Projection Systems
I loved this little book called Drawing Systems by Fred Dubery and John Willats that I found at the Ohlone Library. I decided to share some text and diagrams from the book as they are concise, and effective (not to mention they look super cool). The three woodcuts on the bottom of the post are all by Albrecht Durer. The rest of the text on this post has been appropriated from the original book. Projection systems Any projection system depends on the idea of straight projection lines running from points on an object to corresponding points on a flat surface. The type of projection system depends on the relationship of these lines to each other: whether they diverge, converge, or run parallel, and the angle at which they strike the surface. Orthographic projection In the simplest case, these lines are parallel, and strike the surface at right angles. The setting sun, directly facing a flat wall, will throw shadows on to it which are the same size and shape as the objects they repre...