[OpenLayers-Users] extent has no properties

[Arnd Wippermann]

Is the layer a vector layer? The control will only work for a vector layer,
i would think.
 
Arnd Wippermann
 
  _____  

Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
Auftrag von Bas Couwenberg
Gesendet: Mittwoch, 24. September 2008 16:50
An: users at openlayers.org
Betreff: [OpenLayers-Users] extent has no properties


Hello,
 
I made a custom control in a separate *.js file which I want to use on my
WMS layer to select a point there and with a WFS GetFeature request retrieve
the geometry. The top part of the class looks as followed:
 
------------------
 Select = OpenLayers.Class(OpenLayers.Control, {     
 
     layer: null,
             
        defaultHandlerOptions: {
            'single': true,
            'double': false,
            'pixelTolerance': 0,
            'stopSingle': false,
            'stopDouble': false
        },
        initialize: function(layer,options) {
         this.layer = layer;
            this.handlerOptions = OpenLayers.Util.extend(
                {}, this.defaultHandlerOptions
            );
            OpenLayers.Control.prototype.initialize.apply(
                this, arguments
            ); 
            this.handler = new OpenLayers.Handler.Click(
                this, {
                    'click': this.trigger
                }, this.handlerOptions
            );
        }, 
 
------------------------
When I user the 'layer' parameter :  

var

selectCcontrol = new Select(wozSelectLayer, {'displayClass':
'olControlSelectFeature'}) ;I get the error: 
extent has no properties
this.extent = extent.clone();
Renderer.js (line 98)
I need the layer in this class and without it the eror doesn't occur. What
am I doing wrong?
 
Best regards,
 
Bas Couwenberg
 
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