[GRASS-user] help to use r.mapcalc with decimal/binary (modis data)

[Markus Neteler]

On Mon, May 28, 2007 at 12:14:05AM +0100, Glynn Clements wrote:
> 
> Hamish wrote:
> 
> > > Oops; I could have sworn that r.mapcalc understood hex. Sorry; you'll
> > > need to use decimal values, e.g.
> > > 
> > > r.mapcalc MASK="if(sur_refl_qc_250 & 240 == 176 , 1, null())"
> > 
> > so r.mapcalc can do bitwise & |? (nothing about that in the help pages)
> 
> Damn, no, that neither.

So far I used r.bitpattern to do this job. Given the new functionality
in r.mapcalc, we can retire r.bitpattern for GRASS 7 - great.

Thanks for the bit pattern extensions in r.mapcalc!

Markus