Issue with las2las64 no longer adjusting scale factor during reprojection

[Casey Johnston]

Hello,

I am encountering a reprojection issue with las2las64 when transforming coordinates from geographic to projected. Specifically, the 64-bit version is no longer rescaling the output data as it has done before, although the 32-bit version still works.

I have not tested each new version to pinpoint when this change was introduced, but it was somewhere between version 241017 and version 241125.

DOES NOT WORK:
C:\LAStools\bin\las2las64.exe -i *.laz -i *.las -olaz -odir output -cores 7 -epsg 4326 -target_epsg 32617

STILL WORKS:
C:\LAStools\bin\las2las.exe -i *.laz -i *.las -olaz -odir output -cores 7 -epsg 4326 -target_epsg 32617

In the attached text file, you will find the lasinfo reports for the input geographic file and the output projected files from both 32/64 bit versions.

I have repeated this test on several files, and receive similar outputs. The 64-bit version does not seem to be adjusting the scale factor. Adding -rescale_xy 0.01 0.01 manually when calling las2las64 appears to generate a correct output.

Please let me know if you need anything else.

Thank you for your assistance,

Casey Johnston, CP, GISP
Senior Systems Specialist | JALBTCX

[Jochen Rapidlasso]

Hi Casey,

thanks for the hint - we will check this.

As a workaround you can try

C:\LAStools\bin\las2las64.exe -i *.laz -i *.las -olaz -odir output -cores 7 -proj_epsg 4326 32617

Best regards,

Jochen @rapidlasso

[Jochen Rapidlasso]

Hi Casey,

this issue should be solved with the latest version.

Best regards,

Jochen @rapidlasso