[OpenLayers-Users] getDataExtent

[Marc Jansen]

Hi Tim,

what do you get when you do an alert(typeof gebaeude) in the console of 
firebug? If you see the alert popping up with 'undefined', the variable 
you are trying to use a vartiable that is not defined in the context you 
call it (that would be window, in your case). Is gebaeude a global 
variable? How is the layer instanciated?

Regards,
Marc

Tim Balschmiter schrieb:
> Hello List, 
> i´ve got a mapobject with some layers.
>  
> gebaeude = new OpenLayers.Layer.Vector("gebaeude",{styleMap: 
> gebaeudeStyle});
> map.addLayer(gebaeude);
>
> the layers were filled with a geoext.data.store:
>
> gebaeudeStore = new GeoExt.data.FeatureStore({
>                layer: gebaeude,
>                autoDestroy:true,
>                proxy: new GeoExt.data.ProtocolProxy({
>                protocol: new OpenLayers.Protocol.WFS({
>                          url:  "http://localhost/geoserver/wfs",
>                          featureType: "rfhgebaeude",
>                          featureNS: "http://www.rostock.de/",
>                          srsName: "EPSG:2398",
>                          version: "1.1.0",
>                          extractAttributes: true,
>                          filter: new OpenLayers.Filter.Logical({
>                                   type:OpenLayers.Filter.Logical.AND,
>                                   filters:[]
>                                   })                               
>                          })
>                })})
>
> now i am searching for a way to get the maxextent. after  loading the 
> page i am using alert(gebaeude.getDataExtent()) in the console of the 
> firebug. but i only get gebaeude.getDataExtent is not a function.
> what can i do to get the maxextent of this kind of layer?
>
> thanks for helping me
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