QwtArrayData (3) - Linux Manuals

QwtArrayData: Data class containing two QwtArray<double> objects.

NAME

QwtArrayData - Data class containing two QwtArray<double> objects.

SYNOPSIS

#include <qwt_data.h>

Inherits QwtData.

Public Member Functions

QwtArrayData (const QwtArray< double > &x, const QwtArray< double > &y)

QwtArrayData (const double *x, const double *y, size_t size)

QwtArrayData & operator= (const QwtArrayData &)

virtual QwtData * copy () const

virtual size_t size () const

virtual double x (size_t i) const

virtual double y (size_t i) const

const QwtArray< double > & xData () const

const QwtArray< double > & yData () const

virtual QwtDoubleRect boundingRect () const

Detailed Description

Data class containing two QwtArray<double> objects.

Constructor & Destructor Documentation

QwtArrayData::QwtArrayData (const QwtArray< double > & x, const QwtArray< double > & y)

Constructor

Parameters:

x Array of x values
y Array of y values

See also:

QwtPlotCurve::setData()

QwtArrayData::QwtArrayData (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()

Member Function Documentation

QwtDoubleRect QwtArrayData::boundingRect () const [virtual]

Returns the bounding rectangle of the data. If there is no bounding rect, like for empty data the rectangle is invalid: QwtDoubleRect::isValid() == false

Reimplemented from QwtData.

QwtData * QwtArrayData::copy () const [virtual]

Returns:

Pointer to a copy (virtual copy constructor)

Implements QwtData.

QwtArrayData & QwtArrayData::operator= (const QwtArrayData & data)

Assignment.

size_t QwtArrayData::size () const [virtual]

Returns:

Size of the data set

Implements QwtData.

double QwtArrayData::x (size_t i) const [virtual]

Return the x value of data point i

Parameters:

i Index

Returns:

x X value of data point i

Implements QwtData.

const QwtArray< double > & QwtArrayData::xData () const

Returns:

Array of the x-values

double QwtArrayData::y (size_t i) const [virtual]

Return the y value of data point i

Parameters:

i Index

Returns:

y Y value of data point i

Implements QwtData.

const QwtArray< double > & QwtArrayData::yData () const

Returns:

Array of the y-values

Author

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