Gridshells without geometric torsion (torsion-free nodes)

[DanielPiker]

Here’s an example file of making a quad mesh conical and generating the torsion free offset structure

Ellipsoid mesh from curvature lines

Here are a couple of examples with the Conicalize goal. Note that (unlike the CyclicQuad and Isothermic goals) this goal doesn’t ensure planarity on its own - you need to add a Planarize goal too. This is because there are some applications where it is useful to apply the angle condition for conical meshes but on non planar quads (in particular, asymptotic gridshells). Also shown here is the face-face offset mesh component generating torsion free beam layouts. One shows something you can scul…