[GRASSLIST:4585] Re: Transparent null values in output images.

[Markus Neteler]

On Wed, Oct 20, 2004 at 12:10:30PM +1100, Gordon Keith wrote:
> I have some rasters with large null areas.
> 
> I would like to output these as images (r.out.png or r.out.tiff) with the null 
> values represented by transparent pixels.
> 
> I can't see any flags on these commands to enable this.
> 
> Is this possible?

Not sure but maybe 'r.out.gdal' does that (GRASS 5.7) already?

Markus