Festungs-Bau, des Graffen von Pagan
A 1725 German edition of Blaise François de Pagan's treatise on fortification, published by Johann Friedrich Fleischer and translated by Martin Leuschner for military engineers and students of fortress design. The plates are numbered engraved diagrams of bastion plans, star-shaped fortification outlines, and geometric constructions of polygons inscribed in circles, drawn in fine black line with dimension scales. A designer could take from them the precise, rule-based geometry of radiating star forms and nested polygonal outlines as a source for symmetrical pattern and grid work.
