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Color Class Reference

Defines an RGB color. More...

List of all members.

Public Methods
	Color ()
	Color (double r, double g, double b)
	Color (COLORREF color)
void	setColor (double r, double g, double b)
double &	operator[] (COLOR col)
double	operator[] (COLOR col) const
Color &	operator= (const Color &color)
Color &	operator+= (const Color &color)
Color &	operator-= (const Color &color)
Color	operator+ (const Color &color) const
Color	operator- (const Color &color) const
Color	operator- () const
Color &	operator *= (double d)
Color &	operator/= (double d)
Color	operator * (double d) const
Color	operator/ (double d) const
bool	operator== (const Color &color) const
double	abs () const
void	setRandomColor ()

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Detailed Description

Defines an RGB color.

Every component is a double at the range [0.0, 1.0]. After each operation an overflow check is made for every component, and if necessary, the component is updated. For example, if the R component is larger than 1.0, it will be updated to 1.0; if smaller than 0.0, it will be updated to 0.0

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Constructor & Destructor Documentation

Color::Color (    )

Default constructor. Initializes the color to black (0, 0, 0).

Color::Color (  double    r, double    g, double    b )

Constructor. Initializes the color to (r, g, b). Parameters: r  The red component g  The green component b  The blue component

Color::Color (  COLORREF    color )

Constructor. Initializes the color according to the given color. Parameters: color  A color

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Member Function Documentation

double Color::abs (    )  const

Returns the absolute value of the color, i.e. sqrt(r*r+g*g+b*b) Returns: The absolute value

Color Color::operator * (  double    d )  const

Multiplies every color component by d, returns a new Color object. Parameters: d  The parameter to multiply by Returns: A new Color object with the result

Color& Color::operator *= (  double    d )

Multiplies every color component by d. Parameters: d  The parameter to multiply by Returns: A reference to this object

Color Color::operator+ (  const Color &    color )  const

Returns the sum of current color and color. Parameters: color  The color to add Returns: A new Color object with the result

Color& Color::operator+= (  const Color &    color )

Adds color to current color. Parameters: color  The color to add Returns: A reference to this object

Color Color::operator- (    )  const

Returns the current color multiplied by -1. Returns: A new Color object with the result

Color Color::operator- (  const Color &    color )  const

Subtracts color from current color, returns a new Color object. Parameters: color  The color to subtract Returns: A new Color object with the result

Color& Color::operator-= (  const Color &    color )

Subtracts color to current color. Parameters: color  The color to subtract Returns: A reference to this object

Color Color::operator/ (  double    d )  const

Divides every color component by d, returns a new Color object. Parameters: d  The parameter to divide by Returns: A new Color object with the result

Color& Color::operator/= (  double    d )

Divides every color component by d. Parameters: d  The parameter to divide by Returns: A reference to this object

Color& Color::operator= (  const Color &    color )

Sets the current color according to the given color. Parameters: color  The color to copy Returns: A reference to this object

bool Color::operator== (  const Color &    color )  const

Compares 2 colors and returns true if they are the same. Parameters: color  The color to compare to Return values: true  The 2 colors are the same false  The colors are different

double Color::operator[] (  COLOR    col )  const

Returns the R/G/B value (depends on col). Parameters: col  Specifies the R/G/B component Returns: The current R/G/B value

double& Color::operator[] (  COLOR    col )

Returns the R/G/B value (depends on col). Parameters: col  Specifies the R/G/B component Returns: The current R/G/B value

void Color::setColor (  double    r, double    g, double    b )

Set the color components. Parameters: r  The red component g  The green component b  The blue component

void Color::setRandomColor (    )

Sets a random color.

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

• color.h

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MeshMaker 5.2 Manual
This software library was written by Roni Raab, ronir@cs.technion.ac.il.
Last updated on May 2003.
This software is for academic and research use only.