I use GRASS quite a lot, but always thought that it would be slow on
vector points. I know Brovelli and her team developed some modules, I'll
check on that. Good idea to use LibLAS as "driver" to turn LAS to xyz.
Francesco
Il 04/03/2011 15:05, Stuart Edwards ha scritto:
GRASS GIS (open source) has several modules for processing raw LiDAR
data and the ability to script your own classification routines.
LibLAS does a nice job of preprocessing (decoding) the LAS files so
they can be input to GRASS as x,y,z or general ASCII format .......see:
http://grass.osgeo.org/wiki/LIDAR#Micro-tutorial
Stu
On Mar 4, 2011, at 1:31 AM, francesco wrote:
Hello List,
I just registered, hello to everyone.
Regarding Aaron's question, I am playing around with LibLAS to
develop a ground classification procedure. It uses Axellson's
progressive triangulation of local minimum points - but I am also
looking at other solutions. Does anyone have other interesting
approaches in mind?
Cheers,
Francesco
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**************************************************
*Francesco Pirotti*
Dep. TESAF
CIRGEO – Interdepartmental Research Center on Cartography Photogrammetry
Remote Sensing and G.I.S.
University of Padova
Web: http://www.cirgeo.unipd.it/cirgeo/francescopirotti.htm
Email: [email protected] <mailto:[email protected]>
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Phone: +39 349 55 39 261
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Il 04/03/2011 00:49, Aaron Reyna ha scritto:
Ah yes,
I'll try the MCC-LiDAR. Great, thanks for the suggestion!
Aaron
On Thu, Mar 3, 2011 at 3:09 PM, Peter Tittmann
<[email protected] <mailto:[email protected]>> wrote:
I've used MCC-Lidar http://sourceforge.net/apps/trac/mcclidar/ a
little with marginal results. Not a great answer but something.
TeraScan http://www.terrasolid.fi/en/products/terrascan is the
elephant in that room.
Peter
On 03/03/2011 02:43 PM, Aaron Reyna wrote:
This may be too broad of a question, but has anyone seen or
heard of a way to do efficient ground modeling with libLAS?
That is, take raw LiDAR files (all default points) and model
out the ground class? I do have raw LiDAR files if it helps.
Just throwing it out there.
Best,
Aaron
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Geography Graduate Group
UC Davis
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**************************************************
*Francesco Pirotti*
Dep. TESAF
CIRGEO – Interdepartmental Research Center on Cartography Photogrammetry
Remote Sensing and G.I.S.
University of Padova
Web: http://www.cirgeo.unipd.it/cirgeo/francescopirotti.htm
Email: [email protected] <mailto:[email protected]>
Phone: +39 049 827 2710
Phone: +39 349 55 39 261
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