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;
}
