mc_interp.h

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/* Copyright (C) 2005-2008 Cory Davis <cory@met.ed.ac.uk>
                            
   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, 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. */



/*===========================================================================
  === File description 
  ===========================================================================*/

/*===========================================================================
  === External declarations
  ===========================================================================*/

#ifndef mc_interp_h
#define mc_interp_h
#include "arts.h"
#include "matpackI.h"
#include "array.h"
#include "interpolation.h"
#include "optproperties.h"
#include "ppath.h"

extern const Numeric DEG2RAD;
extern const Numeric RAD2DEG;
extern const Numeric PI;





class SLIData2
{
public:
  //grid of x1 values where y is known
  Vector x1a;
  //A vector of x2 values for every x1a
  ArrayOfVector x2a;
  //y values for every x1a, x2a
  ArrayOfVector ya;
  //performs SLI.
  Numeric interpolate(Numeric x1, Numeric x2) const;
  //checks that it is not empty
  //void check() const;
  
};

ostream& operator<< (ostream& os, const SLIData2& sli);


Matrix interp( ConstVectorView itw,
               ArrayOfMatrix a,    
               const GridPos&  tc );

Vector interp( ConstVectorView itw,
                ArrayOfVector a,    
               const GridPos&  tc );

void interp_scat_angle_temperature(//Output:
                                   VectorView pha_mat_int,
                                   Numeric& theta_rad,
                                   //Input:
                                   const SingleScatteringData& scat_data,
                                   const Numeric& za_sca,
                                   const Numeric& aa_sca,
                                   const Numeric& za_inc,
                                   const Numeric& aa_inc,
                                   const Numeric& rte_temperature
                                   );

void interpTArray(Matrix& T,
                  Vector& Kabs,
                  Numeric& temperature,
                  MatrixView&  K,
                  Vector& rte_pos,//maybe these should be VectorViews?
                  Vector& rte_los,
                  VectorView& pnd_vec,
                  const ArrayOfMatrix& TArray,
                  const ArrayOfMatrix& ext_matArray,
                  const ArrayOfVector& abs_vecArray,
                  const Vector& t_ppath,
                  const Matrix& pnd_ppath,
                  const Vector& cum_l_step,
                  const Numeric& pathlength,
                  const Index& stokes_dim,
                  const Ppath& ppath
                 );


#endif  // mc_interp_h

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