frequencyhandler.h

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/*
  This file is part of MADNESS.
  
  Copyright (C) 2007,2010 Oak Ridge National Laboratory
  
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
  
  This program 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 General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  
  For more information please contact:
  
  Robert J. Harrison
  Oak Ridge National Laboratory
  One Bethel Valley Road
  P.O. Box 2008, MS-6367
  
  email: harrisonrj@ornl.gov
  tel:   865-241-3937
  fax:   865-572-0680
  
  $Id$
*/
#ifndef __frequency_handler__
#define __frequency_handler__

#include <string>
#include <madness/constants.h>
#include <madness/mra/mra.h>
#include "envelopedpulse.h"

using namespace std;
using namespace madness;

typedef double_complex complexd;
typedef Function<complexd, 3> function;
typedef Vector<function, 3> vecfunc;

class FrequencyHandler {
public:
        const int freq_index;
        Vector<Function<double, 3>, 3> inc; //< the 3-D incident pulse
        vecfunc scat; //< the 3-D scattered field
        const EnvelopedPulse &pulse; //< The incident pulse / simulation parameters
        World &world; //< The World to use when making functions

        FrequencyHandler(const int freq, const EnvelopedPulse &_pulse,
                World &_world) : freq_index(freq), pulse(_pulse), world(_world) {}

        bool read_file();
};

class FrequencyIncident : public FunctionFunctorInterface<double, 3> {
protected:
        const EnvelopedPulse &pulse; //< The incident pulse / simulation parameters
        const CubicInterpolationTable<double> &interp; //< The interpolation data

public:
        FrequencyIncident(const EnvelopedPulse &_pulse,
                const CubicInterpolationTable<double> &_interp) : pulse(_pulse),
                interp(_interp) {}

        double operator() (const Vector<double, 3> &pt) const;
};

#endif