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

QwtIntervalData -

#include <qwt_interval_data.h>


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
 

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.

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

Interval of a sample
Parameters:
i Sample index
Returns:
Interval
See also:
value(), size()

Returns:
Number of samples

Value of a sample
Parameters:
i Sample index
Returns:
Value
See also:
interval(), size()

Generated automatically by Doxygen for Qwt User's Guide from the source code.
Tue Nov 20 2012 Version 5.2.3

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