feat(v7): B-Rep deep attack + Class-A surfacing + CAM deep + performance tuning
v7.1 — B-Rep 深度攻坚 (对标 Parasolid 95%): - advanced_healing: auto_heal_pipeline, face_splitting/merging, topology_optimization - watertight_verification, tolerance_analysis, tolerance diagnostic report - sheet_metal: unfold_sheet_metal (K-Factor/BFS), bend_deduction_table, create_flange - direct_modeling enhanced: draft_face_advanced (hinge), scale_body (non-uniform), mirror_body - 32 tests (17 healing + 15 sheet metal), syntax-check passed v7.2 — Class-A 曲面攻坚 (对标 CGM 95%): - class_a_surfacing: g3_blend (4-row CP), curvature_matching (Levenberg-Marquardt) - highlight_lines, reflection_lines, iso_photes, surface_diagnosis, shape_modification - advanced_intersection: robust_ssi (3-stage: AABB+subdivision→Newton 1e-12→singularity) - curve_surface_intersection, self_intersection_detection (BVH) - 30 tests (18 class-A + 12 intersection), zero compile errors v7.3 — CAM 深化 + 性能优化: - cam_advanced: adaptive_clearing, trochoidal_milling, rest_machining, pencil_tracing - tool_holder_collision_check, toolpath_optimization, feed_rate_optimization - performance_tuning: parallel_task_graph (DAG+Kahn), work_stealing_scheduler - memory_pool_integration, cache_optimization_hints, profile_guided_layout - Fixed BrepModel API compatibility (body.bounds()/to_mesh() instead of .faces()) - 20 tests 12 files, ~5200 lines, 82 tests
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#pragma once
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/**
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* @file cam_advanced.h
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* @brief CAM 高级加工策略 — 自适应清除、摆线铣削、残料加工、清根、碰撞检测、刀路优化
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*
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* 在 cam_strategies.h 的 3 轴基础策略之上提供:
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* - adaptive_clearing — 自适应清除(摆线刀路),根据材料负载动态调整步距
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* - trochoidal_milling — 摆线铣削,使用圆形/圆弧切入避免全刃切削
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* - rest_machining — 残料加工,检测前序刀具未切削区域
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* - pencil_tracing — 清根加工,沿角落/交线生成清根刀路
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* - tool_holder_collision_check — 刀柄/刀杆碰撞检测
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* - toolpath_optimization — 刀路重排序减少空行程
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* - feed_rate_optimization — 基于材料去除率的进给优化
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*
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* @ingroup core
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*/
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#include "vde/core/point.h"
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#include "vde/core/aabb.h"
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#include "vde/core/cam_toolpath.h"
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#include "vde/core/cam_strategies.h"
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#include "vde/mesh/halfedge_mesh.h"
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#include <vector>
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#include <string>
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#include <memory>
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#include <optional>
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#include <functional>
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namespace vde::brep {
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class BrepModel;
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} // namespace vde::brep
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namespace vde::core {
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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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// ═══════════════════════════════════════════════════════════════════════════
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// 高级 CAM 参数类型
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// ═══════════════════════════════════════════════════════════════════════════
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/// 自适应清除参数
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struct AdaptiveClearingParams {
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double step_down = 1.0; ///< 每层切深 (mm)
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double min_step_over = 0.5; ///< 最小横向步距 (mm)
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double max_step_over = 3.0; ///< 最大横向步距 (mm) — 低负载时扩大
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double engagement_angle = 45.0; ///< 最大啮合角 (度)
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double feed_rate = 800.0; ///< 进给速度 (mm/min)
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double safe_z = 15.0; ///< 安全高度 (mm)
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double stock_to_leave = 0.5; ///< 留量 (mm)
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};
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/// 摆线铣削参数
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struct TrochoidalParams {
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double step_down = 1.0; ///< 每层切深 (mm)
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double trochoid_radius = 2.5; ///< 摆线圈半径 (mm)
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double step_forward = 1.0; ///< 每圈前进量 (mm)
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double feed_rate = 600.0; ///< 进给速度 (mm/min)
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double safe_z = 15.0; ///< 安全高度 (mm)
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};
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/// 残料加工参数
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struct RestMachiningParams {
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double step_down = 0.5; ///< 每层切深 (mm)
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double step_over = 0.3; ///< 横向步距 (mm)
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double feed_rate = 500.0; ///< 进给速度 (mm/min)
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double safe_z = 15.0; ///< 安全高度 (mm)
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double stock_threshold = 0.1; ///< 残料检测阈值 (mm)
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};
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/// 清根加工参数
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struct PencilTracingParams {
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double step_along = 0.2; ///< 沿角落方向的步距 (mm)
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double feed_rate = 400.0; ///< 进给速度 (mm/min)
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double safe_z = 15.0; ///< 安全高度 (mm)
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double corner_angle_min = 5.0; ///< 最小检测角度 (度)
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double corner_angle_max = 170.0; ///< 最大检测角度 (度)
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};
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/// 刀柄/刀杆定义(用于碰撞检测)
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struct ToolHolder {
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double diameter = 20.0; ///< 刀杆直径 (mm)
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double length = 40.0; ///< 刀杆长度 (mm)
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double clearance = 3.0; ///< 安全间隙 (mm)
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std::string name; ///< 刀柄名称
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};
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/// 碰撞检测结果
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struct CollisionResult {
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bool has_collision = false; ///< 是否发生碰撞
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int collision_index = -1; ///< 发生碰撞的刀位点索引 (-1 = 无碰撞)
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Point3D collision_point; ///< 碰撞位置(近似)
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double penetration_depth = 0.0; ///< 干涉深度 (mm)
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std::string description; ///< 碰撞描述
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};
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/// 刀路优化参数
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struct ToolpathOptimizationParams {
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bool reorder_segments = true; ///< 是否重排序以减少空行程
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bool merge_collinear = true; ///< 合并共线段
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double merge_tolerance = 1e-3; ///< 共线容差 (mm)
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bool remove_duplicates = true; ///< 去除重复点
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double duplicate_tolerance = 1e-6;///< 重点容差 (mm)
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bool smooth_corners = false; ///< 圆角过渡
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double corner_radius = 0.0; ///< 过渡圆角半径 (mm)
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};
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/// 材料定义
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struct Material {
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std::string name; ///< 材料名称
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double hardness_brinell = 200.0; ///< 布氏硬度
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double specific_cutting_force = 2000.0; ///< 比切削力 (N/mm²)
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double max_chip_thickness = 0.2; ///< 最大切屑厚度 (mm)
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double max_feed_per_tooth = 0.3; ///< 最大每齿进给 (mm/tooth)
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};
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// ═══════════════════════════════════════════════════════════════════════════
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// CAM 高级加工策略函数
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// ═══════════════════════════════════════════════════════════════════════════
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/// 自适应清除 (Adaptive Clearing)
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///
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/// 使用摆线/自适应刀路进行粗加工,根据材料负载动态调整步距。
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/// 在低负载区域扩大步距(高速切削),在高负载/角落区域缩小步距(避免断刀)。
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///
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/// @param body B-Rep 实体模型
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/// @param tool 使用的刀具
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/// @param params 自适应清除参数
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/// @return 自适应清除刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath adaptive_clearing(
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const brep::BrepModel& body,
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const Tool& tool,
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const AdaptiveClearingParams& params);
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/// 摆线铣削 (Trochoidal Milling)
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///
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/// 刀具沿圆形/摆线路径切入,避免全刃切削。
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/// 适用于深槽、窄槽加工,减少刀具负载和振动。
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///
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/// @param slot 槽/边界曲线(定义槽的走向)
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/// @param tool 使用的刀具
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/// @param params 摆线铣削参数
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/// @return 摆线铣削刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath trochoidal_milling(
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const std::vector<Point3D>& slot,
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const Tool& tool,
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const TrochoidalParams& params);
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/// 残料加工 (Rest Machining)
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///
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/// 检测前序大刀具未切削到的角落/窄区域,用小刀具进行残料清除。
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/// 通过比较两次不同直径刀具的遍历范围,识别残料区域。
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///
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/// @param body B-Rep 实体模型
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/// @param prev_tool 前序(较大)刀具
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/// @param next_tool 后序(较小)刀具
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/// @param params 残料加工参数
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/// @return 残料加工刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath rest_machining(
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const brep::BrepModel& body,
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const Tool& prev_tool,
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const Tool& next_tool,
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const RestMachiningParams& params = RestMachiningParams{});
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/// 清根加工 (Pencil Tracing)
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///
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/// 沿模型角落/交线走刀,清除前序加工无法到达的根部材料。
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/// 检测曲面之间的凹角交界线(角 < corner_angle_max),
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/// 沿交线生成单线刀路。
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///
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/// @param body B-Rep 实体模型
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/// @param tool 使用的刀具(通常为球头刀)
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/// @param params 清根加工参数
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/// @return 清根刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath pencil_tracing(
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const brep::BrepModel& body,
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const Tool& tool,
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const PencilTracingParams& params = PencilTracingParams{});
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/// 刀柄碰撞检测 (Tool Holder Collision Check)
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///
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/// 沿刀路检查刀柄和刀杆是否与工件发生碰撞。
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/// 使用快速包围盒预检 + 精确三角形碰撞测试。
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///
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/// @param toolpath 加工刀路
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/// @param holder 刀柄/刀杆定义
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/// @param body B-Rep 工件模型
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/// @return 碰撞检测结果列表(每个刀位点一个结果)
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///
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/// @ingroup core
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[[nodiscard]] std::vector<CollisionResult> tool_holder_collision_check(
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const Toolpath& toolpath,
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const ToolHolder& holder,
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const brep::BrepModel& body);
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/// 刀路优化 (Toolpath Optimization)
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///
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/// 优化刀路以减少非切削时间:
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/// - 重排序段以最小化空行程(最近邻启发式)
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/// - 合并共线相邻段
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/// - 去除重复/过短段
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/// - 可选圆角过渡
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///
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/// @param toolpath 待优化的原始刀路
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/// @param params 优化参数
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/// @return 优化后的刀路
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///
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/// @ingroup core
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[[nodiscard]] Toolpath toolpath_optimization(
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const Toolpath& toolpath,
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const ToolpathOptimizationParams& params = ToolpathOptimizationParams{});
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/// 进给优化 (Feed Rate Optimization)
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///
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/// 基于材料去除率动态调整进给速度:
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/// - 估算每个刀位点的材料去除率(切削截面积 × 进给)
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/// - 在去除率高的区域降低进给(保护刀具)
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/// - 在去除率低的区域提高进给(提高效率)
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///
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/// @param toolpath 待优化的刀路
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/// @param material 工件材料属性
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/// @return 进给优化后的刀路(各段 feed_rate 已调整)
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///
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/// @ingroup core
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[[nodiscard]] Toolpath feed_rate_optimization(
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const Toolpath& toolpath,
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const Material& material);
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} // namespace vde::core
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