Snap center to pixel to avoid floating point issues

openlayers · Jul 28, 2015 · 5e505f2 · 5e505f2
1 parent 5e4474c
commit 5e505f2
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diff --git a/src/ol/view.js b/src/ol/view.js
@@ -400,7 +400,11 @@ ol.View.prototype.getState = function() {
   var resolution = /** @type {number} */ (this.getResolution());
   var rotation = this.getRotation();
   return /** @type {olx.ViewState} */ ({
-    center: center.slice(),
+    // Snap center to closest pixel
+    center: [
+      Math.round(center[0] / resolution) * resolution,
+      Math.round(center[1] / resolution) * resolution
+    ],
     projection: goog.isDef(projection) ? projection : null,
     resolution: resolution,
     rotation: rotation

diff --git a/test_rendering/spec/ol/layer/expected/image-webgl.png b/test_rendering/spec/ol/layer/expected/image-webgl.png