You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.7 KiB
84 lines
2.7 KiB
/* -*-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
|
|
|