DTK_BuhmannBasis.hpp

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

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  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
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*/
//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//

#ifndef DTK_BUHMANNBASIS_HPP
#define DTK_BUHMANNBASIS_HPP

#include "DTK_RadialBasisPolicy.hpp"

#include <Teuchos_RCP.hpp>

namespace DataTransferKit
{

//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//
template <int ORDER>
class BuhmannBasis
{
  public:
    // Compute the value of the basis at the given set of coordinates.
    double evaluateValue( const double radius, const double x ) const;

    // Compute the gradient of the basis at the given set of coordinates.
    double evaluateGradient( const double radius, const double x ) const;
};

//---------------------------------------------------------------------------//
// RadialBasisPolicy implementation.
//---------------------------------------------------------------------------//
template <int ORDER>
class RadialBasisPolicy<BuhmannBasis<ORDER>>
{
  public:
    typedef BuhmannBasis<ORDER> spline_basis_type;

    static inline Teuchos::RCP<BuhmannBasis<ORDER>> create()
    {
        return Teuchos::rcp( new BuhmannBasis<ORDER>() );
    }

    static inline double evaluateValue( const BuhmannBasis<ORDER> &basis,
                                        const double radius, const double x )
    {
        return basis.evaluateValue( radius, x );
    }

    static inline double evaluateGradient( const BuhmannBasis<ORDER> &basis,
                                           const double radius, const double x )
    {
        return basis.evaluateGradient( radius, x );
    }
};

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

} // end namespace DataTransferKit

//---------------------------------------------------------------------------//
// Template includes.
//---------------------------------------------------------------------------//

#include "DTK_BuhmannBasis_impl.hpp"

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

#endif // end DTK_BUHMANNBASIS_HPP

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// end DTK_BuhmannBasis.hpp
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