From 3ff84dce9b10234495657b0a7fa6f1b1c8d2e392 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Thu, 19 Jul 2012 00:28:08 +0200
Subject: [PATCH] Add ol.Extent.boundingExtent

---
 src/ol/extent.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/ol/extent.js b/src/ol/extent.js
index 7f9639068f..8807bc5c00 100644
--- a/src/ol/extent.js
+++ b/src/ol/extent.js
@@ -19,6 +19,26 @@ ol.Extent = function(minX, minY, maxX, maxY) {
 goog.inherits(ol.Extent, ol.Rectangle);
 
 
+/**
+ * @param {...goog.math.Coordinate} var_args Coordinates.
+ * @return {!ol.Extent} Boundin extent.
+ */
+ol.Extent.boundingExtent = function(var_args) {
+  var coordinate0 = arguments[0];
+  var extent = new ol.Extent(coordinate0.x, coordinate0.y,
+                             coordinate0.x, coordinate0.y);
+  var i;
+  for (i = 1; i < arguments.length; ++i) {
+    var coordinate = arguments[i];
+    extent.minX = Math.min(extent.minX, coordinate.x);
+    extent.minY = Math.min(extent.minY, coordinate.y);
+    extent.maxX = Math.max(extent.maxX, coordinate.x);
+    extent.maxY = Math.max(extent.maxY, coordinate.y);
+  }
+  return extent;
+};
+
+
 /**
  * @return {ol.Extent} Extent.
  */