QwtCPointerData Class Reference

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

#include <qwt_series_data.h>

Inheritance diagram for QwtCPointerData:

[legend]

List of all members.

Public Member Functions
	QwtCPointerData (const double *x, const double *y, size_t size)
QwtCPointerData &	operator= (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()

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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