QwtScaleDiv - Man Page

A class representing a scale division.

Synopsis

#include <qwt_scale_div.h>

Public Types

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

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)
bool operator== (const QwtScaleDiv &) const
Equality operator.
bool operator!= (const QwtScaleDiv &) const
Inequality.
void setInterval (double lowerBound, double upperBound)
void setInterval (const QwtInterval &)
QwtInterval interval () const
void setLowerBound (double)
double lowerBound () const
void setUpperBound (double)
double upperBound () const
double range () const
bool contains (double value) const
void setTicks (int tickType, const QList< double > &)
QList< double > ticks (int tickType) const
bool isEmpty () const
Check if the scale division is empty( lowerBound() == upperBound() )
bool isIncreasing () const
Check if the scale division is increasing( lowerBound() <= upperBound() )
void invert ()
QwtScaleDiv inverted () const
QwtScaleDiv bounded (double lowerBound, double upperBound) const

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 33 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 37 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 21 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 33 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 51 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 71 of file qwt_scale_div.cpp.