new RegularPolygon features can be invisible, p=me, r=crschmidt (closes #1577)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@7588 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Handler/RegularPolygon.js

@@ -156,7 +156,14 @@ OpenLayers.Handler.RegularPolygon = OpenLayers.Class(OpenLayers.Handler.Drag, {
         var activated = false;
         if(OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
             // create temporary vector layer for rendering geometry sketch
-            var options = {displayInLayerSwitcher: false};
+            var options = {
+                displayInLayerSwitcher: false,
+                // indicate that the temp vector layer will never be out of range
+                // without this, resolution properties must be specified at the
+                // map-level for this temporary layer to init its resolutions
+                // correctly
+                calculateInRange: function() { return true; }
+            };
             this.layer = new OpenLayers.Layer.Vector(this.CLASS_NAME, options);
             this.map.addLayer(this.layer);
             activated = true;