"Automatic" Zoom

[Don Catanzaro]

Hi Davide,

	You can use g.region zoom=filename, where the filename is the name
of a binary raster map ( you r.reclass to create this binary map where the ONES
are the data with the information you wish to use.  This is essentially like
using a mask.  What g.region zoom= does is set your region to be the smallest
possible area that will encompass all the data (the non zero data).  If you
need to make the region a little bit bigger use g.region n=n+xxx s=s-xxx etc..
basically check out the g.region command in the manual...

Don Catanzaro