How to draw a precise circular arc in Adobe Illustrator?


Say, an arc with radius r centered at o, from angle a to angle b.

I don't see how to use Arc tool in Adobe Illustrator this way. What's the best way to draw it?

4/19/2011 11:10:00 PM

Accepted Answer

AI sucks for this. Illustrator doesn't draw "real" circles (ie., using centerpoint and radius) either, it makes an Ellipse using bezier curves.

Your best bet is to make a Ellipse with equal width & height (ie., a circle) and use 2 Line Segment shapes to intersect the Ellipse. It takes 3-4 steps instead of 1, but it will allow you to use specific dimensions.

4/20/2011 12:09:00 AM

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