Substracting point cloud from another

Feel free to ask any question here
Post Reply
guysadot
Posts: 8
Joined: Sun Jul 11, 2021 10:52 am

Substracting point cloud from another

Post by guysadot »

Hello!
I have two point clouds, one of them contain about half of the points of the other. Now I'm interested about the other half and would like to extract him as a separate las.
can it be done?
Thanks for all the responders

Guy
daniel
Site Admin
Posts: 7707
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
Contact:

Re: Substracting point cloud from another

Post by daniel »

Hi,

Yes that's fairly easy. Use the C2C tool (Tools > Distances > Compute cloud to cloud distances). Use the larger cloud as the compared cloud, and the smaller one as the reference. You can also a max distance to something very small (but not 0) so as to speed up the computation if the clouds are large.

Then, once the computation is done (you'll have to hit the red 'compute' button), close the tool, select the compared cloud (the large one) and finally use the 'Edit > Scalar fields > Filter by value' tool. You can set the min and max values to 0, and choose to 'split' the cloud.
Daniel, CloudCompare admin
Post Reply