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[Spring] Add empty buildStiffnessMatrix in JointSpringForceField #5895

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[Spring] Add empty buildStiffnessMatrix in JointSpringForceField #5895

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4 changes: 2 additions & 2 deletions ...nt/SolidMechanics/Spring/src/sofa/component/solidmechanics/spring/JointSpringForceField.h
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Original file line number Diff line number Diff line change
Expand Up @@ -92,8 +92,6 @@ class JointSpringForceField : public core::behavior::PairInteractionForceField<D
// project torsion to Lawfulltorsion according to limitangles
void projectTorsion(Spring& spring);



JointSpringForceField(MechanicalState* object1, MechanicalState* object2);
JointSpringForceField();

Expand Down Expand Up @@ -123,6 +121,8 @@ class JointSpringForceField : public core::behavior::PairInteractionForceField<D
const DataVecDeriv& data_dx1,
const DataVecDeriv& data_dx2) override;

void buildStiffnessMatrix(core::behavior::StiffnessMatrix* matrix) override;

void buildDampingMatrix(core::behavior::DampingMatrix* /*matrix*/) final;

SReal getPotentialEnergy(const core::MechanicalParams*,
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7 changes: 7 additions & 0 deletions .../SolidMechanics/Spring/src/sofa/component/solidmechanics/spring/JointSpringForceField.inl
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Expand Up @@ -358,6 +358,13 @@ void JointSpringForceField<DataTypes>::addDForce(const core::MechanicalParams *m
data_df2.endEdit();
}

template <class DataTypes>
void JointSpringForceField<DataTypes>::buildStiffnessMatrix(core::behavior::StiffnessMatrix* matrix)
{
SOFA_UNUSED(matrix);
msg_error() << "buildStiffnessMatrix not implemented (thus only computing explicit forces)";
}

template <class DataTypes>
void JointSpringForceField<DataTypes>::buildDampingMatrix(core::behavior::DampingMatrix*)
{
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