LASClip : classify option with extended class ?

[Thomas RISTORCELLI]

Hi,

I'm using lasclip with the option "-classify" in order to change the classification of points inside SHP polygons.

Everything works perfectly except I can't use classification values over 31. 

All my LAZ files are 1.4

Is there an option I'm missing somewhere ?

Thanks

Thomas

[LAStools - efficient tools for LiDAR processing]

Hi Thomas,

lasclip/lasclip64 does only support 31 classes.

As a workaround you can separate using lasclip64, then set the class in the separation to an extended class (-set_extended_classification), and then merge the files using lascopy64.

We will implement an update to this limitation soon so you can do this in one step.

Cheers,

Jochen @rapidlasso

[Thomas RISTORCELLI]

Hi,

Thanks for the quick answer. 

I implemented a similar workaround with las2las which does not recquire spliiting and merging files but I use a temporary unused class ID :

- Set class with lasclip -classify at a temporary unused class ID

- Use las2las with option -change_extended_classification_from_to in order to switch to the appropriate ID.

That's one of the things I like most about LASTools : there almost always a workaround solution ;-)

An update on lasclip will be nice !

Cheers

Thomas

[LAStools - efficient tools for LiDAR processing]

Hi Thomas,

this is indeed a much simpler workaround,

thanks for sharing!

Cheers,

Jochen @rapidlasso