FGFS-4.1/OpenSceneGraph
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Added a AnimationPathCallback which can update both a MatrixTransform and a

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PositionAttitudeTransform, removed the equivialnt callbacks once found in these
transform classes.

Changed the NodeCallback class so its derived from osg::Object instead of
osg::Referenced to allow it to be saved out in the .osg format.

Added support for Update and Cull callbacks into the .osg file format.

Added support for AnimationPathCallback into the .osg file format.
This commit is contained in:
Robert Osfield
2003-01-02 20:10:04 +00:00
parent 6ee563ad55
commit fe64942c54
21 changed files with 296 additions and 322 deletions
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48
src/osg/MatrixTransform.cpp
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@@ -13,10 +13,8 @@ MatrixTransform::MatrixTransform(const MatrixTransform& transform,const CopyOp&
Transform(transform,copyop),
_matrix(new Matrix(*transform._matrix)),
_inverse(new Matrix(*transform._inverse)),
_inverseDirty(transform._inverseDirty),
_animationPath(dynamic_cast<AnimationPath*>(copyop(transform._animationPath.get())))
_inverseDirty(transform._inverseDirty)
{
if (_animationPath.valid()) setNumChildrenRequiringUpdateTraversal(getNumChildrenRequiringUpdateTraversal()+1);
}
MatrixTransform::MatrixTransform(const Matrix& mat )
@@ -33,38 +31,30 @@ MatrixTransform::~MatrixTransform()
{
}
void MatrixTransform::traverse(NodeVisitor& nv)
bool MatrixTransform::computeLocalToWorldMatrix(Matrix& matrix,NodeVisitor*) const
{
// if app traversal update the frame count.
if (_animationPath.valid() &&
nv.getVisitorType()==NodeVisitor::UPDATE_VISITOR &&
nv.getFrameStamp())
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
double time = nv.getFrameStamp()->getReferenceTime();
_animationPath->getMatrix(time,*_matrix);
matrix.preMult(*_matrix);
}
// must call any nested node callbacks and continue subgraph traversal.
Transform::traverse(nv);
else // absolute
{
matrix = *_matrix;
}
return true;
}
void MatrixTransform::AnimationPathCallback::operator()(Node* node, NodeVisitor* nv)
bool MatrixTransform::computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor*) const
{
MatrixTransform* mt = dynamic_cast<MatrixTransform*>(node);
if (mt &&
_animationPath.valid() &&
nv->getVisitorType()==NodeVisitor::UPDATE_VISITOR &&
nv->getFrameStamp())
const Matrix& inverse = getInverseMatrix();
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
double time = nv->getFrameStamp()->getReferenceTime();
if (_firstTime==0.0) _firstTime = time;
Matrix matrix;
if (_animationPath->getMatrix(((time-_firstTime)-_timeOffset)*_timeMultiplier,matrix))
{
mt->setMatrix(matrix);
}
matrix.postMult(inverse);
}
// must call any nested node callbacks and continue subgraph traversal.
traverse(node,nv);
else // absolute
{
matrix = inverse;
}
return true;
}