Changeset 6947

Timestamp:

04/15/08 21:56:21 (5 months ago)

Author:

crschmidt

Message:

Add getDataExtent to Vector Layer. Patch from rupert, tests by me, r=me
(Closes #1369)

Files:

• trunk/openlayers/lib/OpenLayers/Layer/Vector.js (modified) (1 diff)
• trunk/openlayers/tests/Layer/Vector.html (modified) (2 diffs)

trunk/openlayers/lib/OpenLayers/Layer/Vector.js

@@ -535 +535 @@
-    },
-
+    /** 
+     * APIMethod: getDataExtent
+     * Calculates the max extent which includes all of the features.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getDataExtent: function () {
+        var maxExtent = null;
+        if( this.features && (this.features.length > 0)){
+            var maxExtent = this.features[0].geometry.getBounds();
+            for(var i=0; i < this.features.length; i++){
+                maxExtent.extend(this.features[i].geometry.getBounds());
+            }
+        }
+
+        return maxExtent;
+    },
+
-    CLASS_NAME: "OpenLayers.Layer.Vector"
-});

trunk/openlayers/tests/Layer/Vector.html

@@ -17 +17 @@
-    
-    function test_Layer_Vector_addFeatures(t) {
-4
+5
-    
-        var layer = new OpenLayers.Layer.Vector(name);
@@ -44 +44 @@
-
-        layer.addFeatures([pointFeature], {silent: true});
+
+        var extent = layer.getDataExtent();
+        t.eq(extent.toBBOX(), "-111.04,45.68,-111.04,45.68", "extent from getDataExtent is correct");
-    }
-