From 4f123609606b438c9cf4dae82c967be15d895314 Mon Sep 17 00:00:00 2001 From: grabowski Date: Mon, 10 Aug 2026 16:47:14 +0700 Subject: [PATCH] fix: shift flood zones 1.05 km south, anchored to Nawarat Bridge The P.1 marker (Nawarat Bridge, 18.7875) sat inside zone 2 near its top edge, but the bridge IS Chang Khlan's northern boundary - the layer was ~0.0095 deg too far north (the district-centroid correction in c4e0fb6 overshot). Zone 2's north edge now lands at the bridge. --- src/static/flood-zones-p1.geojson | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/static/flood-zones-p1.geojson b/src/static/flood-zones-p1.geojson index cb933bd..f3a2c2a 100644 --- a/src/static/flood-zones-p1.geojson +++ b/src/static/flood-zones-p1.geojson @@ -1 +1 @@ -{"type": "FeatureCollection", "source": "Digitized from the Chiang Mai municipal inundation map; georeferenced by arc-length river matching plus landmark correction (positions approximate to a few hundred metres)", "features": [{"type": "Feature", "properties": {"zone": 1, "level": 3.7}, "geometry": {"type": "Polygon", "coordinates": [[[98.98774962450227, 18.74969821976622], [98.98910645308516, 18.750289004501216], [98.9897848673766, 18.750978253358713], [98.9895910347219, 18.75156903809371], [98.99182011025094, 18.753636784666195], [98.99298310617912, 18.754030641156195], [98.99656901029105, 18.75826459842367], [98.99715050825515, 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