[GRASS5] TODOs for 5.0.0

Glynn Clements glynn.clements at virgin.net
Sat Aug 18 15:00:25 EDT 2001

Glynn Clements wrote:

> I wouldn't have a clue as to how to implement gauss, so unless someone
> can find an existing GPL-compliant implementation, r.surf.fractal and
> r.surf.gauss aren't going to make it into any 100% GPL distribution.

Everything I've managed to find on the WWW about generating Gaussian
distributed variables uses exactly the same algorithm as gauss() (this
is known as the Box-Muller transform). Furthermore, I notice that
libg++ uses this algorithm for the "Normal" class (which implements a
Gaussian PRNG).

Glynn Clements <glynn.clements at virgin.net>

More information about the grass-dev mailing list