potential_operator.hpp

// Copyright (C) 2011-2012 by the BEM++ Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#ifndef bempp_potential_operator_hpp
#define bempp_potential_operator_hpp

#include "../common/common.hpp"

#include "../fiber/quadrature_strategy.hpp"
#include "../common/scalar_traits.hpp"
#include "../common/shared_ptr.hpp"

#include "../common/armadillo_fwd.hpp"
#include <memory>

namespace Bempp
{

class EvaluationOptions;
class EvaluationOptions;
class GeometryFactory;
class Grid;
template <typename BasisFunctionType, typename ResultType> class GridFunction;
template <typename ResultType> class InterpolatedFunction;
template <typename BasisFunctionType> class Space;
template <typename BasisFunctionType, typename ResultType>
class AssembledPotentialOperator;

template <typename BasisFunctionType_, typename ResultType_>
class PotentialOperator
{
public:
    typedef BasisFunctionType_ BasisFunctionType;
    typedef ResultType_ ResultType;
    typedef typename ScalarTraits<ResultType>::RealType CoordinateType;
    typedef Fiber::QuadratureStrategy<BasisFunctionType, ResultType, GeometryFactory>
    QuadratureStrategy;

    virtual ~PotentialOperator() {}

    virtual std::auto_ptr<InterpolatedFunction<ResultType> > evaluateOnGrid(
            const GridFunction<BasisFunctionType, ResultType>& argument,
            const Grid& evaluationGrid,
            const QuadratureStrategy& quadStrategy,
            const EvaluationOptions& options) const = 0;

    virtual arma::Mat<ResultType> evaluateAtPoints(
            const GridFunction<BasisFunctionType, ResultType>& argument,
            const arma::Mat<CoordinateType>& evaluationPoints,
            const QuadratureStrategy& quadStrategy,
            const EvaluationOptions& options) const = 0;

    virtual AssembledPotentialOperator<BasisFunctionType, ResultType>
    assemble(
            const shared_ptr<const Space<BasisFunctionType> >& space,
            const shared_ptr<const arma::Mat<CoordinateType> >& evaluationPoints,
            const QuadratureStrategy& quadStrategy,
            const EvaluationOptions& options) const = 0;

    virtual int componentCount() const = 0;
};

} // namespace Bempp

#endif