The catalog fetch now refuses redirects, cancels rejected bodies and reads
through the shared capped reader before the windows-1252 decode. The feed sends
cardinal codes plus B (both), O and null, not BW or diagonals; tests, comments
and docs now say so, with unchanged id-hash fallbacks. Documents the 8-1,200
per-pack range, drops the unverified low-volume compliance claim for facts and
a link to WSDOT's terms, and stops claiming the per-pack defaults fit under
the 4,000 cap: it is filled round-robin.
WSDOT's layer metadata defines BW (Bothways) plus the diagonals
NE/SE/SW/NW alongside N/E/S/W. Diagonal cameras were being demoted to the
low-confidence id-hash fallback; map them to 45/135/225/315 degrees and
treat BW (not B) as the no-single-facing code. Add CCTV_WSDOT_ENABLED and
CCTV_WSDOT_MAX_SOURCES to .env.example with the other pack controls.
Adds Washington State's highway cameras as a keyless source pack, from the
Esri JSON layer WSDOT's own Travel Center map consumes
(data.wsdot.wa.gov/travelcenter/Cameras.json, ~1,700 point features).
Closes#624.
- Geometry arrives in EPSG:3857; converted to WGS84 on load and bounded to
a Washington bounding box.
- 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; those are skipped rather than
proxied. 1,630 cameras survive the filters against the live feed.
- CompassDirection letters (N/E/S/W) give a high-confidence heading; the
majority `B` ("both directions") rows carry no single facing and use the
shared id-hash fallback at low confidence, with the usual two pose
personalities.
- The feed body carries Windows-1252 bytes (en-dashes in titles) with no
charset declaration, so it is decoded explicitly before parsing.
- WSDOT's layer metadata marks the feed "low volume": the 15-minute catalog
cache and per-request frame fetches respect that, frames are never stored
or redistributed, and the WSDOT credit is registered in the attribution
popover. A keyed WSDOT Traveler Information API serves the same population
for higher-volume use and is deliberately not required.
- Defaults: 250 cameras nearest Seattle and Spokane; CCTV_WSDOT_MAX_SOURCES
changes the cap, CCTV_WSDOT_ENABLED=0 turns the pack off.
- Tests: Mercator conversion against a real layer feature, official-host and
malformed-row filtering, compass mapping and both pose personalities,
cp1252 decoding, env cap, upstream-failure fallback.
Sameh Khamis