Hello: 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.
If I use the following expression: echo 747194.732 2307402.892 2037.133 | proj +proj=vgridshift +grids=C:/clouds/geoids/GGM10_GEO.gtx I get: Rel. 9.3.1, December 1st, 2023 <proj>: can't initialize operations that produce angular output coordinates program abnormally terminated So I try to try an operation that seems to be simpler: >cs2cs +proj=utm +zone=13 +north +ellps=WGS84 +units=m +no_defs +ellps=wgs84 +to +proj=tmerc +lon_0=-102.624373 +ellps=wgs84 And the result is: cannot instantiate target coordinate system program abnormally terminated I thank you for your kind attention.
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