From c2b21985f402c52b2b69f3773b3b9b303d9e4fdc Mon Sep 17 00:00:00 2001
From: Petr Sloup <slouppetr@gmail.com>
Date: Wed, 12 Aug 2015 15:50:40 +0200
Subject: [PATCH] Add ol.source.TileImage#setTileGridForProjection method

---
 src/ol/source/tileimagesource.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/ol/source/tileimagesource.js b/src/ol/source/tileimagesource.js
index fa79dc4ca3..74afaa6d9f 100644
--- a/src/ol/source/tileimagesource.js
+++ b/src/ol/source/tileimagesource.js
@@ -315,6 +315,25 @@ ol.source.TileImage.prototype.setRenderReprojectionEdges = function(render) {
 };
 
 
+/**
+ * @param {ol.proj.ProjectionLike} projection
+ * @param {ol.tilegrid.TileGrid} tilegrid
+ * @api
+ */
+ol.source.TileImage.prototype.setTileGridForProjection =
+    function(projection, tilegrid) {
+  if (ol.ENABLE_RASTER_REPROJECTION) {
+    var proj = ol.proj.get(projection);
+    if (!goog.isNull(proj)) {
+      var projKey = goog.getUid(proj).toString();
+      if (!(projKey in this.tileGridForProjection)) {
+        this.tileGridForProjection[projKey] = tilegrid;
+      }
+    }
+  }
+};
+
+
 /**
  * Set the tile load function of the source.
  * @param {ol.TileLoadFunctionType} tileLoadFunction Tile load function.