<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Nothing wrong with either. You just need to use dimension appropriate units. Since WGS84 is in degrees you need to set the raster cell size in degrees. One can calculate the value. But often it’s just simpler to use a meter ( or shudder) a foot based projection. <div><br id="lineBreakAtBeginningOfSignature"><div dir="ltr">Michael Smith</div><div dir="ltr">US Army Corps</div><div dir="ltr"><br><blockquote type="cite">On Jun 8, 2024, at 2:48 PM, Javier Jimenez Shaw via pdal <pdal@lists.osgeo.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">I have seen point clouds in WGS84, and GeoTIFFs also in WGS84. Does it mean that a point cloud in geographic coordinates is conceptually wrong? I find it strange, but is it wrong? Why does PDAL care?<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 8 Jun 2024 at 03:17, Sergey Yefimov 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 class="msg4846145871004320123">
<div dir="ltr">
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
It helps. Thank you very much.</div>
<div id="m_4846145871004320123appendonsend"></div>
<hr style="display:inline-block;width:98%">
<div id="m_4846145871004320123divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Adam Steer <<a href="mailto:adam.d.steer@gmail.com" target="_blank">adam.d.steer@gmail.com</a>><br>
<b>Sent:</b> Friday, June 7, 2024 7:22 PM<br>
<b>To:</b> Sergey Yefimov <<a href="mailto:syefimov@ptfs.com" target="_blank">syefimov@ptfs.com</a>><br>
<b>Cc:</b> <a href="mailto:pdal@lists.osgeo.org" target="_blank">pdal@lists.osgeo.org</a> <<a href="mailto:pdal@lists.osgeo.org" target="_blank">pdal@lists.osgeo.org</a>><br>
<b>Subject:</b> Re: [pdal] las to geotif</font>
<div> </div>
</div>
<div>
<div style="background-color:red;color:white;padding:2%">THIS EMAIL IS FROM AN <strong>
UNTRUSTED</strong> EMAIL PROVIDER.</div>
<br>
<div>
<p dir="ltr">Hi Sergey - try reprojecting your source las file into a projected (in metres) system and running again.</p>
<p dir="ltr">PDAL/GDAL pass projections through. Your input data are in degrees, your output resolution is interpreted as the same unit, so resolution 1.0 is interpreted as '1 degree'.</p>
<p dir="ltr">Hope that helps,</p>
<p dir="ltr">Adam</p>
<p dir="ltr">--<br>
Dr Adam Steer<br>
<a href="https://spatialised.net/" target="_blank">https://spatialised.net</a><br>
Available for consulting/open for headhunting<br>
</p>
<br>
<div>
<div dir="ltr">On Sat, Jun 8, 2024, 07:33 Sergey Yefimov via pdal <<a href="mailto:pdal@lists.osgeo.org" target="_blank">pdal@lists.osgeo.org</a>> wrote:<br>
</div>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Hi,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
I try to convert las to geotiff using this pipeline</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"pipeline":[</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{"type" : "readers.las",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"filename":"C:\\KVData\\source\\las\\test.las"</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
},</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"type":"writers.gdal",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"filename":"C:/KVData/source/tiff/ttest.tif",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"resolution":1.0,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"output_type":"all",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"gdaldriver":"GTiff"</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
}</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
]</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
After conversion invalid 2 KB tiff file created. las info:</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"file_size": 137422487,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"filename": "C:\\KVData\\source\\las\\test.las",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"now": "2024-06-07T17:09:19-0400",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"pdal_version": "2.7.1 (git-version: Release)",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"reader": "readers.las",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"stats":</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"bbox":</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"EPSG:4326":</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"bbox":</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"maxx": -75.606374,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"maxy": 35.9592838,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"maxz": 29.71,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"minx": -75.6350255,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"miny": 35.942234,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"minz": -11.88</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
},</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"boundary": { "type": "Polygon", "coordinates": [ [ [ -75.6350255, 35.942234, -11.88 ], [ -75.6350255, 35.9592838, -11.88 ], [ -75.606374, 35.9592838, 29.71 ], [ -75.606374, 35.942234, 29.71 ], [ -75.6350255, 35.942234, -11.88 ] ] ] }</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
}, ..</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"statistic":</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
[</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"average": -75.62226764,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"count": 4907929,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"maximum": -75.606374,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"minimum": -75.6350255,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"name": "X",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"position": 0,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"stddev": 0.005315505055,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"variance": 2.825459399e-05</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
},</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
{</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"average": 35.95136764,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"count": 4907929,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"maximum": 35.9592838,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"minimum": 35.942234,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"name": "Y",</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"position": 1,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"stddev": 0.002706953159,</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"variance": 7.327595404e-06</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
},..</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
}</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div id="m_4846145871004320123x_m_1747933681256000192Signature">
<p style="text-align:left;background-color:rgb(255,255,255);margin-top:0px;margin-bottom:0px;font-family:Arial,Helvetica,sans-serif;font-size:12.8px;color:rgb(32,33,36)">
<span style="font-family:"Times New Roman",serif;font-size:7.5pt;color:rgb(11,83,148)"><b>|</b></span><span style="font-family:"Times New Roman",serif;font-size:18pt;color:rgb(11,83,148)"><b> P
</b></span><span style="font-family:"Times New Roman",serif;font-size:7.5pt;color:rgb(11,83,148)"><b>|</b></span><span style="font-family:"Times New Roman",serif;font-size:18pt;color:rgb(11,83,148)"><b> T
</b></span><span style="font-family:"Times New Roman",serif;font-size:7.5pt;color:rgb(11,83,148)"><b>|</b></span><span style="font-family:"Times New Roman",serif;font-size:18pt;color:rgb(11,83,148)"><b> F
</b></span><span style="font-family:"Times New Roman",serif;font-size:7.5pt;color:rgb(11,83,148)"><b>|</b></span><span style="font-family:"Times New Roman",serif;font-size:18pt;color:rgb(11,83,148)"><b> S
</b></span><span style="font-family:"Times New Roman",serif;font-size:7.5pt;color:rgb(11,83,148)"><b>|</b></span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin-top:0px;margin-bottom:0px;font-family:Arial,Helvetica,sans-serif;font-size:12.8px;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;color:rgb(204,0,0)">Empowering Content</span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin:0px 0in;font-family:"Times New Roman",serif;font-size:12pt;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;font-size:11pt;color:rgb(0,36,81)">1801 Research Blvd</span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin:0px 0in;font-family:"Times New Roman",serif;font-size:12pt;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;font-size:11pt;color:rgb(0,36,81)">Suite 310</span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin:0px 0in;font-family:"Times New Roman",serif;font-size:12pt;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;font-size:11pt;color:rgb(0,36,81)">Rockville, MD 20850</span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin-top:0px;margin-bottom:0px;font-size:12.8px;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;color:rgb(0,36,81)">301 654 8088 Ext 131</span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin-top:0px;margin-bottom:0px;font-family:Arial,Helvetica,sans-serif;font-size:12.8px;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;color:blue"><a href="http://www.ptfs.com/" rel="noopener noreferrer noreferrer" style="color:blue;margin:0px" target="_blank">www.ptfs.com</a></span></p>
<p style="text-align:left;background-color:rgb(255,255,255);margin-top:0px;margin-bottom:0px;font-family:Arial,Helvetica,sans-serif;font-size:12.8px;color:rgb(32,33,36)">
<span style="font-family:Arial,sans-serif;color:blue">syefimov<a href="mailto:udoh@ptfs.com" rel="noopener noreferrer noreferrer" style="margin:0px" target="_blank">@ptfs.com</a></span></p>
</div>
</div>
_______________________________________________<br>
pdal mailing list<br>
<a href="mailto:pdal@lists.osgeo.org" rel="noreferrer" target="_blank">pdal@lists.osgeo.org</a><br>
<a href="https://lists.osgeo.org/mailman/listinfo/pdal" rel="noreferrer noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/pdal</a><br>
</blockquote>
</div>
</div>
</div>
</div>
_______________________________________________<br>
pdal mailing list<br>
<a href="mailto:pdal@lists.osgeo.org" target="_blank">pdal@lists.osgeo.org</a><br>
<a href="https://lists.osgeo.org/mailman/listinfo/pdal" rel="noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/pdal</a><br>
</div></blockquote></div>
<span>_______________________________________________</span><br><span>pdal mailing list</span><br><span>pdal@lists.osgeo.org</span><br><span>https://lists.osgeo.org/mailman/listinfo/pdal</span><br></div></blockquote></div></body></html>