A scale engine for reciprocal (1/t) scales. More...

#include <ReciprocalScaleEngine.h>

Inheritance diagram for ReciprocalScaleEngine:

Public Member Functions
virtual void	autoScale (int maxSteps, double &x1, double &x2, double &stepSize) const

virtual QwtScaleDiv	divideScale (double x1, double x2, int numMajorSteps, int numMinorSteps, double stepSize=0.0) const
	Calculate a scale division. More...

virtual QwtScaleTransformation *	transformation () const

Protected Member Functions
QwtDoubleInterval	align (const QwtDoubleInterval &, double stepSize) const
	Align an interval to a step size. More...

Private Member Functions
QwtValueList	buildMajorTicks (const QwtDoubleInterval &interval, double stepSize) const

void	buildMinorTicks (const QwtValueList &majorTicks, int maxMinMark, double step, QwtValueList &, QwtValueList &) const

void	buildTicks (const QwtDoubleInterval &, double stepSize, int maxMinSteps, QwtValueList ticks[QwtScaleDiv::NTickTypes]) const

Detailed Description

A scale engine for reciprocal (1/t) scales.

Member Function Documentation

QwtDoubleInterval ReciprocalScaleEngine::align	(	const QwtDoubleInterval &	interval,
		double	stepSize
	)		const

protected

Align an interval to a step size.

The limits of an interval are aligned that both are integer multiples of the step size.

Parameters

interval	Interval
stepSize	Step size

Returns: Aligned interval

Referenced by autoScale(), and buildTicks().

void ReciprocalScaleEngine::autoScale	(	int	maxNumSteps,
		double &	x1,
		double &	x2,
		double &	stepSize
	)		const

virtual

Align and divide an interval

Parameters

maxNumSteps	Max. number of steps
x1	First limit of the interval (In/Out)
x2	Second limit of the interval (In/Out)
stepSize	Step size (Out)

References align().

QwtValueList ReciprocalScaleEngine::buildMajorTicks	(	const QwtDoubleInterval &	interval,
		double	stepSize
	)		const

private

Referenced by buildTicks().

void ReciprocalScaleEngine::buildMinorTicks	(	const QwtValueList &	majorTicks,
		int	maxMinMark,
		double	step,
		QwtValueList &	minorTicks,
		QwtValueList &	mediumTicks
	)		const

private

Referenced by buildTicks().

void ReciprocalScaleEngine::buildTicks	(	const QwtDoubleInterval &	interval,
		double	stepSize,
		int	maxMinSteps,
		QwtValueList	ticks[QwtScaleDiv::NTickTypes]
	)		const

private

References align(), buildMajorTicks(), and buildMinorTicks().

Referenced by divideScale().

QwtScaleDiv ReciprocalScaleEngine::divideScale	(	double	x1,
		double	x2,
		int	maxMajSteps,
		int	maxMinSteps,
		double	stepSize = `0.0`
	)		const

virtual

Calculate a scale division.

Parameters

x1	First interval limit
x2	Second interval limit
maxMajSteps	Maximum for the number of major steps
maxMinSteps	Maximum number of minor steps
stepSize	Step size. If stepSize == 0, the scaleEngine calculates one.

See Also: QwtScaleEngine::stepSize(), QwtScaleEngine::subDivide()

References buildTicks().

QwtScaleTransformation * ReciprocalScaleEngine::transformation ( ) const

virtual

Return a dummy transformation

The documentation for this class was generated from the following files:

qtiplot/src/plot2D/ReciprocalScaleEngine.h
qtiplot/src/plot2D/ReciprocalScaleEngine.cpp

Public Member Functions

Protected Member Functions

Private Member Functions

Detailed Description

Member Function Documentation