SoGLColorIndexElement - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin

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NAMESoGLColorIndexElement − The SoGLColorIndexElement class sets the current OpenGL color​.

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SYNOPSIS
#include <Inventor/elements/SoGLColorIndexElement​.h> Inherits SoReplacedElement​.

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Public Member Functionsvirtual void init (SoState *state)
int32_t getNum (void) const
int32_t get (const int index) const

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Static Public Member Functionsstatic SoType getClassTypeId (void)
static int getClassStackIndex (void)
static void * createInstance (void)
static void initClass (void)
static SbBool isColorIndexMode (SoState *state)
static void set (SoState *const state, SoNode *const node, const int32_t numindices, const int32_t *const indices)
static const SoGLColorIndexElement * getInstance (SoState *state)
static int32_t getDefault (void)

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Protected Member Functionsvirtual ~SoGLColorIndexElement ()

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Additional Inherited Members

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Detailed DescriptionThe SoGLColorIndexElement class sets the current OpenGL color​. This element is only used when the OpenGL canvas is in colorindex mode, ie where colors for individual pixels are fetched from a color lookup table ('CLUT')​. The usual thing to do is to set up a canvas in RGBA truecolor mode​. One common use for colorindex mode OpenGL canvases is to use one in the overlay planes (which are usually limited to only 2 or 4 available colors), if supported by the OpenGL hardware and / or driver​. See also SoColorIndex

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Constructor & Destructor Documentation

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SoGLColorIndexElement::~SoGLColorIndexElement () [protected], [virtual]The destructor​.

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Member Function Documentation

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void * SoGLColorIndexElement::createInstance (void) [static]This API member is considered internal to the library, as it is not likely to be of interest to the application programmer​.

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SbBool SoGLColorIndexElement::isColorIndexMode (SoState * state) [static]Returns TRUE if the current GL context is in color index mode​.

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void SoGLColorIndexElement::init (SoState * state) [virtual]This function initializes the element type in the given SoState​. It is called for the first element of each enabled element type in SoState objects​. Reimplemented from SoReplacedElement​.

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void SoGLColorIndexElement::set (SoState *const state, SoNode *const node, const int32_t numindices, const int32_t *const indices) [static]Sets current color indices​.

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const SoGLColorIndexElement * SoGLColorIndexElement::getInstance (SoState * state) [static]Returns the current element​.

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int32_t SoGLColorIndexElement::getNum (void) constReturns number of color indices in element​.

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AuthorGenerated automatically by Doxygen for Coin from the source code​. 0

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Johanes Gumabo

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