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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