uniform.cc

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/*
  Copyright (C) 2018-2024 by the authors of the World Builder code.

  This file is part of the World Builder.

   This program 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 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 Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#include "world_builder/features/fault_models/grains/uniform.h"


#include "world_builder/nan.h"
#include "world_builder/types/array.h"
#include "world_builder/types/double.h"
#include "world_builder/types/object.h"
#include "world_builder/types/unsigned_int.h"
#include "world_builder/utilities.h"


namespace WorldBuilder
{

  using namespace Utilities;

  namespace Features
  {
    namespace FaultModels
    {
      namespace Grains
      {
        Uniform::Uniform(WorldBuilder::World *world_)
          :
          min_depth(NaN::DSNAN),
          max_depth(NaN::DSNAN)

        {
          this->world = world_;
          this->name = "uniform";
        }

        Uniform::~Uniform()
          = default;

        void
        Uniform::declare_entries(Parameters &prm, const std::string & /*unused*/)
        {
          // Document plugin and require entries if needed.
          // Add compositions the required parameters.
          prm.declare_entry("", Types::Object({"compositions"}),
                            "Uniform grains model. All grains start exactly the same.");

          // Declare entries of this plugin
          prm.declare_entry("min distance fault center", Types::Double(0),
                            "The distance from the fault center in meters from which the composition of this feature is present.");
          prm.declare_entry("max distance fault center", Types::Double(std::numeric_limits<double>::max()),
                            "The distance from the fault in meters to which the composition of this feature is present.");

          prm.declare_entry("compositions", Types::Array(Types::UnsignedInt(),0),
                            "A list with the integer labels of the composition which are present there.");

          prm.declare_entry("rotation matrices", Types::Array(Types::Array(Types::Array(Types::Double(0),3,3),3,3),0),
                            "A list with the labels of the grains which are present there for each compositions.");

          prm.declare_entry("Euler angles z-x-z", Types::Array(Types::Array(Types::Double(0),3,3),0),
                            "A list with the z-x-z Euler angles of the grains which are present there for each compositions.");

          prm.declare_entry("orientation operation", Types::String("replace", std::vector<std::string> {"replace"}),
                            "Whether the value should replace any value previously defined at this location (replace) or "
                            "add the value to the previously define value (add, not implemented). Replacing implies that all values not "
                            "explicitly defined are set to zero.");

          prm.declare_entry("grain sizes",
                            Types::Array(Types::Double(-1),0),
                            "A list of the size of all of the grains in each composition. If set to <0, the size will be set so that the total is equal to 1.");


        }

        void
        Uniform::parse_entries(Parameters &prm)
        {
          min_depth = prm.get<double>("min distance fault center");
          max_depth = prm.get<double>("max distance fault center");
          compositions = prm.get_vector<unsigned int>("compositions");

          const bool set_euler_angles = prm.check_entry("Euler angles z-x-z");
          const bool set_rotation_matrices = prm.check_entry("rotation matrices");

          WBAssertThrow(!(set_euler_angles == true && set_rotation_matrices == true),
                        "Only Euler angles or Rotation matrices may be set, but both are set for " << prm.get_full_json_path());


          WBAssertThrow(!(set_euler_angles == false && set_rotation_matrices == false),
                        "Euler angles or Rotation matrices have to be set, but neither are set for " << prm.get_full_json_path());

          if (set_euler_angles)
            {
              std::vector<std::array<double,3> > euler_angles_vector = prm.get_vector<std::array<double,3> >("Euler angles z-x-z");
              rotation_matrices.resize(euler_angles_vector.size());
              for (size_t i = 0; i<euler_angles_vector.size(); ++i)
                {
                  rotation_matrices[i] = WorldBuilder::Utilities::euler_angles_to_rotation_matrix(euler_angles_vector[i][0],euler_angles_vector[i][1],euler_angles_vector[i][2]);
                }

            }
          else
            {
              rotation_matrices = prm.get_vector<std::array<std::array<double,3>,3> >("rotation matrices");
            }

          operation = prm.get<std::string>("orientation operation");
          grain_sizes = prm.get_vector<double>("grain sizes");


          WBAssertThrow(compositions.size() == rotation_matrices.size(),
                        "There are not the same amount of compositions (" << compositions.size()
                        << ") and rotation_matrices (" << rotation_matrices.size() << ").");
          WBAssertThrow(compositions.size() == grain_sizes.size(),
                        "There are not the same amount of compositions (" << compositions.size()
                        << ") and grain_sizes (" << grain_sizes.size() << ").");
        }


        WorldBuilder::grains
        Uniform::get_grains(const Point<3> & /*position_in_cartesian_coordinates*/,
                            const double /*depth*/,
                            const unsigned int composition_number,
                            WorldBuilder::grains grains_,
                            const double /*feature_min_depth*/,
                            const double /*feature_max_depth*/,
                            const WorldBuilder::Utilities::PointDistanceFromCurvedPlanes &distance_from_planes,
                            const AdditionalParameters & /*additional_parameters*/) const
        {
          WorldBuilder::grains  grains_local = grains_;
          if (std::fabs(distance_from_planes.distance_from_plane) <= max_depth && std::fabs(distance_from_planes.distance_from_plane) >= min_depth)
            {
              for (unsigned int i =0; i < compositions.size(); ++i)
                {
                  if (compositions[i] == composition_number)
                    {
                      std::fill(grains_local.rotation_matrices.begin(),grains_local.rotation_matrices.end(),rotation_matrices[i]);

                      const double size = grain_sizes[i] < 0 ? 1.0/static_cast<double>(grains_local.sizes.size()) :  grain_sizes[i];
                      std::fill(grains_local.sizes.begin(),grains_local.sizes.end(),size);

                      return grains_local;
                    }
                }
            }
          return grains_local;
        }
        WB_REGISTER_FEATURE_FAULT_GRAINS_MODEL(Uniform, uniform)
      } // namespace Grains
    } // namespace FaultModels
  } // namespace Features
} // namespace WorldBuilder