DOI

Available on Food4Rhino.

DigitalCircularityToolkit

A Grasshopper plugin to facilitate circular/reuse/inventory-driven design workflows, including:

  • Extracting principal axes from arbitrary geometry
  • Abstracing objects as primitive lines, planes, boxes, and spheres
  • Knolling and alignment
  • Shape characterization: LineScore, PlaneScore, BoxScore, SphereScore, RadialSignature
  • Fourier shape descriptors (in complex and real coordinates) of radial signatures
  • Custom feature vector definitions
  • Optimal assignment using the Hungarian matching algorithm
  • Visualization tools for assignment

This toolkit provides a generalized approach to the Digital Circularity workflow outlined by Cousin et al.

Installation

The initial public build was compiled February 25, 2024 in preparation for registration in the Food4Rhino ecosystem. It has been tested for Rhino 7/8 for both Windows and Mac.

  1. Find and download the latest build (.zip file) in the releases page.
  2. Find your Grasshopper components folder by opening Grasshopper, then File>Special Folders>Components Folder
  3. For Windows users: right click the downloaded .zip file and select Properties, and make sure that Unblock is checked.
  4. Directly extract the contents of the .zip file to your Components Folder.
  5. Restart Rhino/Grasshopper

A set of example files have been provided (to be updated).

Citing

When using or extending this software for research purposes, please cite using the following:

Bibtex

@software{lee_2024_10724610,
  author       = {Lee, Keith Janghyun},
  title        = {DigitalCircularityToolkit},
  month        = feb,
  year         = 2024,
  publisher    = {Zenodo},
  version      = {v0.2},
  doi          = {10.5281/zenodo.10724610},
  url          = {https://doi.org/10.5281/zenodo.10724610}
}

Other styles

Or find a pre-written citation in the style of your choice here (see the Citation box on the right side). E.g., for APA:

Lee, K. J. (2024). DigitalCircularityToolkit (v0.2). Zenodo. https://doi.org/10.5281/zenodo.10724610

Examples

Matching lengths to truss design

See Examples>01_trusses>01_trusses

Features used:

  • LinearObject class
  • Adding qty for duplications of objects
  • Creating FeatureVectors
  • EuclideanDistance for distance matrix generation
  • Hungarian for matching
  • AlignToObject for aligning matched inventory objects to drawn design
  • MatchLines to draw matching lines

Incorporating structural analysis to truss matching

See Examples>01b_trusses>01b_trusses_karamba

Features used:

  • LinearObject class
  • Adding qty for duplications of objects
  • Integrating with Karamba3d and other plugins
  • Creating custom FeatureVectors to have multiple dimensions
  • EuclideanDistance for distance matrix generation
  • Hungarian for matching
  • AlignToObject for aligning matched inventory objects to drawn design
  • MatchLines to draw matching lines

Beading curves with rocks

See Examples>02_rock_beading>02a_linear_beading and 02b_box_beading

Features used:

  • LinearObject and BoxObject
  • OverridePCA to set a custom orientation for objects

Tiling rocks into a Voronoi plane

See Examples>03_rock_tiling>03_rock_tiling

Features used:

  • PlanarObject to abstract objects as planes
  • PlanarOutline to get the 2D curve representation of an object
  • RadialSignature to perform ray sampling of the planar outlines
  • HarmonicsAnalysisComplex to extract feature vectors from complex radial signatures

Development Notes

  • This plugin was developed by Keith J. Lee, PhD Candidate (Associaton: MIT > Architecture > Building Technology > Digital Structures > Digital Circularity).
  • Karl-Johan Soerensen developed I/O functionality for read/write workflows with Google Sheets and local .CSV files. To be released publicly in the near future.
  • Initial release was given to students taking the IAP2024 design workshop: 4.181 Digital Circularity: Tooling up for reuse with Odds & Mods
  • Public release coincides with the S2024 design workshop: 4.185 ODDS & MODS Castaways
  • The Digital Circularity team consists of Rachel Blowes (SMArchS BT '25), Celia Chaussabel (SMArchS AD '25), Alex Htet Kyaw (SMArchS Comp '25), Keith J. Lee (PhD BT '25), and Karl-Johan Soerensen (SMArchS Comp '25 + SM CEE '25). We are advised by Professor Caitlin Mueller.

Release Notes

Feb 28 2024

  • v0.2 was released to enable Zenodo DOI and add minor description changes in some components. No functional changes.