Mystery Illustration 52

So . . . vector graphics?

Vector graphics are based on lines that change direction as they reach endpoints. In this case those smooth curves of the ears would be a series of angular lines. Close to a curve but not perfect. These are lines are geometric. Passing straight through two points on their way to and from infinity.

I was doing doodles like that in high school geometry class - mostly buildings and cityscapes - in 1961. This is when the only computers that could handle equations were giant mainframes. It is not nearly as hard as they make it out to be. It simply takes a keen eye, a steady hand, and some insight. The trick is to draw tangents to curved lines at steadily varying angles. If you want to try it, I suggest you start out with simple outline drawings with convex curves, as the picture illustrates. Pencil them in lightly, and then add the straight lines with a straightedge and a fine point pen.

I believe the mathematical term is a "bundle".