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Hello all, continuing with some GeoExt tutorials I have another question... How to render layers from layerlist to a map? Addding layers manully to the map (map.addlayers) and creating a layerlist from these map layers works fine, even to control the visiblity using checkboxes and radio buttons. Now I want to make visible only one layer at time starting with an initial layer. So I created a layerlist and add 'checkedGroup' to the children. Is there a way to add only the active layer to the map object at runtime? Here the relevant code: var layerList =[{ ... { text: 'Population', leaf: false, expanded: true, children: [{ nodeType: 'gx_layer', layer: POP, text: 'Population density [inh./ha]', leaf: true, checkedGroup: 'maps', checked: false }] },... var tree = new Ext.tree.TreePanel({ region: 'west', title: 'Available Maps', width: 250, autoScroll: true, enableDD: true, lines: false, collapsible:true, loader: new Ext.tree.TreeLoader({ applyLoader: false }), root: { nodeType: 'async', children: layerList , text: 'maps' }, rootVisible: false }); ... best regards, Christian -------------------------------------------------------------------------------------------- Christian Gadge Helmholtz-Zentrum für Umweltforschung GmbH - UFZ |
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