QwtPointArrayData Class Reference

Interface for iterating over two QVector<double> objects. More...

#include <qwt_series_data.h>

Inheritance diagram for QwtPointArrayData:
Inheritance graph
[legend]

List of all members.

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

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_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(), QwtPlotCurve::setSamples()

Member Function Documentation

QRectF QwtPointArrayData::boundingRect (  )  const [virtual]

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_t  i  )  const [virtual]

Return the sample at position i

Parameters:
i 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
Generated on Sun Nov 21 12:01:48 2010 for Qwt User's Guide by  doxygen 1.6.3