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.
createApplicationTools({ drawMarkActions }) adds an application's buttons to
the rows of drawn areas and lines. An action gets the shape's id, kind, name,
row title and [lon, lat] geometry, and what it returns or resolves to is a
note under the row. The standalone shell passes none, so the open-source
build is unchanged.
In the orbital view a double-click on a mapped ground point went on to
Cesium's own double-click, which tracks the picked entity and so ended the
view. The Cockpit's double-click routing now takes it in orbit: it keeps or
starts the focus on that point (a point beyond the reach is left unfocused
but still not tracked). A double-click anywhere else, one a tool owns, and
every one outside orbit go on to Cesium's as before, and stopping the
Cockpit still hands Cesium's handler back.
The Orbital view section said the zoom stops at 8x. It now covers the
16x to 128x steps for satellites with a confirmed sensor swath, capped
from live altitude, the mouse wheel, the SENSOR button, the to-scale
swath strip and readout (approximate off nadir), the imagery pre-load
ahead of the ground track, the TLE age on the identifier line, and that
the sensor values cite operator and agency pages per platform.
With a satellite tracked and no aircraft tracked, Cockpit can ride the
satellite. Entry needs only the Satellites layer; debris can be tracked but
not entered, and voice stays aircraft-only. Double-clicking the tracked
satellite or the entry buttons (reading ORBIT) enter it.
The camera sits on the satellite's per-frame SGP4 position and looks
straight down, turned to the ground track (north-up for a satellite with
none). The optical zoom steps 1x to 8x with a focus pull, the arrows tilt
the view up to 45 degrees off nadir, and Home or 0 returns to nadir. Off
nadir the tilt reads its total angle first and the swath readout becomes an
approximation marked with ≈. While in orbit the map leases flat Esri
imagery, the cloud pass stays off and the view opens in the optical style.
The orbital HUD names the satellite with its owner's flag (from the
flag-icons package, loaded per country) or an organisation badge, its
operator, class, NORAD and COSPAR ids and TLE epoch with the element lines
on request, altitude, orbital speed and the sub-satellite point. CURRENTLY
OVER names the country and its first-level division, or the sea, and from
8x the most prominent populated place nearby, looked up offline from the
bundled Natural Earth packs (populated places are a new pack). The
satellites layer hides the ridden satellite's own marks, dims the other
orbit rings and ignores scene clicks and Escape while held. Exit restores
the camera's field of view and the satellite's follow camera.
C no longer enters or leaves Cockpit, bridge or orbit: it is left to the
app-wide CCTV shortcut, and Escape or the exit button leave first person.
The orbital view reads a satellite's owner country, operator, COSPAR id,
TLE epoch and whether its class can be ridden. #1558 now carries only
what the class toggles read, so this brings the rest back here, where it
is first used: the classes.js helpers and the UCS pack's operator and
owner fields.
Only catalog and the tracked satellite were saved for the layer, so a class
chip lasted until the next reload and no share link carried it. The choice
is now the satellites option `classes`: one letter per class shown
(`sitpd` by default, `0` for none), with Starlink left to `catalog`, and
the layer takes the letters back through setParams. A partial request
(`{debris: false}`) hides only what it names.
Showing only Stations and Imaging by default hid GPS, GEO comsats, Hubble
and the rest of what the layer showed before classes, for every existing
user and saved view. Every class now starts on except Starlink, which stays
off as the DENSE switch was.
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