Clear canvas when nothing to replay

2018-11-14 19:02:44 +01:00
parent c37b6202a0
commit 5fffb67242
1 changed files with 7 additions and 4 deletions
--- a/src/ol/renderer/canvas/VectorLayer.js
+++ b/src/ol/renderer/canvas/VectorLayer.js
@@ -103,13 +103,16 @@ class CanvasVectorLayerRenderer extends CanvasLayerRenderer {
   */
  render(frameState, layerState) {
    const replayGroup = this.replayGroup_;
-    if (!replayGroup || replayGroup.isEmpty()) {
-      return;
-    }
-
    const context = this.context;
    const canvas = context.canvas;

+    if (!replayGroup || replayGroup.isEmpty()) {
+      if (canvas.width > 0) {
+        canvas.width = 0;
+      }
+      return;
+    }
+
    const extent = frameState.extent;
    const pixelRatio = frameState.pixelRatio;
    const viewState = frameState.viewState;