  # was 9.0800,-79.6800 (blurry jungle/lake shore),
-    ("sydney_opera", "Sydney Opera House", -33.8568, 151.2153),
-    ("kennedy_lc39a", "Kennedy Space Center LC-39A", 28.6083, -80.6041),
-    ("heathrow", "London Heathrow Airport", 51.4700, -0.4543),
-    ("rio_maracana", "Maracana Stadium, Rio de Janeiro", -22.9122, -43.2302),
-    ("venice", "Venice", 45.4340, 12.3388),
-    ("las_vegas_strip", "Las Vegas Strip", 36.1147, -115.1728),
-    ("vatican", "Vatican City", 41.9022, 12.4539),
-    ("burj_khalifa", "Burj Khalifa, Dubai", 25.1972, 55.2744),
-    ("golden_gate", "Golden Gate Bridge", 37.8199, -122.4783),
-    ("kremlin", "Moscow Kremlin", 55.7520, 37.6175),
-    ("tiananmen", "Tiananmen Square, Beijing", 39.9037, 116.3917),  # was 39.9055,116.3976 (east of the square),
-    ("mumbai_port", "Mumbai Port", 18.9400, 72.8400),
-    ("suez_canal", "Suez Canal, Ismailia", 30.6141, 32.3228),  # was 30.5850,32.2650 (Ismailia city blocks, canal off-frame),
-    ("pentagon", "The Pentagon", 38.8719, -77.0563),
-]
-
-WIDE_ZOOM = 13
-CLOSE_ZOOM = 18
-CLOSE_ZOOM_OVERRIDES = {}  # slug -> zoom, set after visual QA if needed
-DROP = set()               # slugs rejected after visual QA
-
-
-def world_px(lat, lon, z):
-    n = TS * 2 ** z
-    x = (lon + 180.0) / 360.0 * n
-    s = math.sin(math.radians(lat))
-    y = (0.5 - math.log((1 + s) / (1 - s)) / (4 * math.pi)) * n
-    return x, y
-
-
-def is_placeholder(tile):
-    a = np.asarray(tile).astype(np.float32)
-    m = a.reshape(-1, 3).mean(0)
-    return a.std() < 8 and abs(m[0] - m[1]) < 4 and abs(m[1] - m[2]) < 4
-
-
-def render(lat, lon, z):
-    """Return (image, placeholder_fraction)."""
-    cx, cy = world_px(lat, lon, z)
-    x0, y0 = int(round(cx - CW / 2)), int(round(cy - CH / 2))
-    tx0, ty0 = x0 // TS, y0 // TS
-    tx1, ty1 = (x0 + CW - 1) // TS, (y0 + CH - 1) // TS
-    n = 2 ** z
-    coords = [(tx % n, ty) for ty in range(ty0, ty1 + 1) for tx in range(tx0, tx1 + 1)]
-    data = fetch_many(esri_jobs(z, coords), desc=f"z{z}")
-    canvas = Image.new("RGB", ((tx1 - tx0 + 1) * TS, (ty1 - ty0 + 1) * TS))
-    ph = 0
-    for ty in range(ty0, ty1 + 1):
-        for tx in range(tx0, tx1 + 1):
-            b = data.get((tx % n, ty))
-            if b is None:
-                ph += 1
-                continue
-            t = Image.open(io.BytesIO(b)).convert("RGB")
-            if is_placeholder(t):
-                ph += 1
-            canvas.paste(t, ((tx - tx0) * TS, (ty - ty0) * TS))
-    crop = canvas.crop((x0 - tx0 * TS, y0 - ty0 * TS, x0 - tx0 * TS + CW, y0 - ty0 * TS + CH))
-    return crop, ph / len(coords)
-
-
-def main():
-    os.makedirs(HERO, exist_ok=True)
-    contact = None
-    if "--contact" in sys.argv:
-        contact = sys.argv[sys.argv.index("--contact") + 1]
-        os.makedirs(contact, exist_ok=True)
-    index = []
-    for slug, name, lat, lon in LOCATIONS:
-        if slug in DROP:
-            for k in ("wide", "close"):
-                p = os.path.join(HERO, f"{slug}_{k}.jpg")
-                if os.path.exists(p):
-                    os.remove(p)
-            print(f"{slug}: dropped")
-            continue
-        wide, _ = render(lat, lon, WIDE_ZOOM)
-        z = CLOSE_ZOOM_OVERRIDES.get(slug, CLOSE_ZOOM)
-        while True:
-            close, ph = render(lat, lon, z)
-            if ph == 0 or z <= 16:
-                break
-            print(f"  {slug}: {ph:.0%} placeholder tiles at z{z}, falling back")
-            z -= 1
-        wide.save(os.path.join(HERO, f"{slug}_wide.jpg"), quality=92, optimize=True)
-        close.save(os.path.join(HERO, f"{slug}_close.jpg"), quality=92, optimize=True)
-        index.append({"slug": slug, "name": name, "lat": lat, "lon": lon, "close_zoom": z})
-        print(f"{slug}: close z{z}")
-        if contact:
-            sheet = Image.new("RGB", (1536, 512))
-            sheet.paste(wide.resize((768, 512), Image.LANCZOS), (0, 0))
-            sheet.paste(close.resize((768, 512), Image.LANCZOS), (768, 0))
-            sheet.save(os.path.join(contact, f"{slug}.jpg"), quality=85)
-    with open(os.path.join(HERO, "index.json"), "w") as f:
-        json.dump(index, f, indent=2)
-    print(f"{len(index)} locations written")
-
-
-if __name__ == "__main__":
-    main()

intro-sequence/tools/imagery/build_night.py

@@ -1,20 +0,0 @@
-"""Deliverable 2: earth_night.jpg (8192x4096) + earth_night_4k.jpg (4096x2048).
-
-NASA Black Marble (layer VIIRS_Black_Marble, 2016 annual composite) from GIBS
-EPSG:4326 level 4 (20x10 tiles of 512px = 10240x5120), Lanczos-downsampled.
-Colour kept as served.
-"""
-import os
-from PIL import Image
-from common import OUT, gibs_mosaic
-
-Image.MAX_IMAGE_PIXELS = None
-LAYER = os.environ.get("NIGHT_LAYER", "VIIRS_Black_Marble")
-TIME = os.environ.get("NIGHT_TIME", "2016-01-01")
-EXT = "png" if LAYER == "VIIRS_Black_Marble" else "jpg"
-
-m = gibs_mosaic(LAYER, TIME if LAYER == "VIIRS_Black_Marble" else None, "500m", 4, 10, 20, EXT)
-big = m.resize((8192, 4096), Image.LANCZOS)
-big.save(os.path.join(OUT, "earth_night.jpg"), quality=92, optimize=True, progressive=True)
-big.resize((4096, 2048), Image.LANCZOS).save(os.path.join(OUT, "earth_night_4k.jpg"), quality=92, optimize=True, progressive=True)
-print("done", LAYER, TIME)

intro-sequence/tools/imagery/build_quadtree_tiles.py

@@ -1,15 +0,0 @@
-"""Deliverable 5: Esri World Imagery z3 (8x8) and z4 (16x16) tiles for the quadtree indexing effect."""
-import os, shutil
-from common import OUT, esri_jobs, fetch_many, esri_tile_path
-
-for z in (3, 4):
-    n = 2 ** z
-    d = os.path.join(OUT, f"tiles_z{z}")
-    os.makedirs(d, exist_ok=True)
-    coords = [(x, y) for y in range(n) for x in range(n)]
-    res = fetch_many(esri_jobs(z, coords), desc=f"esri z{z}")
-    bad = [k for k, v in res.items() if v is None]
-    for x, y in coords:
-        if res[(x, y)] is not None:
-            shutil.copyfile(esri_tile_path(z, x, y), os.path.join(d, f"z{z}_{x}_{y}.jpg"))
-    print(f"z{z}: {len(coords)-len(bad)} tiles written, {len(bad)} failed")

intro-sequence/tools/imagery/common.py

@@ -1,116 +0,0 @@
-"""Shared helpers: polite cached tile fetching for Esri World Imagery and NASA GIBS."""
-import io
-import os
-import sys
-import time
-import threading
-from concurrent.futures import ThreadPoolExecutor, as_completed
-
-import requests
-from PIL import Image
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-CACHE = os.path.join(HERE, "cache")
-ROOT = os.path.abspath(os.path.join(HERE, "..", ".."))
-OUT = os.path.join(ROOT, "imagery")
-
-MAX_WORKERS = 8
-UA = "gods-eye-view-intro/1.0 (texture prep; contact: project maintainer)"
-
-ESRI = "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}"
-GIBS4326 = "https://gibs.earthdata.nasa.gov/wmts/epsg4326/best/{layer}/default/{time}/{tms}/{z}/{row}/{col}.{ext}"
-
-_local = threading.local()
-
-
-def _session():
-    s = getattr(_local, "s", None)
-    if s is None:
-        s = requests.Session()
-        s.headers["User-Agent"] = UA
-        _local.s = s
-    return s
-
-
-def fetch(url, cache_path, retries=6):
-    """Return raw bytes for url, caching to cache_path. Retries with backoff."""
-    if os.path.exists(cache_path) and os.path.getsize(cache_path) > 0:
-        with open(cache_path, "rb") as f:
-            return f.read()
-    os.makedirs(os.path.dirname(cache_path), exist_ok=True)
-    last = None
-    for attempt in range(retries):
-        try:
-            r = _session().get(url, timeout=60)
-            if r.status_code == 200 and r.content:
-                tmp = cache_path + ".part"
-                with open(tmp, "wb") as f:
-                    f.write(r.content)
-                os.replace(tmp, cache_path)
-                return r.content
-            if r.status_code in (400, 404):
-                last = f"HTTP {r.status_code}"
-                break
-            last = f"HTTP {r.status_code}"
-        except Exception as e:  # network hiccup
-            last = repr(e)
-        time.sleep(min(30, 1.5 * 2 ** attempt))
-    raise RuntimeError(f"failed {url}: {last}")
-
-
-def fetch_many(jobs, desc=""):
-    """jobs: list of (key, url, cache_path). Returns {key: bytes or None}."""
-    out = {}
-    done = 0
-    with ThreadPoolExecutor(MAX_WORKERS) as ex:
-        futs = {ex.submit(fetch, u, p): k for k, u, p in jobs}
-        for f in as_completed(futs):
-            k = futs[f]
-            try:
-                out[k] = f.result()
-            except Exception as e:
-                print(f"  ! {e}", file=sys.stderr)
-                out[k] = None
-            done += 1
-            if done % 100 == 0 or done == len(jobs):
-                print(f"  {desc} {done}/{len(jobs)}", flush=True)
-    return out
-
-
-def esri_tile_path(z, x, y):
-    return os.path.join(CACHE, "esri", str(z), str(y), f"{x}.jpg")
-
-
-def esri_jobs(z, coords):
-    return [((x, y), ESRI.format(z=z, x=x, y=y), esri_tile_path(z, x, y)) for x, y in coords]
-
-
-def gibs_path(layer, time_, tms, z, row, col, ext):
-    return os.path.join(CACHE, "gibs", layer, time_ or "default", tms, str(z), str(row), f"{col}.{ext}")
-
-
-def gibs_jobs(layer, time_, tms, z, rows, cols, ext):
-    t = time_ or "default"
-    return [((r, c), GIBS4326.format(layer=layer, time=t, tms=tms, z=z, row=r, col=c, ext=ext),
-             gibs_path(layer, time_, tms, z, r, c, ext)) for r in range(rows) for c in range(cols)]
-
-
-def decode(b, mode="RGB"):
-    return Image.open(io.BytesIO(b)).convert(mode)
-
-
-def gibs_mosaic(layer, time_, tms, z, rows, cols, ext, mode="RGB"):
-    """Fetch and stitch a full-globe GIBS EPSG:4326 level (512px tiles)."""
-    jobs = gibs_jobs(layer, time_, tms, z, rows, cols, ext)
-    data = fetch_many(jobs, desc=f"{layer} z{z}")
-    W, H = cols * 512, rows * 512
-    canvas = Image.new(mode, (W, H))
-    missing = 0
-    for (r, c), b in data.items():
-        if b is None:
-            missing += 1
-            continue
-        canvas.paste(decode(b, mode), (c * 512, r * 512))
-    if missing:
-        print(f"  {missing} tiles missing for {layer}", file=sys.stderr)
-    return canvas

intro-sequence/tools/live/build_transit.py

@@ -1,82 +0,0 @@
-"""MBTA static GTFS -> city/boston/transit.json (subway, Mattapan, commuter rail, bus).
-usage: python3 build_transit.py <dir with routes.txt shapes.txt trips.txt>"""
-import csv, json, math, os, sys
-from collections import defaultdict
-sys.path.insert(0, os.path.dirname(__file__))
-from common import SCENES, enu
-ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
-G = sys.argv[1]
-H = SCENES['boston'][2]; M = H + 1000
-
-def rdp(pts, eps):
-    if len(pts) < 3: return pts
-    keep = [False] * len(pts); keep[0] = keep[-1] = True
-    stack = [(0, len(pts) - 1)]
-    while stack:
-        a, b = stack.pop()
-        ax, ay = pts[a]; bx, by = pts[b]; dx, dy = bx - ax, by - ay; L = math.hypot(dx, dy)
-        best, bi = -1, -1
-        for i in range(a + 1, b):
-            px, py = pts[i]
-            d = abs(dy * (px - ax) - dx * (py - ay)) / L if L else math.hypot(px - ax, py - ay)
-            if d > best: best, bi = d, i
-        if best > eps:
-            keep[bi] = True; stack += [(a, bi), (bi, b)]
-    return [p for p, k in zip(pts, keep) if k]
-
-def length(p): return sum(math.hypot(p[i+1][0]-p[i][0], p[i+1][1]-p[i][1]) for i in range(len(p)-1))
-
-routes = {}
-for r in csv.DictReader(open(os.path.join(G, 'routes.txt'), encoding='utf-8-sig')):
-    t = int(r['route_type'])
-    if t not in (0, 1, 2, 3): continue
-    if 'Replacement' in r['route_desc'] or r['route_id'].startswith('Shuttle'): continue
-    name = r['route_short_name'] or r['route_long_name']
-    if t == 3 and r['route_short_name'] and r['route_long_name']:
-        name = f"{r['route_short_name']} {r['route_long_name']}"
-    routes[r['route_id']] = {'name': name, 'color': '#' + (r['route_color'] or '888888').upper(), 'type': t}
-
-shape_rd = {}
-for t in csv.DictReader(open(os.path.join(G, 'trips.txt'), encoding='utf-8-sig')):
-    if t['route_id'] in routes and t['shape_id']:
-        shape_rd.setdefault(t['shape_id'], (t['route_id'], t['direction_id']))
-
-shapes = defaultdict(list)
-for s in csv.DictReader(open(os.path.join(G, 'shapes.txt'), encoding='utf-8-sig')):
-    if s['shape_id'] in shape_rd:
-        shapes[s['shape_id']].append((int(s['shape_pt_sequence']), float(s['shape_pt_lat']), float(s['shape_pt_lon'])))
-
-best = {}  # (route, dir) -> (len_in_square, segments)
-for sid, pts in shapes.items():
-    pts.sort()
-    xy = [enu('boston', la, lo) for _, la, lo in pts]
-    if not any(abs(x) <= H and abs(y) <= H for x, y in xy): continue  # must pass within the square
-    segs, cur = [], []
-    for i, (x, y) in enumerate(xy):
-        if abs(x) <= M and abs(y) <= M:
-            if not cur and i > 0: cur.append(xy[i-1])  # carry edge point
-            cur.append((x, y))
-        elif cur:
-            cur.append((x, y)); segs.append(cur); cur = []
-    if cur: segs.append(cur)
-    segs = [rdp(s, 2.0) for s in segs if len(s) > 1]
-    L = sum(length(s) for s in segs)
-    key = shape_rd[sid]
-    if key not in best or L > best[key][0]: best[key] = (L, segs)
-
-out_shapes, seen = [], set()
-for (rid, d), (L, segs) in sorted(best.items()):
-    for s in segs:
-        flat = tuple(round(v, 1) for p in s for v in p)
-        if (rid, flat) in seen: continue
-        seen.add((rid, flat))
-        out_shapes.append([rid] + list(flat))
-used = {s[0] for s in out_shapes}
-out = {'routes': {k: v for k, v in routes.items() if k in used}, 'shapes': out_shapes,
-       'source': 'MBTA GTFS ' + open(os.path.join(G, 'feed_info.txt')).read().splitlines()[1].split(',"')[1].split('"')[0]}
-json.dump(out, open(os.path.join(ROOT, 'city', 'boston', 'transit.json'), 'w'), separators=(',', ':'))
-bytype = defaultdict(int)
-for k in used: bytype[routes[k]['type']] += 1
-print('routes', len(used), dict(bytype), 'shapes', len(out_shapes), 'pts', sum((len(s)-1)//2 for s in out_shapes))
-print('rail routes:', sorted(k for k in used if routes[k]['type'] != 3))
-print('missing requested:', [k for k in ['Red','Orange','Blue','Green-B','Green-C','Green-D','Green-E','Mattapan'] if k not in used])

intro-sequence/tools/live/common.py

@@ -1,15 +0,0 @@
-import math
-SCENES = {
-    'nyc': (40.7400, -73.9900, 3500),
-    'boston': (42.3555, -71.0605, 3200),
-    'lax': (33.9425, -118.4081, 3500),
-    'bragg': (35.1580, -79.0090, 6000),
-}
-def enu(slug, lat, lon):
-    lat0, lon0, _ = SCENES[slug]
-    x = (lon - lon0) * math.cos(math.radians(lat0)) * 111320
-    y = (lat - lat0) * 110540
-    return round(x, 1), round(y, 1)
-def inside(slug, x, y, margin=0.0):
-    h = SCENES[slug][2] + margin
-    return abs(x) <= h and abs(y) <= h

intro-sequence/tools/live/detect.py

@@ -1,76 +0,0 @@
-"""YOLOv8n (ONNX, CPU) over cctv/cam_*.jpg and cctv/nyc/*.jpg -> cctv/detections.json.
-Model auto-downloads to tools/live/models/yolov8n.onnx (git-ignored)."""
-import glob, json, os, sys, time, requests
-import numpy as np, onnxruntime as ort
-from PIL import Image, ImageDraw
-from collections import Counter
-HERE = os.path.dirname(os.path.abspath(__file__)); ROOT = os.path.abspath(os.path.join(HERE, '..', '..'))
-MODEL = os.path.join(HERE, 'models', 'yolov8n.onnx')
-MODEL_URL = 'https://huggingface.co/Kalray/yolov8/resolve/main/yolov8n.onnx'
-KEEP = {0: 'person', 1: 'bicycle', 2: 'car', 3: 'motorcycle', 5: 'bus', 7: 'truck', 9: 'traffic light', 11: 'stop sign'}
-CONF, IOU, S = 0.16, 0.45, 640
-if not os.path.exists(MODEL):
-    os.makedirs(os.path.dirname(MODEL), exist_ok=True)
-    open(MODEL, 'wb').write(requests.get(MODEL_URL, timeout=120).content)
-sess = ort.InferenceSession(MODEL, providers=['CPUExecutionProvider'])
-inp = sess.get_inputs()[0].name
-
-def nms(b, s, thr):
-    order = s.argsort()[::-1]; keep = []
-    while order.size:
-        i = order[0]; keep.append(i)
-        xx0 = np.maximum(b[i, 0], b[order[1:], 0]); yy0 = np.maximum(b[i, 1], b[order[1:], 1])
-        xx1 = np.minimum(b[i, 2], b[order[1:], 2]); yy1 = np.minimum(b[i, 3], b[order[1:], 3])
-        inter = np.clip(xx1 - xx0, 0, None) * np.clip(yy1 - yy0, 0, None)
-        a = (b[:, 2] - b[:, 0]) * (b[:, 3] - b[:, 1])
-        iou = inter / (a[i] + a[order[1:]] - inter + 1e-9)
-        order = order[1:][iou <= thr]
-    return keep
-
-def detect(path):
-    im = Image.open(path).convert('RGB'); W, H = im.size
-    r = min(S / W, S / H); nw, nh = round(W * r), round(H * r); px, py = (S - nw) // 2, (S - nh) // 2
-    canvas = Image.new('RGB', (S, S), (114, 114, 114)); canvas.paste(im.resize((nw, nh), Image.BILINEAR), (px, py))
-    x = np.asarray(canvas, dtype=np.float32).transpose(2, 0, 1)[None] / 255.0
-    p = sess.run(None, {inp: x})[0][0].T  # 8400 x 84
-    sc = p[:, 4:]; cls = sc.argmax(1); conf = sc.max(1)
-    m = (conf >= CONF) & np.isin(cls, list(KEEP))
-    p, cls, conf = p[m], cls[m], conf[m]
-    if not len(p): return []
-    b = np.stack([p[:, 0] - p[:, 2] / 2, p[:, 1] - p[:, 3] / 2, p[:, 0] + p[:, 2] / 2, p[:, 1] + p[:, 3] / 2], 1)
-    out = []
-    for c in np.unique(cls):  # class-wise NMS
-        idx = np.where(cls == c)[0]
-        for k in nms(b[idx], conf[idx], IOU):
-            j = idx[k]; x0, y0, x1, y1 = b[j]
-            x0 = min(max((x0 - px) / r / W, 0), 1); x1 = min(max((x1 - px) / r / W, 0), 1)
-            y0 = min(max((y0 - py) / r / H, 0), 1); y1 = min(max((y1 - py) / r / H, 0), 1)
-            if x1 - x0 > 0 and y1 - y0 > 0:
-                out.append([round(float(x0), 4), round(float(y0), 4), round(float(x1), 4), round(float(y1), 4), round(float(conf[j]), 3), KEEP[int(c)]])
-    return sorted(out, key=lambda d: -d[4])
-
-COL = {'person': (255, 60, 60), 'car': (60, 200, 255), 'truck': (255, 180, 0), 'bus': (255, 0, 255), 'bicycle': (0, 255, 120),
-       'motorcycle': (180, 255, 0), 'traffic light': (255, 255, 255), 'stop sign': (255, 0, 0)}
-def render(path, dets, dst):
-    im = Image.open(path).convert('RGB'); W, H = im.size; d = ImageDraw.Draw(im)
-    for x0, y0, x1, y1, c, n in dets:
-        d.rectangle([x0 * W, y0 * H, x1 * W, y1 * H], outline=COL[n], width=2)
-        d.text((x0 * W + 2, max(0, y0 * H - 11)), f'{n} {c:.2f}', fill=COL[n])
-    im.save(dst, quality=90)
-
-if __name__ == '__main__':
-    files = sorted(glob.glob(os.path.join(ROOT, 'cctv', 'cam_*.jpg'))) + sorted(glob.glob(os.path.join(ROOT, 'cctv', 'nyc', '*.jpg')))
-    res, tot, t0 = {}, Counter(), time.time()
-    for f in files:
-        rel = os.path.relpath(f, os.path.join(ROOT, 'cctv'))
-        res[rel] = detect(f); tot.update(d[5] for d in res[rel])
-    dt = time.time() - t0
-    json.dump(res, open(os.path.join(ROOT, 'cctv', 'detections.json'), 'w'), separators=(',', ':'))
-    print('images', len(files), 'secs', round(dt, 1), 'ms/img', round(1000 * dt / max(1, len(files))))
-    print('totals', dict(tot.most_common()), 'all', sum(tot.values()))
-    print('nyc totals', dict(Counter(d[5] for k, v in res.items() if k.startswith('nyc/') for d in v)))
-    picks = sys.argv[1:] or [max((k for k in res if k.startswith('nyc/')), key=lambda k: len(res[k])),
-                             max((k for k in res if not k.startswith('nyc/')), key=lambda k: len(res[k])),
-                             max(res, key=lambda k: sum(d[5] == 'person' for d in res[k]))]
-    for i, k in enumerate(picks, 1):
-        render(os.path.join(ROOT, 'cctv', k), res[k], os.path.join(HERE, f'det_check_{i}.jpg')); print('render', i, k, len(res[k]))

intro-sequence/tools/live/fetch_adsb.py

@@ -1,72 +0,0 @@
-"""Poll live ADS-B (adsb.lol, fallback adsb.fi) around each scene 3x, 20 s apart.
-Writes city/<slug>/air.json with latest sample per aircraft + short track history."""
-import json, os, sys, time, requests
-sys.path.insert(0, os.path.dirname(__file__))
-from common import SCENES, enu
-ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
-RAD = {'nyc': 25, 'lax': 25, 'bragg': 25, 'boston': 20}
-HELI_TYPES = {'EC35','EC30','EC45','EC55','EC20','EC25','EC75','EC13','EC40','AS50','AS55','AS65','AS32','AS3B','H125','H130','H135','H145','H160','H175','B06','B06T','B407','B412','B427','B429','B430','B47G','B505','B212','B222','B230','B105','BK17','R22','R44','R66','S76','S92','S61','S64','S70','H60','UH60','MH60','HH60','H47','CH47','H53','A109','A119','A139','A169','A189','AW09','MI8','MI17','UH1','UH1Y','AH1','AH64','H64','V22','MV22','CABR','G2CA','EN28','EN48','H269','H500','MD52','MD60','NH90','LYNX','PUMA','GAZL','EH10','H1','B505'}
-H = {'User-Agent': 'gods-eye-view-intro/1.0 (film research)'}
-def fetch(slug):
-    lat, lon, _ = SCENES[slug]; nm = RAD[slug]
-    for url, key in ((f'https://api.adsb.lol/v2/point/{lat}/{lon}/{nm}', 'ac'),
-                     (f'https://opendata.adsb.fi/api/v2/lat/{lat}/lon/{lon}/dist/{nm}', 'aircraft')):
-        try:
-            r = requests.get(url, headers=H, timeout=20); r.raise_for_status(); j = r.json()
-            ac = j.get('ac') or j.get('aircraft') or []
-            now = j.get('now') or time.time() * 1000
-            return url, now / 1000 if now > 1e11 else now, ac
-        except Exception as e:
-            print(slug, 'fail', url, e, file=sys.stderr)
-    return None, time.time(), []
-def num(v):
-    try: return float(v)
-    except Exception: return None
-def conv(slug, a):
-    lat, lon = num(a.get('lat')), num(a.get('lon'))
-    if lat is None or lon is None:
-        lp = a.get('lastPosition') or {}
-        lat, lon = num(lp.get('lat')), num(lp.get('lon'))
-    if lat is None: return None
-    x, y = enu(slug, lat, lon)
-    ab = a.get('alt_baro')
-    if ab == 'ground': alt = 0.0
-    else:
-        v = num(ab)
-        if v is None: v = num(a.get('alt_geom'))
-        alt = round(v * 0.3048, 1) if v is not None else None
-    trk = num(a.get('track')); trk = num(a.get('true_heading')) if trk is None else trk
-    gs = num(a.get('gs')); gs = round(gs * 0.514444, 1) if gs is not None else None
-    vr = num(a.get('baro_rate')); vr = num(a.get('geom_rate')) if vr is None else vr
-    vr = round(vr * 0.00508, 2) if vr is not None else None
-    return [x, y, alt, trk, gs, vr, (a.get('flight') or '').strip(), a.get('t') or '', a.get('category') or '']
-def main():
-    polls = {s: [] for s in SCENES}
-    for i in range(3):
-        t0 = time.time()
-        for s in SCENES:
-            url, t, ac = fetch(s); polls[s].append((url, t, ac)); print(i, s, len(ac), url, flush=True)
-        if i < 2: time.sleep(max(0, 20 - (time.time() - t0)))
-    summary = {}
-    for s in SCENES:
-        latest, tracks, src = {}, {}, set()
-        tlast = 0
-        for url, t, ac in polls[s]:
-            if url: src.add(url.split('/')[2])
-            tlast = max(tlast, t)
-            for a in ac:
-                hx = a.get('hex'); row = conv(s, a)
-                if not hx or row is None: continue
-                if (num(a.get('seen_pos')) or 0) > 60: continue
-                latest[hx] = row
-                tr = tracks.setdefault(hx, [])
-                p = [row[0], row[1], row[2]]
-                if not tr or tr[-1][:2] != p[:2]: tr.append(p)
-        heli = [h for h, r in latest.items() if r[8] == 'A7' or r[7] in HELI_TYPES]
-        out = {'t': int(tlast), 'source': sorted(src), 'radius_nm': RAD[s], 'hex': list(latest.keys()),
-               'a': list(latest.values()), 'tracks': {h: v for h, v in tracks.items() if len(v) > 1}}
-        json.dump(out, open(os.path.join(ROOT, 'city', s, 'air.json'), 'w'), separators=(',', ':'))
-        summary[s] = {'aircraft': len(latest), 'with_track': len(out['tracks']), 'heli': len(heli),
-                      'heli_list': [[latest[h][6], latest[h][7], latest[h][8], latest[h][2]] for h in heli]}
-    print(json.dumps(summary, indent=1))
-if __name__ == '__main__': main()