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SbColor Class Reference

The SbColor class contains the red, green and blue components which make up a color value. More...

#include <Inventor/SbColor.h>

Inheritance diagram for SbColor::

List of all members.

Public Methods
	SbColor (void)
	SbColor (const SbVec3f &v)
	SbColor (const float *const rgb)
	SbColor (const float r, const float g, const float b)
SbColor &	setHSVValue (float h, float s, float v)
SbColor &	setHSVValue (const float hsv[3])
void	getHSVValue (float &h, float &s, float &v) const
void	getHSVValue (float hsv[3]) const
SbColor &	setPackedValue (const uint32_t rgba, float &transparency)
uint32_t	getPackedValue (const float transparency=0.0f) const

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Detailed Description

The SbColor class contains the red, green and blue components which make up a color value.

This class is used within other classes in Coin. It inherits the SbVec3f class, interpreting the 3 component vector as a vector in the RGB cube where the red, green and blue components corresponds to x, y and z respectively.

SbColor also adds a few extra methods for convenient handling of setting and getting color values as 32 bit packed values or as HSV values.

See also:

SbVec3f, SbColor4f

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Constructor & Destructor Documentation

SbColor::SbColor (  void )

Default constructor. The color value will be uninitialized.

SbColor::SbColor (  const SbVec3f & v )

Construct and initialize an SbColor with the red, green and blue values given by the v vector.

SbColor::SbColor (  const float *const rgb )

Construct and initialize an SbColor with the red, green and blue taken from given rgb array.

SbColor::SbColor (  const float r, const float g, const float b )

Construct and initialize an SbColor with the given red, green and blue values.

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Member Function Documentation

SbColor & SbColor::setHSVValue (  float hue, float saturation, float value )

Set the color as a hue, saturation, value triplet. The hue component should be normalized to within [0, 1] before you call this method, where 0 is equal to 0° and 1 is equal to 360°. See also: getHSVValue().

SbColor & SbColor::setHSVValue (  const float hsv[3] )

Set the color as a hue, saturation, value triplet. The hue component should be normalized to within [0, 1] before you call this method, where 0 is equal to 0° and 1 is equal to 360°. See also: getHSVValue().

void SbColor::getHSVValue (  float & h, float & s, float & v )  const

Return the color as a hue, saturation, value triplet. See also: setHSVValue().

void SbColor::getHSVValue (  float hsv[3] )  const

Return the color as a hue, saturation, value triplet. See also: setHSVValue().

SbColor & SbColor::setPackedValue (  const uint32_t rgba, float & transparency )

Set the color value as a 32 bit combined red/green/blue/alpha value. Each component is 8 bit wide (i.e. from 0x00 to 0xff), and the red value should be stored leftmost, like this: 0xRRGGBBAA. The transparency value is not stored internally in SbColor, just converted to a transparency value in [0, 1] and returned in the transparency field. A value of 1.0 means completely transparent and a value of 0.0 is completely opaque. See also: getPackedValue().

uint32_t SbColor::getPackedValue (  const float transparency = 0.0f )  const

Return color as a 32 bit packed integer in the form 0xRRGGBBAA. The transparency part of the return value is taken from the supplied transparency argument. See also: setPackedValue().

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

• SbColor.cpp
• SbColor.h

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