startPageLocale, followPageLocale and switchLocale start, follow and switch
the page's language as the standalone application and the globe picker do,
for an application that offers the language elsewhere and passes
localePicker: false. The standalone application uses them.
Selecting a vessel asks Open Vessel Photos (a free, keyless API) for its
photo by MMSI, once per MMSI. The CONTACTS view shows it under the vessel's
name and MMSI with the photographer, the photo's open licence and a link to
the vessel's page; only images on Open Vessel Photos' own host are shown, and
an answer about another MMSI is no photo. The vessel source exposes the lookup
as getEnrichment({kind: 'photo'}) and fetchOpenVesselPhoto for applications
with their own vessel source.
The activation probe raycast only the photoreal tiles. On a globe map the ray
missed, or ran on through the Earth and met a primitive thousands of
kilometres away, and the monitor plane stood at the camera's full range:
about a kilometre wide and hundreds of metres up. A hit at or beyond the range
now counts as none, and on a globe map the plane also clamps short of the
globe's terrain along the axis, or flat ground at the mount's ground while
that terrain is still loading, whichever is nearer.
The preview settled when the image had loaded, so the panel's <img> took the
src while it was still decoding and then faded in over 180 ms: every camera
click lingered on an empty box. The preview now settles once the frame is
decoded (a rejected decode still shows the loaded frame, and a decode that
never settles shows it after one second), and the fade is gone.
The points-of-interest keys (Q/W/E/R/T while a city is expanded) are a
second bare-key document listener, and it did not look at modifiers
either: Alt+R or a delivered Ctrl+R picked the fourth POI and flew the
camera there. It now leaves Cmd, Ctrl and Alt chords to the browser like
the application shortcuts; Shift still counts as the key. The docs and
the changelog entry say so.
A failed request for the view in between left its error set, and the
early return for the already drawn view never cleared it, so the drawn
features showed with an error state.
The browser shared one partition-index build per entry but ran it under
the first view's signal. A camera move cancels the old view before the
next one starts, so the next view was handed the same build, already
cancelled, and drew nothing (the view layer takes an AbortError for its
own cancellation) until the camera moved again. EPC hit this on its
first view after any quick move. The build now belongs to no view: each
view stops waiting on its own signal, and the build runs on for the next
view and every view after it.
When Remove switched a layer off and then its destroy failed, the
manager published no visibility change, so the selection still listed
the entry as on: the link shared it as on and a reload restored it on
while its row read off. A failed Remove now drops the entry from what is
on and remembered whenever its layer ended up off.
A share's entries joined the library after the stored ones, and the
selection kept its first 64, so a link opened into a full library never
showed what it shared and the next hash write dropped its lib=. Now the
oldest entries the share leaves off make room for it, and their layers
are removed with them.
Browse counted an entry as added only while its layer was registered,
but an entry this instance cannot serve (switched off by the operator,
or its server unreachable) stayed in the selection and held one of the
64 places. A library full of them looked empty and refused every Add.
Such entries now show as added, so they can be removed one by one or
with Remove all.
The live refresh had three faults. Its data age counted from when a
fetch finished, so with the manager ticking every cacheSeconds the next
tick found the data just short of due and data refreshed every other
tick. It switched the layer off and on to redraw, which removed the old
features before the new ones were built, closed an open feature card and,
if the rebuild failed, left the layer on but empty. And the tick the
manager runs right after enable refetched after a failed first load, so
a second failure switched the layer off instead of showing UNAVAILABLE.
The local GeoJSON layer gains replaceFeatures(): it builds the new set
while the old one stays drawn, removes the old source only once the new
one is in the scene, keeps a selected feature that is still in the new
set (same id, or same place and label), and on a failed rebuild puts the
old features, records and selection back and rejects. The library's
refresh uses it, counts age from the request, allows a little slack on
the tick, and does nothing until a first load has succeeded.
The core layer lifecycle imported the whole Data Library manifest
contract only to check the lib- prefix, so the layer-lifecycle package
owned a feature module. The namespace rule (prefix, entry id pattern,
the two id helpers) now lives in src/data/libraryLayerIds.js, which the
lifecycle owns; the manifest contract imports and re-exports it, so
library callers are unchanged.
Imagery outlines fetched Natural Earth's 1:50m countries (about 3 MB)
from the natural-earth-vector repository's master branch on GitHub at
run time: a moving, rate-limited source whose failures silently removed
the outlines. Core already ships the pinned 1:10m countries pack, so
the outlines now read that, once, the first time an outline needs it.
The share encoder wrote only registered entries. Until availability
loaded nothing was registered, so any hash write in the meantime (a
camera move during start-up) deleted lib= from the address bar, and an
entry this instance could not serve (its proxy unreachable) was dropped
for good: copying the link or reloading lost those entries. The URL now
carries what the page opened with until the library starts, and every
entry that is on afterwards, served here or not.
Every restore wrote the selection it applied to browser storage, so
opening a link that switched no library entry on stored every saved
entry as off, and the next bare visit restored them off. Core layer
state never writes a recipient's preferences from a share. The library
now keeps what is remembered as on apart from what a share switches on
for the session: a share's entries still join the library, but only a
local restore and the viewer's own choices change what is remembered.
Remove dropped an entry from the selection and reported success even
when the manager could not disable or destroy its layer, leaving a
registered, possibly visible layer that Browse, share links and saved
state no longer knew. Remove now keeps the entry and reports failure,
so its row and Remove all still reach it and a later Remove can retry.
Add registered and switched on an entry before the selection was cut to
its first 64, so a 65th was dropped from the selection but stayed on:
Browse showed it as not added, share links left it out and Remove all
missed it. Start-up registered a share's entries the same way past the
cap. Add now refuses an entry a full library cannot keep, and start-up
registers only what the selection keeps.
Paging stopped once maxFeatures were read before it noted that the
upstream had more, so a page holding exactly the cap with
exceededTransferLimit set read as the whole dataset. FEMA USA
Structures (2,000 features, one page) never showed PARTIAL in a dense
view. Stopping at the cap or the last page with more upstream now marks
the load truncated.
The browser's partition index kept whether it was complete only to
schedule a rebuild and handed the partitions on without it, so a view
counted unread partitions from an index that might be missing some and
could read as complete, even empty, over an area it had never indexed.
A view over an incomplete index now reads PARTIAL until a rebuild
completes.
Only a failed fetch() marked a footer read as worth retrying. A body cut
off after its headers arrived (a reset, the proxy's 20-second timeout)
was taken for an unparseable file: the partition was left out and the
index still read as complete, so the server cached it without that
partition for the entry's cacheSeconds (24 hours for EPC). Such a read
is now retried like any fetch failure; an oversized body is still final.
Moving from view A to B started B's request; moving back to A before it
finished returned early because A was already drawn, so B's request ran
on and its features replaced A's while the camera was at A. Returning to
the drawn view now cancels the request in between.
A share restore skipped every entry whose settled state already matched
the share, but a layer still switching on for an earlier share reads as
off until it settles. Opening a second share in that window left the
first share's layer to come on anyway. The restore now compares with the
manager's effective visibility (the newest request), so the newer share
supersedes the earlier one.
A dataset layer loaded its features once and kept them until it was
removed: the parsed set survives disable/enable, so NWS alerts, GDACS and
EONET showed what they held when first switched on for the whole session.
A library dataset now asks the manager for a refresh every cacheSeconds.
Once its data is that old it loads again, and swaps the new set in only
when it is ready, so the old features stay drawn while the request runs
and stay if it fails. An enable after cacheSeconds also loads afresh.
Disable and destroy cancel a refresh in flight.
Zoomed out, a hotspot's reports give way to its beacon, and the cards an application draws through pictureCards went with them; they came back only once the camera had stopped after zooming in. The cards now come from every report the close-up view would mark, at any height; the layer's own markers and beacons are unchanged.
The browser stamped every trip-updates answer as just read. While an
operator's feed fails, the rail proxy replays its last good copy for up to
ten minutes, and a cached copy can be a TTL old, so those delays never
reached RAIL_UPDATES_MAX_AGE_MS and a selected train's card showed them as
current. Delays now take their age from the snapshot's fetchedAt (capped
at now), as positions do in ingestion.js, so they stop applying 75 s after
the server last read the operator.
TaM publishes km/h where GTFS-Realtime asks m/s, and the Transit layer's
entry for the same feed already sets speedUnit: 'km/h'. The Rail entry did
not, so the proxy passed the readings through and the card multiplied them
by 3.6 again: a tram at 30 km/h read about 108 km/h. A registry test now
requires a Rail feed that Transit also reads to declare the same unit.
createNewsLayer takes a pictureCards(cards, { selectedId }) function; createApplicationCatalog passes it through newsOptions. With it, the layer paints no picture cards of its own and hands the function one card per pictured event on the map, most severe then newest first, with the selected report's id; it hands no cards when the layer turns off.
GDELT exports are read in parallel, so two reports with the same time
arrived in whichever order their exports finished, and the feed test that
pages through them failed now and then. Same-time reports now order by
most mentions, then by id.
A weather feed may also be a frame source. With an optional
getFrameImage({ product, time, size, bbox, signal }) the layers take
whole-extent images, detail windows and the global mosaic from it; with an
optional getFrameTile({ product, time, z, x, y, size, signal }) regional
tiles and their prefetch come from it, null being a transparent tile. Pixels
may be an ImageBitmap, ImageData, canvas or VideoFrame of exactly the
requested size; the layer draws them once and closes them. Cancellation
reaches the source, and a feed without these methods reads the image and
tile routes as before.
AIS Vessels are keyed by the id their live source gives, with the MMSI as an
attribute: an MMSI can be shared, spoofed or reused, so two vessels with one
MMSI are now two vessels. Looking a vessel up or selecting it by MMSI still
finds it.
A share link made while a vessel is selected opens that vessel. A UUID vessel
id travels as 16 bytes in a new thing field (13). A shared thing that is not
reporting now says so in a sentence per kind, with its id (ICAO, NORAD, MMSI
or vessel UUID) on a second line.
A live source may now declare a timeline: it can answer a snapshot at a
given time (source.timeline = { coverage(), stepMs, subscribe? }, read by
readSnapshotTimeline). While such a layer is on it follows the world clock
and registers the coverage. At the live edge it polls exactly as before;
away from it the layer asks for getSnapshot({ ...query, atMs }) at the step
at or before the clock time and shows that snapshot instead of polling.
src/time/snapshotTimeline.js owns the following: a seek, time going
backwards or leaving live replaces every contact with the snapshot at the
new time (play waits on it, for at most 8 s); playing on keeps one
snapshot ahead and gates play on it, applying those snapshots as polls so
contacts move smoothly; outside coverage the layer is empty; back at live
it is cleared and polls at once. One load at a time, and a load the
source drops for a newer one is not a failure.
While following, aircraft are drawn at the clock time with no render
delay, records and absences are judged at the clock, track requests carry
atMs, and vessels move between fixes along the great circle. The world
clock counts jumps (seeks and returns to live) in getState().
A source with no timeline never follows the clock, and every layer stays
live, unchanged.
The radio and push-to-talk helpers shared by both voice providers now pass
English catalog text, and the OpenAI controller words its detail when shown,
like the Gemini session. A token failure without a server message carries
its status as sourceParams, so it is worded again with the number. The docs
say sourceDetail is the message as given, catalog text when it is the app's
own.
The Gemini session translated each status and error message once, when it
happened, so after a language change the voice control kept showing it in
the old language. The state event now also carries the English catalog text
as sourceDetail, and the control words it when shown. The local server's
known token errors stay catalog text until then instead of being translated
on arrival.
The Gemini token route now answers a missing key with code API_KEY_MISSING,
the session carries it to the error state as missingKey, and the voice
control hides "Check microphone permission" for that error, as it already
does for OpenAI. The OpenAI controller sends the same flag, so the shared
control and the controller agree whichever updates last.
The voice error was matched against the translated key message to decide
whether to show the microphone hint, so switching language brought the hint
back and left the message in the old language. The error now carries a
missing-key flag into the status, which words the message at render time.
A controller test covers the language switch, and CURRENT-STATE.md documents
the keyless voice response.
The decision no longer reports not-entity-context or channel-closed, which
its only caller rules out first, nor pointer-scale-not-useful, which the
crop path already checks and logs. A closed channel returns before any
record, as on main. The crop decision is pointer-crop-eligible, since the
crop checks after it decide whether the pointer is on ground, and a sender
called on a closed channel logs channel-lost.
In a dense downtown view from about 400 m up, the occlusion margin of
max(3 m, 2% of the range) came to 14 to 20 m, so a wall, awning, tree or
lower facade standing 10 to 20 m in front of a street was read as the
road itself: the vehicle's dot was hidden by the scene, but its bracket and
callout were still drawn. Checked against scene.pickPosition in one such
view, 18 of 470 vehicles in frame fell in that band.
The margin now depends on how steeply the camera looks down on the
contact. A point on the line of sight s metres in front of a vehicle
stands s * sin(elevation) above it, so a surface there hides the vehicle
once that rise passes 2 m. The margin stays at least 3 m and at most 2%
of the range, so grazing and street-level views are unchanged. In the
same views no vehicle with the drawn surface within 3 m in front of it
(its own road) is newly hidden.
From the review of the first change:
- A contact back in view after longer than a retest interval is held back
and retested like a new one, instead of being drawn from an answer
given before it left the view. It gets a fresh record, so a test still
in flight from before cannot end the hold-back either.
- The hold-back for a contact's first answer stretches with the retest
pace when a crowded view slows it.
- A batch whose control point failed no longer counts as a first answer.
- An unknown log-depth flag reads as "no depth" rather than as standard
depth, which would have put every surface in front of every contact.
- A shader that fails to build leaves no shader behind and is not built
again on the same context.
The detection overlay only hid a contact behind the Earth's curve, so a
street vehicle behind or under a building, a 3D tile or a hill still had
its bracket and "VEH-nnnn" callout painted over that geometry, while its
own dot was depth-tested and correctly hidden.
A contact a layer marks `depthTested: true` (only Street Traffic does) is
now tested against the depth the scene drew and left out of the overlay
while a drawn surface stands in front of it by more than max(3 m, 2% of
its range). Other layers are untouched: their markers are drawn over the
scene on purpose.
The test runs on the GPU and never waits for it. Each tested contact is
one point drawn inside an occlusion query; the vertex shader looks up the
frame's packed pick depth at the contact's pixel, decodes it and drops the
point when the surface is nearer than the contact's threshold. Query
results are collected on later frames. Reading depth back was measured
and rejected: `scene.pickPosition` per contact costs 0.2 to 1.4 ms each,
and Chromium answers `getBufferSubData` with a round trip to its GPU
process even behind a signalled sync object (1.5 ms on a quiet machine,
15 to 25 ms on a busy one).
- Contacts are retested every 100 to 200 ms, spread across frames, at
most 256 a frame; with more in view the pace stretches so none starves.
- Hiding is immediate. A hidden contact returns 600 ms after its last
"hidden" answer, so one on a silhouette edge does not blink, and a
contact new to the view is held back until its first answer (400 ms at
most), so orbiting does not flash brackets behind buildings.
- A callout whose contact goes behind something is dropped at once, not
carried to the next solve and not faded out on the facade.
- These times run on painted frames, so a hidden tab does not expire them.
- A control point in every batch must draw; if it does not, the batch is
ignored and after three the probe stands down for ten seconds. With no
pick depth (2D, Columbus view, depth picking off) nothing is hidden.
A WebGL 1 context reads depth back synchronously about 8 times a second.
The renderer internals this depends on are read in one function,
`readSceneDepthSource`, with the engine version they were checked against.
- layerStateTokenLedger.test: the retired-token reuse case now offers the
retired token (02) to the newcomer, not News's 00.
- he.json: the catalog's singular imperative, {count} first in the plural,
Wikidata read as one source, and smoother legend and info text.
- layerManifest: News after Shipwrecks, so the prompt-budget comment stays
next to the entries it explains.
- CURRENT-STATE: Prettier-formatted (table column, blank line before a heading).
Main added the News layer at the same places: both layers are kept in the
layer names, panel order (News stays last of Events), standalone sources,
voice manifest, credits, DATA_SOURCES and the CURRENT-STATE table. News took
share-link token 00 first, so Shipwrecks moves to 01 (ledger, registry,
CURRENT-STATE and the token tests). The catalog now has 40 layers and the
share-link registry 38. Shipwreck strings are added to the new Hebrew
catalog; the other catalogs keep both sides' strings.
Removing one source's wrecks on the page split merged records: a wreck both
sources list is one Wikidata record carrying EMODnet facts, so expiring
Wikidata dropped wrecks EMODnet still had, and expiring EMODnet kept its
facts. The page now keeps every shown wreck, marked stale, until the newest
source passes the limit, then clears them all. Adds a source test for the
reported ages and limit.
The page compared the proxy's fetchedAt with its own clock, so a skewed
browser clock cleared or kept wrecks wrongly; a snapshot without a timestamp
never expired; and one old source cleared the other's fresh wrecks. The proxy
now reports each source's age on its own clock and its seven-day limit; the
page turns them into per-source deadlines when the snapshot arrives (seven
days from arrival when no age is given) and, on a failed refresh, removes only
the sources past theirs. A refused short refresh is logged.
CURRENT-STATE said each source is asked at most once a day; a failed source
is retried after 15 minutes. It now also covers refused short refreshes and
the page clearing expired wrecks, and its two shipwreck paragraphs are
rewrapped. The card's comment no longer says the records carry no names.
- A source without a version (undefined, not null) compared as unchanged, so
an injected source's new snapshots were never drawn.
- When the page could not refresh (the proxy answers 502 once both sources
are past seven days), it kept showing the old wrecks as fresh. They are now
marked stale, and removed once older than the proxy's own seven-day limit.
A 200 answer that was valid but cut short (30 Wikidata wrecks instead of
about 1,450) replaced the last good set for a day. It now counts as a failed
refresh: the old records are served as stale and the source is retried after
15 minutes; once the old set is past seven days, the new one is taken.
- The legend counted each era twice, scanning every record eight times per
row refresh; it now counts once.
- Each year picker listed every year from the oldest dated wreck (well over
a thousand entries); it lists the years that have a wreck, plus the chosen
ends.
- Labels fell back to Portuguese and links to Portuguese Wikipedia while the
app ships 11 locales: labels now fall back through the app's languages
after English, and a wreck with no English article links its Wikidata
item, which lists the article in every language.
DATA_SOURCES and CURRENT-STATE said text naming people is dropped. The filter
drops text with a title or role word (Mr, captain, owner, crew, reported by);
a bare name with none of them still passes. The docs and the code comment
now say so.
Air accidents (#1584) is not merged, so comments, the changelog fragment and
CURRENT-STATE no longer explain the shipwrecks markers, card and picker by
it; the row-range test fixture is the shipwrecks row. CURRENT-STATE now says
the markers are one billboard collection and the period is stored swapped.
They were listed as owned by the ghostmaps and ghostmaps-source packages,
which they are not part of; ghostmaps-source is meant to stay free of
rendering code, and shipwrecks/index.js imports Cesium. The app groups that
own every layer keep them.
A period set as 1950 to 1900 (a link or the voice tool) showed as 1900–1950
but stayed reversed, so changing "From" to 1920 gave 1920 to 1900, shown as
1900–1920: the end the reader did not touch moved.
- The ~8,000 markers were one Cesium entity each; they are now one
BillboardCollection (as FIRMS, vessels and wildlife sightings do), ordered
at the bottom of the shared sprite stack so moving traffic draws over it.
- eyeOffset.z was the death toll in metres, so a 1,500-death wreck's marker
sat 1.5 km toward the camera and clipped or drifted when close. It is gone;
markers are added by rising toll, so a bigger toll still draws on top.
- The page asks every 6 h but the proxy changes data at most daily: the proxy
now sends a version that changes with either source's data, and the layer
rebuilds only when it does.
- Adds a controller test: enable/disable, teardown, draw order, unchanged
snapshots, a late response after turning off, and the period closing an
open card.
A refresh with one source down (or Wikidata answering 200 with no results)
was cached as the day's snapshot, replacing the full set; and once the
snapshot was a day old, every request after a failure fetched both sources
again. Each source now keeps its own last good records, served as stale for
up to seven days, and a source that failed is not asked again for 15 minutes,
even when there is no data yet. A Wikidata answer without results, or with no
wreck in it, counts as a failure.
The query read P576 through wdt:, which carries no precision, and a missing
precision counted as a day. It now reads the best-rank statement's value with
wikibase:timePrecision, and a value without a precision is trusted to the
year only. Against the live query service the new query takes 23 s and dates
16 more wrecks while every date the old one gave is unchanged.
parseYear took the minus sign of -0299 as a separator, so a wreck from 300 BC
showed as year 300, sat at AD 300 in the period picker and stretched its
range. Years before AD 100 now keep their year as text ("300 BC", "AD 50")
and count as ancient, like EMODnet's period-dated wrecks; the query service's
XSD 1.1 years (0000 is 1 BC) are converted. Merging records now carries that
text with the date, and coarser-than-year precisions give no date.
The exclusion tested the provenance after it was cut to 80 characters, so a
long source list ending in wrecksite.eu kept the row, and a row whose only
trace was a wrecksite.eu page link was kept too. Both raw values are now
checked before anything is cut.
When the whole feed backs off, no poll counts a miss, so the tracked
aircraft read STALE at full brightness while no newer position came in.
It now takes the same stale fade as a missed update, in the flights and
military layers.
The route check allowed 200 km off the great circle between the airports, so a
coast-to-coast flight routed a few hundred kilometres around weather lost its
origin and destination (JFK–SFO over Kansas, 384 km south). The tolerance is
now 200 km or 15% of the route's length, whichever is larger: 623 km for
JFK–SFO, and still 200 km for a short hop, so a wrong leg stays hidden.
The trail no longer joins a day of history into one line. It lifts the pen
across a gap of more than 48 minutes, an implied speed over 1,500 kt, or a
report without altitude (a parked aircraft within 0.1 nm for under 3 h stays
joined), and every history point is kept as its own segment. History never
gets an invented altitude. The live end is the path the aircraft was drawn
along, thinned to its shape, so it no longer cuts corners through turns; a
late report trims what was drawn after it. Old segments are frozen in chunks,
so a 2,000-point trail costs about 0.1 ms a frame.
A tracked aircraft that misses an update shows STALE and is dimmed. It keeps
flying on its last speed and heading for five minutes (at most 1,500 kt),
then stops, dimmed, labelled SIGNAL LOST with the time since its last report,
and is kept for ten minutes after that report so the camera keeps its target.
Aircraft on or near known ground hold at their last report instead of
coasting. Military flights follow the same rules.
The catalog source 'NASA FIRMS · LIVE' still led the row; getStats() now
names the source 'NASA FIRMS' for such a snapshot. get_active_fires says
"in the 24 hours to" its end and reports window_end. The end is checked
to be a printable time, cleared under KEY REQUIRED, the test moves next
to the layer, and the changelog and CURRENT-STATE describe it.
A FIRMS source may answer the 24 hours to a set time, naming its end as
`at` (epoch ms). The layer row then reads "24 h to MM-DD HH:MM UTC"
instead of "LIVE · updated ...", and getStats() reports `at`. A
snapshot without `at` (the trailing 24 hours to now, as the dev proxy
serves) keeps the LIVE label. Translated in every catalog.
Tracking a civil flight asks Planespotters for that aircraft's photo, once
per aircraft, straight from the browser. The CONTEXT panel's CONTACTS view
shows it under the flight's name with the photographer's credit, as a plain
link to the photo's page. Only images on plnspttrs.net and pages on
www.planespotters.net are ever shown or linked. Military aircraft and a
converted TR-3B are never looked up.
Flight lookups (type, route, photo) whose source failed temporarily are
asked again after a 60-second cool-down; an answer, found or not, and a
permanent refusal stay final for the session. A route belongs to the
callsign it was looked up for, so a callsign change drops the old route.
Browser QA scripts that track a flight answer the photo lookup themselves,
so they never call the third party.
With Lines on, every progressive paint of a loading city rebuilt all road
lines: up to three ground-line primitives for as many as 1,500 roads, built
asynchronously. Builds started faster than they finished, and each kept the
set it replaced in the scene until it was ready, so sets piled up.
One set now builds at a time. A rebuild asked for while lines are building
replaces the one waiting, and the newest starts when the build finishes.
Lines replaced by a finished build are removed before the next one starts.
Turning Lines off removes the lines at once and drops the waiting rebuild.
createApplicationTools returns pointer: claim(owner) takes the pointer as
Draw does and returns its lease, or null while another tool holds it;
release(lease) gives it back; isFree() lets the application's own click
handlers yield, as the layers' do. This replaces drawShape, which this
branch added: Draw is as it was.
With readings kept per point, the floor a vehicle gets depends on which point
is probed and where it is read. Transit offered the sampler the first point of
each vehicle's path in a cell, usually its oldest fix there, so a vehicle that
stayed in one cell never had its current spot probed. It now offers the latest
point of the path in each cell, and the newest fix in the vehicle's own cell
(the selected vehicle's history is walked newest first).
The grounded-flight display clamp read the floor at its sticky cell's centre,
which now answers from the reading nearest the centre, not the contact. It
reads at the contact's own position, held inside the sticky cell so boundary
hysteresis still applies.
On the photoreal stack the rendered-mesh floor took one probe at each coarse
cell's centre (0.001 degrees) and kept it for the session. A centre on a roof
passed the +80 m DEM window and lifted every vehicle in the cell to roof height
(a Haymarket bus drew 23.5 m above the street, on the garage roof); a centre in
the river put Red Line trains on the Longfellow Bridge 6-9 m under the deck.
The sampler now probes at the caller's point. A cell with a reading is probed
again only at spots about 17 m apart from earlier ones, eight at most, and a
spot refused only because the cell's DEM prior was cold is tried again later.
The floor keeps each reading that passes the gate at the point it was taken
(two within about 5 m keep the lower; sixteen at most per cell) and answers a
read from the reading nearest the asked point, so a viaduct and the street
beside it in one cell keep their own heights.
createApplicationTools returns drawShape({ shape, signal }): it opens Draw
for one area or line and resolves with its Polygon or LineString without
placing a mark, or null when draw mode is left, the signal aborts, a newer
request replaces it, the pointer is held elsewhere or the tool goes. The
shape controls cannot change the asked-for shape, and a shape across the
antimeridian is refused as a row's actions refuse it and drawn again. It
also returns pointerFree, so an application's own click handlers yield to a
tool holding the pointer, as the layers' do.
Sameh Khamis