A class representing an interval. More...

#include <qwt_interval.h>

Public Types
enum	BorderFlag { IncludeBorders = 0x00 , ExcludeMinimum = 0x01 , ExcludeMaximum = 0x02 , ExcludeBorders = ExcludeMinimum \| ExcludeMaximum }

Public Member Functions
	QwtInterval ()
	Border flags.

	QwtInterval (double minValue, double maxValue, BorderFlags=IncludeBorders)
	Constructor with min/max values.

void	setInterval (double minValue, double maxValue, BorderFlags=IncludeBorders)
	Assign the limits of the interval.

QwtInterval	normalized () const
	Normalize the limits of the interval.

QwtInterval	inverted () const
	Invert the interval.

QwtInterval	limited (double lowerBound, double upperBound) const
	Limit the interval, keeping the border modes.

bool	operator== (const QwtInterval &) const
	Compare two intervals.

bool	operator!= (const QwtInterval &) const
	Compare two intervals.

void	setBorderFlags (BorderFlags)
	Change the border flags.

BorderFlags	borderFlags () const

double	minValue () const

double	maxValue () const

double	centerValue () const

double	width () const
	Return the width of an interval.

long double	widthL () const
	Return the width of an interval as long double.

void	setMinValue (double)
	Assign the lower limit of the interval.

void	setMaxValue (double)
	Assign the upper limit of the interval.

bool	contains (double value) const
	Test if a value is inside an interval.

bool	contains (const QwtInterval &) const
	Test if an interval is inside an interval.

bool	intersects (const QwtInterval &) const
	Test if two intervals overlap.

QwtInterval	intersect (const QwtInterval &) const
	Intersect two intervals.

QwtInterval	unite (const QwtInterval &) const
	Unite two intervals.

QwtInterval	operator\| (const QwtInterval &) const
	Union of two intervals.

QwtInterval	operator& (const QwtInterval &) const
	Intersection of two intervals.

QwtInterval &	operator\|= (const QwtInterval &)
	Unite this interval with the given interval.

QwtInterval &	operator&= (const QwtInterval &)
	Intersect this interval with the given interval.

QwtInterval	extend (double value) const
	Extend the interval.

QwtInterval	operator\| (double) const
	Extend an interval.

QwtInterval &	operator\|= (double)
	Extend an interval.

bool	isValid () const
	Check if the interval is valid.

bool	isNull () const
	Check if interval is null.

void	invalidate ()
	Invalidate the interval.

QwtInterval	symmetrize (double value) const
	Symmetrize the interval around a value.

Detailed Description

A class representing an interval.

Member Enumeration Documentation

◆ BorderFlag

enum QwtInterval::BorderFlag

Flag indicating if a border is included or excluded

See also: setBorderFlags(), borderFlags()

Enumerator
IncludeBorders	Min/Max values are inside the interval
ExcludeMinimum	Min value is not included in the interval
ExcludeMaximum	Max value is not included in the interval
ExcludeBorders	Min/Max values are not included in the interval

Constructor & Destructor Documentation

◆ QwtInterval() [1/2]

QwtInterval::QwtInterval ( )

inline

Border flags.

Default Constructor.

◆ QwtInterval() [2/2]

QwtInterval::QwtInterval	(	double	minValue,
		double	maxValue,
		BorderFlags	borderFlags = `IncludeBorders`
	)

inline

Constructor with min/max values.

Member Function Documentation

◆ borderFlags()

QwtInterval::BorderFlags QwtInterval::borderFlags ( ) const

inline

Returns: Border flags

See also: setBorderFlags()

◆ centerValue()

double QwtInterval::centerValue ( ) const

inline

Returns: Center of the interval

See also: width()

◆ contains() [1/2]

bool QwtInterval::contains ( const QwtInterval & interval ) const

Test if an interval is inside an interval.

◆ contains() [2/2]

bool QwtInterval::contains ( double value ) const

Test if a value is inside an interval.

◆ extend()

QwtInterval QwtInterval::extend ( double value ) const

Extend the interval.

◆ intersect()

QwtInterval QwtInterval::intersect ( const QwtInterval & other ) const

Intersect two intervals.

◆ intersects()

bool QwtInterval::intersects ( const QwtInterval & other ) const

Test if two intervals overlap.

◆ invalidate()

void QwtInterval::invalidate ( )

inline

Invalidate the interval.

◆ inverted()

QwtInterval QwtInterval::inverted ( ) const

Invert the interval.

◆ isNull()

bool QwtInterval::isNull ( ) const

inline

Check if interval is null.

◆ isValid()

bool QwtInterval::isValid ( ) const

inline

Check if the interval is valid.

◆ limited()

QwtInterval QwtInterval::limited	(	double	lowerBound,
		double	upperBound
	)		const

Limit the interval, keeping the border modes.

◆ maxValue()

double QwtInterval::maxValue ( ) const

inline

Returns: Maximum value of the interval

See also: setMaxValue()

◆ minValue()

double QwtInterval::minValue ( ) const

inline

Returns: Minimum value of the interval

See also: setMinValue()

◆ normalized()

QwtInterval QwtInterval::normalized ( ) const

Normalize the limits of the interval.

◆ operator!=()

bool QwtInterval::operator!= ( const QwtInterval & other ) const

inline

Compare two intervals.

◆ operator&()

QwtInterval QwtInterval::operator& ( const QwtInterval & other ) const

inline

Intersection of two intervals.

◆ operator&=()

QwtInterval & QwtInterval::operator&= ( const QwtInterval & other )

Intersect this interval with the given interval.

◆ operator==()

bool QwtInterval::operator== ( const QwtInterval & other ) const

inline

Compare two intervals.

◆ operator|() [1/2]

QwtInterval QwtInterval::operator| ( const QwtInterval & other ) const

inline

Union of two intervals.

◆ operator|() [2/2]

QwtInterval QwtInterval::operator| ( double value ) const

inline

Extend an interval.

◆ operator|=() [1/2]

QwtInterval & QwtInterval::operator|= ( const QwtInterval & other )

Unite this interval with the given interval.

◆ operator|=() [2/2]

QwtInterval & QwtInterval::operator|= ( double value )

Extend an interval.

◆ setBorderFlags()

void QwtInterval::setBorderFlags ( BorderFlags borderFlags )

inline

Change the border flags.

◆ setInterval()

void QwtInterval::setInterval	(	double	minValue,
		double	maxValue,
		BorderFlags	borderFlags = `IncludeBorders`
	)

inline

Assign the limits of the interval.

◆ setMaxValue()

void QwtInterval::setMaxValue ( double maxValue )

inline

Assign the upper limit of the interval.

◆ setMinValue()

void QwtInterval::setMinValue ( double minValue )

inline

Assign the lower limit of the interval.

◆ symmetrize()

QwtInterval QwtInterval::symmetrize ( double value ) const

Symmetrize the interval around a value.

◆ unite()

QwtInterval QwtInterval::unite ( const QwtInterval & other ) const

Unite two intervals.

◆ width()

double QwtInterval::width ( ) const

inline

Return the width of an interval.

◆ widthL()

long double QwtInterval::widthL ( ) const

inline

Return the width of an interval as long double.

The documentation for this class was generated from the following files:

/home/runner/work/QWT/QWT/src/plot/qwt_interval.h
/home/runner/work/QWT/QWT/src/plot/qwt_interval.cpp

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ BorderFlag

Constructor & Destructor Documentation

◆ QwtInterval() [1/2]

◆ QwtInterval() [2/2]

Member Function Documentation

◆ borderFlags()

◆ centerValue()

◆ contains() [1/2]

◆ contains() [2/2]

◆ extend()

◆ intersect()

◆ intersects()

◆ invalidate()

◆ inverted()

◆ isNull()

◆ isValid()

◆ limited()

◆ maxValue()

◆ minValue()

◆ normalized()

◆ operator!=()

◆ operator&()

◆ operator&=()

◆ operator==()

◆ operator|() [1/2]

◆ operator|() [2/2]

◆ operator|=() [1/2]

◆ operator|=() [2/2]

◆ setBorderFlags()

◆ setInterval()

◆ setMaxValue()

◆ setMinValue()

◆ symmetrize()

◆ unite()

◆ width()

◆ widthL()