[GRASS-user] Shadow maps...

[Jonathan Greenberg]

Quick question: is there a functional difference between the shadow 
algorithm found in r.sun and r.sunmask?  I'd like to use a ray-trace 
based shadowing algorithm -- if r.sunmask does this (the documentation 
doesn't indicate whether or not it does), it seems that would be a 
faster alternative to running the entire r.sun algorithm.

--j

-- 

Jonathan A. Greenberg, PhD
Postdoctoral Scholar
Center for Spatial Technologies and Remote Sensing (CSTARS)
University of California, Davis
One Shields Avenue
The Barn, Room 250N
Davis, CA 95616
Cell: 415-794-5043
AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307