class SG_EXPORT osg::NodeVisitor

Visitor for type safe operations on osg::Node's.

Inheritance:

Public Methods

NodeVisitor(TraversalMode tm=TRAVERSE_NONE)

virtual ~NodeVisitor()

virtual void reset()

Method to call to reset visitor.

void setTraversalMode(const TraversalMode mode)

Set the traversal mode for Node::traverse() to use when deciding which children of a node to traverse.

inline const TraversalMode getTraversalMode() const

Get the traversal mode

void setTraversalVisitor(NodeVisitor* nv)

Set a visitor to handle traversal.

NodeVisitor* getTraversalVisitor()

Get the traversal visitor, returns NULL if none is attached

void traverse(Node& node)

Inline method for passing handling traversal of a nodes.

virtual void apply(Node& node)

virtual void apply(Geode& node)

virtual void apply(Billboard& node)

virtual void apply(LightSource& node)

virtual void apply(Group& node)

virtual void apply(Transform& node)

virtual void apply(Switch& node)

virtual void apply(Sequence& node)

virtual void apply(LOD& node)

virtual void apply(Impostor& node)

Public Members

enum TraversalMode

Protected Fields

ref_ptr<NodeVisitor> _traversalVisitor

TraversalMode _traversalMode

Inherited from Referenced:

Public Methods

inline Referenced& operator = (Referenced&)

inline void ref() const

inline void unref() const

inline const int referenceCount() const

Protected Fields

mutable int _refCount

Documentation

Visitor for type safe operations on osg::Node's. Based on GOF's Visitor pattern.

enum TraversalMode

TRAVERSE_NONE

TRAVERSE_PARENTS

TRAVERSE_ALL_CHILDREN

TRAVERSE_ACTIVE_CHILDREN

TRAVERSE_VISITOR

NodeVisitor(TraversalMode tm=TRAVERSE_NONE)

virtual ~NodeVisitor()

virtual void reset()

Method to call to reset visitor. Useful for your visitor accumulates state during a traversal, and you plan to resuse the visitor. To flush that state for the next traversal than call reset() prior to each traversal.

void setTraversalMode(const TraversalMode mode)

Set the traversal mode for Node::traverse() to use when deciding which children of a node to traverse. If a NodeVisitor has been attached via setTraverseVisitor() and the new mode is not TRAVERSE_VISITOR then the attached visitor is detached. Default mode is TRAVERSE_NONE.

inline const TraversalMode getTraversalMode() const

Get the traversal mode

void setTraversalVisitor(NodeVisitor* nv)

Set a visitor to handle traversal. Overides the traverse mode setting it to TRAVERSAL_VISITOR.

NodeVisitor* getTraversalVisitor()

Get the traversal visitor, returns NULL if none is attached

void traverse(Node& node)

Inline method for passing handling traversal of a nodes. If you intend to use the visitor for actively traversing the scene graph then make sure the accept() methods call this method unless they handle traversal directly.

virtual void apply(Node& node)

virtual void apply(Geode& node)

virtual void apply(Billboard& node)

virtual void apply(LightSource& node)

virtual void apply(Group& node)

virtual void apply(Transform& node)

virtual void apply(Switch& node)

virtual void apply(Sequence& node)

virtual void apply(LOD& node)

virtual void apply(Impostor& node)

ref_ptr<NodeVisitor> _traversalVisitor

TraversalMode _traversalMode

This class has no child classes.

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