nav_code1.cc

[...]
 
TriMesh::HalfedgeHandle heh, heh_init;
 
// Get the halfedge handle assigned to vertex[0]
heh = heh_init = mesh.halfedge_handle(vertex[0].handle());
 
// heh now holds the handle to the initial halfedge.
// We now get further on the boundary by requesting
// the next halfedge adjacent to the vertex heh
// points to...
heh = mesh.next_halfedge_handle(heh);
 
// We can do this as often as we want:
while(heh != heh_init) {
        heh = mesh.next_halfedge_handle(heh);
}
 
[...]