[Mapserver-users] Question about GetLegendGraphic

[Yewondwossen Assefa]

Stephanie,

  The implementation right now does not really allow you to request 
legends for a specific class.

   Here is an idea of implemetation : How about using the class name as 
a mean to regoup classes. Classes having the same name could be 
considered of being of the same "Style" (Style as defined in OGC).  I am 
not sure but I do not think that class names must necessarly be unique.
Assuming that class names are not unique, a user could use the Style 
parameter in the GetLegendGraphic request to get a legend for a specific 
class (or classes).

  There might be some issues that I do not see here, but what do you 
think about this approch ?

Later,

Choi,Stephanie [Ontario] wrote:
> Hi all,
> 
> I got a question about GetLegendGraphic request in Mapserver.  I can 
> sucessfully use GetLegendGraphic to get any legend icons without any 
> problem when a layer with one class object and one symbol sign.  But 
> when a layer contains more than one class objects and symbols in it then 
> I have a question about it :)  I can get all the symbols that I specific 
> in a layer but the problem I have right now is those symbols are 
> overlapped with each other when I make a GetLegendGraphic request.  I 
> use the GetLegendRequest as followed:
> 
> _http://localhost/cgi-bin/wms?version=1.1.1&Layer=test&request=GetLegendGraphic&format=image/png_ 
> <http://localhost/cgi-bin/wms?version=1.1.1&Layer=test&request=GetLegendGraphic&format=image/png> 
> 
> 
> I just wonder if there is a way to get legend icon with each symbol I 
> specified in this layer.  Could anyone give me a hint ?
> 
> Any help would be greatly appreciated.
> 
> Thanks in advance,
> 
> Stephanie  
> 


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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
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