[Users] Layer's Visibility and Tree Panel

[Vince Lotito]

Hi Andreas

Thank you!

Vince
 

> -----Original Message-----
> From: Andreas Hocevar [mailto:ahocevar at opengeo.org]
> Sent: Tuesday, February 23, 2010 6:15 PM
> To: Vince Lotito
> Cc: users at geoext.org
> Subject: Re: [Users] Layer's Visibility and Tree Panel
> 
> Hi,
> 
> use measureLayer.setVisibility(true/false) instead of
> measureLayer.display(true/false) to show/hide the layer, otherwise no
> event will get fired and the TreeNode does not know.
> 
> Regards,
> Andreas.
> 
> Vince Lotito wrote:
> > I am trying to synchronize the visibility of a vector layer where I
> persist measurement sketch.  So during the create of the measure control I
> am display the layer as follows:
> >
> >     // create the line measure tool
> >     var lineMeasure = new OpenLayers.Control.Measure(
> >             OpenLayers.Handler.Path, {
> >                 persist: false,
> >                 geodesic: true,
> >                 displaySystem: "english",
> >                 callbacks: {
> >                     create: function() {
> >                          measureLayer.display(true);     // forcing the
> layer to display
> >                         }
> >             },
> >                 handlerOptions: {
> >                         layerOptions: {styleMap: styleMap}
> >                 }
> >             }
> >     );
> >
> > I have a tree panel with the layers as follows:
> >
> > var tree = new Ext.tree.TreePanel({
> >         border: true,
> >         region: "north",
> >         title: "RPD Layers",
> >         width: 200,
> >         minSize: 150,
> >         split: true,
> >         collapsible: true,
> >         autoScroll: true,
> >         loader: new Ext.tree.TreeLoader({
> >             applyLoader: false,
> >         }),
> >         root: {
> >             nodeType: "async",
> >             children :[{
> >                                     nodeType: "gx_baselayercontainer"
> >                             }, {
> >                                     nodeType:
> "gx_overlaylayercontainer",
> >                                     expanded: true,
> >                                     loader: {
> >                                          filter: function(record) {
> >                                                   if (
> (record.get("layer").name.indexOf("Measure") == 0) ||
> >
> (record.get("layer").name.indexOf("Property") == 0) ||
> >
> (record.get("layer").name.indexOf("RPD") == 0) ||
> >
> (record.get("layer").name.indexOf("Open") == 0)) {
> >                                                        return false;
> >                                                   }
> >                                                   return true;
> >                                                 }
> >                                     }
> >                             }, {
> >                                     nodeType: "gx_layercontainer",
> >                                     text: "Graphics",
> >                                     expanded: true,
> >                                     loader: {
> >                                          filter: function(record) {
> >                                                 if (
> (record.get("layer").name.indexOf("Measure") == 0) ||
> >
> (record.get("layer").name.indexOf("Property") == 0)) {
> >                                                       return true;
> >                                                 }
> >                                                 return false;
> >
> >                                         }
> >                                     }
> >                 }]
> >
> >         },
> >         rootVisible: false,
> >         lines: false
> >     });
> >
> > How can I synchronize the tree child node's (for the vector layer) check
> box with the visibility if the layer in the map panel?
> >
> > Vince
> >
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Users mailing list
> > Users at geoext.org
> > http://www.geoext.org/cgi-bin/mailman/listinfo/users
> 
> 
> --
> Andreas Hocevar
> OpenGeo - http://opengeo.org/
> Expert service straight from the developers.