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Vaclav,
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<div class="">I agree with all of your points. There was a little discussion about recoding GRASS LiDAR tools to use PDAL instead of libLAS. I am just wondering if that has gone anywhere or not. </div>
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<div class="">libLAS is missing some of the most sophisticated filtering routines found in the non-open-source LAStools. PDAL seems to have them according to the web site but I admit that I have not yet tried them. I might have time to do so in the coming weeks. </div>
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<div class="">Michael<br class="">
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____________________</div>
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<font face="Helvetica" size="3" class="">C. Michael Barton</font></div>
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<font face="Helvetica" size="3" class="">Director, Center for Social Dynamics & Complexity </font></div>
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<font face="Helvetica" size="3" class="">Arizona State University</font></div>
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<font face="Helvetica" size="3" class=""><font class="">voice: </font><font class="">480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)</font><br class="">
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<font face="Helvetica" size="3" class="">www: <a href="http://www.public.asu.edu/~cmbarton" class="">
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<div class="">On Apr 30, 2016, at 10:26 AM, Vaclav Petras <<a href="mailto:wenzeslaus@gmail.com" class="">wenzeslaus@gmail.com</a>> wrote:</div>
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<div class="gmail_extra">Hi Michael,<br class="">
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<div class="gmail_extra">I'm currently looking at the lidar-related functionality, so here is some info.<br class="">
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<div class="gmail_quote">On Sat, Apr 30, 2016 at 12:28 PM, Michael Barton <span dir="ltr" class="">
<<a href="mailto:Michael.Barton@asu.edu" target="_blank" class="">Michael.Barton@asu.edu</a>></span> wrote:<br class="">
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Related to this, is there a plan to replace liblas with the new Python alternative (the name escapes me at the moment)? This would further simplify making robust LiDAR tools available in GRASS</blockquote>
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<div class="gmail_quote">On Sat, Apr 30, 2016 at 12:36 PM, Michael Barton <span dir="ltr" class="">
<<a href="mailto:Michael.Barton@asu.edu" target="_blank" class="">Michael.Barton@asu.edu</a>></span> wrote:<br class="">
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<div style="word-wrap:break-word" class="">The LiDAR tools I was thinking of is PDAL.
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<div class=""><a href="http://www.pdal.io/" target="_blank" class="">http://www.pdal.io</a> </div>
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<div class="">You can try compile GRASS with PDAL right now. Just note that PDAL is not a drop-in replacement for libLAS and so far the PDAL functionality is available only through special module v.in.pdal. See #2732 [1] for details.<br class="">
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<div class="">I guess it's C++. </div>
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<div class="">Yes, it's C++ not C or Python and it currently does not have C API, so it might be even harder to connect in general. The basic functionality newly (since release 1.2) does not depend on Boost but the new C++ (I think C++11) is needed. It is important
to note that most of the fancy functionality (like ground detection) is provided through another dependency, PCL (<a href="http://pointclouds.org/" class="">http://pointclouds.org/</a>), which is a large point cloud processing library which depends on Boost
(if I recall correctly).<br class="">
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<div class="">But it's open source without some of the legal and compiling issues of LAStools.
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<div class="gmail_extra">With the current GRASS source code we are able to use only libLAS (<a href="http://www.liblas.org/" target="_blank" class="">http://www.liblas.org/</a>), not LAStools (<a href="https://rapidlasso.com/lastools/" target="_blank" class="">https://rapidlasso.com/lastools/</a>)
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<div class="gmail_extra">Best,<br class="">
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<div class="gmail_extra">Vaclav<br class="">
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[1] <a href="https://trac.osgeo.org/grass/ticket/2732" target="_blank" class="">https://trac.osgeo.org/grass/ticket/2732</a><br class="">
[2] <a href="https://lists.osgeo.org/pipermail/grass-dev/2015-September/076318.html" class="">
https://lists.osgeo.org/pipermail/grass-dev/2015-September/076318.html</a><br class="">
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