De gli horologi solari nelle superficie piane
Muzio Oddi's 1614 Milanese treatise on sundials for flat surfaces, printed in Milan by Giacomo Lantoni, is a technical manual of dialling geometry aimed at instrument makers and mathematicians. The pictures are precise line diagrams of circles, tangent lines and intersecting rays, with a designer able to borrow their clean construction logic, radiating-line rhythm and compass-drawn arcs for geometric pattern work.
