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

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

NAME

       QwtPolygonFData -

       Data class containing a single QwtArray<QwtDoublePoint> object.

SYNOPSIS

       #include <qwt_data.h>

       Inherits QwtData.

   Public Member Functions
       virtual QwtDoubleRect boundingRect () const
       virtual QwtData * copy () const
       const QPolygonF & data () const
       QwtPolygonFData & operator= (const QwtPolygonFData &)
       QwtPolygonFData (const QPolygonF &)
       virtual size_t size () const
       virtual double x (size_t i) const
       virtual double y (size_t i) const

Detailed Description
       Data class containing a single QwtArray<QwtDoublePoint> object.

Constructor &; Destructor Documentation
   QwtPolygonFData::QwtPolygonFData (const QPolygonF &polygon) Constructor
       Parameters:
	   polygon Polygon data

       See also:
	   QwtPlotCurve::setData()

Member Function Documentation
   QwtDoubleRect QwtData::boundingRect () const [virtual, inherited] Returns the bounding rectangle of the data. If there is no bounding rect,
       like for empty data the rectangle is invalid: QwtDoubleRect::isValid() == false
       Warning:
	   This is an slow implementation iterating over all points. It is intended to be overloaded by derived classes. In case of auto scaling
	   boundingRect() is called for every replot, so it might be worth to implement a cache, or use x(0), x(size() - 1) for ordered data ...

       Reimplemented in QwtArrayData, and QwtCPointerData.

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

       Implements QwtData.

   const QPolygonF & QwtPolygonFData::data () const Returns:
	   Point array

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

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

       Implements QwtData.

   double QwtPolygonFData::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.

   double QwtPolygonFData::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.

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

Version 5.2.2							  Mon Aug 1 2011						QwtPolygonFData(3)

Linux and UNIX Man Pages

qwtcpointerdata(3) [debian man page]

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