From c3e1dca615ceb8fb55990a950c4dbc251959199b Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Sat, 20 Jan 2024 18:03:24 +0100
Subject: Fix resolution-to-zoom logic.

---
 main.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'main.js')

diff --git a/main.js b/main.js
index f5cf41a..4764407 100644
--- a/main.js
+++ b/main.js
@@ -104,7 +104,6 @@ const baseMapSource = new WMTS({
 });
 
 
-const resolutions = [1024, 512, 256, 128, 64, 32, 16, 8];
 const view = new View({
   projection: projection,
   extent: extent,
@@ -113,7 +112,7 @@ const view = new View({
   center: [694767.48, 7338176.57],
   zoom: 1,
   enableRotation: false,
-  resolutions: resolutions,
+  resolutions: [1024, 512, 256, 128, 64, 32, 16, 8],
   constrainResolution: false,
 });
 
@@ -582,7 +581,7 @@ map.addLayer(new VectorTileLayer({
       return style;
     } else {
       const maxi = style.length - 1;
-      const z = resolutions.length - 2 - Math.log2(resolution);
+      const z = 10 /* Math.log2(maxResolution) */ - Math.log2(resolution);
       /* use Math.floor() as VectorTile.js calls getZForResolution(resolution, 1) */
       const i = z <= 0 ? 0 : z >= maxi ? maxi : Math.floor(z);
       // console.log(`resolution=${resolution}, z=${z}, i=${i}`);
-- 
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