QwtScaleDiv Class Reference

#include <qwt_scale_div.h>

List of all members.

Public Types
enum	TickType {   NoTick = -1,   MinorTick,   MediumTick,   MajorTick,   NTickTypes }
Public Member Functions
bool	contains (double v) const
QwtInterval	interval () const
void	invalidate ()
void	invert ()
bool	isValid () const
double	lowerBound () const
bool	operator!= (const QwtScaleDiv &s) const
bool	operator== (const QwtScaleDiv &s) const
	QwtScaleDiv ()
	QwtScaleDiv (const QwtInterval &, QList< double >[NTickTypes])
	QwtScaleDiv (double lowerBound, double upperBound, QList< double >[NTickTypes])
double	range () const
void	setInterval (double lowerBound, double upperBound)
void	setInterval (const QwtInterval &)
void	setTicks (int type, const QList< double > &)
const QList< double > &	ticks (int type) const
double	upperBound () const

---

Detailed Description

A class representing a scale division.

A scale division consists of its limits and 3 list of tick values qualified as major, medium and minor ticks.

In most cases scale divisions are calculated by a QwtScaleEngine.

See also:

subDivideInto(), subDivide()

---

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.

---

Constructor & Destructor Documentation

QwtScaleDiv::QwtScaleDiv

(

)

[explicit]

Construct an invalid QwtScaleDiv instance.

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

Construct QwtScaleDiv instance.

Parameters:

interval	Interval
ticks	List of major, medium and minor ticks

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

Construct QwtScaleDiv instance.

Parameters:

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

---

Member Function Documentation

bool QwtScaleDiv::contains

(

double

value

)

const

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

Parameters:

value

Value

Returns:

true/false

QwtInterval QwtScaleDiv::interval

(

)

const [inline]

Returns:

lowerBound -> upperBound

void QwtScaleDiv::invalidate

(

)

Invalidate the scale division.

void QwtScaleDiv::invert

(

)

Invert the scale divison.

bool QwtScaleDiv::isValid

(

)

const

Check if the scale division is valid.

double QwtScaleDiv::lowerBound

(

)

const [inline]

Returns:

lower bound

See also:

upperBound()

bool QwtScaleDiv::operator!=

(

const QwtScaleDiv &

s

)

const

Inequality.

Returns:

true if this instance is not equal to s

bool QwtScaleDiv::operator==

(

const QwtScaleDiv &

other

)

const

Equality operator.

Returns:

true if this instance is equal to other

double QwtScaleDiv::range

(

)

const [inline]

Returns:

upperBound() - lowerBound()

void QwtScaleDiv::setInterval	(	double	lowerBound,
		double	upperBound
	)		[inline]

Change the interval

Parameters:

lowerBound	lower bound
upperBound	upper bound

void QwtScaleDiv::setInterval

(

const QwtInterval &

interval

)

Change the interval

Parameters:

interval

Interval

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

Assign ticks

Parameters:

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

const QList< double > & QwtScaleDiv::ticks

(

int

type

)

const

Return a list of ticks

Parameters:

type	MinorTick, MediumTick or MajorTick

double QwtScaleDiv::upperBound

(

)

const [inline]

Returns:

upper bound

See also:

lowerBound()