QwtScaleDiv man page

QwtScaleDiv —

A class representing a scale division.

Synopsis

#include <qwt_scale_div.h>

Public Types

enum TickType { NoTick = -1, MinorTick, MediumTick, MajorTick, NTickTypes }

Public Member Functions

bool contains (double v) const

QwtDoubleInterval interval () const

void invalidate ()

void invert ()

bool isValid () const

double lowerBound () const

int operator!= (const QwtScaleDiv &s) const

int operator== (const QwtScaleDiv &s) const

QwtScaleDiv ()

QwtScaleDiv (double lowerBound, double upperBound, QwtValueList[NTickTypes])

QwtScaleDiv (const QwtDoubleInterval &, QwtValueList[NTickTypes])

double range () const

void setInterval (const QwtDoubleInterval &)

void setInterval (double lowerBound, double upperBound)

void setTicks (int type, const QwtValueList &)

const QwtValueList & 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.

Constructor & Destructor Documentation

QwtScaleDiv::QwtScaleDiv () [explicit]

Construct an invalid QwtScaleDiv instance.

QwtScaleDiv::QwtScaleDiv (const QwtDoubleInterval &interval, QwtValueListticks[NTickTypes]) [explicit] Construct QwtScaleDiv instance.

Parameters:

interval Interval
ticks List of major, medium and minor ticks

QwtScaleDiv::QwtScaleDiv (doublelowerBound, doubleupperBound, QwtValueListticks[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 (doublevalue) const Return if a value is between lowerBound() and upperBound()

Parameters:

value Value

Returns:

true/false

QwtDoubleInterval 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()

int QwtScaleDiv::operator!= (const QwtScaleDiv &s) const

Inequality. Returns:

true if this instance is not equal to s

int 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 (const QwtDoubleInterval &interval) Change the interval

Parameters:

interval Interval

void QwtScaleDiv::setInterval (doublelowerBound, doubleupperBound) [inline] Change the interval

Parameters:

lowerBound lower bound
upperBound upper bound

void QwtScaleDiv::setTicks (inttype, const QwtValueList &ticks) Assign ticks

Parameters:

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

const QwtValueList & QwtScaleDiv::ticks (inttype) const Return a list of ticks

Parameters:

type MinorTick, MediumTick or MajorTick

double QwtScaleDiv::upperBound () const [inline] Returns

upper bound

See also:

lowerBound()

Author

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Info

Mon Aug 1 2011 Version 5.2.2 Qwt User's Guide