public Halfedge() { PQnext = null; }
private Halfedge ELleft( Halfedge he ) { return he.ELleft; }
/* * This delete routine can't reclaim node, since pointers from hash table * may be present. */ private void ELdelete( Halfedge he ) { (he.ELleft).ELright = he.ELright; (he.ELright).ELleft = he.ELleft; he.deleted = true; }
private Halfedge ELright( Halfedge he ) { return he.ELright; }