Referencia de la Clase QwtLinearColorMap

QwtLinearColorMap builds a color map from color stops. Más...

#include <qwt_color_map.h>

Diagrama de herencias de QwtLinearColorMap

Lista de todos los miembros.

Clases
class	ColorStops
class	PrivateData
Tipos públicos
enum	Mode { FixedColors, ScaledColors }
Métodos públicos
	QwtLinearColorMap (QwtColorMap::Format=QwtColorMap::RGB)
	QwtLinearColorMap (const QColor &from, const QColor &to, QwtColorMap::Format=QwtColorMap::RGB)
	QwtLinearColorMap (const QwtLinearColorMap &)
	Copy constructor.
virtual	~QwtLinearColorMap ()
	Destructor.
QwtLinearColorMap &	operator= (const QwtLinearColorMap &)
	Assignment operator.
virtual QwtColorMap *	copy () const
	Clone the color map.
void	setMode (Mode)
	Set the mode of the color map.
Mode	mode () const
void	setColorInterval (const QColor &color1, const QColor &color2)
void	addColorStop (double value, const QColor &)
QwtArray< double >	colorStops () const
QColor	color1 () const
QColor	color2 () const
virtual QRgb	rgb (const QwtDoubleInterval &, double value) const
virtual unsigned char	colorIndex (const QwtDoubleInterval &, double value) const

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Descripción detallada

QwtLinearColorMap builds a color map from color stops.

A color stop is a color at a specific position. The valid range for the positions is [0.0, 1.0]. When mapping a value into a color it is translated into this interval. If mode() == FixedColors the color is calculated from the next lower color stop. If mode() == ScaledColors the color is calculated by interpolating the colors of the adjacent stops.

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Documentación de las enumeraciones miembro de la clase

enum QwtLinearColorMap::Mode

Mode of color map

Ver también:

setMode(), mode()

Valores de enumeraciones:

FixedColors
ScaledColors

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Documentación del constructor y destructor

QwtLinearColorMap::QwtLinearColorMap

(

QwtColorMap::Format

format = QwtColorMap::RGB

)

Build a color map with two stops at 0.0 and 1.0. The color at 0.0 is Qt::blue, at 1.0 it is Qt::yellow.

Parámetros:

format

Preferred format of the color map

QwtLinearColorMap::QwtLinearColorMap	(	const QColor &	color1,
		const QColor &	color2,
		QwtColorMap::Format	format = QwtColorMap::RGB
	)

Build a color map with two stops at 0.0 and 1.0.

Parámetros:

color1	Color used for the minimum value of the value interval
color2	Color used for the maximum value of the value interval
format	Preferred format of the coor map

QwtLinearColorMap::QwtLinearColorMap

(

const QwtLinearColorMap &

other

)

Copy constructor.

QwtLinearColorMap::~QwtLinearColorMap

(

)

[virtual]

Destructor.

---

Documentación de las funciones miembro

void QwtLinearColorMap::addColorStop	(	double	value,
		const QColor &	color
	)

Add a color stop

The value has to be in the range [0.0, 1.0]. F.e. a stop at position 17.0 for a range [10.0,20.0] must be passed as: (17.0 - 10.0) / (20.0 - 10.0)

Parámetros:

value	Value between [0.0, 1.0]
color	Color stop

QColor QwtLinearColorMap::color1

(

)

const

Devuelve:

the first color of the color range

Ver también:

setColorInterval()

QColor QwtLinearColorMap::color2

(

)

const

Devuelve:

the second color of the color range

Ver también:

setColorInterval()

unsigned char QwtLinearColorMap::colorIndex	(	const QwtDoubleInterval &	interval,
		double	value
	)		const [virtual]

Map a value of a given interval into a color index, between 0 and 255

Parámetros:

interval	Range for all values
value	Value to map into a color index

Implementa QwtColorMap.

QwtArray< double > QwtLinearColorMap::colorStops

(

)

const

Return all positions of color stops in increasing order

QwtColorMap * QwtLinearColorMap::copy

(

)

const [virtual]

Clone the color map.

Implementa QwtColorMap.

QwtLinearColorMap::Mode QwtLinearColorMap::mode

(

)

const

Devuelve:

Mode of the color map

Ver también:

setMode()

QwtLinearColorMap & QwtLinearColorMap::operator=

(

const QwtLinearColorMap &

other

)

Assignment operator.

QRgb QwtLinearColorMap::rgb	(	const QwtDoubleInterval &	interval,
		double	value
	)		const [virtual]

Map a value of a given interval into a rgb value

Parámetros:

interval	Range for all values
value	Value to map into a rgb value

Implementa QwtColorMap.

void QwtLinearColorMap::setColorInterval	(	const QColor &	color1,
		const QColor &	color2
	)

Set the color range

Add stops at 0.0 and 1.0.

Parámetros:

color1	Color used for the minimum value of the value interval
color2	Color used for the maximum value of the value interval

Ver también:

color1(), color2()

void QwtLinearColorMap::setMode

(

Mode

mode

)

Set the mode of the color map.

FixedColors means the color is calculated from the next lower color stop. ScaledColors means the color is calculated by interpolating the colors of the adjacent stops.

Ver también:

mode()

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

• src/qwt/src/qwt_color_map.h
• src/qwt/src/qwt_color_map.cpp