Palette Class Reference

Palette with array of colors. More...

#include <palette.h>

Inheritance diagram for Palette:

Public Member Functions
	Palette ()
	Create an empty palette.
	Palette (const AnalyticPalette &, int=16)
	Create a palette from an analytic palette.
	Palette (const QVector< QColor > &)
	Create a palette.
	Palette (const QVector< Color > &)
	Create a palette.
	Palette (const QVector< Color > &, const QVector< double > &)
	Create a palette.
	Palette (const Color &, const Color &, const Color &, const double &=0.5)
	Create a diverging palette.
	Palette (const QImage &)
	Create a palette from an image.
Palette	Reverse () const
	Reverse the enrties of the palette.
void	ScaleTo (const double &=0.0, const double &=1.0)
	Scale the range of values of the palette so that it lies in the prescribed interval.
Color	GetColor (double) const
	Compute a color in the palette.
void	Saturate (const double &)
	Saturate all colors of the palette.
void	Brighten (const double &)
	Brighten all colors of the palette.
Public Member Functions inherited from GenericPalette
virtual QImage	Draw (int=32, int=1024) const
	Draws an image with the colors of the palette.
virtual QImage	CreateImage (int, int=16, bool=false) const
	Create an image form a palette.

Protected Attributes
QVector< Color >	c
	Array of colors.
QVector< double >	a
	Anchors.
int	type = 0
	Type, used to speed-up queries.

Detailed Description

Palette with array of colors.

Constructor & Destructor Documentation

Palette() [1/6]

Palette::Palette	(	const AnalyticPalette &	p,
		int	n = 16 )

Create a palette from an analytic palette.

Parameters

p	Analytic palette.
n	Sampling.

Palette() [2/6]

Palette::Palette

(

const QVector< QColor > &

qtc

)

Create a palette.

This constructeur allows to create a simple color ramp easily:

Palette palette({ Color(0.5),Color(1.0) }); // Grey to white

Parameters

qtc	Set of evenly distributed Qt colors points.

Palette() [3/6]

Palette::Palette

(

const QVector< Color > &

c

)

Create a palette.

Parameters

c	Set of evenly distributed colors points.

Palette() [4/6]

Palette::Palette	(	const QVector< Color > &	c,
		const QVector< double > &	a )

Create a palette.

Parameters

c	Array of colors.
a	Array of indices.

Palette() [5/6]

Palette::Palette	(	const Color &	ca,
		const Color &	cb,
		const Color &	cc,
		const double &	ab = 0.5 )

Create a diverging palette.

Parameters

ca,cb,cc	End colors and diverging color.
ab	Diverging entry.

Palette() [6/6]

Palette::Palette

(

const QImage &

image

)

Create a palette from an image.

The function chekcs the larger dimension of the image, and scans it accordingly.

Parameters

image

Input palette colors.

Member Function Documentation

Brighten()

void Palette::Brighten

(

const double &

x

)

Brighten all colors of the palette.

Parameters

x	Coefficient.

GetColor()

Color Palette::GetColor ( double t ) const

virtual

Compute a color in the palette.

Parameters

t	Interpolation parameter.

Reimplemented from GenericPalette.

Saturate()

void Palette::Saturate

(

const double &

x

)

Saturate all colors of the palette.

Parameters

x	Coefficient.

ScaleTo()

void Palette::ScaleTo	(	const double &	x = 0.0,
		const double &	y = 1.0 )

Scale the range of values of the palette so that it lies in the prescribed interval.

Parameters

x,y

Interval.