From 22ed575325287eba2796b1676471ea5216bbc876 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Tue, 4 Apr 2017 13:53:29 +0200
Subject: [PATCH] Add optional destination extent in ol.source.Vector#getExtent

---
 src/ol/source/vector.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/ol/source/vector.js b/src/ol/source/vector.js
index ee3c9ad205..78a0d5a338 100644
--- a/src/ol/source/vector.js
+++ b/src/ol/source/vector.js
@@ -610,11 +610,12 @@ ol.source.Vector.prototype.getClosestFeatureToCoordinate = function(coordinate,
  *
  * This method is not available when the source is configured with
  * `useSpatialIndex` set to `false`.
+ * @param {ol.Extent=} opt_extent Destination extent.
  * @return {!ol.Extent} Extent.
  * @api
  */
-ol.source.Vector.prototype.getExtent = function() {
-  return this.featuresRtree_.getExtent();
+ol.source.Vector.prototype.getExtent = function(opt_extent) {
+  return this.featuresRtree_.getExtent(opt_extent);
 };