kernel_trial_integral.hpp

// Copyright (C) 2011-2012 by the BEM++ Authors
//
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// 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.
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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#ifndef fiber_kernel_trial_integral_hpp
#define fiber_kernel_trial_integral_hpp

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

#include "scalar_traits.hpp"

namespace Fiber
{

template <typename T> class _2dArray;
template <typename T> class _3dArray;
template <typename T> class CollectionOf2dArrays;
template <typename T> class CollectionOf3dArrays;
template <typename T> class CollectionOf4dArrays;
template <typename CoordinateType> class GeometricalData;
template <typename BasisFunctionType_, typename KernelType_,
          typename ResultType_>
class KernelTrialIntegral
{
public:
    typedef BasisFunctionType_ BasisFunctionType;
    typedef KernelType_ KernelType;
    typedef ResultType_ ResultType;
    typedef typename ScalarTraits<ResultType>::RealType CoordinateType;

    virtual ~KernelTrialIntegral()
    {}

    virtual int resultDimension() const = 0;

    virtual void addGeometricalDependencies(size_t& trialGeomDeps) const = 0;

    // Note: 'weights' are assumed to be the products of "raw" quadrature
    // weights and integration elements.
    virtual void evaluate(
            const GeometricalData<CoordinateType>& trialGeomData,
            const CollectionOf4dArrays<KernelType>& kernels,
            const CollectionOf2dArrays<ResultType>& trialTransformations,
            const std::vector<CoordinateType>& weights,
            _2dArray<ResultType>& result) const = 0;

    virtual void evaluateWithPureWeights(
            const GeometricalData<CoordinateType>& trialGeomData,
            const CollectionOf4dArrays<KernelType>& kernels,
            const CollectionOf3dArrays<BasisFunctionType>& trialTransformations,
            const std::vector<CoordinateType>& weights,
            _3dArray<ResultType>& result) const = 0;
};

} // namespace Fiber

#endif