Inspired by the work of Elisa Strozyk, I wrote a script, that imposes a specific length to all edges of a given mesh. For triangulated input meshes, this results in equilateral triangles as faces. Download the python script for Rhino here.
The final geometry is a discrete representation of a crumpled developable surface, if the mesh is consisting only of nodes with the valence of six and of triangular faces. More digitally crumpled surfaces by Tamahiro Tachi on flickr.
Le Topologicon is a great comic book about topology. The author is Jean-Pierre Petit who discovered the first parameterization of the boy surface in 1981. He is also the co-founder of the non-profit organization Savoir-sans-frontiers. The book deals with moebius strips, klein bottles, boy surfaces, magnetic fields, surface stiching and a lot more interesting topics. In my opinion, the Topologicon is a must-read for everyone dealing with surface modelling, mesh modelling, subdivision surfaces, surface tesselation, vector fields, deformations, or topological space. Some example pages:
Inspired by Frei Otto's sun-shade machine, this grasshopper definiton generates the shadow of mesh objects for a given geographical location, date, and time. North is in positive y-direction.
"The sun-shade machine, [...] is an extremly flexible tool for determining in the first phase of planning the areas of insolation and shade. [...] the sun-shade machine offers an infinitely variable adjustment for three parameters: geographical location, month, nd time of the day." IL 30 Vela, Toldos, sun and shade (1986)
Inspiered by the IXth chapter of D'Arcy Thompson's On growth and form I build a definition for the deformation of mesh models. The reference surface should be in the XZ plane.
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 Its a private and non-commercial website, and the content isn´t updated any more, so please forgive broken links and outdated information.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.
Inspired by Frei Otto's sun-shade machine, this grasshopper definiton generates the shadow of mesh objects for a given geographical location, date, and time. North is in positive y-direction.
"The sun-shade machine, [...] is an extremly flexible tool for determining in the first phase of planning the areas of insolation and shade. [...] the sun-shade machine offers an infinitely variable adjustment for three parameters: geographical location, month, nd time of the day." IL 30 Vela, Toldos, sun and shade (1986)
Download the grasshopper definition here
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