engine.ground draws sets of polygons (with holes), discs, cells and
corridors draped on the surface, with fill and outline colours, order and
picks, written in bulk and committed. Every engine implements it:
- Cesium batches each set into one GroundPrimitive for fills and one
GroundPolylinePrimitive for outlines and pixel corridors, classified
against terrain and 3D tiles; sets that are not pickable stay out of the
pick pass.
- Navara draws them in one screen pass after tone mapping that finds each
pixel's ground from the scene depth and tests the items in its screen
cell; long rings are split into edge bins. Measured at Dubai against
SDK vector layers, the pass matched Cesium's frame time up to 10,000
polygons with a few megabytes instead of 70 to 146, drew exact colours
and outlines, and hid reliably across an engine switch, where vector
layers hidden with update({ show: false }) never hid. Dense corridors
remain its limit (10,000 cost 135 ms a frame).
- The fake engine keeps the same registry and CPU picks.
The contract suite checks it on both engines (Cesium 66/66, Navara 69/69).
Earthquakes and fire perimeters have unwired ground prototypes whose
drawing matches today's Cesium one (0.998 on Cesium, 0.976 on Navara).
docs/GLOBE-PRIMITIVES.md describes the primitives and when to use each.
- Radio: stations, clusters, the selection and its brackets are point
and sprite sets; clusters come from the layer's engine-neutral screen
clusterer with Cesium's EntityCluster rules, and clicks go through the
selection dispatcher. One style module holds the sizes and colours.
- Transit: vehicles are two sprite sets from an up-front atlas, rotated
with Cesium's projected-rotation maths. The selected vehicle's trail is
engine.lines in two lanes and 29 age bands, so trails are no longer
draped over terrain until the contract has ground corridors. The
Cesium contact trail renderer and its re-export go.
- CCTV: markers, wedges, the plane outline and the calibration gizmo
(rings, arrows, handles, drags through engine.input) draw on the
contract. The textured monitor plane and the viewshed volume, which no
primitive expresses yet, sit behind one seam, render/meshes.js, with a
Cesium backend and a Navara backend the Navara mode passes in.
Known gaps against Cesium: transit trails are not draped, and the
surveillance-lens click correction runs only where the engine reports
its style stage (Navara).
Coupling: layer renderer lines fall from 2638/8735 to 1636/6953
(Cesium/Navara), ScreenSpaceEventHandler files from 15 to 10, `viewer`
lines from 2014 to 1901.
Cesium follows a display's sprite through a proxy Entity that mirrors the
native's readout fields, and gevRestoring was not one of them. A follow
the flights layer resumed on attach therefore read as new navigation to
the shell's tracked-entity watcher, which made the share restore of the
same attach count itself superseded and clear the selection. That is why
the aircraft was lost after a failed switch's rollback onto Cesium, and
after the retry. The proxy now shows the restoring mark while its follow
starts.
The flights renderer test runs a detach, a failed attach to a candidate,
the rollback and a retry on headless Cesium engines, and checks that the
aircraft stays tracked and no navigation is stamped.
Each layer now has one render/display.js on the globe contract, the same
factory on both engines; its render/cesium* and render/navara* files go.
Cesium's behaviour is the reference, and the logic that was written twice
is written once:
- AIS vessels: atlas chevrons and engine.lines trails. The display
registers the gev-trail pick claim itself and its trailing visibility
pass now also runs on Navara.
- Satellites: point banks per look, orbit rings as lines turned by their
model matrix, and selection and follow through engine.camera.follow.
The emulated _viewer is gone, and the tracked readout republishes card
text on Navara too.
- Space Missions: dots, reticle, trajectories and tactical orbits as
movers and lines. The layer keeps its own records instead of Entities
and DataSources, and camera work goes through engine.camera. Clicks go
through the selection dispatcher, and hover keeps Cesium's throttle. The
pad zone is its rim only: the contract has no surface fill yet.
- ALPR, bikeshare and OSM Places: one display and, for bikeshare, one
style module each; clicks through engine.input, no
ScreenSpaceEventHandler or EntityCluster. ALPR keeps Navara's horizon
cull, and OSM Places points sample the surface where Cesium clamped them.
Coupling: layer renderer lines fall from 4546/11106 to 2638/8735
(Cesium/Navara), `viewer` lines from 2209 to 2014, ScreenSpaceEventHandler
files from 20 to 15.
The layers that still had one Cesium and one Navara implementation, or
drew on Cesium only, now draw through engine.movers, engine.lines and
engine.camera on both engines, and application code holds the engine
instead of guessing it from a viewer.
- Aircraft family: flights, military and local ADS-B share one display
(src/layers/aircraft/render/display.js). The Cesium and Navara
renderers are gone. Where they differed, the display follows Cesium:
- attach and visibility tracking, live disableDepthTestDistance
changes, the tracked glyph's distance scale, model ids that change,
local ADS-B markers hidden until shown and its UAT ring as a point;
- the trail head's hidden alpha is 0.45, the contract's
depthFailAlpha scaled by the head's 0.9.
The tracked glyph stays over the fleet, as on Navara. The movers
contract reports readiness per model and reads model axes as the
glTF's own on every engine. Cesium's follow takes any native target
through a proxy entity in the ENU frame and mirrors its readout fields.
- Wildlife Sightings draws badges and the density glow as sprite sets
and its privacy cells as line outlines (no fill yet). It takes clicks
from engine.input and its card anchors to the engine's canvas and
camera, so the layer is in both engines' catalogs again and a switch
keeps the session's layer set.
- Cockpit: cockpitHost takes the engine only. The ridden aircraft is the
engine follow's target, hidden through its sprite; only the Cesium
Viewer's stock double-click is still routed around.
- About forty camera, navigation, share-link, HUD, voice, detection and
layer-lifecycle callers take the engine. isGlobeEngine and
engineFromViewer calls outside src/globe fall from 51 to 14.
The coupling baseline drops accordingly: layer renderer lines from
5239/12331 to 4546/11106 (Cesium/Navara), `viewer` lines from 2424 to
2209, Cesium-importing files from 69 to 66.
What only one engine has now travels with the engine instead of a
WeakMap in navaraMode.js: engine.extensions.navara holds Navara's view,
its SDK classes and the daylight reset, engine.extensions.cesium the
Cesium viewer. The contract documents the field as outside the contract,
and the coupling report counts its reads outside src/globe in place of
the navaraViews reads (27, unchanged).
Layers are to draw through the globe contract on both engines, so Cesium
gets back the movers and lines removed as unused:
- engine.movers draws sprite sets as a BillboardCollection (atlas cells
cropped once per set), point sets as a PointPrimitiveCollection and
model sets as one Model per instance. depthTest, disableWithinM, order,
scaleByDistance, colorBlend, unlit and minimumPixelSize follow the
contract; a model's matrix is written in place, so instances no longer
share one scratch matrix.
- engine.lines draws each line as a polyline Primitive with width in CSS
px, geodesic arcs, dashes, the tactical and arrow materials,
depthFailAlpha and modelMatrix; a rebuild keeps its show, matrix,
colour and place in order.
- The picker returns the pickId a layer wrote last, skips sets that are
not pickable and instances behind the horizon, and falls through to
what lies under them. Surface samples can exclude mover sets again.
movers and lines move from the optional capabilities into the required
contract shape, and the contract suite always runs their checks.
Main's camera, voice, Cockpit and layer work now runs on the globe
contract where this branch draws through it:
- The voice tilt to an angle, its pivot about the place under the
crosshair and the frame limit from orbit run through the camera rig;
src/globeInView.js measures a camera pose with src/geo instead of a
Cesium camera. The free-look height limit and the globe-in-view
recovery stay Cesium-only for now.
- Cockpit takes main's own-layer entry rule. Double-clicking the
followed track goes through cockpitHost.routeDoubleClick, so it works
on both engines.
- Space Missions' failed-entry rollback and GhostMaps' age filter run
in the engine-neutral layer code. On Cesium an expired report is
dropped in place; on Navara its product is redrawn.
- Wildlife Sightings joins the catalog Cesium-only: Navara leaves it
out, and the shell builds its card only for the real layer, so a
Navara page no longer fails to start on its stand-in.
- One instruction sentence is shorter, which keeps the Realtime prompt
within its 55,500-character budget with the Sentinel-2 basemap.
createTrafficSource({ roadModes }) lets a host offer a subset of the TomTom,
OSM and Hybrid road modes (all three by default). Without OSM the layer never
draws simulated roads, and a single mode shows no road chip.
While flow is live the Street Traffic row offers Lines (every road with flow
as a steady green/amber/red line, from the heat-line renderer) and Dots (the
moving dots), saved in layer state and share links. Defaults: Lines off,
Dots on.
- releaseCameraOwnership marks the camera released before stopping, so a
flight navigation asked to preserve survives; exit also releases it, so an
inactive layer never cancels another owner's flight.
- The failure toast names the mission index only when its error is from the
current Context attempt (stats.errorAt), not an earlier one.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Review fixes on top of #1578:
- Exiting Space Missions cancels the layer's own camera flights again (entry,
roster preview, mission focus); only a flight navigation started after
releaseCameraOwnership() runs on.
- A failed first index load says so: "Space Missions unavailable: the
mission index could not load. Try again later." on both the Context and
Data Layers routes, instead of a generic transition toast. Translated.
- Regression tests for both; docs and changelog describe the real feedback.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Review fixes on top of #1601:
- Only redirect a provider the params switch on to a keyless source, so a
filter-only setParams (360°, SINCE) no longer moves an explicitly chosen
keyless Mapillary to KartaView.
- Keyless QA gate: assert the new KartaView default and that the Mapillary
chip explains its key instead of switching (it used to expect KEY REQUIRED).
- Tests: Graph-proxy keyReady, filter-only updates; shared test helper.
- README and CURRENT-STATE describe the keyless default.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Keep the open card across a widened reload only when its index still
holds the same report; the server may answer a pinned version with newer
bytes.
- Narrowing to a window the loaded data already covers clears a failed
wider reload, so the row no longer stays in error.
- Label the every-age option "All" (contextual) so the six-option switch
fits the row in every locale; tooltip and info line keep "All markers".
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Review fixes on top of #1528:
- Narrowing the age window only removes markers; a product loaded with a
narrower window is reloaded when the window widens again. Fixes markers
missing after 7d -> 1d -> 7d and avoids reparsing every KMZ on narrowing.
- A wider window over the same edition keeps the open report card.
- Date-only event dates cover their whole UTC day, so 1d still shows
yesterday's reports.
- The age options are one labelled "Event age" radio switch (row
`segmented` control, as FIRMS confidence) instead of toggle chips mixed
with the product chips.
- Un-nest the per-product age test; QA compares data-source counts with the
live defaults instead of a hard-coded 2.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Publish classificationName next to the raw NHC code; unknown codes stay
unexpanded.
- Publish staleCacheFetchedAt only while the proxy serves its cache.
- Touch the shared store on clear only after this layer published, so a
feed failure no longer evicts another layer's dangling selection.
- Drop the unreachable no-storm branch and the unused return value.
- Tests: split the heading fixture into due north and stationary, cover
the unavailable and failure paths with the real store, and check that
clear/disable leave another layer's selection alone; fold the fake-store
test into the real-store one.
Cesium lifts a camera below its globe every frame, between the cockpit's 20 Hz updates, so an eye placed under the terrain (an aircraft reading below it on a cold floor cell) jumped up and down. The cockpit now also keeps its eye above the engine's own surface. Navara's ground floor stands aside while the camera inputs are off, since the cockpit places the camera itself.
The data refresh is committed and its provenance (extract, timestamp, MD5,
filter) stays in the dataset README. The script needed osmium-tool and could
only re-verify while Geofabrik still listed that extract, so it goes with its
test.
Navara now draws at CSS pixels without MSAA, like Cesium; Navara HD keeps the device pixel ratio and MSAA 4. Only one Navara variant is ever kept. A parked engine is released after three minutes and its WebGL context is lost. Three leaks that kept a released Navara alive are fixed, the canvas context drops its unused antialias buffer, cloud shadows use two 256 px cascades, and the tile cache is budgeted from the screen buffers.
Keyless GTFS-Realtime feed published by ZDiTM Szczecin under CC0 1.0.
Speeds are m/s (checked against vehicle movement), the file refreshes about
every 20 s, and the feed carries no route ids, so vehicles take the default
bus mode.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
A failed flow tile now carries the server's reason. A hosted deployment that limits each account answers USAGE_LIMIT_REACHED or RATE_LIMITED, which the traffic panel labels as the monthly allowance or a rate limit; a 503 with another reason reads as the traffic service being unavailable, not a missing key. The local proxy's no_key and daily budget labels are unchanged.
German Khokhlov