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[Bug 608712] Re: In Ubuntu font, autohinted distance to diaeresis varies between letters

 

I noticed this with a different font using the native OpenType/CFF
(.otf) hinter. Is has to do with making the overshoot on top-round
letters (e.g. a, e, o) visible, shifting diacritics upwards by the same
amount as the round top. Note how flat-top letters like i, u, and y
align to each other.

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https://bugs.launchpad.net/bugs/608712

Title:
  In Ubuntu font, autohinted distance to diaeresis varies between
  letters

Status in freetype package in Ubuntu:
  Triaged

Bug description:
  1. Load the attached HTML file in an app that uses the Ubuntu font's
  manual hinting.
  <https://launchpadlibrarian.net/191175915/diaeresis.html>

  2. Load the same file in an app that uses the autohinter.

  What you see:

  1. At any size, the distance from any letter to its diaeresis is the
  same number of pixels.
  <https://launchpadlibrarian.net/191175771/608712-hinted-diaereses.png>

  2. The distance from a letter to its diaeresis varies.
  <https://launchpadlibrarian.net/191177008/608712-autohinted-
  diaereses.png>

  What you should see:
  2. At any size, the distance from any letter to its diaeresis is the same number of pixels.

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