QwtArrayData - Man Page
Name
QwtArrayData —
Data class containing two QwtArray<double> objects.
Synopsis
#include <qwt_data.h>
Inherits QwtData.
Public Member Functions
virtual QwtDoubleRect boundingRect () const
virtual QwtData * copy () const
QwtArrayData & operator= (const QwtArrayData &)
QwtArrayData (const double *x, const double *y, size_t size)
QwtArrayData (const QwtArray< double > &x, const QwtArray< double > &y)
virtual size_t size () const
virtual double x (size_t i) const
const QwtArray< double > & xData () const
virtual double y (size_t i) const
const QwtArray< double > & yData () 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_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()
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_ti) 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_ti) 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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