*.las *.laz *.txt - batch processing for LAStools

[Martin Isenburg]

hello,

as of today most LAStools are able to batch process multiple LIDAR
files or entire folders worth of LAS, LAZ, or ASCII data. here a few
examples.

want to compress an entire folder of LAS files?
laszip *.las

want to uncompress a lot of LAZ?
laszip swath1*.laz swath2*.laz swath3*.laz

want to compress a national park of ASCII tiles?
laszip yosemite*.txt -iparse xyztirn

want to spatially index your last three LAS projects
lasindex -i project1\*.las project2\*.las project3\*.las

want to tile and compress counties of LIDAR returns
lastile -i alameda*.las -olaz -size 5000

want to grid mountains of LAS with false elevation color and KMLs
lasgrid -i sierra*.las -false -opng -utm 10T -step 10

want to thin sin cities of LAS
lasthin -lof las_vegas_files.txt -lof reno_files.txt -grid_spacing 1

and so on ... all '-help' options and all README files explain the new
functionality.

cheers,

martin

[Alejandro Hinojosa C.]

Hey Martin,

You always making it better for all of us.

Thank you,

Alejandro

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Depto. Geologia
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[nathanste...@gmail.com]

Martin how do I batch tile an entire folder of .las files?

[Albert Godfrind]

Besides the powerful ability of all las tools to operate on multiple files, remember you can also use shell scripts to process batches of files in an orderly way. 

Windows' scripting ability is poor but you can still write loops that process one file after the other. Linux's is of course much more powerful. But if you insist on using Windows, then look for the Cygwin environment that gives you a command interface similar to that if Linux including a fully functional bash shell with all scripting capabilities. (See https://www.cygwin.com)

Albert
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Albert Godfrind

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[Evon Silvia]

Just use wildcard characters like "*.las" and set the output directory using -odir. For example:

las2las -i c:/myfolder/*.las -odir c:/myoutput/

I strongly recommend reading the readme files thoroughly prior to posting on this forum. Most people are too nice to say RTFM, but making an effort to do so will improve your ability to help yourself.

Evon