<div dir="ltr">Hi Ken,<div><br></div><div>See filters.hag_dem, filters.hag_delaunay and filters.hag_nn. I don't know how close they are to the tools you mention. You can use writers.gdal or filters.faceraster with writers.gdal to create a raster.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, May 8, 2025 at 11:46 AM Kenneth Jacob via pdal <<a href="mailto:pdal@lists.osgeo.org">pdal@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px"><div dir="ltr"><blockquote type="cite"><div style="line-height:1.5"><div style="line-height:1.5"><div style="line-height:1.5"><div dir="ltr" style="line-height:1.5">Dear PDAL Community:</div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">(first time post)</div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5"><b>Success Story</b> </div><div dir="ltr" style="line-height:1.5">Here's the problem I was working on: <br></div></div></div></div></blockquote></div><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"><div dir="ltr"><div><blockquote type="cite"><div style="line-height:1.5"><div style="line-height:1.5"><div style="line-height:1.5"><div dir="ltr" style="line-height:1.5">.laz files downloaded directly from the <a href="https://coast.noaa.gov/dataviewer/#/lidar/search/" target="_blank">NOAA site</a> were opening as thin lines instead of the expected 3D point cloud in CloudCompare. With the help of another forum, I figured out it was because the coordinate system in the NOAA files is spherical and CC is looking for cartesian coordinates. PDAL in a single command line helped me convert to an appropriate cartesian CRS, and this solved the problem. Details of the exchange in the CC forum <a href="https://github.com/CloudCompare/CloudCompare/issues/2135#issuecomment-2776011743" rel="nofollow" target="_blank">HERE</a>.</div></div></div></div></blockquote></div></div></blockquote><div dir="ltr"><blockquote type="cite"><div style="line-height:1.5"><div style="line-height:1.5"><div style="line-height:1.5"><div dir="ltr" style="line-height:1.5">Very exciting.<br></div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5"><b>New Problem and Questions for the PDAL Community</b></div><div dir="ltr" style="line-height:1.5">Inspired to do more with PDAL, my question to this community is whether PDAL can be used to perform point-cloud processing functions from LasTools and WhiteBoxTools that have frustrating inconsistencies when used from QGIS, at least on my computing platform (Mac OS). Inconsistencies are multiplied for me because I use LiDAR files (.laz and .las) from multiple sources. </div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">The functions I'm using in my forest carbon research are:</div><div dir="ltr" style="line-height:1.5"><br></div><blockquote style="margin-left:40px;border-width:medium;border-style:none;border-color:currentcolor;padding:0px"><div dir="ltr" style="line-height:1.5">lasheight (from Lastools)</div><div dir="ltr" style="line-height:1.5">HeightAboveGround (from WhiteBox)</div><div dir="ltr" style="line-height:1.5">LidarDigitalSurfaceModel (from WhiteBox)</div></blockquote><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">Are these functions already duplicated in PDAL? Or is there command lines that effectively do the same thing?<br></div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">Any experience and advice on this subject will be greatly appreciated.</div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">Sincerely,</div><div dir="ltr" style="line-height:1.5"><br></div><div dir="ltr" style="line-height:1.5">Ken</div></div></div></div></blockquote></div></div></div>_______________________________________________<br>
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</blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Andrew Bell<br><a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a></div>