A class representing a scale division. More...

#include <qwt_scale_div.h>

Public Types
enum	TickType { NoTick = -1, MinorTick, MediumTick, MajorTick, NTickTypes }
	Scale tick types. More...

Public Member Functions
QwtScaleDiv	bounded (double lowerBound, double upperBound) const

bool	contains (double value) const

QwtInterval	interval () const

void	invert ()

QwtScaleDiv	inverted () const

bool	isEmpty () const
	Check if the scale division is empty( lowerBound() == upperBound() ) More...

bool	isIncreasing () const
	Check if the scale division is increasing( lowerBound() <= upperBound() ) More...

double	lowerBound () const

bool	operator!= (const QwtScaleDiv &) const
	Inequality. More...

bool	operator== (const QwtScaleDiv &) const
	Equality operator. More...

	QwtScaleDiv (double lowerBound=0.0, double upperBound=0.0)

	QwtScaleDiv (const QwtInterval &, QList< double >[NTickTypes])

	QwtScaleDiv (double lowerBound, double upperBound, QList< double >[NTickTypes])

	QwtScaleDiv (double lowerBound, double upperBound, const QList< double > &minorTicks, const QList< double > &mediumTicks, const QList< double > &majorTicks)

double	range () const

void	setInterval (double lowerBound, double upperBound)

void	setInterval (const QwtInterval &)

void	setLowerBound (double)

void	setTicks (int tickType, const QList< double > &)

void	setUpperBound (double)

QList< double >	ticks (int tickType) const

double	upperBound () const

Private Attributes
double	d_lowerBound

QList< double >	d_ticks [NTickTypes]

double	d_upperBound

Detailed Description

A class representing a scale division.

A Qwt scale is defined by its boundaries and 3 list for the positions of the major, medium and minor ticks.

The upperBound() might be smaller than the lowerBound() to indicate inverted scales.

Scale divisions can be calculated from a QwtScaleEngine.

See also: QwtScaleEngine::divideScale(), QwtPlot::setAxisScaleDiv(), QwtAbstractSlider::setScaleDiv()

Definition at line 36 of file qwt_scale_div.h.

Member Enumeration Documentation

enum QwtScaleDiv::TickType

Scale tick types.

Enumerator
NoTick	No ticks.
MinorTick	Minor ticks.
MediumTick	Medium ticks.
MajorTick	Major ticks.
NTickTypes	Number of valid tick types.

Definition at line 40 of file qwt_scale_div.h.

Constructor & Destructor Documentation

QwtScaleDiv::QwtScaleDiv	(	double	lowerBound = `0.0`,
		double	upperBound = `0.0`
	)

explicit

Construct a division without ticks

Parameters

lowerBound	First boundary
upperBound	Second boundary

Note: lowerBound might be greater than upperBound for inverted scales

Definition at line 22 of file qwt_scale_div.cpp.

QwtScaleDiv::QwtScaleDiv	(	const QwtInterval &	interval,
		QList< double >	ticks[NTickTypes]
	)

explicit

Construct a scale division

Parameters

interval	Interval
ticks	List of major, medium and minor ticks

Definition at line 34 of file qwt_scale_div.cpp.

QwtScaleDiv::QwtScaleDiv	(	double	lowerBound,
		double	upperBound,
		QList< double >	ticks[NTickTypes]
	)

explicit

Construct a scale division

Parameters

lowerBound	First boundary
upperBound	Second boundary
ticks	List of major, medium and minor ticks

Note: lowerBound might be greater than upperBound for inverted scales

Definition at line 52 of file qwt_scale_div.cpp.

QwtScaleDiv::QwtScaleDiv	(	double	lowerBound,
		double	upperBound,
		const QList< double > &	minorTicks,
		const QList< double > &	mediumTicks,
		const QList< double > &	majorTicks
	)

explicit

Construct a scale division

Parameters

lowerBound	First boundary
upperBound	Second boundary
minorTicks	List of minor ticks
mediumTicks	List medium ticks
majorTicks	List of major ticks

Note: lowerBound might be greater than upperBound for inverted scales

Definition at line 72 of file qwt_scale_div.cpp.

Member Function Documentation

QwtScaleDiv QwtScaleDiv::bounded	(	double	lowerBound,
		double	upperBound
	)		const

Return a scale division with an interval [lowerBound, upperBound] where all ticks outside this interval are removed

Parameters

lowerBound	Lower bound
upperBound	Upper bound

Returns: Scale division with all ticks inside of the given interval

Note: lowerBound might be greater than upperBound for inverted scales

Definition at line 264 of file qwt_scale_div.cpp.

bool QwtScaleDiv::contains ( double value ) const

Return if a value is between lowerBound() and upperBound()

Parameters

value Value

Returns: true/false

Definition at line 213 of file qwt_scale_div.cpp.

QwtInterval QwtScaleDiv::interval ( ) const

Returns: lowerBound -> upperBound

Definition at line 112 of file qwt_scale_div.cpp.

void QwtScaleDiv::invert ( )

Invert the scale division

See also: inverted()

Definition at line 225 of file qwt_scale_div.cpp.

QwtScaleDiv QwtScaleDiv::inverted ( ) const

Returns: A scale division with inverted boundaries and ticks

See also: invert()

Definition at line 245 of file qwt_scale_div.cpp.

bool QwtScaleDiv::isEmpty ( ) const

Check if the scale division is empty( lowerBound() == upperBound() )

Definition at line 196 of file qwt_scale_div.cpp.

bool QwtScaleDiv::isIncreasing ( ) const

Check if the scale division is increasing( lowerBound() <= upperBound() )

Definition at line 202 of file qwt_scale_div.cpp.

double QwtScaleDiv::lowerBound ( ) const

Returns: First boundary

See also: upperBound()

Definition at line 132 of file qwt_scale_div.cpp.

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

Inequality.

Returns: true if this instance is not equal to other

Definition at line 190 of file qwt_scale_div.cpp.

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

Equality operator.

Returns: true if this instance is equal to other

Definition at line 169 of file qwt_scale_div.cpp.

double QwtScaleDiv::range ( ) const

Returns: upperBound() - lowerBound()

Definition at line 160 of file qwt_scale_div.cpp.

void QwtScaleDiv::setInterval	(	double	lowerBound,
		double	upperBound
	)

Change the interval

Parameters

lowerBound	First boundary
upperBound	Second boundary

Note: lowerBound might be greater than upperBound for inverted scales

Definition at line 92 of file qwt_scale_div.cpp.

void QwtScaleDiv::setInterval ( const QwtInterval & interval )

Change the interval

Parameters

interval Interval

Definition at line 103 of file qwt_scale_div.cpp.

void QwtScaleDiv::setLowerBound ( double lowerBound )

Set the first boundary

Parameters

lowerBound First boundary

See also: lowerBiound(), setUpperBound()

Definition at line 123 of file qwt_scale_div.cpp.

void QwtScaleDiv::setTicks	(	int	type,
		const QList< double > &	ticks
	)

Assign ticks

Parameters

type	MinorTick, MediumTick or MajorTick
ticks	Values of the tick positions

Definition at line 298 of file qwt_scale_div.cpp.

void QwtScaleDiv::setUpperBound ( double upperBound )

Set the second boundary

Parameters

upperBound Second boundary

See also: upperBound(), setLowerBound()

Definition at line 143 of file qwt_scale_div.cpp.

QList< double > QwtScaleDiv::ticks ( int type ) const

Return a list of ticks

Parameters

type	MinorTick, MediumTick or MajorTick

Returns: Tick list

Definition at line 310 of file qwt_scale_div.cpp.

double QwtScaleDiv::upperBound ( ) const

Returns: upper bound

See also: lowerBound()

Definition at line 152 of file qwt_scale_div.cpp.

Member Data Documentation

double QwtScaleDiv::d_lowerBound

private

Definition at line 99 of file qwt_scale_div.h.

QList<double> QwtScaleDiv::d_ticks[NTickTypes]

private

Definition at line 101 of file qwt_scale_div.h.

double QwtScaleDiv::d_upperBound

private

Definition at line 100 of file qwt_scale_div.h.

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

Public Types

Public Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation