27319341588

Committed 11 Jun 2026 02:16AM UTC coverage: 81.244% (-0.04%) from 81.281%

Build # 27319341588

Build Type

Pull #3969

github

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web-flow

Commit Message

Merge 25a68b6ea into 02eb999af

Pull Request Pull Request #3969: Overlap detection for plotter

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82.72

/src/geometry.cpp

#include "openmc/geometry.h"

#include <fmt/core.h>
#include <fmt/ostream.h>

#include "openmc/array.h"
#include "openmc/cell.h"
#include "openmc/constants.h"
#include "openmc/error.h"
#include "openmc/lattice.h"
#include "openmc/settings.h"
#include "openmc/simulation.h"
#include "openmc/string_utils.h"
#include "openmc/surface.h"

namespace openmc {

//==============================================================================
// Global variables
//==============================================================================

namespace model {

int root_universe {-1};
int n_coord_levels;

vector<int64_t> overlap_check_count;

} // namespace model

//==============================================================================
// Non-member functions
//==============================================================================

OverlapResult check_cell_overlap(GeometryState& p, bool error)
{
  OverlapResult overlaps;
  int n_coord = p.n_coord();

  // Loop through each coordinate level
  for (int j = 0; j < n_coord; j++) {
    Universe& univ = *model::universes[p.coord(j).universe()];

    // Loop through each cell on this level
    for (auto index_cell : univ.cells_) {
      Cell& c = *model::cells[index_cell];
      if (c.contains(p.coord(j).r(), p.coord(j).u(), p.surface())) {
        if (index_cell != p.coord(j).cell()) {
          if (error) {
            fatal_error(
              fmt::format("Overlapping cells detected: {}, {} on universe {}",
                c.id_, model::cells[p.coord(j).cell()]->id_, univ.id_));
          }

          // With no fatal error (plotter is calling), now adds overlaps and
          // calls them; ensures order does not matter when making overlap key
          int cell_a = model::cells[index_cell]->id_;
          int cell_b = model::cells[p.coord(j).cell()]->id_;
          int a = std::min(cell_a, cell_b);
          int b = std::max(cell_a, cell_b);
          OverlapKey key {univ.id_, a, b};

          // in case of duplicates
          if (std::find(overlaps.pairs.begin(), overlaps.pairs.end(), key) ==
              overlaps.pairs.end()) {
            overlaps.pairs.push_back(key);
          }
        }
#pragma omp atomic
        ++model::overlap_check_count[index_cell];
      }
    }
  }

  return overlaps;
}

//==============================================================================

int cell_instance_at_level(const GeometryState& p, int level)
{
  // throw error if the requested level is too deep for the geometry
  if (level > model::n_coord_levels) {
    fatal_error(fmt::format("Cell instance at level {} requested, but only {} "
                            "levels exist in the geometry.",
      level, p.n_coord()));
  }

  // determine the cell instance
  Cell& c {*model::cells[p.coord(level).cell()]};

  // quick exit if this cell doesn't have distribcell instances
  if (c.distribcell_index_ == C_NONE)
    return C_NONE;

  // compute the cell's instance
  int instance = 0;
  for (int i = 0; i < level; i++) {
    const auto& c_i {*model::cells[p.coord(i).cell()]};
    if (c_i.type_ == Fill::UNIVERSE) {
      instance += c_i.offset_[c.distribcell_index_];
    } else if (c_i.type_ == Fill::LATTICE) {
      instance += c_i.offset_[c.distribcell_index_];
      auto& lat {*model::lattices[p.coord(i + 1).lattice()]};
      const auto& i_xyz {p.coord(i + 1).lattice_index()};
      if (lat.are_valid_indices(i_xyz)) {
        instance += lat.offset(c.distribcell_index_, i_xyz);
      }
    }
  }
  return instance;
}

//==============================================================================

bool find_cell_inner(
  GeometryState& p, const NeighborList* neighbor_list, bool verbose)
{
  // Find which cell of this universe the particle is in.  Use the neighbor list
  // to shorten the search if one was provided.
  bool found = false;
  int32_t i_cell = C_NONE;
  if (neighbor_list) {
    for (auto it = neighbor_list->cbegin(); it != neighbor_list->cend(); ++it) {
      i_cell = *it;

      // Make sure the search cell is in the same universe.
      int i_universe = p.lowest_coord().universe();
      if (model::cells[i_cell]->universe_ != i_universe)
        continue;

      // Check if this cell contains the particle.
      Position r {p.r_local()};
      Direction u {p.u_local()};
      auto surf = p.surface();
      if (model::cells[i_cell]->contains(r, u, surf)) {
        p.lowest_coord().cell() = i_cell;
        found = true;
        break;
      }
    }

    // If we're attempting a neighbor list search and fail, we
    // now know we should return false. This will trigger an
    // exhaustive search from neighbor_list_find_cell and make
    // the result from that be appended to the neighbor list.
    if (!found) {
      return found;
    }
  }

  // Check successively lower coordinate levels until finding material fill
  for (;; ++p.n_coord()) {
    // If we did not attempt to use neighbor lists, i_cell is still C_NONE.  In
    // that case, we should now do an exhaustive search to find the right value
    // of i_cell.
    //
    // Alternatively, neighbor list searches could have succeeded, but we found
    // that the fill of the neighbor cell was another universe. As such, in the
    // code below this conditional, we set i_cell back to C_NONE to indicate
    // that.
    if (i_cell == C_NONE) {
      int i_universe = p.lowest_coord().universe();
      const auto& univ {model::universes[i_universe]};
      found = univ->find_cell(p);
    }

    if (!found) {
      return found;
    }
    i_cell = p.lowest_coord().cell();

    // Announce the cell that the particle is entering.
    if (found && verbose) {
      auto msg = fmt::format("    Entering cell {}", model::cells[i_cell]->id_);
      write_message(msg, 1);
    }

    Cell& c {*model::cells[i_cell]};
    if (c.type_ == Fill::MATERIAL) {
      // Found a material cell which means this is the lowest coord level.

      p.cell_instance() = 0;
      // Find the distribcell instance number.
      if (c.distribcell_index_ >= 0) {
        p.cell_instance() = cell_instance_at_level(p, p.n_coord() - 1);
      }

      // Set the material, temperature and density multiplier.
      p.material_last() = p.material();
      p.material() = c.material(p.cell_instance());
      p.sqrtkT_last() = p.sqrtkT();
      p.sqrtkT() = c.sqrtkT(p.cell_instance());
      p.density_mult_last() = p.density_mult();
      p.density_mult() = c.density_mult(p.cell_instance());

      return true;

    } else if (c.type_ == Fill::UNIVERSE) {
      //========================================================================
      //! Found a lower universe, update this coord level then search the next.

      // Set the lower coordinate level universe.
      auto& coord {p.coord(p.n_coord())};
      coord.universe() = c.fill_;

      // Set the position and direction.
      coord.r() = p.r_local();
      coord.u() = p.u_local();

      // Apply translation.
      coord.r() -= c.translation_;

      // Apply rotation.
      if (!c.rotation_.empty()) {
        coord.rotate(c.rotation_);
      }

    } else if (c.type_ == Fill::LATTICE) {
      //========================================================================
      //! Found a lower lattice, update this coord level then search the next.

      Lattice& lat {*model::lattices[c.fill_]};

      // Set the position and direction.
      auto& coord {p.coord(p.n_coord())};
      coord.r() = p.r_local();
      coord.u() = p.u_local();

      // Apply translation.
      coord.r() -= c.translation_;

      // Apply rotation.
      if (!c.rotation_.empty()) {
        coord.rotate(c.rotation_);
      }

      // Determine lattice indices.
      auto& i_xyz {coord.lattice_index()};
      lat.get_indices(coord.r(), coord.u(), i_xyz);

      // Get local position in appropriate lattice cell
      coord.r() = lat.get_local_position(coord.r(), i_xyz);

      // Set lattice indices.
      coord.lattice() = c.fill_;

      // Set the lower coordinate level universe.
      if (lat.are_valid_indices(i_xyz)) {
        coord.universe() = lat[i_xyz];
      } else {
        if (lat.outer_ != NO_OUTER_UNIVERSE) {
          coord.universe() = lat.outer_;
        } else {
          p.mark_as_lost(fmt::format(
            "Particle {} left lattice {}, but it has no outer definition.",
            p.id(), lat.id_));
        }
      }
    }
    i_cell = C_NONE; // trip non-neighbor cell search at next iteration
    found = false;
  }

  return found;
}

//==============================================================================

bool neighbor_list_find_cell(GeometryState& p, bool verbose)
{

  // Reset all the deeper coordinate levels.
  for (int i = p.n_coord(); i < model::n_coord_levels; i++) {
    p.coord(i).reset();
  }

  // Get the cell this particle was in previously.
  auto coord_lvl = p.n_coord() - 1;
  auto i_cell = p.coord(coord_lvl).cell();
  Cell& c {*model::cells[i_cell]};

  // Search for the particle in that cell's neighbor list.  Return if we
  // found the particle.
  bool found = find_cell_inner(p, &c.neighbors_, verbose);
  if (found)
    return found;

  // The particle could not be found in the neighbor list.  Try searching all
  // cells in this universe, and update the neighbor list if we find a new
  // neighboring cell.
  found = find_cell_inner(p, nullptr, verbose);
  if (found)
    c.neighbors_.push_back(p.coord(coord_lvl).cell());
  return found;
}

bool exhaustive_find_cell(GeometryState& p, bool verbose)
{
  int i_universe = p.lowest_coord().universe();
  if (i_universe == C_NONE) {
    p.coord(0).universe() = model::root_universe;
    p.n_coord() = 1;
    i_universe = model::root_universe;
  }
  // Reset all the deeper coordinate levels.
  for (int i = p.n_coord(); i < model::n_coord_levels; i++) {
    p.coord(i).reset();
  }
  return find_cell_inner(p, nullptr, verbose);
}

//==============================================================================

void cross_lattice(GeometryState& p, const BoundaryInfo& boundary, bool verbose)
{
  auto& coord {p.lowest_coord()};
  auto& lat {*model::lattices[coord.lattice()]};

  if (verbose) {
    write_message(
      fmt::format("    Crossing lattice {}. Current position ({},{},{}). r={}",
        lat.id_, coord.lattice_index()[0], coord.lattice_index()[1],
        coord.lattice_index()[2], p.r()),
      1);
  }

  // Set the lattice indices.
  coord.lattice_index()[0] += boundary.lattice_translation()[0];
  coord.lattice_index()[1] += boundary.lattice_translation()[1];
  coord.lattice_index()[2] += boundary.lattice_translation()[2];

  // Set the new coordinate position.
  const auto& upper_coord {p.coord(p.n_coord() - 2)};
  const auto& cell {model::cells[upper_coord.cell()]};
  Position r = upper_coord.r();
  r -= cell->translation_;
  if (!cell->rotation_.empty()) {
    r = r.rotate(cell->rotation_);
  }
  p.r_local() = lat.get_local_position(r, coord.lattice_index());

  if (!lat.are_valid_indices(coord.lattice_index())) {
    // The particle is outside the lattice.  Search for it from the base coords.
    p.n_coord() = 1;
    bool found = exhaustive_find_cell(p);

    if (!found) {
      p.mark_as_lost(fmt::format("Particle {} could not be located after "
                                 "crossing a boundary of lattice {}",
        p.id(), lat.id_));
    }

  } else {
    // Find cell in next lattice element.
    p.lowest_coord().universe() = lat[coord.lattice_index()];
    bool found = exhaustive_find_cell(p);

    if (!found) {
      // A particle crossing the corner of a lattice tile may not be found.  In
      // this case, search for it from the base coords.
      p.n_coord() = 1;
      bool found = exhaustive_find_cell(p);
      if (!found) {
        p.mark_as_lost(fmt::format("Particle {} could not be located after "
                                   "crossing a boundary of lattice {}",
          p.id(), lat.id_));
      }
    }
  }
}

//==============================================================================

BoundaryInfo distance_to_boundary(GeometryState& p)
{
  BoundaryInfo info;
  double d_lat = INFINITY;
  double d_surf = INFINITY;
  int32_t level_surf_cross;
  array<int, 3> level_lat_trans {};

  // Loop over each coordinate level.
  for (int i = 0; i < p.n_coord(); i++) {
    const auto& coord {p.coord(i)};
    const Position& r {coord.r()};
    const Direction& u {coord.u()};
    Cell& c {*model::cells[coord.cell()]};

    // Find the oncoming surface in this cell and the distance to it.
    auto surface_distance = c.distance(r, u, p.surface(), &p);
    d_surf = surface_distance.first;
    level_surf_cross = surface_distance.second;

    // Find the distance to the next lattice tile crossing.
    if (coord.lattice() != C_NONE) {
      auto& lat {*model::lattices[coord.lattice()]};
      // TODO: refactor so both lattice use the same position argument (which
      // also means the lat.type attribute can be removed)
      std::pair<double, array<int, 3>> lattice_distance;
      switch (lat.type_) {
      case LatticeType::rect:
        lattice_distance = lat.distance(r, u, coord.lattice_index());
        break;
      case LatticeType::hex:
        auto& cell_above {model::cells[p.coord(i - 1).cell()]};
        Position r_hex {p.coord(i - 1).r()};
        r_hex -= cell_above->translation_;
        if (coord.rotated()) {
          r_hex = r_hex.rotate(cell_above->rotation_);
        }
        r_hex.z = coord.r().z;
        lattice_distance = lat.distance(r_hex, u, coord.lattice_index());
        break;
      }
      d_lat = lattice_distance.first;
      level_lat_trans = lattice_distance.second;

      if (d_lat < 0) {
        p.mark_as_lost(fmt::format("Particle {} had a negative distance "
                                   "to a lattice boundary.",
          p.id()));
      }
    }

    // If the boundary on this coordinate level is coincident with a boundary on
    // a higher level then we need to make sure that the higher level boundary
    // is selected.  This logic must consider floating point precision.
    double& d = info.distance();
    if (d_surf < d_lat - FP_COINCIDENT) {
      if (d == INFINITY || (d - d_surf) / d >= FP_REL_PRECISION) {
        // Update closest distance
        d = d_surf;

        // If the cell is not simple, it is possible that both the negative and
        // positive half-space were given in the region specification. Thus, we
        // have to explicitly check which half-space the particle would be
        // traveling into if the surface is crossed
        if (c.is_simple() || d == INFTY) {
          info.surface() = level_surf_cross;
        } else {
          Position r_hit = r + d_surf * u;
          Surface& surf {*model::surfaces[std::abs(level_surf_cross) - 1]};
          Direction norm = surf.normal(r_hit);
          if (u.dot(norm) > 0) {
            info.surface() = std::abs(level_surf_cross);
          } else {
            info.surface() = -std::abs(level_surf_cross);
          }
        }

        info.lattice_translation()[0] = 0;
        info.lattice_translation()[1] = 0;
        info.lattice_translation()[2] = 0;
        info.coord_level() = i + 1;
      }
    } else {
      if (d == INFINITY || (d - d_lat) / d >= FP_REL_PRECISION) {
        d = d_lat;
        info.surface() = SURFACE_NONE;
        info.lattice_translation() = level_lat_trans;
        info.coord_level() = i + 1;
      }
    }
  }
  return info;
}

//==============================================================================
// C API
//==============================================================================

extern "C" int openmc_find_cell(
  const double* xyz, int32_t* index, int32_t* instance)
{
  GeometryState geom_state;

  geom_state.r() = Position {xyz};
  geom_state.u() = {0.0, 0.0, 1.0};

  if (!exhaustive_find_cell(geom_state)) {
    set_errmsg(
      fmt::format("Could not find cell at position {}.", geom_state.r()));
    return OPENMC_E_GEOMETRY;
  }

  *index = geom_state.lowest_coord().cell();
  *instance = geom_state.cell_instance();
  return 0;
}

extern "C" int openmc_global_bounding_box(double* llc, double* urc)
{
  auto bbox = model::universes.at(model::root_universe)->bounding_box();

  // set lower left corner values
  llc[0] = bbox.min.x;
  llc[1] = bbox.min.y;
  llc[2] = bbox.min.z;

  // set upper right corner values
  urc[0] = bbox.max.x;
  urc[1] = bbox.max.y;
  urc[2] = bbox.max.z;

  return 0;
}

} // namespace openmc

1	#include "openmc/geometry.h"
2
3	#include <fmt/core.h>
4	#include <fmt/ostream.h>
5
6	#include "openmc/array.h"
7	#include "openmc/cell.h"
8	#include "openmc/constants.h"
9	#include "openmc/error.h"
10	#include "openmc/lattice.h"
11	#include "openmc/settings.h"
12	#include "openmc/simulation.h"
13	#include "openmc/string_utils.h"
14	#include "openmc/surface.h"
15
16	namespace openmc {
17
18	//==============================================================================
19	// Global variables
20	//==============================================================================
21
22	namespace model {
23
24	int root_universe {-1};
25	int n_coord_levels;
26
27	vector<int64_t> overlap_check_count;
28
29	} // namespace model
30
31	//==============================================================================
32	// Non-member functions
33	//==============================================================================
34
35	OverlapResult check_cell_overlap(GeometryState& p, bool error)	1,389,300✔
36	{
37	OverlapResult overlaps;	1,389,300✔
38	int n_coord = p.n_coord();	1,389,300✔
39
40	// Loop through each coordinate level
41	for (int j = 0; j < n_coord; j++) {	2,778,600✔
42	Universe& univ = *model::universes[p.coord(j).universe()];	1,389,300✔
43
44	// Loop through each cell on this level
45	for (auto index_cell : univ.cells_) {	5,120,500✔
46	Cell& c = *model::cells[index_cell];	3,731,200✔
47	if (c.contains(p.coord(j).r(), p.coord(j).u(), p.surface())) {	3,731,200✔
48	if (index_cell != p.coord(j).cell()) {	1,323,234✔
49	if (error) {	381,260!
50	fatal_error(	×
51	fmt::format("Overlapping cells detected: {}, {} on universe {}",	×
52	c.id_, model::cells[p.coord(j).cell()]->id_, univ.id_));	×
53	}
54
55	// With no fatal error (plotter is calling), now adds overlaps and
56	// calls them; ensures order does not matter when making overlap key
57	int cell_a = model::cells[index_cell]->id_;	381,260!
58	int cell_b = model::cells[p.coord(j).cell()]->id_;	381,260!
59	int a = std::min(cell_a, cell_b);	381,260!
60	int b = std::max(cell_a, cell_b);	381,260!
61	OverlapKey key {univ.id_, a, b};	381,260✔
62
63	// in case of duplicates
64	if (std::find(overlaps.pairs.begin(), overlaps.pairs.end(), key) ==	381,260✔
65	overlaps.pairs.end()) {	381,260!
66	overlaps.pairs.push_back(key);	381,260✔
67	}
68	}
69	#pragma omp atomic	721,764✔
70	++model::overlap_check_count[index_cell];	1,323,234✔
71	}
72	}
73	}
74
75	return overlaps;	1,389,300✔
UNCOV 76	}	×
77
78	//==============================================================================
79
80	int cell_instance_at_level(const GeometryState& p, int level)	2,147,483,647✔
81	{
82	// throw error if the requested level is too deep for the geometry
83	if (level > model::n_coord_levels) {	2,147,483,647!
84	fatal_error(fmt::format("Cell instance at level {} requested, but only {} "	×
85	"levels exist in the geometry.",
86	level, p.n_coord()));
87	}
88
89	// determine the cell instance
90	Cell& c {*model::cells[p.coord(level).cell()]};	2,147,483,647!
91
92	// quick exit if this cell doesn't have distribcell instances
93	if (c.distribcell_index_ == C_NONE)	2,147,483,647!
94	return C_NONE;
95
96	// compute the cell's instance
97	int instance = 0;
98	for (int i = 0; i < level; i++) {	2,147,483,647✔
99	const auto& c_i {*model::cells[p.coord(i).cell()]};	2,147,483,647✔
100	if (c_i.type_ == Fill::UNIVERSE) {	2,147,483,647✔
101	instance += c_i.offset_[c.distribcell_index_];	1,890,585,059✔
102	} else if (c_i.type_ == Fill::LATTICE) {	1,299,445,065!
103	instance += c_i.offset_[c.distribcell_index_];	1,299,445,065✔
104	auto& lat {*model::lattices[p.coord(i + 1).lattice()]};	1,299,445,065✔
105	const auto& i_xyz {p.coord(i + 1).lattice_index()};	1,299,445,065✔
106	if (lat.are_valid_indices(i_xyz)) {	1,299,445,065✔
107	instance += lat.offset(c.distribcell_index_, i_xyz);	1,294,561,098✔
108	}
109	}
110	}
111	return instance;
112	}
113
114	//==============================================================================
115
116	bool find_cell_inner(	2,147,483,647✔
117	GeometryState& p, const NeighborList* neighbor_list, bool verbose)
118	{
119	// Find which cell of this universe the particle is in. Use the neighbor list
120	// to shorten the search if one was provided.
121	bool found = false;	2,147,483,647✔
122	int32_t i_cell = C_NONE;	2,147,483,647✔
123	if (neighbor_list) {	2,147,483,647✔
124	for (auto it = neighbor_list->cbegin(); it != neighbor_list->cend(); ++it) {	2,147,483,647✔
125	i_cell = *it;	2,147,483,647!
126
127	// Make sure the search cell is in the same universe.
128	int i_universe = p.lowest_coord().universe();	2,147,483,647!
129	if (model::cells[i_cell]->universe_ != i_universe)	2,147,483,647!
130	continue;	×
131
132	// Check if this cell contains the particle.
133	Position r {p.r_local()};	2,147,483,647✔
134	Direction u {p.u_local()};	2,147,483,647✔
135	auto surf = p.surface();	2,147,483,647✔
136	if (model::cells[i_cell]->contains(r, u, surf)) {	2,147,483,647✔
137	p.lowest_coord().cell() = i_cell;	2,147,483,647✔
138	found = true;	2,147,483,647✔
139	break;	2,147,483,647✔
140	}
141	}
142
143	// If we're attempting a neighbor list search and fail, we
144	// now know we should return false. This will trigger an
145	// exhaustive search from neighbor_list_find_cell and make
146	// the result from that be appended to the neighbor list.
147	if (!found) {	2,147,483,647✔
148	return found;
149	}
150	}
151
152	// Check successively lower coordinate levels until finding material fill
153	for (;; ++p.n_coord()) {	2,147,483,647✔
154	// If we did not attempt to use neighbor lists, i_cell is still C_NONE. In
155	// that case, we should now do an exhaustive search to find the right value
156	// of i_cell.
157	//
158	// Alternatively, neighbor list searches could have succeeded, but we found
159	// that the fill of the neighbor cell was another universe. As such, in the
160	// code below this conditional, we set i_cell back to C_NONE to indicate
161	// that.
162	if (i_cell == C_NONE) {	2,147,483,647✔
163	int i_universe = p.lowest_coord().universe();	2,147,483,647✔
164	const auto& univ {model::universes[i_universe]};	2,147,483,647✔
165	found = univ->find_cell(p);	2,147,483,647✔
166	}
167
168	if (!found) {	2,147,483,647✔
169	return found;
170	}
171	i_cell = p.lowest_coord().cell();	2,147,483,647!
172
173	// Announce the cell that the particle is entering.
174	if (found && verbose) {	2,147,483,647!
175	auto msg = fmt::format(" Entering cell {}", model::cells[i_cell]->id_);	×
176	write_message(msg, 1);	×
177	}	×
178
179	Cell& c {*model::cells[i_cell]};	2,147,483,647✔
180	if (c.type_ == Fill::MATERIAL) {	2,147,483,647✔
181	// Found a material cell which means this is the lowest coord level.
182
183	p.cell_instance() = 0;	2,147,483,647✔
184	// Find the distribcell instance number.
185	if (c.distribcell_index_ >= 0) {	2,147,483,647✔
186	p.cell_instance() = cell_instance_at_level(p, p.n_coord() - 1);	2,147,483,647✔
187	}
188
189	// Set the material, temperature and density multiplier.
190	p.material_last() = p.material();	2,147,483,647✔
191	p.material() = c.material(p.cell_instance());	2,147,483,647✔
192	p.sqrtkT_last() = p.sqrtkT();	2,147,483,647✔
193	p.sqrtkT() = c.sqrtkT(p.cell_instance());	2,147,483,647✔
194	p.density_mult_last() = p.density_mult();	2,147,483,647✔
195	p.density_mult() = c.density_mult(p.cell_instance());	2,147,483,647✔
196
197	return true;	2,147,483,647✔
198
199	} else if (c.type_ == Fill::UNIVERSE) {	1,153,950,791✔
200	//========================================================================
201	//! Found a lower universe, update this coord level then search the next.
202
203	// Set the lower coordinate level universe.
204	auto& coord {p.coord(p.n_coord())};	1,001,796,492✔
205	coord.universe() = c.fill_;	1,001,796,492✔
206
207	// Set the position and direction.
208	coord.r() = p.r_local();	1,001,796,492✔
209	coord.u() = p.u_local();	1,001,796,492✔
210
211	// Apply translation.
212	coord.r() -= c.translation_;	1,001,796,492✔
213
214	// Apply rotation.
215	if (!c.rotation_.empty()) {	1,001,796,492✔
216	coord.rotate(c.rotation_);	66,157,597✔
217	}
218
219	} else if (c.type_ == Fill::LATTICE) {	152,154,299!
220	//========================================================================
221	//! Found a lower lattice, update this coord level then search the next.
222
223	Lattice& lat {*model::lattices[c.fill_]};	152,154,299✔
224
225	// Set the position and direction.
226	auto& coord {p.coord(p.n_coord())};	152,154,299✔
227	coord.r() = p.r_local();	152,154,299✔
228	coord.u() = p.u_local();	152,154,299✔
229
230	// Apply translation.
231	coord.r() -= c.translation_;	152,154,299✔
232
233	// Apply rotation.
234	if (!c.rotation_.empty()) {	152,154,299✔
235	coord.rotate(c.rotation_);	358,336✔
236	}
237
238	// Determine lattice indices.
239	auto& i_xyz {coord.lattice_index()};	152,154,299✔
240	lat.get_indices(coord.r(), coord.u(), i_xyz);	152,154,299✔
241
242	// Get local position in appropriate lattice cell
243	coord.r() = lat.get_local_position(coord.r(), i_xyz);	152,154,299✔
244
245	// Set lattice indices.
246	coord.lattice() = c.fill_;	152,154,299✔
247
248	// Set the lower coordinate level universe.
249	if (lat.are_valid_indices(i_xyz)) {	152,154,299✔
250	coord.universe() = lat[i_xyz];	147,270,332✔
251	} else {
252	if (lat.outer_ != NO_OUTER_UNIVERSE) {	4,883,967!
253	coord.universe() = lat.outer_;	4,883,967✔
254	} else {
255	p.mark_as_lost(fmt::format(	×
256	"Particle {} left lattice {}, but it has no outer definition.",
257	p.id(), lat.id_));	×
258	}
259	}
260	}
261	i_cell = C_NONE; // trip non-neighbor cell search at next iteration	1,153,950,791✔
262	found = false;	1,153,950,791✔
263	}
264
265	return found;
266	}
267
268	//==============================================================================
269
270	bool neighbor_list_find_cell(GeometryState& p, bool verbose)	2,147,483,647✔
271	{
272
273	// Reset all the deeper coordinate levels.
274	for (int i = p.n_coord(); i < model::n_coord_levels; i++) {	2,147,483,647✔
275	p.coord(i).reset();	1,923,569,055✔
276	}
277
278	// Get the cell this particle was in previously.
279	auto coord_lvl = p.n_coord() - 1;	2,147,483,647✔
280	auto i_cell = p.coord(coord_lvl).cell();	2,147,483,647✔
281	Cell& c {*model::cells[i_cell]};	2,147,483,647✔
282
283	// Search for the particle in that cell's neighbor list. Return if we
284	// found the particle.
285	bool found = find_cell_inner(p, &c.neighbors_, verbose);	2,147,483,647✔
286	if (found)	2,147,483,647✔
287	return found;
288
289	// The particle could not be found in the neighbor list. Try searching all
290	// cells in this universe, and update the neighbor list if we find a new
291	// neighboring cell.
292	found = find_cell_inner(p, nullptr, verbose);	1,602,114✔
293	if (found)	1,602,114✔
294	c.neighbors_.push_back(p.coord(coord_lvl).cell());	30,377✔
295	return found;
296	}
297
298	bool exhaustive_find_cell(GeometryState& p, bool verbose)	1,364,725,499✔
299	{
300	int i_universe = p.lowest_coord().universe();	1,364,725,499✔
301	if (i_universe == C_NONE) {	1,364,725,499✔
302	p.coord(0).universe() = model::root_universe;	343,490,053✔
303	p.n_coord() = 1;	343,490,053✔
304	i_universe = model::root_universe;	343,490,053✔
305	}
306	// Reset all the deeper coordinate levels.
307	for (int i = p.n_coord(); i < model::n_coord_levels; i++) {	1,452,554,727✔
308	p.coord(i).reset();	87,829,228✔
309	}
310	return find_cell_inner(p, nullptr, verbose);	1,364,725,499✔
311	}
312
313	//==============================================================================
314
315	void cross_lattice(GeometryState& p, const BoundaryInfo& boundary, bool verbose)	801,265,642✔
316	{
317	auto& coord {p.lowest_coord()};	801,265,642!
318	auto& lat {*model::lattices[coord.lattice()]};	801,265,642!
319
320	if (verbose) {	801,265,642!
321	write_message(	×
322	fmt::format(" Crossing lattice {}. Current position ({},{},{}). r={}",	×
323	lat.id_, coord.lattice_index()[0], coord.lattice_index()[1],	×
324	coord.lattice_index()[2], p.r()),	×
325	1);
326	}
327
328	// Set the lattice indices.
329	coord.lattice_index()[0] += boundary.lattice_translation()[0];	801,265,642✔
330	coord.lattice_index()[1] += boundary.lattice_translation()[1];	801,265,642✔
331	coord.lattice_index()[2] += boundary.lattice_translation()[2];	801,265,642✔
332
333	// Set the new coordinate position.
334	const auto& upper_coord {p.coord(p.n_coord() - 2)};	801,265,642✔
335	const auto& cell {model::cells[upper_coord.cell()]};	801,265,642✔
336	Position r = upper_coord.r();	801,265,642✔
337	r -= cell->translation_;	801,265,642✔
338	if (!cell->rotation_.empty()) {	801,265,642✔
339	r = r.rotate(cell->rotation_);	471,647✔
340	}
341	p.r_local() = lat.get_local_position(r, coord.lattice_index());	801,265,642✔
342
343	if (!lat.are_valid_indices(coord.lattice_index())) {	801,265,642✔
344	// The particle is outside the lattice. Search for it from the base coords.
345	p.n_coord() = 1;	3,714,425✔
346	bool found = exhaustive_find_cell(p);	3,714,425✔
347
348	if (!found) {	3,714,425!
349	p.mark_as_lost(fmt::format("Particle {} could not be located after "	×
350	"crossing a boundary of lattice {}",
351	p.id(), lat.id_));	×
352	}
353
354	} else {
355	// Find cell in next lattice element.
356	p.lowest_coord().universe() = lat[coord.lattice_index()];	797,551,217✔
357	bool found = exhaustive_find_cell(p);	797,551,217✔
358
359	if (!found) {	797,551,217!
360	// A particle crossing the corner of a lattice tile may not be found. In
361	// this case, search for it from the base coords.
362	p.n_coord() = 1;	×
363	bool found = exhaustive_find_cell(p);	×
364	if (!found) {	×
365	p.mark_as_lost(fmt::format("Particle {} could not be located after "	×
366	"crossing a boundary of lattice {}",
367	p.id(), lat.id_));	×
368	}
369	}
370	}
371	}	801,265,642✔
372
373	//==============================================================================
374
375	BoundaryInfo distance_to_boundary(GeometryState& p)	2,147,483,647✔
376	{
377	BoundaryInfo info;	2,147,483,647✔
378	double d_lat = INFINITY;	2,147,483,647✔
379	double d_surf = INFINITY;	2,147,483,647✔
380	int32_t level_surf_cross;	2,147,483,647✔
381	array<int, 3> level_lat_trans {};	2,147,483,647✔
382
383	// Loop over each coordinate level.
384	for (int i = 0; i < p.n_coord(); i++) {	2,147,483,647✔
385	const auto& coord {p.coord(i)};	2,147,483,647✔
386	const Position& r {coord.r()};	2,147,483,647✔
387	const Direction& u {coord.u()};	2,147,483,647✔
388	Cell& c {*model::cells[coord.cell()]};	2,147,483,647✔
389
390	// Find the oncoming surface in this cell and the distance to it.
391	auto surface_distance = c.distance(r, u, p.surface(), &p);	2,147,483,647✔
392	d_surf = surface_distance.first;	2,147,483,647✔
393	level_surf_cross = surface_distance.second;	2,147,483,647✔
394
395	// Find the distance to the next lattice tile crossing.
396	if (coord.lattice() != C_NONE) {	2,147,483,647✔
397	auto& lat {*model::lattices[coord.lattice()]};	1,381,476,825!
398	// TODO: refactor so both lattice use the same position argument (which
399	// also means the lat.type attribute can be removed)
400	std::pair<double, array<int, 3>> lattice_distance;	1,381,476,825✔
401	switch (lat.type_) {	1,381,476,825!
402	case LatticeType::rect:	1,295,973,528✔
403	lattice_distance = lat.distance(r, u, coord.lattice_index());	1,295,973,528✔
404	break;	1,295,973,528✔
405	case LatticeType::hex:	85,503,297✔
406	auto& cell_above {model::cells[p.coord(i - 1).cell()]};	85,503,297✔
407	Position r_hex {p.coord(i - 1).r()};	85,503,297✔
408	r_hex -= cell_above->translation_;	85,503,297✔
409	if (coord.rotated()) {	85,503,297✔
410	r_hex = r_hex.rotate(cell_above->rotation_);	701,954✔
411	}
412	r_hex.z = coord.r().z;	85,503,297✔
413	lattice_distance = lat.distance(r_hex, u, coord.lattice_index());	85,503,297✔
414	break;	85,503,297✔
415	}
416	d_lat = lattice_distance.first;	1,381,476,825✔
417	level_lat_trans = lattice_distance.second;	1,381,476,825✔
418
419	if (d_lat < 0) {	1,381,476,825!
420	p.mark_as_lost(fmt::format("Particle {} had a negative distance "	×
421	"to a lattice boundary.",
422	p.id()));	×
423	}
424	}
425
426	// If the boundary on this coordinate level is coincident with a boundary on
427	// a higher level then we need to make sure that the higher level boundary
428	// is selected. This logic must consider floating point precision.
429	double& d = info.distance();	2,147,483,647✔
430	if (d_surf < d_lat - FP_COINCIDENT) {	2,147,483,647✔
431	if (d == INFINITY \|\| (d - d_surf) / d >= FP_REL_PRECISION) {	2,147,483,647✔
432	// Update closest distance
433	d = d_surf;	2,147,483,647✔
434
435	// If the cell is not simple, it is possible that both the negative and
436	// positive half-space were given in the region specification. Thus, we
437	// have to explicitly check which half-space the particle would be
438	// traveling into if the surface is crossed
439	if (c.is_simple() \|\| d == INFTY) {	2,147,483,647✔
440	info.surface() = level_surf_cross;	2,147,483,647✔
441	} else {
442	Position r_hit = r + d_surf * u;	22,141,426✔
443	Surface& surf {*model::surfaces[std::abs(level_surf_cross) - 1]};	22,141,426✔
444	Direction norm = surf.normal(r_hit);	22,141,426✔
445	if (u.dot(norm) > 0) {	22,141,426✔
446	info.surface() = std::abs(level_surf_cross);	11,069,060✔
447	} else {
448	info.surface() = -std::abs(level_surf_cross);	11,072,366✔
449	}
450	}
451
452	info.lattice_translation()[0] = 0;	2,147,483,647✔
453	info.lattice_translation()[1] = 0;	2,147,483,647✔
454	info.lattice_translation()[2] = 0;	2,147,483,647✔
455	info.coord_level() = i + 1;	2,147,483,647✔
456	}
457	} else {
458	if (d == INFINITY \|\| (d - d_lat) / d >= FP_REL_PRECISION) {	1,146,940,735!
459	d = d_lat;	938,512,671✔
460	info.surface() = SURFACE_NONE;	938,512,671✔
461	info.lattice_translation() = level_lat_trans;	938,512,671✔
462	info.coord_level() = i + 1;	938,512,671✔
463	}
464	}
465	}
466	return info;	2,147,483,647✔
467	}
468
469	//==============================================================================
470	// C API
471	//==============================================================================
472
473	extern "C" int openmc_find_cell(	600,308✔
474	const double* xyz, int32_t* index, int32_t* instance)
475	{
476	GeometryState geom_state;	600,308✔
477
478	geom_state.r() = Position {xyz};	600,308✔
479	geom_state.u() = {0.0, 0.0, 1.0};	600,308✔
480
481	if (!exhaustive_find_cell(geom_state)) {	600,308✔
482	set_errmsg(	11✔
483	fmt::format("Could not find cell at position {}.", geom_state.r()));	11✔
484	return OPENMC_E_GEOMETRY;	11✔
485	}
486
487	*index = geom_state.lowest_coord().cell();	600,297✔
488	*instance = geom_state.cell_instance();	600,297✔
489	return 0;	600,297✔
490	}	600,308✔
491
492	extern "C" int openmc_global_bounding_box(double* llc, double* urc)	11✔
493	{
494	auto bbox = model::universes.at(model::root_universe)->bounding_box();	11✔
495
496	// set lower left corner values
497	llc[0] = bbox.min.x;	11✔
498	llc[1] = bbox.min.y;	11✔
499	llc[2] = bbox.min.z;	11✔
500
501	// set upper right corner values
502	urc[0] = bbox.max.x;	11✔
503	urc[1] = bbox.max.y;	11✔
504	urc[2] = bbox.max.z;	11✔
505
506	return 0;	11✔
507	}
508
509	} // namespace openmc

openmc-dev / openmc / 27319341588

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