diff --git a/src/ol/geom/flat/containsflatgeom.js b/src/ol/geom/flat/containsflatgeom.js
index 5b5c93aacb..18379450ac 100644
--- a/src/ol/geom/flat/containsflatgeom.js
+++ b/src/ol/geom/flat/containsflatgeom.js
@@ -1,6 +1,29 @@
 goog.provide('ol.geom.flat.contains');
 
 goog.require('goog.asserts');
+goog.require('ol.extent');
+
+
+/**
+ * @param {Array.<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {ol.Extent} extent Extent.
+ * @return {boolean} Contains extent.
+ */
+ol.geom.flat.contains.linearRingContainsExtent =
+    function(flatCoordinates, offset, end, stride, extent) {
+  var outside = ol.extent.forEachCorner(extent,
+      /**
+       * @param {ol.Coordinate} coordinate Coordinate.
+       */
+      function(coordinate) {
+        return !ol.geom.flat.contains.linearRingContainsXY(flatCoordinates,
+            offset, end, stride, coordinate[0], coordinate[1]);
+      });
+  return !outside;
+};
 
 
 /**