Open Inventor Reference
SoGLModelMatrixElement Class Reference

Element that stores the current model matrix in GL. More...

#include <Inventor/elements/SoGLModelMatrixElement.h>

Inheritance diagram for SoGLModelMatrixElement:
SoModelMatrixElement SoAccumulatedElement SoElement

Public Member Functions

virtual void init (SoState *state)
 Initializes element. More...
 
virtual void push (SoState *state)
 Override push()/pop() methods so side effects can occur in GL. More...
 
virtual void pop (SoState *state, const SoElement *prevTopElement)
 
- Public Member Functions inherited from SoModelMatrixElement
virtual bool matches (const SoElement *elt) const
 Override standard matches to invalidate on cull-test. More...
 
virtual void print (FILE *fp) const
 Prints element (for debugging) More...
 
- Public Member Functions inherited from SoElement
SoType getTypeId () const
 Returns type identifier for element instance. More...
 
int getStackIndex () const
 Returns the stack index for an element instance. More...
 
void setDepth (int dpth)
 Sets stuff in an element instance. More...
 
void setNext (SoElement *nxt)
 
void setNextInStack (SoElement *nxt)
 
void setNextFree (SoElement *nxt)
 
int getDepth () const
 Returns stuff from element instance. More...
 
SoElementgetNext () const
 
virtual ~SoElement ()
 Destructor. More...
 

Static Public Member Functions

static void initClass ()
 Initializes the SoGLModelMatrixElement class. More...
 
- Static Public Member Functions inherited from SoModelMatrixElement
static void makeIdentity (SoState *state, SoNode *node)
 Sets the model matrix to the identity matrix. More...
 
static void set (SoState *state, SoNode *node, const SbMatrix &matrix)
 Sets the model matrix to the given matrix. More...
 
static void mult (SoState *state, SoNode *node, const SbMatrix &matrix)
 Multiplies the given matrix into the model matrix. More...
 
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. More...
 
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. More...
 
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. More...
 
static const SbMatrixgetCombinedCullMatrix (SoState *state)
 This method gets the model*cullMatrix combined matrix (which is cached by this element). More...
 
static const SbMatrixget (SoState *state)
 Returns current model matrix from the state. More...
 
static const SbMatrixget (SoState *state, bool &isIdent)
 Returns current model matrix from the state, sets given flag to TRUE if matrix is known to be identity. More...
 
static void initClass ()
 Initializes the SoModelMatrixElement class. More...
 
- Static Public Member Functions inherited from SoAccumulatedElement
static void initClass ()
 Initializes the SoAccumulatedElement class. More...
 
- Static Public Member Functions inherited from SoElement
static SoType getClassTypeId ()
 Returns type identifier for SoElement class. More...
 
static void initElements ()
 Initialize ALL Inventor element classes. More...
 
static void initClass ()
 Initializes the SoElement class. More...
 
static int getNumStackIndices ()
 Returns the number of stack indices allocated. More...
 
static SoType getIdFromStackIndex (int stackIndex)
 Returns the id for the element with the given stack index. More...
 

Protected Member Functions

virtual void makeEltIdentity ()
 Overrides SoModelMatrixElement::makeEltIdentity() to print an error message. More...
 
virtual void setElt (const SbMatrix &matrix)
 Sets the matrix in an instance to the given matrix. More...
 
virtual void multElt (const SbMatrix &matrix)
 Multiplies into the matrix in an instance. More...
 
virtual void translateEltBy (const SbVec3f &translation)
 Each of these performs the appropriate operation on the matrix in an instance. More...
 
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: More...
 
virtual void popMatrixElt (const SbMatrix &m)
 
virtual ~SoGLModelMatrixElement ()
 
- Protected Member Functions inherited from SoModelMatrixElement
virtual ~SoModelMatrixElement ()
 
- Protected Member Functions inherited from SoAccumulatedElement
void clearNodeIds ()
 Clears out the list of node id's. More...
 
void addNodeId (const SoNode *node)
 Adds the id of the given node to the current list. More...
 
void setNodeId (const SoNode *node)
 Sets the node id list to JUST the id of the given node. More...
 
virtual SoElementcopyMatchInfo () const
 Create and return a copy of this element; this will copy the nodeId list properly. More...
 
virtual void captureThis (SoState *state) const
 Override normal capture method to capture elements at other depths that we are accumulating with. More...
 
virtual ~SoAccumulatedElement ()
 Destructor. More...
 
- Protected Member Functions inherited from SoElement
 SoElement ()
 Constructor; use typeId.createInstance to create elements. More...
 
void capture (SoState *state) const
 Does whatever is necessary in state to capture this element for caching purposes. More...
 
void setTypeId (SoType id)
 Sets typeId in instance. More...
 
void setStackIndex (int index)
 Sets stackIndex in instance. More...
 
SoElementgetNextInStack () const
 Returns next instance in specific element stack. More...
 
SoElementgetNextFree () const
 Returns next free element in a specific element stack. More...
 

Additional Inherited Members

- Static Protected Member Functions inherited from SoElement
static SoElementgetElement (SoState *state, int stackIndex)
 Returns an instance of an element from the stack with the given index in the given state. More...
 
static const SoElementgetConstElement (SoState *state, int stackIndex)
 Returns a read-only pointer to the top instance in the given element stack. More...
 
static int createStackIndex (SoType id)
 Creates and returns a new stack index. More...
 
- Protected Attributes inherited from SoAccumulatedElement
SbPList nodeIds
 This stores the list of node id's as pointers, since they should be the same length as int32_ts. More...
 
- Static Protected Attributes inherited from SoElement
static int classStackIndex
 Stack index for SoElement class. More...
 

Detailed Description

Overrides the virtual methods on SoModelMatrixElement to send the matrix to GL when necessary.

Note that this class relies on SoModelMatrixElement to store the matrix in the instance. This is less expensive in the long run than asking GL for the matrix when it is needed.

Because GL stores the model and view matrices in one matrix, this has to do a little extra work when setting the model matrix to identity or another matrix. (It has to set the GL model-view matrix correctly.)

Definition at line 80 of file SoGLModelMatrixElement.h.

Constructor & Destructor Documentation

◆ ~SoGLModelMatrixElement()

virtual SoGLModelMatrixElement::~SoGLModelMatrixElement ( )
protectedvirtual

Member Function Documentation

◆ init()

virtual void SoGLModelMatrixElement::init ( SoState state)
virtual

Reimplemented from SoModelMatrixElement.

◆ initClass()

static void SoGLModelMatrixElement::initClass ( )
static

◆ makeEltIdentity()

virtual void SoGLModelMatrixElement::makeEltIdentity ( )
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ multElt()

virtual void SoGLModelMatrixElement::multElt ( const SbMatrix matrix)
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ pop()

virtual void SoGLModelMatrixElement::pop ( SoState state,
const SoElement prevTopElement 
)
virtual

Reimplemented from SoElement.

◆ popMatrixElt()

virtual void SoGLModelMatrixElement::popMatrixElt ( const SbMatrix m)
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ push()

virtual void SoGLModelMatrixElement::push ( SoState state)
virtual

Reimplemented from SoModelMatrixElement.

◆ pushMatrixElt()

virtual SbMatrix SoGLModelMatrixElement::pushMatrixElt ( )
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ rotateEltBy()

virtual void SoGLModelMatrixElement::rotateEltBy ( const SbRotation translation)
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ scaleEltBy()

virtual void SoGLModelMatrixElement::scaleEltBy ( const SbVec3f scaleFactor)
protectedvirtual

Reimplemented from SoModelMatrixElement.

◆ setElt()

virtual void SoGLModelMatrixElement::setElt ( const SbMatrix matrix)
protectedvirtual

Assumes that the passed matrix contains the correct combination of view and model matrices.

Reimplemented from SoModelMatrixElement.

◆ translateEltBy()

virtual void SoGLModelMatrixElement::translateEltBy ( const SbVec3f translation)
protectedvirtual

Reimplemented from SoModelMatrixElement.


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