class SG_EXPORT osg::Group

General group node which maintains a list of children.

Inheritance:

Public Methods

Group()

Group(const Group&, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

Copy constructor using CopyOp to manage deep vs shallow copy

META_Node(osg, Group)

virtual Group* asGroup()

virtual const Group* asGroup() const

virtual void traverse(NodeVisitor& nv)

virtual bool addChild( Node* child )

Add Node to Group.

virtual bool insertChild( unsigned int index, Node* child )

Insert Node to Group at specific location.

virtual bool removeChild( Node* child )

Remove Node from Group.

virtual bool removeChild(unsigned int pos, unsigned int numChildrenToRemove=1)

virtual bool replaceChild( Node* origChild, Node* newChild )

Replace specified Node with another Node.

inline unsigned int getNumChildren() const

return the number of chilren nodes

virtual bool setChild( unsigned int i, Node* node )

set child node at position i.

inline Node* getChild( unsigned int i )

return child node at position i

inline const Node* getChild( unsigned int i ) const

return child node at position i

inline bool containsNode( const Node* node ) const

return true if node is contained within Group

inline unsigned int getChildIndex( const Node* node ) const

Get the index number of child, return a value between 0 and _childrensize()-1 if found, if not found then return _childrensize()

Protected Fields

NodeList _children

Protected Methods

virtual ~Group()

virtual bool computeBound() const

virtual void childRemoved(unsigned int , unsigned int )

virtual void childInserted(unsigned int )

Inherited from Node:

Public Methods

virtual Object* cloneType() const

virtual Object* clone(const CopyOp& copyop) const

virtual bool isSameKindAs(const Object* obj) const

virtual const char* libraryName() const

virtual const char* className() const

virtual Transform* asTransform()

virtual const Transform* asTransform() const

virtual void accept(NodeVisitor& nv)

virtual void ascend(NodeVisitor& nv)

inline void setName( const std::string& name )

inline void setName( const char* name )

inline const std::string& getName() const

inline const ParentList& getParents() const

inline ParentList getParents()

inline Group* getParent(unsigned int i)

inline const Group* getParent(unsigned int i) const

inline unsigned int getNumParents() const

void setUpdateCallback(NodeCallback* nc)

inline NodeCallback* getUpdateCallback()

inline const NodeCallback* getUpdateCallback() const

inline unsigned int getNumChildrenRequiringUpdateTraversal() const

void setCullCallback(NodeCallback* nc)

inline NodeCallback* getCullCallback()

inline const NodeCallback* getCullCallback() const

void setCullingActive(bool active)

inline bool getCullingActive() const

inline unsigned int getNumChildrenWithCullingDisabled() const

inline bool isCullingActive() const

inline unsigned int getNumChildrenWithOccluderNodes() const

bool containsOccluderNodes() const

inline void setNodeMask(NodeMask nm)

inline NodeMask getNodeMask() const

inline const DescriptionList& getDescriptions() const

inline DescriptionList& getDescriptions()

inline const std::string& getDescription(unsigned int i) const

inline std::string& getDescription(unsigned int i)

inline unsigned int getNumDescriptions() const

void addDescription(const std::string& desc)

inline void setStateSet(osg::StateSet* dstate)

osg::StateSet* getOrCreateStateSet()

inline osg::StateSet* getStateSet()

inline const osg::StateSet* getStateSet() const

inline const BoundingSphere& getBound() const

void dirtyBound()

Public

typedef std::vector<Group*> ParentList

typedef unsigned int NodeMask

typedef std::vector<std::string> DescriptionList

Protected Fields

mutable BoundingSphere _bsphere

mutable bool _bsphere_computed

std::string _name

ParentList _parents

ref_ptr<NodeCallback> _updateCallback

unsigned int _numChildrenRequiringUpdateTraversal

ref_ptr<NodeCallback> _cullCallback

bool _cullingActive

unsigned int _numChildrenWithCullingDisabled

unsigned int _numChildrenWithOccluderNodes

NodeMask _nodeMask

DescriptionList _descriptions

ref_ptr<StateSet> _stateset

Protected Methods

void addParent(osg::Group* node)

void removeParent(osg::Group* node)

void setNumChildrenRequiringUpdateTraversal(unsigned int num)

void setNumChildrenWithCullingDisabled(unsigned int num)

void setNumChildrenWithOccluderNodes(unsigned int num)

Inherited from Object:

Public Classes

enum DataVariance

Public Methods

inline void setDataVariance(DataVariance dv)

inline DataVariance getDataVariance() const

inline void setUserData(Referenced* obj)

inline Referenced* getUserData()

inline const Referenced* getUserData() const

Protected Fields

DataVariance _dataVariance

ref_ptr<Referenced> _userData

Inherited from Referenced:

Public Methods

inline Referenced& operator = (const Referenced&)

static void setDeleteHandler(DeleteHandler* handler)

static DeleteHandler* getDeleteHandler()

inline void ref() const

inline void unref_nodelete() const

inline int referenceCount() const

inline void unref() const

Protected Fields

mutable OpenThreads::Mutex _refMutex

mutable int _refCount

Documentation

General group node which maintains a list of children. Children are reference counted. This allows children to be shared with memory management handled automatically via osg::Referenced.

Group()

Group(const Group&, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

Copy constructor using CopyOp to manage deep vs shallow copy

META_Node(osg, Group)

virtual Group* asGroup()

virtual const Group* asGroup() const

virtual void traverse(NodeVisitor& nv)

virtual bool addChild( Node* child )

Add Node to Group. If node is not NULL and is not contained in Group then increment its reference count, add it to the child list and dirty the bounding sphere to force it to recompute on next getBound() and return true for success. Otherwise return false. Scene nodes can't be added as child nodes.

virtual bool insertChild( unsigned int index, Node* child )

Insert Node to Group at specific location. The new child node is inserted into the child list before the node at the specified index. No nodes are removed from the group with this operation.

virtual bool removeChild( Node* child )

Remove Node from Group. If Node is contained in Group then remove it from the child list, decrement its reference count, and dirty the bounding sphere to force it to recompute on next getBound() and return true for success. If Node is not found then return false and do not change the reference count of the Node.

virtual bool removeChild(unsigned int pos, unsigned int numChildrenToRemove=1)

virtual bool replaceChild( Node* origChild, Node* newChild )

Replace specified Node with another Node. Equivalent to setChild(getChildIndex(orignChild),node), see docs for setChild for futher details on implementation.

inline unsigned int getNumChildren() const

return the number of chilren nodes

virtual bool setChild( unsigned int i, Node* node )

set child node at position i. return true if set correctly, false on failure (if node==NULL || i is out of range). When set can be successful applied, the algorithm is : decrement the reference count origNode and increments the reference count of newNode, and dirty the bounding sphere to force it to recompute on next getBound() and returns true. If origNode is not found then return false and do not add newNode. If newNode is NULL then return false and do not remove origNode. Also returns false if newChild is a Scene node.

inline Node* getChild( unsigned int i )

return child node at position i

inline const Node* getChild( unsigned int i ) const

return child node at position i

inline bool containsNode( const Node* node ) const

return true if node is contained within Group

inline unsigned int getChildIndex( const Node* node ) const

Get the index number of child, return a value between 0 and _childrensize()-1 if found, if not found then return _childrensize()

virtual ~Group()

virtual bool computeBound() const

virtual void childRemoved(unsigned int , unsigned int )

virtual void childInserted(unsigned int )

NodeList _children

Direct child classes:

Transform
TexGenNode
Switch
Sequence
Projection
OccluderNode
LightSource
LOD
CoordinateSystemNode
ClipNode
ClearNode

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