Bvert_list
LMESH::get_subdiv_inputs(CBvert_list& verts)
{
static bool debug = Config::get_var_bool("DEBUG_LMESH_SUBDIV_INPUTS",false);
// Given a set of vertices from the same LMESH, return
// the vertices of the parent LMESH that affect the
// subdivision locations of the given vertices.
// Require verts share common LMESH
// XXX - could relax this, provided we test each Bvert
// to ensure it is really an Lvert.
if (!dynamic_pointer_cast<LMESH>(verts.mesh()))
return Bvert_list();
// Get direct parent vertices and edges
Bvert_list vp; // vertex parents
Bedge_list ep; // edge parents
get_parents(verts, vp, ep);
err_adv(debug, "%d verts: parents: %d verts, %d edges",
verts.size(), vp.size(), ep.size());
// Clear flags of all adjacent faces
clear_face_flags(vp);
ep.clear_flag02();
// Put all adjacent faces into a list
Bface_list faces = get_q_faces(vp);
err_adv(debug, "parent faces from verts: %d", faces.size());
try_append(faces, ep.get_primary_faces());
err_adv(debug, "parent faces from edges too: %d", faces.size());
// Pull out the vertices:
return faces.get_verts();
}
