A Transform is a group node for which all children are transformed by a 4x4 matrix. More...
Inheritance diagram for osg::Transform:
Collaboration diagram for osg::Transform:
Public Types | |
| enum | ReferenceFrame { RELATIVE_RF, ABSOLUTE_RF, ABSOLUTE_RF_INHERIT_VIEWPOINT } |
 Public Types inherited from osg::Node | |
| typedef std::vector< Group * > | ParentList |
| A vector of osg::Group pointers which is used to store the parent(s) of node. More... | |
| typedef unsigned int | NodeMask |
| This is a set of bits (flags) that represent the Node. More... | |
| typedef std::vector< std::string > | DescriptionList |
| A vector of std::string's which are used to describe the object. More... | |
| Public Types inherited from osg::Object | |
| enum | DataVariance { DYNAMIC, STATIC, UNSPECIFIED } |
Public Member Functions | |
| Transform (const Transform &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
| Copy constructor using CopyOp to manage deep vs shallow copy. More... | |
| META_Node (osg, Transform) | |
| virtual Transform * | asTransform () |
| Convert 'this' into a Transform pointer if Node is a Transform, otherwise return 0. More... | |
| virtual const Transform * | asTransform () const |
| convert 'const this' into a const Transform pointer if Node is a Transform, otherwise return 0. More... | |
| virtual MatrixTransform * | asMatrixTransform () |
| virtual const MatrixTransform * | asMatrixTransform () const |
| virtual PositionAttitudeTransform * | asPositionAttitudeTransform () |
| virtual const PositionAttitudeTransform * | asPositionAttitudeTransform () const |
| void | setReferenceFrame (ReferenceFrame rf) |
| Set the transform's ReferenceFrame, either to be relative to its parent reference frame, or relative to an absolute coordinate frame. More... | |
| ReferenceFrame | getReferenceFrame () const |
| virtual bool | computeLocalToWorldMatrix (Matrix &matrix, NodeVisitor *) const |
| virtual bool | computeWorldToLocalMatrix (Matrix &matrix, NodeVisitor *) const |
| virtual BoundingSphere | computeBound () const |
| Overrides Group's computeBound. More... | |
| Public Member Functions inherited from osg::Group | |
| Group (const Group &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
| Copy constructor using CopyOp to manage deep vs shallow copy. More... | |
| META_Node (osg, Group) | |
| virtual Group * | asGroup () |
| convert 'this' into a Group pointer if Node is a Group, otherwise return 0. More... | |
| virtual const Group * | asGroup () const |
| convert 'const this' into a const Group pointer if Node is a Group, otherwise return 0. More... | |
| virtual void | traverse (NodeVisitor &nv) |
| Traverse downwards : calls children's accept method with NodeVisitor. More... | |
| virtual bool | addChild (Node *child) |
| Add Node to Group. More... | |
| template<class T > | |
| bool | addChild (const ref_ptr< T > &child) |
| virtual bool | insertChild (unsigned int index, Node *child) |
| Insert Node to Group at specific location. More... | |
| template<class T > | |
| bool | insertChild (unsigned int index, const ref_ptr< T > &child) |
| virtual bool | removeChild (Node *child) |
| Remove Node from Group. More... | |
| template<class T > | |
| bool | removeChild (const ref_ptr< T > &child) |
| bool | removeChild (unsigned int pos, unsigned int numChildrenToRemove=1) |
| Remove Node from Group. More... | |
| virtual bool | removeChildren (unsigned int pos, unsigned int numChildrenToRemove) |
| Remove children from Group. More... | |
| virtual bool | replaceChild (Node *origChild, Node *newChild) |
| Replace specified child Node with another Node. More... | |
| template<class T , class R > | |
| bool | replaceChild (const ref_ptr< T > &origChild, const ref_ptr< R > &newChild) |
| virtual unsigned int | getNumChildren () const |
| Return the number of children nodes. More... | |
| virtual bool | setChild (unsigned int i, Node *node) |
| Set child node at position i. More... | |
| Node * | getChild (unsigned int i) |
| Return child node at position i. More... | |
| const Node * | getChild (unsigned int i) const |
| Return child node at position i. More... | |
| bool | containsNode (const Node *node) const |
| Return true if node is contained within Group. More... | |
| template<class T > | |
| bool | containsNode (const ref_ptr< T > &node) const |
| unsigned int | getChildIndex (const Node *node) const |
| Get the index number of child, return a value between 0 and _children.size()-1 if found, if not found then return _children.size(). | |
| virtual void | setThreadSafeRefUnref (bool threadSafe) |
| Set whether to use a mutex to ensure ref() and unref() are thread safe. More... | |
| virtual void | resizeGLObjectBuffers (unsigned int maxSize) |
| Resize any per context GLObject buffers to specified size. More... | |
| virtual void | releaseGLObjects (osg::State *=0) const |
| If State is non-zero, this function releases any associated OpenGL objects for the specified graphics context. More... | |
| Public Member Functions inherited from osg::Node | |
| Node () | |
| Construct a node. More... | |
| Node (const Node &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
| Copy constructor using CopyOp to manage deep vs shallow copy. More... | |
| virtual Object * | cloneType () const |
| clone an object of the same type as the node. More... | |
| virtual Object * | clone (const CopyOp ©op) const |
| return a clone of a node, with Object* return type. More... | |
| virtual bool | isSameKindAs (const Object *obj) const |
| return true if this and obj are of the same kind of object. More... | |
| virtual const char * | libraryName () const |
| return the name of the node's library. More... | |
| virtual const char * | className () const |
| return the name of the node's class type. More... | |
| virtual Node * | asNode () |
| Convert 'this' into a Node pointer if Object is a Node, otherwise return 0. More... | |
| virtual const Node * | asNode () const |
| convert 'const this' into a const Node pointer if Object is a Node, otherwise return 0. More... | |
| virtual Drawable * | asDrawable () |
| convert 'this' into a Drawable pointer if Node is a Drawable, otherwise return 0. More... | |
| virtual const Drawable * | asDrawable () const |
| convert 'const this' into a const Drawable pointer if Node is a Drawable, otherwise return 0. More... | |
| virtual Geometry * | asGeometry () |
| convert 'this' into a Geometry pointer if Node is a Geometry, otherwise return 0. More... | |
| virtual const Geometry * | asGeometry () const |
| convert 'const this' into a const Geometry pointer if Node is a Geometry, otherwise return 0. More... | |
| virtual Camera * | asCamera () |
| Convert 'this' into a Camera pointer if Node is a Camera, otherwise return 0. More... | |
| virtual const Camera * | asCamera () const |
| convert 'const this' into a const Camera pointer if Node is a Camera, otherwise return 0. More... | |
| virtual Switch * | asSwitch () |
| Convert 'this' into a Switch pointer if Node is a Switch, otherwise return 0. More... | |
| virtual const Switch * | asSwitch () const |
| convert 'const this' into a const Switch pointer if Node is a Switch, otherwise return 0. More... | |
| virtual Geode * | asGeode () |
| Convert 'this' into a Geode pointer if Node is a Geode, otherwise return 0. More... | |
| virtual const Geode * | asGeode () const |
| convert 'const this' into a const Geode pointer if Node is a Geode, otherwise return 0. More... | |
| virtual osgTerrain::Terrain * | asTerrain () |
| Convert 'this' into a Transform pointer if Node is a Terrain, otherwise return 0. More... | |
| virtual const osgTerrain::Terrain * | asTerrain () const |
| convert 'const this' into a const Terrain pointer if Node is a Terrain, otherwise return 0. More... | |
| virtual void | accept (NodeVisitor &nv) |
| Visitor Pattern : calls the apply method of a NodeVisitor with this node's type. More... | |
| virtual void | ascend (NodeVisitor &nv) |
| Traverse upwards : calls parents' accept method with NodeVisitor. More... | |
| const ParentList & | getParents () const |
| Get the parent list of node. More... | |
| ParentList | getParents () |
| Get the a copy of parent list of node. More... | |
| Group * | getParent (unsigned int i) |
| const Group * | getParent (unsigned int i) const |
| Get a single const parent of node. More... | |
| unsigned int | getNumParents () const |
| Get the number of parents of node. More... | |
| NodePathList | getParentalNodePaths (osg::Node *haltTraversalAtNode=0) const |
| Get the list of node paths parent paths. More... | |
| MatrixList | getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const |
| Get the list of matrices that transform this node from local coordinates to world coordinates. More... | |
| void | setUpdateCallback (Callback *nc) |
| Set update node callback, called during update traversal. More... | |
| template<class T > | |
| void | setUpdateCallback (const ref_ptr< T > &nc) |
| Callback * | getUpdateCallback () |
| Get update node callback, called during update traversal. More... | |
| const Callback * | getUpdateCallback () const |
| Get const update node callback, called during update traversal. More... | |
| void | addUpdateCallback (Callback *nc) |
| Convenience method that sets the update callback of the node if it doesn't exist, or nest it into the existing one. More... | |
| template<class T > | |
| void | addUpdateCallback (const ref_ptr< T > &nc) |
| void | removeUpdateCallback (Callback *nc) |
| Convenience method that removes a given callback from a node, even if that callback is nested. More... | |
| template<class T > | |
| void | removeUpdateCallback (const ref_ptr< T > &nc) |
| unsigned int | getNumChildrenRequiringUpdateTraversal () const |
| Get the number of Children of this node which require Update traversal, since they have an Update Callback attached to them or their children. More... | |
| void | setEventCallback (Callback *nc) |
| Set event node callback, called during event traversal. More... | |
| template<class T > | |
| void | setEventCallback (const ref_ptr< T > &nc) |
| Callback * | getEventCallback () |
| Get event node callback, called during event traversal. More... | |
| const Callback * | getEventCallback () const |
| Get const event node callback, called during event traversal. More... | |
| void | addEventCallback (Callback *nc) |
| Convenience method that sets the event callback of the node if it doesn't exist, or nest it into the existing one. More... | |
| template<class T > | |
| void | addEventCallback (const ref_ptr< T > &nc) |
| void | removeEventCallback (Callback *nc) |
| Convenience method that removes a given callback from a node, even if that callback is nested. More... | |
| template<class T > | |
| void | removeEventCallback (const ref_ptr< T > &nc) |
| unsigned int | getNumChildrenRequiringEventTraversal () const |
| Get the number of Children of this node which require Event traversal, since they have an Event Callback attached to them or their children. More... | |
| void | setCullCallback (Callback *nc) |
| Set cull node callback, called during cull traversal. More... | |
| template<class T > | |
| void | setCullCallback (const ref_ptr< T > &nc) |
| Callback * | getCullCallback () |
| Get cull node callback, called during cull traversal. More... | |
| const Callback * | getCullCallback () const |
| Get const cull node callback, called during cull traversal. More... | |
| void | addCullCallback (Callback *nc) |
| Convenience method that sets the cull callback of the node if it doesn't exist, or nest it into the existing one. More... | |
| template<class T > | |
| void | addCullCallback (const ref_ptr< T > &nc) |
| void | removeCullCallback (Callback *nc) |
| Convenience method that removes a given callback from a node, even if that callback is nested. More... | |
| template<class T > | |
| void | removeCullCallback (const ref_ptr< T > &nc) |
| void | setCullingActive (bool active) |
| Set the view frustum/small feature culling of this node to be active or inactive. More... | |
| bool | getCullingActive () const |
| Get the view frustum/small feature _cullingActive flag for this node. More... | |
| unsigned int | getNumChildrenWithCullingDisabled () const |
| Get the number of Children of this node which have culling disabled. More... | |
| bool | isCullingActive () const |
| Return true if this node can be culled by view frustum, occlusion or small feature culling during the cull traversal. More... | |
| unsigned int | getNumChildrenWithOccluderNodes () const |
| Get the number of Children of this node which are or have OccluderNode's. More... | |
| bool | containsOccluderNodes () const |
| return true if this node is an OccluderNode or the subgraph below this node are OccluderNodes. More... | |
| void | setNodeMask (NodeMask nm) |
| Set the node mask. More... | |
| NodeMask | getNodeMask () const |
| Get the node Mask. More... | |
| void | setStateSet (osg::StateSet *stateset) |
| Set the node's StateSet. More... | |
| template<class T > | |
| void | setStateSet (const osg::ref_ptr< T > &stateset) |
| osg::StateSet * | getOrCreateStateSet () |
| return the node's StateSet, if one does not already exist create it set the node and return the newly created StateSet. More... | |
| osg::StateSet * | getStateSet () |
| Return the node's StateSet. More... | |
| const osg::StateSet * | getStateSet () const |
| Return the node's const StateSet. More... | |
| void | setDescriptions (const DescriptionList &descriptions) |
| Set the list of string descriptions. More... | |
| DescriptionList & | getDescriptions () |
| Get the description list of the node. More... | |
| const DescriptionList & | getDescriptions () const |
| Get the const description list of the const node. More... | |
| const std::string & | getDescription (unsigned int i) const |
| Get a single const description of the const node. More... | |
| std::string & | getDescription (unsigned int i) |
| Get a single description of the node. More... | |
| unsigned int | getNumDescriptions () const |
| Get the number of descriptions of the node. More... | |
| void | addDescription (const std::string &desc) |
| Add a description string to the node. More... | |
| void | setInitialBound (const osg::BoundingSphere &bsphere) |
| Set the initial bounding volume to use when computing the overall bounding volume. More... | |
| const BoundingSphere & | getInitialBound () const |
| Set the initial bounding volume to use when computing the overall bounding volume. More... | |
| void | dirtyBound () |
| Mark this node's bounding sphere dirty. More... | |
| const BoundingSphere & | getBound () const |
| void | setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback) |
| Set the compute bound callback to override the default computeBound. More... | |
| template<class T > | |
| void | setComputeBoundingSphereCallback (const ref_ptr< T > &callback) |
| ComputeBoundingSphereCallback * | getComputeBoundingSphereCallback () |
| Get the compute bound callback. More... | |
| const ComputeBoundingSphereCallback * | getComputeBoundingSphereCallback () const |
| Get the const compute bound callback. More... | |
| Public Member Functions inherited from osg::Object | |
| Object () | |
| Construct an object. More... | |
| Object (bool threadSafeRefUnref) | |
| Object (const Object &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
| Copy constructor, optional CopyOp object can be used to control shallow vs deep copying of dynamic data. More... | |
| std::string | getCompoundClassName () const |
| return the compound class name that combines the library name and class name. More... | |
| virtual NodeVisitor * | asNodeVisitor () |
| Convert 'this' into a NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. More... | |
| virtual const NodeVisitor * | asNodeVisitor () const |
| convert 'const this' into a const NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. More... | |
| virtual StateAttribute * | asStateAttribute () |
| Convert 'this' into a StateAttribute pointer if Object is a StateAttribute, otherwise return 0. More... | |
| virtual const StateAttribute * | asStateAttribute () const |
| convert 'const this' into a const StateAttribute pointer if Object is a StateAttribute, otherwise return 0. More... | |
| virtual Uniform * | asUniform () |
| Convert 'this' into a Uniform pointer if Object is a Uniform, otherwise return 0. More... | |
| virtual const Uniform * | asUniform () const |
| convert 'const this' into a const Uniform pointer if Object is a Uniform, otherwise return 0. More... | |
| virtual void | setName (const std::string &name) |
| Set the name of object using C++ style string. More... | |
| void | setName (const char *name) |
| Set the name of object using a C style string. More... | |
| const std::string & | getName () const |
| Get the name of object. More... | |
| void | setDataVariance (DataVariance dv) |
| Set the data variance of this object. More... | |
| DataVariance | getDataVariance () const |
| Get the data variance of this object. More... | |
| virtual void | computeDataVariance () |
| Compute the DataVariance based on an assessment of callback etc. More... | |
| void | setUserDataContainer (osg::UserDataContainer *udc) |
| set the UserDataContainer object. More... | |
| template<class T > | |
| void | setUserDataContainer (const ref_ptr< T > &udc) |
| osg::UserDataContainer * | getUserDataContainer () |
| get the UserDataContainer attached to this object. More... | |
| const osg::UserDataContainer * | getUserDataContainer () const |
| get the const UserDataContainer attached to this object. More... | |
| osg::UserDataContainer * | getOrCreateUserDataContainer () |
| Convenience method that returns the UserDataContainer, and if one doesn't already exist creates and assigns a DefaultUserDataContainer to the Object and then return this new UserDataContainer. More... | |
| virtual void | setUserData (Referenced *obj) |
| Set user data, data must be subclassed from Referenced to allow automatic memory handling. More... | |
| template<class T > | |
| void | setUserData (const ref_ptr< T > &ud) |
| virtual Referenced * | getUserData () |
| Get user data. More... | |
| virtual const Referenced * | getUserData () const |
| Get const user data. More... | |
| template<typename T > | |
| bool | getUserValue (const std::string &name, T &value) const |
| Convenience method that casts the named UserObject to osg::TemplateValueObject<T> and gets the value. More... | |
| template<typename T > | |
| void | setUserValue (const std::string &name, const T &value) |
| Convenience method that creates the osg::TemplateValueObject<T> to store the specified value and adds it as a named UserObject. More... | |
| template<typename T > | |
| BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool | getUserValue (const std::string &name, T &value) const |
| provide implementation of osg::Object::getUserValue(..) template | |
| Public Member Functions inherited from osg::Referenced | |
| Referenced (bool threadSafeRefUnref) | |
| Referenced (const Referenced &) | |
| Referenced & | operator= (const Referenced &) |
| bool | getThreadSafeRefUnref () const |
| Get whether a mutex is used to ensure ref() and unref() are thread safe. More... | |
| bool | getThreadSafeRefUnref () const |
| OpenThreads::Mutex * | getRefMutex () const |
| Get the mutex used to ensure thread safety of ref()/unref(). More... | |
| OpenThreads::Mutex * | getRefMutex () const |
| int | ref () const |
| Increment the reference count by one, indicating that this object has another pointer which is referencing it. More... | |
| int | unref () const |
| Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More... | |
| int | unref_nodelete () const |
| Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More... | |
| int | referenceCount () const |
| Return the number of pointers currently referencing this object. More... | |
| ObserverSet * | getObserverSet () const |
| Get the ObserverSet if one is attached, otherwise return NULL. More... | |
| ObserverSet * | getOrCreateObserverSet () const |
| Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More... | |
| void | addObserver (Observer *observer) const |
| Add a Observer that is observing this object, notify the Observer when this object gets deleted. More... | |
| void | removeObserver (Observer *observer) const |
| Remove Observer that is observing this object. More... | |
Protected Attributes | |
| ReferenceFrame | _referenceFrame |
| Protected Attributes inherited from osg::Group | |
| NodeList | _children |
| Protected Attributes inherited from osg::Node | |
| BoundingSphere | _initialBound |
| ref_ptr< ComputeBoundingSphereCallback > | _computeBoundCallback |
| BoundingSphere | _boundingSphere |
| bool | _boundingSphereComputed |
| ParentList | _parents |
| ref_ptr< Callback > | _updateCallback |
| unsigned int | _numChildrenRequiringUpdateTraversal |
| ref_ptr< Callback > | _eventCallback |
| unsigned int | _numChildrenRequiringEventTraversal |
| ref_ptr< Callback > | _cullCallback |
| bool | _cullingActive |
| unsigned int | _numChildrenWithCullingDisabled |
| unsigned int | _numChildrenWithOccluderNodes |
| NodeMask | _nodeMask |
| ref_ptr< StateSet > | _stateset |
| Protected Attributes inherited from osg::Object | |
| std::string | _name |
| DataVariance | _dataVariance |
| osg::UserDataContainer * | _userDataContainer |
| Protected Attributes inherited from osg::Referenced | |
| OpenThreads::AtomicPtr | _observerSet |
| OpenThreads::Atomic | _refCount |
| OpenThreads::Mutex * | _refMutex |
| int | _refCount |
| void * | _observerSet |
Additional Inherited Members | |
| Static Public Member Functions inherited from osg::Referenced | |
| static OpenThreads::Mutex * | getGlobalReferencedMutex () |
| Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More... | |
| static void | setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting) |
| Set whether reference counting should use a mutex for thread safe reference counting. More... | |
| static bool | getThreadSafeReferenceCounting () |
| Get whether reference counting is active. More... | |
| static void | setDeleteHandler (DeleteHandler *handler) |
| Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More... | |
| static DeleteHandler * | getDeleteHandler () |
| Get a DeleteHandler. More... | |
| Protected Member Functions inherited from osg::Group | |
| virtual void | childRemoved (unsigned int, unsigned int) |
| virtual void | childInserted (unsigned int) |
| Protected Member Functions inherited from osg::Node | |
| virtual | ~Node () |
| Node destructor. More... | |
| void | addParent (osg::Group *parent) |
| void | removeParent (osg::Group *parent) |
| void | setNumChildrenRequiringUpdateTraversal (unsigned int num) |
| void | setNumChildrenRequiringEventTraversal (unsigned int num) |
| void | setNumChildrenWithCullingDisabled (unsigned int num) |
| void | setNumChildrenWithOccluderNodes (unsigned int num) |
| Protected Member Functions inherited from osg::Object | |
| virtual | ~Object () |
| Object destructor. More... | |
| Protected Member Functions inherited from osg::Referenced | |
| void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
| void | deleteUsingDeleteHandler () const |
Detailed Description
A Transform is a group node for which all children are transformed by a 4x4 matrix.
It is often used for positioning objects within a scene, producing trackball functionality or for animation.
Transform itself does not provide set/get functions, only the interface for defining what the 4x4 transformation is. Subclasses, such as MatrixTransform and PositionAttitudeTransform support the use of an osg::Matrix or a osg::Vec3/osg::Quat respectively.
Note: If the transformation matrix scales the subgraph then the normals of the underlying geometry will need to be renormalized to be unit vectors once more. This can be done transparently through OpenGL's use of either GL_NORMALIZE and GL_RESCALE_NORMAL modes. For further background reading see the glNormalize documentation in the OpenGL Reference Guide (the blue book). To enable it in the OSG, you simply need to attach a local osg::StateSet to the osg::Transform, and set the appropriate mode to ON via stateset->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
Constructor & Destructor Documentation
◆ Transform()
Copy constructor using CopyOp to manage deep vs shallow copy.
Member Function Documentation
◆ asTransform() [1/2]
|
inlinevirtual |
◆ asTransform() [2/2]
|
inlinevirtual |
◆ computeBound()
|
virtual |
Overrides Group's computeBound.
There is no need to override in subclasses from osg::Transform since this computeBound() uses the underlying matrix (calling computeMatrix if required).
Reimplemented from osg::Group.
Reimplemented in osg::AutoTransform.
◆ setReferenceFrame()
| void osg::Transform::setReferenceFrame | ( | ReferenceFrame | rf | ) |
Set the transform's ReferenceFrame, either to be relative to its parent reference frame, or relative to an absolute coordinate frame.
RELATIVE_RF is the default. Note: Setting the ReferenceFrame to be ABSOLUTE_RF will also set the CullingActive flag on the transform, and hence all of its parents, to false, thereby disabling culling of it and all its parents. This is necessary to prevent inappropriate culling, but may impact cull times if the absolute transform is deep in the scene graph. It is therefore recommended to only use absolute Transforms at the top of the scene, for such things as heads up displays. ABSOLUTE_RF_INHERIT_VIEWPOINT is the same as ABSOLUTE_RF except it adds the ability to use the parents view points position in world coordinates as its local viewpoint in the new coordinates frame. This is useful for Render to texture Cameras that wish to use the main views LOD range computation (which uses the viewpoint rather than the eye point) rather than use the local eye point defined by the this Transforms' absolute view matrix.
The documentation for this class was generated from the following file:
- /home/karlu20/private/installs/OpenSceneGraph/include/osg/Transform
