[OpenLayers-Users] Selecting polygon error.
samd
sdoyle_2 at yahoo.com
Thu Jan 17 22:56:43 EST 2008
Hi I was discussing this in a previous message but created a new one since it
is a different topic.
When I am using a select control on a polygonLayer such as the following:
selectControl = new OpenLayers.Control.SelectFeature(polygonLayer,
{hover: true,
onSelect:
polySelected,
onUnselect:
polyUnselected})
map.addControl( selectControl );
selectControl.activate();
And I regenerate a polygon from points retrieved from the server such as the
following:
for ( var j = 0; j < polygonAreaPoints.length; j++ )
{
var x = polygonAreaPoints[j].x;
var y = polygonAreaPoints[j].y;
pointArray.push( new OpenLayers.Geometry.Point( x, y ) );
}
// Create the linear ring
var ring = new OpenLayers.Geometry.LinearRing( pointArray );
// Create the polygon
var feature = new OpenLayers.Geometry.Polygon( ring );
var f = new OpenLayers.Feature.Vector(feature);
polygonLayer.addFeatures( f );
The SelectFeature generates the following error on hover:
node.parentNode has no properties
Tracing in Firebug the error occurs here in the OpenLayers.Renderer.Elements
class
nodeFactory: function(id, type) {
var node = OpenLayers.Util.getElement(id);
if (node) {
if (!this.nodeTypeCompare(node, type)) {
node.parentNode.removeChild(node); // ERROR OCCURS HERE
node = this.nodeFactory(id, type);
}
} else {
node = this.createNode(type, id);
}
return node;
},
Now examining the debugger the node attribute is a number such as 103,105
etc and the type is "path"
The only thing that I can conclude is there is something missing from the
construction of the polygon or the addition to the layer in some aspect
since obviously the node just being a numeric value does not have a parent
attribute.
Once again the values are rendered on the map but the SelectFeature results
in this odd error.
Anyone have any ideas?
Thanks,
S.D.
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