void ME_Replace_Vertex(MEdge_ptr e, MVertex_ptr oldv, MVertex_ptr nuv) {
if (e->vertex[0] == oldv) {
e->vertex[0] = nuv;
MV_Add_Edge(nuv,e);
MV_Rem_Edge(oldv,e);
}
else if (e->vertex[1] == oldv) {
e->vertex[1] = nuv;
MV_Add_Edge(nuv,e);
MV_Rem_Edge(oldv,e);
}
else
MSTK_Report("ME_Replace_Vertex","Cannot find vertex in edge",MSTK_ERROR);
}
void ME_Delete_F1(MEdge_ptr e, int keep) {
MEdge_Adj_F1 *adj;
if (MEnt_Dim((MEntity_ptr) e) != MDELETED) { /* if edge hasnt been temporarily deleted */
if (e->vertex[0]) MV_Rem_Edge(e->vertex[0],e);
if (e->vertex[1]) MV_Rem_Edge(e->vertex[1],e);
}
if (!keep) {
adj = (MEdge_Adj_F1 *) e->adj;
if (adj) {
if (adj->efaces)
List_Delete(adj->efaces);
free(adj);
}
}
}
