1.gh (64.3 KB)
If you join the lines into polylines it does pull the mesh vertices to the polylines but not exactly to the curve ends.
The ‘Features’ input is for features to preserve, it does not insert points that do not already exist in the mesh.
If you want to add certain points before, and keep them fixed during the remeshing, here’s one way you can do that:
mesh_polysplit.gh (53.0 KB)