QwtCPointerData Class Reference

Data class containing two pointers to memory blocks of doubles. More...

#include <qwt_series_data.h>

Inheritance diagram for QwtCPointerData:

Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtCPointerData (const double *x, const double *y, size_t size)
QwtCPointerDataoperator= (const QwtCPointerData &)
virtual QwtSeriesData
< QwtDoublePoint > * 
copy () const
virtual QwtDoubleRect boundingRect () const
virtual size_t size () const
virtual QwtDoublePoint sample (size_t i) const
const double * xData () const
const double * yData () const


Detailed Description

Data class containing two pointers to memory blocks of doubles.

Constructor & Destructor Documentation

QwtCPointerData::QwtCPointerData ( 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
Warning:
The programmer must assure that the memory blocks referenced by the pointers remain valid during the lifetime of the QwtPlotCPointer object.
See also:
QwtPlotCurve::setData(), QwtPlotCurve::setRawData()


Member Function Documentation

QwtDoubleRect QwtCPointerData::boundingRect (  )  const [virtual]

Calculate the bounding rect.

This implementation iterates over all points.

Returns:
Bounding rectangle

Implements QwtSeriesData< QwtDoublePoint >.

QwtSeriesData< QwtDoublePoint > * QwtCPointerData::copy (  )  const [virtual]

Returns:
Pointer to a copy (virtual copy constructor)

Implements QwtSeriesData< QwtDoublePoint >.

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

Assignment.

QwtDoublePoint QwtCPointerData::sample ( size_t  i  )  const [virtual]

Return the sample at position i

Parameters:
i Index
Returns:
Sample at position i

Implements QwtSeriesData< QwtDoublePoint >.

size_t QwtCPointerData::size (  )  const [virtual]

Returns:
Size of the data set

Implements QwtSeriesData< QwtDoublePoint >.

const double * QwtCPointerData::xData (  )  const

Returns:
Array of the x-values

const double * QwtCPointerData::yData (  )  const

Returns:
Array of the y-values


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