Zhicheng Wang
2 weeks ago
20 changed files with 451 additions and 75 deletions
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#pragma once |
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#include <post_topo/patch_propagation.hpp> |
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#include <post_topo/filter_polygon_faces.hpp> |
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#include <post_topo/filter_polygon_faces.hpp> |
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#include <post_topo/chain_post_processing.hpp> |
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#pragma once |
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#include <fwd_types.hpp> |
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struct baked_blobtree_t; |
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struct parameteric_plane_t; |
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// return: active chain label
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dynamic_bitset_mp<> filter_chains(const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const dynamic_bitset_mp<>& active_patch_label, |
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size_t chain_size, |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch); |
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// return: is chain end vertices signular
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dynamic_bitset_mp<> identify_chain_signular(const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& chains, |
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const flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch, |
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size_t chain_size); |
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void identify_chain_near_parallel(flat_hash_map_mp<uint32_t, parameteric_plane_t>& parameteric_planes); |
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void map_chain_to_parameteric_plane(const baked_blobtree_t& tree, |
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const stl_vector_mp<Eigen::Vector3d>& vertices, |
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const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& chains, |
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const flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch, |
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const flat_hash_map_mp<uint32_t, uint32_t>& vertex_old_index_to_unique_index, |
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const dynamic_bitset_mp<>& chain_end_vertex_signular_flag, |
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flat_hash_map_mp<uint32_t, parameteric_plane_t>& parameteric_planes); |
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#include <post_topo.hpp> |
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dynamic_bitset_mp<> filter_chains(const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const dynamic_bitset_mp<>& active_patch_label, |
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size_t chain_size, |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch) |
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{ |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>> filtered_chain_of_patch{}; |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>> active_prim_of_chain{}; |
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for (uint32_t i = 0; i < chain_of_patch.size(); ++i) { |
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if (active_patch_label[i]) { |
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auto& cIds_of_patch = filtered_chain_of_patch[i]; |
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cIds_of_patch = std::move(chain_of_patch.at(i)); |
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for (auto chain_index : cIds_of_patch) { active_prim_of_chain[chain_index].emplace_back(i); } |
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} |
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} |
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dynamic_bitset_mp<> active_chain_label(chain_size); |
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for (auto& [chain_index, patch_indices] : active_prim_of_chain) { |
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auto label = active_chain_label[chain_index]; |
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if (patch_indices.size() > 2) label = true; |
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// transform patch index to subface index
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for (auto& patch_index : patch_indices) patch_index = faces[patches[patch_index][0]].subface_index; |
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std::sort(patch_indices.begin(), patch_indices.end()); |
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auto iter = std::unique(patch_indices.begin(), patch_indices.end()); |
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// turn it off iff only one subface is incident
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if (std::distance(patch_indices.begin(), iter) <= 1) label = false; |
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} |
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stl_vector_mp<uint32_t> temp_filtered_chain_indices{}; |
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chain_of_patch.clear(); |
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for (auto& [patch_index, chain_indices] : filtered_chain_of_patch) { |
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temp_filtered_chain_indices.clear(); |
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for (auto chain_index : chain_indices) { |
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if (active_chain_label[chain_index]) temp_filtered_chain_indices.emplace_back(chain_index); |
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} |
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temp_filtered_chain_indices.shrink_to_fit(); |
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if (!temp_filtered_chain_indices.empty()) chain_of_patch[patch_index] = std::move(temp_filtered_chain_indices); |
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} |
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return active_chain_label; |
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} |
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#include <process.hpp> |
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#include <post_topo.hpp> |
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dynamic_bitset_mp<> identify_chain_signular(const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& chains, |
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const flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch, |
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size_t chain_size) |
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{ |
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dynamic_bitset_mp<> chain_end_vertex_signular_flag(chain_size * 2); |
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flat_hash_map_mp<uint32_t, flat_hash_set_mp<uint32_t>> vertex_subface_indices{}; |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>> start_vertex_to_chain_indices{}; |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>> end_vertex_to_chain_indices{}; |
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for (const auto& [patch_index, chain_indices] : chain_of_patch) { |
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const auto subface_index = faces[patches[patch_index][0]].subface_index; |
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for (const auto& face_index : patches[patch_index]) { |
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const auto& face = faces[face_index]; |
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for (const auto& vertex_index : face.vertex_indices) { |
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for (const auto& chain_index : chain_indices) { |
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const auto start_vertex = chains[chain_index].front(); |
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const auto end_vertex = chains[chain_index].back(); |
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if (vertex_index == start_vertex) { |
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vertex_subface_indices[vertex_index].emplace(subface_index); |
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start_vertex_to_chain_indices[vertex_index].emplace_back(chain_index); |
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break; |
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} else if (vertex_index == end_vertex) { |
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vertex_subface_indices[vertex_index].emplace(subface_index); |
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end_vertex_to_chain_indices[vertex_index].emplace_back(chain_index); |
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break; |
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} |
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} |
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} |
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} |
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} |
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for (const auto& [vertex_index, subface_set] : vertex_subface_indices) { |
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if (subface_set.size() >= 3) { |
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if (auto iter = start_vertex_to_chain_indices.find(vertex_index); iter != start_vertex_to_chain_indices.end()) { |
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for (const auto& chain_index : iter->second) chain_end_vertex_signular_flag[chain_index * 2] = true; |
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} |
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if (auto iter = end_vertex_to_chain_indices.find(vertex_index); iter != end_vertex_to_chain_indices.end()) { |
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for (const auto& chain_index : iter->second) chain_end_vertex_signular_flag[chain_index * 2 + 1] = true; |
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} |
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} |
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} |
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return chain_end_vertex_signular_flag; |
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} |
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void identify_chain_near_parallel(flat_hash_map_mp<uint32_t, parameteric_plane_t>& parameteric_planes) |
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{ |
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for (auto& [_, parameteric_plane] : parameteric_planes) { |
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parameteric_plane.edge_near_parallel_flags.reserve(parameteric_plane.chain_vertices.size()); |
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for (size_t i = 0; i < parameteric_plane.chain_vertices.size(); ++i) { |
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const auto& vertices = parameteric_plane.chain_vertices[i]; |
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auto& vertex_flags = parameteric_plane.vertex_special_flags[i]; |
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auto& edge_flags = parameteric_plane.edge_near_parallel_flags.emplace_back(); |
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edge_flags.resize(vertices.size() - 1); |
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// identify edge near parallel first
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for (auto iter = vertices.begin(); iter != vertices.end() - 1; ++iter) { |
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if (std::abs(iter->x() - (iter + 1)->x()) <= epsilon || //
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std::abs(iter->y() - (iter + 1)->y()) <= epsilon) |
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edge_flags[std::distance(vertices.begin(), iter)] = true; |
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} |
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// then identify polar vertex
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if (vertices.size() >= 3) { |
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for (auto iter = vertices.begin() + 1; iter != vertices.end() - 1; ++iter) { |
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auto vec1 = *iter - *(iter - 1); |
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auto vec2 = *(iter + 1) - *iter; |
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if (vec1.dot(vec2) < 0) vertex_flags[std::distance(vertices.begin(), iter)] = true; |
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} |
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} |
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} |
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} |
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} |
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@ -0,0 +1,53 @@ |
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#include <process.hpp> |
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#include <post_topo.hpp> |
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void map_chain_to_parameteric_plane(const baked_blobtree_t& tree, |
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const stl_vector_mp<Eigen::Vector3d>& vertices, |
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const stl_vector_mp<polygon_face_t>& faces, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& patches, |
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const stl_vector_mp<stl_vector_mp<uint32_t>>& chains, |
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const flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>>& chain_of_patch, |
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const flat_hash_map_mp<uint32_t, uint32_t>& vertex_old_index_to_unique_index, |
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const dynamic_bitset_mp<>& chain_end_vertex_signular_flag, |
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flat_hash_map_mp<uint32_t, parameteric_plane_t>& parameteric_planes) |
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{ |
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flat_hash_map_mp<uint32_t, stl_vector_mp<uint32_t>> patch_of_subface{}; |
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for (const auto& [patch_index, _] : chain_of_patch) { |
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const auto& subface_index = faces[patches[patch_index][0]].subface_index; |
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patch_of_subface[subface_index].emplace_back(patch_index); |
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} |
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const auto& subfaces = tree.subfaces; |
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for (const auto& [subface_index, patch_indices] : patch_of_subface) { |
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const auto& subface = *subfaces[subface_index].object_ptr; |
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auto mapping_func = subface.fetch_param_mapping_evaluator(); |
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auto& parameteric_plane = parameteric_planes[subface_index]; |
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auto& chain_vertices = parameteric_plane.chain_vertices; |
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auto& chain_group_start_indices = parameteric_plane.chain_group_start_indices; |
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auto& chain_vertex_flags = parameteric_plane.vertex_special_flags; |
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chain_group_start_indices.reserve(patch_indices.size()); |
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chain_group_start_indices.emplace_back(0); |
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for (const auto& patch_index : patch_indices) { |
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const auto& chain_indices = chain_of_patch.at(patch_index); |
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chain_group_start_indices.emplace_back(chain_indices.size() + chain_group_start_indices.back()); |
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chain_vertices.reserve(chain_vertices.size() + chain_indices.size()); |
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chain_vertex_flags.reserve(chain_vertex_flags.size() + chain_indices.size()); |
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for (const auto& chain_index : chain_indices) { |
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const auto& chain = chains[chain_index]; |
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auto& chain_vertices_ = chain_vertices.emplace_back(); |
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chain_vertices_.resize(chain.size()); |
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std::transform(chain.begin(), chain.end(), chain_vertices_.begin(), [&](uint32_t vertex_index) { |
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auto mapped_vertex_index = vertex_old_index_to_unique_index.at(vertex_index); |
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return mapping_func(vertices[mapped_vertex_index]); |
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}); |
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auto& chain_vertex_flags_ = chain_vertex_flags.emplace_back(); |
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chain_vertex_flags_.resize(chain.size()); |
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chain_vertex_flags_[0] = chain_end_vertex_signular_flag[2 * chain_index]; |
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chain_vertex_flags_[chain.size() - 1] = chain_end_vertex_signular_flag[2 * chain_index + 1]; |
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} |
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} |
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} |
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} |
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#pragma once |
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#include "../stl_alias.hpp" |
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struct flat_index_group { |
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stl_vector_mp<uint32_t> index_group{}; /// a list of indices in the group
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stl_vector_mp<uint32_t> start_indices{}; /// a list of start indices for each group in the flat index group
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inline size_t size() const { return start_indices.size() - 1; } |
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// f(group_index, element_index_in_group, elemenet)
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template <typename F> |
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inline void foreach (F&& f) const |
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{ |
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for (uint32_t group_idx = 0; group_idx < size(); ++group_idx) { |
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for (uint32_t elem_idx = 0; elem_idx < start_indices[group_idx + 1] - start_indices[group_idx]; ++elem_idx) { |
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f(group_idx, elem_idx, index_group[start_indices[group_idx] + elem_idx]); |
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} |
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} |
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} |
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// f(group_index, group_start_index, group_end_index)
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template <typename F> |
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inline void group_foreach(F&& f) const |
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{ |
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for (uint32_t group_idx = 0; group_idx < size(); ++group_idx) { |
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f(group_idx, start_indices[group_idx], start_indices[group_idx + 1]); |
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} |
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} |
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// f(element_index_in_group, element)
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template <typename F> |
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inline void loop_on_group(uint32_t group_idx, F&& f) const |
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{ |
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for (uint32_t elem_idx = 0; elem_idx < start_indices[group_idx + 1] - start_indices[group_idx]; ++elem_idx) { |
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f(elem_idx, index_group[start_indices[group_idx] + elem_idx]); |
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} |
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} |
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}; |
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