A helper class for translating a series of points. More...

#include <qwt_point_mapper.h>

Classes
class	PrivateData

Public Types
enum	TransformationFlag { RoundPoints = 0x01 , WeedOutPoints = 0x02 , WeedOutIntermediatePoints = 0x04 }
	Flags affecting the transformation process. More...

Public Member Functions
	QwtPointMapper ()
	Constructor.

	~QwtPointMapper ()
	Destructor.

void	setFlags (TransformationFlags)
	Set the flags affecting the transformation process.

TransformationFlags	flags () const
	Get the flags affecting the transformation process.

void	setFlag (TransformationFlag, bool on=true)
	Modify a flag affecting the transformation process.

bool	testFlag (TransformationFlag) const
	Test if a flag is set.

void	setBoundingRect (const QRectF &)
	Set a bounding rectangle for the point mapping algorithm.

QRectF	boundingRect () const
	Get the bounding rectangle.

QPolygonF	toPolygonF (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtSeriesData< QPointF > *series, int from, int to) const
	Translate a series of points into a QPolygonF.

QPolygon	toPolygon (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtSeriesData< QPointF > *series, int from, int to) const
	Translate a series of points into a QPolygon.

QPolygon	toPoints (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtSeriesData< QPointF > *series, int from, int to) const
	Translate a series of points into a QPolygon (scattered points)

QPolygonF	toPointsF (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtSeriesData< QPointF > *series, int from, int to) const
	Translate a series into a QPolygonF (scattered points)

QImage	toImage (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtSeriesData< QPointF > *series, int from, int to, const QPen &, bool antialiased, uint numThreads) const
	Translate a series into a QImage.

Detailed Description

A helper class for translating a series of points.

Member Enumeration Documentation

◆ TransformationFlag

enum QwtPointMapper::TransformationFlag

Flags affecting the transformation process.

Enumerator
RoundPoints	Round points to integer values
WeedOutPoints	Try to remove points, that are translated to the same position
WeedOutIntermediatePoints	An even more aggressive weeding algorithm.

Constructor & Destructor Documentation

◆ QwtPointMapper()

QwtPointMapper::QwtPointMapper ( )

Constructor.

◆ ~QwtPointMapper()

QwtPointMapper::~QwtPointMapper ( )

Destructor.

Member Function Documentation

◆ boundingRect()

QRectF QwtPointMapper::boundingRect ( ) const

Get the bounding rectangle.

◆ flags()

QwtPointMapper::TransformationFlags QwtPointMapper::flags ( ) const

Get the flags affecting the transformation process.

◆ setBoundingRect()

void QwtPointMapper::setBoundingRect ( const QRectF & rect )

Set a bounding rectangle for the point mapping algorithm.

◆ setFlag()

void QwtPointMapper::setFlag	(	TransformationFlag	flag,
		bool	on = `true`
	)

Modify a flag affecting the transformation process.

◆ setFlags()

void QwtPointMapper::setFlags ( TransformationFlags flags )

Set the flags affecting the transformation process.

◆ testFlag()

bool QwtPointMapper::testFlag ( TransformationFlag flag ) const

Test if a flag is set.

◆ toImage()

QImage QwtPointMapper::toImage	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QwtSeriesData< QPointF > *	series,
		int	from,
		int	to,
		const QPen &	pen,
		bool	antialiased,
		uint	numThreads
	)		const

Translate a series into a QImage.

◆ toPoints()

QPolygon QwtPointMapper::toPoints	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QwtSeriesData< QPointF > *	series,
		int	from,
		int	to
	)		const

Translate a series of points into a QPolygon (scattered points)

◆ toPointsF()

QPolygonF QwtPointMapper::toPointsF	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QwtSeriesData< QPointF > *	series,
		int	from,
		int	to
	)		const

Translate a series into a QPolygonF (scattered points)

◆ toPolygon()

QPolygon QwtPointMapper::toPolygon	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QwtSeriesData< QPointF > *	series,
		int	from,
		int	to
	)		const

Translate a series of points into a QPolygon.

◆ toPolygonF()

QPolygonF QwtPointMapper::toPolygonF	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QwtSeriesData< QPointF > *	series,
		int	from,
		int	to
	)		const

Translate a series of points into a QPolygonF.

The documentation for this class was generated from the following files:

/home/runner/work/QWT/QWT/src/plot/qwt_point_mapper.h
/home/runner/work/QWT/QWT/src/plot/qwt_point_mapper.cpp

Classes

Public Types

Public Member Functions