Map matching

GPS points snapped to the roads they were driven on.

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Code

<!doctype html>
<html lang="mn">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Map matching</title>
<link href="https://dock.mn/sdk/v1/dock.css" rel="stylesheet">
<script src="https://dock.mn/sdk/v1/dock.js"></script>
<style>
  body { margin: 0; font: 14px system-ui, sans-serif; }
  #map { position: absolute; inset: 0; }
  .panel { position: absolute; top: 10px; left: 10px; z-index: 1; max-width: 300px; padding: 8px 10px;
    background: #fff; border-radius: 6px; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25); }
</style>
</head>
<body>
<div id="map"></div>
<script>
  const client = new dock.Client({ key: 'dk_...' });
  const map = dock.createMap(client, { container: 'map', center: [106.9165, 47.8880], zoom: 15 });
  map.on('load', async () => {
    const gps = [[106.9105, 47.8930], [106.9118, 47.8921], [106.9131, 47.8909], [106.9142, 47.8897], [106.9149, 47.8884]];
    const trip = await client.matching(gps);
    map.addSource(dock.MATCHING_SOURCE, dock.matchingSource(trip));
    for (const layer of dock.matchingLayers({ width: 5 })) map.addLayer(layer);
    for (const p of gps) new dock.maplibregl.Marker({ scale: 0.5 }).setLngLat(p).addTo(map);
  });
</script>
</body>
</html>