QwtIntervalData Class Reference

#include <qwt_interval_data.h>

List of all members.

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

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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.

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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_t  i ) 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_t  i ) const

inline

Value of a sample

Parameters:

i	Sample index

Returns:

Value

See also:

interval(), size()