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raphlinus's profile
Raph Levien
Raph Levien
Raph Levien
@raphlinus

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Raph Levien

@raphlinus

Rust. Fonts. Graphics. Quaker. Independent. he/him

Berkeley, CA
levien.com
Joined May 2009

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    1. Just van Rossum‏ @justvanrossum 26 Feb 2019
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      Just van Rossum Retweeted Nick Sherman

      1/2 Drawing an S-curve without any inflection point defers shape judgement largely to the Bézier algorithm. If we assume the top-left and bottom-right extrema to be fixed, the S-curve is then reduced to only two parameters: the lengths of the handles.https://twitter.com/NickSherman/status/1100477153605410816 …

      Just van Rossum added,

      Nick Sherman @NickSherman
      Poll for bézier letter drafters: When do you usually add inflection points to the spine of your ‘S’ outlines?
      6 replies 5 retweets 50 likes
      Show this thread
    2. Tim Ahrens‏ @TimAhrens 27 Feb 2019
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      Replying to @justvanrossum

      Placing a node literally at the inflection point makes G2 continuity (continuous curvature) very hard to achieve, as the vertical handles are on two different half-planes with respect to the diagonal. 1/2pic.twitter.com/LW0VziTLmn

      2 replies 1 retweet 13 likes
    3. Just van Rossum‏ @justvanrossum 27 Feb 2019
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      Replying to @TimAhrens

      I prefer to know exactly where the inflection point is and what the angle is. I see your point about the continuity, but I've never experienced that (visually) as an actual problem.

      2 replies 0 retweets 5 likes
    4. Underware‏ @underware 27 Feb 2019
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      Replying to @justvanrossum @TimAhrens

      Off-topic, but related: Illustrator has G2 drawing mode. The Harmonizer can modify contour to G2 (right?). Is there a font-editor with G2 drawing mode?

      2 replies 0 retweets 2 likes
    5. Ben Mitchell‏ @OhBendy 27 Feb 2019
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      Replying to @underware @justvanrossum @TimAhrens

      FontForge (uck) has Spiro drawing mode: http://designwithfontforge.com/en-US/Drawing_With_Spiro.html …

      1 reply 1 retweet 0 likes
    6. Hrant H Papazian‏ @hhpapazian 27 Feb 2019
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      Replying to @OhBendy @underware and

      Yes, I was just wondering where the inflection point would end up when such a spiro curve is converted to bézier... CC: @raphlinus

      1 reply 0 retweets 0 likes
      Raph Levien‏ @raphlinus 27 Feb 2019
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      Replying to @hhpapazian @OhBendy and

      My spline research (http://spline.technology ) is G2, and I'm in the process of pitching a new font editor based on it. More info soon.

      9:56 AM - 27 Feb 2019
      • 1 Retweet
      • 3 Likes
      • Craig Eliason Dr Wouter Soudan Just van Rossum Hrant H Papazian
      1 reply 1 retweet 3 likes
        1. New conversation
        2. Ben Mitchell‏ @OhBendy 27 Feb 2019
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          Replying to @raphlinus @hhpapazian and

          I love working with Spiros, would love to see them in all font editors :-)

          1 reply 0 retweets 0 likes
        3. Hrant H Papazian‏ @hhpapazian 27 Feb 2019
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          Replying to @OhBendy @raphlinus and

          Especially platform-agnostic ones... :->

          0 replies 0 retweets 0 likes
        4. End of conversation

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