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projection_finite_strain_fast.hh
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Tue, Nov 19, 01:49

projection_finite_strain_fast.hh
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/**
* file projection_finite_strain_fast.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 12 Dec 2017
*
* @brief Faster alternative to ProjectionFinitestrain
*
* @section LICENCE
*
* Copyright © 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef PROJECTION_FINITE_STRAIN_FAST_H
#define PROJECTION_FINITE_STRAIN_FAST_H
#include "fft/projection_base.hh"
#include "common/common.hh"
#include "common/field_collection.hh"
#include "common/field_map.hh"
namespace muSpectre {
template <Dim_t DimS, Dim_t DimM>
class ProjectionFiniteStrainFast: public ProjectionBase<DimS, DimM>
{
public:
using Parent = ProjectionBase<DimS, DimM>;
using FFT_Engine_ptr = typename Parent::FFT_Engine_ptr;
using Ccoord = typename Parent::Ccoord;
using GFieldCollection_t = FieldCollection<DimS, DimM, true>;
using LFieldCollection_t = FieldCollection<DimS, DimM, false>;
using Field_t = TensorField<GFieldCollection_t, Real, secondOrder, DimM>;
using Proj_t = TensorField<LFieldCollection_t, Real, firstOrder, DimM>;
using Proj_map = MatrixFieldMap<LFieldCollection_t, Real, DimM, 1>;
using Grad_map = MatrixFieldMap<LFieldCollection_t, Complex, DimM, DimM>;
//! Default constructor
ProjectionFiniteStrainFast() = delete;
//! Constructor with fft_engine
ProjectionFiniteStrainFast(FFT_Engine_ptr engine);
//! Copy constructor
ProjectionFiniteStrainFast(const ProjectionFiniteStrainFast &other) = delete;
//! Move constructor
ProjectionFiniteStrainFast(ProjectionFiniteStrainFast &&other) = default;
//! Destructor
virtual ~ProjectionFiniteStrainFast() = default;
//! Copy assignment operator
ProjectionFiniteStrainFast& operator=(const ProjectionFiniteStrainFast &other) = delete;
//! Move assignment operator
ProjectionFiniteStrainFast& operator=(ProjectionFiniteStrainFast &&other) = default;
//! initialises the fft engine (plan the transform)
virtual void initialise(FFT_PlanFlags flags = FFT_PlanFlags::estimate) override final;
//! apply the projection operator to a field
void apply_projection(Field_t & field) override final;
protected:
Proj_map xis;
private:
};
} // muSpectre
#endif /* PROJECTION_FINITE_STRAIN_FAST_H */

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