85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSG_MATRIXTRANSFORM
|
|
#define OSG_MATRIXTRANSFORM 1
|
|
|
|
#include <osg/Transform>
|
|
|
|
namespace osg {
|
|
|
|
/** MatrixTransform - is a subclass of Transform which has an osg::Matrix
|
|
* which represents a 4x4 transformation of its children from local coordinates
|
|
* into the Transform's parent coordinates.
|
|
*/
|
|
class OSG_EXPORT MatrixTransform : public Transform
|
|
{
|
|
public :
|
|
|
|
|
|
MatrixTransform();
|
|
|
|
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
|
|
MatrixTransform(const MatrixTransform&,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
|
|
|
|
MatrixTransform(const Matrix& matix);
|
|
|
|
META_Node(osg, MatrixTransform);
|
|
|
|
virtual MatrixTransform* asMatrixTransform() { return this; }
|
|
virtual const MatrixTransform* asMatrixTransform() const { return this; }
|
|
|
|
|
|
/** Set the transform's matrix.*/
|
|
void setMatrix(const Matrix& mat) { _matrix = mat; _inverseDirty=true; dirtyBound(); }
|
|
|
|
/** Get the matrix. */
|
|
inline const Matrix& getMatrix() const { return _matrix; }
|
|
|
|
/** pre multiply the transform's matrix.*/
|
|
void preMult(const Matrix& mat) { _matrix.preMult(mat); _inverseDirty=true; dirtyBound(); }
|
|
|
|
/** post multiply the transform's matrix.*/
|
|
void postMult(const Matrix& mat) { _matrix.postMult(mat); _inverseDirty=true; dirtyBound(); }
|
|
|
|
/** Get the inverse matrix. */
|
|
inline const Matrix& getInverseMatrix() const
|
|
{
|
|
if (_inverseDirty)
|
|
{
|
|
_inverse.invert(_matrix);
|
|
_inverseDirty = false;
|
|
}
|
|
return _inverse;
|
|
}
|
|
|
|
virtual bool computeLocalToWorldMatrix(Matrix& matrix,NodeVisitor*) const;
|
|
|
|
virtual bool computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor*) const;
|
|
|
|
|
|
protected :
|
|
|
|
virtual ~MatrixTransform();
|
|
|
|
Matrix _matrix;
|
|
mutable Matrix _inverse;
|
|
mutable bool _inverseDirty;
|
|
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|