Hi Thomas
You could try to reduce the image size using 8bit PNGs, see the 3rd
output format in http://mapserver.org/mapfile/outputformat.html.
Peter
On 04/12/2012 06:20 AM, Thomas Joseph wrote:
We have recently upgraded from Mapserver 5.7 to 6.0 and although the
AGG anti-alias lines look great the output image size has increased
significantly from the previous rendering without anti-alias. I was
just wondering if there is a way to turn off the anti-alias for
polyline rendering in Mapserver 6.0. From the documentation it
appeared that the previous GD driver did not include anti-alias by
default. We have attempted to switch the outputformat from the new
default AGG to the previous GD driver using the outputformat directive
in the map file as shown below. This changed the image size slightly
suggesting that mapserver was using a different driver to render,
however the lines were still rendered with anti-alias on and the image
was still relatively large compared to previous mapserver verison.
OUTPUTFORMAT
NAME "GDpng"
DRIVER GD/PNG
MIMETYPE "image/png"
IMAGEMODE RGB
EXTENSION "png"
END
Previously in Mapserver 5.7 we did not specify an outputformat we
simply used IMAGETYPE PNG24 and the output was generated without
anti-alias. Any suggestions would be greatly appreciated. If you
need additional information let me know.
tom
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Peter Hopfgartner
http://www.r3-gis.com
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