Functions¶

QWT_EXPORT void clipPolygon (const QRect &, QPolygon &, bool closePolygon=false)
QWT_EXPORT void clipPolygon (const QRectF &, QPolygon &, bool closePolygon=false)
QWT_EXPORT void clipPolygonF (const QRectF &, QPolygonF &, bool closePolygon=false)
QWT_EXPORT QPolygon clippedPolygon (const QRect &, const QPolygon &, bool closePolygon=false)
QWT_EXPORT QPolygon clippedPolygon (const QRectF &, const QPolygon &, bool closePolygon=false)
QWT_EXPORT QPolygonF clippedPolygonF (const QRectF &, const QPolygonF &, bool closePolygon=false)
QWT_EXPORT QVector< QwtInterval > clipCircle (const QRectF &, const QPointF &, double radius)

QVector< QwtInterval > QwtClipper::clipCircle (const QRectF & clipRect, const QPointF & center, double radius)¶

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

Returns

Definition at line 477 of file qwt_clipper.cpp.

QPolygon QwtClipper::clippedPolygon (const QRect & clipRect, const QPolygon & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Returns

Definition at line 437 of file qwt_clipper.cpp.

QPolygon QwtClipper::clippedPolygon (const QRectF & clipRect, const QPolygon & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Returns

Definition at line 420 of file qwt_clipper.cpp.

QPolygonF QwtClipper::clippedPolygonF (const QRectF & clipRect, const QPolygonF & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Returns

Definition at line 455 of file qwt_clipper.cpp.

void QwtClipper::clipPolygon (const QRect & clipRect, QPolygon & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Definition at line 390 of file qwt_clipper.cpp.

void QwtClipper::clipPolygon (const QRectF & clipRect, QPolygon & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Definition at line 369 of file qwt_clipper.cpp.

void QwtClipper::clipPolygonF (const QRectF & clipRect, QPolygonF & polygon, bool closePolygon = false)¶

Sutherland-Hodgman polygon clipping

Parameters

Definition at line 404 of file qwt_clipper.cpp.