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

NAMESoGLUpdateAreaElement − The SoGLUpdateAreaElement class is yet to be documented​.

SYNOPSIS
#include <Inventor/elements/SoGLUpdateAreaElement​.h> Inherits SoElement​.

Public Member Functionsvirtual void init (SoState *state)
virtual void push (SoState *state)
virtual void pop (SoState *state, const SoElement *prevTopElement)
virtual SbBool matches (const SoElement *element) const
virtual SoElement * copyMatchInfo () const

Static Public Member Functionsstatic SoType getClassTypeId (void)
static int getClassStackIndex (void)
static void * createInstance (void)
static void initClass (void)
static void set (SoState *const state, const SbVec2f &origin, const SbVec2f &size)
static SbBool get (SoState *const state, SbVec2f &origin, SbVec2f &size)
static SbVec2f getDefaultOrigin ()
static SbVec2f getDefaultSize ()

Protected Member Functionsvirtual ~SoGLUpdateAreaElement ()

Protected AttributesSbVec2f origin
SbVec2f size

Additional Inherited Members

Detailed DescriptionThe SoGLUpdateAreaElement class is yet to be documented​. FIXME: write doc​.

Constructor & Destructor Documentation

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

Member Function Documentation

void * SoGLUpdateAreaElement::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​.


void SoGLUpdateAreaElement::initClass (void) [static]This static method initializes static data for the SoGLUpdateAreaElement class​.

void SoGLUpdateAreaElement::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 SoElement​.

void SoGLUpdateAreaElement::push (SoState * state) [virtual]This method is called every time a new element is required in one of the stacks​. This happens when a writable element is requested, using SoState::getElement() or indirectly SoElement::getElement(), and the depth of the current element is less than the state depth​. Override this method if your element needs to copy data from the previous top of stack​. The push() method is called on the new element, and the previous element can be found using SoElement::getNextInStack()​. Reimplemented from SoElement​.

void SoGLUpdateAreaElement::pop (SoState * state, const SoElement * prevTopElement) [virtual]This method is callled when the state is popped, and the depth of the element is bigger than the current state depth​. pop() is called on the new top of stack, and a pointer to the previous top of stack is passed in prevTopElement​. Override this method if you need to copy some state information from the previous top of stack​. Reimplemented from SoElement​.

SbBool SoGLUpdateAreaElement::matches (const SoElement * element) const [virtual]This function returns TRUE is the element matches another element (of the same class), with respect to cache validity​. If the application programmer's extension element has a matches() function, it should also have a copyMatchInfo() function​. Implements SoElement​.

SoElement * SoGLUpdateAreaElement::copyMatchInfo (void) const [virtual]This function creates a copy of the element that contains enough information to enable the matches() function to work​. Used to help with scenegraph traversal caching operations​. Implements SoElement​.

void SoGLUpdateAreaElement::set (SoState *const state, const SbVec2f & origin, const SbVec2f & size) [static]Sets the update area​. This can, for instance, be used when rendering in the front buffer, to only render parts of the scene during a window expose event​. origin and size is in normalized window coordinates​.

SbBool SoGLUpdateAreaElement::get (SoState *const state, SbVec2f & origin, SbVec2f & size) [static]Returns the current update area​. See also set()

SbVec2f SoGLUpdateAreaElement::getDefaultOrigin (void) [static]Returns the default update area origin, (0,0)​.

SbVec2f SoGLUpdateAreaElement::getDefaultSize (void) [static]Returns the default update area size, (1,1)​.

Member Data Documentation

SoGLUpdateAreaElement::origin [protected]FIXME: write doc

SoGLUpdateAreaElement::size [protected]FIXME: write doc

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