QwtPointArrayData (3)

#include <qwt_series_data.h>

Inherits QwtSeriesData< QPointF >.

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

virtual size_t size () const

virtual QPointF sample (size_t i) const

const QVector< double > & xData () const

const QVector< double > & yData () const

Interface for iterating over two QVector<double> objects.

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_tsize) 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()

QRectF QwtPointArrayData::boundingRect () const\fC [virtual]\fP

Calculate the bounding rect. 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_ti) const\fC [virtual]\fP Return the sample at position i

Parameters:

i Index

Returns:

Sample at position i

Implements QwtSeriesData< QPointF >.

size_t QwtPointArrayData::size () const\fC [virtual]\fP \fBReturns:\fP

Size of the data set

Implements QwtSeriesData< QPointF >.

const QVector< double > & QwtPointArrayData::xData () const \fBReturns:\fP

Array of the x-values

const QVector< double > & QwtPointArrayData::yData () const \fBReturns:\fP

Array of the y-values

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