rpc/fts/compressor/intra/IntraCorrelation.h

#ifndef RPC_INTRACORRELATION_H
#define RPC_INTRACORRELATION_H
 
/*
* PSCF - Polymer Self-Consistent Field Theory
*
* Copyright 2016 - 2022, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/
 
#include <util/param/ParamComposite.h>    // base class
#include <prdc/cpu/RField.h>              // member
#include <prdc/cpu/RFieldDft.h>           // member
#include <util/containers/DArray.h>       // member
 
namespace Pscf {
namespace Rpc
{
 
   template <int D> class System;
 
   using namespace Util;
   using namespace Pscf::Prdc::Cpu;
 
   template <int D>
   class IntraCorrelation : public ParamComposite
   {
 
   public:
 
      IntraCorrelation(System<D>& system);
 
      ~IntraCorrelation();
 
      double computeDebye(double x);
 
      double computeIntraCorrelation(double qSquare);
 
      RField<D> computeIntraCorrelations();
 
   protected:
 
      System<D>& system();
      
   private:
      
      System<D>* systemPtr_;
      
      IntVec<D> kMeshDimensions_;
      
      int kSize_;
   
   };
   
   // Get the parent system.
   template <int D>
   inline System<D>& IntraCorrelation<D>::system()
   {  return *systemPtr_; }
 
   
   #ifndef RPC_INTRACORRELATION_TPP
   // Suppress implicit instantiation
   extern template class IntraCorrelation<1>;
   extern template class IntraCorrelation<2>;
   extern template class IntraCorrelation<3>;
   #endif
 
} // namespace Rpc
} // namespace Pscf
#endif