qwtintervaldata(3) [debian 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)

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)