IV.3A.a1 Leonardo da Vinci, Codex Atlanticus, 520r Spiral-form mazzocchio. The "body born of perspective", as Leonardo called it, is a sort of mazzocchio formed of two intertwined spiral rings. Each ring is made up of a series of segments, resulting from the twisting of an ordinary octagonal-section mazzocchio.
[IV.3ATransformation of Geometric Shapes]
Leonardo applied himself diligently to the study of geometric transmutations, to which he had planned to dedicate an entire treatise.
