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[SofaBoundaryCondition] Fix ProjectToLineConstraint_RemovingMeshTest.scn #2241

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Jul 10, 2021
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[SofaBoundaryCondition] Fix ProjectToLineConstraint_RemovingMeshTest.scn #2241

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4 changes: 4 additions & 0 deletions modules/SofaBoundaryCondition/src/SofaBoundaryCondition/ProjectToLineConstraint.h
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Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,10 @@ protected :

SparseMatrix jacobian; ///< projection matrix in local state
SparseMatrix J; ///< auxiliary variable

/// Resize/update Jacobian matrix according to the linked mechanical state and the direction
void updateJacobian();

};


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15 changes: 13 additions & 2 deletions modules/SofaBoundaryCondition/src/SofaBoundaryCondition/ProjectToLineConstraint.inl
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Original file line number Diff line number Diff line change
Expand Up @@ -144,11 +144,17 @@ void ProjectToLineConstraint<DataTypes>::init()
}
}

reinit();
updateJacobian();
}

template <class DataTypes>
void ProjectToLineConstraint<DataTypes>::reinit()
{
updateJacobian();
}

template <class DataTypes>
void ProjectToLineConstraint<DataTypes>::updateJacobian()
{
// normalize the normal vector
CPos n = f_direction.getValue();
Expand Down Expand Up @@ -208,8 +214,13 @@ template <class DataTypes>
void ProjectToLineConstraint<DataTypes>::projectResponse(const core::MechanicalParams* mparams, DataVecDeriv& resData)
{
SOFA_UNUSED(mparams);

helper::WriteAccessor<DataVecDeriv> res(resData);
if( (jacobian.colSize() / DataTypes::deriv_total_size) != res.size())
{
updateJacobian();
}

helper::WriteAccessor<DataVecDeriv> res ( resData );
jacobian.mult(res.wref(),res.ref());
}

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