[GRASS-user] Mask creation from sporadic data v.hull

[Jed]

JT-2 wrote:
> 
> For a while now I have been trying to make an accurate mask for LiDAR
> points. 
> As I am working with 1m resolution data I want the mask to be accurate (no 
> more than 1m around the edge of the points/flight area).
> 

Awhile ago, inorder to solve this same problem, I hacked together a little
script [1] that basically does a morphological closing on a raster map, e.g.
the output of r.in.xyz. My shell scripting is pretty weak and I keep meaning
to clean up the script and convert it to Python but it meets my needs for
the moment so I keep finding better ways to spend my time. Maybe it will be
of some help.

Best,

[1] http://bitbucket.org/jedfrechette/jdflib/src/tip/grass/r.closing

-- 
Jed Frechette

University of New Mexico Lidar Lab
www.unm.edu/~lidar
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