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#pragma once
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#include <fwd_types.hpp>
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#include <blobtree.hpp>
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#include <implicit_arrangement.hpp>
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#include <settings.h>
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using grid_region = std::pair<Eigen::Vector<size_t, 3>, Eigen::Vector<size_t, 3>>;
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void extract_vertex_infos(const s_settings& settings,
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const baked_blobtree_t& tree,
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scene_bg_mesh_info_t& scene_bg_mesh_info,
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Eigen::Ref<Eigen::MatrixXd> vertex_infos);
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void build_tetrahedron_and_adjacency(const scene_bg_mesh_info_t& scene_bg_mesh_info,
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stl_vector_mp<std::array<uint32_t, 4>>& tetrahedrons,
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flat_hash_map_mp<uint32_t, uint32_t>& vertex_lexigraphical_adjacency,
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& reverse_vertex_adjacency,
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btree_map_mp<uint32_t, stl_vector_mp<uint32_t>>& vertex_to_tet_mapping);
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void filter_tet_by_subface(const btree_map_mp<uint32_t, stl_vector_mp<uint32_t>>& vertex_to_tet_mapping,
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Eigen::MatrixXd& vertex_infos,
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flat_hash_map_mp<uint32_t, uint32_t>& vertex_indices_mapping,
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stl_vector_mp<std::array<uint32_t, 4>>& tetrahedrons,
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flat_hash_map_mp<uint32_t, uint32_t>& vertex_lexigraphical_adjacency,
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const flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& reverse_vertex_adjacency,
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stl_vector_mp<uint32_t>& tetrahedron_active_subface_start_index,
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stl_vector_mp<uint32_t>& active_subface_indices,
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& zero_vertex_to_incident_tet_mapping);
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// in turn: num_1_func, num_2_func, num_more_func
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std::array<uint32_t, 3> compute_implicit_arrangements(const Eigen::Ref<const Eigen::MatrixXd> vertex_infos,
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const flat_hash_map_mp<uint32_t, uint32_t>& vertex_indices_mapping,
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const stl_vector_mp<std::array<uint32_t, 4>>& tetrahedrons,
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const stl_vector_mp<uint32_t>& tetrahedron_active_subface_start_index,
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const stl_vector_mp<uint32_t>& active_subface_indices,
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stl_vector_mp<arrangement_t>& tetrahedron_arrangements);
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// extract iso-mesh (topology only)
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void extract_iso_mesh(const std::array<uint32_t, 3>& tet_active_subface_counts,
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const stl_vector_mp<arrangement_t>& tetrahedron_arrangements,
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const scene_bg_mesh_info_t& scene_bg_mesh_info,
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const stl_vector_mp<std::array<uint32_t, 4>>& tetrahedrons,
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const stl_vector_mp<uint32_t>& tetrahedron_active_subface_start_index,
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const stl_vector_mp<uint32_t>& active_subface_indices,
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const Eigen::Ref<const Eigen::MatrixXd> vertex_infos,
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const flat_hash_map_mp<uint32_t, uint32_t>& vertex_indices_mapping,
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stl_vector_mp<Eigen::Vector3d>& iso_pts,
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stl_vector_mp<iso_vertex_t>& iso_verts,
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stl_vector_mp<polygon_face_t>& iso_faces);
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