QwtHueColorMap类 参考

QwtHueColorMap varies the hue value of the HSV color model. 更多...

#include <qwt_colormap.h>

类 QwtHueColorMap 继承关系图:

类
class	PrivateData

Public 成员函数
	QwtHueColorMap (QwtColorMap::Format=QwtColorMap::RGB)
	Constructor.
void	setHueInterval (int hue1, int hue2)
	Set the interval for the hue coordinate.
void	setSaturation (int saturation)
	Set the saturation coordinate.
void	setValue (int value)
	Set the value coordinate.
void	setAlpha (int alpha)
	Set the alpha coordinate.
int	hue1 () const
	Return first hue coordinate.
int	hue2 () const
	Return second hue coordinate.
int	saturation () const
	Return saturation coordinate.
int	value () const
	Return value coordinate.
int	alpha () const
	Return alpha coordinate.
virtual QRgb	rgb (double vMin, double vMax, double value) const override
	Map a value of a given interval into a RGB value.
Public 成员函数 继承自 QwtColorMap
	QwtColorMap (Format=QwtColorMap::RGB)
	Constructor.
virtual	~QwtColorMap ()
	Destructor.
void	setFormat (Format)
	Set the format of the color map.
Format	format () const
virtual uint	colorIndex (int numColors, double vMin, double vMax, double value) const
	Map a value of a given interval into a color index.
QColor	color (double vMin, double vMax, double value) const
virtual QVector< QRgb >	colorTable (int numColors) const
	Build and return a color map of arbitrary number of colors.
virtual QVector< QRgb >	colorTable256 () const
	Build and return a color map of 256 colors.

额外继承的成员函数
Public 类型 继承自 QwtColorMap
enum	Format { RGB , Indexed }
	Format for color mapping 更多...

详细描述

QwtHueColorMap varies the hue value of the HSV color model.

QwtHueColorMap can be used to set up a color map easily, that runs cyclic over all colors. Each cycle has 360 different steps. The values for value and saturation are in the range of 0 to 255 and doesn't depend on the data value to be mapped.

参见

QwtSaturationValueColorMap

构造及析构函数说明

QwtHueColorMap()

QwtHueColorMap::QwtHueColorMap ( QwtColorMap::Format  format = QwtColorMap::RGB )

explicit

Constructor.

The hue interval is initialized by 0 to 359. All other coordinates are set to 255.

参数

[in]

format

Format of the color map.

参见

setHueInterval(), setSaturation(), setValue(), setAlpha()

成员函数说明

alpha()

int QwtHueColorMap::alpha

(

)

const

Return alpha coordinate.

返回

Alpha coordinate.

参见

setAlpha()

hue1()

int QwtHueColorMap::hue1

(

)

const

Return first hue coordinate.

返回

First hue coordinate.

参见

setHueInterval()

hue2()

int QwtHueColorMap::hue2

(

)

const

Return second hue coordinate.

返回

Second hue coordinate.

参见

setHueInterval()

rgb()

QRgb QwtHueColorMap::rgb ( double  vMin, double  vMax, double  value  ) const

overridevirtual

Map a value of a given interval into a RGB value.

参数

[in]	vMin	Minimum of the value interval.
[in]	vMax	Maximum of the value interval.
[in]	value	Value to map into a RGB value.

返回

RGB value for value.

实现了 QwtColorMap.

saturation()

int QwtHueColorMap::saturation

(

)

const

Return saturation coordinate.

返回

Saturation coordinate.

参见

setSaturation()

setAlpha()

void QwtHueColorMap::setAlpha

(

int

alpha

)

Set the alpha coordinate.

alpha needs to be in the range 0 to 255, where 255 means opaque and 0 means transparent.

参数

[in]

alpha

Alpha coordinate.

参见

alpha()

setHueInterval()

void QwtHueColorMap::setHueInterval	(	int	hue1,
		int	hue2
	)

Set the interval for the hue coordinate.

hue1/hue2 need to be positive number and can be > 360 to define cycles. F.e. 420 to 240 defines a map yellow/red/magenta/blue.

参数

[in]	hue1	First hue coordinate.
[in]	hue2	Second hue coordinate.

参见

hue1(), hue2()

setSaturation()

void QwtHueColorMap::setSaturation

(

int

saturation

)

Set the saturation coordinate.

saturation needs to be in the range 0 to 255.

参数

[in]

saturation

Saturation coordinate.

参见

saturation()

setValue()

void QwtHueColorMap::setValue

(

int

value

)

Set the value coordinate.

value needs to be in the range 0 to 255.

参数

[in]

value

Value coordinate.

参见

value()

value()

int QwtHueColorMap::value

(

)

const

Return value coordinate.

返回

Value coordinate.

参见

setValue()

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/core/qwt_colormap.h
• /home/runner/work/QWT/QWT/src/core/qwt_colormap.cpp