<html><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:10pt"><div><span>Hello Adrian,</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>You might want to pop over to here for a swift introduction to lidar visualisation for detecting archaeological features:</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; background-color: transparent; font-style: normal; font-family: verdana,helvetica,sans-serif;"><a
href="http:///"><span>http://www.rspsoc.org.uk/SIG/ARCHSIG/NEWSLETTER/ArchSIG%20Newsletter%20Spring%202013.pdf</span></a></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>and here to read about the technical aspects of some of the visualisations that you might want to do when you've rasterised the data... </span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; background-color: transparent; font-style: normal; font-family: verdana,helvetica,sans-serif;"><a href="http:///"><span><br></span></a></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; background-color: transparent; font-style: normal; font-family: verdana,helvetica,sans-serif;"><a
href="http:///"><span>http://www.pushingthesensors.com/wp-content/uploads/2012/06/RBennett_AP1414.pdf</span></a></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>all of which can be done in GRASS as per stuff I documented here:</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>http://www.pushingthesensors.com/thesis/</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px;
font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>For point clouds there is a linux viewer from Oliver Kreylos http://idav.ucdavis.edu/~okreylos/ResDev/LiDAR/index.html</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>and a free viewer from Fugro http://www.fugroviewer.com/ that works on Windows and linux (via WINE).<br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>You may want to give some careful thought as to how you'd like to map / record the features you identify. Please feel free to contact
me off list if you have any questions.<br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>Best wishes,</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>Rebecca Bennett</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: verdana,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><font face="Tahoma" size="2">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><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 10pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Hamish <hamish_b@yahoo.com><br> <b><span style="font-weight: bold;">To:</span></b> GRASS user list <grass-user@lists.osgeo.org>; Adrian Kirilov <kirilov.adrian@gmail.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, 13 April 2013, 8:45<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [GRASS-user] 3D Point Cloud Visualization<br> </font> </div> <div class="y_msg_container"><br>Adrian wrote:<br>> My work with GRASS GIS is
related to Airborne Laser Scanning<br>> (ALS) data. I have to discover archaeological structures. For<br>> the purpose I need to visualize the data as a 3d point cloud.<br>> How can I do that in GRASS?<br><br>start here:<br> <a href="http://grasswiki.osgeo.org/wiki/LIDAR" target="_blank">http://grasswiki.osgeo.org/wiki/LIDAR</a><br><br><br>(ground based laser scanning is more difficult as nviz doesn't<br>like more than a few million vector points, but actual 3D point<br>cloud viz is possible [see the "Help with 3D" wiki page])<br><br>if you really want point cloud viz, see the PCL library:<br> <a href="http://pointclouds.org/" target="_blank">http://pointclouds.org</a><br><br>GRASS focuses more on the analysis of LiDAR data (which is what<br>will give you answers instead of just the pretty pictures :)<br><br>see also www.liblas.org<br><br><br>Hamish<br>_______________________________________________<br>grass-user mailing list<br><a
ymailto="mailto:grass-user@lists.osgeo.org" href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><br><a href="http://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/grass-user</a><br><br><br></div> </div> </div> </blockquote></div> </div></body></html>