Merge pull request #2254 from elemoine/replaygroup

Use replay groups for feature overlays

src/ol/render/renderevent.js

@@ -35,13 +35,14 @@ ol.render.EventType = {
  * @param {ol.render.EventType} type Type.
  * @param {Object=} opt_target Target.
  * @param {ol.render.IVectorContext=} opt_vectorContext Vector context.
+ * @param {ol.render.IReplayGroup=} opt_replayGroup Replay group.
  * @param {olx.FrameState=} opt_frameState Frame state.
  * @param {?CanvasRenderingContext2D=} opt_context Context.
  * @param {?ol.webgl.Context=} opt_glContext WebGL Context.
  */
 ol.render.Event = function(
-    type, opt_target, opt_vectorContext, opt_frameState, opt_context,
-    opt_glContext) {
+    type, opt_target, opt_vectorContext, opt_replayGroup, opt_frameState,
+    opt_context, opt_glContext) {
 
   goog.base(this, type, opt_target);
 
@@ -52,6 +53,11 @@ ol.render.Event = function(
    */
   this.vectorContext = opt_vectorContext;
 
+  /**
+   * @type {ol.render.IReplayGroup|undefined}
+   */
+  this.replayGroup = opt_replayGroup;
+
   /**
    * @type {olx.FrameState|undefined}
    * @todo api

src/ol/render/vector.js

@@ -24,6 +24,27 @@ ol.renderer.vector.defaultOrder = function(feature1, feature2) {
 };
 
 
+/**
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Squared pixel tolerance.
+ */
+ol.renderer.vector.getSquaredTolerance = function(resolution, pixelRatio) {
+  var tolerance = ol.renderer.vector.getTolerance(resolution, pixelRatio);
+  return tolerance * tolerance;
+};
+
+
+/**
+ * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {number} Pixel tolerance.
+ */
+ol.renderer.vector.getTolerance = function(resolution, pixelRatio) {
+  return ol.SIMPLIFY_TOLERANCE * resolution / pixelRatio;
+};
+
+
 /**
  * @param {ol.render.IReplayGroup} replayGroup Replay group.
  * @param {ol.geom.Geometry} geometry Geometry.