[OpenLayers-Users] How to have multiple wms layers into one Openlayers.WMS layer

[Andreas Hocevar]

David Alda Fernandez de Lezea wrote:
> Hello,
>  
> I'm trying to have an Openlayers.WMS layer that should contain 2 WMS 
> layers, served by MapServer, using the following code (in theory this 
> is possible):
>  
> var twms = new OpenLayers.Layer.WMS( "Sigpac",
>    "http://192.168.1.65/cgi-bin/mapserv.exe?map=../htdocs/MFD/ejemplo_wms.map", 
>
>    { transparent: 'true', layers: 'ParcelasSigpac, 
> RecintosSigpac'},{strategies: [new 
> OpenLayers.Strategy.BBOX()],isBaseLayer: false, buffer:1, 
> gutter:0,visibility: false, units: 'm', maxExtent: new 
> OpenLayers.Bounds(463506.9978541628, 4702558.185239193, 
> 603185.4988525142, 4811754.780732273)} );

Try to remove the comma between the layers:
layers: 'ParcelasSigpac,RecintosSigpac'

Regards,
Andreas.


>    
> map.addLayer(twms);
>  
> but no layer is displayed. Instead I get a MapServer error: 
> msWMSLoadGetMapParams(): WMS server error. Invalid layer(s) given in 
> the LAYERS parameter.
>  
> Is there anything special that I have to configure or am I doing 
> something wrong??
>  
> On a totally differente subject. I use Tilecache for raster files. It 
> makes sense using Tilecache for non-raster layers, i.e. for wms vector 
> layers??
>  
> Thanks in advance.
>  
>
>  
>
>  
>
> Un saludo,
>
>  
>
> ··················································································
>
> *David Alda Fernández de Lezea*
>
> Lurralde eta Biodibertsitate Saila / Dpto. de Territorio y Biodiversidad
>
>  
>
> *IKT*
>
> Granja Modelo s/n · 01192 · Arkaute (Araba)
>
>
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> <mailto:dalda at ikt.es>                                web: www.ikt.es 
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.