qwtcpointerdata(3) [debian man page]

QwtCPointerData(3)						 Qwt User's Guide						QwtCPointerData(3)

NAME

       QwtCPointerData -

       Data class containing two pointers to memory blocks of doubles.

SYNOPSIS

       #include <qwt_data.h>

       Inherits QwtData.

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

   QwtData * QwtCPointerData::copy () const [virtual] Returns:
	   Pointer to a copy (virtual copy constructor)

       Implements QwtData.

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

   size_t QwtCPointerData::size () const [virtual] Returns:
	   Size of the data set

       Implements QwtData.

   double QwtCPointerData::x (size_ti) const [virtual] Return the x value of data point i
       Parameters:
	   i Index

       Returns:
	   x X value of data point i

       Implements QwtData.

   const double * QwtCPointerData::xData () const Returns:
	   Array of the x-values

   double QwtCPointerData::y (size_ti) const [virtual] Return the y value of data point i
       Parameters:
	   i Index

       Returns:
	   y Y value of data point i

       Implements QwtData.

   const double * QwtCPointerData::yData () const Returns:
	   Array of the y-values

Author
       Generated automatically by Doxygen for Qwt User's Guide from the source code.

Version 5.2.2							  Mon Aug 1 2011						QwtCPointerData(3)

Check Out this Related Man Page

QwtIntervalData(3)						 Qwt User's Guide						QwtIntervalData(3)

NAME

       QwtIntervalData -

       Series of samples of a value and an interval.

SYNOPSIS

       #include <qwt_interval_data.h>

   Public Member Functions
       QwtDoubleRect boundingRect () const
       const QwtDoubleInterval & interval (size_t i) const
       QwtIntervalData (const QwtArray< QwtDoubleInterval > &, const QwtArray< double > &)
       QwtIntervalData ()
       void setData (const QwtArray< QwtDoubleInterval > &, const QwtArray< double > &)
       size_t size () const
       double value (size_t i) const
       ~QwtIntervalData ()

Detailed Description
       Series of samples of a value and an interval.

       QwtIntervalData is a series of samples of a value and an interval. F.e. error bars are built from samples [x, y1-y2], while a histogram
       might consist of [x1-x2, y] samples.

Constructor &; Destructor Documentation
   QwtIntervalData::QwtIntervalData ()
       Constructor.

   QwtIntervalData::QwtIntervalData (const QwtArray< QwtDoubleInterval > &intervals, const QwtArray< double > &values)
       Constructor.

   QwtIntervalData::~QwtIntervalData ()
       Destructor.

Member Function Documentation
   QwtDoubleRect QwtIntervalData::boundingRect () const Calculate the bounding rectangle of the samples
       The x coordinates of the rectangle are built from the intervals, the y coordinates from the values.

       Returns:
	   Bounding rectangle

   const QwtDoubleInterval & QwtIntervalData::interval (size_ti) const [inline] Interval of a sample
       Parameters:
	   i Sample index

       Returns:
	   Interval

       See also:
	   value(), size()

   void QwtIntervalData::setData (const QwtArray< QwtDoubleInterval > &intervals, const QwtArray< double > &values)
       Assign samples.

   size_t QwtIntervalData::size () const [inline] Returns:
	   Number of samples

   double QwtIntervalData::value (size_ti) const [inline] Value of a sample
       Parameters:
	   i Sample index

       Returns:
	   Value

       See also:
	   interval(), size()

Author
       Generated automatically by Doxygen for Qwt User's Guide from the source code.

Version 5.2.2							  Mon Aug 1 2011						QwtIntervalData(3)

Linux and UNIX Man Pages

qwtcpointerdata(3) [debian man page]

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