QwtPointArrayData Class Reference

Interface for iterating over two QVector<double> objects. More...

#include <qwt_point_data.h>

Inheritance diagram for QwtPointArrayData:

Public Member Functions
	QwtPointArrayData (const QVector< double > &x, const QVector< double > &y)
	QwtPointArrayData (const double *x, const double *y, size_t size)
virtual QRectF	boundingRect () const
	Calculate the bounding rectangle. More...
virtual size_t	size () const
virtual QPointF	sample (size_t i) const
const QVector< double > &	xData () const
const QVector< double > &	yData () const
Public Member Functions inherited from QwtSeriesData< QPointF >
	QwtSeriesData ()
	Constructor.
virtual	~QwtSeriesData ()
	Destructor.
virtual void	setRectOfInterest (const QRectF &rect)

Additional Inherited Members
Protected Attributes inherited from QwtSeriesData< QPointF >
QRectF	d_boundingRect
	Can be used to cache a calculated bounding rectangle.

Detailed Description

Interface for iterating over two QVector<double> objects.

Constructor & Destructor Documentation

QwtPointArrayData::QwtPointArrayData	(	const QVector< double > &	x,
		const QVector< double > &	y
	)

Constructor

Parameters

x	Array of x values
y	Array of y values

See also

QwtPlotCurve::setData(), QwtPlotCurve::setSamples()

QwtPointArrayData::QwtPointArrayData	(	const double *	x,
		const double *	y,
		size_t	size
	)

Constructor

Parameters

x	Array of x values
y	Array of y values
size	Size of the x and y arrays

See also

QwtPlotCurve::setData(), QwtPlotCurve::setSamples()

Member Function Documentation

QRectF QwtPointArrayData::boundingRect ( ) const

virtual

Calculate the bounding rectangle.

The bounding rectangle is calculated once by iterating over all points and is stored for all following requests.

Returns

Bounding rectangle

Implements QwtSeriesData< QPointF >.

QPointF QwtPointArrayData::sample ( size_t  index ) const

virtual

Return the sample at position i

Parameters

index

Index

Returns

Sample at position i

Implements QwtSeriesData< QPointF >.

size_t QwtPointArrayData::size ( ) const

virtual

Returns

Size of the data set

Implements QwtSeriesData< QPointF >.

const QVector< double > & QwtPointArrayData::xData

(

)

const

Returns

Array of the x-values

const QVector< double > & QwtPointArrayData::yData

(

)

const

Returns

Array of the y-values