[OpenLayers-Users] Transparent Overlays

[Andreas Hocevar]

Hi,

after "format: 'image/png'", add ", transparent: true".

That's it.

Regards,
Andreas.

On Jul 9, 2010, at 02:10 , Kalyan Kamepalli wrote:

> Hello Group,
>  
> I have a base layer and a couple of overlays. The base layer has some objects to display and both the overlays have nothing to display. But the total map shows nothing but just a white sceen. I suspect the overlays hiding the base layer. How do I set these overlays transparent so that I can see the base layer and on top of that these overlays ?
>  
> My WMS layer definitions are as below
>  
> var gisLayer = new OpenLayers.Layer.WMS( 'Gis Layer' , wmsURL , { layers: 'gis', styles: 'Default', format: 'image/png' } , { buffer: 1 , isBaseLayer: false } );
>    var adminLayer = new OpenLayers.Layer.WMS( 'Admin Layer' , wmsURL , { layers: 'admin', styles: 'Default', format: 'image/png' } , { buffer: 1 , isBaseLayer: false } );
>    var cadLayer = new OpenLayers.Layer.WMS( 'Cadastre Layer' , wmsURL , { layers: 'cadastre', styles: 'Default', format: 'image/png' } , { buffer: 1 , isBaseLayer: true} );
>  
> I am sorry, I have a very little knowledge in Java Script and so I keep posting these little things.
>  
> Thanks,
> Kalyan
>  
> 
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.