Perspective, Interlude: How to draw a circle/ellipse with just a ruler and a pencil

This bit fell off the last post since it would’ve veered away too far from the main topic. So, taking a quick detour because I found an alternate way of creating a circle that comes in especially handy if one doesn't have any circle-creating tools at hand. It's also a bit more exact because it uses 12 points instead of 8.

The two methods in comparison:


( details under the cut )

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By the way, I found an interesting article comparing various kinds of graphical projection for use in RPGs