[Mapserver-users] HOWTO: 24 bit png on WMS interface

[Bart van den Eijnden]

Hi list,

thanks to Frank Warmerdam I have solved my problem with not getting 24 bit 
PNG output in Mapserver.

In my MAP file I used the following:

IMAGETYPE PNG24

and then in my WMS request I used format=image/png

This caused 8-bit PNG to be generated instead of 24-bit PNG.

The solution Frank suggested is using the following OUTPUTFORMAT in my MAP 
file and this works:

OUTPUTFORMAT
   NAME PNG24
   DRIVER "GD/PNG"
   MIMETYPE "image/png"
   EXTENSION PNG
   IMAGEMODE RGBA
   TRANSPARENT ON
END

Maybe something for the Mapserver WMS HOWTO?

Best regards,
Bart