DTK_SplineEvaluationMatrix.hpp

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//---------------------------------------------------------------------------//
/*
  Copyright (c) 2012, Stuart R. Slattery
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:

  *: Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

  *: Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

  *: Neither the name of the University of Wisconsin - Madison nor the
  names of its contributors may be used to endorse or promote products
  derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/
//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//

#ifndef DTK_SPLINEEVALUATIONMATRIX_HPP
#define DTK_SPLINEEVALUATIONMATRIX_HPP

#include "DTK_PolynomialMatrix.hpp"
#include "DTK_RadialBasisPolicy.hpp"
#include "DTK_SplineInterpolationPairing.hpp"

#include <Teuchos_ArrayView.hpp>
#include <Teuchos_RCP.hpp>

#include <Tpetra_CrsMatrix.hpp>
#include <Tpetra_Map.hpp>
#include <Tpetra_MultiVector.hpp>
#include <Tpetra_Operator.hpp>

namespace DataTransferKit
{
//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//
template <class Basis, int DIM>
class SplineEvaluationMatrix
{
  public:
    typedef RadialBasisPolicy<Basis> BP;

    // Constructor.
    SplineEvaluationMatrix(
        const Teuchos::RCP<const Tpetra::Map<int, SupportId>> &domain_map,
        const Teuchos::RCP<const Tpetra::Map<int, SupportId>> &range_map,
        const Teuchos::ArrayView<const double> &target_centers,
        const Teuchos::ArrayView<const SupportId> &target_center_gids,
        const Teuchos::ArrayView<const double> &dist_source_centers,
        const Teuchos::ArrayView<const SupportId> &dist_source_center_gids,
        const SplineInterpolationPairing<DIM> &target_pairings,
        const Basis &basis );

    // Get the basis component.
    Teuchos::RCP<Tpetra::Operator<double, int, SupportId>> getN()
    {
        return d_N;
    }

    // Get the polynomial component.
    Teuchos::RCP<Tpetra::Operator<double, int, SupportId>> getQ()
    {
        return d_Q;
    }

  private:
    // The N matrix.
    Teuchos::RCP<Tpetra::CrsMatrix<double, int, SupportId>> d_N;

    // The Q matrix.
    Teuchos::RCP<PolynomialMatrix> d_Q;
};

//---------------------------------------------------------------------------//

} // end namespace DataTransferKit

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#endif // end DTK_SPLINEEVALUATIONMATRIX_HPP

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// end DTK_SplineEvaluationMatrix.hpp
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