When designing a geometric sans, such as Futura, do you adjust the thickness of a circular arc for a better visual match to a straight stroke? I'm hoping for a formula like “a circular arc of inner radius r and outer radius R will seem as thick as a straight stroke of thickness f(r,R)”; maybe it's simply R–r, maybe it's not, for all I know.

  • 4
    When designing typefaces...trust your eyes...not your math. – DA01 Sep 15 '15 at 1:16
  • If I don't trust my eyes, it would be nice to have at least a qualitative rule of thumb. – Anton Sherwood Apr 18 '16 at 16:45
  • Ya gotta trust your eyes. Or--at least--other people's eyes. Type design is very much an art. – DA01 Apr 18 '16 at 17:50
  • I'm rather amazed that, in the simplest possible case, no one is willing to go out on a limb to say whether it's less or more. – Anton Sherwood May 10 '18 at 4:48
  • You've been waiting 3 years for an answer? Regardless, there isn't one. There's no formula for type design. It's an art. – DA01 May 10 '18 at 17:37

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