include gutter in offsets

2022-03-29 12:58:04 +01:00
parent 14651563b4
commit 243ba189b7
2 changed files with 17 additions and 2 deletions
--- a/src/ol/webgl/TileTexture.js
+++ b/src/ol/webgl/TileTexture.js
@@ -397,8 +397,19 @@ class TileTexture extends EventTarget {

    let data;
    const image = this.tile.getImage();
+    const gutter = Math.round(this.tilePixelRatio_ * this.gutter_);
    try {
-      pixelContext.drawImage(image, col, row, 1, 1, 0, 0, 1, 1);
+      pixelContext.drawImage(
+        image,
+        col + gutter,
+        row + gutter,
+        1,
+        1,
+        0,
+        0,
+        1,
+        1
+      );
      data = pixelContext.getImageData(0, 0, 1, 1).data;
    } catch (err) {
      return null;