Figure 6From: Geometric computing for freeform architectureRelation torsion-free nodes - multilayer structures. This image shows an ‘outer’ layer in front and an ‘inner’ layer behind it; these two layes are based on parallel meshes. One can clearly observe that the planes which connect corresponding edges serve as the symmetry planes of beams, and for each vertex these planes intersect in a node axis, which connects corresponding vertices (image courtesy B. Schneider).Back to article page