NAME

       QwtClipper - Some clipping algorithms.

SYNOPSIS

       #include <qwt_clipper.h>

   Static Public Member Functions
       static QPolygon clipPolygon (const QRect &, const QPolygon &, bool closePolygon=false)
       static QPolygon clipPolygon (const QRectF &, const QPolygon &, bool closePolygon=false)
       static QPolygonF clipPolygonF (const QRectF &, const QPolygonF &, bool closePolygon=false)
       static QVector< QwtInterval > clipCircle (const QRectF &, const QPointF &, double radius)

Detailed Description

       Some clipping algorithms.

Member Function Documentation

   QVector< QwtInterval > QwtClipper::clipCircle (const QRectF & clipRect, const QPointF &
       center, double radius) [static]
       Circle clipping

       clipCircle() divides a circle into intervals of angles representing arcs of the circle.
       When the circle is completely inside the clip rectangle an interval [0.0, 2 * M_PI] is
       returned.

       Parameters:
           clipRect Clip rectangle
           center Center of the circle
           radius Radius of the circle

       Returns:
           Arcs of the circle

   QPolygon QwtClipper::clipPolygon (const QRect & clipRect, const QPolygon & polygon, bool
       closePolygon = false) [static]
       Sutherland-Hodgman polygon clipping

       Parameters:
           clipRect Clip rectangle
           polygon Polygon
           closePolygon True, when the polygon is closed

       Returns:
           Clipped polygon

   QPolygon QwtClipper::clipPolygon (const QRectF & clipRect, const QPolygon & polygon, bool
       closePolygon = false) [static]
       Sutherland-Hodgman polygon clipping

       Parameters:
           clipRect Clip rectangle
           polygon Polygon
           closePolygon True, when the polygon is closed

       Returns:
           Clipped polygon

   QPolygonF QwtClipper::clipPolygonF (const QRectF & clipRect, const QPolygonF & polygon, bool
       closePolygon = false) [static]
       Sutherland-Hodgman polygon clipping

       Parameters:
           clipRect Clip rectangle
           polygon Polygon
           closePolygon True, when the polygon is closed

       Returns:
           Clipped polygon

Author

       Generated automatically by Doxygen for Qwt User's Guide from the source code.