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# Node File Reference

`#include <osg/Object>`
`#include <osg/StateSet>`
`#include <osg/BoundingSphere>`
`#include <osg/NodeCallback>`
`#include <string>`
`#include <vector>`

## Namespaces
namespace | osg
## Defines
#define | OSG_NODE 1
#define | META_Node(library, name)
| META_Node macro define the standard clone, isSameKindAs, className and accept methods.

## Define Documentation

#define META_Node | ( | library,
|  | name |  | ) |

| Value:
    virtual osg::Object* cloneType() const { return new name (); } \
            virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new name (*this,copyop); } \
            virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const name *>(obj)!=NULL; } \
            virtual const char* className() const { return #name; } \
            virtual const char* libraryName() const { return #library; } \
            virtual void accept(osg::NodeVisitor& nv) { if (nv.validNodeMask(*this)) { nv.pushOntoNodePath(this); nv.apply(*this); nv.popFromNodePath(); } } \
META_Node macro define the standard clone, isSameKindAs, className and accept methods. Use when subclassing from Node to make it more convenient to define the required pure virtual methods.

#define OSG_NODE 1