NAME¶

SbColor — color vector class

INHERITS FROM¶

SbVec3f

SYNOPSIS¶

#include <Inventor/SbColor.h>
Methods from class SbColor:

SbColor(const SbVec3f vec3f)
SbColor(const float rgb[3])
SbColor(float r, float g, 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(uint32_t rgba, float& transparency)
uint32_t getPackedValue(float transparency = 0.0) const
Methods from class SbVec3f:

SbVec3f cross(const SbVec3f &v) const
float dot(const SbVec3f &v) const
SbBool equals(const SbVec3f v, float tolerance) const
SbVec3f getClosestAxis() const
const float * getValue() const
void getValue(float &x, float &y, float &z) const
float length() const
void negate()
float normalize()
SbVec3f & setValue(const float v[3])
SbVec3f & setValue(float x, float y, float z)
SbVec3f & setValue(const SbVec3f &barycentic, const SbVec3f &v0, const SbVec3f &v1, const SbVec3f &v2)
float & operator [](int i)
const float & operator [](int i)
SbVec3f & operator *=(float d)
SbVec3f & operator /=(float d)
SbVec3f & operator +=(const SbVec3f &u)
SbVec3f & operator -=(const SbVec3f &u)
SbVec3f operator -() const
SbVec3f operator *(const SbVec3f &v, float d)
SbVec3f operator *(float d, const SbVec3f &v)
SbVec3f operator /(const SbVec3f &v, float d)
SbVec3f operator +(const SbVec3f &v1, const SbVec3f &v2)
SbVec3f operator -(const SbVec3f &v1, const SbVec3f &v2)
int operator ==(const SbVec3f &v1, const SbVec3f &v2)
int operator !=(const SbVec3f &v1, const SbVec3f &v2)

DESCRIPTION¶

This class is used to represent an RGB color. Each component of the vector is a floating-point number between 0.0 and 1.0. There are routines to convert back and forth between RGB and HSV.

METHODS¶

SbColor(const SbVec3f vec3f)
SbColor(const float rgb[3])
SbColor(float r, float g, float b)
Constructors for color vector.

SbColor & setHSVValue(float h, float s, float v)
Sets value of color vector from 3 HSV (Hue, Saturation, and Value) components. Value is the same as brightness of the color.

SbColor & setHSVValue(const float hsv[3])
Sets value of color vector from array of 3 HSV components

void getHSVValue(float &h, float &s, float &v) const
Returns 3 individual HSV components

void getHSVValue(float hsv[3]) const
Returns an array of 3 HSV components

SbColor & setPackedValue(uint32_t rgba, float& transparency)
Sets value of color vector from an RGBA packed color value. The packed color format expressed in hexadecimal is 0xrrggbbaa, where

	rr is the red value
	gg is the green value
	bb is the blue value
	aa is the alpha value

RGBA component values range from 0 to 0xFF (255). The returned transparency value is a floating point value between 0.0 (opaque) and 1.0 (completely transparent). It is derived from the alpha component of the RGBA color.

uint32_t getPackedValue(float transparency = 0.0) const
Returns an RGBA packed color value, derived from the color vector and the passed transparency value. The alpha component is set to (1.0 - transparency) * 255, resulting in a hex value between 0 and 0xFF. If transparency not specified, alpha is set to 0xFF (opaque).