[GRASS-user] Clipping LiDAR data

Jack Lonsdale lonsdale at unbc.ca
Tue Apr 21 20:06:07 EDT 2009


Is there an easy way to clip a LiDAR data file?

I have a 2GB raw dataset which I imported with v.in.ascii without
topology or creating database because that caused memory to get full.

I was going to just run the v.lidar.edgedetection for the whole dataset,
but that seems to take forever..

So I thought I could clip down the vector to a subsample using
v.in.region and then v.overlay, but this produces an error because of no
topology, fair enough! So maybe I can build the topology with
v.build...again memory runs out.

Any ideas? Thanks, Jack



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