NAME

       QwtIntervalData -

SYNOPSIS

       #include <qwt_interval_data.h>

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

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.

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()

   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

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