lasmerge64 don't write empty files

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Andreas

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Jan 27, 2026, 5:38:02 AM (4 days ago) Jan 27
to LAStools - efficient tools for LiDAR processing
Hello,

I want to separate las tiles with an edge of 1000 m into tiles with an edge of 100 m using lasmerge64.

This works very well, using the -inside_rectangle option. Unfortunately, lasmerge64 writes empty files, if there is no data within the processed 100 m rectangle.

Is there any option or possibility (I haven't found yet) to supress the outut of empty files?

Thanks a lot!

Jochen Rapidlasso

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Jan 27, 2026, 6:04:12 AM (4 days ago) Jan 27
to LAStools - efficient tools for LiDAR processing
Hi Andreas,
you can't do that with lasmerge64 directly, but you can run
    lasinfo64 -i *.laz -delete_empty
after processing the files.
This command will delete and report all files having 0 points.

Cheers,

Jochen @rapidlasso

Andreas....@heidelberg.de

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Jan 27, 2026, 6:39:53 AM (4 days ago) Jan 27
to last...@googlegroups.com

Hi Jochen,

 

perfectly. Thanks a lot!

 

Best regards,

Andreas

 

Von: last...@googlegroups.com <last...@googlegroups.com> Im Auftrag von Jochen Rapidlasso
Gesendet: Dienstag, 27. Januar 2026 12:04
An: LAStools - efficient tools for LiDAR processing <last...@googlegroups.com>
Betreff: [LAStools] Re: lasmerge64 don't write empty files

 

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