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

virtual QRectF boundingRect () const
 QwtPointArrayData (const double *x, const double *y, size_t size)
 QwtPointArrayData (const QVector< double > &x, const QVector< double > &y)
virtual QPointF sample (size_t i) const
virtual void setRectOfInterest (const QRectF &)
virtual size_t size () const
const QVector< double > & xData () const
const QVector< double > & yData () const

Protected Attributes

QRectF d_boundingRect


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


Member Data Documentation

QRectF QwtSeriesData< QPointF >::d_boundingRect [mutable, protected, inherited]

Can be used to cache a calculated bounding rectangle.


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