[Chameleon] Dynamic SLD - variable passing problem

[Paul Spencer]

Timothy,

I don't see anything wrong with this approach in general.  Do you mean 
that the value of %study_id% is not being put into the map file?  Or 
that the sld url is not used when requesting the wms layer?

If the value of %study_id% is not being correctly replaced, I think that 
has to do with how mapscript processes the map file ... variable 
replacement in mapfiles is not something that I know a lot about and 
specifically I don't know if it will work the way you seem to be trying 
it.  My approach to this would be to write a widget that would fix up 
the metadata on selected layers ...

If the wms_sld_url metadata is not being passed along with the WMS 
request, then that is a different problem (perhaps Assefa can comment on 
this?)

Cheers,

Paul



Pascoe,Tim [Burlington] wrote:
>         I’m working on setting up a dynamically generated SLD, in order 
> to provide user-defined filtering for my application. The SLD is being 
> applied to a virtual OGR layer, from my database. I can do it with a raw 
> request to mapserver by including the SLD= tag, and a path to my php 
> scrip which returns the SLD document. However, when I include the SLD in 
> the metadata for the layer, it seems as if the variable is not passed 
> into the SLD script from the CGI forms. The source for the layer is an 
> OGR/VRT being served as a WMS.
> 
> 
> My layer is set up as follows:
> 
>   LAYER
> 
>     NAME "CABINPoints"
> 
>     GROUP "Sample Points"
> 
>     STATUS ON
> 
>     TYPE RASTER
> 
>     TOLERANCE 5
> 
>     TOLERANCEUNITS PIXELS
> 
>     TEMPLATE "tt.html"
> 
>     CONNECTIONTYPE WMS
> 
>     CONNECTION 
> "http://localhost/scripts/mapserv.exe?map=C:/Documents%20and%20Settings/TimP/My%20Documents/CABIN/Maps/map/pointswms.map"
> 
>     METADATA
> 
>           "wms_onlineresource" "http://localhost/scripts/mapserv.exe?"
> 
>           "wms_sld_url" 
> "http://localhost/CABIN/Maps/map/study_sld_script.php?study_id=%study_id%"
> 
>         "wms_title" "CABIN Points test layer"
> 
>         "wms_abstract" "Test Access to CABIN SQL-Server Database on 
> ECBURAS1"
> 
>         "wms_srs" "EPSG:42304"
> 
>         "wms_name" "CABINPoints"  # Eventually change this to the name 
> of the Project being mapped
> 
>         "wms_formatlist" "image/png,image/gif,image/jpeg,image/wbmp"
> 
>         "wms_format" "image/png"
> 
>         "selected" "0"
> 
>         "wms_server_version" "1.1.1"
> 
>         "wms_title" "Site Location"
> 
>     END
> 
>     PROJECTION
> 
>       "init=epsg:4326"
> 
>     END
> 
>     DUMP TRUE
> 
>   END
> 
> Thanks…
> 
> Timothy Pascoe
> 
> Environment Canada / Environnement Canada
> Canada Centre for Inland Waters / Centre Canadien des Eaux Intérieures
> 867 Lakeshore Road / 867, chemin Lakeshore
> Burlington, Ontario / Burlington (Ontario)
> 
> L7R 4A6
> 
> Tel/Tél: (905) 336-6239
> Fax/Téléc: (905) 336-4699
> E-mail/C. élec: ___tim.pascoe at ec.gc.ca_ <mailto:tim.pascoe at ec.gc.ca>
> Government of Canada/Gouvernement du Canada
> 
> 
> ------------------------------------------------------------------------
> 
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> Chameleon mailing list
> Chameleon at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/chameleon

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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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