UTM32 coordinates

[Tobias Leppla]

287

I have a simple LAZ file (DTM) with UTM32 coordinates (308939.410 5482972.060 181.700). Now I want to create an XYZ file (ASCII) from it, but one that includes the zone number of the meridian strip in the easting value. So the result should look like this: 32308939.410 5482972.060 181.700

[Jochen Rapidlasso]

Hi Tobias,
las2las64 or las2txt64 is build to convert LIDAR data into a text format. To export xyz coordinates you can use -parse xyz or -parse XYZ to export either the final coordinates or the raw values.
You can do all transformations during processing LAStools presents you. In your case you just want to add a constant to x, so the transformation would be
    -translate_x 32000000
This probably leads into a lot of range validations, because the offset in the LAS/LAZ file header maybe does not cover this large constant value, so you probably get warnings/errors like this:

WARNING: total of  102622 overflows caused by '-translate_x 32000000

LAStools transformation module can handle this situation for a while, the magic argument is
    -offset_adjust
This argument was introduced in December 2024 to handle exactly this situations.
So
    las2las64 -i in.laz -o tmp.txt -oparse xyz -offset_adjust -translate_x 32000000
should do the required transformation and write the text output as expected.

Cheers,

Jochen @rapidlasso