SbColor4f - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESbColor4f − The SbColor4f class contains the red, green, blue and alpha components which make up a color value​.
SYNOPSIS
#include <Inventor/SbColor4f​.h>
Public Member FunctionsSbColor4f (void)
SbColor4f (const SbColor &rgb, const float alpha)
SbColor4f (const SbVec4f &v)
SbColor4f (const float *const rgba)
SbColor4f (const float r, const float g, const float b, const float a=1​.0f)
void setValue (const float r, const float g, const float b, const float a=1​.0f)
void setValue (const float col[4])
const float * getValue () const
void getValue (float &r, float &g, float &b, float &a)
SbColor4f & setRGB (const SbColor &col)
void getRGB (SbColor &color)
SbColor4f & setHSVValue (float h, float s, float v, float a=1​.0f)
SbColor4f & setHSVValue (const float hsv[3], float alpha=1​.0f)
void getHSVValue (float &h, float &s, float &v) const
void getHSVValue (float hsv[3]) const
SbColor4f & setPackedValue (const uint32_t rgba)
uint32_t getPackedValue () const
float operator[] (const int idx) const
float & operator[] (const int idx)
SbColor4f & operator*= (const float d)
SbColor4f & operator/= (const float d)
SbColor4f & operator+= (const SbColor4f &c)
SbColor4f & operator−= (const SbColor4f &c)
FriendsSbColor4f operator* (const SbColor4f &c, const float d)
SbColor4f operator* (const float d, const SbColor4f &c)
SbColor4f operator/ (const SbColor4f &c, const float d)
SbColor4f operator+ (const SbColor4f &v1, const SbColor4f &v2)
SbColor4f operator− (const SbColor4f &v1, const SbColor4f &v2)
int operator== (const SbColor4f &v1, const SbColor4f &v2)
int operator!= (const SbColor4f &v1, const SbColor4f &v2)
Detailed DescriptionThe SbColor4f class contains the red, green, blue and alpha components which make up a color value​. This class is used internally within other classes in Coin​. It contains a 4 component vector as a position in the RGB cube with an additional transparency value​. The red, green and blue values should be between 0​.0 and 1​.0, where 0​.0 is interpreted as minimum intensity, and 1​.0 is maximum intensity​. The transparency value is also between 0​.0 and 1​.0​. SbColor4f contains methods for convenient handling of setting and getting color values as 32 bit packed values or as HSV values​. Note: this class is not part of Open Inventor, but is an extension to the API​. Don't use it if you want your code to be compatible with Open Inventor​. See also SbColor
Constructor & Destructor Documentation
SbColor4f::SbColor4f (void)Default constructor​. The color value will be uninitialized until explicitly set​.
SbColor4f::SbColor4f (const SbColor & rgb, const float alpha)Construct and initialize an SbColor4f with the red, green and blue components from the SbColor rgb, and the alpha value from the supplied alpha argument​.
SbColor4f::SbColor4f (const SbVec4f & v)Construct and initialize an SbColor4f with the red, green, blue and alpha values given by the v vector​.
SbColor4f::SbColor4f (const float *const rgba)Construct and initialize an SbColor4f with the red, green, blue and alpha taken from given rgba array
SbColor4f::SbColor4f (const float r, const float g, const float b, const float a = 1​.0f)Construct and initialize an SbColor4f with the given red, green, blue and alpha values​.
Member Function Documentation
void SbColor4f::setValue (const float r, const float g, const float b, const float a = 1​.0f)Set a new color​. Referenced by setPackedValue(), and SoSFColorRGBA::setValue()​.
void SbColor4f::setValue (const float col[4])Set a new color​. The elements of the array will be read in turned as red, green, blue and transparency​.
const float * SbColor4f::getValue () constReturn pointer to array of 4 float values representing the red, green, blue and transparency values of the color​. Referenced by SoTextureCombine::doAction(), SoDirectionalLight::GLRender(), SoPointLight::GLRender(), SoSpotLight::GLRender(), SoVRMLDirectionalLight::GLRender(), SoVRMLPointLight::GLRender(), and SoVRMLSpotLight::GLRender()​.
void SbColor4f::getValue (float & r, float & g, float & b, float & a)Return components of the stored color​.
SbColor4f & SbColor4f::setRGB (const SbColor & col)Sets the RGB components of the color​. The alpha component is left unchanged​. Referenced by SoDirectionalLight::GLRender(), SoPointLight::GLRender(), SoSpotLight::GLRender(), SoVRMLDirectionalLight::GLRender(), SoVRMLPointLight::GLRender(), and SoVRMLSpotLight::GLRender()​.
void SbColor4f::getRGB (SbColor & color)Returns the RGB components of this color​.
SbColor4f & SbColor4f::setHSVValue (float hue, float saturation, float value, float alpha = 1​.0f)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()​. References SoDebugError::postWarning(), and SbColor::setHSVValue()​. Referenced by SoMFColorRGBA::set1HSVValue(), setHSVValue(), SoMFColorRGBA::setHSVValue(), and SoSFColorRGBA::setHSVValue()​.
SbColor4f & SbColor4f::setHSVValue (const float hsv[3], float a = 1​.0f)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()​. References setHSVValue()​.
void SbColor4f::getHSVValue (float & h, float & s, float & v) constReturn the color as a hue, saturation, value triplet​. Alpha component is ignored​. See also setHSVValue()​. References SbColor::getHSVValue()​. Referenced by getHSVValue()​.
void SbColor4f::getHSVValue (float hsv[3]) constReturn the color as a hue, saturation, value triplet​. Alpha component is ignored​. See also setHSVValue()​. References getHSVValue()​.
SbColor4f & SbColor4f::setPackedValue (const uint32_t rgba)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​. See also getPackedValue()​. References setValue()​.
uint32_t SbColor4f::getPackedValue () constReturn color as a 32 bit packed integer in the form 0xRRGGBBAA​. See also setPackedValue()​. Referenced by SoVRMLPointSet::GLRender()​.
float SbColor4f::operator[] (const int idx) constReturns the color component represented by the given index idx​. 0 is red, 1 is green, 2 is blue and 3 is the transparency value​.
float & SbColor4f::operator[] (const int idx)Returns the color component represented by the given index idx​. 0 is red, 1 is green, 2 is blue and 3 is the transparency value​.
SbColor4f & SbColor4f::operator*= (const float d)Multiplies the RGB components by d​. The alpha component is left unchanged​.
SbColor4f & SbColor4f::operator/= (const float d)Divides the RGB components by d​. The alpha component is left unchanged​.
SbColor4f & SbColor4f::operator+= (const SbColor4f & c)Adds the RGB components​. Alpha is ignored​.
SbColor4f & SbColor4f::operator−= (const SbColor4f & c)Subtracts the RGB components​. Alpha is ignored​.
Friends And Related Function Documentation
SbColor4f operator* (const SbColor4f & c, const float d) [friend]Multiplies the RGB components by d​. Alpha is left unchanged​.
SbColor4f operator* (const float d, const SbColor4f & c) [friend]Multiplies the RGB components by d​. Alpha is left unchanged​.
SbColor4f operator/ (const SbColor4f & c, const float d) [friend]Divides the RGB components by d​. Alpha is left unchanged​.
SbColor4f operator+ (const SbColor4f & v1, const SbColor4f & v2) [friend]Adds the RGB components of the two colors​. Alpha is taken from the first color (v1)​.
SbColor4f operator− (const SbColor4f & v1, const SbColor4f & v2) [friend]Subtracts the RGB components of the two colors​. Alpha is taken from the first color (v1)​.
int operator== (const SbColor4f & v1, const SbColor4f & v2) [friend]Check if two colors are equal​. Returns 1 if equal, 0 if unequal​.
int operator!= (const SbColor4f & v1, const SbColor4f & v2) [friend]Check if two colors are unequal​. Returns 0 if equal, 1 if unequal​.
AuthorGenerated automatically by Doxygen for Coin from the source code​. 0
Johanes Gumabo
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