[mapserver-users] Black background with palette

[Stephen Woodbridge]

Alexandre,

Do you have IMAGECOLOR "#000000" set at the MAP level? Also I would put 
the background color as the first color in the mypalette.txt file and 
see if that helps.

-Steve W

Alexandre Dube wrote:
> Hi,
> 
> == problem ==
> 
>  I'm pretty sure I saw this problem on the list somewhere, but I 
> couldn't find the actual thread so here it is : while using
> agg & palette option, when there's no data to draw, instead of having 
> the backgroundcolor drawn it's all black instead.
>  How can I go around this problem ?
> 
> 
> == my actual need ==
> 
>  I want to produce smaller images.  Currently, my getMap renders a 66K 
> png image.  With the palette, it's down to 17K but with a black background.
> 
> 
> == ouputformat definition ==
> 
>    OUTPUTFORMAT
>                NAME aggpng24
>                DRIVER AGG/PNG
>                MIMETYPE "image/png"
>                IMAGEMODE RGB
>                EXTENSION "png"
>                FORMATOPTION "INTERLACE=OFF"
>                FORMATOPTION "PALETTE_FORCE=ON"
>                FORMATOPTION "PALETTE=/my/path/mypalette.txt"
>                TRANSPARENT ON
>                FORMATOPTION "TRANSPARENT=ON"
>    END
> 
>