particle_distribution_statistics.h

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/*
  Copyright (C) 2025 - by the authors of the ASPECT code.
 
  This file is part of ASPECT.
 
  ASPECT 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.
 
  ASPECT 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 ASPECT; see the file LICENSE.  If not see
  <http://www.gnu.org/licenses/>.
*/
 
#ifndef _aspect_postprocess_particle_distribution_statistics_h
#define _aspect_postprocess_particle_distribution_statistics_h
 
#include <aspect/particle/distribution.h>
#include <deal.II/base/function_lib.h>
#include <aspect/particle/manager.h>
 
namespace aspect
{
  namespace Postprocess
  {
 
    template <int dim>
    class ParticleDistributionStatistics : public Interface<dim>, public ::aspect::SimulatorAccess<dim>
    {
      public:
        void initialize() override;
 
        std::pair<std::string,std::string>
        execute (TableHandler &statistics) override;
 
        std::list<std::string>
        required_other_postprocessors() const override;
 
        static
        void
        declare_parameters (ParameterHandler &prm);
 
        void
        parse_parameters (ParameterHandler &prm) override;
 
      private:
        bool KDE_per_particle;
 
        unsigned int granularity;
 
        double bandwidth;
 
        typename Particle::ParticlePDF<dim>::KernelFunction kernel_function;
 
        std::vector<typename Particles::ParticleHandler<dim>::particle_iterator_range>
        get_neighboring_particle_ranges(const typename Triangulation<dim>::active_cell_iterator &cell,
                                        const typename Particles::ParticleHandler<dim> &particle_handler);
 
        std::unique_ptr<GridTools::Cache<dim>> grid_cache;
    };
  }
}
 
 
#endif