QwtCPointerData Class Reference

Inheritance diagram for QwtCPointerData:

[legend]Collaboration diagram for QwtCPointerData:

[legend]List of all members.

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Detailed Description

Data class containing two pointers to memory blocks of doubles.

Definition at line 144 of file qwt_data.h.

Public Member Functions
	QwtCPointerData (const double *x, const double *y, size_t size)
QwtCPointerData &	operator= (const QwtCPointerData &)
virtual QwtData *	copy () const
virtual size_t	size () const
virtual double	x (size_t i) const
virtual double	y (size_t i) const
const double *	xData () const
const double *	yData () const
virtual QwtDoubleRect	boundingRect () const

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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() Definition at line 281 of file qwt_data.cpp. Referenced by copy().

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Member Function Documentation

QwtDoubleRect QwtCPointerData::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. Definition at line 354 of file qwt_data.cpp. References size().

QwtData * QwtCPointerData::copy (   )  const [virtual]

Returns: Pointer to a copy (virtual copy constructor) Implements QwtData. Definition at line 344 of file qwt_data.cpp. References QwtCPointerData().

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

Assignment. Definition at line 290 of file qwt_data.cpp. References d_size, d_x, and d_y.

size_t QwtCPointerData::size (   )  const [virtual]

Returns: Size of the data set Implements QwtData. Definition at line 302 of file qwt_data.cpp. Referenced by boundingRect().

double QwtCPointerData::x (  size_t  i  )  const [virtual]

Return the x value of data point i Parameters: i  Index Returns: x X value of data point i Implements QwtData. Definition at line 313 of file qwt_data.cpp.

const double * QwtCPointerData::xData (   )  const

Returns: Array of the x-values Definition at line 330 of file qwt_data.cpp.

double QwtCPointerData::y (  size_t  i  )  const [virtual]

Return the y value of data point i Parameters: i  Index Returns: y Y value of data point i Implements QwtData. Definition at line 324 of file qwt_data.cpp.

const double * QwtCPointerData::yData (   )  const

Returns: Array of the y-values Definition at line 336 of file qwt_data.cpp.

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