[Users] problem using 'legendURL'

karsten vennemann karsten at terragis.net
Wed Nov 24 08:30:58 CET 2010

Hi all, 
I added a legend-panel to my OL page and that works great for all legends that are vector based WMS layers. I also added multiple TileCache layers to the map panel. For those I added legendURL parameters to define how the legend should look in the legendPanel . The legend url is a link to a static png image. However, whatever I try I am running into problems that the legend for the TileCache layers does not show up.
What is the proper and easiest way to define the legenurls for the two layers I have been using  and to use the png images I already have... see below 
My latest attempt was just to define the legenurl as a parameter see below but that does not work ....
var publiclands = new OpenLayers.Layer.WMS("Public Lands", "/tilecache/tilecache.py", {layers: 'calipc_public_lands', 'transparent': true, 'legendURL': 'http://myurl.net/legend/publiclands_legend.png'}, {isBaseLayer: false, 'opacity': 0.6, 'visibility': true} );
var watersheds = new OpenLayers.Layer.WMS("Watersheds","/tilecache/tilecache.py", {layers: 'calipc_watersheds', 'transparent': true, 'legendURL': ''http://myurl.net/legend/watersheds_legend.png'}, {isBaseLayer: false, 'opacity': 1, 'visibility': true} );
my layerstore looks like this
var legendLayerStore = new GeoExt.data.LayerStore({
            map: map,
            layers: [publiclands,watersheds,quads,counties]
(quads and counties legend is working)
        legendPanel = new GeoExt.LegendPanel({
            title: 'legend',
                collapsed : false,             
                collapsible : true,
                defaults: {
                labelCls: 'mylabel',
                style: 'padding:5px'
            bodyStyle: 'padding:5px',
            // width: 350,
            autoScroll: true,
            layerStore: legendLayerStore
I know that the 'legendURL' parameter is capitalized by OL , but I am not sure that is the problem that this is not working for me. If this is not the correct approach how can it be done ?
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