A scale engine for linear scales. Más...

Diagrama de herencias de QwtLinearScaleEngine

Métodos públicos
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.
virtual QwtScaleTransformation *	transformation () const
Métodos protegidos
QwtDoubleInterval	align (const QwtDoubleInterval &, double stepSize) const
	Align an interval to a step size.

Descripción detallada

A scale engine for linear scales.

The step size will fit into the pattern $\left\{ 1,2,5\right\} \cdot 10^{n}$ , where n is an integer.

Documentación de las funciones miembro

QwtDoubleInterval QwtLinearScaleEngine::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.

Parámetros:

interval	Interval
stepSize	Step size

void QwtLinearScaleEngine::autoScale	(	int	maxNumSteps,
		double &	x1,
		double &	x2,
		double &	stepSize
	)		const `[virtual]`

Align and divide an interval

Parámetros:

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)

QwtScaleDiv QwtLinearScaleEngine::divideScale	(	double	x1,
		double	x2,
		int	maxMajSteps,
		int	maxMinSteps,
		double	stepSize = `0.0`
	)		const `[virtual]`

Calculate a scale division.

Parámetros:

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.

QwtScaleTransformation * QwtLinearScaleEngine::transformation ( ) const [virtual]

Return a transformation, for linear scales

La documentación para esta clase fue generada a partir de los siguientes ficheros: