Essentials of Perspective: With Illustrations Drawn by the Author (1887)
Miller, Leslie William, 1848-1931 · New York: C. Scribner's Sons · leaf 45
e edge of a roof, for example—whether you have occasion to regard it as a diagonal or not. And such lines are often used in drawingis shown in Fig. 41. Divisions of surfaces into any even number of parts are usually made by drawing both diagonals.The diagram in Fig. 40 shows how these were used to… … Fig. 41. stairways, etc., as 36 ESSENTIALS OF PERSPECTIVE. by increasing the number of diagonals. Now, as you increase the number of these diagonals, by adding thoseof the rectangular spaces into which the surface comes to be divided, you notice that these diagonals formother sets of parallel lines…
Perspective · Drawing -- Study and teaching
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
