Merge pull request #2385 from ahocevar/update-vectors-while-animating

Option to update vector layers while animating

src/ol/layer/vectorlayer.js

@@ -36,6 +36,7 @@ ol.layer.Vector = function(opt_options) {
 
   delete baseOptions.style;
   delete baseOptions.renderBuffer;
+  delete baseOptions.updateWhileAnimating;
   goog.base(this, /** @type {olx.layer.LayerOptions} */ (baseOptions));
 
   /**
@@ -61,6 +62,13 @@ ol.layer.Vector = function(opt_options) {
 
   this.setStyle(options.style);
 
+  /**
+   * @type {boolean}
+   * @private
+   */
+  this.updateWhileAnimating_ = goog.isDef(options.updateWhileAnimating) ?
+      options.updateWhileAnimating : false;
+
 };
 goog.inherits(ol.layer.Vector, ol.layer.Layer);
 
@@ -113,6 +121,15 @@ ol.layer.Vector.prototype.getStyleFunction = function() {
 };
 
 
+/**
+ * @return {boolean} Whether the rendered layer should be updated while
+ *     animating.
+ */
+ol.layer.Vector.prototype.getUpdateWhileAnimating = function() {
+  return this.updateWhileAnimating_;
+};
+
+
 /**
  * @param {function(ol.Feature, ol.Feature):number|null|undefined} renderOrder
  *     Render order.

src/ol/renderer/canvas/canvasvectorlayerrenderer.js

@@ -169,7 +169,8 @@ ol.renderer.canvas.VectorLayer.prototype.prepareFrame =
       frameState.attributions, vectorSource.getAttributions());
   this.updateLogos(frameState, vectorSource);
 
-  if (!this.dirty_ && (frameState.viewHints[ol.ViewHint.ANIMATING] ||
+  if (!this.dirty_ && (!vectorLayer.getUpdateWhileAnimating() &&
+      frameState.viewHints[ol.ViewHint.ANIMATING] ||
       frameState.viewHints[ol.ViewHint.INTERACTING])) {
     return true;
   }

src/ol/renderer/dom/domvectorlayerrenderer.js

@@ -229,7 +229,8 @@ ol.renderer.dom.VectorLayer.prototype.prepareFrame =
       frameState.attributions, vectorSource.getAttributions());
   this.updateLogos(frameState, vectorSource);
 
-  if (!this.dirty_ && (frameState.viewHints[ol.ViewHint.ANIMATING] ||
+  if (!this.dirty_ && (!vectorLayer.getUpdateWhileAnimating() &&
+      frameState.viewHints[ol.ViewHint.ANIMATING] ||
       frameState.viewHints[ol.ViewHint.INTERACTING])) {
     return true;
   }

src/ol/renderer/webgl/webglvectorlayerrenderer.js

@@ -128,7 +128,8 @@ ol.renderer.webgl.VectorLayer.prototype.prepareFrame =
       frameState.attributions, vectorSource.getAttributions());
   this.updateLogos(frameState, vectorSource);
 
-  if (!this.dirty_ && (frameState.viewHints[ol.ViewHint.ANIMATING] ||
+  if (!this.dirty_ && (!vectorLayer.getUpdateWhileAnimating() &&
+      frameState.viewHints[ol.ViewHint.ANIMATING] ||
       frameState.viewHints[ol.ViewHint.INTERACTING])) {
     return true;
   }