Merge pull request #9433 from fredj/cleanup

Remove unused private variables, remove trailing whitespace

src/ol/layer/Heatmap.js

@@ -27,7 +27,6 @@ import WebGLPointsLayerRenderer from '../renderer/webgl/PointsLayer';
  * of the heatmap, specified as an array of CSS color strings.
  * @property {number} [radius=8] Radius size in pixels.
  * @property {number} [blur=15] Blur size in pixels.
- * @property {number} [shadow=250] Shadow size in pixels.
  * @property {string|function(import("../Feature.js").default):number} [weight='weight'] The feature
  * attribute to use for the weight or a function that returns a weight from a feature. Weight values
  * should range from 0 to 1 (and values outside will be clamped to that range).
@@ -75,7 +74,6 @@ class Heatmap extends VectorLayer {
     delete baseOptions.gradient;
     delete baseOptions.radius;
     delete baseOptions.blur;
-    delete baseOptions.shadow;
     delete baseOptions.weight;
     super(baseOptions);
 
@@ -85,24 +83,6 @@ class Heatmap extends VectorLayer {
      */
     this.gradient_ = null;
 
-    /**
-     * @private
-     * @type {number}
-     */
-    this.shadow_ = options.shadow !== undefined ? options.shadow : 250;
-
-    /**
-     * @private
-     * @type {string|undefined}
-     */
-    this.circleImage_ = undefined;
-
-    /**
-     * @private
-     * @type {Array<Array<import("../style/Style.js").default>>}
-     */
-    this.styleCache_ = null;
-
     listen(this,
       getChangeEventType(Property.GRADIENT),
       this.handleGradientChanged_, this);
@@ -273,9 +253,7 @@ class Heatmap extends VectorLayer {
           }
         }
       ],
-      opacityCallback: function(feature) {
+      opacityCallback: this.weightFunction_
-        return this.weightFunction_(feature);
-      }.bind(this)
     });
   }
 }