QwtPointArrayData man page

QwtPointArrayData —

Interface for iterating over two QVector<double> objects.

Synopsis

#include <qwt_point_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
Calculate the bounding rectangle.
virtual size_t size () const

virtual QPointF sample (size_t i) const

const QVector< double > & xData () const

const QVector< double > & yData () const

Additional Inherited Members

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_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()

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_tindex) 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

Author

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Info

Thu Dec 11 2014 Version 6.1.2 Qwt User's Guide