HistCAD: Geometrically Constrained Parametric History-based CAD Dataset

• URL: http://arxiv.org/abs/2602.19171v1
• Date: Mon, 08 Dec 2025 05:52:14 GMT
• Title: HistCAD: Geometrically Constrained Parametric History-based CAD Dataset
• Abstract summary: HistCAD is a large-scale dataset featuring constraint-aware modeling sequences.<n>HistCAD provides a unified benchmark for advancing editable, constraint-aware, and semantically enriched generative CAD modeling.
• Score: 7.7008607520955
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Parametric computer-aided design (CAD) modeling is fundamental to industrial design, but existing datasets often lack explicit geometric constraints and fine-grained functional semantics, limiting editable, constraint-compliant generation. We present HistCAD, a large-scale dataset featuring constraint-aware modeling sequences that compactly represent procedural operations while ensuring compatibility with native CAD software, encompassing five aligned modalities: modeling sequences, multi-view renderings, STEP-format B-reps, native parametric files, and textual annotations. We develop AM\(_\text{HistCAD}\), an annotation module that extracts geometric and spatial features from modeling sequences and uses a large language model to generate complementary annotations of the modeling process, geometric structure, and functional type. Extensive evaluations demonstrate that HistCAD's explicit constraints, flattened sequence format, and multi-type annotations improve robustness, parametric editability, and accuracy in text-driven CAD generation, while industrial parts included in HistCAD further support complex real-world design scenarios. HistCAD thus provides a unified benchmark for advancing editable, constraint-aware, and semantically enriched generative CAD modeling.

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