_lwt_UpdateEdgeFaceRef()

static int _lwt_UpdateEdgeFaceRef ( LWT_TOPOLOGY *  topo, LWT_ELEMID  of, LWT_ELEMID  nf  )

static

Definition at line 3882 of file lwgeom_topo.c.

References LWT_ISO_EDGE::face_left, LWT_ISO_EDGE::face_right, lwt_be_updateEdges(), LWT_COL_EDGE_FACE_LEFT, and LWT_COL_EDGE_FACE_RIGHT.

Referenced by _lwt_RemEdge().

{
  LWT_ISO_EDGE sel_edge, upd_edge;
  int ret;

  assert( of != 0 );

  /* Update face_left for all edges still referencing old face */
  sel_edge.face_left = of;
  upd_edge.face_left = nf;
  ret = lwt_be_updateEdges(topo, &sel_edge, LWT_COL_EDGE_FACE_LEFT,
                                 &upd_edge, LWT_COL_EDGE_FACE_LEFT,
                                 NULL, 0);
  if ( ret == -1 ) return -1;

  /* Update face_right for all edges still referencing old face */
  sel_edge.face_right = of;
  upd_edge.face_right = nf;
  ret = lwt_be_updateEdges(topo, &sel_edge, LWT_COL_EDGE_FACE_RIGHT,
                                 &upd_edge, LWT_COL_EDGE_FACE_RIGHT,
                                 NULL, 0);
  if ( ret == -1 ) return -1;

  return 0;
}

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