GeneralizedBellAtomDensity.hpp

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/* 
 * GeneralizedBellAtomDensity.hpp 
 *
 * This file is part of the Chemical Data Processing Toolkit
 *
 * Copyright (C) 2003 Thomas Seidel <thomas.seidel@univie.ac.at>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#ifndef CDPL_GRAIL_GENERALIZEDBELLATOMDENSITY_HPP
#define CDPL_GRAIL_GENERALIZEDBELLATOMDENSITY_HPP
 
#include "CDPL/GRAIL/APIPrefix.hpp"
#include "CDPL/Math/Vector.hpp"
 
 
namespace CDPL
{
 
    namespace Chem
    {
 
        class Atom;
    }
 
    namespace GRAIL
    {
 
        class CDPL_GRAIL_API GeneralizedBellAtomDensity
        {
 
          public:
            static constexpr double DEF_PROBE_RADIUS          = 0.0;
 
            static constexpr double DEF_RADIUS_SCALING_FACTOR = 1.0;
 
            GeneralizedBellAtomDensity(double probe_radius = DEF_PROBE_RADIUS, double rad_scaling_factor = DEF_RADIUS_SCALING_FACTOR):
                probeRadius(probe_radius), radiusScalingFactor(rad_scaling_factor) {}
 
            double getProbeRadius() const;
 
            double getRadiusScalingFactor() const;
 
            double operator()(const Math::Vector3D& pos, const Math::Vector3D& atom_pos, const Chem::Atom& atom) const;
 
          private:
            double probeRadius;
            double radiusScalingFactor;
        };
    } // namespace GRAIL
} // namespace CDPL
 
#endif // CDPL_GRAIL_GENERALIZEDBELLATOMDENSITY_HPP