add missed null check in _findChildTiles, fix #2096

fuzhenn · fuzhenn · commit 053bdf857b78 · 2023-10-10T14:15:38.000+08:00
diff --git a/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js b/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js
@@ -862,7 +862,7 @@ class TileLayerCanvasRenderer extends CanvasRenderer {
 
     _findChildTiles(info) {
         const layer = this._getLayerOfTile(info.layer);
-        const terrainTileMode = layer.options['terrainTileMode'] && layer._isPyramidMode();
+        const terrainTileMode = layer && layer.options['terrainTileMode'] && layer._isPyramidMode();
         if (!layer || !layer.options['background'] && !terrainTileMode || info.z > this.layer.getMaxZoom()) {
             return EMPTY_ARRAY;
         }

Original file line number	Diff line number	Diff line change
`@@ -862,7 +862,7 @@ class TileLayerCanvasRenderer extends CanvasRenderer {`
`862`	`862`
`863`	`863`	`_findChildTiles(info) {`
`864`	`864`	`const layer = this._getLayerOfTile(info.layer);`
`865`		`- const terrainTileMode = layer.options['terrainTileMode'] && layer._isPyramidMode();`
	`865`	`+ const terrainTileMode = layer && layer.options['terrainTileMode'] && layer._isPyramidMode();`
`866`	`866`	`if (!layer \|\| !layer.options['background'] && !terrainTileMode \|\| info.z > this.layer.getMaxZoom()) {`
`867`	`867`	`return EMPTY_ARRAY;`
`868`	`868`	`}`