Add ol.Extent.createEmptyExtent

2013-03-19 16:50:39 +01:00
parent 5186fa44f5
commit 483375ca42
1 changed files with 10 additions and 0 deletions
--- a/src/ol/extent.js
+++ b/src/ol/extent.js
@@ -45,6 +45,16 @@ ol.Extent.boundingExtent = function(var_args) {
 };


+/**
+ * @return {ol.Extent} Empty extent.
+ */
+ol.Extent.createEmptyExtent = function() {
+  return new ol.Extent(
+      Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY,
+      Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY);
+};
+
+
 /**
 * @param {ol.Coordinate} center Center.
 * @param {number} resolution Resolution.