Hi Steve, I have this in my file:
OUTPUTFORMAT NAME "AGGPNG" DRIVER "AGG/PNG" EXTENSION "png" MIMETYPE "image/png;mode=24bit;" IMAGEMODE RGBA FORMATOPTION "INTERLACE=true" FORMATOPTION "QUANTIZE_NEW=ON" FORMATOPTION "QUANTIZE_FORCE=ON" FORMATOPTION "QUANTIZE_DITHER=ON" FORMATOPTION "QUANTIZE_COLORS=256" END And in my layer, if you want opacity: OPACITY 60 That should render nice lines :). On 24 August 2010 21:16, Stephen Woodbridge <wood...@swoodbridge.com> wrote: > If I want to generate RGBA transparent images using AGG, what should my > OUTPUTFORMAT block look like? > > > I was using this one for 8-bit images, but the anti aliasing was creating > blackish artifacts along the rendered lines. Is there a way to avoid them? > > OUTPUTFORMAT > NAME "agg_qn" > DRIVER "AGG/PNG" > EXTENSION "png" > MIMETYPE "image/png" > IMAGEMODE RGBA > TRANSPARENT ON > FORMATOPTION "INTERLACE=false" > FORMATOPTION "QUANTIZE_NEW=ON" > FORMATOPTION "QUANTIZE_FORCE=ON" > FORMATOPTION "QUANTIZE_DITHER=OFF" > FORMATOPTION "QUANTIZE_COLORS=37" > FORMATOPTION "TRANSPARENT=ON" > END > > Trying 32bit RGBA: > > IMAGECOLOR 0 0 0 > > OUTPUTFORMAT > NAME "agg_qn" > DRIVER "AGG/PNG" > EXTENSION "png" > MIMETYPE "image/png" > IMAGEMODE RGBA > TRANSPARENT ON > FORMATOPTION "TRANSPARENT=ON" > END > > Generated black backgrounds and not transparent. Is it as simple as > removing the IMAGECOLOR? I didn't try that. > > -Steve W > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapserver-users >
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