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Unfortunately the full set of LAS tools only works in Windows.
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<div>FWIW, I've built them into my Mac GRASS binaries (i.e., the ones that are open source) so that you can use both.</div>
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<div>Michael<br>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">______________________________</span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">C. Michael Barton </span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Director, Center for Social Dynamics & Complexity</span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Professor of Anthropology, School of Human Evolution & Social Change</span></font></div>
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<span class="Apple-style-span" style="font-size: 12px; font-family: Helvetica; ">Arizona State University</span></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Tempe, AZ 85287-2402</span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">USA</span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; "><br>
</span></font></div>
<div><font class="Apple-style-span" face="Helvetica" size="3" style="color: rgb(0, 0, 0); font-family: 'Lucida Grande'; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="font-size: 12px; ">voice:<span class="Apple-converted-space"> </span><span class="Apple-tab-span" style="white-space: pre; ">
</span>480-965-6262 (SHESC), 480-965-8130/</span></font><span style="font-size: 12px; ">727-9746</span><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "> (CSDC)</span></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">fax: 480-965-7671(SHESC), 480-727-0709 (CSDC)</span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; ">www: <span class="Apple-tab-span" style="white-space: pre; ">
</span><a href="http://csdc.asu.edu">http://csdc.asu.edu</a>, <a href="http://shesc.asu.edu">
http://shesc.asu.edu</a></span></font></div>
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<font class="Apple-style-span" face="Helvetica" size="3"><span class="Apple-style-span" style="font-size: 12px; "><span class="Apple-tab-span" style="white-space: pre; "></span><a href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</a></span></font></div>
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<div>On Aug 27, 2013, at 12:00 PM, <<a href="mailto:grass-user-request@lists.osgeo.org">grass-user-request@lists.osgeo.org</a>></div>
<div> wrote:</div>
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<span style="font-family: Helvetica; font-size: medium; color: rgb(127, 127, 127); "><b>From:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica; font-size: medium; ">Rebecca Bennett <<a href="mailto:rabennett@ymail.com">rabennett@ymail.com</a>><br>
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<span style="font-family: Helvetica; font-size: medium; color: rgb(127, 127, 127); "><b>Subject:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica; font-size: medium; "><b>Re: [GRASS-user] v.lidar.edgedetection, v.surf.bspline
and visualization issues</b><br>
</span></div>
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<span style="font-family: Helvetica; font-size: medium; color: rgb(127, 127, 127); "><b>Date:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica; font-size: medium; ">August 27, 2013 6:02:20 AM MST<br>
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<span style="font-family: Helvetica; font-size: medium; color: rgb(127, 127, 127); "><b>To:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica; font-size: medium; ">"<a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a>"
<<a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a>><br>
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<span style="font-family: Helvetica; font-size: medium; color: rgb(127, 127, 127); "><b>Reply-To:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica; font-size: medium; ">Rebecca Bennett <<a href="mailto:rabennett@ymail.com">rabennett@ymail.com</a>><br>
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<div><span>Hello Luis,</span></div>
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<span>I'm about to commit a sacrilegious act on the GRASS-user list but it would seem that Martin Isenburg's LAStools software is more appropriate for this stage of your lidar processing.</span></div>
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<span><a href="http://rapidlasso.com/lastools/">http://rapidlasso.com/lastools/</a></span></div>
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<span>My workflow is to do the tasks you mention below (including the point cloud visualization and DEM generation) in LAStools and then import the DEM / DTM to GRASS for all subsequent processing.<br>
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<span>Best,</span></div>
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<span>Rebecca</span></div>
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<div style="font-family: Tahoma; font-size: 13px; "><font size="2" face="Tahoma">Rebecca Bennett<br>
Postdoctoral Associate, Wired! Group<br>
Department of Art, Art History and Visual Studies<br>
Duke University, Durham, NC<br>
<a href="http://www.pushingthesensors.com/">www.pushingthesensors.com</a></font></div>
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<font size="2" face="Arial"><b><span style="font-weight: bold; ">From:</span></b><span class="Apple-converted-space"> </span>Luis Ramirez <<a href="mailto:lu.ramirez.c@gmail.com">lu.ramirez.c@gmail.com</a>><br>
<b><span style="font-weight: bold; ">To:</span></b><span class="Apple-converted-space"> </span><a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><span class="Apple-converted-space"> </span><br>
<b><span style="font-weight: bold; ">Sent:</span></b><span class="Apple-converted-space"> </span>Monday, 26 August 2013, 9:03<br>
<b><span style="font-weight: bold; ">Subject:</span></b><span class="Apple-converted-space"> </span>[GRASS-user] v.lidar.edgedetection, v.surf.bspline and visualization issues<br>
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Hi there,<br>
<br>
I´m being working with Grass Gis just for few weeks. I´m trying to<span class="Apple-converted-space"> </span><br>
generate a dsm and dtm from LIDAR data. I imported my data as LAS and i<span class="Apple-converted-space"> </span><br>
was following the steps explained in the Grass Gis Book of neteler and<span class="Apple-converted-space"> </span><br>
mitasova. However, I'am having some problems that are transforming an<span class="Apple-converted-space"> </span><br>
easy task into a time-consuming-nightmare. the first thing that I do not<span class="Apple-converted-space"> </span><br>
understand is why v.lidar.edgedetection works under Grass Gis 6.4. and 7<span class="Apple-converted-space"> </span><br>
instaled in a Virtual machine with Ubuntu but not in Grass Gis 6.4. and<span class="Apple-converted-space"> </span><br>
7 in a windows 7 Computer. after calculating the first two regions (from<span class="Apple-converted-space"> </span><br>
9) it crashes. I tried to increment the parameters "see" and "sen" up to<span class="Apple-converted-space"> </span><br>
the value 10. it is able to calculate a bit more but it still craches.<span class="Apple-converted-space"> </span><br>
after googleing it i Just get information about a bug detected in 2006.<span class="Apple-converted-space"> </span><br>
I would really apreciate to be able to run this module in a windows 7<span class="Apple-converted-space"> </span><br>
computer. do you maybe have a clue?<br>
the second issue is related to v.surf.bspline. I am using a very small<span class="Apple-converted-space"> </span><br>
map of 1km2 with 118798 points for testing (the goal is to use the<span class="Apple-converted-space"> </span><br>
procedure for a map at least 20 times larger than this one). However,<span class="Apple-converted-space"> </span><br>
Grass Gis 6.4 and 7 (for Ubuntu and For Windows) show me a warning<span class="Apple-converted-space"> </span><br>
message. it says that it could take too long depending on the amount of<span class="Apple-converted-space"> </span><br>
points. I already tried with different values for the parameters" sie"<span class="Apple-converted-space"> </span><br>
and "sin" but it doesnt get any better. I just left the computer<span class="Apple-converted-space"> </span><br>
calculating for few hours but I´m not really getting any result. do<span class="Apple-converted-space"> </span><br>
anyone have an Idea what I´m doing wrong?<br>
Finally, I´m being trying to get a 3D visualization of the points but<span class="Apple-converted-space"> </span><br>
both the monitors of the GUI and the wxs ended up crashing before I can<span class="Apple-converted-space"> </span><br>
see a thing. is that a known problem? there is any known reason for such<span class="Apple-converted-space"> </span><br>
a problem or even better, a solution or an alternative?<br>
<br>
Thank you in advance!<br>
<br>
Luis<br>
<br>
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