changeset 836 | 62d621e3e550 |
parent 824 | 36eb4b8f409e |
1.1 --- a/geometry.h Thu Feb 25 11:03:52 2010 +0000 1.2 +++ b/geometry.h Mon Mar 15 15:32:37 2010 +0000 1.3 @@ -18,6 +18,7 @@ 1.4 friend inline bool operator==(const Vector &v1, const Vector &v2 ) 1.5 { return v1.x()==v2.x() && v1.y()==v2.y(); } 1.6 1.7 + bool isNull(); 1.8 virtual void normalize (); 1.9 virtual qreal dotProduct (const QPointF &b); 1.10 virtual void scale (const qreal &f);