Changeset 715

Timestamp:

06/23/06 11:29:26 (3 years ago)

Author:

euzuro

Message:

move getExtent() calculation from Map to Layer

Files:

• sandbox/euzuro/LayersReworking/lib/OpenLayers/Layer.js (modified) (1 diff)
• sandbox/euzuro/LayersReworking/lib/OpenLayers/Map.js (modified) (2 diffs)

sandbox/euzuro/LayersReworking/lib/OpenLayers/Layer.js

@@ -175 +175 @@
-    },
-
+    /**
+     * @returns A Bounds object which represents the lon/lat bounds of the 
+     *          current viewPort.
+     * @type OpenLayers.Bounds
+     */
+    getExtent: function () {
+        var extent = null;
+
+        var center = this.getCenter();
+        if ( (this.baseLayer != null) && (center != null) ) {
+
+                var res = this.getResolution();
+                var size = this.getSize();
+                var w_deg = size.w * res;
+                var h_deg = size.h * res;
+
+                return new OpenLayers.Bounds(center.lon - w_deg / 2,
+                                             center.lat - h_deg / 2,
+                                             center.lon + w_deg / 2,
+                                             center.lat + h_deg / 2);
+
+        }
+
+        return extent;
+/** ALT CALCULATION FOR GETEXTENT 
+
+            var size = this.getSize();
+            
+            var tlPx = new OpenLayers.Pixel(0,0);
+            var tlLL = this.getLonLatFromViewPortPx(tlPx);
+    
+            var brPx = new OpenLayers.Pixel(size.w, size.h);
+            var brLL = this.getLonLatFromViewPortPx(brPx);
+            
+            extent = new OpenLayers.Bounds(tlLL.lon, 
+                                           brLL.lat, 
+                                           brLL.lon, 
+                                           tlLL.lat);
+**/
+    },
-
-    /**

sandbox/euzuro/LayersReworking/lib/OpenLayers/Map.js

@@ -301 +301 @@
-     */
-    getExtent: function () {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-    },
-
@@ -657 +640 @@
-    CLASS_NAME: "OpenLayers.Map"
-};
-
-/** ALT CALCULATION FOR GETEXTENT 
-
-            var size = this.getSize();
-            
-            var tlPx = new OpenLayers.Pixel(0,0);
-            var tlLL = this.getLonLatFromViewPortPx(tlPx);
-    
-            var brPx = new OpenLayers.Pixel(size.w, size.h);
-            var brLL = this.getLonLatFromViewPortPx(brPx);
-            
-            extent = new OpenLayers.Bounds(tlLL.lon, 
-                                           brLL.lat, 
-                                           brLL.lon, 
-                                           tlLL.lat);
-**/