Figure 19.5: Figure 19.5 (a) Leonardo da Vinci’s Vitruvian Man (circa 1490), based on body proportions by Vitruvius (architect and engineer, 1st century B.C.). Despite claims on the Web and in the thriller The Da Vinci Code, neither Vitruvius nor Leonardo suggested using for human proportions or anything else. (b) Le Corbusier, however, did use in his “Modulor” scale of proportions.