NAME
QwtClipper - Some clipping algos.
SYNOPSIS
#include <qwt_clipper.h>
Static Public Member Functions
static QwtPolygon clipPolygon (const QRect &, const QwtPolygon &)
static QwtPolygonF clipPolygonF (const QwtDoubleRect &, const
QwtPolygonF &)
static QwtArray< QwtDoubleInterval > clipCircle (const QwtDoubleRect &,
const QwtDoublePoint &, double radius)
Detailed Description
Some clipping algos.
Member Function Documentation
QwtArray< QwtDoubleInterval > QwtClipper::clipCircle (const QwtDoubleRect &
clipRect, const QwtDoublePoint & center, double radius) [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
Generated automatically by Doxygen for Qwt User’s Guide from the source
code.