13 #include "qwt_global.h" 
   22 #if QT_VERSION < 0x060000 
   33         QPolygon&, 
bool closePolygon = 
false );
 
   36         QPolygon&, 
bool closePolygon = 
false );
 
   39         QPolygonF&, 
bool closePolygon = 
false );
 
   42         const QPolygon&, 
bool closePolygon = 
false );
 
   45         const QPolygon&, 
bool closePolygon = 
false );
 
   48         const QPolygonF&, 
bool closePolygon = 
false );
 
   51         const QRectF&, 
const QPointF&, 
double radius );
 
A class representing an interval.
Some clipping algorithms.
QWT_EXPORT void clipPolygon(const QRect &, QPolygon &, bool closePolygon=false)
QWT_EXPORT QPolygonF clippedPolygonF(const QRectF &, const QPolygonF &, bool closePolygon=false)
QWT_EXPORT void clipPolygonF(const QRectF &, QPolygonF &, bool closePolygon=false)
QWT_EXPORT QVector< QwtInterval > clipCircle(const QRectF &, const QPointF &, double radius)
QWT_EXPORT QPolygon clippedPolygon(const QRect &, const QPolygon &, bool closePolygon=false)