<div dir="auto">Mr. Even, thanks You very much.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El vie, 15 de mar de 2024, 1:42 a. m., Even Rouault <<a href="mailto:even.rouault@spatialys.com">even.rouault@spatialys.com</a>> escribió:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
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<div>Le 15/03/2024 à 06:27, Ulises Ibarra
via PROJ a écrit :<br>
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<div dir="ltr">Hello:<br>
I am trying to change the vertical datum of a LIDAR LAS file.
But first I must understand the syntax of proj, but I can't
understand it.<br>
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If I use the following expression:<br>
echo 747194.732 2307402.892 2037.133 | proj +proj=vgridshift
+grids=C:/clouds/geoids/GGM10_GEO.gtx<br>
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<p>"proj" is a legacy tool only for 2D cartographic projections. You
want to use cct instead: <a href="https://proj.org/en/9.4/apps/cct.html" target="_blank" rel="noreferrer">https://proj.org/en/9.4/apps/cct.html</a></p>
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<pre cols="72">--
<a href="http://www.spatialys.com" target="_blank" rel="noreferrer">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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