Quantity_ColorRGBA Class Reference

The pair of Quantity_Color and Alpha component (1.0 opaque, 0.0 transparent). More...

#include <Quantity_ColorRGBA.hxx>

Public Member Functions
	Quantity_ColorRGBA ()
	Creates a color with the default value. More...
	Quantity_ColorRGBA (const Quantity_Color &theRgb)
	Creates the color with specified RGB value. More...
	Quantity_ColorRGBA (const NCollection_Vec4< float > &theRgba)
	Creates the color from RGBA vector. More...
const Quantity_Color &	GetRGB () const
	Return RGB color value. More...
Quantity_Color &	ChangeRGB ()
	Modify RGB color components without affecting alpha value. More...
void	SetRGB (const Quantity_Color &theRgb)
	Assign RGB color components without affecting alpha value. More...
Standard_ShortReal	Alpha () const
	Return alpha value (1.0 means opaque, 0.0 means fully transparent). More...
void	SetAlpha (const Standard_ShortReal theAlpha)
	Assign the alpha value. More...
	operator const NCollection_Vec4< float > & () const
	Return the color as vector of 4 float elements. More...
bool	IsDifferent (const Quantity_ColorRGBA &theOther) const
	Returns true if the distance between colors is greater than Epsilon(). More...
bool	operator!= (const Quantity_ColorRGBA &theOther) const
	Returns true if the distance between colors is greater than Epsilon(). More...
bool	IsEqual (const Quantity_ColorRGBA &theOther) const
	Two colors are considered to be equal if their distance is no greater than Epsilon(). More...
bool	operator== (const Quantity_ColorRGBA &theOther) const
	Two colors are considered to be equal if their distance is no greater than Epsilon(). More...

Detailed Description

The pair of Quantity_Color and Alpha component (1.0 opaque, 0.0 transparent).

Constructor & Destructor Documentation

Quantity_ColorRGBA::Quantity_ColorRGBA ( )

inline

Creates a color with the default value.

Quantity_ColorRGBA::Quantity_ColorRGBA ( const Quantity_Color &  theRgb )

inlineexplicit

Creates the color with specified RGB value.

Quantity_ColorRGBA::Quantity_ColorRGBA ( const NCollection_Vec4< float > &  theRgba )

inlineexplicit

Creates the color from RGBA vector.

Member Function Documentation

Standard_ShortReal Quantity_ColorRGBA::Alpha ( ) const

inline

Return alpha value (1.0 means opaque, 0.0 means fully transparent).

Quantity_Color& Quantity_ColorRGBA::ChangeRGB ( )

inline

Modify RGB color components without affecting alpha value.

const Quantity_Color& Quantity_ColorRGBA::GetRGB ( ) const

inline

Return RGB color value.

bool Quantity_ColorRGBA::IsDifferent ( const Quantity_ColorRGBA &  theOther ) const

inline

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

bool Quantity_ColorRGBA::IsEqual ( const Quantity_ColorRGBA &  theOther ) const

inline

Two colors are considered to be equal if their distance is no greater than Epsilon().

Quantity_ColorRGBA::operator const NCollection_Vec4< float > & ( ) const

inline

Return the color as vector of 4 float elements.

bool Quantity_ColorRGBA::operator!= ( const Quantity_ColorRGBA &  theOther ) const

inline

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

bool Quantity_ColorRGBA::operator== ( const Quantity_ColorRGBA &  theOther ) const

inline

Two colors are considered to be equal if their distance is no greater than Epsilon().

void Quantity_ColorRGBA::SetAlpha ( const Standard_ShortReal  theAlpha )

inline

Assign the alpha value.

void Quantity_ColorRGBA::SetRGB ( const Quantity_Color &  theRgb )

inline

Assign RGB color components without affecting alpha value.

---

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

• Quantity_ColorRGBA.hxx