CGAL::Color Class Reference

#include <CGAL/IO/Color.h>

Definition

An object of the class Color is a color available for drawing operations in many CGAL output streams.

Each color is defined by a triple of unsigned chars (r,g,b) with 0 \(\le\) r,g,b \( \le \) 255, the so-called rgb-value of the color.

See also

CGAL::Geomview_stream

Creation
	Color ()
	creates a color with rgb-value (0,0,0), i.e. black. More...
	Color (unsigned char red, unsigned char green, unsigned char blue)
	creates a color with rgb-value (red,green,blue). More...

Operations
bool	operator== (const Color &q) const
	Test for equality: Two colors are equal, iff their rgb-values are equal. More...
bool	operator!= (const Color &q) const
	Test for inequality. More...
unsigned char	red () const
	returns the red component of c. More...
unsigned char	green () const
	returns the green component of c. More...
unsigned char	blue () const
	returns the blue component of c. More...

Constants
The following constants are predefined:
const Color	BLACK = Color(0, 0, 0)
	Black. More...
const Color	WHITE = Color(255, 255, 255)
	White. More...
const Color	RED = Color(255, 0, 0)
	Red. More...
const Color	GREEN = Color(0, 255, 0)
	Green. More...
const Color	BLUE = Color(0, 0, 255)
	Blue. More...
const Color	VIOLET = Color(255, 0, 255)
	Violet. More...
const Color	ORANGE = Color(255, 170, 0)
	Orange. More...

Constructor & Destructor Documentation

CGAL::Color::Color

(

)

creates a color with rgb-value (0,0,0), i.e. black.

CGAL::Color::Color	(	unsigned char	red,
		unsigned char	green,
		unsigned char	blue
	)

creates a color with rgb-value (red,green,blue).

Member Function Documentation

unsigned char CGAL::Color::blue

(

)

const

returns the blue component of c.

unsigned char CGAL::Color::green

(

)

const

returns the green component of c.

bool CGAL::Color::operator!=

(

const Color &

q

)

const

Test for inequality.

bool CGAL::Color::operator==

(

const Color &

q

)

const

Test for equality: Two colors are equal, iff their rgb-values are equal.

unsigned char CGAL::Color::red

(

)

const

returns the red component of c.

Member Data Documentation

const Color CGAL::Color::BLACK = Color(0, 0, 0)

Black.

const Color CGAL::Color::BLUE = Color(0, 0, 255)

Blue.

const Color CGAL::Color::GREEN = Color(0, 255, 0)

Green.

const Color CGAL::Color::ORANGE = Color(255, 170, 0)

Orange.

const Color CGAL::Color::RED = Color(255, 0, 0)

Red.

const Color CGAL::Color::VIOLET = Color(255, 0, 255)

Violet.

const Color CGAL::Color::WHITE = Color(255, 255, 255)

White.