[UW-GIS-L] terrestrial lidar: surfaces or solids

[Michael August]

3D Analyst extension?  Do terrains do true 3D or no (2.5D)?

Michael S. August, L.G.
Associated Earth Sciences, Inc.

-----Original Message-----
From: uw-gis-l-bounces at mailman2.u.washington.edu
[mailto:uw-gis-l-bounces at mailman2.u.washington.edu] On Behalf Of Harvey
Greenberg
Sent: Tuesday, September 20, 2011 5:51 PM
To: UW - GIS Discussion & Support; pslc_maillist at u.washington.edu
Subject: [UW-GIS-L] terrestrial lidar: surfaces or solids

I have terrestrial lidar data for a bunch of rocks in Beacon 
Valley.  Some of the data represent the undersides of rocks.  How 
can I build an accurate model?  As some XY positions will have 3 
or more Z values, a fully three-dimensional solid volume would be 
ideal.  An alternative would be to filter out underside points.  I 
can imagine filtering outlier points, but it seems hard to do 
accurately.

First choice: ESRI software
Second choice: something for my python toolkit
Third choice: other freeware.
Last choice: Buying something


-- 
http://gis.ess.washington.edu/
hgreen at u.washington.edu  374 Johnson Hall 206-685-7981	

	Harvey Greenberg
	University of Washington
	Department of Earth and Space Sciences
         College of the Environment
	Box 351310
	Seattle WA 98195-1310

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