class SG_EXPORT osg::Object

Base class/standard interface for objects which require IO support, cloning and reference counting.

Inheritance:

Public Methods

inline Object()

Construct an object.

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

Copy constructor, optional CopyOp object can be used to control shallow vs deep copying of dynamic data

virtual Object* cloneType() const = 0

Clone the type of an object, with Object* return type.

virtual Object* clone(const CopyOp&) const = 0

Clone the an object, with Object* return type.

virtual bool isSameKindAs(const Object*) const

virtual const char* libraryName() const = 0

return the name of the object's library.

virtual const char* className() const = 0

return the name of the object's class type.

inline void setDataVariance(const DataVariance dv)

Set the data variance of this object.

inline const DataVariance getDataVariance() const

Get the data variance of this object

Public Members

enum DataVariance

Protected Fields

DataVariance _dataVariance

Protected Methods

virtual ~Object()

Object destructor.

Inherited from Referenced:

Public Methods

inline Referenced& operator = (Referenced&)

inline void ref() const

inline void unref() const

inline void unref_nodelete() const

inline const int referenceCount() const

Protected Fields

mutable int _refCount

Documentation

Base class/standard interface for objects which require IO support, cloning and reference counting. Based on GOF Composite, Prototype and Template Method patterns.

inline Object()

Construct an object. Note Object is a pure virtual base class and therefore cannot be constructed on its own, only derived classes which override the clone and className methods are concrete classes and can be constructed.

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

Copy constructor, optional CopyOp object can be used to control shallow vs deep copying of dynamic data

virtual Object* cloneType() const = 0

Clone the type of an object, with Object* return type. Must be defined by derived classes.

virtual Object* clone(const CopyOp&) const = 0

Clone the an object, with Object* return type. Must be defined by derived classes.

virtual bool isSameKindAs(const Object*) const

virtual const char* libraryName() const = 0

return the name of the object's library. Must be defined by derived classes. The OpenSceneGraph convention the is that the namspace of a library is the same as the library name.

virtual const char* className() const = 0

return the name of the object's class type. Must be defined by derived classes.

enum DataVariance

DYNAMIC

STATIC

inline void setDataVariance(const DataVariance dv)

Set the data variance of this object. Can be set to either STATIC for values that do not change over the lifetime of the object, or DYNAMIC for values that vary over the lifetime of the object. The DataVariance value can be used be routines such as optimzation codes that wish to share static data.

inline const DataVariance getDataVariance() const

Get the data variance of this object

virtual ~Object()

Object destructor. Note, is protected so that Objects cannot be deleted other than by being dereferenced and the reference count being zero (see osg::Referenced), preventing the deletion of nodes which are still in use. This also means that Node's cannot be created on stack i.e Node node will not compile, forcing all nodes to be created on the heap i.e Node* node = new Node().

DataVariance _dataVariance

Direct child classes:

StateSet
StateAttribute
Primitive
Matrix
Image
Drawable
ConvexPlanerOccluder
Array

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