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.
- 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.
The panel reads legend entries as label and count; the layer sent text, so each entry showed 'undefined'.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Replace the four era chips with the start and end year pickers the
air-accidents layer uses (the same RowRange control, ported as is);
the era colours stay as a legend under the row.
- Rasterize the boat marker at 144 px so large markers stay sharp.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A new Events layer maps shipwrecks with a card per wreck:
- EMODnet Human Activities heritage shipwrecks (about 6,500 in European
waters, CC BY 4.0), skipping rows taken from wrecksite.eu.
- Wikidata shipwrecks with a Wikipedia article plus sinking events
(CC0); an event folds into its ship for the date and death toll.
- A same-origin /api/shipwrecks proxy refreshes once a day and serves
the last snapshot as stale for up to a week.
Markers are a boat icon coloured by era and sized by deaths; four era
chips filter the layer. The card follows the air-accidents layout
(deaths first). Text that names people is dropped; victims appear as
a count only.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Sameh Khamis