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Added new s/getPivotPoint() support to osg::PositionAttitudeTransform.

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Modified the osglight demo to use an AppCallback and a PositionAttitudeTransform
to animate the loaded model.
This commit is contained in:
Robert Osfield
2002-08-12 17:40:36 +00:00
parent 29490a8c1c
commit 743b174da9
3 changed files with 93 additions and 20 deletions
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25
src/osg/PositionAttitudeTransform.cpp
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@@ -10,16 +10,15 @@ const bool PositionAttitudeTransform::computeLocalToWorldMatrix(Matrix& matrix,N
{
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
osg::Matrix tmp;
tmp.makeRotate(_attitude);
tmp.setTrans(_position);
matrix.preMult(tmp);
matrix.preMult(osg::Matrix::translate(-_pivotPoint)*
osg::Matrix::rotate(_attitude)*
osg::Matrix::translate(_position));
}
else // absolute
{
matrix.makeRotate(_attitude);
matrix.setTrans(_position);
matrix = osg::Matrix::translate(-_pivotPoint)*
osg::Matrix::rotate(_attitude)*
osg::Matrix::translate(_position);
}
return true;
}
@@ -29,15 +28,15 @@ const bool PositionAttitudeTransform::computeWorldToLocalMatrix(Matrix& matrix,N
{
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
osg::Matrix tmp;
tmp.makeTranslate(-_position);
tmp.postMult(osg::Matrix::rotate(_attitude.inverse()));
matrix.postMult(tmp);
matrix.postMult(osg::Matrix::translate(-_position)*
osg::Matrix::rotate(_attitude.inverse())*
osg::Matrix::translate(_pivotPoint));
}
else // absolute
{
matrix.makeTranslate(-_position);
matrix.postMult(osg::Matrix::rotate(_attitude.inverse()));
matrix = osg::Matrix::translate(-_position)*
osg::Matrix::rotate(_attitude.inverse())*
osg::Matrix::translate(_pivotPoint);
}
return true;
}