how to specify vertical coordinate systems

[Hermann Lupfert]

Hello Martin,

 

How would I specify vertical coordinate systems i en las-file-header. Is las2las.exe capable to do this?

 

Thanks

 

Hermann Lüpfert

[Martin Isenburg]

hello,

if you run LAStools in GUI mode (either without arguments or with '-
gui') you will see that once you select a projection under
"projections" you can choose between three datums: wgs84, navd88, and
navd29. is there another vertical datum one you need? in the command-
line you can add a vertical datum with the projection as follows

las2las -i test.las -o test.laz -utm 32N -vertical wgs84

it is currently not possible to *only* add a vertical datum (without a
projection). also ... there is no vertical re-projecting (aka change
of ellipsoids) happening. this is only meant to add the missing
information about the current ellipsoid / vertical datum.

cheers,

martin