SLD and ExternalGraphic formats

Yewondwossen Assefa assefa at DMSOLUTIONS.CA
Wed May 24 15:22:14 EDT 2006


Tom,

  This was a fixed before the 4.8 release ((Bug 1430). Could you confirm 
that the server is running that version at least ?

Later,

Kralidis,Tom [Burlington] wrote:
> Hi,
> 
> We're using an SLD to custom symbolize some point data with an
> ExternalGraphic ref, and resulting behaviour is as expected, until we
> try to symbolize with ExternalGraphic.
> 
> Snippet below:
> 
> <ExternalGraphic>
>  <OnlineResource xlink:type="simple"
> xlink:href="http://eman-rese.ca/logos/gif/EMAN_colour_black_text.gif"/>
>  <Format>GIF</Format>
> </ExternalGraphic>
> 
> ...however, when I change the Format element to "image/gif", the OGC:WMS
> server (powered by MapServer) does not symbolize based on the
> ExternalGraphic def.
> 
> When looking at latest CVS, mapogcsld.c, line 2146, it looks like they
> take OGC:WMS 1.0.0 and 1.1.+ style of format defs (i.e. "GIF", "PNG",
> "image/gif", "image/png"), but this is not evident in the GetMap output.
> 
> Examples:
> 
> Working SLD:
> 
> http://devgeo.cciw.ca/ms_tmp/pw7.sld
> 
> Working GetMap / SLD request:
> 
> http://www.eman-rese.ca/cgi-bin/mapserver/naturewatch.asp?SERVICE=WMS&VE
> RSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A4326&BBOX=-125.2242339821858,20.95
> 844971963387,-36.22423397781418,76.58344972236614&WIDTH=560&HEIGHT=350&L
> AYERS=plantwatch&STYLES=&FORMAT=image%2Fpng&BGCOLOR=0xFFFFFF&TRANSPARENT
> =FALSE&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&sld=http://devgeo.cci
> w.ca/ms_tmp/pw7.sld
> 
> Non-Working SLD (only difference is changing <Format>GIF</Format> to
> <Format>image/gif</Format>
> 
> http://devgeo.cciw.ca/ms_tmp/pw8.sld
> 
> Non-Working GetMap / SLD request:
> 
> http://www.eman-rese.ca/cgi-bin/mapserver/naturewatch.asp?SERVICE=WMS&VE
> RSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A4326&BBOX=-125.2242339821858,20.95
> 844971963387,-36.22423397781418,76.58344972236614&WIDTH=560&HEIGHT=350&L
> AYERS=plantwatch&STYLES=&FORMAT=image%2Fpng&BGCOLOR=0xFFFFFF&TRANSPARENT
> =FALSE&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&sld=http://devgeo.cci
> w.ca/ms_tmp/pw8.sld
> 
> ..Tom
> 


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Assefa Yewondwossen
Software Analyst

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

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