Referencia de la Clase QwtScaleMap

A scale map. Más...

#include <qwt_scale_map.h>

Lista de todos los miembros.

Métodos públicos
	QwtScaleMap ()
	Constructor.
	QwtScaleMap (const QwtScaleMap &)
	~QwtScaleMap ()
QwtScaleMap &	operator= (const QwtScaleMap &)
void	setTransformation (QwtScaleTransformation *)
const QwtScaleTransformation *	transformation () const
	Get the transformation.
void	setPaintInterval (int p1, int p2)
	Specify the borders of the paint device interval.
void	setPaintXInterval (double p1, double p2)
	Specify the borders of the paint device interval.
void	setScaleInterval (double s1, double s2)
	Specify the borders of the scale interval.
int	transform (double x) const
double	invTransform (double i) const
	Transform an paint device value into a value in the interval of the scale.
double	xTransform (double x) const
double	p1 () const
double	p2 () const
double	s1 () const
double	s2 () const
double	pDist () const
double	sDist () const
Atributos públicos
QT_STATIC_CONST double	LogMin = 1.0e-150
QT_STATIC_CONST double	LogMax = 1.0e150

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Descripción detallada

A scale map.

QwtScaleMap offers transformations from a scale into a paint interval and vice versa.

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Documentación del constructor y destructor

QwtScaleMap::QwtScaleMap

(

)

Constructor.

The scale and paint device intervals are both set to [0,1].

QwtScaleMap::QwtScaleMap

(

const QwtScaleMap &

other

)

QwtScaleMap::~QwtScaleMap

(

)

Destructor

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Documentación de las funciones miembro

double QwtScaleMap::invTransform

(

double

i

)

const [inline]

Transform an paint device value into a value in the interval of the scale.

QwtScaleMap & QwtScaleMap::operator=

(

const QwtScaleMap &

other

)

double QwtScaleMap::p1

(

)

const [inline]

Devuelve:

First border of the paint interval

double QwtScaleMap::p2

(

)

const [inline]

Devuelve:

Second border of the paint interval

double QwtScaleMap::pDist

(

)

const [inline]

double QwtScaleMap::s1

(

)

const [inline]

Devuelve:

First border of the scale interval

double QwtScaleMap::s2

(

)

const [inline]

Devuelve:

Second border of the scale interval

double QwtScaleMap::sDist

(

)

const [inline]

void QwtScaleMap::setPaintInterval	(	int	p1,
		int	p2
	)

Specify the borders of the paint device interval.

Parámetros:

p1	first border
p2	second border

void QwtScaleMap::setPaintXInterval	(	double	p1,
		double	p2
	)

Specify the borders of the paint device interval.

Parámetros:

p1	first border
p2	second border

void QwtScaleMap::setScaleInterval	(	double	s1,
		double	s2
	)

Specify the borders of the scale interval.

Parámetros:

s1	first border
s2	second border

Atención:

logarithmic scales might be aligned to [LogMin, LogMax]

void QwtScaleMap::setTransformation

(

QwtScaleTransformation *

transformation

)

Initialize the map with a transformation

int QwtScaleMap::transform

(

double

s

)

const [inline]

Transform a point related to the scale interval into an point related to the interval of the paint device and round it to an integer. (In Qt <= 3.x paint devices are integer based. )

Ver también:

QwtScaleMap::xTransform

const QwtScaleTransformation * QwtScaleMap::transformation

(

)

const

Get the transformation.

double QwtScaleMap::xTransform

(

double

s

)

const [inline]

Transform a point related to the scale interval into an point related to the interval of the paint device

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Documentación de los datos miembro

QT_STATIC_CONST_IMPL double QwtScaleMap::LogMax = 1.0e150

QT_STATIC_CONST_IMPL double QwtScaleMap::LogMin = 1.0e-150

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

• src/qwt/src/qwt_scale_map.h
• src/qwt/src/qwt_scale_map.cpp