MapServer SLD RasterSymbolizer

[Yewondwossen Assefa]

Hi There,

  We could maybe use the label element in the ColorMapEntry if available 
and if not use the quantity value or the exprsssion to set the class 
name.  In this case, the Rule Name value would not affect the classes 
created based on a raster symbolizer.  Is this acceptable ?

Later,


Kralidis,Tom [Burlington] wrote:
>  
> Sorry, meant one ColorMap per Rule :)
> 
> 	-----Original Message----- 
> 	From: UMN MapServer Users List on behalf of Kralidis,Tom [Burlington] 
> 	Sent: Sat 22-Jul-06 11:01 
> 	To: MAPSERVER-USERS at LISTS.UMN.EDU 
> 	Cc: 
> 	Subject: Re: [UMN_MAPSERVER-USERS] MapServer SLD RasterSymbolizer
> 	
> 	
> 
> 
> 	The OGC:SLD 1.0.0 schema allows for one ColorMap element with 0 or more ColorMapEntry elements.
> 	
> 	MapServer typically picks up Rule/Name and applies them as a legend title.  For rasters, because of the way the schema is defined, I think MapServer should be picking up ColorMapEntry/@label when doing raster legends, but then what happens when someone creates a Rule/Name value earlier?
> 	
> 	..Tom
> 	
> 	
> 	
> 	        -----Original Message-----
> 	        From: UMN MapServer Users List on behalf of Van Ulden, Joost
> 	        Sent: Fri 21-Jul-06 18:57
> 	        To: MAPSERVER-USERS at lists.umn.edu
> 	        Cc:
> 	        Subject: [UMN_MAPSERVER-USERS] MapServer SLD RasterSymbolizer
> 	       
> 	       
> 	
> 	        Hi all,
> 	       
> 	        I am unsure how the raster symbolizer is supposed to work in MapServer.  Do I create one Rule in the SLD with one ColorMap that has one or more ColorMapEntries?  Or can I create a rule for each ColorMapEntry? Either way works (works using a filter too!!!) but ColorMapEntries can't be given a name.  It is preferable from my point of view to create a rule for each ColorMapEntry so that a decent legend can be generated.
> 	       
> 	        Thoughts anyone?
> 	       
> 	        Joost
> 	       
> 	
> 	
> 


-- 
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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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