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MappedMassMatrixObserver.h
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MappedMassMatrixObserver.h
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/******************************************************************************
* SOFA, Simulation Open-Framework Architecture *
* (c) 2006 INRIA, USTL, UJF, CNRS, MGH *
* *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This program 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 GNU Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*******************************************************************************
* Authors: The SOFA Team and external contributors (see Authors.txt) *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#pragma once
#include <sofa/core/behavior/BaseMass.h>
#include <sofa/component/linearsystem/config.h>
#include <sofa/component/linearsystem/matrixaccumulators/BaseAssemblingMatrixAccumulator.h>
#include <sofa/linearalgebra/CompressedRowSparseMatrix.h>
namespace sofa::component::linearsystem
{
/**
* Pre-compute the mapped mass matrix assuming it is constant and store it.
* Support cache invalidation
*/
template<class Real>
struct MappedMassMatrixObserver
{
/// The provided mass is observed to track cache invalidation
void observe(core::behavior::BaseMass* mass);
void observe(core::BaseMapping* mapping);
/// The provided state (associated to the mass) is observed to track cache invalidation
void observe(core::behavior::BaseMechanicalState* mstate);
/// The mass accumulator associated to the observable mass
BaseAssemblingMatrixAccumulator<core::matrixaccumulator::Contribution::MASS>* accumulator { nullptr };
/// Return the observable mass
core::behavior::BaseMass* getObservableMass() const;
/// Return the observable state
core::behavior::BaseMechanicalState* getObservableState() const;
/// Return true if the tracking of the observables noticed a change since the last call
[[nodiscard]] bool hasObservableChanged();
std::shared_ptr<linearalgebra::CompressedRowSparseMatrix<Real> > m_invariantMassMatrix;
Data<linearalgebra::CompressedRowSparseMatrix<Real>> m_invariantProjectedMassMatrix;
protected:
core::DataTracker m_dataTracker;
core::behavior::BaseMass* m_observedMass { nullptr };
/// The state associated to the observable mass
core::behavior::BaseMechanicalState* m_mstate { nullptr };
bool m_newObservables = true;
};
#if !defined(SOFA_COMPONENT_LINEARSYSTEM_MAPPEDMASSMATRIXOBSERVER_CPP)
extern template struct SOFA_COMPONENT_LINEARSYSTEM_API MappedMassMatrixObserver<SReal>;
#endif
}