茂之钳
8a19e265cd
S10-A: B-Rep modeling 补齐 - fillet: 恒定半径滚动球倒圆（NURBS 曲面构建 + 相邻面裁剪） - chamfer: 等距倒角（平面偏移 + 倒角面构建） - shell: 完整抽壳（顶点偏移 + 内外面 + 开口侧壁） S10-B: STEP AP203/AP214 导入 - ISO 10303-21 解析器（1,424 行） - 支持 14 种几何实体 → NurbsCurve/NurbsSurface 转换 - 完整拓扑链：VERTEX_POINT → EDGE_CURVE → EDGE_LOOP → ADVANCED_FACE → CLOSED_SHELL → MANIFOLD_SOLID_BREP - 装配支持：NEXT_ASSEMBLY_USAGE_OCCURRENCE + CONTEXT_DEPENDENT_SHAPE_REPRESENTATION S10-C.1: STEP AP214 导出 - export_step / export_step_file - 曲线/曲面类型自动检测简化输出 S10-C.2: B-Rep 级布尔运算 - brep_union / brep_intersection / brep_difference - 面-面求交 + 内/外分类 + 面缝合 S10-C.3: B-Rep 工程验证 - ValidationResult: 水密性/悬边/自相交/方向一致性/欧拉示性数 测试: 5 个新测试文件，47 项测试（modeling/STEP导入/导出/布尔/验证） 修改: 7 files (+576/-47) | 新增: 13 files (4,141 行) 总计: +4,670 行
78 lines
3.1 KiB
C++
78 lines
3.1 KiB
C++
#pragma once
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#include "vde/core/point.h"
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#include "vde/core/aabb.h"
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#include "vde/curves/nurbs_curve.h"
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#include "vde/curves/nurbs_surface.h"
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#include "vde/mesh/halfedge_mesh.h"
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#include <vector>
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#include <memory>
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#include <string>
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namespace vde::brep {
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using core::Point3D;
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using core::Vector3D;
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using core::AABB3D;
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enum class CurveType { Line, Circle, Bezier, BSpline, Nurbs };
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struct TopoVertex { int id; Point3D point; double tolerance = 1e-6; };
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struct TopoEdge {
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int id, v_start, v_end;
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std::shared_ptr<curves::NurbsCurve> curve;
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bool reversed = false;
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};
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struct TopoLoop { int id; std::vector<int> edges; bool is_outer = true; };
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struct TopoFace { int id, surface_id; std::vector<int> loops; bool reversed = false; };
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struct TopoShell { int id; std::vector<int> faces; bool closed = true; };
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struct TopoBody { int id; std::vector<int> shells; std::string name; };
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class BrepModel {
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public:
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BrepModel() = default;
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int add_vertex(const Point3D& p);
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int add_edge(int v0, int v1);
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int add_edge(int v0, int v1, const curves::NurbsCurve& curve);
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int add_loop(const std::vector<int>& edges, bool outer = true);
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int add_face(int surface_id, const std::vector<int>& loops);
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int add_shell(const std::vector<int>& faces, bool closed = true);
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int add_body(const std::vector<int>& shells, const std::string& name = "");
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int add_surface(const curves::NurbsSurface& surf);
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[[nodiscard]] size_t num_vertices() const { return vertices_.size(); }
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[[nodiscard]] size_t num_edges() const { return edges_.size(); }
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[[nodiscard]] size_t num_faces() const { return faces_.size(); }
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[[nodiscard]] size_t num_bodies() const { return bodies_.size(); }
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// Look up vertex by array index (faster, for sequential access)
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[[nodiscard]] const TopoVertex& vertex(int id) const { return vertices_[id]; }
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// Look up vertex by unique ID (correct for ID-based references from edge data)
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[[nodiscard]] const TopoVertex& vertex_by_id(int id) const;
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[[nodiscard]] const TopoEdge& edge(int id) const { return edges_[id]; }
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[[nodiscard]] const TopoFace& face(int id) const { return faces_[id]; }
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[[nodiscard]] const curves::NurbsSurface& surface(int id) const { return surfaces_[id]; }
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[[nodiscard]] core::AABB3D bounds() const;
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[[nodiscard]] bool is_valid() const;
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[[nodiscard]] mesh::HalfedgeMesh to_mesh(double deflection = 0.01) const;
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[[nodiscard]] std::vector<int> face_edges(int face_id) const;
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[[nodiscard]] std::vector<int> edge_faces(int edge_id) const;
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[[nodiscard]] std::vector<int> vertex_edges(int vertex_id) const;
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[[nodiscard]] size_t num_surfaces() const { return surfaces_.size(); }
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[[nodiscard]] const TopoLoop& loop_by_id(int id) const;
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[[nodiscard]] const std::vector<TopoLoop>& all_loops() const { return loops_; }
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private:
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std::vector<TopoVertex> vertices_;
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std::vector<TopoEdge> edges_;
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std::vector<TopoLoop> loops_;
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std::vector<TopoFace> faces_;
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std::vector<TopoShell> shells_;
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std::vector<TopoBody> bodies_;
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std::vector<curves::NurbsSurface> surfaces_;
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int next_id_ = 0;
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};
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} // namespace vde::brep
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