Planar panels and planar supporting beams in architectural structures

Cheng Wang, Caigui Jiang, Xavier Tellier, Johannes Wallner, Helmut Pottmann

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
1 Downloads (Pure)


In this article, we investigate geometric properties and modeling capabilities of quad meshes with planar faces whose mesh polylines enjoy the additional property of being contained in a single plane. This planarity is a major benefit in architectural design and building construction: If a structural element is contained in a plane, it can be manufactured on the ground without scaffolding and put into place as a whole. Further, the plane it is contained in serves as part of a so-called support structure. We discuss design of meshes under the requirement that one half of mesh polylines are planar (“P meshes”), and we also investigate the geometry and design of meshes where all polylines enjoy this property (“PP meshes”). We work in the space of planes and with appropriate transformations of that space. We also incorporate further properties relevant for architectural design, such as near-rectangular panels and repetitive nodes. We provide geometric insights, give explicit constructions, and show an approach to geometric modeling of both P meshes and PP meshes, in particular, the case of nearly rectangular panels.
Original languageEnglish
Article number19
JournalACM Transactions on Graphics
Issue number2
Early online date3 Sep 2022
Publication statusPublished - 22 Nov 2022


  • Laguerre geometry
  • Quad mesh
  • architectural geometry
  • discrete differential geometry
  • planar beams
  • support structure

Cite this