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

#include <qwt_color_map.h>

Inheritance diagram for QwtLinearColorMap:

Classes
class	ColorStops

class	PrivateData

Public Types
enum	Mode { FixedColors , ScaledColors }
	Mode of color map. More...

Public Types inherited from QwtColorMap
enum	Format { RGB , Indexed }
	Format for color mapping. More...

Public Member Functions
	QwtLinearColorMap (QwtColorMap::Format=QwtColorMap::RGB)
	Build a color map with two stops at 0.0 and 1.0.

	QwtLinearColorMap (const QColor &from, const QColor &to, QwtColorMap::Format=QwtColorMap::RGB)
	Build a color map with two stops at 0.0 and 1.0.

virtual	~QwtLinearColorMap ()
	Destructor.

void	setMode (Mode)
	Set the mode of the color map.

Mode	mode () const
	Return the mode of the color map.

void	setColorInterval (const QColor &color1, const QColor &color2)
	Set the color range.

void	addColorStop (double value, const QColor &)
	Add a color stop.

QVector< double >	stopPos () const
	Return positions of color stops in increasing order.

QVector< QColor >	stopColors () const
	Return the colors of the color stops.

QColor	color1 () const
	Return the first color of the color range.

QColor	color2 () const
	Return the second color of the color range.

virtual QRgb	rgb (const QwtInterval &, double value) const override
	Map a value of a given interval into a RGB value.

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

Public Member Functions inherited from QwtColorMap
	QwtColorMap (Format=QwtColorMap::RGB)
	Constructor.

virtual	~QwtColorMap ()
	Destructor.

void	setFormat (Format)
	Set the format of the color map.

Format	format () const

QColor	color (const QwtInterval &, 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.

Detailed Description

QwtLinearColorMap builds a color map from color stops.

Member Enumeration Documentation

◆ Mode

enum QwtLinearColorMap::Mode

Mode of color map.

See also: setMode(), mode()

Enumerator
FixedColors	Return the color from the next lower color stop.
ScaledColors	Interpolating the colors of the adjacent stops.

Constructor & Destructor Documentation

◆ QwtLinearColorMap() [1/2]

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

explicit

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

◆ QwtLinearColorMap() [2/2]

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.

Member Function Documentation

◆ addColorStop()

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

Add a color stop.

◆ color1()

QColor QwtLinearColorMap::color1 ( ) const

Return the first color of the color range.

◆ color2()

QColor QwtLinearColorMap::color2 ( ) const

Return the second color of the color range.

◆ colorIndex()

uint QwtLinearColorMap::colorIndex	(	int	numColors,
		const QwtInterval &	interval,
		double	value
	)		const

overridevirtual

Map a value of a given interval into a color index.

Reimplemented from QwtColorMap.

◆ mode()

QwtLinearColorMap::Mode QwtLinearColorMap::mode ( ) const

Return the mode of the color map.

◆ rgb()

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

overridevirtual

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

Implements QwtColorMap.

◆ setColorInterval()

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

Set the color range.

◆ setMode()

void QwtLinearColorMap::setMode ( Mode mode )

Set the mode of the color map.

◆ stopColors()

QVector< QColor > QwtLinearColorMap::stopColors ( ) const

Return the colors of the color stops.

◆ stopPos()

QVector< double > QwtLinearColorMap::stopPos ( ) const

Return positions of color stops in increasing order.

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

/home/runner/work/QWT/QWT/src/plot/qwt_color_map.h
/home/runner/work/QWT/QWT/src/plot/qwt_color_map.cpp

Classes

Public Types

Public Member Functions