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QwtScaleDiv(3) Qwt User's Guide QwtScaleDiv(3)

NAME

QwtScaleDiv -

SYNOPSIS

#include <qwt_scale_div.h>

Public Types


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

Public Member Functions


QwtScaleDiv ()
QwtScaleDiv (const QwtDoubleInterval &, QwtValueList[NTickTypes])
QwtScaleDiv (double lowerBound, double upperBound, QwtValueList[NTickTypes])
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
double range () const
void setInterval (double lowerBound, double upperBound)
void setInterval (const QwtDoubleInterval &)
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()

Constructor & Destructor Documentation

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

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 (doublelowerBound, doubleupperBound) [inline]

Change the interval

Parameters:

lowerBound lower bound
upperBound upper bound

void QwtScaleDiv::setInterval (const QwtDoubleInterval &interval)

Change the interval

Parameters:

interval Interval

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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Tue Nov 20 2012 Version 5.2.3