cluster_construction_helper.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
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#ifndef bempp_cluster_construction_helper_hpp
#define bempp_cluster_construction_helper_hpp

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

#include "../common/armadillo_fwd.hpp"
#include "../common/shared_ptr.hpp"
#include "../fiber/scalar_traits.hpp"
#include "ahmed_aux_fwd.hpp"

#include <memory>

namespace Bempp
{

template <typename BasisFunctionType> class Space;
template <typename CoordinateType> struct AhmedDofWrapper;
template <typename CoordinateType> struct Point3D;
template <typename CoordinateType> struct BoundingBox;
class AcaOptions;
class IndexPermutation;
template <typename BasisFunctionType>
struct ClusterConstructionHelper
{
    typedef typename Fiber::ScalarTraits<BasisFunctionType>::RealType CoordinateType;
    typedef AhmedDofWrapper<CoordinateType> AhmedDofType;
    typedef ExtendedBemCluster<AhmedDofType> AhmedBemCluster;
    typedef bbxbemblcluster<AhmedDofType, AhmedDofType> AhmedBemBlcluster;

    static void constructBemCluster(
        const Space<BasisFunctionType>& space,
        bool indexWithGlobalDofs,
        const AcaOptions& acaOptions,
        shared_ptr<AhmedBemCluster>& cluster,
        shared_ptr<IndexPermutation>& o2p,
        shared_ptr<IndexPermutation>& p2o);

    static void constructBemCluster(
        const arma::Mat<CoordinateType>& points,
        int componentCount,
        const AcaOptions& acaOptions,
        shared_ptr<AhmedBemCluster>& cluster,
        shared_ptr<IndexPermutation>& o2p,
        shared_ptr<IndexPermutation>& p2o);

    static std::auto_ptr<AhmedBemBlcluster>
    constructBemBlockCluster(
        const AcaOptions& acaOptions,
        bool symmetric,
        AhmedBemCluster& testCluster,
        AhmedBemCluster& trialCluster,
            bool useStrongAdmissibilityCondition,
        unsigned int& blockCount);

    static void truncateBemBlockCluster(blcluster *cluster,
                                        const blcluster *refCluster);

    static void
    getComponentDofPositions(
            const arma::Mat<CoordinateType>& points,
            int componentCount,
            std::vector<Point3D<CoordinateType> >& positions);

    static void
    getComponentBoundingBoxes(
            const arma::Mat<CoordinateType>& points,
            int componentCount,
            std::vector<BoundingBox<CoordinateType> >& boundingBoxes);
};

} // namespace Bempp

#endif