[Chameleon] Setting quality for JPEG output

[Jason Grimes]

Hi Tyler,

You set this with FORMATOPTION in the OUTPUTFORMAT block of your map
file.  Here is what I have mine set to...

        IMAGETYPE jpeg
        IMAGECOLOR 255 255 255
                                                  
        OUTPUTFORMAT
                NAME jpeg
                DRIVER "GD/JPEG"
                MIMETYPE "image/jpeg"
                IMAGEMODE RGB
                EXTENSION "jpg"
                FORMATOPTION "QUALITY=100"
        END

The IMAGETYPE must match the NAME in OUTPUTFORMAT.

Jason G

On Fri, 2005-07-08 at 11:20, Tyler Mitchell wrote:
> Jacob,
> I just discovered your drawmap mods for setting imagetype based on layer 
> metadata -- very good!
> http://lists.maptools.org/pipermail/chameleon/2004-August/001253.html
> It is just what I have been needing.
> 
> Does anyone know if I can set the compression/quality for JPEG output? 
> I know how I'd do it in a map file, but $szImgType in drawmap.php seems 
> to only refer to image format, not sub-settings for that format.
> 
> Can anyone give me some pointers?
> 
> Tyler
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