feat(v7): B-Rep deep attack + Class-A surfacing + CAM deep + performance tuning
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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
This commit is contained in:
茂之钳
2026-07-26 22:54:46 +08:00
parent 5e2812a6f3
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#pragma once
/**
* @file cam_advanced.h
* @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
*
* 在 cam_strategies.h 的 3 轴基础策略之上提供:
* - adaptive_clearing — 自适应清除(摆线刀路),根据材料负载动态调整步距
* - trochoidal_milling — 摆线铣削,使用圆形/圆弧切入避免全刃切削
* - rest_machining — 残料加工,检测前序刀具未切削区域
* - pencil_tracing — 清根加工,沿角落/交线生成清根刀路
* - tool_holder_collision_check — 刀柄/刀杆碰撞检测
* - toolpath_optimization — 刀路重排序减少空行程
* - feed_rate_optimization — 基于材料去除率的进给优化
*
* @ingroup core
*/
#include "vde/core/point.h"
#include "vde/core/aabb.h"
#include "vde/core/cam_toolpath.h"
#include "vde/core/cam_strategies.h"
#include "vde/mesh/halfedge_mesh.h"
#include <vector>
#include <string>
#include <memory>
#include <optional>
#include <functional>
namespace vde::brep {
class BrepModel;
} // namespace vde::brep
namespace vde::core {
using core::Point3D;
using core::Vector3D;
using core::AABB3D;
// ═══════════════════════════════════════════════════════════════════════════
// 高级 CAM 参数类型
// ═══════════════════════════════════════════════════════════════════════════
/// 自适应清除参数
struct AdaptiveClearingParams {
double step_down = 1.0; ///< 每层切深 (mm)
double min_step_over = 0.5; ///< 最小横向步距 (mm)
double max_step_over = 3.0; ///< 最大横向步距 (mm) — 低负载时扩大
double engagement_angle = 45.0; ///< 最大啮合角 (度)
double feed_rate = 800.0; ///< 进给速度 (mm/min)
double safe_z = 15.0; ///< 安全高度 (mm)
double stock_to_leave = 0.5; ///< 留量 (mm)
};
/// 摆线铣削参数
struct TrochoidalParams {
double step_down = 1.0; ///< 每层切深 (mm)
double trochoid_radius = 2.5; ///< 摆线圈半径 (mm)
double step_forward = 1.0; ///< 每圈前进量 (mm)
double feed_rate = 600.0; ///< 进给速度 (mm/min)
double safe_z = 15.0; ///< 安全高度 (mm)
};
/// 残料加工参数
struct RestMachiningParams {
double step_down = 0.5; ///< 每层切深 (mm)
double step_over = 0.3; ///< 横向步距 (mm)
double feed_rate = 500.0; ///< 进给速度 (mm/min)
double safe_z = 15.0; ///< 安全高度 (mm)
double stock_threshold = 0.1; ///< 残料检测阈值 (mm)
};
/// 清根加工参数
struct PencilTracingParams {
double step_along = 0.2; ///< 沿角落方向的步距 (mm)
double feed_rate = 400.0; ///< 进给速度 (mm/min)
double safe_z = 15.0; ///< 安全高度 (mm)
double corner_angle_min = 5.0; ///< 最小检测角度 (度)
double corner_angle_max = 170.0; ///< 最大检测角度 (度)
};
/// 刀柄/刀杆定义(用于碰撞检测)
struct ToolHolder {
double diameter = 20.0; ///< 刀杆直径 (mm)
double length = 40.0; ///< 刀杆长度 (mm)
double clearance = 3.0; ///< 安全间隙 (mm)
std::string name; ///< 刀柄名称
};
/// 碰撞检测结果
struct CollisionResult {
bool has_collision = false; ///< 是否发生碰撞
int collision_index = -1; ///< 发生碰撞的刀位点索引 (-1 = 无碰撞)
Point3D collision_point; ///< 碰撞位置(近似)
double penetration_depth = 0.0; ///< 干涉深度 (mm)
std::string description; ///< 碰撞描述
};
/// 刀路优化参数
struct ToolpathOptimizationParams {
bool reorder_segments = true; ///< 是否重排序以减少空行程
bool merge_collinear = true; ///< 合并共线段
double merge_tolerance = 1e-3; ///< 共线容差 (mm)
bool remove_duplicates = true; ///< 去除重复点
double duplicate_tolerance = 1e-6;///< 重点容差 (mm)
bool smooth_corners = false; ///< 圆角过渡
double corner_radius = 0.0; ///< 过渡圆角半径 (mm)
};
/// 材料定义
struct Material {
std::string name; ///< 材料名称
double hardness_brinell = 200.0; ///< 布氏硬度
double specific_cutting_force = 2000.0; ///< 比切削力 (N/mm²)
double max_chip_thickness = 0.2; ///< 最大切屑厚度 (mm)
double max_feed_per_tooth = 0.3; ///< 最大每齿进给 (mm/tooth)
};
// ═══════════════════════════════════════════════════════════════════════════
// CAM 高级加工策略函数
// ═══════════════════════════════════════════════════════════════════════════
/// 自适应清除 (Adaptive Clearing)
///
/// 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。
/// 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)。
///
/// @param body B-Rep 实体模型
/// @param tool 使用的刀具
/// @param params 自适应清除参数
/// @return 自适应清除刀路
///
/// @ingroup core
[[nodiscard]] Toolpath adaptive_clearing(
const brep::BrepModel& body,
const Tool& tool,
const AdaptiveClearingParams& params);
/// 摆线铣削 (Trochoidal Milling)
///
/// 刀具沿圆形/摆线路径切入,避免全刃切削。
/// 适用于深槽、窄槽加工,减少刀具负载和振动。
///
/// @param slot 槽/边界曲线(定义槽的走向)
/// @param tool 使用的刀具
/// @param params 摆线铣削参数
/// @return 摆线铣削刀路
///
/// @ingroup core
[[nodiscard]] Toolpath trochoidal_milling(
const std::vector<Point3D>& slot,
const Tool& tool,
const TrochoidalParams& params);
/// 残料加工 (Rest Machining)
///
/// 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。
/// 通过比较两次不同直径刀具的遍历范围,识别残料区域。
///
/// @param body B-Rep 实体模型
/// @param prev_tool 前序(较大)刀具
/// @param next_tool 后序(较小)刀具
/// @param params 残料加工参数
/// @return 残料加工刀路
///
/// @ingroup core
[[nodiscard]] Toolpath rest_machining(
const brep::BrepModel& body,
const Tool& prev_tool,
const Tool& next_tool,
const RestMachiningParams& params = RestMachiningParams{});
/// 清根加工 (Pencil Tracing)
///
/// 沿模型角落/交线走刀,清除前序加工无法到达的根部材料。
/// 检测曲面之间的凹角交界线(角 < corner_angle_max),
/// 沿交线生成单线刀路。
///
/// @param body B-Rep 实体模型
/// @param tool 使用的刀具(通常为球头刀)
/// @param params 清根加工参数
/// @return 清根刀路
///
/// @ingroup core
[[nodiscard]] Toolpath pencil_tracing(
const brep::BrepModel& body,
const Tool& tool,
const PencilTracingParams& params = PencilTracingParams{});
/// 刀柄碰撞检测 (Tool Holder Collision Check)
///
/// 沿刀路检查刀柄和刀杆是否与工件发生碰撞。
/// 使用快速包围盒预检 + 精确三角形碰撞测试。
///
/// @param toolpath 加工刀路
/// @param holder 刀柄/刀杆定义
/// @param body B-Rep 工件模型
/// @return 碰撞检测结果列表(每个刀位点一个结果)
///
/// @ingroup core
[[nodiscard]] std::vector<CollisionResult> tool_holder_collision_check(
const Toolpath& toolpath,
const ToolHolder& holder,
const brep::BrepModel& body);
/// 刀路优化 (Toolpath Optimization)
///
/// 优化刀路以减少非切削时间:
/// - 重排序段以最小化空行程(最近邻启发式)
/// - 合并共线相邻段
/// - 去除重复/过短段
/// - 可选圆角过渡
///
/// @param toolpath 待优化的原始刀路
/// @param params 优化参数
/// @return 优化后的刀路
///
/// @ingroup core
[[nodiscard]] Toolpath toolpath_optimization(
const Toolpath& toolpath,
const ToolpathOptimizationParams& params = ToolpathOptimizationParams{});
/// 进给优化 (Feed Rate Optimization)
///
/// 基于材料去除率动态调整进给速度:
/// - 估算每个刀位点的材料去除率(切削截面积 × 进给)
/// - 在去除率高的区域降低进给(保护刀具)
/// - 在去除率低的区域提高进给(提高效率)
///
/// @param toolpath 待优化的刀路
/// @param material 工件材料属性
/// @return 进给优化后的刀路(各段 feed_rate 已调整)
///
/// @ingroup core
[[nodiscard]] Toolpath feed_rate_optimization(
const Toolpath& toolpath,
const Material& material);
} // namespace vde::core