Element that stores the current model matrix - the cumulative transformation applied to subsequent shapes. More...

#include <Inventor/elements/SoModelMatrixElement.h>

Inheritance diagram for SoModelMatrixElement:

Public Member Functions
virtual void	init (SoState *state)
	Initializes element.
virtual SbBool	matches (const SoElement *elt) const
	Override standard matches to invalidate on cull-test.
virtual void	push (SoState *state)
	Overrides push() method to copy values from next instance in the stack.
virtual void	print (FILE *fp) const
	Prints element (for debugging)
Static Public Member Functions
static void	makeIdentity (SoState state, SoNode node)
	Sets the model matrix to the identity matrix.
static void	set (SoState state, SoNode node, const SbMatrix &matrix)
	Sets the model matrix to the given matrix.
static void	mult (SoState state, SoNode node, const SbMatrix &matrix)
	Multiplies the given matrix into the model matrix.
static void	translateBy (SoState state, SoNode node, const SbVec3f &translation)
	Each of these multiplies a matrix that performs the specified transformation into the model matrix.
static void	rotateBy (SoState state, SoNode node, const SbRotation &rotation)
static void	scaleBy (SoState state, SoNode node, 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	setCullMatrix (SoState state, SoNode node, const SbMatrix &matrix)
	Sets the transformation that defines the volume that view-volume culling should be tested against.
static const SbMatrix &	getCombinedCullMatrix (SoState *state)
	This method gets the model*cullMatrix combined matrix (which is cached by this element).
static const SbMatrix &	get (SoState *state)
	Returns current model matrix from the state.
static const SbMatrix &	get (SoState *state, SbBool &isIdent)
	Returns current model matrix from the state, sets given flag to TRUE if matrix is known to be identity.
static void	initClass ()
	Initializes the SoModelMatrixElement class.
Protected Member Functions
virtual void	makeEltIdentity ()
	Sets the matrix in an instance to identity.
virtual void	setElt (const SbMatrix &matrix)
	Sets the matrix in an instance to given matrix.
virtual void	multElt (const SbMatrix &matrix)
	Multiplies into the matrix in an instance.
virtual void	translateEltBy (const SbVec3f &translation)
	Each of these performs the appropriate operation on the matrix in an instance.
virtual void	rotateEltBy (const SbRotation &translation)
virtual void	scaleEltBy (const SbVec3f &scaleFactor)
virtual SbMatrix	pushMatrixElt ()
	virtual methods for push/pop so GL element can Do The Right Thing:
virtual void	popMatrixElt (const SbMatrix &m)
virtual	~SoModelMatrixElement ()
Friends
class	SoLocalBBoxMatrixElement

Detailed Description

Because the matrix is cumulative, this class is derived from SoAccumulatedElement. The set() method replaces the current matrix, while all the others (mult(), translateBy(), etc.) multiply into it. Node id's of the nodes that affect the element are accumulated properly.

This element also stores the current view-volume culling transformation, which is normally the view*projection matrices (set by cameras), but which may be modified by sophisticated culling schemes.

Definition at line 80 of file SoModelMatrixElement.h.

Constructor & Destructor Documentation

virtual SoModelMatrixElement::~SoModelMatrixElement ( ) [protected, virtual]

Member Function Documentation

static const SbMatrix& SoModelMatrixElement::get ( SoState * state ) [static]

static const SbMatrix& SoModelMatrixElement::get	(	SoState *	state,
		SbBool &	isIdent
	)		`[static]`

static const SbMatrix& SoModelMatrixElement::getCombinedCullMatrix ( SoState * state ) [static]

virtual void SoModelMatrixElement::init ( SoState * state ) [virtual]

Reimplemented from SoElement.

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::initClass ( ) [static]

Reimplemented from SoAccumulatedElement.

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

virtual void SoModelMatrixElement::makeEltIdentity ( ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::makeIdentity	(	SoState *	state,
		SoNode *	node
	)		`[static]`

virtual SbBool SoModelMatrixElement::matches ( const SoElement * elt ) const [virtual]

Reimplemented from SoAccumulatedElement.

static void SoModelMatrixElement::mult	(	SoState *	state,
		SoNode *	node,
		const SbMatrix &	matrix
	)		`[static]`

virtual void SoModelMatrixElement::multElt ( const SbMatrix & matrix ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::popMatrix	(	SoState *	state,
		const SbMatrix &	m
	)		`[static]`

virtual void SoModelMatrixElement::popMatrixElt ( const SbMatrix & m ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

virtual void SoModelMatrixElement::print ( FILE * fp ) const [virtual]

Reimplemented from SoAccumulatedElement.

virtual void SoModelMatrixElement::push ( SoState * state ) [virtual]

Reimplemented from SoElement.

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static SbMatrix SoModelMatrixElement::pushMatrix ( SoState * state ) [static]

WARNING! For proper caching behavior, the matrix returned by ::pushMatrix() must be used ONLY as a later argument to ::popMatrix(), and you must NOT modify the matrix between the push and the pop. If you need the matrix for any other reason, you MUST use the ::get() routine.

virtual SbMatrix SoModelMatrixElement::pushMatrixElt ( ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::rotateBy	(	SoState *	state,
		SoNode *	node,
		const SbRotation &	rotation
	)		`[static]`

virtual void SoModelMatrixElement::rotateEltBy ( const SbRotation & translation ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::scaleBy	(	SoState *	state,
		SoNode *	node,
		const SbVec3f &	scaleFactor
	)		`[static]`

virtual void SoModelMatrixElement::scaleEltBy ( const SbVec3f & scaleFactor ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::set	(	SoState *	state,
		SoNode *	node,
		const SbMatrix &	matrix
	)		`[static]`

static void SoModelMatrixElement::setCullMatrix	(	SoState *	state,
		SoNode *	node,
		const SbMatrix &	matrix
	)		`[static]`

virtual void SoModelMatrixElement::setElt ( const SbMatrix & matrix ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

static void SoModelMatrixElement::translateBy	(	SoState *	state,
		SoNode *	node,
		const SbVec3f &	translation
	)		`[static]`

virtual void SoModelMatrixElement::translateEltBy ( const SbVec3f & translation ) [protected, virtual]

Reimplemented in SoBBoxModelMatrixElement, and SoGLModelMatrixElement.

Friends And Related Function Documentation

friend class SoLocalBBoxMatrixElement [friend]

Definition at line 179 of file SoModelMatrixElement.h.

Member Data Documentation

unsigned int SoModelMatrixElement::haveCullMatrix

Definition at line 175 of file SoModelMatrixElement.h.

unsigned int SoModelMatrixElement::haveModelCull

Definition at line 176 of file SoModelMatrixElement.h.

unsigned int SoModelMatrixElement::isModelIdentity

Definition at line 174 of file SoModelMatrixElement.h.

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

MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/elements/SoModelMatrixElement.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation