62ba6da19c
fix(v4.2): shared topology for make_box + precise tolerance system
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- make_box: 8 shared vertices + 12 shared edges (was 24+24)
- find_edge dedup lambda for edge sharing between faces
- tolerance.h: fuzzy_equal/zero/vec/point/parallel/perpendicular
- adaptive_tolerance + model_tolerance
- 14 tolerance tests
2026-07-25 04:15:36 +00:00
d9b0c6af77
feat(v4.2): shared topology + precise tolerance system
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- make_box: shared 8 vertices + edge dedup (was 24 vertices, now 8)
- ToleranceConfig: per-operation tolerances, global config
- fuzzy_equal/zero/gt/lt/gte/lte with absolute+relative tolerance
- fuzzy vector/point/parallel/perpendicular helpers
- adaptive_tolerance: scales with model size
- 14 tolerance tests
2026-07-25 04:07:24 +00:00
2e004fda6d
feat(v4.1): incremental update + large assembly + format robustness
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- IncrementalUpdateEngine: dirty propagation, topological rebuild, cache hit/miss
- InstanceCache: shared LOD mesh for identical parts
- LargeAssemblyManager: BVH spatial index, view frustum culling, assembly stats
- format_io: auto-detect STEP/IGES, batch import with error recovery
- 31 tests: incremental (11), large assembly (12), format IO (8)
2026-07-25 03:51:57 +00:00
6a98e8cd9c
feat(v4.0): GD&T geometric tolerancing — ASME Y14.5
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- 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
2026-07-25 03:25:06 +00:00
a2b34733bf
feat(v4.0): explode view — assembly part decomposition
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- explode_view() with auto/manual direction + factor control
- un_explode() for restoring original transforms
- compute_explode_displacement() for per-part displacement
- 12 tests: single part, chain, factor scaling, un-explode, subassembly
2026-07-25 03:19:35 +00:00
de86f6004c
feat(v4.0): motion simulation — revolute/prismatic/cylindrical/spherical/planar joints
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- MotionJoint with type, anchor, axis, limits
- MotionSimulation: step/run with driver functions
- Constant speed and custom driver support
- Collision detection integration during simulation
- 13 tests: all joint types, limits, reset, multi-joint chains
2026-07-25 02:31:51 +00:00
0fe2ad40d2
feat(v4.0): assembly interference checking — GJK + AABB broad-phase
2026-07-25 02:25:55 +00:00
9b89fc179f
feat: N-side filling + G3 continuity
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2026-07-24 16:16:18 +00:00
e02c5980b4
feat: LOD mesh generation + incremental BVH
2026-07-24 16:14:09 +00:00
5a2f01f597
feat: 3D constraint solver for assembly (coincident/concentric/distance)
2026-07-24 16:12:36 +00:00
b96b6defd6
feat(v3.9): parallel OpenMP boolean + assembly instancing + update notifier
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2026-07-24 15:36:42 +00:00
033538013e
fix: remove view_direction field refs from brep_drawing.cpp
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2026-07-24 15:25:11 +00:00
d2c628215d
feat(v3.8): 2D projection views + section + DXF + dimensions + G2 curvature
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2026-07-24 15:23:30 +00:00
6779b45f27
feat(v3.8): G2 curvature + continuity implementation
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- surface_curvature: mean (H) and Gaussian (K) curvature via
first/second fundamental forms with analytic first derivatives
and finite-difference second derivatives
- is_g2_continuous: G0/G1/G2 continuity check along shared boundary
with proper parameter range extraction and reverse-parameter
matching on opposite edges
- extend_surface: tangent-aligned surface extension along any edge
(umin/umax/vmin/vmax) with knot vector propagation
2026-07-24 15:21:36 +00:00
50d835e495
feat(v3.8): G2 continuity + surface extension + curvature (header only)
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2026-07-24 15:19:01 +00:00
e573cf958f
docs: v3.8 engineering drawing + G2 continuity plan
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2026-07-24 15:15:53 +00:00
00ea90b522
fix: add default constructors to NurbsCurve and NurbsSurface
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2026-07-24 14:26:47 +00:00
ebce6abdd6
feat(v3.6): TrimmedSurface — B-Rep fundamental primitive
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2026-07-24 14:25:51 +00:00
e1f7f0b070
fix: add missing <optional> include in assembly.h
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2026-07-24 14:05:07 +00:00
12db7d3e5a
feat(v3.5): perf caching + measure + flange/gear + feature tree + assembly constraints
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2026-07-24 14:02:24 +00:00
6468f6e911
fix: Point2D already in scope via point.h
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2026-07-24 13:24:17 +00:00
6caed82319
fix: Point2D already defined in point.h
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2026-07-24 13:23:45 +00:00
00a71c4573
feat(v3.4): CAM toolpath — contour + pocket + G-code
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2026-07-24 13:23:02 +00:00
324066a27c
fix: properly restore and fix surface_intersection.h
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2026-07-24 13:15:15 +00:00
d6039bc686
fix: /* */ inside doxygen block prematurely closes comment
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2026-07-24 13:14:34 +00:00
314543f7a5
tmp: comment out plane intersect to test build
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2026-07-24 13:13:55 +00:00
135b977865
fix: remove optional<NurbsCurve> field (no default ctor)
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2026-07-24 13:11:32 +00:00
4a32633482
feat(v3.3): NURBS surface-surface intersection
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Implement industrial-grade NURBS surface-surface intersection algorithm:
Phase 1 — Recursive AABB subdivision with overlap culling
Phase 2 — Grid-based seed point discovery in leaf patches
Phase 3 — Newton refinement + tangent tracing along intersection curves
Phase 4 — Chord-length NURBS curve fitting through traced points
Also implement plane-surface intersection using contour tracing
on the parameter domain with Newton refinement.
New files:
- include/vde/curves/surface_intersection.h (IntersectionCurve struct, APIs)
- src/curves/surface_intersection.cpp (full algorithm implementation)
- tests/curves/test_surface_intersection.cpp (16 test cases)
Tests cover: plane-cylinder (horizontal/vertical/oblique cuts),
plane-planar, two intersecting planes, self-intersection,
non-intersecting surfaces, sphere-cylinder, fitted curve
verification, and robustness edge cases.
2026-07-24 13:07:45 +00:00
107cf58034
feat(v3.3): B-Rep face splitting + fuzz testing (all 3 tasks)
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2026-07-24 12:48:42 +00:00
efb15ea8f2
feat(v3.2): assembly tree + benchmark report + CI/Python/3MF
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2026-07-24 11:50:00 +00:00
a8052c5aae
feat(v3.2): 3MF format import/export
2026-07-24 11:30:36 +00:00
089442fb69
fix: more /* */ inside doxygen blocks in octree/boolean_mesh
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2026-07-24 11:17:46 +00:00
980cb32468
fix: remove remaining /* ... */ inside doxygen blocks
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2026-07-24 11:14:27 +00:00
fba37f7065
fix: replace /* ... */ with // ... in doxygen code blocks to prevent premature comment termination
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2026-07-24 11:12:49 +00:00
ac4c4300ed
docs: doxygen annotations for sdf + brep + capi
2026-07-24 11:09:45 +00:00
4c9ee4f760
docs: doxygen annotations for curves + mesh + sketch
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2026-07-24 11:04:04 +00:00
b97b0415f5
docs: doxygen annotations for spatial + boolean + collision
2026-07-24 11:02:06 +00:00
10847e61ad
docs: Doxyfile + mainpage for API reference
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2026-07-24 10:59:03 +00:00
bfe2ecbe95
fix: shell vertex ID→map lookup, fix SEGFAULT
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2026-07-24 10:11:59 +00:00
40440fcc3e
feat: GLTF/GLB export with normals + B-Rep tessellation + pipeline example
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2026-07-24 09:06:12 +00:00
3064572072
fix: onion thickness — reapply correct formula
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2026-07-24 08:52:36 +00:00
2772c25aef
fix: onion test expectations to standard abs(d)-thickness
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2026-07-24 08:50:55 +00:00
4660b186a1
fix: onion thickness, repeat boundary tie
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2026-07-24 08:49:24 +00:00
a323776fd3
fix: SDF nan/edge cases + B-Rep vertex index → ID fix + IGES 1-based DE + STEP cleanup
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2026-07-24 08:42:53 +00:00
9ecd86fb09
fix: format_utils normalize function sigs, iges_import class closing brace
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2026-07-24 07:41:30 +00:00
a989f799fb
fix: format_utils rename fmt→format_fn, iges_import insert_or_assign
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2026-07-24 07:39:25 +00:00
6cfd186780
feat(brep): S13-A — IGES import support
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Implement IGES (Initial Graphics Exchange Specification) file reader that
converts IGES entities to B-Rep models.
Key features:
- 80-character fixed-width card image parser (S/G/D/P/T sections)
- Directory Entry parsing with all 18 DE fields per entity
- Parameter Data parsing with DE pointer tracking
- D exponent notation support (e.g., 1.5D+2 = 150)
Supported IGES entity types:
Curve entities (→ NurbsCurve):
Type 100 - Circular Arc (rational degree-2)
Type 102 - Composite Curve
Type 104 - Conic Arc (ellipse/hyperbola/parabola)
Type 106 - Copious Data (polyline)
Type 110 - Line (degree-1)
Type 126 - Rational B-Spline Curve
Surface entities (→ NurbsSurface):
Type 108 - Plane
Type 114 - Parametric Spline Surface
Type 118 - Ruled Surface
Type 120 - Surface of Revolution
Type 122 - Tabulated Cylinder (extrude)
Type 128 - Rational B-Spline Surface
Type 140 - Offset Surface
Type 192 - Right Circular Cylindrical Surface
Type 194 - Right Circular Conical Surface
Type 196 - Spherical Surface
Type 198 - Toroidal Surface
Topology entities (→ BrepModel):
Type 186 - Manifold Solid B-Rep Object
Type 502 - Vertex
Type 504 - Edge
Type 508 - Loop
Type 510 - Face
Type 514 - Shell
Tests cover: line, arc, cylinder, sphere, cone, torus, plane,
B-spline curve/surface, ruled surface, revolution surface,
tabulated cylinder, copious data polyline, manifold solid B-Rep,
D exponent notation, empty/truncated file handling, and file errors.
2026-07-24 07:37:03 +00:00
4f75bb8b07
feat(brep): S13-B IGES export + format utilities
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Add IGES v5.3 export for B-Rep models with:
- Entity mapping: Point(116), Line(110), Circular Arc(100),
B-Spline Curve(126), Plane(108), B-Spline Surface(128),
Vertex(502), Edge(504), Loop(508), Face(510), Shell(514),
Manifold Solid B-Rep(186)
- Auto-detection of circular arcs (degree-2 NURBS with
isosceles control triangle) and planes (1x1 degree surfaces)
- Fixed 80-column IGES format with S/G/D/P/T sections
- Header-only format_utils.h for IGES/STEP number formatting
New files:
- include/vde/foundation/format_utils.h
- include/vde/brep/iges_export.h
- src/brep/iges_export.cpp
- tests/brep/test_iges_export.cpp
2026-07-24 07:34:27 +00:00
b175db0342
feat(sdf): S12 — 可微分几何完整模块
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S12-A: 自动微分引擎
- sdf_gradient.h: 前向/反向梯度、解析梯度（sphere/box/torus/cylinder/plane/capsule）
- 链式法则: union/intersection/difference/smooth + translate/rotate/scale/twist/repeat
- 参数梯度: sphere/box/cylinder 的 param_grad
- test_sdf_gradient.cpp: 604 行测试
S12-B: 梯度驱动优化 + 应用
- sdf_optimize.h: 形状拟合/碰撞避免/可达性/对称检测/体积计算
- sdf_optimize.cpp: 682 行实现（数值梯度 + GradientDescent）
- test_sdf_optimize.cpp: 342 行，20 项测试
S12-C: PyTorch 集成 + Python
- sdf_torch.h/cpp: 批量 SDF 求值 + 梯度
- python/vde/sdf.py: 高级 Python API
- python/vde/torch_sdf.py: torch.autograd.Function
- test_sdf_torch_bridge.cpp: C++ 桥梁测试
2026-07-24 07:23:28 +00:00
08b5854c56
feat(sdf): S12-C PyTorch integration + Python bindings
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Add batch evaluation/gradient functions for SDF trees (sdf_torch.h/cpp).
Add sdf_gradient.h with finite-difference gradient utilities.
Add Python modules vde.sdf (high-level SDF API) and vde.torch_sdf (PyTorch autograd).
Add test_sdf_torch_bridge.cpp with batch eval/gradient tests.
Integrate into vde_sdf library and test suite.
2026-07-24 07:20:45 +00:00
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