Hi! A tip that may help: maybe there is an easier way to do what you want.
You can create a treePanel by using the "GeoExt.tree.WMSCapabilitiesLoader" class. Then, in GeoServer, you can fill in the "default WMS path" field of each layer: http://docs.geoserver.org/stable/en/user/webadmin/data/layers.html This field allows GeoServer to create a hierarchy in the WMS Capabilities document of your GeoServer. Then, this hierarchy is identified by the treePanel, that creates automatically themes and sub-themes. Geoffrey Le Mon, 26 Sep 2011 15:18:18 +0200, Kathrin Babiker <k.babi...@gmx.de> a écrit: > Hi, > I need an idea to build a layertree with consists not only of baselayers > and overlaylayers but also of different sublayers like this: > 1 - background > 2 - theme 1 > 2-1 theme 1 subpoint A > 2-1-1 subsubpoint A-a > 2-1-2 subsubpoint A-b > 2-1-3 subsubpoint A-c > 2-2 theme 1 subpoint B > 2-2-1 subsubpoint B-a > 2-2-2 subsubpoint B-b > 3 - theme 2 > 3-1 theme 2 subpoint A > ... > I mean it should look like a folder structure we know from our own PC. > > I tried a layout (taken from tree.js from geoext) with OpenLayers, GeoExt > and ExtJS but the structure is not going deep enough. The layers at > subsubpoints should come from geoserver. > > > My code is like this: > > var treeConfig = new OpenLayers.Format.JSON().write([{ > nodeType: "gx_baselayercontainer" > }, { > nodeType: "gx_overlaylayercontainer", > expanded: true, > // render the nodes inside this container with a radio > button, > // and assign them the group "foo". > loader: { > baseAttrs: { > radioGroup: "foo", > uiProvider: "layernodeui" > } > } > }, { > nodeType: "gx_layer", > layer: "Europäische Union (Gruppe)", > isLeaf: false, > // create subnodes for the layers in the LAYERS param. If we > assign > // a loader to a LayerNode and do not provide a loader > class, a > // LayerParamLoader will be assumed. > loader: { > param: "LAYERS" > } > }], true); > > // create the tree with the configuration from above > tree = new Ext.tree.TreePanel({ > border: true, > region: "west", > title: "Ebenen", > width: 200, > split: true, > collapsible: true, > collapseMode: "mini", > autoScroll: true, > > loader: new Ext.tree.TreeLoader({ > // applyLoader has to be set to false to not > interfer with loaders > // of nodes further down the tree hierarchy > applyLoader: false, > uiProviders: { > "layernodeui": LayerNodeUI > } > }), > root: { > nodeType: "async", > // the children property of an > Ext.tree.AsyncTreeNode is used to > // provide an initial set of layer nodes. We use the > treeConfig > // from above, that we created with > OpenLayers.Format.JSON.write. > children: Ext.decode(treeConfig) > }, > > rootVisible: false, > lines: false > > }); > > Is there anyone who can help me? There MUST be any possibility to get > well > structured tree, or?! > Thanks > Kathrin > -- -- Geoffrey BRUN Étudiant en master SIGMA Stagiaire au PNR du Haut-Languedoc Hameau de Brassac Saint-Pons de Thomières +33 (0) 6 77 74 44 16 _______________________________________________ Users mailing list Users@geoext.org http://www.geoext.org/cgi-bin/mailman/listinfo/users
