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tamaas/src/model/integral_operator.hh
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integral_operator.hh
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/**
* @file
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas 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 3 of the License, or (at your option) any
* later version.
*
* Tamaas 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 Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef INTEGRAL_OPERATOR_HH
#define INTEGRAL_OPERATOR_HH
/* -------------------------------------------------------------------------- */
#include "grid_base.hh"
#include "model_type.hh"
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/seq.hpp>
#include <boost/preprocessor/stringize.hpp>
/* -------------------------------------------------------------------------- */
namespace tamaas {
/* -------------------------------------------------------------------------- */
class Model;
/**
* @brief Generic class for integral operators
*/
class IntegralOperator {
public:
/// Kind of operator
enum kind { neumann, dirichlet };
public:
/// Constructor
IntegralOperator(Model* model) : model(model) {}
/// Virtual destructor for subclasses
virtual ~IntegralOperator() = default;
/// Apply operator on input
virtual void apply(GridBase<Real>& input, GridBase<Real>& output) const = 0;
/// Apply operator on filtered input
virtual void applyIf(GridBase<Real>& input, GridBase<Real>& output,
std::function<bool(UInt)>) const {
apply(input, output);
}
/// Update any data dependent on model parameters
virtual void updateFromModel() = 0;
/// Get model
const Model& getModel() const { return *model; }
/// Kind
virtual kind getKind() const = 0;
/// Type
virtual model_type getType() const = 0;
/// Norm
virtual Real getOperatorNorm() {
TAMAAS_EXCEPTION("operator does not implement norm");
}
protected:
Model* model = nullptr;
};
/* -------------------------------------------------------------------------- */
/* Printing IntegralOperator::kind to string */
/* -------------------------------------------------------------------------- */
#define INTEGRAL_KINDS (neumann)(dirichlet)
inline std::ostream& operator<<(std::ostream& o,
const IntegralOperator::kind& val) {
switch (val) {
#define PRINT_INTEGRAL_KIND(r, data, kind) \
case data::kind: \
o << BOOST_PP_STRINGIZE(kind); \
break;
BOOST_PP_SEQ_FOR_EACH(PRINT_INTEGRAL_KIND, IntegralOperator,
INTEGRAL_KINDS);
#undef PRINT_INTEGRAL_KIND
}
return o;
}
#undef INTEGRAL_KINDS
/* -------------------------------------------------------------------------- */
} // namespace tamaas
#endif // INTEGRAL_OPERATOR_HH
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