SoAccumulatedElement(3) Coin SoAccumulatedElement(3)
NAME
SoAccumulatedElement -
The SoAccumulatedElement class is an abstract class for storing accumulated state.
This is the superclass of elements where new element data accumulates with older data.
SYNOPSIS
#include <Inventor/elements/SoAccumulatedElement.h>
Inherits SoElement.
Inherited by SoBumpMapMatrixElement, SoClipPlaneElement, SoLightElement, SoModelMatrixElement, SoMultiTextureMatrixElement,
SoProfileElement, SoTextureMatrixElement, and SoVertexAttributeElement.
Public Member Functions
virtual SbBool matches (const SoElement *element) const
Static Public Member Functions
static SoType getClassTypeId (void)
static int getClassStackIndex (void)
static void initClass (void)
Protected Member Functions
virtual void init (SoState *state)
virtual void push (SoState *state)
void clearNodeIds (void)
void addNodeId (const SoNode *const node)
void setNodeId (const SoNode *const node)
void copyNodeIds (const SoAccumulatedElement *copyfrom)
virtual SoElement * copyMatchInfo (void) const
virtual void captureThis (SoState *state) const
Protected Attributes
SbList< uint32_t > nodeIds
Additional Inherited Members
Detailed Description
The SoAccumulatedElement class is an abstract class for storing accumulated state.
This is the superclass of elements where new element data accumulates with older data.
The element stores node id values for all nodes accumulated during traversal for the current state. These id values are used to determine
when to invalidate caches.
See also:
SoReplacedElement, SoFloatElement, SoInt32Element
Member Function Documentation
SoType SoAccumulatedElement::getClassTypeId (void) [static]
This static method returns the class type.
Reimplemented from SoElement.
Reimplemented in SoLightElement, SoMultiTextureMatrixElement, SoProfileElement, SoBBoxModelMatrixElement, SoClipPlaneElement,
SoGLMultiTextureMatrixElement, SoModelMatrixElement, SoBumpMapMatrixElement, SoTextureMatrixElement, SoGLClipPlaneElement,
SoGLModelMatrixElement, and SoGLTextureMatrixElement.
int SoAccumulatedElement::getClassStackIndex (void) [static]
This static method returns the state stack index for the class.
Reimplemented from SoElement.
Reimplemented in SoLightElement, SoMultiTextureMatrixElement, SoProfileElement, SoBBoxModelMatrixElement, SoClipPlaneElement,
SoGLMultiTextureMatrixElement, SoModelMatrixElement, SoBumpMapMatrixElement, SoTextureMatrixElement, SoGLClipPlaneElement,
SoGLModelMatrixElement, and SoGLTextureMatrixElement.
void SoAccumulatedElement::initClass (void) [static]
Initialize relevant common data for all instances, like the type system.
Reimplemented from SoElement.
Reimplemented in SoLightElement, SoMultiTextureMatrixElement, SoProfileElement, SoBBoxModelMatrixElement, SoClipPlaneElement,
SoGLMultiTextureMatrixElement, SoModelMatrixElement, SoBumpMapMatrixElement, SoTextureMatrixElement, SoGLClipPlaneElement,
SoGLModelMatrixElement, and SoGLTextureMatrixElement.
SbBool SoAccumulatedElement::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.
Reimplemented in SoModelMatrixElement.
void SoAccumulatedElement::init (SoState *state) [protected], [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.
Reimplemented in SoProfileElement, SoLightElement, SoMultiTextureMatrixElement, SoBBoxModelMatrixElement, SoClipPlaneElement,
SoGLMultiTextureMatrixElement, SoModelMatrixElement, SoBumpMapMatrixElement, SoTextureMatrixElement, SoGLClipPlaneElement,
SoGLModelMatrixElement, and SoGLTextureMatrixElement.
void SoAccumulatedElement::push (SoState *state) [protected], [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.
Reimplemented in SoProfileElement, SoLightElement, SoBBoxModelMatrixElement, SoMultiTextureMatrixElement, SoClipPlaneElement,
SoGLMultiTextureMatrixElement, SoModelMatrixElement, SoBumpMapMatrixElement, SoGLModelMatrixElement, and SoTextureMatrixElement.
void SoAccumulatedElement::clearNodeIds (void) [protected]
Empty the list of node ids.
void SoAccumulatedElement::addNodeId (const SoNode *constnode) [protected]
Add the node id of node to the list of node ids.
void SoAccumulatedElement::setNodeId (const SoNode *constnode) [protected]
Empty the list of node ids, and add the id of node.
void SoAccumulatedElement::copyNodeIds (const SoAccumulatedElement *copyfrom) [protected]
Convenience method which copies the node ids from copyfrom to this element.
This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
SoElement * SoAccumulatedElement::copyMatchInfo (void) const [protected], [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 SoAccumulatedElement::captureThis (SoState *state) const [protected], [virtual]
Adds the element to the cache.
Reimplemented from SoElement.
Member Data Documentation
SoAccumulatedElement::nodeIds [protected]
Stores the internal list of node id values for nodes accumulated on the stack for the element.
Author
Generated automatically by Doxygen for Coin from the source code.
Version 3.1.3 Wed May 23 2012 SoAccumulatedElement(3)