class SG_EXPORT osg::MatrixTransform

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

Inheritance:

Public Methods

MatrixTransform()

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

Copy constructor using CopyOp to manage deep vs shallow copy

MatrixTransform(const Matrix& matix)

META_Node(osg, MatrixTransform)

void setMatrix(const Matrix& mat)

Set the transform's matrix

inline const Matrix& getMatrix() const

Get the transform's matrix.

void preMult(const Matrix& mat)

preMult transform

void postMult(const Matrix& mat)

postMult transform

virtual const bool computeLocalToWorldMatrix(Matrix& matrix, NodeVisitor*) const

virtual const bool computeWorldToLocalMatrix(Matrix& matrix, NodeVisitor*) const

Protected Fields

ref_ptr<Matrix> _matrix

mutable ref_ptr<Matrix> _inverse

mutable bool _inverseDirty

Protected Methods

virtual ~MatrixTransform()

inline void computeInverse() const

Inherited from Transform:

Public Methods

void setReferenceFrame(ReferenceFrame rf)

const ReferenceFrame getReferenceFrame() const

void setComputeTransformCallback(ComputeTransformCallback* ctc)

ComputeTransformCallback* getComputeTransformCallback()

const ComputeTransformCallback* getComputeTransformCallback() const

inline const bool getLocalToWorldMatrix(Matrix& matrix, NodeVisitor* nv) const

inline const bool getWorldToLocalMatrix(Matrix& matrix, NodeVisitor* nv) const

Public Members

enum ReferenceFrame

struct ComputeTransformCallback: public osg::Referenced

Protected Fields

ref_ptr<ComputeTransformCallback> _computeTransformCallback

ReferenceFrame _referenceFrame

ref_ptr<Matrix> _deprecated_matrix

mutable ref_ptr<Matrix> _deprecated_inverse

mutable bool _deprecated_inverseDirty

Protected Methods

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 unsigned int getNumChildren() const

inline Node* getChild( const unsigned int i )

inline const Node* getChild( const unsigned 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

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. The Transform node can be customized via the ComputeTransfromCallback which can be attached to the node, this might be used to convert internal representations of the transformation into generic osg::Matrix'c which are used during scene grpah traversal, such as CullTraversal and IntersectionTraversal. 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);.

MatrixTransform()

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

Copy constructor using CopyOp to manage deep vs shallow copy

MatrixTransform(const Matrix& matix)

META_Node(osg, MatrixTransform)

void setMatrix(const Matrix& mat)

Set the transform's matrix

inline const Matrix& getMatrix() const

Get the transform's matrix.

void preMult(const Matrix& mat)

preMult transform

void postMult(const Matrix& mat)

postMult transform

virtual const bool computeLocalToWorldMatrix(Matrix& matrix, NodeVisitor*) const

virtual const bool computeWorldToLocalMatrix(Matrix& matrix, NodeVisitor*) const

virtual ~MatrixTransform()

inline void computeInverse() const

ref_ptr<Matrix> _matrix

mutable ref_ptr<Matrix> _inverse

mutable bool _inverseDirty

This class has no child classes.

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