- Viewer: resizes while a sharper photo loads start no second load (the
last size is looked at once it lands); decoded bitmaps nobody will draw
(an overtaken preview or upgrade) are closed.
- Cones: a photo opened while the drive's first page loads is the one
they centre on.
- A sequence page that lands while a lost WebGL context recovers keeps
its cones: no pose is emitted without a renderer, and a viewer error
never rejects page data.
- Source: an answer turned away unread (HTTP error, 429, length past the
cap) aborts its request and cancels its body, freeing the connection.
- Gate: findPickPoint no longer picks each centre five times at radius 0,
aims step 13's cone pick at the drawn billboards, and caps each
evaluation at 4 s, resuming from a cursor on the next poll, so a slow
machine cannot spend a whole wait in one evaluation.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Marker and direction (reported on the PR):
- KartaView has its own marker, a purple view cone (Street View's is
blue), not GEV's default pin that Mapillary uses.
- The camera direction (marker, cones, FOLLOW, a panorama's centre) is
the direction of travel to the next photo a few metres on. KartaView's
heading is the device compass: whole drives read 0 (no compass) and
others sit a steady ~110° off. Until the drive loads the compass stands
in (0 = unknown), and the pose is sent again once the course is known.
Remaining P4s from the review of #1121:
- Segment chaining is linear (a per-point cursor) and capped at 20,000
segments a tile and 5,000 points a line: a hostile tile of 60k segments
sharing one point took 1.5 s, now tens of ms.
- Decoded tiles are dropped when KartaView is switched off.
- No network / a refused request says so and is not retried as a timeout;
an unreadable answer says so.
- A docked flat photo skips the 2,560 px download until the viewer grows.
- The panel counts the drive's photos (countActivePhotos), not the thinned
page of cones (2,250, not 217).
- After a GPU reset the viewer redraws the photo itself, so a lookup the
user started is not cancelled; a failure is still reported.
- The gate's keyless page lights KartaView and checks it draws with no key;
the fixture answers the sequence count; the line-click step checks the
camera looks along the drive when the compass says 200°.
- README/CHANGELOG show the share-link form the app writes.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
From the IC8 review of #1121 (2 P2, 7 P3; each with a test that fails on
the old code):
P2
- A WebGL context lost while a newer panorama loaded left a black viewer
and a 'successful' open: the panorama now builds on the new canvas (or
falls back to its front view).
- The streaming body read every real answer takes was tested with one
chunk only: answers split mid-character are reassembled; the shared test
fake now streams, so every source test runs the production path.
P3
- Lighting another source by its chip (params) now stops a running lookup
and clears its spinner and error, as setProviderEnabled did; a restore
that changes nothing leaves them alone.
- Panoramas decode off the main thread (ImageBitmap, RGBA upload: ~90 ms →
~15 ms at 4,096 px on a phone-class CPU) and are 2,048 px docked, 4,096
once the viewer grows; a closed viewer keeps a 1×1 texture.
- The lit KARTAVIEW chip label is #8f8aff (~6:1; #635bff was 3.7:1).
- The viewer's keyboard focus ring is drawn above the photo.
- Tests: a second context loss and a drag on the new canvas; the look
direction kept across a loss; a page's 30 s first try.
- The browser gate loses a real WebGL context in the 360° step and checks
the 429 lookup was asked again (the fixture counter is reset first).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
From the second IC8 pass (launch ready; P3s closed here):
- A lost WebGL context is redrawn on a new canvas (the old one only gives
back its lost context), through the core, and only if no newer photo is
opening; verified live with WEBGL_lose_context, twice.
- The 16 MB answer cap counts bytes while reading: KartaView sends
chunked answers with no Content-Length, so the header check never fired.
- A lookup gets 8 s, then 15 s once more: KartaView sometimes sits on a
lookup for 11 s and answers the same one in 3 s.
Left as follow-ups: cancelling abandoned sequence pages; finding a page
by binary search on the index when thousands of photos are missing.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
P1s from the correctness review, each with a regression test:
- Cones showed the wrong page of a long sequence (cache keyed by
sequence; no re-centre after a close or a same-drive line click):
KartaView always reselects, and re-centres whenever a photo of the
selected sequence opens on another page.
- A 360° photo's first frame was one colour: the canvas was sized while
hidden (1×1). It is shown first, and re-measured every frame.
P2/P3s: a storage timeout or 5xx is not remembered as archived (only
403/404/409/410 are); dense z13 tiles draw up to 1,600 lines (a third of
downtown Detroit was cut); decoded tiles are kept 10 min; a timed-out tile
is asked once more; pages are 250 photos and the newest page request goes
first; a photo far past deleted ones, or unlisted at a page edge, still
finds its neighbours; a step that gets no answer is not the end; a lost
WebGL context redraws the photo, and a failed one is retried on the next
mount; the first flat image comes from the proxy (KartaView's own can be
1.7 MB); fileurl fallbacks must be https storage hosts; oversized answers
are refused; keyboard (Shift+← →, ↑ ↓, + −) and pinch look around a
panorama; focus stays in the viewer when a step button disables. Docs:
share links with 0.m.0, keyless count, CURRENT-STATE matched to the code.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
From two agentic QA passes (UX and failure modes):
- A line click opens the nearest photo that can be shown: archived photos
(409; a HEAD says 200) and records without files are skipped, a few at
most, else 'KartaView's photos here are archived'. ‹ › skip them too.
- api.kartaview.org is HTTP/1.1 (six connections): tiles take three,
lookups two, sequence pages one, so a lookup never times out behind
tiles; a timed-out lookup is asked once more; waits are capped at 10 s.
- Sequence pages follow photo ids, not the index: a photo's page is found
by search, a neighbour page joins near an edge, so ‹ › neither skip at
page edges nor loop past gaps. Pages are 500 photos (~1.2 MB).
- ‹ › open through the core without framing: loading, errors and cones
behave as for any open; presses step on from the photo on its way; the
ends disable up front.
- Cones ignore the hidden IMAGERY / SINCE filters; no 'Selected' swatch
for a source whose lines never highlight; 'no KartaView photos in view';
an unreadable tile is not cached as empty; a 0,0 fix is no photo; a
failed lookup's error goes when another source is lit; the link goes
through the image proxy; a stalled panorama shows its front view after
15 s instead of 60.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Coverage lines from KartaView's z13-14 JSON tiles (OSM ways with photos,
chained end to start), the photo nearest a clicked line, cones along its
sequence, and a viewer for flat photos and 360° panoramas (a small WebGL
equirectangular renderer, no new dependency) with ‹ › along the sequence.
Mapillary's camera-driven line coverage and sequence cones move to the
provider-neutral core (lineCoverage.js, sequenceCones.js) with the tile
fetch, zoom ladder, colours and pick prefixes injected; Mapillary keeps
thin wrappers and its tests pass unchanged.
KartaView quirks handled: api.kartaview.org (the documented
api.openstreetcam.org serves empty tiles), photo URLs that name storage1
for photos stored elsewhere, and a photo API that answers 429 to more than
about three requests at once (two in flight, retried with backoff).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
