Man page - qwtclipper(3)
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Manual
| QwtClipper(3) | Qwt User's Guide | QwtClipper(3) |
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:
center Center of the circle
radius Radius of the circle
Returns:
QPolygon QwtClipper::clipPolygon (const QRect & clipRect, const QPolygon & polygon, bool closePolygon = false) [static]
Sutherland-Hodgman polygon clipping
Parameters:
polygon Polygon
closePolygon True, when the polygon is closed
Returns:
QPolygon QwtClipper::clipPolygon (const QRectF & clipRect, const QPolygon & polygon, bool closePolygon = false) [static]
Sutherland-Hodgman polygon clipping
Parameters:
polygon Polygon
closePolygon True, when the polygon is closed
Returns:
QPolygonF QwtClipper::clipPolygonF (const QRectF & clipRect, const QPolygonF & polygon, bool closePolygon = false) [static]
Sutherland-Hodgman polygon clipping
Parameters:
polygon Polygon
closePolygon True, when the polygon is closed
Returns:
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.
| Wed Jan 2 2019 | Version 6.1.4 |