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

#include <qwt_color_map.h>

Inheritance diagram for QwtHueColorMap:

Classes
class	PrivateData

Public Member Functions
int	alpha () const

int	hue1 () const

int	hue2 () const

	QwtHueColorMap (QwtColorMap::Format=QwtColorMap::RGB)
	Constructor. More...

virtual QRgb	rgb (const QwtInterval &, double value) const

int	saturation () const

void	setAlpha (int alpha)
	Set the the alpha coordinate. More...

void	setHueInterval (int hue1, int hue2)

void	setSaturation (int saturation)
	Set the the saturation coordinate. More...

void	setValue (int value)
	Set the the value coordinate. More...

int	value () const

virtual	~QwtHueColorMap ()
	Destructor. More...

Public Member Functions inherited from QwtColorMap
QColor	color (const QwtInterval &, double value) const

virtual uint	colorIndex (int numColors, const QwtInterval &interval, double value) const
	Map a value of a given interval into a color index. More...

virtual QVector< QRgb >	colorTable (int numColors) const

virtual QVector< QRgb >	colorTable256 () const

Format	format () const

	QwtColorMap (Format=QwtColorMap::RGB)

void	setFormat (Format)

virtual	~QwtColorMap ()
	Destructor. More...

Private Attributes
PrivateData *	d_data

Additional Inherited Members
Public Types inherited from QwtColorMap
enum	Format { RGB, Indexed }

Detailed Description

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.

See also: QwtSaturationValueColorMap

Definition at line 173 of file qwt_color_map.h.

Constructor & Destructor Documentation

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.

Parameters

format Format of the color map

See also: setHueInterval(), setSaturation(), setValue(), setValue()

Definition at line 768 of file qwt_color_map.cpp.

QwtHueColorMap::~QwtHueColorMap ( )

virtual

Destructor.

Definition at line 775 of file qwt_color_map.cpp.

Member Function Documentation

int QwtHueColorMap::alpha ( ) const

Returns: Alpha coordinate

See also: setAlpha()

Definition at line 901 of file qwt_color_map.cpp.

int QwtHueColorMap::hue1 ( ) const

Returns: First hue coordinate

See also: setHueInterval()

Definition at line 865 of file qwt_color_map.cpp.

int QwtHueColorMap::hue2 ( ) const

Returns: Second hue coordinate

See also: setHueInterval()

Definition at line 874 of file qwt_color_map.cpp.

QRgb QwtHueColorMap::rgb	(	const QwtInterval &	interval,
		double	value
	)		const

virtual

Map a value of a given interval into a RGB value

Parameters

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

Returns: RGB value for value

Implements QwtColorMap.

Definition at line 914 of file qwt_color_map.cpp.

int QwtHueColorMap::saturation ( ) const

Returns: Saturation coordinate

See also: setSaturation()

Definition at line 883 of file qwt_color_map.cpp.

void QwtHueColorMap::setAlpha ( int alpha )

Set the the alpha coordinate.

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

Parameters

alpha Alpha coordinate

See also: alpha()

Definition at line 850 of file qwt_color_map.cpp.

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.

Parameters

hue1	First hue coordinate
hue2	Second hue coordinate

See also: hue1(), hue2()

Definition at line 791 of file qwt_color_map.cpp.

void QwtHueColorMap::setSaturation ( int saturation )

Set the the saturation coordinate.

saturation needs to be in the range 0 to 255,

Parameters

saturation Saturation coordinate

See also: saturation()

Definition at line 809 of file qwt_color_map.cpp.

void QwtHueColorMap::setValue ( int value )

Set the the value coordinate.

value needs to be in the range 0 to 255,

Parameters

value Value coordinate

See also: value()

Definition at line 829 of file qwt_color_map.cpp.

int QwtHueColorMap::value ( ) const

Returns: Value coordinate

See also: setValue()

Definition at line 892 of file qwt_color_map.cpp.

Member Data Documentation

PrivateData* QwtHueColorMap::d_data

private

Definition at line 193 of file qwt_color_map.h.

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

Classes

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation