trusty (3) QwtClipper.3.gz

NAME

       QwtClipper -

       Some clipping algos.

SYNOPSIS

       #include <qwt_clipper.h>

   Static Public Member Functions
       static QPolygon clipPolygon (const QRect &, 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 algos.

Member Function Documentation

   QVector< QwtInterval > QwtClipper::clipCircle (const QRectF &clipRect, const QPointF &center, doubleradius)
       [static] Circle clipping
       clipCircle() devides 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, boolclosePolygon = 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, boolclosePolygon =
       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.