QwtClipper man page
QwtClipper —
Some clipping algos.
Synopsis
#include <qwt_clipper.h>
Static Public Member Functions
static QwtArray< QwtDoubleInterval > clipCircle (const QwtDoubleRect &, const QwtDoublePoint &, double radius)
static QwtPolygon clipPolygon (const QRect &, const QwtPolygon &)
static QwtPolygonF clipPolygonF (const QwtDoubleRect &, const QwtPolygonF &)
Detailed Description
Some clipping algos.
Member Function Documentation
QwtArray< QwtDoubleInterval > QwtClipper::clipCircle (const QwtDoubleRect &clipRect, const QwtDoublePoint ¢er, 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
QwtPolygon QwtClipper::clipPolygon (const QRect &clipRect, const QwtPolygon &polygon) [static] Sutherland-Hodgman polygon clipping
- Parameters:
clipRect Clip rectangle
polygon Polygon- Returns:
Clipped polygon
QwtPolygonF QwtClipper::clipPolygonF (const QwtDoubleRect &clipRect, const QwtPolygonF &polygon) [static] Sutherland-Hodgman polygon clipping
- Parameters:
clipRect Clip rectangle
polygon Polygon- Returns:
Clipped polygon
Author
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