MapLibre-Perf-Test: /maplibre-perf-test (Basemap + 600 Cluster-Marker, GPU) — Handy-Proof vor dem Umbau

2026-06-05 09:24:13 +02:00 · 2026-06-05 09:24:13 +02:00 · a27695d9c6
commit a27695d9c6
parent 5e354f7e8e
3 changed files with 99 additions and 0 deletions
--- a/backend/static/js/maplibre-perf-test.js
+++ b/backend/static/js/maplibre-perf-test.js
@ -0,0 +1,70 @@
+// Wegwerf-Perf-Test: beweist MapLibre-GPU-Rendering auf dem Handy mit realistischer
+// Marker-Last (600 Punkte, GeoJSON-Clustering) auf unserer DACH-Basemap — die Kombi,
+// die mit protomaps-leaflet (Main-Thread) den UI-Thread blockierte.
+// Cluster-Zahlen weggelassen (Text bräuchte Glyphs → kommt erst in M3).
+(function () {
+  'use strict';
+  var st = document.getElementById('status');
+  function set(t) { if (st) st.textContent = t; }
+
+  try {
+    var proto = new pmtiles.Protocol();
+    maplibregl.addProtocol('pmtiles', proto.tile);
+    var isDark = document.documentElement.dataset.theme === 'dark';
+
+    var map = new maplibregl.Map({
+      container: 'map',
+      style: MapGLStyle.build({ dark: isDark }),
+      center: [11.576, 48.137], zoom: 12, hash: true,
+    });
+    map.addControl(new maplibregl.NavigationControl(), 'top-right');
+    map.addControl(new maplibregl.ScaleControl());
+
+    // Kategorie-Icon (farbiger Kreis) per Canvas → addImage (Icons brauchen KEINE Glyphs).
+    function makeIcon(color) {
+      var s = 34, c = document.createElement('canvas'); c.width = c.height = s;
+      var x = c.getContext('2d');
+      x.beginPath(); x.arc(s / 2, s / 2, s / 2 - 3, 0, Math.PI * 2);
+      x.fillStyle = color; x.fill();
+      x.lineWidth = 2; x.strokeStyle = 'rgba(52,68,36,0.6)'; x.stroke();
+      return x.getImageData(0, 0, s, s);
+    }
+
+    // 600 deterministische Pseudo-POIs um München (3 Kategorien).
+    function genPois(n) {
+      var feats = [], seed = 42;
+      function rnd() { seed = (seed * 9301 + 49297) % 233280; return seed / 233280; }
+      for (var i = 0; i < n; i++) {
+        feats.push({ type: 'Feature', properties: { cat: i % 3 },
+          geometry: { type: 'Point', coordinates: [11.40 + rnd() * 0.36, 48.03 + rnd() * 0.24] } });
+      }
+      return { type: 'FeatureCollection', features: feats };
+    }
+
+    map.on('load', function () {
+      map.addImage('cat0', makeIcon('#e8590c'));
+      map.addImage('cat1', makeIcon('#2f9e44'));
+      map.addImage('cat2', makeIcon('#1971c2'));
+      map.addSource('pois', { type: 'geojson', data: genPois(600),
+        cluster: true, clusterRadius: 50, clusterMaxZoom: 16 });
+      map.addLayer({ id: 'clusters', type: 'circle', source: 'pois', filter: ['has', 'point_count'],
+        paint: {
+          'circle-color': '#5b4a2f', 'circle-stroke-color': 'rgba(52,68,36,0.65)', 'circle-stroke-width': 2,
+          'circle-radius': ['step', ['get', 'point_count'], 14, 10, 18, 50, 24],
+        } });
+      map.addLayer({ id: 'poi', type: 'symbol', source: 'pois', filter: ['!', ['has', 'point_count']],
+        layout: {
+          'icon-image': ['match', ['get', 'cat'], 0, 'cat0', 1, 'cat1', 2, 'cat2', 'cat0'],
+          'icon-allow-overlap': true, 'icon-size': 0.7,
+        } });
+      set('✅ MapLibre + 600 Marker — jetzt zoomen/schieben, fühlt sich das flüssig an?');
+    });
+
+    map.on('error', function (e) {
+      set('⚠️ ' + (e && e.error ? e.error.message : 'Fehler'));
+      if (e && e.error) console.error(e.error);
+    });
+  } catch (e) {
+    set('❌ ' + (e && e.message ? e.message : e));
+  }
+})();