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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkFEMSolverHyperbolic_h
#define itkFEMSolverHyperbolic_h
#include "itkFEMSolver.h"
namespace itk {
namespace fem {
/**
* \class SolverHyperbolic
* \brief Solver class suitable for hyperbolic problems.
* \ingroup ITKFEM
*
* M*ddu + C*du + K*u=F
*/
template <unsigned int TDimension = 3>
class ITK_TEMPLATE_EXPORT SolverHyperbolic : public Solver<TDimension>
{
public:
typedef SolverHyperbolic Self;
typedef Solver<TDimension> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(SolverHyperbolic, Solver<TDimension> );
typedef Element::Float Float;
/** Get/Set Gamma. */
itkSetMacro(Gamma, Float);
itkGetMacro(Gamma, Float);
/** Get/Set Beta. */
itkSetMacro(Beta, Float);
itkGetMacro(Beta, Float);
/** Get/Set Number of Iterations. */
itkSetMacro(NumberOfIterations, unsigned int);
itkGetMacro(NumberOfIterations, unsigned int);
/** Returns the time step used for dynamic problems. */
virtual Float GetTimeStep(void) const ITK_OVERRIDE
{
return this->m_TimeStep;
}
/**
* Sets the time step used for the problems.
*
* \param dt New time step.
*/
virtual void SetTimeStep(Float dt) ITK_OVERRIDE
{
this->m_TimeStep = dt;
}
protected:
SolverHyperbolic();
virtual ~SolverHyperbolic() ITK_OVERRIDE {}
void PrintSelf(std::ostream& os, Indent indent) const ITK_OVERRIDE;
/** Initialize the linear system wrapper. */
virtual void InitializeLinearSystemWrapper(void) ITK_OVERRIDE;
/**
* When assembling the element matrix into master matrix, we
* need to assemble the mass matrix too.
*/
virtual void AssembleElementMatrix(Element::Pointer e) ITK_OVERRIDE;
/** Initialize the storage for all master matrices. */
virtual void InitializeMatrixForAssembly(unsigned int N) ITK_OVERRIDE;
/**
* Combine the M, C and K matrices into one big system of linear
* equations.
*/
virtual void FinalizeMatrixAfterAssembly( void ) ITK_OVERRIDE;
/** Method invoked by the pipeline in order to trigger the computation. */
void GenerateData() ITK_OVERRIDE;
/** Solve for the displacement vector u at a given time.
* Update the total solution as well. */
virtual void RunSolver(void) ITK_OVERRIDE;
/** Solve for the displacement vector u for one iteration. */
void Solve();
/** Constants that specify where matrices are strored. */
enum { matrix_K=1, matrix_M=2, matrix_C=3, matrix_tmp=4 };
/** Constants that specify where vectors are strored. */
enum { solution_d=0, solution_v=1, solution_a=2};
enum { vector_dhat=2, vector_vhat=3, vector_ahat=4, vector_tmp=5 };
Float m_TimeStep;
Float m_Gamma;
Float m_Beta;
unsigned int m_NumberOfIterations;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(SolverHyperbolic);
};
} // end namespace fem
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFEMSolverHyperbolic.hxx"
#endif
#endif // #ifndef itkFEMSolverHyperbolic_h
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