Mirror用法

  switch (quadrantType)
             {
                 case QuadrantType.one:
                     db.setlayerCenter();
                     ids.Add(db.AddToModelSpace(arc));
                     db.setlayerDraw();
                     ids.Add(db.AddToModelSpace(line1, line2, arc111, arc222));
                     break;
                 case QuadrantType.two:
                     line1.Mirror(pt,pt.dPolar(, ), true);
                     line2.Mirror(pt, pt.dPolar(, ), true);
                     arc.Mirror(pt, pt.dPolar(, ), true);
                     arc111.Mirror(pt, pt.dPolar(, ), true);
                     arc222.Mirror(pt, pt.dPolar(, ), true);
                     db.setlayerCenter();
                     ids.Add(db.AddToModelSpace(arc));
                     db.setlayerDraw();
                     ids.Add(db.AddToModelSpace(line1, line2,arc111, arc222));
                     break;
                 case QuadrantType.three:
                     line1.Mirror(pt,pt.dPolar(, ), true);
                     line2.Mirror(pt, pt.dPolar(, ), true);
                     arc.Mirror(pt, pt.dPolar(, ), true);
                     arc111.Mirror(pt, pt.dPolar(, ), true);
                     arc222.Mirror(pt, pt.dPolar(, ), true);
                     line1.Mirror(pt,pt.dPolar(, ), true);
                     line2.Mirror(pt, pt.dPolar(, ), true);
                     arc.Mirror(pt, pt.dPolar(, ), true);
                     arc111.Mirror(pt, pt.dPolar(, ), true);
                     arc222.Mirror(pt, pt.dPolar(, ), true);
                     db.setlayerCenter();
                     ids.Add(db.AddToModelSpace(arc));
                     db.setlayerDraw();
                     ids.Add(db.AddToModelSpace(line1, line2,arc111, arc222));
                     break;
                 case QuadrantType.four:
                     line1.Mirror(pt,pt.dPolar(, ), true);
                     line2.Mirror(pt, pt.dPolar(, ), true);
                     arc.Mirror(pt, pt.dPolar(, ), true);
                     arc111.Mirror(pt, pt.dPolar(, ), true);
                     arc222.Mirror(pt, pt.dPolar(, ), true);
                     db.setlayerCenter();
                     ids.Add(db.AddToModelSpace(arc));
                     db.setlayerDraw();
                     ids.Add(db.AddToModelSpace(line1, line2,arc111, arc222));
                     break;
                 default:
                     break;
             }

mirror后删除原有 否则会出现冲突 然后将MIRROR后的实体加入DB中