fix color changing when zooming

Author: vadzim-revolist

lib/HeatmapLayer.js

@@ -313,7 +313,7 @@ exports.default = (0, _reactLeaflet.withLeaflet)((_temp = _class = function (_Ma
 
     var maxZoom = this.props.maxZoom === undefined ? this.props.leaflet.map.getMaxZoom() : this.getMaxZoom(this.props);
 
-    var v = 1 / Math.pow(2, Math.max(0, Math.min(maxZoom - this.props.leaflet.map.getZoom(), 12)));
+    var v = 1 / Math.pow(2, Math.max(0, Math.min(maxZoom - this.props.leaflet.map.getZoom(), 12)) / 2);
 
     var cellSize = r / 2;
     var panePos = this.props.leaflet.map._getMapPanePos();

src/HeatmapLayer.js

@@ -307,7 +307,7 @@ export default withLeaflet(class HeatmapLayer extends MapLayer {
 
     const v = 1 / Math.pow(
       2,
-      Math.max(0, Math.min(maxZoom - this.props.leaflet.map.getZoom(), 12))
+      Math.max(0, Math.min(maxZoom - this.props.leaflet.map.getZoom(), 12)) / 2
     );
 
     const cellSize = r / 2;