[GRASS-user] R.composite equivalent

[Markus Neteler]

On Fri, Aug 04, 2006 at 03:56:10AM +0100, Glynn Clements wrote:
> 
> Markus Neteler wrote:
> 
> > > > Playing around with grass61 I notice there is no r.composite (as per the
> > > > GRASS book)....
> > > 
> > > r.composite is present in all 6.x versions, and all of the later 5.x
> > > versions. If it isn't present on your system, that suggests an error
> > > in building GRASS.
> > > 
> > > There used to be a d.composite in the old 5.x versions; that has been
> > > made obsolete by r.composite and d.rgb.
> > 
> > Apropos - for GRASS 7, I suggest to rename it to r.rgb (or we are
> > happy to drop the d.* family for something else).
> 
> Rename what to r.rgb? r.composite? I think that the current name is
> more accurate.
> 
> BTW, regarding d.composite vs d.rgb: the former merged separate R/G/B
> maps into a composite image then displayed the result, while d.rgb
> uses the RGB raster interface (which was created specifically for that
> purpose) without generating an intermediate composite image.

OK - but from a user's perspective:
"I see this nice RGB landsat composite (d.rgb) and want to save it
 as map - why isn't there r.rgb)"? - or vice verse.

Many don't really care for small differences in the algorithm (even
if they should).

Markus

PS: d.composite I don't have, did it ever exist?