This class allows the definition of an RGB color as triplet of 3 normalized floating point values (red, green, blue). More...

#include <Quantity_Color.hxx>

Public Member Functions
	Quantity_Color ()
	Creates Quantity_NOC_YELLOW color (for historical reasons). More...

	Quantity_Color (const Quantity_NameOfColor theName)
	Creates the color from enumeration value. More...

	Quantity_Color (const Standard_Real theC1, const Standard_Real theC2, const Standard_Real theC3, const Quantity_TypeOfColor theType)
	Creates a color according to the definition system theType. Throws exception if values are out of range. More...

	Quantity_Color (const NCollection_Vec3< float > &theRgb)
	Define color from linear RGB values. More...

Quantity_NameOfColor	Name () const
	Returns the name of the nearest color from the Quantity_NameOfColor enumeration. More...

void	SetValues (const Quantity_NameOfColor theName)
	Updates the color from specified named color. More...

const NCollection_Vec3< float > &	Rgb () const
	Return the color as vector of 3 float elements. More...

	operator const NCollection_Vec3< float > & () const
	Return the color as vector of 3 float elements. More...

void	Values (Standard_Real &theC1, Standard_Real &theC2, Standard_Real &theC3, const Quantity_TypeOfColor theType) const
	Returns in theC1, theC2 and theC3 the components of this color according to the color system definition theType. More...

void	SetValues (const Standard_Real theC1, const Standard_Real theC2, const Standard_Real theC3, const Quantity_TypeOfColor theType)
	Updates a color according to the mode specified by theType. Throws exception if values are out of range. More...

Standard_Real	Red () const
	Returns the Red component (quantity of red) of the color within range [0.0; 1.0]. More...

Standard_Real	Green () const
	Returns the Green component (quantity of green) of the color within range [0.0; 1.0]. More...

Standard_Real	Blue () const
	Returns the Blue component (quantity of blue) of the color within range [0.0; 1.0]. More...

Standard_Real	Hue () const
	Returns the Hue component (hue angle) of the color in degrees within range [0.0; 360.0], 0.0 being Red. -1.0 is a special value reserved for grayscale color (S should be 0.0) More...

Standard_Real	Light () const
	Returns the Light component (value of the lightness) of the color within range [0.0; 1.0]. More...

void	ChangeIntensity (const Standard_Real theDelta)
	Increases or decreases the intensity (variation of the lightness). The delta is a percentage. Any value greater than zero will increase the intensity. The variation is expressed as a percentage of the current value. More...

Standard_Real	Saturation () const
	Returns the Saturation component (value of the saturation) of the color within range [0.0; 1.0]. More...

void	ChangeContrast (const Standard_Real theDelta)
	Increases or decreases the contrast (variation of the saturation). The delta is a percentage. Any value greater than zero will increase the contrast. The variation is expressed as a percentage of the current value. More...

Standard_Boolean	IsDifferent (const Quantity_Color &theOther) const
	Returns TRUE if the distance between two colors is greater than Epsilon(). More...

Standard_Boolean	operator!= (const Quantity_Color &theOther) const
	Alias to IsDifferent(). More...

Standard_Boolean	IsEqual (const Quantity_Color &theOther) const
	Returns TRUE if the distance between two colors is no greater than Epsilon(). More...

Standard_Boolean	operator== (const Quantity_Color &theOther) const
	Alias to IsEqual(). More...

Standard_Real	Distance (const Quantity_Color &theColor) const
	Returns the distance between two colors. It's a value between 0 and the square root of 3 (the black/white distance). More...

Standard_Real	SquareDistance (const Quantity_Color &theColor) const
	Returns the square of distance between two colors. More...

void	Delta (const Quantity_Color &theColor, Standard_Real &DC, Standard_Real &DI) const
	Returns the percentage change of contrast and intensity between this and another color. <DC> and <DI> are percentages, either positive or negative. The calculation is with respect to this color. If <DC> is positive then <me> is more contrasty. If <DI> is positive then <me> is more intense. More...

Standard_Real	DeltaE2000 (const Quantity_Color &theOther) const
	Returns the value of the perceptual difference between this color and `theOther`, computed using the CIEDE2000 formula. The difference is in range [0, 100.], with 1 approximately corresponding to the minimal percievable difference (usually difference 5 or greater is needed for the difference to be recognizable in practice). More...

Static Public Member Functions
static Quantity_NameOfColor	Name (const Standard_Real theR, const Standard_Real theG, const Standard_Real theB)
	Returns the color from Quantity_NameOfColor enumeration nearest to specified RGB values. More...

static Standard_CString	StringName (const Quantity_NameOfColor theColor)
	Returns the name of the color identified by the given Quantity_NameOfColor enumeration value. More...

static Standard_Boolean	ColorFromName (const Standard_CString theName, Quantity_NameOfColor &theColor)
	Finds color from predefined names. For example, the name of the color which corresponds to "BLACK" is Quantity_NOC_BLACK. Returns FALSE if name is unknown. More...

static Standard_Boolean	ColorFromName (const Standard_CString theColorNameString, Quantity_Color &theColor)
	Finds color from predefined names. More...

Routines converting colors between different encodings and color spaces
void	DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const
	Dumps the content of me into the stream. More...

Standard_Boolean	InitFromJson (const Standard_SStream &theSStream, Standard_Integer &theStreamPos)
	Inits the content of me from the stream. More...

static bool	ColorFromHex (const Standard_CString theHexColorString, Quantity_Color &theColor)
	Parses the string as a hex color (like "#FF0" for short sRGB color, or "#FFFF00" for sRGB color) More...

static TCollection_AsciiString	ColorToHex (const Quantity_Color &theColor, const bool theToPrefixHash=true)
	Returns hex sRGB string in format "#FFAAFF". More...

static NCollection_Vec3< float >	Convert_sRGB_To_HLS (const NCollection_Vec3< float > &theRgb)
	Converts sRGB components into HLS ones. More...

static NCollection_Vec3< float >	Convert_HLS_To_sRGB (const NCollection_Vec3< float > &theHls)
	Converts HLS components into RGB ones. More...

static NCollection_Vec3< float >	Convert_LinearRGB_To_HLS (const NCollection_Vec3< float > &theRgb)
	Converts Linear RGB components into HLS ones. More...

static NCollection_Vec3< float >	Convert_HLS_To_LinearRGB (const NCollection_Vec3< float > &theHls)
	Converts HLS components into linear RGB ones. More...

static NCollection_Vec3< float >	Convert_LinearRGB_To_Lab (const NCollection_Vec3< float > &theRgb)
	Converts linear RGB components into CIE Lab ones. More...

static NCollection_Vec3< float >	Convert_Lab_To_Lch (const NCollection_Vec3< float > &theLab)
	Converts CIE Lab components into CIE Lch ones. More...

static NCollection_Vec3< float >	Convert_Lab_To_LinearRGB (const NCollection_Vec3< float > &theLab)
	Converts CIE Lab components into linear RGB ones. Note that the resulting values may be out of the valid range for RGB. More...

static NCollection_Vec3< float >	Convert_Lch_To_Lab (const NCollection_Vec3< float > &theLch)
	Converts CIE Lch components into CIE Lab ones. More...

static void	Color2argb (const Quantity_Color &theColor, Standard_Integer &theARGB)
	Convert the color value to ARGB integer value, with alpha equals to 0. So the output is formatted as 0x00RRGGBB. Note that this unpacking does NOT involve non-linear sRGB -> linear RGB conversion, as would be usually expected for RGB color packed into 4 bytes. More...

static void	Argb2color (const Standard_Integer theARGB, Quantity_Color &theColor)
	Convert integer ARGB value to Color. Alpha bits are ignored. Note that this packing does NOT involve linear -> non-linear sRGB conversion, as would be usually expected to preserve higher (for human eye) color precision in 4 bytes. More...

static Standard_Real	Convert_LinearRGB_To_sRGB (Standard_Real theLinearValue)
	Convert linear RGB component into sRGB using OpenGL specs formula (double precision), also known as gamma correction. More...

static float	Convert_LinearRGB_To_sRGB (float theLinearValue)
	Convert linear RGB component into sRGB using OpenGL specs formula (single precision), also known as gamma correction. More...

static Standard_Real	Convert_sRGB_To_LinearRGB (Standard_Real thesRGBValue)
	Convert sRGB component into linear RGB using OpenGL specs formula (double precision), also known as gamma correction. More...

static float	Convert_sRGB_To_LinearRGB (float thesRGBValue)
	Convert sRGB component into linear RGB using OpenGL specs formula (single precision), also known as gamma correction. More...

template<typename T >
static NCollection_Vec3< T >	Convert_LinearRGB_To_sRGB (const NCollection_Vec3< T > &theRGB)
	Convert linear RGB components into sRGB using OpenGL specs formula. More...

template<typename T >
static NCollection_Vec3< T >	Convert_sRGB_To_LinearRGB (const NCollection_Vec3< T > &theRGB)
	Convert sRGB components into linear RGB using OpenGL specs formula. More...

static float	Convert_LinearRGB_To_sRGB_approx22 (float theLinearValue)
	Convert linear RGB component into sRGB using approximated uniform gamma coefficient 2.2. More...

static float	Convert_sRGB_To_LinearRGB_approx22 (float thesRGBValue)
	Convert sRGB component into linear RGB using approximated uniform gamma coefficient 2.2. More...

static NCollection_Vec3< float >	Convert_LinearRGB_To_sRGB_approx22 (const NCollection_Vec3< float > &theRGB)
	Convert linear RGB components into sRGB using approximated uniform gamma coefficient 2.2. More...

static NCollection_Vec3< float >	Convert_sRGB_To_LinearRGB_approx22 (const NCollection_Vec3< float > &theRGB)
	Convert sRGB components into linear RGB using approximated uniform gamma coefficient 2.2. More...

static void	HlsRgb (const Standard_Real theH, const Standard_Real theL, const Standard_Real theS, Standard_Real &theR, Standard_Real &theG, Standard_Real &theB)
	Converts HLS components into sRGB ones. More...

static void	RgbHls (const Standard_Real theR, const Standard_Real theG, const Standard_Real theB, Standard_Real &theH, Standard_Real &theL, Standard_Real &theS)
	Converts sRGB components into HLS ones. More...

static Standard_Real	Epsilon ()
	Returns the value used to compare two colors for equality; 0.0001 by default. More...

static void	SetEpsilon (const Standard_Real theEpsilon)
	Set the value used to compare two colors for equality. More...

Detailed Description

This class allows the definition of an RGB color as triplet of 3 normalized floating point values (red, green, blue).

Although Quantity_Color can be technically used for pass-through storage of RGB triplet in any color space, other OCCT interfaces taking/returning Quantity_Color would expect them in linear space. Therefore, take a look into methods converting to and from non-linear sRGB color space, if needed; for instance, application usually providing color picking within 0..255 range in sRGB color space.

Constructor & Destructor Documentation

◆ Quantity_Color() [1/4]

Quantity_Color::Quantity_Color ( )

inline

Creates Quantity_NOC_YELLOW color (for historical reasons).

◆ Quantity_Color() [2/4]

Quantity_Color::Quantity_Color ( const Quantity_NameOfColor theName )

inline

Creates the color from enumeration value.

◆ Quantity_Color() [3/4]

Quantity_Color::Quantity_Color	(	const Standard_Real	theC1,
		const Standard_Real	theC2,
		const Standard_Real	theC3,
		const Quantity_TypeOfColor	theType
	)

Creates a color according to the definition system theType. Throws exception if values are out of range.

◆ Quantity_Color() [4/4]

Quantity_Color::Quantity_Color ( const NCollection_Vec3< float > & theRgb )

explicit

Define color from linear RGB values.

Member Function Documentation

◆ Argb2color()

static void Quantity_Color::Argb2color	(	const Standard_Integer	theARGB,
		Quantity_Color &	theColor
	)

inlinestatic

Convert integer ARGB value to Color. Alpha bits are ignored. Note that this packing does NOT involve linear -> non-linear sRGB conversion, as would be usually expected to preserve higher (for human eye) color precision in 4 bytes.

◆ Blue()

Standard_Real Quantity_Color::Blue ( ) const

inline

Returns the Blue component (quantity of blue) of the color within range [0.0; 1.0].

◆ ChangeContrast()

void Quantity_Color::ChangeContrast ( const Standard_Real theDelta )

Increases or decreases the contrast (variation of the saturation). The delta is a percentage. Any value greater than zero will increase the contrast. The variation is expressed as a percentage of the current value.

◆ ChangeIntensity()

void Quantity_Color::ChangeIntensity ( const Standard_Real theDelta )

Increases or decreases the intensity (variation of the lightness). The delta is a percentage. Any value greater than zero will increase the intensity. The variation is expressed as a percentage of the current value.

◆ Color2argb()

static void Quantity_Color::Color2argb	(	const Quantity_Color &	theColor,
		Standard_Integer &	theARGB
	)

inlinestatic

Convert the color value to ARGB integer value, with alpha equals to 0. So the output is formatted as 0x00RRGGBB. Note that this unpacking does NOT involve non-linear sRGB -> linear RGB conversion, as would be usually expected for RGB color packed into 4 bytes.

Parameters

theColor	[in] color to convert
theARGB	[out] result color encoded as integer

◆ ColorFromHex()

static bool Quantity_Color::ColorFromHex	(	const Standard_CString	theHexColorString,
		Quantity_Color &	theColor
	)

static

Parses the string as a hex color (like "#FF0" for short sRGB color, or "#FFFF00" for sRGB color)

Parameters

theHexColorString	the string to be parsed
theColor	a color that is a result of parsing

Returns: true if parsing was successful, or false otherwise

◆ ColorFromName() [1/2]

static Standard_Boolean Quantity_Color::ColorFromName	(	const Standard_CString	theName,
		Quantity_NameOfColor &	theColor
	)

static

Finds color from predefined names. For example, the name of the color which corresponds to "BLACK" is Quantity_NOC_BLACK. Returns FALSE if name is unknown.

◆ ColorFromName() [2/2]

static Standard_Boolean Quantity_Color::ColorFromName	(	const Standard_CString	theColorNameString,
		Quantity_Color &	theColor
	)

inlinestatic

Finds color from predefined names.

Parameters

theColorNameString	the color name
theColor	a found color

Returns: false if the color name is unknown, or true if the search by color name was successful

◆ ColorToHex()

static TCollection_AsciiString Quantity_Color::ColorToHex	(	const Quantity_Color &	theColor,
		const bool	theToPrefixHash = `true`
	)

inlinestatic

Returns hex sRGB string in format "#FFAAFF".

◆ Convert_HLS_To_LinearRGB()

static NCollection_Vec3<float> Quantity_Color::Convert_HLS_To_LinearRGB ( const NCollection_Vec3< float > & theHls )

inlinestatic

Converts HLS components into linear RGB ones.

◆ Convert_HLS_To_sRGB()

static NCollection_Vec3<float> Quantity_Color::Convert_HLS_To_sRGB ( const NCollection_Vec3< float > & theHls )

static

Converts HLS components into RGB ones.

◆ Convert_Lab_To_Lch()

static NCollection_Vec3<float> Quantity_Color::Convert_Lab_To_Lch ( const NCollection_Vec3< float > & theLab )

static

Converts CIE Lab components into CIE Lch ones.

◆ Convert_Lab_To_LinearRGB()

static NCollection_Vec3<float> Quantity_Color::Convert_Lab_To_LinearRGB ( const NCollection_Vec3< float > & theLab )

static

Converts CIE Lab components into linear RGB ones. Note that the resulting values may be out of the valid range for RGB.

◆ Convert_Lch_To_Lab()

static NCollection_Vec3<float> Quantity_Color::Convert_Lch_To_Lab ( const NCollection_Vec3< float > & theLch )

static

Converts CIE Lch components into CIE Lab ones.

◆ Convert_LinearRGB_To_HLS()

static NCollection_Vec3<float> Quantity_Color::Convert_LinearRGB_To_HLS ( const NCollection_Vec3< float > & theRgb )

inlinestatic

Converts Linear RGB components into HLS ones.

◆ Convert_LinearRGB_To_Lab()

static NCollection_Vec3<float> Quantity_Color::Convert_LinearRGB_To_Lab ( const NCollection_Vec3< float > & theRgb )

static

Converts linear RGB components into CIE Lab ones.

◆ Convert_LinearRGB_To_sRGB() [1/3]

static Standard_Real Quantity_Color::Convert_LinearRGB_To_sRGB ( Standard_Real theLinearValue )

inlinestatic

Convert linear RGB component into sRGB using OpenGL specs formula (double precision), also known as gamma correction.

◆ Convert_LinearRGB_To_sRGB() [2/3]

static float Quantity_Color::Convert_LinearRGB_To_sRGB ( float theLinearValue )

inlinestatic

Convert linear RGB component into sRGB using OpenGL specs formula (single precision), also known as gamma correction.

◆ Convert_LinearRGB_To_sRGB() [3/3]

template<typename T >

static NCollection_Vec3<T> Quantity_Color::Convert_LinearRGB_To_sRGB ( const NCollection_Vec3< T > & theRGB )

inlinestatic

Convert linear RGB components into sRGB using OpenGL specs formula.

◆ Convert_LinearRGB_To_sRGB_approx22() [1/2]

static float Quantity_Color::Convert_LinearRGB_To_sRGB_approx22 ( float theLinearValue )

inlinestatic

Convert linear RGB component into sRGB using approximated uniform gamma coefficient 2.2.

◆ Convert_LinearRGB_To_sRGB_approx22() [2/2]

static NCollection_Vec3<float> Quantity_Color::Convert_LinearRGB_To_sRGB_approx22 ( const NCollection_Vec3< float > & theRGB )

inlinestatic

Convert linear RGB components into sRGB using approximated uniform gamma coefficient 2.2.

◆ Convert_sRGB_To_HLS()

static NCollection_Vec3<float> Quantity_Color::Convert_sRGB_To_HLS ( const NCollection_Vec3< float > & theRgb )

static

Converts sRGB components into HLS ones.

◆ Convert_sRGB_To_LinearRGB() [1/3]

static Standard_Real Quantity_Color::Convert_sRGB_To_LinearRGB ( Standard_Real thesRGBValue )

inlinestatic

Convert sRGB component into linear RGB using OpenGL specs formula (double precision), also known as gamma correction.

◆ Convert_sRGB_To_LinearRGB() [2/3]

static float Quantity_Color::Convert_sRGB_To_LinearRGB ( float thesRGBValue )

inlinestatic

Convert sRGB component into linear RGB using OpenGL specs formula (single precision), also known as gamma correction.

◆ Convert_sRGB_To_LinearRGB() [3/3]

template<typename T >

static NCollection_Vec3<T> Quantity_Color::Convert_sRGB_To_LinearRGB ( const NCollection_Vec3< T > & theRGB )

inlinestatic

Convert sRGB components into linear RGB using OpenGL specs formula.

◆ Convert_sRGB_To_LinearRGB_approx22() [1/2]

static float Quantity_Color::Convert_sRGB_To_LinearRGB_approx22 ( float thesRGBValue )

inlinestatic

Convert sRGB component into linear RGB using approximated uniform gamma coefficient 2.2.

◆ Convert_sRGB_To_LinearRGB_approx22() [2/2]

static NCollection_Vec3<float> Quantity_Color::Convert_sRGB_To_LinearRGB_approx22 ( const NCollection_Vec3< float > & theRGB )

inlinestatic

Convert sRGB components into linear RGB using approximated uniform gamma coefficient 2.2.

◆ Delta()

void Quantity_Color::Delta	(	const Quantity_Color &	theColor,
		Standard_Real &	DC,
		Standard_Real &	DI
	)		const

Returns the percentage change of contrast and intensity between this and another color. <DC> and <DI> are percentages, either positive or negative. The calculation is with respect to this color. If <DC> is positive then <me> is more contrasty. If <DI> is positive then <me> is more intense.

◆ DeltaE2000()

Standard_Real Quantity_Color::DeltaE2000 ( const Quantity_Color & theOther ) const

Returns the value of the perceptual difference between this color and theOther, computed using the CIEDE2000 formula. The difference is in range [0, 100.], with 1 approximately corresponding to the minimal percievable difference (usually difference 5 or greater is needed for the difference to be recognizable in practice).

◆ Distance()

Standard_Real Quantity_Color::Distance ( const Quantity_Color & theColor ) const

inline

Returns the distance between two colors. It's a value between 0 and the square root of 3 (the black/white distance).

◆ DumpJson()

void Quantity_Color::DumpJson	(	Standard_OStream &	theOStream,
		Standard_Integer	theDepth = `-1`
	)		const

Dumps the content of me into the stream.

◆ Epsilon()

static Standard_Real Quantity_Color::Epsilon ( )

static

Returns the value used to compare two colors for equality; 0.0001 by default.

◆ Green()

Standard_Real Quantity_Color::Green ( ) const

inline

Returns the Green component (quantity of green) of the color within range [0.0; 1.0].

◆ HlsRgb()

static void Quantity_Color::HlsRgb	(	const Standard_Real	theH,
		const Standard_Real	theL,
		const Standard_Real	theS,
		Standard_Real &	theR,
		Standard_Real &	theG,
		Standard_Real &	theB
	)

inlinestatic

Converts HLS components into sRGB ones.

◆ Hue()

Standard_Real Quantity_Color::Hue ( ) const

inline

Returns the Hue component (hue angle) of the color in degrees within range [0.0; 360.0], 0.0 being Red. -1.0 is a special value reserved for grayscale color (S should be 0.0)

◆ InitFromJson()

Standard_Boolean Quantity_Color::InitFromJson	(	const Standard_SStream &	theSStream,
		Standard_Integer &	theStreamPos
	)

Inits the content of me from the stream.

◆ IsDifferent()

Standard_Boolean Quantity_Color::IsDifferent ( const Quantity_Color & theOther ) const

inline

Returns TRUE if the distance between two colors is greater than Epsilon().

◆ IsEqual()

Standard_Boolean Quantity_Color::IsEqual ( const Quantity_Color & theOther ) const

inline

Returns TRUE if the distance between two colors is no greater than Epsilon().

◆ Light()

Standard_Real Quantity_Color::Light ( ) const

inline

Returns the Light component (value of the lightness) of the color within range [0.0; 1.0].

◆ Name() [1/2]

Quantity_NameOfColor Quantity_Color::Name ( ) const

Returns the name of the nearest color from the Quantity_NameOfColor enumeration.

◆ Name() [2/2]

static Quantity_NameOfColor Quantity_Color::Name	(	const Standard_Real	theR,
		const Standard_Real	theG,
		const Standard_Real	theB
	)

inlinestatic

Returns the color from Quantity_NameOfColor enumeration nearest to specified RGB values.

◆ operator const NCollection_Vec3< float > &()

Quantity_Color::operator const NCollection_Vec3< float > & ( ) const

inline

Return the color as vector of 3 float elements.

◆ operator!=()

Standard_Boolean Quantity_Color::operator!= ( const Quantity_Color & theOther ) const

inline

Alias to IsDifferent().

◆ operator==()

Standard_Boolean Quantity_Color::operator== ( const Quantity_Color & theOther ) const

inline

Alias to IsEqual().

◆ Red()

Standard_Real Quantity_Color::Red ( ) const

inline

Returns the Red component (quantity of red) of the color within range [0.0; 1.0].

◆ Rgb()

const NCollection_Vec3<float>& Quantity_Color::Rgb ( ) const

inline

Return the color as vector of 3 float elements.

◆ RgbHls()

static void Quantity_Color::RgbHls	(	const Standard_Real	theR,
		const Standard_Real	theG,
		const Standard_Real	theB,
		Standard_Real &	theH,
		Standard_Real &	theL,
		Standard_Real &	theS
	)

inlinestatic

Converts sRGB components into HLS ones.

◆ Saturation()

Standard_Real Quantity_Color::Saturation ( ) const

inline

Returns the Saturation component (value of the saturation) of the color within range [0.0; 1.0].

◆ SetEpsilon()

static void Quantity_Color::SetEpsilon ( const Standard_Real theEpsilon )

static

Set the value used to compare two colors for equality.

◆ SetValues() [1/2]

void Quantity_Color::SetValues ( const Quantity_NameOfColor theName )

inline

Updates the color from specified named color.

◆ SetValues() [2/2]

void Quantity_Color::SetValues	(	const Standard_Real	theC1,
		const Standard_Real	theC2,
		const Standard_Real	theC3,
		const Quantity_TypeOfColor	theType
	)

Updates a color according to the mode specified by theType. Throws exception if values are out of range.

◆ SquareDistance()

Standard_Real Quantity_Color::SquareDistance ( const Quantity_Color & theColor ) const

inline

Returns the square of distance between two colors.

◆ StringName()

static Standard_CString Quantity_Color::StringName ( const Quantity_NameOfColor theColor )

static

Returns the name of the color identified by the given Quantity_NameOfColor enumeration value.

◆ Values()

void Quantity_Color::Values	(	Standard_Real &	theC1,
		Standard_Real &	theC2,
		Standard_Real &	theC3,
		const Quantity_TypeOfColor	theType
	)		const

Returns in theC1, theC2 and theC3 the components of this color according to the color system definition theType.

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

Quantity_Color.hxx

Quantity_Color Class Reference

Public Member Functions

Static Public Member Functions

Routines converting colors between different encodings and color spaces

Detailed Description

Constructor & Destructor Documentation

◆ Quantity_Color() [1/4]

◆ Quantity_Color() [2/4]

◆ Quantity_Color() [3/4]

◆ Quantity_Color() [4/4]

Member Function Documentation

◆ Argb2color()

◆ Blue()

◆ ChangeContrast()

◆ ChangeIntensity()

◆ Color2argb()

◆ ColorFromHex()

◆ ColorFromName() [1/2]

◆ ColorFromName() [2/2]

◆ ColorToHex()

◆ Convert_HLS_To_LinearRGB()

◆ Convert_HLS_To_sRGB()

◆ Convert_Lab_To_Lch()

◆ Convert_Lab_To_LinearRGB()

◆ Convert_Lch_To_Lab()

◆ Convert_LinearRGB_To_HLS()

◆ Convert_LinearRGB_To_Lab()

◆ Convert_LinearRGB_To_sRGB() [1/3]

◆ Convert_LinearRGB_To_sRGB() [2/3]

◆ Convert_LinearRGB_To_sRGB() [3/3]

◆ Convert_LinearRGB_To_sRGB_approx22() [1/2]

◆ Convert_LinearRGB_To_sRGB_approx22() [2/2]

◆ Convert_sRGB_To_HLS()

◆ Convert_sRGB_To_LinearRGB() [1/3]

◆ Convert_sRGB_To_LinearRGB() [2/3]

◆ Convert_sRGB_To_LinearRGB() [3/3]

◆ Convert_sRGB_To_LinearRGB_approx22() [1/2]

◆ Convert_sRGB_To_LinearRGB_approx22() [2/2]

◆ Delta()

◆ DeltaE2000()

◆ Distance()

◆ DumpJson()

◆ Epsilon()

◆ Green()

◆ HlsRgb()

◆ Hue()

◆ InitFromJson()

◆ IsDifferent()

◆ IsEqual()

◆ Light()

◆ Name() [1/2]

◆ Name() [2/2]

◆ operator const NCollection_Vec3< float > &()

◆ operator!=()

◆ operator==()

◆ Red()

◆ Rgb()

◆ RgbHls()

◆ Saturation()

◆ SetEpsilon()

◆ SetValues() [1/2]

◆ SetValues() [2/2]

◆ SquareDistance()

◆ StringName()

◆ Values()