ARCADE / README.md
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ARCADE dataset
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metadata
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, code, model).

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
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
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.