Add options object to ol.render.FeaturesOverlay constructor

src/objectliterals.jsdoc

@@ -503,6 +503,13 @@
  *     supported.
  */
 
+/**
+ * @typedef {Object} olx.render.FeaturesOverlayOptions
+ * @property {Array.<ol.Feature>|ol.Collection|undefined} features Features.
+ * @property {ol.Map|undefined} map Map.
+ * @property {ol.style.StyleFunction|undefined} styleFunction Style function.
+ */
+
 /**
  * @typedef {Object} olx.source.BingMapsOptions
  * @property {string|undefined} culture Culture code. Default is `en-us`.

src/ol/render/featuresoverlay.js

@@ -15,8 +15,11 @@ goog.require('ol.style.StyleFunction');
 
 /**
  * @constructor
+ * @param {olx.render.FeaturesOverlayOptions=} opt_options Options.
  */
-ol.render.FeaturesOverlay = function() {
+ol.render.FeaturesOverlay = function(opt_options) {
+
+  var options = goog.isDef(opt_options) ? opt_options : options;
 
   /**
    * @private
@@ -54,6 +57,23 @@ ol.render.FeaturesOverlay = function() {
    */
   this.styleFunction_ = undefined;
 
+  if (goog.isDef(options.features)) {
+    if (goog.isArray(options.features)) {
+      this.setFeatures(new ol.Collection(goog.array.clone(options.features)));
+    } else {
+      goog.asserts.assertInstanceof(options.features, ol.Collection);
+      this.setFeatures(options.features);
+    }
+  }
+
+  if (goog.isDef(options.styleFunction)) {
+    this.setStyleFunction(options.styleFunction);
+  }
+
+  if (goog.isDef(options.map)) {
+    this.setMap(options.map);
+  }
+
 };