LAS/LAZ information content export

[bobbysmob...@gmail.com]

Hello LAStool Community,

Been digging but not having any luck...

Is there a tool and parameter sequence that can export much of the information generated in Lasinfo and store the various attributes in a SHP?

Kind of like what "lasboundary -i *.las -use_bb -overview -labels -o boundary.shp" generates.

Maybe call it lasinfo2shp?  :)

Interested in min x, min y, min z, max x, max y, max z, extended number of point records, # points per class, # withheld points, # overlap points, etc per tile.

Thanks,

Bobby

[Jeffrey...@novascotia.ca]

This is something I've wanted to see for a long time myself. My coding skills aren't quite up to snuff to handle this programmatically so I end up parsing individual lasinfo reports for this info and then importing it by field into excel. Works but takes some effort.

Jeff

[Susana Gonzalez]

Agree with Jeff and Bobby.

 

Happy to retire my R script and run just LAStools

 

From: last...@googlegroups.com <last...@googlegroups.com> On Behalf Of Jeffrey...@novascotia.ca
Sent: Friday, 30 April 2021 4:47 AM
To: LAStools - efficient tools for LiDAR processing <last...@googlegroups.com>
Subject: [LAStools] Re: LAS/LAZ information content export

 

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[bustaman...@gmail.com]

Yes, it would be great to have a tool inside lastools to summarize lasinfo text into an excel file. 

For the moment, my solution was to write a python/R script to get my summary. If you need help with a python/R script Jeff and Bobby, write me an email, I am happy to help you If I can do it. 

Regards

[Martin Isenburg]

Hello,

So essentially you want a lasboundary '-use_bb -overview -labels' that does not generate SHP files containing much geometry? If I just were to add more columns to the -labels using a new switch would that suffice? Because adding SHP support to lasinfo would mean significant code changes and relicensing.

Regards,

Martin

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[Guilherme Sanchez]

Hello,

I was also thinking of submitting a request like this from bobbysmob and the others weeks ago.
However, instead of exporting an Excel file I thought of the CSV format.
A CSV format would facilitate the generation as it is a txt file and would be easily opened in software such as Excel and Libreoffice.
Here is an example of how I imagined this new function could be:

lasinfo -i *.laz -nc -ocsv -o "00_lasinfo_table.csv" -colors 32 -cpu64

Normally, this command would generate separate txt files with all the information, making the evaluation of the totality of laz files difficult to do.
However, in this new way lasinfo would gather all the information into a single csv file, just like the example file attached.

Regards,

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