pjdixit / onshape-cad-parser

OnShape-CAD-Parser

A simple parser to collect CAD construction data from OnShape. It's part of our project DeepCAD: A Deep Generative Network for Computer-Aided Design Models, ICCV 2021.

It's built on Onshape-public/apikey. Python 2 (2.7.9+) is required.

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Dependencies

• Clone this repo

  $ git clone https://github.com/ChrisWu1997/onshape-cad-parser.git
  $ cd onshape-public-apikey
  $ git submodule init
  $ git submodule update

• Install dependencies

  $ pip install -r requirements.txt

• Follow this instruction to create a creds.json file in the root project folder, filled with your Onshape developer keys:

  {
      "https://cad.onshape.com": {
          "access_key": "ACCESS KEY",
          "secret_key": "SECRET KEY"
      }
  }

Usage

• Run on some test examples:

  $ python process.py --test # some test examples

  Results are saved as JSON files following the style of Fusion360 Gallery dataset.

• ABC dataset provides a large collection of Onshape CAD designs with web links here. To process the downloaded links in parallel, run

  $ python process.py --link_data_dir {path of the downloaded data}

  We collect data for our DeepCAD paper in this way.

Note

This parser has some limitations, mainly

• CAD Operations other than sketch and extrude are not supported now.
• Sketch constraints are not recorded even though Onshape data provide them.

In the future, we may update it with more flexibilities. And anyone interested are welcomed to further expand this parser for your own purpose.

Cite

Please consider citing our work if you find it useful:

@misc{wu2021deepcad,
      title={DeepCAD: A Deep Generative Network for Computer-Aided Design Models}, 
      author={Rundi Wu and Chang Xiao and Changxi Zheng},
      year={2021},
      eprint={2105.09492},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}