I’m trying to create a volume using r.to.rast3 and display it in NVIZ. I’ve got 6 versions of a 600x500 map at 90m resolution. The 6 versions are from 9000, 9200, 9400, 9600, 9800, and 10000 years ago. So I’ve tried the following settings using g.region.
bottom=0
top=6
resolution=1
bottom=0
top=600
resolution=100
bottom=9000
top=10200
resolution=200
All of these give me 6 depths that make sense, given the resolution settings, in r3.info after running r.to.rast3.
The values range from –2000 to 2000 roughly, but most are in the 0-500 range. So I’ve picked isosurfaces of 10, 50, 100, 400, 1000, and even 9500. None show up. I see the volume “box” as a flat rectangle (i.e., no vertical depth), but nothing in it.
Any suggestions as to what I’m doing wrong here? I’ve done this before and it seemed to work with no problems.
Michael
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton