[mapserver-users] differing image size with different mapserver versions

[Lars Schylberg]

Hi,

When I look at the images it seems like the 7.6 have anti-aliasing but 
the 6.4 does not have it.  The 7.6 is more fuzzy and the 6.4 image You 
could that the river is not as smooth.

/Lars S.

Den 2021-05-15 kl. 17:43, skrTo ev Richard Greenwood:
> I get significantly different image sizes between MapServer 6.4 and 
> 7.6 with the same output format definition. I've tried many variations 
> of the following.
>
> OUTPUTFORMAT
>   NAME "png-test"
>   DRIVER "AGG/PNG"  # GD driver is same (6.4 only)
>   MIMETYPE "image/png; mode=8bit"
>   IMAGEMODE PC256
>   FORMATOPTION "QUANTIZE_FORCE=on"
>   FORMATOPTION "QUANTIZE_COLORS=256"
>   EXTENSION "png"
>   # TRANSPARENT on or off makes little difference
> END
>
> MapServer 6.4 <https://greenwoodmap.com/mapserv64.png> is 90kB, 
> MapServer 7.6 <https://greenwoodmap.com/mapserv76.png> is 320kB. Any 
> suggestions as to how I can get my MapServer 7.6 image sizes down 
> closer to what I'm getting in MapServer 6.4?
>
> Thanks,
> Rich
>
> -- 
> Richard W. Greenwood, PLS
> www.greenwoodmap.com <http://www.greenwoodmap.com>
>
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> mapserver-users at lists.osgeo.org
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