segments: fit initial map view to all existing segments

2026-05-13 19:41:59 +02:00
parent d82033fd84
commit c2c4cb9f3a
1 changed files with 17 additions and 1 deletions
@@ -66,7 +66,23 @@
      map.on('mouseenter', 'seg-hit', () => { map.getCanvas().style.cursor = 'pointer'; });
      map.on('mouseleave', 'seg-hit', () => { map.getCanvas().style.cursor = ''; });

-      fetchSegments();
+      // Initial view: fit to all existing segments, fall back to default center
+      fetch('/api/segments', { credentials: 'include' })
+        .then(r => r.ok ? r.json() : [])
+        .then((all: Segment[]) => {
+          if (all.length > 0) {
+            const lonMin = Math.min(...all.map(s => s.bbox[0]));
+            const latMin = Math.min(...all.map(s => s.bbox[1]));
+            const lonMax = Math.max(...all.map(s => s.bbox[2]));
+            const latMax = Math.max(...all.map(s => s.bbox[3]));
+            map.fitBounds([[lonMin, latMin], [lonMax, latMax]], { padding: 60, maxZoom: 14 });
+            segments = all;
+            updateMapSource();
+          } else {
+            fetchSegments();
+          }
+        })
+        .catch(() => fetchSegments());
    });

    map.on('moveend', () => {