QwtArrayData (3) Linux Manual Page
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