Hi,

I have a geometry (a grid with mountain sop), and I deleted primitives on it in a cross pattern.

So visually, my geometry is separated in 4 pieces. I want to create a curve using the contour or open edges of each 4 parts.

I've managed to find a few ways, using Groups and Add sop but the curve jump from one piece to another since all 4 pieces are in the same group.

Is there a better way to created a curve based on open edges? If not, how can I use the Group sop to create 4 groups, one for each of my 4 pieces?

Thx!
C

connectivity sop might help you with that - it will create attribute based on connectivity, then you can group objects. then you can use partition sop to create groups based on that attribute

tmdag
connectivity sop might help you with that - it will create attribute based on connectivity, then you can group objects. then you can use partition sop to create groups based on that attribute

This worked like a charm. Many thx to you sir!
C

or just append Divide SOP directly after your delete1
and check Remove Shared Edges
you'll end up with 4 curves representing outlines(open edges) of your 4 separated geometries