The gh definition presented here has been used for the design of a shell structure build from sheet material at Les Grandes Ateliers, Lyon, by architecture students of Ecole nationale supérieure d'architecture de montpellier and the TU Delft.
The pq design tool ensured the planarity of the quadrilateral faces, that allowed the fabrication of the shell from flat sheet material.
This great piece of work is based on Kangaroo, a physics engine for grasshopper.The original video and a lot of more great stuff can be found on Danie Pikerl's vimeo account. The concept of circular and conical meshes is described in a paper written by H. Pottmann and J. Wallner.
The principles of the tool are: - all nodes are located on a ray through the point in the direction of the normal - the distance from input surface to pq mesh is adjustable - two of the edges are controlled by the graph-mapper
A parametric tool for the design of planar quadliteral meshes based on uv-grid and normal directions of a design-driving NURBS surface.
The glazed freeform grid shell of the hippo house in the berlin zoo, has been designed by Schlaich, Bergerman + Partner. It consists of planar quadliterals, the geometry is based on a translational surface.
In this paper, a comprehensive discussion about geometric aspects of surface tesselation, by H.Pottmann et. al., can be found. A direct parametric approach, developed by Gehry Partners and Schlaich, Bergemann & Partners is described in this paper.
Download the definition for the planar quad mesh tool here.
On this blog I documented some of my findings, ideas, and projects from the years 2009-2013. Its a private and non-commercial website, and the content isn´t updated any more, so please forgive broken links and outdated information. I keep it as a personal archive.