[mapserver-users] Named WMS styles - CLASSGROUP and GROUP

[lars.schylberg at blixtmail.se]

Hi,

I have tried to understand how to create named styles in a WMS configuration, for some time.
I would like to have one style that is color and one style for grey scale.

The manual says the You can do that:

http://mapserver.org/ogc/sld.html#named-styles-support
 
With the basic set up I get this error when I try and to specify: styles=grey or styles=color

msWMSLoadGetMapParams(): WMS server error. Invalid style (color). Mapserver is expecting an empty string for the STYLES : STYLES= or STYLES=,,, or using keyword default  STYLES=default,default, ..

I have also looked at:

http://mapserver.org/ogc/inspire.html#style-section-for-root-layer-and-possibly-existing-group-layers

but I haven't understood that clearly. I don't understand how You set up the different style options.

When I try to play with wms_style or wms_style_name in main WEB METADATA block 
and web_style_group_name in layer METEDATA block I get this this error:

msWMSLoadGetMapParams(): WMS server error. Style (color) not defined on root layer. or
msWMSLoadGetMapParams(): WMS server error. Style (grey) not defined on root layer.

I have created one example mapfile that is easy to understand and that should isolate the problem.
I works fine with styles= set to nothing.

Test url used:

http://localhost/cgi-bin/mapserv?map=/_YOUR_PATH_/style_test.map
&SERVICE=WMS&REQUEST=Getmap&VERSION=1.1.1
&LAYERS=circles,squares
&styles=grey
&srs=EPSG:4326
&BBOX=0,0,20,15
&FORMAT=application/openlayers
&WIDTH=200&HEIGHT=150

or

mapserv -nh "QUERY_STRING=map=/_YOUR_PATH_/style_test.map\
&SERVICE=WMS\
&REQUEST=Getmap\
&VERSION=1.1.1\
&LAYERS=ST\
&styles=grey\
&srs=EPSG:4326\
&BBOX=0,0,20,15\
&FORMAT=png\
&WIDTH=200&HEIGHT=150" > test.png

/Lars

testfile: style_test.map
----------------------------------
MAP
    NAME ST
    EXTENT 0 0 20 15
    SIZE 200 150
    UNITS DD
    IMAGECOLOR 200 200 200
    CONFIG "MS_ERRORFILE" "/tmp/style_test.log"
    DEBUG 5

    OUTPUTFORMAT
      NAME 'AGG'
      DRIVER AGG/PNG
      IMAGEMODE RGB
    END

    WEB
      IMAGEPATH "/tmp/ms_tmp/"
      IMAGEURL "/ms_tmp/"
      METADATA
        "wms_srs" "EPSG:3006 EPSG:4326"
        "ows_enable_request" "*" 
      END
    END

    PROJECTION
      "init=epsg:4326"
    END

    SYMBOL
        NAME "circle"
        TYPE ELLIPSE
        FILLED TRUE
        POINTS 1 1 END
    END
    SYMBOL
        NAME "square"
        TYPE VECTOR
        FILLED TRUE
        POINTS 0 0 0 1 1 1 1 0 0 0 END
    END
#
# Start of layer definitions
#
    LAYER
        NAME "circle objects"
        TYPE POINT
        FEATURE POINTS 10 5 END END
        FEATURE POINTS 15 10 END END
            METADATA
                "wms_title" "Cirles"
                "wms_enable_request"   "*"
                "wms_layer_group" "/ST/circles"
            END
        STATUS on
        CLASSGROUP "color"
        CLASS
            NAME "circle-color"
            GROUP "color"
            STYLE
                COLOR 255 0 0
                SIZE 15
                WIDTH 1
                SYMBOL "circle"
            END
        END 
        CLASS
            NAME "circle-grey"
            GROUP "grey"
            STYLE
                COLOR 50 50 50
                SIZE 15
                WIDTH 1
                SYMBOL "circle"
            END
        END 
    END # Layer
    LAYER
        NAME "square objects"
        TYPE POINT
        FEATURE POINTS 10 10 END END
        FEATURE POINTS 15 5 END END
            METADATA
                "wms_title" "Squares"
                "wms_enable_request"   "*"
                "wms_layer_group" "/ST/squares"
            END
        STATUS on
        CLASSGROUP "color"
        CLASS
            NAME "square-color"
            GROUP "color"
            STYLE
                COLOR 0 0 255
                SIZE 15
                WIDTH 1
                SYMBOL "square"
            END
        END 
        CLASS
            NAME "square-grey"
            GROUP "grey"
            STYLE
                COLOR 100 100 100
                SIZE 15
                WIDTH 1
                SYMBOL "square"
            END
        END 
    END # Layer
END # Map File






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