| 548 | } |
| 549 | |
| 550 | virtual void invert (simple_trans_type &t) |
| 551 | { |
| 552 | t.invert (); |
| 553 | db::fixpoint_trans<coord_type> f (t.rot ()); |
| 554 | m_a = -f (m_a); |
| 555 | m_b = -f (m_b); |
| 556 | compute_det (); |
| 557 | } |
| 558 | |
| 559 | virtual bool equal (const ArrayBase *b) const |
| 560 | { |