table of contents
conflicting packages
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 ¢er, doubleradius) [static]¶
Circle clippingclipCircle() 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
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 clippingParameters:
clipRect Clip rectangle
polygon Polygon
closePolygon True, when the polygon is closed
polygon Polygon
closePolygon True, when the polygon is closed
Returns:
Clipped polygon
QPolygon QwtClipper::clipPolygon (const QRectF &clipRect, const QPolygon &polygon, boolclosePolygon = false) [static]¶
Sutherland-Hodgman polygon clippingParameters:
clipRect Clip rectangle
polygon Polygon
closePolygon True, when the polygon is closed
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 clippingParameters:
clipRect Clip rectangle
polygon Polygon
closePolygon True, when the polygon is closed
polygon Polygon
closePolygon True, when the polygon is closed
Returns:
Clipped polygon
Author¶
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