Can i use a vertex or an edge of a subd as a reference in Grasshopper?


i am modeling an object in grasshopper that will be a component of an assembly and am trying to get vertices or edges from the main subd object into grasshopper so it will always join at thesese points even if the subd objects scale or position changes.

I tried using pt geometry node but it doesn’t let me select vertices. Then i tried SubDVerts but this only gives me the control points not the vertices.

what is the best way to do this ?

You can get the SubD control polygon which is the non-subdivided mesh, do your operations on its vertices, and convert it back to a SubD.

that doesn’t solve my problem, i need to reference the vertices of the subdivided mesh, not the control polygon.

Then you may have to resort to scripting (cf. documentation)