<div dir="ltr"><div class="gmail_default" style="font-family:monospace,monospace">Hey,<br></div><div class="gmail_default" style="font-family:monospace,monospace">I do something similar with pgpointcloud.<br></div><div class="gmail_default" style="font-family:monospace,monospace">I grou points by patch that are cells in a grid,<br></div><div class="gmail_default" style="font-family:monospace,monospace">then I compute statistics about each patch.<br></div><div class="gmail_default" style="font-family:monospace,monospace">Cheers,<br></div><div class="gmail_default" style="font-family:monospace,monospace">Rémi-C<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-09-01 15:22 GMT+02:00 Aaron Poznanovic <span dir="ltr"><<a href="mailto:aaron@redfoxgis.com" target="_blank">aaron@redfoxgis.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Greetings,</div><div><br></div><div>This is a follow-up to a question posted over at GIS Stack Exchange (<a href="http://gis.stackexchange.com/questions/175454/are-pdal-or-pcl-capable-of-producing-lidar-grid-metrics" target="_blank">http://gis.stackexchange.com/<wbr>questions/175454/are-pdal-or-<wbr>pcl-capable-of-producing-<wbr>lidar-grid-metrics</a>). I'm curious what functionality or approach one would take with PDAL to calculate Lidar grid metrics? </div><div><br></div><div>FUSION is currently the best available set of tools that I know of for calculating Lidar grid metrics, which are useful for describing forest structure (<a href="http://forsys.cfr.washington.edu/fusion/fusionlatest.html" target="_blank">http://forsys.cfr.washington.<wbr>edu/fusion/fusionlatest.html</a>). From the FUSION documentation (page 70 from the documentation <a href="http://forsys.cfr.washington.edu/fusion/FUSION_manual.pdf" target="_blank">http://forsys.<wbr>cfr.washington.edu/fusion/<wbr>FUSION_manual.pdf</a>):</div><div><br></div><div>GridMetrics computes a series of descriptive statistics for a LIDAR data set. Output is a raster (grid) represented in database form with each record corresponding to a single grid cell.<br></div><div><br></div><div>Essentially, I'm interested in producing a raster dataset where each cell represents summarized descriptive statistics for the Lidar point cloud such as cover, skewness, 75th percentile, etc (all of the grid metrics I'm after are available on the FUSION documentation. Is this currently possible, or recommended, with PDAL, or would this require other libraries? Many thanks in advance.</div><div><br></div><div>Best Regards,</div><div><br></div><div>-Aaron</div><div><br></div><div>Currently</div><div><br></div><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><font color="#999999" face="verdana, sans-serif">Aaron J. Poznanovic</font><span style="color:rgb(153,153,153);font-family:verdana,sans-serif;font-size:12.8px">, GISP</span></div><div><font color="#999999" face="verdana, sans-serif">Principal Consultant</font></div><div><font color="#999999" face="verdana, sans-serif">Red Fox GIS & Remote Sensing</font></div><div><font color="#999999" face="verdana, sans-serif">(218) 387-4050</font></div><div><font color="#999999" face="verdana, sans-serif"><a href="http://www.redfoxgis.com" target="_blank">www.redfoxgis.com</a></font></div><div><br></div><div><img src="http://static.wixstatic.com/media/17faa0_f0e382d3822d43bd8591547e34d911b9.png_srz_p_351_279_75_22_0.50_1.20_0.00_png_srz" width="96" height="74"><br></div></div></div></div></div></div></div></div>
</div>
<br>______________________________<wbr>_________________<br>
pdal mailing list<br>
<a href="mailto:pdal@lists.osgeo.org">pdal@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/pdal" rel="noreferrer" target="_blank">http://lists.osgeo.org/<wbr>mailman/listinfo/pdal</a><br></blockquote></div><br></div>