To achieve this, you have to use a style that uses opacity on the server side.
Andreas. On Jun 21, 2012 7:56 PM, "julia paredes" <[email protected]> wrote: > Hi all, > > If I have a group layer definition such as the following : > > var Test = new OpenLayers.Layer.WMS( > "Group Layer", mapserverUrl, > { > map: "C:/Users/Administrator/map.map", > layers: [ > "First", > "Second", > "Third" > ], > format: "image/png", > transparent: "true" > } > , > { > isBaseLayer: false, > visibility: false, > opacity: opa > } > ); > > Is there a way I could change the opacity of just one of the layers > belonging to the group layer? > Before adding a group layer I was using jquery to add a slider and a drop > down menu to select a layer to change the opacity. > I am not sure if the layer opacity slider provided by GeoExt will make > this easier or if there is a way to access a particular layer in the group > layer by doing something like Test.layers[0] > > Any ideas? > > Thanks in advance > > _______________________________________________ > Users mailing list > [email protected] > http://www.geoext.org/cgi-bin/mailman/listinfo/users > >
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