class SG_EXPORT osg::Transform

Transform - is group which all children are transformed by the the Transform's osg::Matrix.

Inheritance:

Public Methods

Transform()

Transform(const Matrix& matix)

META_Node(Transform)

inline void setType(Type type)

Set the Transform Type, which can be DYNAMIC - the Matrix value is updated during the main loop, or STATIC - the Matrix is constant throughout the life of the main loop.

inline const Type getType() const

Get the Transform Type

inline const Matrix& getMatrix() const

inline void setMatrix(const Matrix& mat )

inline void preMult( const Matrix& mat )

preMult trasforms relative to the childrens coordinate system

inline void postMult( const Matrix& mat )

postMult trasforms relative to the parents coordinate system

Public Members

enum Type

Range of type that the Transform can be

Protected Fields

Type _type

ref_ptr<Matrix> _matrix

Protected Methods

virtual ~Transform()

virtual const bool computeBound() const

Inherited from Group:

Public Methods

virtual void traverse(NodeVisitor& nv)

virtual bool addChild( Node* child )

virtual bool removeChild( Node* child )

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

inline const int getNumChildren() const

inline Node* getChild( const int i )

inline const Node* getChild( const int i ) const

inline bool containsNode( const Node* node ) const

inline ChildList::iterator findNode( const Node* node )

inline ChildList::const_iterator findNode( const Node* node ) const

Protected Fields

ChildList _children

Inherited from Node:

Public Methods

virtual Object* clone() const

virtual bool isSameKindAs(const Object* obj) const

virtual const char* className() 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 Group* getParent(const int i)

inline const Group* getParent(const int i) const

inline const int getNumParents() const

void setAppCallback(NodeCallback* nc)

inline NodeCallback* getAppCallback()

inline const NodeCallback* getAppCallback() const

inline const int getNumChildrenRequiringAppTraversal() const

void setCullingActive(const bool active)

inline const bool getCullingActive() const

inline const int getNumChildrenWithCullingDisabled() const

inline void setUserData(osg::Referenced* obj)

inline Referenced* getUserData()

inline const Referenced* getUserData() const

inline void setNodeMask(const NodeMask nm)

inline const NodeMask getNodeMask() const

inline const DescriptionList& getDescriptions() const

inline DescriptionList& getDescriptions()

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

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

inline const int getNumDescriptions() const

void addDescription(const std::string& desc)

inline void setStateSet(osg::StateSet* dstate)

inline osg::StateSet* getStateSet()

inline const osg::StateSet* getStateSet() const

inline const BoundingSphere& getBound() const

void dirtyBound()

Public Members

typedef std::vector<Group*> ParentList

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

Protected Fields

mutable BoundingSphere _bsphere

mutable bool _bsphere_computed

std::string _name

ParentList _parents

ref_ptr<NodeCallback> _appCallback

int _numChildrenRequiringAppTraversal

bool _cullingActive

int _numChildrenWithCullingDisabled

osg::ref_ptr<Referenced> _userData

NodeMask _nodeMask

DescriptionList _descriptions

ref_ptr<StateSet> _dstate

Protected Methods

void setNumChildrenRequiringAppTraversal(const int num)

void setNumChildrenWithCullingDisabled(const int num)

Inherited from Object:

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

Transform - is group which all children are transformed by the the Transform's osg::Matrix. Typical uses of the Transform is for positioning objects within a scene or producing trackball functionality or for animation. Note, if the transformation matrix scales the subgraph then the normals of the underlying geometry will need to be renormalized to be unit vectors once more. One can done transparently through OpenGL's use of either GL_NORMALIZE and GL_SCALE_NORMALIZE modes. Further background reading see the glNormalize documentation in the OpenGL Reference Guide (the blue book). To enable it in the OSG, you simple need to attach a local osg::StateSet to the osg::Transform, and set the appropriate mode to on via stateset->setMode(GL_NORMALIZE,osg::StateAttribute::ON);.

Transform()

Transform(const Matrix& matix)

META_Node(Transform)

enum Type

Range of type that the Transform can be

DYNAMIC

STATIC

inline void setType(Type type)

Set the Transform Type, which can be DYNAMIC - the Matrix value is updated during the main loop, or STATIC - the Matrix is constant throughout the life of the main loop. STATIC Transforms can be optimized away is some instances, which can improve performance so unless you plan to modify the Matrix explicitly set the Matrix to STATIC. The default value is DYNAMIC.

inline const Type getType() const

Get the Transform Type

inline const Matrix& getMatrix() const

inline void setMatrix(const Matrix& mat )

inline void preMult( const Matrix& mat )

preMult trasforms relative to the childrens coordinate system

inline void postMult( const Matrix& mat )

postMult trasforms relative to the parents coordinate system

virtual ~Transform()

virtual const bool computeBound() const

Type _type

ref_ptr<Matrix> _matrix

This class has no child classes.

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