generateSLD returns an empty SLD

[Yewondwossen Assefa]

Is it possible that the layers status is OFF (seems like that looking at 
the layer definition)? It should be set to ON or  DEFAULT

Later,

Gilles Bassière wrote:
> Hi list
> 
> I try to use the generateSLD method but can't get it to work.
> 
> I have the following code (adapted from Mapserver how-to) :
> 
> <?php
> 
> // define variables
> define("MAPFILE", "/home/gba/public_html/and/test.map");
> define("MODULE", "php_mapscript.so");
> 
> // load the mapscript module
> if (!extension_loaded("MapScript")) dl(MODULE);
> 
> // open map
> $oMap = ms_newMapObj(MAPFILE);
> 
> foreach ( $oMap->getAllLayerNames() as $layerName )
> {
>   $oLayer = $oMap->getLayerByName($layerName);
> 
>   // generate the sld for that layer
>   $SLD = $oLayer->generateSLD() ;
> 
>   // return SLD to client
>   echo $SLD ;
> }
> ?>
> 
> I have several layers which are very simple and all look like this one :
> 
>   # LAYER golf -------------------------------------
>   LAYER
>      NAME             "golf"
>      GROUP            "background"
>      CONNECTIONTYPE   postgis
>      CONNECTION       "host=localhost dbname=test user=test password=xxx 
> port=5432"
>      DATA             "wkb_geometry FROM golf"
>      STATUS           off
>      TYPE             polygon
> 
>      CLASS
>         NAME          "Golf courses"
>         STYLE
>            COLOR      203 216 195
>            ANTIALIAS  true
>         END
>      END
> 
>      PROJECTION
>         "init=epsg:4326"
>      END
> 
>      METADATA
>         "wms_title"   "Golf courses"
>         "wms_srs"     "EPSG:4326"
>         "wms_extent"  "3.3 50.75 7.25 53.6"
>      END
>   END
> 
> The PHP script above returns the following output :
> 
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> <StyledLayerDescriptor version="1.0.0" 
> xmlns="http://www.opengis.net/sld" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:xlink="http://www.w3.org/1999/xlink" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/sld 
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
> </StyledLayerDescriptor>
> 
> This output is a valid SLD, I agree... But I expected to find the 
> parameters set up in the CLASS element, how should I proceed ? What is 
> going wrong there ?
> 


-- 
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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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