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[interpolatable] Avoid division-by-zero

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Fixes https://github.com/fonttools/fonttools/issues/3533
This commit is contained in:
Behdad Esfahbod 2024-05-27 10:22:29 -06:00
parent 369a21353a
commit c2cf6e6d04
1 changed files with 3 additions and 1 deletions
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4
Lib/fontTools/varLib/interpolatableTestStartingPoint.py
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@ -49,7 +49,9 @@ def test_starting_point(glyph0, glyph1, ix, tolerance, matching):
meanY = vector[2] meanY = vector[2]
stddevX = vector[3] * 0.5 stddevX = vector[3] * 0.5
stddevY = vector[4] * 0.5 stddevY = vector[4] * 0.5
correlation = vector[5] / abs(vector[0]) correlation = vector[5]
if correlation:
correlation /= abs(vector[0])
# https://cookierobotics.com/007/ # https://cookierobotics.com/007/
a = stddevX * stddevX # VarianceX a = stddevX * stddevX # VarianceX