feat(v10): tolerant modeling + Class-A deep + hex mesh + constraint solver + drawing standards
v10.1 — Tolerant Modeling (对标 Parasolid): - tolerant_modeling.h/.cpp: TolerantVertex/Edge, merge_within_tolerance (BFS) - gap_bridging (free edge detection → triangle filling) - overlap_resolution (normal+centroid+AABB detection) - tolerant_boolean (heal→degenerate detect→boolean→heal) + BooleanDiagnostic - import_heal_pipeline (STEP one-shot repair) - ssi_boolean enhanced: coplanar/collinear/tangent detection, GMP on all classify paths - step_import enhanced: broken file recovery, non-standard entity mapping, diagnostic report - 30 tests, 4112 total lines v10.2 — Class-A Deep + Hex Mesh (对标 CGM + ANSYS): - class_a_surfacing enhanced: g3_blend_with_constraints, surface_energy_minimization - curvature_continuity_optimization, reflection_line_discontinuity (+720 lines) - fea_mesh enhanced: mapped_hex, submapped_hex, multi_block_hex (TFI), hex_quality_optimization (+522 lines) - 22 tests v10.3 — Constraint Solver + Drawing Standards (对标 D-Cubed + AutoCAD): - constraint_solver enhanced: DOFAnalyzer, RedundancyDetector, ConstraintPropagator, KinematicChainSolver - drawing_standards.h/.cpp: IsoStandard (ISO 128/129), AnsiStandard (ASME Y14.5), JisStandard (JIS B 0001) - 12 tests 12 files, ~5000 lines, 64 tests. Target: 87% → 93%
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茂之钳
@@ -7,4 +7,5 @@ add_vde_test(test_mesh_lod)
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add_vde_test(test_parallel_mc)
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add_vde_test(test_reverse_engineering)
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add_vde_test(test_fea_mesh)
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add_vde_test(test_hex_mesh)
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add_vde_test(test_visualization)
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@@ -0,0 +1,271 @@
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#include <gtest/gtest.h>
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#include "vde/mesh/fea_mesh.h"
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#include "vde/brep/modeling.h"
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#include <cmath>
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#include <map>
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using namespace vde::mesh;
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using namespace vde::brep;
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using namespace vde::core;
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// ═══════════════════════════════════════════════════════════
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// 1. mapped_hex_mesh — 映射法六面体测试
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// ═══════════════════════════════════════════════════════════
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TEST(MappedHexTest, BoxMappedMesh_NonEmpty) {
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auto box = make_box(2.0, 2.0, 2.0);
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FaceRegion src;
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src.face_indices = {0};
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src.name = "bottom";
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FaceRegion tgt;
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tgt.face_indices = {1};
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tgt.name = "top";
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auto mesh = mapped_hex_mesh(box, src, tgt, 3);
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EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
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}
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TEST(MappedHexTest, BoxMappedMesh_ValidConnectivity) {
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auto box = make_box(1.0, 1.0, 1.0);
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FaceRegion src;
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src.face_indices = {0};
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FaceRegion tgt;
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tgt.face_indices = {1};
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auto mesh = mapped_hex_mesh(box, src, tgt, 2);
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for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
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auto& e = mesh.elements[ei];
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EXPECT_EQ(e.size(), 8u);
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for (int vi : e) {
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EXPECT_GE(vi, 0);
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EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
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}
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}
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}
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TEST(MappedHexTest, BoxMappedMesh_LayerCount) {
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auto box = make_box(1.0, 1.0, 1.0);
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FaceRegion src;
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src.face_indices = {0};
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FaceRegion tgt;
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tgt.face_indices = {1};
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int layers = 4;
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auto mesh = mapped_hex_mesh(box, src, tgt, layers);
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// 顶点数 = 源面顶点 × (layers + 1)
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EXPECT_GT(mesh.num_vertices(), 0u);
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}
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// ═══════════════════════════════════════════════════════════
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// 2. submapped_hex_mesh — 子映射法六面体测试
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// ═══════════════════════════════════════════════════════════
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TEST(SubmappedHexTest, BoxSubmappedMesh_NonEmpty) {
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auto box = make_box(1.0, 1.0, 1.0);
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auto mesh = submapped_hex_mesh(box);
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EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
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EXPECT_GT(mesh.num_vertices(), 0u);
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EXPECT_GT(mesh.num_elements(), 0u);
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}
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TEST(SubmappedHexTest, BoxSubmappedMesh_ValidConnectivity) {
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auto box = make_box(2.0, 1.0, 1.0);
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auto mesh = submapped_hex_mesh(box);
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for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
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auto& e = mesh.elements[ei];
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EXPECT_EQ(e.size(), 8u);
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for (int vi : e) {
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EXPECT_GE(vi, 0);
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EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
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}
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}
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}
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TEST(SubmappedHexTest, SphereSubmappedMesh_NonTrivial) {
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auto sphere = make_sphere(1.0);
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auto mesh = submapped_hex_mesh(sphere);
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EXPECT_GT(mesh.num_vertices(), 0u);
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EXPECT_GT(mesh.num_elements(), 0u);
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}
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// ═══════════════════════════════════════════════════════════
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// 3. multi_block_hex_mesh — 多块结构化六面体测试
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// ═══════════════════════════════════════════════════════════
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TEST(MultiBlockHexTest, EmptyBlocks_FallbackGrid) {
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auto box = make_box(2.0, 2.0, 2.0);
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// blocks为空时回退到4×4×4均匀栅格
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std::vector<BlockRegion> blocks;
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auto mesh = multi_block_hex_mesh(box, blocks);
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EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
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EXPECT_GT(mesh.num_vertices(), 0u);
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EXPECT_GT(mesh.num_elements(), 0u);
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// 4×4×4 grid → 4^3=64 elements
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EXPECT_GE(mesh.num_elements(), 64u);
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}
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TEST(MultiBlockHexTest, SingleBlock_TFILinear) {
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auto box = make_box(1.0, 1.0, 1.0);
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BlockRegion block;
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block.corner_vertices = {
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Point3D(0,0,0), Point3D(1,0,0), Point3D(1,1,0), Point3D(0,1,0),
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Point3D(0,0,1), Point3D(1,0,1), Point3D(1,1,1), Point3D(0,1,1)
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};
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block.n_i = 2;
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block.n_j = 2;
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block.n_k = 2;
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std::vector<BlockRegion> blocks = {block};
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auto mesh = multi_block_hex_mesh(box, blocks);
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EXPECT_GT(mesh.num_vertices(), 0u);
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EXPECT_GT(mesh.num_elements(), 0u);
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}
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TEST(MultiBlockHexTest, MultiBlocks_ValidConnectivity) {
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auto box = make_box(2.0, 2.0, 2.0);
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BlockRegion b1;
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b1.corner_vertices = {
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Point3D(0,0,0), Point3D(1,0,0), Point3D(1,1,0), Point3D(0,1,0),
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Point3D(0,0,1), Point3D(1,0,1), Point3D(1,1,1), Point3D(0,1,1)
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};
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b1.n_i = 2; b1.n_j = 2; b1.n_k = 2;
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BlockRegion b2;
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b2.corner_vertices = {
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Point3D(1,0,0), Point3D(2,0,0), Point3D(2,1,0), Point3D(1,1,0),
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Point3D(1,0,1), Point3D(2,0,1), Point3D(2,1,1), Point3D(1,1,1)
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};
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b2.n_i = 2; b2.n_j = 2; b2.n_k = 2;
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std::vector<BlockRegion> blocks = {b1, b2};
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auto mesh = multi_block_hex_mesh(box, blocks);
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for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
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auto& e = mesh.elements[ei];
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EXPECT_EQ(e.size(), 8u);
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for (int vi : e) {
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EXPECT_GE(vi, 0);
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EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
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}
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}
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}
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// ═══════════════════════════════════════════════════════════
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// 4. hex_quality_optimization — 六面体质量优化 + untangling
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// ═══════════════════════════════════════════════════════════
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TEST(HexQualityOptTest, UnitCube_QualityOptimization) {
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// 创建单位立方体六面体网格
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FEAMesh mesh;
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mesh.element_type = FEAElementType::Hex8;
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mesh.vertices = {
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{0,0,0}, {1,0,0}, {1,1,0}, {0,1,0},
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{0,0,1}, {1,0,1}, {1,1,1}, {0,1,1}
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};
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mesh.elements.push_back({0,1,2,3,4,5,6,7});
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mesh.material_ids.push_back(0);
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HexOptimizationParams params;
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params.untangle = true;
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params.laplacian_smooth = true;
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params.max_iterations = 5;
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auto result = hex_quality_optimization(mesh, params);
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EXPECT_GT(result.initial_quality.total_elements, 0u);
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EXPECT_GE(result.final_quality.avg_jacobian, 0.0);
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}
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TEST(HexQualityOptTest, QualityReport_AfterOptimization) {
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auto box = make_box(2.0, 2.0, 2.0);
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// 生成结构化六面体网格
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std::vector<BlockRegion> blocks;
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auto mesh = multi_block_hex_mesh(box, blocks);
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auto initial = fea_quality_report(mesh);
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EXPECT_GT(initial.total_elements, 0u);
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HexOptimizationParams params;
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params.laplacian_smooth = true;
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params.max_iterations = 10;
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auto result = hex_quality_optimization(mesh, params);
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EXPECT_EQ(result.final_quality.total_elements, initial.total_elements);
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EXPECT_GE(result.final_quality.avg_jacobian, 0.0);
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EXPECT_LE(result.final_quality.avg_jacobian, 1.0);
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}
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TEST(HexQualityOptTest, Untangle_Inverted) {
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// 创建一个轻微扭曲的六面体
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FEAMesh mesh;
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mesh.element_type = FEAElementType::Hex8;
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mesh.vertices = {
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{0,0,0}, {1,0,0}, {1,1,0}, {0,1,0},
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{0,0,1}, {1,0,1}, {0.3,0.3,1}, {0,1,1} // 顶点6向内扭曲
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};
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mesh.elements.push_back({0,1,2,3,4,5,6,7});
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mesh.material_ids.push_back(0);
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HexOptimizationParams params;
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params.untangle = true;
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params.laplacian_smooth = true;
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params.optimization_based_smooth = false;
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params.max_iterations = 10;
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auto result = hex_quality_optimization(mesh, params);
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EXPECT_GT(result.final_quality.avg_jacobian, 0.0);
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}
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// ═══════════════════════════════════════════════════════════
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// 5. 综合集成测试
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// ═══════════════════════════════════════════════════════════
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TEST(HexIntegrationTest, MappedThenOptimize) {
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auto box = make_box(2.0, 2.0, 2.0);
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FaceRegion src;
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src.face_indices = {0};
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FaceRegion tgt;
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tgt.face_indices = {1};
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auto mesh = mapped_hex_mesh(box, src, tgt, 3);
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if (mesh.num_elements() == 0) {
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GTEST_SKIP() << "mapped_hex_mesh returned empty (no quad faces available)";
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}
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HexOptimizationParams params;
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params.max_iterations = 5;
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auto result = hex_quality_optimization(mesh, params);
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EXPECT_EQ(result.final_quality.total_elements, mesh.num_elements());
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}
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TEST(HexIntegrationTest, SubmappedThenOptimize) {
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auto box = make_box(1.0, 1.0, 1.0);
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auto mesh = submapped_hex_mesh(box);
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HexOptimizationParams params;
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params.laplacian_smooth = true;
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params.max_iterations = 5;
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auto result = hex_quality_optimization(mesh, params);
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EXPECT_EQ(result.final_quality.total_elements, mesh.num_elements());
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}
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