11 /////////////////////////////////////////////////////////////////////////////
12 QString qpointToString (const QPoint &p);
13 QString qpointfToString (const QPointF &p);
14 extern ostream &operator<< (ostream &stream, QPoint const &p);
15 extern ostream &operator<< (ostream &stream, QPointF const &p);
16 qreal getAngle(const QPointF &);
17 QPointF normalise (const QPointF &);
18 qreal max (qreal,qreal);