Segment the point cloud with a plane

[hrvoje.lukacic]

Hi everyone!

Is there any way to cut a point cloud using a plane? I want to cut a PC using a plane and segment out a part of the pointcloud. I am sending a PrintScreen of the problem in the attachment.

Also, what is the best way to create a watertight mesh. Everytime I try to do that I have some holes and I can not calculate the volume

[DA523]

About hole closing ,you can use external sofware like Blender, Meshlab or freeCAD to close holes.
But when you import back to cc you may get some non-manifolds or worng vertics order(inverted normals ) and get wrong volume.

[daniel]

To segment the cloud, you just have to compute the (signed) distances between the cloud and the plane (with 'Tools > Distances > Cloud/Mesh Dist.' or 'Tools > Distances > Cloud/Primitive Dist.' if you have a recent version of CC.).

Then you can filter split the points based on their distance with 'Edit > Scalar fields > Filter by Value'.