Nipples — torso cross-axis
transverse proportion reference
Nipples — torso cross-axis is a proportional landmark used to read the Vitruvian figure’s symmetry and modules. The point is a diagrammatic reference derived from the architectural text and Renaissance visual reception, not a diagnostic or metaphysical body centre.
Point 3 of 8 in Vitruvian Sacred Geometry
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Vitruvius, De architectura (primary_canonical)
Book III.1–3 sets out the human figure’s proportional modules, symmetry, and the circle-and-square construction; the head-as-eighth-part convention is taken from the proportional discussion.
Leonardo da Vinci, Paris Manuscript B and accompanying Vitruvian Man drawing (secondary)
Leonardo’s annotated figure visualises the circle and square around a standing human body and adds Renaissance proportional observations; it is a reception and reinterpretation of Vitruvius.
Richard Tobin, “The Shape of the Human Body in Vitruvius,” in The Journal of Roman Studies (scholarly_modern)
Modern analysis of Vitruvian anthropometric ratios and the interpretive problems of reconstructing the ancient proportional text.