Vessels out of view move on every 250 ms so one coming into view is current;
vessels at the end of their fixes ask for no frames; nothing moves while the
layer is off; 2D views judge the half-pixel step across the view's width; a
re-floor redraws vessels where they are on the next pass.
Vessels between two fixes, and live vessels a host placement places, were
redrawn at most every 250 ms, and a frame was asked for only once a second.
With nothing else asking for frames the scene drew vessels at about 1 to
2 fps live, and none at all while the world clock played at 1x.
They are now redrawn every frame the scene draws, moved in place without
new allocations. After each pass the layer works out how far the fastest
drawn vessel moved on screen and asks for the next frame for when it will
have moved another half pixel, at least once a second while any drawn
vessel moves. A vessel crossing the view close up therefore glides, and
one far away lets the scene idle. A frame already asked for later is
brought forward when a vessel speeds up.
Satellite points were propagated once a second and held still in between,
so while the world clock plays faster than real time they jumped: at
1 min/s, about 45 px once a second at globe scale.
Each SGP4 call now keeps a sample of the satellite's inertial position,
velocity, gravity and its rate of change (src/layers/satellites/motion.js).
Every frame each shown point is reckoned from its sample to the world time
and turned into the Earth-fixed frame by the sidereal angle, so points
glide at any play speed. Core satellites still take a fresh sample every
second, and at once when the world time is 30 s from it (fast play, a
seek), which keeps every point within about 10 m of SGP4. Starlink extras
take their first sample as they load and are resampled round-robin, more
per frame the faster time plays (up to 2,000 a frame); a point more than
two minutes from its sample waits for the next one. Hidden points are
moved when shown again, and the tracked satellite keeps its per-frame path.
Measured at globe scale: at 1 min/s points move on every frame, 0.4 px a
frame and at most 1.4 px (before: once a second, 45 px). With 11,880
satellites (Starlink on) the scene holds 60 fps, frames 16.7 ms median and
19.7 ms p95; reckoning costs 0.02 ms a frame for 1,342 points.
A weather row's play started the world clock even with no time to show,
where there is no timeline; it now does nothing then, as the timeline's
own Play cannot be reached. A weather layer made without a weather clock
does nothing once destroyed, so enabling it after builds no clock.
The timeline's speed follows the world clock's rate whoever set it, and
its Play runs at that rate, so it and a row's play never run at different
rates; a rate not offered shows as the nearest offered speed. Choosing a
speed sets the clock's rate first, also while a driver steps.
Marks merge on their whole label and are cut for showing after, so two
whose labels only differ past the cut stay two, and the cut counts
graphemes (code points where the runtime cannot tell them), so an emoji is
never split.
Tests that compared a DOM element with null built an assertion message
from the element when they failed, which hung the run; they compare plain
values now, so they fail at once. The timeline tests put the clock back to
real time after each.
A weather row's play ran the world clock at whatever rate it had, and
going live set that back to 1, so the speed chosen on the timeline was
lost. The world clock now keeps its rate while paused and live, and the
timeline's speed sets it whenever it is chosen, so any play runs at it.
A row's play starts from the start of the covered time when live or at
its end, as the timeline's does, and does nothing while every product the
row shows is suspended, as its reduced-motion note says.
Live, the Weather panel's frame time is the newest of each product's
frames, suspended or not, so it no longer goes away under reduced motion,
on a hidden page or without an imagery host.
A weather layer made without a weather clock builds its own when first
enabled rather than when made, so a layer never turned on leaves the
world clock alone, and its own clock (createWeatherClock({ shared: false }))
leaves the world's time where it is when destroyed; only the last shared
weather clock sends the world live.
On the timeline, a zoom or a pan clears the hovered tick's label, a label
is never wider than the track and ends in an ellipsis, and a mark's label
is cut to 60 characters (WORLD_CLOCK_MARK_LABEL_LENGTH).
The changelog entry says what a row's step does, names the earthquake
layer's new exports and says it registers with the world clock.
A layer's world clock coverage may now give each mark as an object,
{ time, label?, id?, kind? }, as well as a bare epoch ms number, and the
two may be mixed. worldClock.coverage() keeps marks as the sorted list of
distinct times, so existing readers are unchanged, and adds markDetails:
the merged marks in time order (then kind, label and id), each frozen and
holding only the fields given. Marks given alike by several sources appear
once, a bare time is dropped where a labelled mark shares it, and a mark
with no finite time is ignored. The contract is documented in the
worldClock JSDoc and docs/APPLICATION.md.
Launches label their marks with the mission's name (the launch's where it
has none), cut to 27 characters in capitals as the mission index shows
names. Earthquakes of magnitude 6 and up label theirs with the magnitude
as the map shows it and the feed's place cut to 40 characters, such as
"M6.4 · 113 km SSE of Lata, Solomon Islands"; the layer now tells the clock
when the labels change as well as the times.
On the timeline, a pointer within 6 px of a tick shows its label over the
track (nothing for an unlabelled mark), and a tap there goes exactly to
the mark's time instead of the point tapped. A tap elsewhere and a drag
work as before, and ticks stay ticks. The arrow keys still step from mark
to mark; with the handle on a mark, its labels follow the time in the
handle's aria-valuetext, and show over the track while it has focus.
The timeline drew a tick for every registered mark, and the weather clock
registered every radar, satellite and lightning frame, which come every few
minutes, so the track was a wall of dashes and the arrow keys crept from
frame to frame.
Weather products now register only the span of their frames (start and
end, as before) with no marks. Holds, the gate and the next-frame wait
while the world plays are unchanged. A weather row's step param goes to
the previous or next weather frame (every shown product's frames, and the
row's own while it is suspended) rather than to the timeline's marks.
The Earthquakes layer registers with the world clock once, at init, and
unregisters on destroy. While on, its quakes of magnitude 6 and up
(EARTHQUAKE_MARK_MAGNITUDE) are marks, and its coverage is their own span,
or none without any, so it never stretches the timeline beyond the feed.
Off, it has none. It tells the clock when the set of marks changes. The
map still draws every M2.5+ quake.
Launches stay marks. With no mark ahead or behind, the arrow keys step
along the track as shown.
Built without a weather clock, the weather layer still ran a frame replay
of its own: params.play stepped its frames every two seconds and went round
from the last to the first, params.step and params.latest picked frames
locally, and the layer tracked whether it followed the newest frame. That
was a second way to move time.
The layer now builds a weather clock on the page's world clock when none
is passed, and destroys it with the layer, so every layer follows the world
clock and its params move the world clock as the timeline does. The local
replay, its timer, the follow-latest flag, the wrap to the first frame, the
timerActive diagnostic and the reduced-motion "manual history available"
message are removed.
The Weather panel kept a second time transport of its own: a slider, step
buttons, Latest and Play, backed by a replay in the weather clock that
stepped the observed frames every two seconds and went round from the last
to the first. The weather clock also attached itself to the world clock as
a driver, so the timeline's Play became that replay whenever weather was on.
The panel now shows the frame time only: the newest frame and its age while
live, the timeline time alone at a past time. The weather clock no longer
has setTarget, step, latest, play, pause or togglePlay, its state no longer
has playing, and it no longer drives the world clock. It still follows the
world time, registers each product's frames as marks the timeline's arrow
keys step to, holds its products, and gates the world's continuous play at
each next frame until it loads. weatherClock.world names the world clock it
follows.
A weather row's play, latest and step params move the world clock as the
timeline does: play toggles continuous play (from the start of the covered
time when live), latest goes live, and step goes to the previous or next
mark. The rail timeline component, which only the panel used, is removed,
along with its unused messages in every locale.
The More sheet already shows the dock's Visual Presets tray right above
Visual, so the panel's own copy is hidden on the phone shell.
Co-authored-by: Manjunath Paparaju <[email protected]>
CURRENT-STATE covers the panel's groups, the opacity slider and what the
reset restores; the share link format lists field 30.
Co-authored-by: Manjunath Paparaju <[email protected]>
createApplicationCatalog takes an optional placement provider. Its
layer(kind) hands Flights, Military Flights, AIS Vessels, Transit and Rail
a place(id, wallMs), and optionally observe(id, fix) and forget(id). While
live, each layer tells it every fix it accepts and draws a contact where it
places it: position, height (the layer's own when none is given), course
and speed. A null answer, a provider that throws, a kind it leaves out, or
no provider at all keeps the layer's own motion unchanged, and following
the world clock the layers never ask it. A transit vehicle or train it
holds still lets the render loop idle and is asked again each second;
vessels ask for frames only while it places one, and stop when the layer
turns off.
Tests show the layers draw and reconcile exactly as before without a
provider and with one that places nothing, draw where a provider places
them, and idle while it holds them still.
- World timeline: a scrub counts as at now within a share of the track
(0.5%), now held to at most two minutes. A layer whose source covers
years made the window weeks wide, so most of the last month snapped to
live. Short tracks keep their window.
- Fires: card and detail ages count back from the end of the 24 hours the
layer shows when its snapshot ends at a set time, and from now only when
it runs to now. A window that ended months ago read "new 105d" on fires
three hours old at the time shown.
- Weather: a product's max gap and the delay after which its latest frame
reads late are at least one and a half of its feed's median frame
spacing (over its latest frames). A regional cloud feed with frames an
hour apart drew nothing for the second half of every hour while
scrubbing and read late after twenty minutes; feeds with frames minutes
apart keep their gaps.
The transit layer knew five modes, so a trolleybus drew as a bus, a
funicular as a train and a coach as a city bus. The GTFS basic route types
are now modes of their own (trolleybus, cable_tram, monorail, funicular,
aerial_lift), each with an icon, colour, detection tier, card word, voice
name, speed ceiling and fleet model.
A vehicle record may carry its route's GTFS route_type as routeType. It
settles the mode after the feed's fleet hint and before its route hint, and
picks the finer model (a coach for 200, a high-speed set for 101) when the
type is a kind of the vehicle's mode. Retained history classifies epochs
through transitModeFor too, so trails join the live vehicle.
Route hints from each operator's routes.txt: Prague's trolleybus lines
(51-59, 232, 275) and Petrin funicular, and the trams, trolleybuses and
metro lines of Bucharest, Cluj-Napoca and Turin. A feed may also name
route corrections that outrank the route type: Le Havre's routes.txt types
its funicular (8-FUNI) as a bus, so it is corrected to a funicular.
A virtual aid (AIS message 21's VirtualAtoN flag) is a mark broadcast
where nothing physical stands, so drawing it as a buoy showed a mark
that is not there. The vessel source record now carries `virtual`
(false unless a source says true; any source may set it), AISStream
sets it from VirtualAtoN, and the vessel layer keeps such an aid's
disc: vesselModelSpec returns null for it and the layer gathers no
model item for it. Its card, selected card and readout add VIRTUAL
after its kind.
A buoy's card, selected card and HUD readout showed "0.0KT · 135°" from
whatever its source reported. A fixed mark has neither, so they now show
its kind alone, whole ("CARDINAL MARK N", which the 14-character type cut
read as "CARDINAL MARK "), in the bone white of its disc.
isAidToNavigation now knows every kind an aid report names ("Light, with
sectors", "Fixed structure off shore" had no aid word), leaves out a
"Buoy Layer" as it does a tender, and matches each type text once: the
vessel layer asks per vessel on its rotation pass, which now skips the
aid discs it never turns.
Aid rows no longer cost ships their place: aisStreamRows lists every
vessel ahead of every aid, so the layer's 12,000-row request never drops
a ship for a buoy, and vessels_in_area (and the brief built on it)
counts ships only. An aid's name runs on into its NameExtension.
A buoy, beacon, RACON, light or IALA mark in the vessel feed was drawn
as a ship. A vessel record whose type names one, or whose MMSI is an
aid-to-navigation station's (99MIDxxxx), is now isAidToNavigation and
vesselModelSpec draws it as the fleet set's buoy of its mark (cardinal
N/E/S/W, port or starboard hand, safe water, isolated danger, special
mark; a red can when the type names no mark), at its built size and
flagged fixed so its model does not turn to a heading. Its icon is a
disc instead of a chevron.
AISStream now subscribes to AidsToNavigationReport by default, and the
server names each report's aid type code (0 to 31) as its kind instead
of reading it as a ship type.
Feeds carry many airport ground vehicles (type ZVEH) and ground stations
(GRND) that were drawn as the generic plane, some at the 10 km airborne
default.
- types.json gains aircraft_callsign rules: a ZVEH callsign starting FIRE is
a fire truck, PUSH/TUG a pushback tug, DEICER/SQUID/SQB a van, else a car.
GRND draws a new 11.8 m radio mast (other/radio_mast.glb).
- resolveAircraft and aircraftModelSpec take the callsign; a matched rule
names the model outright, ahead of the type's class model.
- The layer spec cache keys such types by the rule matched, so it holds at
most one entry per rule.
- These models (catalog category `other`) draw at their built size, as such
models already do, and a
contact with no altitude whose model is one now stands on the ground; the
feed's own type is kept for such contacts, as no airframe lookup knows it.
- Local ADS-B passes the callsign too.
The session snapshot recorded a user's switch only after the CCTV panel had
already rendered the layer off, so a first switch-off by the user inside
Contacts, or after a partly failed restore, still kept the panel open.
Context controls now hold the layers _clearLayersOutsideContextMode is
switching off while its transitions run; suspendsLayer reads that set, and
the snapshot is no longer consulted.
- A frame with no speedMps gets an exact anchor: an inertial one ran on at
zero speed and closed at 0.75 m/s, so the camera fell kilometres behind a
moving train. The docs example now passes speedMps and anchor: 'exact',
a name for its HUD, and isEntryAllowed for a train bound to its line.
- Transit's snapshot height is the floor where playback draws the vehicle,
not the newest report's floor uphill, and null while that floor is cold,
so a view waits for the surface instead of standing on the ellipsoid.
- Rail's direction follows playback once it has placed the train: a report
that runs back (a reversal, or GPS jitter) no longer turns the view
while the drawn train still runs forward.
- A frame's id is trimmed as the candidate's is.
- A double-click on the selected vessel no longer enters an application's
subject that took entry after it.
- The docs import from gods-eye-view/..., the package's name.
An inline panel that lost its WebGL context showed the panel runtime's own
notice and, over it, an alert dialog with no buttons that it could not act
on. With allowReload false a lost context now clears the notice and shows
none, as the docs already said. keepPanelRendering no longer logs render
errors itself: the render failure notice logs each one. Name the Cesium
private fields finishRaise and reportThrown rely on, and the version they
were checked against.
Contacts and Space Missions switch CCTV off to isolate themselves and restore
it on the way out: the panel and its share preference now stay as they are for
that round trip, as they do for Clear selected data layers. The controls no
longer read the collapsed class before asking: the panel chrome tells a panel
the accordion folded from one whose saved state is closed.
The camera controls gate asserts the collapse, reopens CCTV from the right
rail before switching it back on, and runs a Contacts entry and exit with the
panel open.
The fleet models (#1714) draw nearby trains and vehicles under the 3D toggle. A
held one now leaves out its model as it does its icon, as the Vessels layer does
for its bridge subject: its model item is hidden, and handing the visual back
to its icon keeps the icon hidden while held. Tests drive each layer with the
real fleet-model layer and a stubbed glTF loader; both fail without the fix.
Comments keep only the why: the loop-running flag, the mid-raise events and
the one-time canvas focus. The CURRENT-STATE section lists behaviour and
pitfalls instead of retelling the code, and no longer says every tileset
event is raised outside Scene's error handling.
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.
Sameh Khamis