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QwtCPointerData Class Reference

Inheritance diagram for QwtCPointerData:

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Collaboration diagram for QwtCPointerData:

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List of all members.

Detailed Description

Data class containing two pointers to memory blocks of doubles.

Definition at line 125 of file qwt_data.h.

Public Member Functions

 QwtCPointerData (const double *x, const double *y, size_t size)
QwtCPointerDataoperator= (const QwtCPointerData &)
virtual QwtDatacopy () const
virtual size_t size () const
virtual double x (size_t i) const
virtual double y (size_t i) const
virtual QwtDoubleRect boundingRect () const


Constructor & Destructor Documentation

QwtCPointerData::QwtCPointerData const double *  x,
const double *  y,
size_t  size
 

Constructor

Warning:
The programmer must assure that the memory blocks referenced by the pointers remain valid during the lifetime of the QwtPlotCPointer object.
See also:
QwtCurve::setRawData and QwtPlot::setCurveRawData.

Definition at line 187 of file qwt_data.cpp.

Referenced by copy().


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 230 of file qwt_data.cpp.

References size().

QwtData * QwtCPointerData::copy  )  const [virtual]
 

Return a pointer to a copy (virtual copy constructor)

Implements QwtData.

Definition at line 220 of file qwt_data.cpp.

References QwtCPointerData().

QwtCPointerData & QwtCPointerData::operator= const QwtCPointerData  ) 
 

Assignment.

Definition at line 194 of file qwt_data.cpp.

References d_size, d_x, and d_y.

size_t QwtCPointerData::size  )  const [virtual]
 

Return the size of the data set

Implements QwtData.

Definition at line 205 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 210 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 215 of file qwt_data.cpp.


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