class SG_EXPORT osg::NodeVisitor

class SG_EXPORT osg::NodeVisitor: public Referenced

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

Inheritance:

Public Classes
enum TraversalMode

Public Methods
NodeVisitor(TraversalMode tm=TRAVERSE_NONE)
virtual ~NodeVisitor()
void setTraverseMode(TraversalMode mode): Set the traversal mode for Node::traverse() to use when deciding which children of a node to traverse.
TraversalMode getTraverseMode(): Get the traversal mode
void setTraverseVisitor(NodeVisitor* nv): Set a visitor to handle traversal.
NodeVisitor* getTraverseVisitor(): Get the traverse 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(DCS& node)
virtual void apply(Switch& node)
virtual void apply(Sequence& node)
virtual void apply(LOD& node)
virtual void apply(Scene& node)

Protected Fields
NodeVisitor* _traverseVisitor
TraversalMode _traverseMode

Inherited from Referenced:

Public Methods
Referenced& operator = (Referenced&)
void ref()
void unref()
int referenceCount()

Protected Fields
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()

void setTraverseMode(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.

TraversalMode getTraverseMode()

Get the traversal mode

void setTraverseVisitor(NodeVisitor* nv)

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

NodeVisitor* getTraverseVisitor()

Get the traverse 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.