[mapserver-users] Pie chart not showing

[juliap]

Hi all

I want to create a pie chart for some data. The problem that I'm facing is
that i'm not getting any errors when I test the layer using shp2img;
however, I don't get the image. This is my mapfile:

MAP
        EXTENT -20037508 -20037508 20037508 20037508
        SIZE 400 400
        IMAGETYPE PNG
LAYER
    NAME "Survey"
    TYPE CHART
    CONNECTIONTYPE OGR  
    CONNECTION "MSSQL:server=myserver;database=data;uid=me;pwd=key" 
    DATA "SELECT Option, COUNT(*) AS RESULT FROM Survey GROUP BY Option"
    PROCESSING "CHART_TYPE=pie"
    PROCESSING "CHART_SIZE=30"
    STATUS ON
    CLASSITEM 'Option'
    CLASS
        EXPRESSION '1'
        NAME "one"
        STYLE
        SIZE [RESULT]
        COLOR 255 244 237
        END
    END
    CLASS
        EXPRESSION '2'
        NAME "two"
        STYLE
        SIZE [RESULT]
        COLOR 255 217 191
        END
    END
    CLASS
        EXPRESSION '3'
        NAME "three"
        STYLE
            SIZE [RESULT]
            COLOR 255 186 140
        END
    END
    CLASS
        EXPRESSION '4'
        NAME "Four"
        STYLE
            SIZE [RESULT]
            COLOR 255 186 0
        END
    END
END
END


Any ideas of what could be missing in my mapfile?

Thanks 

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