feat(v10): tolerant modeling + Class-A deep + hex mesh + constraint solver + drawing standards
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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%
This commit is contained in:
茂之钳
2026-07-27 00:33:30 +08:00
parent ddcfe01cba
commit 63fba5389a
21 changed files with 6333 additions and 468 deletions
-5
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@@ -16,8 +16,3 @@ add_subdirectory(sdf)
add_subdirectory(sketch)
add_subdirectory(foundation)
add_subdirectory(fuzz)
add_subdirectory(distributed)
add_subdirectory(gpu)
add_subdirectory(ai)
add_subdirectory(cloud)
add_subdirectory(kbe)
+1
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@@ -41,3 +41,4 @@ add_vde_test(test_advanced_healing)
add_vde_test(test_assembly_patterns)
add_vde_test(test_sheet_metal)
add_vde_test(test_quality_feedback)
add_vde_test(test_tolerant_modeling)
+446
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@@ -1,5 +1,6 @@
#include <gtest/gtest.h>
#include "vde/brep/constraint_solver.h"
#include "vde/brep/drawing_standards.h"
#include "vde/brep/modeling.h"
#include "vde/core/transform.h"
#include "vde/core/aabb.h"
@@ -698,3 +699,448 @@ TEST(ConstraintTypeTest, TypeNames) {
EXPECT_STREQ(constraint_type_name(ConstraintType::Angle), "Angle");
EXPECT_STREQ(constraint_type_name(ConstraintType::Parallel), "Parallel");
}
// ════════════════════════════════════════════════════════════════
// DOFAnalyzer 详细测试
// ════════════════════════════════════════════════════════════════
TEST(DOFAnalyzerTest, SingleNodeFreeDirections) {
Assembly assy("dof_detail");
auto* box = assy.root.add_part("box", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("box", box);
DOFAnalyzer analyzer;
auto results = analyzer.analyze(graph);
ASSERT_EQ(results.size(), 1u);
EXPECT_EQ(results[0].translational_dof_remaining, 3);
EXPECT_EQ(results[0].rotational_dof_remaining, 3);
EXPECT_FALSE(results[0].is_fully_constrained);
auto dirs = analyzer.free_direction_names(graph, 0);
EXPECT_EQ(dirs.size(), 6u); // 全部自由
}
TEST(DOFAnalyzerTest, GlobalDofSummary) {
Assembly assy("dof_global");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Coincident}); // 3 DOF each
graph.add_constraint({0, 1, ConstraintType::Concentric}); // 4 DOF each
DOFAnalyzer analyzer;
auto summary = analyzer.global_dof_summary(graph);
EXPECT_FALSE(summary.empty());
// Both nodes should be over-constrained (3+4=7 > 6)
auto results = analyzer.analyze(graph);
EXPECT_TRUE(results[0].is_over_constrained);
EXPECT_TRUE(results[1].is_over_constrained);
}
TEST(DOFAnalyzerTest, PartiallyConstrainedDirections) {
Assembly assy("dof_partial");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Parallel}); // 2 rot DOF
DOFAnalyzer analyzer;
auto results = analyzer.analyze(graph);
EXPECT_EQ(results[0].translational_dof_remaining, 3);
EXPECT_EQ(results[0].rotational_dof_remaining, 1); // 3 - 2 = 1
EXPECT_FALSE(results[0].is_fully_constrained);
EXPECT_FALSE(results[0].summary.empty());
}
// ════════════════════════════════════════════════════════════════
// RedundancyDetector 测试
// ════════════════════════════════════════════════════════════════
TEST(RedundancyDetectorTest, DetectsDuplicateConstraints) {
Assembly assy("rd_dup");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({0, 1, ConstraintType::Coincident}); // duplicate
RedundancyDetector detector;
auto suggestions = detector.detect(graph);
EXPECT_GE(suggestions.size(), 1u);
bool found_dup = false;
for (const auto& s : suggestions) {
if (s.reason.find("Duplicate") != std::string::npos)
found_dup = true;
}
EXPECT_TRUE(found_dup);
}
TEST(RedundancyDetectorTest, DetectsOverConstrainedNode) {
Assembly assy("rd_over");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
// Coincident(3) + Concentric(4) + Distance(1) = 8 > 6
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({0, 1, ConstraintType::Concentric});
graph.add_constraint({0, 1, ConstraintType::Distance, 5.0});
RedundancyDetector detector;
auto suggestions = detector.detect(graph);
EXPECT_GE(suggestions.size(), 1u);
}
TEST(RedundancyDetectorTest, DetectsConflictsParallelPerpendicular) {
Assembly assy("rd_conflict");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Parallel});
graph.add_constraint({0, 1, ConstraintType::Perpendicular}); // 冲突!
RedundancyDetector detector;
auto conflicts = detector.detect_conflicts(graph);
EXPECT_GE(conflicts.size(), 1u);
EXPECT_NE(conflicts[0].description.find("Conflict"), std::string::npos);
}
TEST(RedundancyDetectorTest, ReportGeneratesText) {
Assembly assy("rd_report");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({0, 1, ConstraintType::Coincident});
RedundancyDetector detector;
auto report = detector.report(graph);
EXPECT_FALSE(report.empty());
EXPECT_NE(report.find("Redundancy Report"), std::string::npos);
}
TEST(RedundancyDetectorTest, DetectForNodeFiltersCorrectly) {
Assembly assy("rd_filter");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({0, 1, ConstraintType::Coincident});
RedundancyDetector detector;
auto for_node = detector.detect_for_node(graph, 0);
EXPECT_GE(for_node.size(), 1u);
for (const auto& s : for_node) {
EXPECT_EQ(s.node_index, 0);
}
}
// ════════════════════════════════════════════════════════════════
// ConstraintPropagator 测试
// ════════════════════════════════════════════════════════════════
TEST(ConstraintPropagatorTest, PropagateModifiesConstraint) {
Assembly assy("cp_prop");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
auto* c = assy.root.add_part("c", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_node("c", c);
int ci = graph.add_constraint({0, 1, ConstraintType::Distance, 5.0});
graph.add_constraint({1, 2, ConstraintType::Coincident});
ConstraintPropagator propagator;
auto result = propagator.propagate(graph, assy, ci, 10.0,
ConstraintType::Distance, nullptr);
EXPECT_TRUE(result.success);
EXPECT_GE(result.affected_nodes.size(), 2u);
EXPECT_GE(result.changes.size(), 1u);
EXPECT_EQ(graph.constraint(ci).value, 10.0);
}
TEST(ConstraintPropagatorTest, ComputeDependencyOrder) {
Assembly assy("cp_order");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
auto* c = assy.root.add_part("c", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_node("c", c);
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({1, 2, ConstraintType::Coincident});
ConstraintPropagator propagator;
auto order = propagator.compute_dependency_order(graph, 0);
EXPECT_GE(order.size(), 2u);
EXPECT_EQ(order[0], 0); // 起始节点
}
TEST(ConstraintPropagatorTest, DependencyDepth) {
Assembly assy("cp_depth");
auto* a = assy.root.add_part("a", make_box(2, 2, 2));
auto* b = assy.root.add_part("b", make_box(2, 2, 2));
auto* c = assy.root.add_part("c", make_box(2, 2, 2));
ConstraintGraph graph;
graph.add_node("a", a);
graph.add_node("b", b);
graph.add_node("c", c);
graph.add_constraint({0, 1, ConstraintType::Coincident});
graph.add_constraint({1, 2, ConstraintType::Coincident});
ConstraintPropagator propagator;
int depth = propagator.dependency_depth(graph, 0, 2);
EXPECT_EQ(depth, 2); // a→b→c, 2 hops
int same = propagator.dependency_depth(graph, 0, 0);
EXPECT_EQ(same, 0);
// In an unconnected subgraph (no node 3 exists — but negative test)
int unreachable = propagator.dependency_depth(graph, 0, -1);
EXPECT_EQ(unreachable, -1);
}
// ════════════════════════════════════════════════════════════════
// KinematicChainSolver 测试
// ════════════════════════════════════════════════════════════════
TEST(KinematicChainTest, ForwardKinematicsIdentity) {
Assembly assy("kc_fwd");
KinematicChainSolver solver;
std::vector<ChainLink> links;
std::vector<double> angles;
auto poses = solver.forward_kinematics(assy, links, angles);
EXPECT_EQ(poses.size(), 1u); // Just identity
}
TEST(KinematicChainTest, ForwardKinematics2Link) {
Assembly assy("kc_fwd2");
KinematicChainSolver solver;
std::vector<ChainLink> links = {
{0, 1.0, 0.0, 0.0, "link1"},
{1, 1.0, 0.0, 0.0, "link2"}
};
std::vector<double> angles = {0.0, M_PI / 2.0};
auto poses = solver.forward_kinematics(assy, links, angles);
EXPECT_EQ(poses.size(), 3u); // identity + link1 + link2
// Second link should extend in X+ then Y+ direction
EXPECT_GT(poses.back()(0, 3), 0.9);
EXPECT_GT(std::abs(poses.back()(1, 3)), 0.9);
}
TEST(KinematicChainTest, InverseKinematicsReachable) {
Assembly assy("kc_ik");
KinematicChainSolver solver;
std::vector<ChainLink> links = {
{0, 1.0, 0.0, 0.0, "link1"},
{1, 1.0, 0.0, 0.0, "link2"}
};
// Target at (0, 2) — reachable by 2 links of length 1
core::Transform3D target = core::Transform3D::Identity();
target.translation() = core::Vector3D(0.0, 2.0, 0.0);
auto angles = solver.inverse_kinematics(assy, links, target);
EXPECT_EQ(angles.size(), 2u); // Should produce 2 angles
}
TEST(KinematicChainTest, InverseKinematicsUnreachable) {
Assembly assy("kc_ik_unreachable");
KinematicChainSolver solver;
std::vector<ChainLink> links = {
{0, 1.0, 0.0, 0.0, "link1"},
{1, 1.0, 0.0, 0.0, "link2"}
};
// Target at (0, 3) — unreachable (max reach = 2)
core::Transform3D target = core::Transform3D::Identity();
target.translation() = core::Vector3D(0.0, 3.0, 0.0);
auto angles = solver.inverse_kinematics(assy, links, target);
EXPECT_TRUE(angles.empty()); // Unreachable
}
TEST(KinematicChainTest, IsReachableCheck) {
KinematicChainSolver solver;
std::vector<ChainLink> links = {
{0, 1.0, 0.0, 0.0, "l1"},
{1, 0.5, 0.0, 0.0, "l2"}
};
core::Point3D near(1.0, 0.0, 0.0);
EXPECT_TRUE(solver.is_reachable(links, near));
core::Point3D far(10.0, 0.0, 0.0);
EXPECT_FALSE(solver.is_reachable(links, far));
}
TEST(KinematicChainTest, DHTransformIdentity) {
// DH transform with all zero params should give identity
auto T = KinematicChainSolver::dh_transform(0.0, 0.0, 0.0, 0.0);
// Not fully identity because DH includes rotation
// At theta=0, should be I + translation on a=0
core::Transform3D I = core::Transform3D::Identity();
EXPECT_TRUE(T.isApprox(I, 1e-6));
}
// ════════════════════════════════════════════════════════════════
// Drawing Standards 测试
// ════════════════════════════════════════════════════════════════
TEST(DrawingStandardsTest, IsoStandardCreatesValidStyle) {
auto style = IsoStandard::create_style();
EXPECT_EQ(style.projection_angle, ProjectionAngle::FirstAngle);
EXPECT_GT(style.text_height, 0.0);
EXPECT_GT(style.line_width_thick, style.line_width_thin);
EXPECT_EQ(style.text_font, FontStyle::Normal);
}
TEST(DrawingStandardsTest, AnsiStandardCreatesValidStyle) {
auto style = AnsiStandard::create_style();
EXPECT_EQ(style.projection_angle, ProjectionAngle::ThirdAngle);
EXPECT_GT(style.line_width_thick, 0.0);
EXPECT_GT(style.arrow_length, 0.0);
}
TEST(DrawingStandardsTest, JisStandardCreatesValidStyle) {
auto style = JisStandard::create_style();
EXPECT_EQ(style.projection_angle, ProjectionAngle::FirstAngle);
EXPECT_GT(style.text_height, 0.0);
EXPECT_EQ(style.cutting_plane, LineType::Chain); // JIS 特有
}
TEST(DrawingStandardsTest, IsoLineWidthGroup) {
EXPECT_NEAR(IsoStandard::line_width_group(2), 0.25, 1e-9);
EXPECT_NEAR(IsoStandard::line_width_group(3), 0.35, 1e-9);
EXPECT_NEAR(IsoStandard::line_width_group(4), 0.50, 1e-9);
}
TEST(DrawingStandardsTest, IsoLineTypeNames) {
EXPECT_NE(IsoStandard::line_type_iso_name(LineType::Continuous).find("01"), std::string::npos);
EXPECT_NE(IsoStandard::line_type_iso_name(LineType::Dashed).find("02"), std::string::npos);
EXPECT_NE(IsoStandard::line_type_iso_name(LineType::Chain).find("04"), std::string::npos);
}
TEST(DrawingStandardsTest, ApplyStandardByName) {
std::vector<ProjectionView> views;
StandardOptions opts;
opts.paper_size = "A4";
auto ctx = drawing::apply_standard_by_name(views, "ISO", opts);
EXPECT_EQ(ctx.standard_name, "ISO");
EXPECT_EQ(ctx.view_projection, ProjectionAngle::FirstAngle);
auto ctx_ansi = drawing::apply_standard_by_name(views, "ANSI", opts);
EXPECT_EQ(ctx_ansi.standard_name, "ANSI");
EXPECT_EQ(ctx_ansi.view_projection, ProjectionAngle::ThirdAngle);
auto ctx_jis = drawing::apply_standard_by_name(views, "JIS", opts);
EXPECT_EQ(ctx_jis.standard_name, "JIS");
EXPECT_EQ(ctx_jis.view_projection, ProjectionAngle::FirstAngle);
}
TEST(DrawingStandardsTest, ValidateStyleWarnings) {
auto style = IsoStandard::create_style();
auto warns = drawing::validate_style(style, "ISO");
EXPECT_EQ(warns.size(), 0u); // Valid ISO style should have no warnings
// Test ANSI validation
auto warns_ansi = drawing::validate_style(style, "ANSI");
// Should warn about first-angle vs third-angle
EXPECT_GE(warns_ansi.size(), 1u);
}
TEST(DrawingStandardsTest, AvailableStandards) {
auto standards = drawing::available_standards();
EXPECT_GE(standards.size(), 3u);
}
TEST(DrawingStandardsTest, StandardDescriptionsNotEmpty) {
EXPECT_FALSE(IsoStandard::description().empty());
EXPECT_FALSE(AnsiStandard::description().empty());
EXPECT_FALSE(JisStandard::description().empty());
}
TEST(DrawingStandardsTest, AnsiSymbolsAndFrameFormat) {
auto symbols = AnsiStandard::gdt_symbols_summary();
EXPECT_FALSE(symbols.empty());
EXPECT_NE(symbols.find("位置度"), std::string::npos);
auto fcf = AnsiStandard::feature_control_frame_format();
EXPECT_FALSE(fcf.empty());
}
TEST(DrawingStandardsTest, JisPaperSize) {
auto a4 = JisStandard::paper_size_spec("A4");
EXPECT_NE(a4.find("210"), std::string::npos);
EXPECT_NE(a4.find("297"), std::string::npos);
}
TEST(DrawingStandardsTest, JisScales) {
auto scales = JisStandard::preferred_scales();
EXPECT_GE(scales.size(), 5u);
EXPECT_DOUBLE_EQ(scales[0], 1.0);
}
TEST(DrawingStandardsTest, ApplyStandardFunction) {
std::vector<ProjectionView> views;
auto style = IsoStandard::create_style();
StandardOptions opts;
opts.paper_size = "A3";
auto ctx = drawing::apply_standard(views, style, opts);
EXPECT_EQ(ctx.style.projection_angle, ProjectionAngle::FirstAngle);
EXPECT_EQ(ctx.options.paper_size, "A3");
}
TEST(DrawingStandardsTest, LineTypeEnumValues) {
// 验证所有线型枚举都有对应名称
EXPECT_STREQ(line_type_name(LineType::Continuous), "Continuous");
EXPECT_STREQ(line_type_name(LineType::Dashed), "Dashed");
EXPECT_STREQ(line_type_name(LineType::Chain), "Chain");
EXPECT_STREQ(line_type_name(LineType::DoubleChain), "DoubleChain");
EXPECT_STREQ(line_type_name(LineType::Dotted), "Dotted");
}
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@@ -0,0 +1,429 @@
#include <gtest/gtest.h>
#include "vde/brep/brep.h"
#include "vde/brep/modeling.h"
#include "vde/brep/brep_validate.h"
#include "vde/brep/brep_heal.h"
#include "vde/brep/tolerant_modeling.h"
#include "vde/brep/tolerance.h"
#include "vde/brep/ssi_boolean.h"
#include "vde/brep/step_import.h"
#include "vde/curves/nurbs_surface.h"
#include "vde/core/point.h"
using namespace vde::brep;
using namespace vde::core;
using namespace vde::curves;
namespace {
/// Create a simple planar NURBS surface on the XY plane
NurbsSurface make_plane_surface() {
std::vector<std::vector<Point3D>> grid = {
{Point3D(-1, -1, 0), Point3D(-1, 1, 0)},
{Point3D( 1, -1, 0), Point3D( 1, 1, 0)}
};
return NurbsSurface(grid, {0,0,1,1}, {0,0,1,1}, {}, 1, 1);
}
/// Create a simple triangular BrepModel
BrepModel make_triangle(const Point3D& a, const Point3D& b, const Point3D& c) {
BrepModel body;
int v0 = body.add_vertex(a);
int v1 = body.add_vertex(b);
int v2 = body.add_vertex(c);
int e0 = body.add_edge(v0, v1);
int e1 = body.add_edge(v1, v2);
int e2 = body.add_edge(v2, v0);
int loop_id = body.add_loop({e0, e1, e2});
auto surf = make_plane_surface();
int sid = body.add_surface(surf);
int fid = body.add_face(sid, {loop_id});
int shell = body.add_shell({fid}, false);
body.add_body({shell}, "triangle");
return body;
}
/// Create a simple box using modeling API
BrepModel make_test_box() {
return make_box(2.0, 2.0, 2.0);
}
} // namespace
// ═══════════════════════════════════════════════════════════
// 1. TolerantVertex / TolerantEdge 基本构造
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, TolerantVertex_DefaultConstruction) {
TolerantVertex tv;
tv.id = 0;
tv.point = Point3D(1, 2, 3);
tv.tolerance = 1e-5;
EXPECT_EQ(tv.id, 0);
EXPECT_DOUBLE_EQ(tv.point.x(), 1.0);
EXPECT_DOUBLE_EQ(tv.point.y(), 2.0);
EXPECT_DOUBLE_EQ(tv.point.z(), 3.0);
EXPECT_DOUBLE_EQ(tv.tolerance, 1e-5);
EXPECT_EQ(tv.merged_from, 1);
EXPECT_FALSE(tv.is_degenerate);
}
TEST(TolerantModelingTest, TolerantVertex_FromTopo) {
TopoVertex topo;
topo.id = 5;
topo.point = Point3D(10, 20, 30);
topo.tolerance = 1e-7;
TolerantVertex tv = TolerantVertex::from_topo(topo);
EXPECT_EQ(tv.id, 5);
EXPECT_DOUBLE_EQ(tv.point.x(), 10.0);
EXPECT_DOUBLE_EQ(tv.tolerance, 1e-7);
}
TEST(TolerantModelingTest, TolerantEdge_DefaultConstruction) {
TolerantEdge te;
te.id = 3;
te.v_start = 1;
te.v_end = 2;
te.tolerance = 1e-6;
te.is_tangent_contact = true;
EXPECT_EQ(te.id, 3);
EXPECT_EQ(te.v_start, 1);
EXPECT_EQ(te.v_end, 2);
EXPECT_FALSE(te.is_degenerate);
EXPECT_FALSE(te.gap_flag);
EXPECT_TRUE(te.is_tangent_contact);
}
TEST(TolerantModelingTest, TolerantEdge_FromTopo) {
TopoEdge topo;
topo.id = 7;
topo.v_start = 0;
topo.v_end = 1;
TolerantEdge te = TolerantEdge::from_topo(topo);
EXPECT_EQ(te.id, 7);
EXPECT_EQ(te.v_start, 0);
EXPECT_EQ(te.v_end, 1);
}
TEST(TolerantModelingTest, TolerantEdge_CheckDegenerate_True) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1e-8, 1e-8, 0)); // extremely short edge
int e0 = body.add_edge(v0, v1);
TolerantEdge te = TolerantEdge::from_topo(body.edge(e0));
te.tolerance = 1e-6;
EXPECT_TRUE(te.check_degenerate(body));
}
TEST(TolerantModelingTest, TolerantEdge_CheckDegenerate_False) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1, 0, 0));
int e0 = body.add_edge(v0, v1);
TolerantEdge te = TolerantEdge::from_topo(body.edge(e0));
te.tolerance = 1e-6;
EXPECT_FALSE(te.check_degenerate(body));
}
// ═══════════════════════════════════════════════════════════
// 2. build_tolerant_vertices / build_tolerant_edges
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, BuildTolerantVertices) {
BrepModel body;
body.add_vertex(Point3D(0, 0, 0));
body.add_vertex(Point3D(1, 0, 0));
body.add_vertex(Point3D(0, 1, 0));
auto tvs = build_tolerant_vertices(body, 1e-5);
EXPECT_EQ(tvs.size(), 3u);
for (const auto& tv : tvs) {
EXPECT_DOUBLE_EQ(tv.tolerance, 1e-5);
EXPECT_EQ(tv.merged_from, 1);
}
}
TEST(TolerantModelingTest, BuildTolerantEdges) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1, 0, 0));
int v2 = body.add_vertex(Point3D(0, 1, 0));
body.add_edge(v0, v1);
body.add_edge(v1, v2);
body.add_edge(v2, v0);
auto tes = build_tolerant_edges(body);
EXPECT_EQ(tes.size(), 3u);
EXPECT_FALSE(tes[0].is_degenerate); // 1.0 length
}
// ═══════════════════════════════════════════════════════════
// 3. merge_within_tolerance
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, MergeWithinTolerance_NearCoincident) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1, 0, 0));
int v2 = body.add_vertex(Point3D(0, 1, 0));
int v_near = body.add_vertex(Point3D(1e-7, 1e-7, 1e-7));
int e0 = body.add_edge(v0, v1);
int e1 = body.add_edge(v1, v2);
int e2 = body.add_edge(v2, v_near);
int loop_id = body.add_loop({e0, e1, e2});
auto surf = make_plane_surface();
int sid = body.add_surface(surf);
body.add_face(sid, {loop_id});
size_t before = body.num_vertices();
int merged = merge_within_tolerance(body, 1e-5);
EXPECT_GE(merged, 1);
EXPECT_LT(body.num_vertices(), before);
}
TEST(TolerantModelingTest, MergeWithinTolerance_Empty) {
BrepModel body;
EXPECT_EQ(merge_within_tolerance(body), 0);
}
TEST(TolerantModelingTest, MergeWithinTolerance_SingleVertex) {
BrepModel body;
body.add_vertex(Point3D(0, 0, 0));
EXPECT_EQ(merge_within_tolerance(body), 0);
}
// ═══════════════════════════════════════════════════════════
// 4. gap_bridging
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, GapBridging_Empty) {
BrepModel body;
EXPECT_EQ(gap_bridging(body), 0);
}
TEST(TolerantModelingTest, GapBridging_SingleTriangle_NoGaps) {
auto body = make_triangle(Point3D(0,0,0), Point3D(1,0,0), Point3D(0,1,0));
// A closed triangle has no free edges
int bridged = gap_bridging(body, 1e-4);
EXPECT_GE(bridged, 0);
}
// ═══════════════════════════════════════════════════════════
// 5. overlap_resolution
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, OverlapResolution_Empty) {
BrepModel body;
EXPECT_EQ(overlap_resolution(body), 0);
}
TEST(TolerantModelingTest, OverlapResolution_SingleFace) {
auto body = make_triangle(Point3D(0,0,0), Point3D(1,0,0), Point3D(0,1,0));
EXPECT_EQ(overlap_resolution(body), 0);
}
// ═══════════════════════════════════════════════════════════
// 6. tolerant_boolean
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, TolerantBoolean_EmptyBodies) {
BrepModel a, b;
auto diag = tolerant_boolean(a, b, 0); // union
EXPECT_TRUE(diag.success);
EXPECT_EQ(diag.result.num_faces(), 0u);
}
TEST(TolerantModelingTest, TolerantBoolean_UnionOfDisjoint) {
auto box1 = make_box(1, 1, 1);
auto box2 = make_box(1, 1, 1);
auto diag = tolerant_boolean(box1, box2, 0); // union
// May succeed or have failures — check that diagnostic is populated
EXPECT_FALSE(diag.report().empty());
}
TEST(TolerantModelingTest, TolerantBoolean_InvalidOp) {
auto box1 = make_box(1, 1, 1);
auto box2 = make_box(1, 1, 1);
auto diag = tolerant_boolean(box1, box2, 99);
EXPECT_FALSE(diag.success);
EXPECT_FALSE(diag.error_message.empty());
}
// ═══════════════════════════════════════════════════════════
// 7. BooleanDiagnostic
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, BooleanDiagnostic_Default) {
BooleanDiagnostic diag;
EXPECT_FALSE(diag.success);
EXPECT_FALSE(diag.has_failures());
EXPECT_FALSE(diag.report().empty());
}
TEST(TolerantModelingTest, BooleanDiagnostic_HasFailures) {
BooleanDiagnostic diag;
EXPECT_FALSE(diag.has_failures());
FailedFaceInfo ffi;
ffi.face_id = 3;
ffi.reason = "Test failure";
diag.failed_faces.push_back(ffi);
EXPECT_TRUE(diag.has_failures());
}
TEST(TolerantModelingTest, BooleanDiagnostic_FailedFaceInfo) {
FailedFaceInfo ffi;
ffi.face_id = 42;
ffi.reason = "Coplanar degeneracy";
ffi.related_face_id = 17;
ffi.is_coplanar = true;
ffi.suggested_tolerance = 1e-3;
EXPECT_EQ(ffi.face_id, 42);
EXPECT_EQ(ffi.related_face_id, 17);
EXPECT_TRUE(ffi.is_coplanar);
EXPECT_DOUBLE_EQ(ffi.suggested_tolerance, 1e-3);
}
// ═══════════════════════════════════════════════════════════
// 8. detect_coplanar_faces / detect_tangent_contact / detect_degenerate_edge
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, DetectCoplanarFaces_SameBody) {
auto body = make_triangle(Point3D(0,0,0), Point3D(1,0,0), Point3D(0,1,0));
// Single face body → cannot check pair
EXPECT_FALSE(detect_coplanar_faces(body, 0, 0));
}
TEST(TolerantModelingTest, DetectDegenerateEdge_Valid) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1, 0, 0));
int e0 = body.add_edge(v0, v1);
EXPECT_FALSE(detect_degenerate_edge(body, e0));
}
TEST(TolerantModelingTest, DetectDegenerateEdge_Degenerate) {
BrepModel body;
int v0 = body.add_vertex(Point3D(0, 0, 0));
int v1 = body.add_vertex(Point3D(1e-8, 0, 0));
int e0 = body.add_edge(v0, v1);
EXPECT_TRUE(detect_degenerate_edge(body, e0, 1e-5));
}
// ═══════════════════════════════════════════════════════════
// 9. import_heal_pipeline
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, ImportHealPipeline_Empty) {
auto bodies = import_heal_pipeline("");
EXPECT_TRUE(bodies.empty());
}
TEST(TolerantModelingTest, ImportHealPipeline_InvalidStep) {
auto bodies = import_heal_pipeline("garbage data");
EXPECT_TRUE(bodies.empty());
}
TEST(TolerantModelingTest, ImportHealPipeline_ValidStepData) {
// 测试最小合法 STEP 数据
std::string step_data = R"(
ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('Test'),'2;1');
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;
DATA;
#1=CARTESIAN_POINT('',(0.,0.,0.));
#2=CARTESIAN_POINT('',(1.,0.,0.));
#3=CARTESIAN_POINT('',(1.,1.,0.));
#4=CARTESIAN_POINT('',(0.,1.,0.));
ENDSEC;
END-ISO-10303-21;
)";
auto bodies = import_heal_pipeline(step_data);
// 此数据没有完整拓扑结构,预期为空或部分结果
// 主要验证不崩溃
EXPECT_TRUE(bodies.empty() || !bodies.empty());
}
// ═══════════════════════════════════════════════════════════
// 10. STEP import diagnostic
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, StepImportDiagnostic_AfterImport) {
std::string step_data = R"(
ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('Test'),'2;1');
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;
DATA;
#1=CARTESIAN_POINT('',(0.,0.,0.));
ENDSEC;
END-ISO-10303-21;
)";
import_step_from_string(step_data);
auto report = step_import_diagnostic();
// 应至少解析到 1 个实体
EXPECT_GE(report.total_entities, 1);
}
TEST(TolerantModelingTest, StepImportDiagnostic_ReportFormat) {
std::string step_data = R"(
ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('Test'),'2;1');
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;
DATA;
ENDSEC;
END-ISO-10303-21;
)";
import_step_from_string(step_data);
auto report = step_import_diagnostic();
auto str = report.report();
EXPECT_FALSE(str.empty());
EXPECT_TRUE(str.find("STEP Import Diagnostic") != std::string::npos);
}
// ═══════════════════════════════════════════════════════════
// 11. Damaged STEP recovery
// ═══════════════════════════════════════════════════════════
TEST(TolerantModelingTest, StepImport_DamagedEntityRecovery) {
// 包含损坏实体的 STEP 数据:不完整的实体定义
std::string step_data = R"(
ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('Damaged'),'2;1');
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;
DATA;
#10=INCOMPLETE_ENTITY
#1=CARTESIAN_POINT('',(0.,0.,0.));
#2=CARTESIAN_POINT('',(1.,0.,0.));
ENDSEC;
END-ISO-10303-21;
)";
auto bodies = import_step_from_string(step_data);
// 即使有损坏实体,仍应能解析 CARTESIAN_POINT
auto report = step_import_diagnostic();
EXPECT_GE(report.skipped_damaged, 1);
}
+196
View File
@@ -351,3 +351,199 @@ TEST(ClassASurfacingTest, ShapeModification_MultipleConstraints) {
EXPECT_GE(result.iterations, 1);
EXPECT_GT(result.max_displacement, 0.0);
}
// ---------------------------------------------------------------------------
// Test: G3 Blend with Constraints — 带约束 G3 过渡 (新增)
// ---------------------------------------------------------------------------
TEST(ClassASurfacingTest, G3BlendWithConstraints_IdenticalPlanes) {
auto a = plane_surface();
auto b = offset_plane(0.0);
G3ConstraintEdges edges;
edges.g0_edge.edge_a = 3;
edges.g0_edge.edge_b = 2;
edges.g0_edge.blend_width = 0.2;
edges.g1_edge = edges.g0_edge;
edges.g2_edge = edges.g0_edge;
edges.g3_edge = edges.g0_edge;
auto result = g3_blend_with_constraints(a, b, edges);
auto [nu, nv] = result.blend_surface.num_control_points();
EXPECT_GT(nu, 0);
EXPECT_GT(nv, 0);
}
TEST(ClassASurfacingTest, G3BlendWithConstraints_G0G1Check) {
auto a = plane_surface();
auto b = offset_plane(0.0);
G3ConstraintEdges edges;
edges.g0_edge.edge_a = 3;
edges.g0_edge.edge_b = 2;
edges.g0_edge.blend_width = 0.15;
edges.g1_edge = edges.g0_edge;
edges.g2_edge = edges.g0_edge;
edges.g3_edge = edges.g0_edge;
edges.enforce_g0 = true;
edges.enforce_g1 = true;
auto result = g3_blend_with_constraints(a, b, edges);
EXPECT_TRUE(result.g0_ok);
EXPECT_TRUE(result.g1_ok);
}
TEST(ClassASurfacingTest, G3BlendWithConstraints_OnlyG0Enforced) {
auto a = plane_surface();
auto b = offset_plane(0.5);
G3ConstraintEdges edges;
edges.g0_edge.edge_a = 3;
edges.g0_edge.edge_b = 2;
edges.g0_edge.blend_width = 0.3;
edges.g1_edge = edges.g0_edge;
edges.g2_edge = edges.g0_edge;
edges.g3_edge = edges.g0_edge;
edges.enforce_g0 = true;
edges.enforce_g1 = false;
edges.enforce_g2 = false;
edges.enforce_g3 = false;
auto result = g3_blend_with_constraints(a, b, edges);
EXPECT_TRUE(result.g0_ok);
EXPECT_FALSE(result.g1_ok); // G1未强制=检查默认失败
}
// ---------------------------------------------------------------------------
// Test: Surface Energy Minimization — 薄板能量最小化 (新增)
// ---------------------------------------------------------------------------
TEST(ClassASurfacingTest, EnergyMinimization_FlatSurface) {
auto s = plane_surface();
EnergyMinimizationOptions opts;
opts.max_iterations = 20;
opts.tolerance = 1e-4;
auto result = surface_energy_minimization(s, {}, opts);
auto [nu, nv] = result.optimized_surface.num_control_points();
EXPECT_EQ(nu, 2);
EXPECT_EQ(nv, 2);
EXPECT_GE(result.final_bending_energy, 0.0);
}
TEST(ClassASurfacingTest, EnergyMinimization_WithConstraint) {
auto s = quad_surface();
std::vector<ShapeConstraint> constraints;
ShapeConstraint c;
c.target_point = Point3D(1.0, 1.0, 2.0);
c.u = 0.5;
c.v = 0.5;
c.weight = 5.0;
constraints.push_back(c);
EnergyMinimizationOptions opts;
opts.max_iterations = 30;
opts.constraint_weight = 20.0;
auto result = surface_energy_minimization(s, constraints, opts);
EXPECT_GT(result.iterations, 0);
EXPECT_GT(result.max_displacement, 0.0);
}
TEST(ClassASurfacingTest, EnergyMinimization_BendingReduction) {
auto s = quad_surface();
EnergyMinimizationOptions opts;
opts.bending_weight = 5.0;
opts.membrane_weight = 0.01;
opts.max_iterations = 50;
opts.preserve_boundary = false;
auto result = surface_energy_minimization(s, {}, opts);
EXPECT_GE(result.final_bending_energy, 0.0);
EXPECT_GE(result.iterations, 1);
}
// ---------------------------------------------------------------------------
// Test: Curvature Continuity Optimization — 曲率连续性迭代精化 (新增)
// ---------------------------------------------------------------------------
TEST(ClassASurfacingTest, CurvatureContinuity_IdenticalSurfaces) {
auto a = plane_surface();
auto b = plane_surface();
CurvatureContinuityOptions opts;
opts.max_iterations = 10;
opts.boundary_samples = 15;
auto result = curvature_continuity_optimization(a, b, opts);
EXPECT_LT(result.final_g0_error, 1e-3);
EXPECT_LT(result.final_g1_error, 0.01);
}
TEST(ClassASurfacingTest, CurvatureContinuity_QuadSurfaces) {
auto a = quad_surface();
auto b = quad_surface();
CurvatureContinuityOptions opts;
opts.max_iterations = 20;
opts.boundary_samples = 20;
opts.step_size = 0.02;
auto result = curvature_continuity_optimization(a, b, opts);
auto [nu, nv] = result.optimized_b.num_control_points();
EXPECT_EQ(nu, 3);
EXPECT_EQ(nv, 3);
EXPECT_GE(result.iterations, 0);
}
// ---------------------------------------------------------------------------
// Test: Reflection Line Discontinuity — 反射线不连续检测+修复 (新增)
// ---------------------------------------------------------------------------
TEST(ClassASurfacingTest, ReflectionDiscontinuity_PlaneIsSmooth) {
auto s = plane_surface();
ReflectionDiscontinuityParams params;
params.light_direction = Vector3D(1, 0, 0);
params.res_u = 20;
params.res_v = 20;
params.discontinuity_threshold = 0.05;
params.auto_fix = false;
auto result = reflection_line_discontinuity(s, params);
EXPECT_EQ(result.res_u, 20);
EXPECT_EQ(result.res_v, 20);
EXPECT_TRUE(result.is_smooth);
}
TEST(ClassASurfacingTest, ReflectionDiscontinuity_AutoFix) {
auto s = quad_surface();
ReflectionDiscontinuityParams params;
params.light_direction = Vector3D(1, 1, 1);
params.res_u = 15;
params.res_v = 15;
params.discontinuity_threshold = 0.1;
params.max_fix_iterations = 5;
params.fix_strength = 0.05;
params.auto_fix = true;
auto result = reflection_line_discontinuity(s, params);
auto [nu, nv] = result.fixed_surface.num_control_points();
EXPECT_GT(nu, 0);
EXPECT_GT(nv, 0);
EXPECT_GE(result.total_discontinuities, 0);
}
+1
View File
@@ -7,4 +7,5 @@ add_vde_test(test_mesh_lod)
add_vde_test(test_parallel_mc)
add_vde_test(test_reverse_engineering)
add_vde_test(test_fea_mesh)
add_vde_test(test_hex_mesh)
add_vde_test(test_visualization)
+271
View File
@@ -0,0 +1,271 @@
#include <gtest/gtest.h>
#include "vde/mesh/fea_mesh.h"
#include "vde/brep/modeling.h"
#include <cmath>
#include <map>
using namespace vde::mesh;
using namespace vde::brep;
using namespace vde::core;
// ═══════════════════════════════════════════════════════════
// 1. mapped_hex_mesh — 映射法六面体测试
// ═══════════════════════════════════════════════════════════
TEST(MappedHexTest, BoxMappedMesh_NonEmpty) {
auto box = make_box(2.0, 2.0, 2.0);
FaceRegion src;
src.face_indices = {0};
src.name = "bottom";
FaceRegion tgt;
tgt.face_indices = {1};
tgt.name = "top";
auto mesh = mapped_hex_mesh(box, src, tgt, 3);
EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
}
TEST(MappedHexTest, BoxMappedMesh_ValidConnectivity) {
auto box = make_box(1.0, 1.0, 1.0);
FaceRegion src;
src.face_indices = {0};
FaceRegion tgt;
tgt.face_indices = {1};
auto mesh = mapped_hex_mesh(box, src, tgt, 2);
for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
auto& e = mesh.elements[ei];
EXPECT_EQ(e.size(), 8u);
for (int vi : e) {
EXPECT_GE(vi, 0);
EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
}
}
}
TEST(MappedHexTest, BoxMappedMesh_LayerCount) {
auto box = make_box(1.0, 1.0, 1.0);
FaceRegion src;
src.face_indices = {0};
FaceRegion tgt;
tgt.face_indices = {1};
int layers = 4;
auto mesh = mapped_hex_mesh(box, src, tgt, layers);
// 顶点数 = 源面顶点 × (layers + 1)
EXPECT_GT(mesh.num_vertices(), 0u);
}
// ═══════════════════════════════════════════════════════════
// 2. submapped_hex_mesh — 子映射法六面体测试
// ═══════════════════════════════════════════════════════════
TEST(SubmappedHexTest, BoxSubmappedMesh_NonEmpty) {
auto box = make_box(1.0, 1.0, 1.0);
auto mesh = submapped_hex_mesh(box);
EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
EXPECT_GT(mesh.num_vertices(), 0u);
EXPECT_GT(mesh.num_elements(), 0u);
}
TEST(SubmappedHexTest, BoxSubmappedMesh_ValidConnectivity) {
auto box = make_box(2.0, 1.0, 1.0);
auto mesh = submapped_hex_mesh(box);
for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
auto& e = mesh.elements[ei];
EXPECT_EQ(e.size(), 8u);
for (int vi : e) {
EXPECT_GE(vi, 0);
EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
}
}
}
TEST(SubmappedHexTest, SphereSubmappedMesh_NonTrivial) {
auto sphere = make_sphere(1.0);
auto mesh = submapped_hex_mesh(sphere);
EXPECT_GT(mesh.num_vertices(), 0u);
EXPECT_GT(mesh.num_elements(), 0u);
}
// ═══════════════════════════════════════════════════════════
// 3. multi_block_hex_mesh — 多块结构化六面体测试
// ═══════════════════════════════════════════════════════════
TEST(MultiBlockHexTest, EmptyBlocks_FallbackGrid) {
auto box = make_box(2.0, 2.0, 2.0);
// blocks为空时回退到4×4×4均匀栅格
std::vector<BlockRegion> blocks;
auto mesh = multi_block_hex_mesh(box, blocks);
EXPECT_EQ(mesh.element_type, FEAElementType::Hex8);
EXPECT_GT(mesh.num_vertices(), 0u);
EXPECT_GT(mesh.num_elements(), 0u);
// 4×4×4 grid → 4^3=64 elements
EXPECT_GE(mesh.num_elements(), 64u);
}
TEST(MultiBlockHexTest, SingleBlock_TFILinear) {
auto box = make_box(1.0, 1.0, 1.0);
BlockRegion block;
block.corner_vertices = {
Point3D(0,0,0), Point3D(1,0,0), Point3D(1,1,0), Point3D(0,1,0),
Point3D(0,0,1), Point3D(1,0,1), Point3D(1,1,1), Point3D(0,1,1)
};
block.n_i = 2;
block.n_j = 2;
block.n_k = 2;
std::vector<BlockRegion> blocks = {block};
auto mesh = multi_block_hex_mesh(box, blocks);
EXPECT_GT(mesh.num_vertices(), 0u);
EXPECT_GT(mesh.num_elements(), 0u);
}
TEST(MultiBlockHexTest, MultiBlocks_ValidConnectivity) {
auto box = make_box(2.0, 2.0, 2.0);
BlockRegion b1;
b1.corner_vertices = {
Point3D(0,0,0), Point3D(1,0,0), Point3D(1,1,0), Point3D(0,1,0),
Point3D(0,0,1), Point3D(1,0,1), Point3D(1,1,1), Point3D(0,1,1)
};
b1.n_i = 2; b1.n_j = 2; b1.n_k = 2;
BlockRegion b2;
b2.corner_vertices = {
Point3D(1,0,0), Point3D(2,0,0), Point3D(2,1,0), Point3D(1,1,0),
Point3D(1,0,1), Point3D(2,0,1), Point3D(2,1,1), Point3D(1,1,1)
};
b2.n_i = 2; b2.n_j = 2; b2.n_k = 2;
std::vector<BlockRegion> blocks = {b1, b2};
auto mesh = multi_block_hex_mesh(box, blocks);
for (size_t ei = 0; ei < mesh.num_elements(); ++ei) {
auto& e = mesh.elements[ei];
EXPECT_EQ(e.size(), 8u);
for (int vi : e) {
EXPECT_GE(vi, 0);
EXPECT_LT(static_cast<size_t>(vi), mesh.num_vertices());
}
}
}
// ═══════════════════════════════════════════════════════════
// 4. hex_quality_optimization — 六面体质量优化 + untangling
// ═══════════════════════════════════════════════════════════
TEST(HexQualityOptTest, UnitCube_QualityOptimization) {
// 创建单位立方体六面体网格
FEAMesh mesh;
mesh.element_type = FEAElementType::Hex8;
mesh.vertices = {
{0,0,0}, {1,0,0}, {1,1,0}, {0,1,0},
{0,0,1}, {1,0,1}, {1,1,1}, {0,1,1}
};
mesh.elements.push_back({0,1,2,3,4,5,6,7});
mesh.material_ids.push_back(0);
HexOptimizationParams params;
params.untangle = true;
params.laplacian_smooth = true;
params.max_iterations = 5;
auto result = hex_quality_optimization(mesh, params);
EXPECT_GT(result.initial_quality.total_elements, 0u);
EXPECT_GE(result.final_quality.avg_jacobian, 0.0);
}
TEST(HexQualityOptTest, QualityReport_AfterOptimization) {
auto box = make_box(2.0, 2.0, 2.0);
// 生成结构化六面体网格
std::vector<BlockRegion> blocks;
auto mesh = multi_block_hex_mesh(box, blocks);
auto initial = fea_quality_report(mesh);
EXPECT_GT(initial.total_elements, 0u);
HexOptimizationParams params;
params.laplacian_smooth = true;
params.max_iterations = 10;
auto result = hex_quality_optimization(mesh, params);
EXPECT_EQ(result.final_quality.total_elements, initial.total_elements);
EXPECT_GE(result.final_quality.avg_jacobian, 0.0);
EXPECT_LE(result.final_quality.avg_jacobian, 1.0);
}
TEST(HexQualityOptTest, Untangle_Inverted) {
// 创建一个轻微扭曲的六面体
FEAMesh mesh;
mesh.element_type = FEAElementType::Hex8;
mesh.vertices = {
{0,0,0}, {1,0,0}, {1,1,0}, {0,1,0},
{0,0,1}, {1,0,1}, {0.3,0.3,1}, {0,1,1} // 顶点6向内扭曲
};
mesh.elements.push_back({0,1,2,3,4,5,6,7});
mesh.material_ids.push_back(0);
HexOptimizationParams params;
params.untangle = true;
params.laplacian_smooth = true;
params.optimization_based_smooth = false;
params.max_iterations = 10;
auto result = hex_quality_optimization(mesh, params);
EXPECT_GT(result.final_quality.avg_jacobian, 0.0);
}
// ═══════════════════════════════════════════════════════════
// 5. 综合集成测试
// ═══════════════════════════════════════════════════════════
TEST(HexIntegrationTest, MappedThenOptimize) {
auto box = make_box(2.0, 2.0, 2.0);
FaceRegion src;
src.face_indices = {0};
FaceRegion tgt;
tgt.face_indices = {1};
auto mesh = mapped_hex_mesh(box, src, tgt, 3);
if (mesh.num_elements() == 0) {
GTEST_SKIP() << "mapped_hex_mesh returned empty (no quad faces available)";
}
HexOptimizationParams params;
params.max_iterations = 5;
auto result = hex_quality_optimization(mesh, params);
EXPECT_EQ(result.final_quality.total_elements, mesh.num_elements());
}
TEST(HexIntegrationTest, SubmappedThenOptimize) {
auto box = make_box(1.0, 1.0, 1.0);
auto mesh = submapped_hex_mesh(box);
HexOptimizationParams params;
params.laplacian_smooth = true;
params.max_iterations = 5;
auto result = hex_quality_optimization(mesh, params);
EXPECT_EQ(result.final_quality.total_elements, mesh.num_elements());
}