ARCADE dataset

.gitattributes

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README.md

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+---
+license: cc-by-4.0
+pretty_name: ARCADE
+tags: [cad, cadquery, b-rep, step, point-cloud, mesh, code-generation]
+configs:
+- config_name: code
+  data_files:
+  - split: train
+    path: code/train-*.parquet
+  - split: validation
+    path: code/validation-*.parquet
+  default: true
+- config_name: geometry
+  data_files:
+  - split: train
+    path: geometry/train-*.parquet
+  - split: validation
+    path: geometry/validation-*.parquet
+---
+# ARCADE
+
+CadQuery programs with their geometry, released with **StepCAD: Mesh-to-CAD Code Generation via LLM Policy and
+Geometry-Guided Search** ([paper](https://arxiv.org/pdf/2610.03799), [code](https://github.com/ghadinehme/stepcad-v1),
+[model](https://huggingface.co/DeCoDELab/StepCAD)).
+
+**3,543,874 programs** (3,527,534 train, 16,340 validation) and **34,813,149 intermediate CAD states** (one per
+`result = ...` operation), each with STEP, mesh and 10K-point cloud. Every program is in a canonical step-by-step
+CadQuery format, re-executes to a valid single solid, and is unique (deduplicated by canonical program).
+
+![statistics](arcade_stats.png)
+
+| | ARCADE |
+|---|---|
+| programs | 3,543,874 |
+| operations per program | 108.3 (68) |
+| max operations | 6,115 |
+| workplanes | 10.4 (9) |
+| sketch primitives | 78.6 (38) |
+| solid operations | 10.5 (9) |
+| Booleans | 8.9 (7) |
+| B-rep faces | 91.3 (63) |
+| intermediate states | 34,813,149 |
+| coverage: extrude | 94.7% |
+| coverage: revolve | 28.3% |
+| coverage: sweep | 18.6% |
+| coverage: loft | 13.8% |
+| coverage: fillet | 34.2% |
+| coverage: chamfer | 25.6% |
+| coverage: shell | 5.5% |
+| coverage: mirror | 21.1% |
+
+An operation is a modelling action: a workplane, a sketch primitive (line, arc, circle, rectangle, spline, ...), a
+solid operation (extrude, revolve, sweep, loft, fillet, chamfer, shell, mirror) or a Boolean (union, cut,
+intersect); selectors, `moveTo`, `close` etc. are not counted. Faces are B-rep faces of the final solid read back
+from its STEP file. Coverage is the % of programs with at least one instance. Values are mean (median).
+All numbers are in `release_metrics.json`.
+
+## Layout
+
+`code/` (default config, about 2 GB): one row per program.
+
+| column | |
+|---|---|
+| `id` | `train_<16 hex>`, hash of the canonical program |
+| `code` | CadQuery program |
+| `num_ops` | number of `result = ...` operations |
+| `face_count`, `volume` | B-rep faces and volume of the final solid |
+
+`geometry/` (about 3.4 TB): one row per program, joined to `code/` on `id`. Files are named after their code shard
+and first row.
+
+| column | |
+|---|---|
+| `step` | final solid as a STEP file (bytes) |
+| `step_faces`, `volume` | faces as read back from the STEP, volume |
+| `mesh_vertices`, `mesh_faces` | triangle mesh: float32 (V, 3) and uint32 (F, 3), row-major bytes |
+| `points`, `normals` | 10K surface points with normals of the final solid: float16 (10000, 3) bytes |
+| `state_points`, `state_normals` | the same after every operation (list, one entry per state) |
+| `state_faces` | B-rep face count after every operation |
+
+```python
+import numpy as np
+from datasets import load_dataset
+code = load_dataset("DeCoDELab/ARCADE", "code", split="train")
+geom = load_dataset("DeCoDELab/ARCADE", "geometry", split="train", streaming=True)
+r = next(iter(geom))
+pts = np.frombuffer(r["points"], np.float16).reshape(-1, 3)
+```
+
+## License
+
+CC-BY-4.0.

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