Element that stores the transformation matrix from object space to some local coordinate space during application of an SoGetBoundingBoxAction. More...

#include <Inventor/elements/SoLocalBBoxMatrixElement.h>

Inheritance diagram for SoLocalBBoxMatrixElement:

Public Member Functions
virtual void	init (SoState *state)
	Initializes element.

virtual void	push (SoState *state)
	Overrides push() method to copy values from next instance in the stack.

virtual bool	matches (const SoElement *elt) const
	Prints error message and returns FALSE (see class header comment)

virtual SoElement *	copyMatchInfo () const
	Create and return a copy of this element.

virtual void	print (FILE *fp) const
	Prints element (for debugging)

Public Member Functions inherited from SoElement
virtual void	init (SoState *state)
	Initializes element.

virtual void	push (SoState *state)
	Pushes/pops element.

virtual void	pop (SoState state, const SoElement prevTopElement)

virtual void	print (FILE *fp) const
	Prints element (for debugging)

virtual bool	matches (const SoElement *elt) const =0
	Returns TRUE if the element matches another element (of the same class, presumably) with respect to cache validity.

virtual SoElement *	copyMatchInfo () const =0
	Create a copy that we can put in a cache used list and call matches() on later.

SoType	getTypeId () const
	Returns type identifier for element instance.

int	getStackIndex () const
	Returns the stack index for an element instance.

void	setDepth (int dpth)
	Sets stuff in an element instance.

void	setNext (SoElement *nxt)

void	setNextInStack (SoElement *nxt)

void	setNextFree (SoElement *nxt)

int	getDepth () const
	Returns stuff from element instance.

SoElement *	getNext () const

virtual	~SoElement ()
	Destructor.

Static Public Member Functions
static void	makeIdentity (SoState *state)
	Sets the local matrix to the identity matrix.

static void	set (SoState *state, const SbMatrix &matrix)
	Sets the local matrix to the given matrix.

static void	mult (SoState *state, const SbMatrix &matrix)
	Multiplies the given matrix into the local matrix.

static void	translateBy (SoState *state, const SbVec3f &translation)
	Each of these multiplies a matrix that performs the specified transformation into the local matrix.

static void	rotateBy (SoState *state, const SbRotation &rotation)

static void	scaleBy (SoState *state, const SbVec3f &scaleFactor)

static SbMatrix	pushMatrix (SoState *state)
	These methods are used by the TransformSeparator node.

static void	popMatrix (SoState *state, const SbMatrix &m)

static void	resetAll (SoState *state)
	Resets all current instances in the state to identity.

static const SbMatrix &	get (SoState *state)
	Returns current matrix from the state.

static void	initClass ()
	Initializes the SoLocalBBoxMatrixElement class.

Static Public Member Functions inherited from SoElement
static SoType	getClassTypeId ()
	Returns type identifier for SoElement class.

static void	initElements ()
	Initialize ALL Inventor element classes.

static void	initClass ()
	Initializes the SoElement class.

static int	getNumStackIndices ()
	Returns the number of stack indices allocated.

static SoType	getIdFromStackIndex (int stackIndex)
	Returns the id for the element with the given stack index.

Protected Member Functions
virtual	~SoLocalBBoxMatrixElement ()

Protected Member Functions inherited from SoElement
	SoElement ()
	Constructor; use typeId.createInstance to create elements.

void	capture (SoState *state) const
	Does whatever is necessary in state to capture this element for caching purposes.

virtual void	captureThis (SoState *state) const
	Really captures this element, once it has been determined that a cache is open to capture it.

void	setTypeId (SoType id)
	Sets typeId in instance.

void	setStackIndex (int index)
	Sets stackIndex in instance.

SoElement *	getNextInStack () const
	Returns next instance in specific element stack.

SoElement *	getNextFree () const
	Returns next free element in a specific element stack.

Protected Attributes
SbMatrix	localMatrix

Additional Inherited Members
Static Protected Member Functions inherited from SoElement
static SoElement *	getElement (SoState *state, int stackIndex)
	Returns an instance of an element from the stack with the given index in the given state.

static const SoElement *	getConstElement (SoState *state, int stackIndex)
	Returns a read-only pointer to the top instance in the given element stack.

static int	createStackIndex (SoType id)
	Creates and returns a new stack index.

Static Protected Attributes inherited from SoElement
static int	classStackIndex
	Stack index for SoElement class.

Detailed Description

This element is needed to allow separators (and other caching nodes) to store cached bounding boxes in their own local space. Shapes that extend the current bounding box computed by the action use this matrix to transform the bounding box into local space. Separators cache this box, then transform it into the next local space up the hierarchy.

Because this element is set to identity by separators before traversing their children, it can never have an affect on any caching separator that it is not under. Therefore, it should never be tested for cache invalidation, so its matches() method prints an error message and returns FALSE. It also means that it does not have to save node id's so there are no nodes passed in to any of the methods.

Definition at line 84 of file SoLocalBBoxMatrixElement.h.

Constructor & Destructor Documentation

◆ ~SoLocalBBoxMatrixElement()

virtual SoLocalBBoxMatrixElement::~SoLocalBBoxMatrixElement ( )

protectedvirtual

Member Function Documentation

◆ copyMatchInfo()

virtual SoElement * SoLocalBBoxMatrixElement::copyMatchInfo ( ) const

virtual

Implements SoElement.

◆ get()

static const SbMatrix & SoLocalBBoxMatrixElement::get ( SoState * state )

static

◆ init()

virtual void SoLocalBBoxMatrixElement::init ( SoState * state )

virtual

Reimplemented from SoElement.

◆ initClass()

static void SoLocalBBoxMatrixElement::initClass ( )

static

◆ makeIdentity()

static void SoLocalBBoxMatrixElement::makeIdentity ( SoState * state )

static

◆ matches()

virtual bool SoLocalBBoxMatrixElement::matches ( const SoElement * elt ) const

virtual

Implements SoElement.

◆ mult()

static void SoLocalBBoxMatrixElement::mult	(	SoState *	state,
		const SbMatrix &	matrix
	)

static

◆ popMatrix()

static void SoLocalBBoxMatrixElement::popMatrix	(	SoState *	state,
		const SbMatrix &	m
	)

static

◆ print()

virtual void SoLocalBBoxMatrixElement::print ( FILE * fp ) const

virtual

Reimplemented from SoElement.

◆ push()

virtual void SoLocalBBoxMatrixElement::push ( SoState * state )

virtual

Reimplemented from SoElement.

◆ pushMatrix()

static SbMatrix SoLocalBBoxMatrixElement::pushMatrix ( SoState * state )

static

◆ resetAll()

static void SoLocalBBoxMatrixElement::resetAll ( SoState * state )

static

◆ rotateBy()

static void SoLocalBBoxMatrixElement::rotateBy	(	SoState *	state,
		const SbRotation &	rotation
	)

static

◆ scaleBy()

static void SoLocalBBoxMatrixElement::scaleBy	(	SoState *	state,
		const SbVec3f &	scaleFactor
	)

static

◆ set()

static void SoLocalBBoxMatrixElement::set	(	SoState *	state,
		const SbMatrix &	matrix
	)

static

◆ translateBy()

static void SoLocalBBoxMatrixElement::translateBy	(	SoState *	state,
		const SbVec3f &	translation
	)

static

Member Data Documentation

◆ localMatrix

SbMatrix SoLocalBBoxMatrixElement::localMatrix

protected

Definition at line 134 of file SoLocalBBoxMatrixElement.h.

The documentation for this class was generated from the following file:

C:/jh/mevislab/4.0.2_1/build/MeVis/ThirdParty/Sources/Inventor/include/Inventor/elements/SoLocalBBoxMatrixElement.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~SoLocalBBoxMatrixElement()

Member Function Documentation

◆ copyMatchInfo()

◆ get()

◆ init()

◆ initClass()

◆ makeIdentity()

◆ matches()

◆ mult()

◆ popMatrix()

◆ print()

◆ push()

◆ pushMatrix()

◆ resetAll()

◆ rotateBy()

◆ scaleBy()

◆ set()

◆ translateBy()

Member Data Documentation

◆ localMatrix