[UMN_MAPSERVER-USERS] antialias lines

[Bailey Landress]

Trying to fix jagged lines.  See anything wrong with the Mapfile below? 
When I change IMAGEMODE to RGBA the background of my map turns black.  Also
if I take out   SYMBOL "cartoline" from the Style tag under Layer, I do not
see any change in regard to antialiasing.  Any help would be greatly
appreciated.  Thanks.

MapServer version 4.10.2

In MAP:

IMAGETYPE png24

OUTPUTFORMAT
          NAME png24
          DRIVER "GD/PNG"
          MIMETYPE "image/png"
          IMAGEMODE RGB
          EXTENSION "png"
END   

SYMBOL
          NAME 'cartoline'
          TYPE cartoline
          LINECAP round
          LINEJOIN round
          LINEJOINMAXSIZE 3
END



LAYER
         NAME "Contours"
         STATUS on
         TYPE LINE
         DATA "Contours"
         SYMBOLSCALE 24000
         TRANSPARENCY alpha
         CLASS
                  STYLE
                           COLOR 000 000 000
                           SYMBOL "cartoline"
                           ANTIALIAS TRUE
                           WIDTH 2
                   END
         END
END     


Bailey