55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 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.
|
|
*/
|
|
#include <osg/PositionAttitudeTransform>
|
|
|
|
using namespace osg;
|
|
|
|
PositionAttitudeTransform::PositionAttitudeTransform()
|
|
{
|
|
}
|
|
|
|
bool PositionAttitudeTransform::computeLocalToWorldMatrix(Matrix& matrix,NodeVisitor*) const
|
|
{
|
|
if (_referenceFrame==RELATIVE_TO_PARENTS)
|
|
{
|
|
matrix.preMult(osg::Matrix::translate(-_pivotPoint)*
|
|
osg::Matrix::rotate(_attitude)*
|
|
osg::Matrix::translate(_position));
|
|
}
|
|
else // absolute
|
|
{
|
|
matrix = osg::Matrix::translate(-_pivotPoint)*
|
|
osg::Matrix::rotate(_attitude)*
|
|
osg::Matrix::translate(_position);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool PositionAttitudeTransform::computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor*) const
|
|
{
|
|
if (_referenceFrame==RELATIVE_TO_PARENTS)
|
|
{
|
|
matrix.postMult(osg::Matrix::translate(-_position)*
|
|
osg::Matrix::rotate(_attitude.inverse())*
|
|
osg::Matrix::translate(_pivotPoint));
|
|
}
|
|
else // absolute
|
|
{
|
|
matrix = osg::Matrix::translate(-_position)*
|
|
osg::Matrix::rotate(_attitude.inverse())*
|
|
osg::Matrix::translate(_pivotPoint);
|
|
}
|
|
return true;
|
|
}
|