Initialize map with opacity 0 for background layer slider

camptocamp · Feb 26, 2020 · b7abf68 · b7abf68
1 parent 8f190ac
commit b7abf68
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/contribs/gmf/src/backgroundlayerselector/component.js b/contribs/gmf/src/backgroundlayerselector/component.js
@@ -265,7 +265,10 @@ Controller.prototype.setLayer = function(layer, opt_silent) {
  * @param {import("ol/layer/Base.js").default} layer The opacity background layer.
  */
 Controller.prototype.setOpacityBgLayer = function(layer) {
-  const opacity = this.opacityLayer ? this.opacityLayer.getOpacity() : layer.getOpacity();
+  let opacity = 0;
+  if (this.opacityLayer) {
+    opacity = this.opacityLayer.getOpacity();
+  }
   layer.setOpacity(opacity);
   this.opacityLayer = layer;
   this.opacityLayer.setVisible(opacity !== 0);