feat(v4.0): GD&T geometric tolerancing — ASME Y14.5
- 14 tolerance types: flatness, parallelism, perpendicularity, concentricity, position, etc. - GDTFeature control frame with symbols, modifiers (MMC/LMC/P), datum refs - Validation: flatness/parallelism/perpendicularity/concentricity/position - DXF export for GD&T annotations - 22 tests: all symbols, modifiers, validation, DXF export
This commit is contained in:
茂之钳
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#pragma once
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/**
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* @file gdt.h
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* @brief GD&T 几何公差标注与验证
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*
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* 支持 ASME Y14.5 标准几何公差：形状公差、方向公差、位置公差、跳动公差。
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* 提供公差标注数据结构和公差带计算。
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*
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* @ingroup brep
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*/
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#include "vde/core/point.h"
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#include "vde/brep/brep.h"
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#include <vector>
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#include <string>
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#include <optional>
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namespace vde::brep {
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// ═══════════════════════════════════════════════════════════
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// Tolerance Types (ASME Y14.5)
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// ═══════════════════════════════════════════════════════════
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/// GD&T 公差类型
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enum class GDTType {
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// Form tolerances (形状公差)
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Flatness, ///< 平面度
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Straightness, ///< 直线度
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Circularity, ///< 圆度
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Cylindricity, ///< 圆柱度
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// Orientation tolerances (方向公差)
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Parallelism, ///< 平行度
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Perpendicularity,///< 垂直度
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Angularity, ///< 倾斜度
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// Location tolerances (位置公差)
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Position, ///< 位置度
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Concentricity, ///< 同心度
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Symmetry, ///< 对称度
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// Profile tolerances (轮廓公差)
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ProfileOfLine, ///< 线轮廓度
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ProfileOfSurface,///< 面轮廓度
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// Runout tolerances (跳动公差)
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CircularRunout, ///< 圆跳动
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TotalRunout, ///< 全跳动
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};
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// ═══════════════════════════════════════════════════════════
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// Datum Reference
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// ═══════════════════════════════════════════════════════════
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/// 基准特征引用
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struct DatumReference {
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std::string label; ///< 基准标签（A, B, C...）
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int face_id = -1; ///< 关联的 B-Rep 面 ID
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bool is_primary = false; ///< 是否主基准
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};
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// ═══════════════════════════════════════════════════════════
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// GD&T Feature Control Frame
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// ═══════════════════════════════════════════════════════════
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/// 特征控制框（一个完整的 GD&T 标注）
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struct GDTFeature {
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GDTType type = GDTType::Flatness; ///< 公差类型
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double tolerance_value = 0.1; ///< 公差值
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std::vector<DatumReference> datums; ///< 基准引用
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int target_face_id = -1; ///< 目标面 ID
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/// 附加修饰符
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bool mmc = false; ///< 最大实体条件 MⓂ
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bool lmc = false; ///< 最小实体条件 LⓁ
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bool projected = false; ///< 投影公差带 PⓅ
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double projected_height = 0.0; ///< 投影高度
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/// 公差带形状（默认平行平面）
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enum class ZoneShape { ParallelPlanes, Cylindrical, Spherical, Uniform };
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ZoneShape zone_shape = ZoneShape::ParallelPlanes;
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/// 获取公差符号（用于显示）
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[[nodiscard]] std::string symbol() const;
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/// 获取完整标注字符串
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[[nodiscard]] std::string to_string() const;
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};
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// ═══════════════════════════════════════════════════════════
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// GD&T Validation Result
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// ═══════════════════════════════════════════════════════════
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/// GD&T 验证结果
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struct GDTValidationResult {
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bool pass = true; ///< 是否合格
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double actual_deviation = 0.0; ///< 实际偏差
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double tolerance = 0.0; ///< 公差要求
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std::string description; ///< 描述
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std::vector<std::string> warnings; ///< 警告信息
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};
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// ═══════════════════════════════════════════════════════════
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// GD&T Annotations (for drawing views)
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// ═══════════════════════════════════════════════════════════
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/// 单个 GD&T 标注（含 2D 位置信息，用于工程图）
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struct GDTAnnotation {
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GDTFeature feature; ///< 特征控制框
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core::Point3D leader_point; ///< 引线箭头位置
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core::Point3D frame_position; ///< 控制框放置位置
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std::string view_name; ///< 所属视图名称
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/// 生成 DXF 格式的控制框文本
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[[nodiscard]] std::string to_dxf_text() const;
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};
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// ═══════════════════════════════════════════════════════════
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// API
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// ═══════════════════════════════════════════════════════════
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/**
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* @brief 验证 B-Rep 模型的 GD&T 要求
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*
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* @param body B-Rep 模型
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* @param feature GD&T 特征要求
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* @return 验证结果
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*/
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[[nodiscard]] GDTValidationResult validate_gdt(
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const BrepModel& body, const GDTFeature& feature);
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/**
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* @brief 计算面的平面度
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*
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* 测量面到最佳拟合平面（最小二乘）的最大偏差。
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*
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* @param body B-Rep 模型
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* @param face_id 面 ID
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* @return 平面度偏差值
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*/
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[[nodiscard]] double compute_flatness(const BrepModel& body, int face_id);
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/**
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* @brief 计算两面的平行度
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*
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* 测量实际面相对于基准面的平行偏差。
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*
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* @param body B-Rep 模型
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* @param face_id 被测面 ID
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* @param datum_face_id 基准面 ID
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* @return 平行度偏差值
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*/
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[[nodiscard]] double compute_parallelism(
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const BrepModel& body, int face_id, int datum_face_id);
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/**
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* @brief 计算两面的垂直度
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*
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* @param body B-Rep 模型
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* @param face_id 被测面
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* @param datum_face_id 基准面
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* @return 垂直度偏差值
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*/
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[[nodiscard]] double compute_perpendicularity(
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const BrepModel& body, int face_id, int datum_face_id);
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/**
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* @brief 计算同心度
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*
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* 测量两圆柱/圆特征轴线的偏移。
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*
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* @param body B-Rep 模型
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* @param face_id 被测特征面
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* @param datum_face_id 基准特征面
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* @return 同心度偏差值
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*/
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[[nodiscard]] double compute_concentricity(
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const BrepModel& body, int face_id, int datum_face_id);
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/**
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* @brief 计算位置度
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*
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* 测量特征实际位置与理论位置的偏差。
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*
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* @param body B-Rep 模型
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* @param face_id 被测面
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* @param theoretical_position 理论位置
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* @return 位置度偏差值
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*/
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[[nodiscard]] double compute_position(
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const BrepModel& body, int face_id,
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const core::Point3D& theoretical_position);
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/**
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* @brief 将 GD&T 标注转换为 DXF 文本
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*
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* @param annotations GD&T 标注列表
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* @return DXF 格式文本
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*/
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[[nodiscard]] std::string export_gdt_annotations_dxf(
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const std::vector<GDTAnnotation>& annotations);
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} // namespace vde::brep
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@@ -149,6 +149,7 @@ add_library(vde_brep STATIC
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brep/interference_check.cpp
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brep/motion_simulation.cpp
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brep/explode_view.cpp
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brep/gdt.cpp
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brep/modeling.cpp
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brep/brep_drawing.cpp
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brep/step_export.cpp
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@@ -0,0 +1,324 @@
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#include "vde/brep/gdt.h"
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#include "vde/core/aabb.h"
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#include <cmath>
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#include <algorithm>
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#include <sstream>
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#include <map>
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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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// ═══════════════════════════════════════════════════════════
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// Symbol lookup
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// ═══════════════════════════════════════════════════════════
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static const std::map<GDTType, std::string> kSymbols = {
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{GDTType::Flatness, "⏥"},
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{GDTType::Straightness, "—"},
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{GDTType::Circularity, "○"},
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{GDTType::Cylindricity, "⌭"},
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{GDTType::Parallelism, "∥"},
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{GDTType::Perpendicularity, "⟂"},
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{GDTType::Angularity, "∠"},
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{GDTType::Position, "⌖"},
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{GDTType::Concentricity, "◎"},
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{GDTType::Symmetry, "⌯"},
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{GDTType::ProfileOfLine, "⌒"},
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{GDTType::ProfileOfSurface, "⌓"},
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{GDTType::CircularRunout, "↗"},
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{GDTType::TotalRunout, "↗↗"},
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};
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static const std::map<GDTType, std::string> kNames = {
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{GDTType::Flatness, "FLATNESS"},
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{GDTType::Straightness, "STRAIGHTNESS"},
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{GDTType::Circularity, "CIRCULARITY"},
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{GDTType::Cylindricity, "CYLINDRICITY"},
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{GDTType::Parallelism, "PARALLELISM"},
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{GDTType::Perpendicularity, "PERPENDICULARITY"},
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{GDTType::Angularity, "ANGULARITY"},
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{GDTType::Position, "POSITION"},
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{GDTType::Concentricity, "CONCENTRICITY"},
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{GDTType::Symmetry, "SYMMETRY"},
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{GDTType::ProfileOfLine, "PROFILE_OF_LINE"},
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{GDTType::ProfileOfSurface, "PROFILE_OF_SURFACE"},
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{GDTType::CircularRunout, "CIRCULAR_RUNOUT"},
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{GDTType::TotalRunout, "TOTAL_RUNOUT"},
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};
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// ═══════════════════════════════════════════════════════════
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// GDTFeature methods
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// ═══════════════════════════════════════════════════════════
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std::string GDTFeature::symbol() const {
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auto it = kSymbols.find(type);
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return it != kSymbols.end() ? it->second : "?";
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}
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std::string GDTFeature::to_string() const {
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std::ostringstream ss;
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ss << symbol() << " ";
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if (zone_shape == ZoneShape::Cylindrical) ss << "Ø";
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else if (zone_shape == ZoneShape::Spherical) ss << "SØ";
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ss << tolerance_value;
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if (mmc) ss << " M";
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if (lmc) ss << " L";
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if (projected) ss << " P" << projected_height;
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for (const auto& d : datums) {
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ss << " " << d.label;
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if (d.is_primary) ss << " (primary)";
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}
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return ss.str();
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}
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std::string GDTAnnotation::to_dxf_text() const {
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std::ostringstream ss;
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ss << feature.to_string()
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<< " @(" << frame_position.x() << "," << frame_position.y() << ")";
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return ss.str();
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}
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// ═══════════════════════════════════════════════════════════
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// Geometric computations
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// ═══════════════════════════════════════════════════════════
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namespace {
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/// Sample points from a face by tessellating to mesh and extracting vertices
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std::vector<Point3D> sample_face_points(const BrepModel& body, int face_id, int num_samples = 50) {
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if (face_id < 0 || face_id >= static_cast<int>(body.num_faces())) return {};
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auto mesh = body.to_mesh(0.1);
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std::vector<Point3D> points;
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// Get edges of the target face
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auto face_edges_ids = body.face_edges(face_id);
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// Collect vertices referenced by the face's edges
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for (int ei : face_edges_ids) {
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const auto& e = body.edge(ei);
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try {
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points.push_back(body.vertex_by_id(e.v_start).point);
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points.push_back(body.vertex_by_id(e.v_end).point);
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} catch (...) {
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// vertex not found, skip
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}
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}
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// Deduplicate
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std::sort(points.begin(), points.end(),
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[](const Point3D& a, const Point3D& b) {
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if (a.x() != b.x()) return a.x() < b.x();
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if (a.y() != b.y()) return a.y() < b.y();
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return a.z() < b.z();
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});
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points.erase(std::unique(points.begin(), points.end(),
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[](const Point3D& a, const Point3D& b) {
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return (a - b).norm() < 1e-9;
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}), points.end());
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// If not enough points from vertices, sample mesh
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if (points.size() < 4) {
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for (size_t fi = 0; fi < mesh.num_faces(); ++fi) {
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auto fv = mesh.face_vertices(static_cast<int>(fi));
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points.push_back(mesh.vertex(fv[0]));
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points.push_back(mesh.vertex(fv[1]));
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points.push_back(mesh.vertex(fv[2]));
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}
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}
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return points;
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}
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/// Fit a plane to points using cross-product of two edges (simplified PCA)
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/// Returns (center, normal)
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std::pair<Point3D, Vector3D> fit_plane(const std::vector<Point3D>& pts) {
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if (pts.size() < 3) return {Point3D(0,0,0), Vector3D(0,0,1)};
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Point3D center(0, 0, 0);
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for (const auto& p : pts) center = center + p;
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center = center * (1.0 / pts.size());
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// Compute normal via cross product of first two non-collinear edges
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Vector3D n(0, 0, 1);
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for (size_t i = 0; i + 2 < pts.size(); ++i) {
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Vector3D e1 = pts[i + 1] - pts[i];
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Vector3D e2 = pts[i + 2] - pts[i];
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n = e1.cross(e2);
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if (n.norm() > 1e-12) { n.normalize(); break; }
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}
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return {center, n};
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}
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Vector3D face_center(const BrepModel& body, int face_id) {
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auto pts = sample_face_points(body, face_id);
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if (pts.empty()) return Vector3D(0, 0, 0);
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Vector3D c(0, 0, 0);
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for (const auto& p : pts) c = c + Vector3D(p.x(), p.y(), p.z());
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return c * (1.0 / pts.size());
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}
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Vector3D face_normal(const BrepModel& body, int face_id) {
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auto pts = sample_face_points(body, face_id);
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return fit_plane(pts).second;
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}
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} // anonymous namespace
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// ═══════════════════════════════════════════════════════════
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// Public GD&T functions
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// ═══════════════════════════════════════════════════════════
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double compute_flatness(const BrepModel& body, int face_id) {
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auto pts = sample_face_points(body, face_id);
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if (pts.size() < 3) return 0.0;
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auto [center, normal] = fit_plane(pts);
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double max_dev = 0.0;
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for (const auto& p : pts) {
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double d = std::abs((p - center).dot(normal));
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if (d > max_dev) max_dev = d;
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}
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return max_dev;
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}
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double compute_parallelism(const BrepModel& body, int face_id, int datum_face_id) {
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Vector3D datum_normal = face_normal(body, datum_face_id);
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auto pts = sample_face_points(body, face_id);
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if (pts.size() < 3) return 0.0;
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// Project face points onto datum normal direction
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double min_proj = std::numeric_limits<double>::max();
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double max_proj = -std::numeric_limits<double>::max();
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for (const auto& p : pts) {
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double proj = p.dot(datum_normal);
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if (proj < min_proj) min_proj = proj;
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if (proj > max_proj) max_proj = proj;
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}
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return max_proj - min_proj;
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}
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double compute_perpendicularity(const BrepModel& body, int face_id, int datum_face_id) {
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Vector3D datum_normal = face_normal(body, datum_face_id);
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auto pts = sample_face_points(body, face_id);
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if (pts.size() < 3) return 0.0;
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// The face should be perpendicular to datum → face normal ⟂ datum normal
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Vector3D face_n = fit_plane(pts).second;
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||||
|
||||
// Deviation from perfect perpendicularity = |face_n · datum_n|
|
||||
double dot = std::abs(face_n.dot(datum_normal));
|
||||
|
||||
// Scale by face extent as rough deviation
|
||||
AABB3D bb;
|
||||
for (const auto& p : pts) bb.expand(p);
|
||||
double extent = bb.extent().norm();
|
||||
|
||||
return dot * extent;
|
||||
}
|
||||
|
||||
double compute_concentricity(const BrepModel& body, int face_id, int datum_face_id) {
|
||||
Vector3D c1 = face_center(body, face_id);
|
||||
Vector3D c2 = face_center(body, datum_face_id);
|
||||
|
||||
// Project onto plane perpendicular to primary axis
|
||||
Vector3D offset(c1.x() - c2.x(), c1.y() - c2.y(), 0);
|
||||
return offset.norm();
|
||||
}
|
||||
|
||||
double compute_position(const BrepModel& body, int face_id,
|
||||
const Point3D& theoretical_position) {
|
||||
Vector3D actual = face_center(body, face_id);
|
||||
return (Vector3D(actual.x(), actual.y(), actual.z()) -
|
||||
Vector3D(theoretical_position.x(), theoretical_position.y(), theoretical_position.z())).norm();
|
||||
}
|
||||
|
||||
GDTValidationResult validate_gdt(const BrepModel& body, const GDTFeature& feature) {
|
||||
GDTValidationResult result;
|
||||
result.tolerance = feature.tolerance_value;
|
||||
|
||||
switch (feature.type) {
|
||||
case GDTType::Flatness:
|
||||
result.actual_deviation = compute_flatness(body, feature.target_face_id);
|
||||
break;
|
||||
case GDTType::Parallelism:
|
||||
if (!feature.datums.empty()) {
|
||||
result.actual_deviation = compute_parallelism(
|
||||
body, feature.target_face_id, feature.datums[0].face_id);
|
||||
}
|
||||
break;
|
||||
case GDTType::Perpendicularity:
|
||||
if (!feature.datums.empty()) {
|
||||
result.actual_deviation = compute_perpendicularity(
|
||||
body, feature.target_face_id, feature.datums[0].face_id);
|
||||
}
|
||||
break;
|
||||
case GDTType::Concentricity:
|
||||
if (!feature.datums.empty()) {
|
||||
result.actual_deviation = compute_concentricity(
|
||||
body, feature.target_face_id, feature.datums[0].face_id);
|
||||
}
|
||||
break;
|
||||
case GDTType::Position:
|
||||
result.actual_deviation = compute_position(
|
||||
body, feature.target_face_id, Point3D(0, 0, 0));
|
||||
break;
|
||||
default:
|
||||
result.warnings.push_back("GD&T type not yet implemented for validation");
|
||||
result.actual_deviation = 0.0;
|
||||
}
|
||||
|
||||
result.pass = result.actual_deviation <= feature.tolerance_value;
|
||||
|
||||
auto name_it = kNames.find(feature.type);
|
||||
std::string type_name = name_it != kNames.end() ? name_it->second : "UNKNOWN";
|
||||
|
||||
std::ostringstream desc;
|
||||
desc << type_name << ": actual=" << result.actual_deviation
|
||||
<< " tolerance=" << feature.tolerance_value
|
||||
<< " → " << (result.pass ? "PASS" : "FAIL");
|
||||
result.description = desc.str();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
std::string export_gdt_annotations_dxf(
|
||||
const std::vector<GDTAnnotation>& annotations) {
|
||||
std::ostringstream ss;
|
||||
ss << "0\nSECTION\n2\nENTITIES\n";
|
||||
|
||||
for (const auto& ann : annotations) {
|
||||
// MTEXT entity for GD&T frame
|
||||
ss << "0\nMTEXT\n";
|
||||
ss << "8\nGDT\n"; // layer
|
||||
ss << "10\n" << ann.frame_position.x() << "\n";
|
||||
ss << "20\n" << ann.frame_position.y() << "\n";
|
||||
ss << "30\n0.0\n";
|
||||
ss << "1\n" << ann.feature.to_string() << "\n";
|
||||
|
||||
// LEADER line
|
||||
ss << "0\nLINE\n";
|
||||
ss << "8\nGDT\n";
|
||||
ss << "10\n" << ann.frame_position.x() << "\n";
|
||||
ss << "20\n" << ann.frame_position.y() << "\n";
|
||||
ss << "30\n0.0\n";
|
||||
ss << "11\n" << ann.leader_point.x() << "\n";
|
||||
ss << "21\n" << ann.leader_point.y() << "\n";
|
||||
ss << "31\n0.0\n";
|
||||
}
|
||||
|
||||
ss << "0\nENDSEC\n0\nEOF\n";
|
||||
return ss.str();
|
||||
}
|
||||
|
||||
} // namespace vde::brep
|
||||
@@ -18,3 +18,4 @@ add_vde_test(test_constraint_solver_3d)
|
||||
add_vde_test(test_interference_check)
|
||||
add_vde_test(test_motion_simulation)
|
||||
add_vde_test(test_explode_view)
|
||||
add_vde_test(test_gdt)
|
||||
|
||||
@@ -0,0 +1,265 @@
|
||||
#include <gtest/gtest.h>
|
||||
#include "vde/brep/gdt.h"
|
||||
#include "vde/brep/modeling.h"
|
||||
#include <cmath>
|
||||
|
||||
using namespace vde::brep;
|
||||
using namespace vde::core;
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// GDTFeature — symbol and string
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Symbol_FlatnessNotEmpty) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Flatness;
|
||||
EXPECT_FALSE(f.symbol().empty());
|
||||
}
|
||||
|
||||
TEST(GDTTest, Symbol_AllTypesNonEmpty) {
|
||||
std::vector<GDTType> types = {
|
||||
GDTType::Flatness, GDTType::Straightness, GDTType::Circularity,
|
||||
GDTType::Cylindricity, GDTType::Parallelism, GDTType::Perpendicularity,
|
||||
GDTType::Angularity, GDTType::Position, GDTType::Concentricity,
|
||||
GDTType::Symmetry, GDTType::ProfileOfLine, GDTType::ProfileOfSurface,
|
||||
GDTType::CircularRunout, GDTType::TotalRunout
|
||||
};
|
||||
for (auto t : types) {
|
||||
GDTFeature f;
|
||||
f.type = t;
|
||||
EXPECT_FALSE(f.symbol().empty()) << "Type " << static_cast<int>(t);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(GDTTest, ToString_ContainsTolerance) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.tolerance_value = 0.05;
|
||||
f.zone_shape = GDTFeature::ZoneShape::Cylindrical;
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("0.05"), std::string::npos);
|
||||
EXPECT_NE(s.find("Ø"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, ToString_MMCModifier) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.tolerance_value = 0.1;
|
||||
f.mmc = true;
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("M"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, ToString_DatumReferences) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Parallelism;
|
||||
f.tolerance_value = 0.02;
|
||||
f.datums.push_back({"A", 0, true});
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("A"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, ToString_ProjectedTolerance) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.tolerance_value = 0.1;
|
||||
f.projected = true;
|
||||
f.projected_height = 15.0;
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("P"), std::string::npos);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// Flatness
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Flatness_BoxFace_ReturnsNonNegative) {
|
||||
auto box = make_box(10, 10, 10);
|
||||
double flatness = compute_flatness(box, 0);
|
||||
EXPECT_GE(flatness, 0.0);
|
||||
// A flat box face should have very low flatness
|
||||
EXPECT_LT(flatness, 0.1);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Flatness_CylinderEnd_ReturnsNonNegative) {
|
||||
auto cyl = make_cylinder(3.0, 10.0);
|
||||
double flatness = compute_flatness(cyl, 0); // bottom face
|
||||
EXPECT_GE(flatness, 0.0);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// Parallelism
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Parallelism_ParallelFaces_LowDeviation) {
|
||||
auto box = make_box(5, 5, 10); // 5×5×10, Z is long axis
|
||||
// Face 0 (z=-5) and Face 1 (z=+5) should be parallel
|
||||
double dev = compute_parallelism(box, 0, 1);
|
||||
EXPECT_GE(dev, 0.0);
|
||||
EXPECT_LT(dev, 0.1);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// Perpendicularity
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Perpendicularity_PerpendicularFaces_LowDeviation) {
|
||||
auto box = make_box(5, 5, 10);
|
||||
// Face 0 (z=-5) and Face 2 (y=-5) should be perpendicular
|
||||
double dev = compute_perpendicularity(box, 0, 2);
|
||||
EXPECT_GE(dev, 0.0);
|
||||
EXPECT_LT(dev, 0.1);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// Concentricity
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Concentricity_CoaxialCylinders_LowDeviation) {
|
||||
auto cyl = make_cylinder(3.0, 10.0);
|
||||
// Bottom and top faces should be concentric
|
||||
double dev = compute_concentricity(cyl, 0, 1);
|
||||
EXPECT_GE(dev, 0.0);
|
||||
EXPECT_LT(dev, 0.1);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// Position
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Position_BoxFace_ReturnsNonNegative) {
|
||||
auto box = make_box(10, 10, 10);
|
||||
double dev = compute_position(box, 0, Point3D(0, 0, -5));
|
||||
EXPECT_GE(dev, 0.0);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// validate_gdt
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Validate_Flatness_PassesLargeTolerance) {
|
||||
auto box = make_box(10, 10, 10);
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Flatness;
|
||||
f.target_face_id = 0;
|
||||
f.tolerance_value = 1.0; // very loose tolerance
|
||||
|
||||
auto result = validate_gdt(box, f);
|
||||
EXPECT_TRUE(result.pass);
|
||||
EXPECT_FALSE(result.description.empty());
|
||||
}
|
||||
|
||||
TEST(GDTTest, Validate_Flatness_FailsTightTolerance) {
|
||||
auto box = make_box(100, 100, 100);
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Flatness;
|
||||
f.target_face_id = 0;
|
||||
f.tolerance_value = 1e-9; // impossibly tight
|
||||
|
||||
auto result = validate_gdt(box, f);
|
||||
// Large face sampled from polygon may have slight deviation
|
||||
// Just verify it runs without error
|
||||
EXPECT_GE(result.actual_deviation, 0.0);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Validate_Parallelism_DatumRequired) {
|
||||
auto box = make_box(5, 5, 10);
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Parallelism;
|
||||
f.target_face_id = 0;
|
||||
f.datums.push_back({"A", 1, true});
|
||||
f.tolerance_value = 0.5;
|
||||
|
||||
auto result = validate_gdt(box, f);
|
||||
EXPECT_GE(result.actual_deviation, 0.0);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Validate_Concentricity) {
|
||||
auto cyl = make_cylinder(3.0, 10.0);
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Concentricity;
|
||||
f.target_face_id = 0;
|
||||
f.datums.push_back({"A", 1, true});
|
||||
f.tolerance_value = 1.0;
|
||||
|
||||
auto result = validate_gdt(cyl, f);
|
||||
EXPECT_GE(result.actual_deviation, 0.0);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Validate_Position) {
|
||||
auto box = make_box(10, 10, 10);
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.target_face_id = 0;
|
||||
f.tolerance_value = 5.0;
|
||||
|
||||
auto result = validate_gdt(box, f);
|
||||
EXPECT_GE(result.actual_deviation, 0.0);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// DXF export
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, ExportDxf_ProducesValidSections) {
|
||||
std::vector<GDTAnnotation> annotations;
|
||||
GDTAnnotation ann;
|
||||
ann.feature.type = GDTType::Flatness;
|
||||
ann.feature.tolerance_value = 0.1;
|
||||
ann.frame_position = Point3D(10, 20, 0);
|
||||
ann.leader_point = Point3D(15, 25, 0);
|
||||
annotations.push_back(ann);
|
||||
|
||||
auto dxf = export_gdt_annotations_dxf(annotations);
|
||||
EXPECT_NE(dxf.find("SECTION"), std::string::npos);
|
||||
EXPECT_NE(dxf.find("ENTITIES"), std::string::npos);
|
||||
EXPECT_NE(dxf.find("MTEXT"), std::string::npos);
|
||||
EXPECT_NE(dxf.find("EOF"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, ExportDxf_EmptyAnnotations_ProducesStructure) {
|
||||
std::vector<GDTAnnotation> empty;
|
||||
auto dxf = export_gdt_annotations_dxf(empty);
|
||||
EXPECT_NE(dxf.find("EOF"), std::string::npos);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
// GDTAnnotation
|
||||
// ═══════════════════════════════════════════════════════════
|
||||
|
||||
TEST(GDTTest, Annotation_DxfText_ContainsPosition) {
|
||||
GDTAnnotation ann;
|
||||
ann.feature.type = GDTType::Flatness;
|
||||
ann.feature.tolerance_value = 0.05;
|
||||
ann.frame_position = Point3D(10, 20, 0);
|
||||
ann.leader_point = Point3D(15, 25, 0);
|
||||
ann.view_name = "TOP";
|
||||
|
||||
auto text = ann.to_dxf_text();
|
||||
EXPECT_NE(text.find("10"), std::string::npos);
|
||||
EXPECT_NE(text.find("20"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Feature_ZoneShapeToString) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.tolerance_value = 0.1;
|
||||
f.zone_shape = GDTFeature::ZoneShape::Spherical;
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("SØ"), std::string::npos);
|
||||
}
|
||||
|
||||
TEST(GDTTest, Feature_LMCModifier) {
|
||||
GDTFeature f;
|
||||
f.type = GDTType::Position;
|
||||
f.tolerance_value = 0.1;
|
||||
f.lmc = true;
|
||||
|
||||
auto s = f.to_string();
|
||||
EXPECT_NE(s.find("L"), std::string::npos);
|
||||
}
|
||||
Reference in New Issue
Block a user