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German KhokhlovandClaude Fable 5.1
e214129e45
- No pointer cursor over coverage lines (no other layer has one); a click test replaces the hover tests. - No legend: one source, one colour. - The on-globe credit lives in index.js; credits.js is gone. - Billboard glyphs are SVG data URLs with the same geometry, so tests need no canvas stub. - The tile cache keeps the 120 most recently used tiles, same 24 h TTL, instead of a byte budget; listTileLayers was test-only. - providers/mapillary/ is flattened into the layer and its policy merged into one policy.js; the source's method list is a literal in the catalog. - One fakeCesiumViewer for the layer tests. - The fixture gate keeps the steps the unit tests do not cover: coverage and credit, a rejected key, line -> cone -> photo, close, a keyless page. Co-Authored-By: Claude Fable 5.1 <[email protected]>
41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
import { PbfReader } from 'pbf';
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import { VectorTile } from '@mapbox/vector-tile';
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import { tileLocalToLonLat } from './tileMath.js';
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/**
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* Decode a `mly1_public` coverage tile (z11–14) into sequences. The z14
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* `image` layer, which can hold >150k points, is skipped.
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* @param {Uint8Array} bytes
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* @param {{x:number,y:number,z:number}} address
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*/
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export function decodeCoverageTile(bytes, address) {
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const result = { sequences: [] };
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if (!bytes || !bytes.length) return result;
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const tile = new VectorTile(new PbfReader(bytes));
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const { x, y, z } = address;
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const sequenceLayer = tile.layers.sequence;
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if (sequenceLayer) {
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for (let i = 0; i < sequenceLayer.length; i++) {
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const feature = sequenceLayer.feature(i);
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const props = feature.properties || {};
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// A sequence with a capture gap is a multi-line: keep each part as its
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// own line, so no straight segment is drawn across the gap.
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const parts = [];
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for (const line of feature.loadGeometry()) {
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const part = line.map((point) =>
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tileLocalToLonLat(point.x, point.y, sequenceLayer.extent, x, y, z),
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);
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if (part.length >= 2) parts.push(part);
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}
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if (!parts.length) continue;
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result.sequences.push({
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id: String(props.id ?? feature.id ?? `${x}/${y}/${i}`),
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capturedAt: Number(props.captured_at) || 0,
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isPano: props.is_pano === true,
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parts,
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});
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}
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}
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return result;
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}
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