I try to use Geometry.Intersectall to filter the mesh, cause I only want to get the mesh on the analysis surface (red boundary). But I don’t know where I did wrong steps and I got the empty list.
Yes, I think so. The surface and the mesh, both of them are in the same level.
I tried to switch lacing in Cross Product. It looks working, but I’m wondering how I can remove the rest mesh I don’t want?