metadata
tags:
- hexgen
- cad
- mesh-generation
hexgen — abc_v1 training data
Training pairs for a decoder that reads a CAD solid and emits a program which
compiles to a hexahedral finite-element mesh. Exported from the hexgen-corpora
Modal Volume by modal_app/share_corpus_fn.py.
| path | contents | size |
|---|---|---|
hexgen_abc_v1/pairs.jsonl |
133,238 (part, program) training records, one JSON object per line | 2,335 MB |
hexgen_abc_v1/holdout_graphs.tar.gz |
10,179 .brepgraph.json — held-out CAD parts, never trained on |
188 MB raw |
hexgen_abc_v1/holdout_tess.tar.gz |
10,179 .tess.json — the same parts triangulated, matched by filename |
186 MB raw |
hexgen_abc_v1/export_summary.json |
export provenance | 838 B |
A .brepgraph.json describes one CAD solid: faces with surface type and
parameters, edges with curves, vertices with positions, and the loops tying them
together. A .tess.json is that solid as triangles; the mesh-vs-CAD tools take
the two as a pair.
uvx hf download hexproj-collab/hexgen-share --repo-type dataset --local-dir ./hexgen-data
cd hexgen-data/hexgen_abc_v1
mkdir -p holdout_graphs holdout_tess
tar xzf holdout_graphs.tar.gz -C holdout_graphs
tar xzf holdout_tess.tar.gz -C holdout_tess
Do not regenerate the .tess.json files. They were produced by the CAD kernel
on x86 and are frozen; tessellation is not reproducible across architectures, so
rebuilding them on ARM silently changes every downstream score.