[Users] LegendGraphics in Layer Tree [Sec=Unclassified]

[Matt Priour]

To make the layer nodes themselves each have unique graphic icon, you can do 
2 possible things.
1. Don't use an overlay layer container or other such preconfigured layer 
tree loader node type. Instead, use 'nodeType:"layerNode"' and give each 
layer node an 'icon' property (to put the legend graphic url directly in the 
tree configuration) or an 'iconCls' (to do it via CSS background images)

2. Go ahead and use one of the GeoExt layer tree loader node types and in 
the baseAttrs property of the loader, assign a renderer function or assign a 
function to the 'icon' attribute to allow you to calculate the icon path 
automattically

If you just want to include a legend somewhere in the layertree panel, then 
you can use one of the GeoExt legend widgets for that.

Matt Priour
Kestrel Computer

--------------------------------------------------
From: "Miles Jordan" <Miles.Jordan at aad.gov.au>
Sent: Monday, July 05, 2010 7:39 PM
To: <users at geoext.org>
Subject: Re: [Users] LegendGraphics in Layer Tree [Sec=Unclassified]

> Miles Jordan wrote:
>> Hi,
>>
>> Is it possible to put an icon representing each layer (legendgraphic)
>> in the layer tree? I've been searching for a good example to no avail.
>>
>
> I take it by the null response that it's not a straight forward thing in 
> GeoExt to have a layer switcher that also displays a legend. Is that not a 
> fundamental part of web mapping? I'm sure it can't be too hard, but either 
> way, I'd really appreciate it if somebody could let me know! I just don't 
> want to reinvent the wheel.
>
> Thanks,
>
> Miles
>
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