googlefonts
font.info.unitsPerEm seems to be required
https://github.com/googlei18n/cu2qu/blob/master/Lib/cu2qu/ufo.py#L224
would be nice to have some fallback value when the value is not set
What should the default unitsPerEm value be? I guess 1000. Maybe the UFO spec should say what the fallback value is when the value is not set.
The default 'DEFAULT_MAX_ERR' makes it confusing...
It should not be calculated from UPM if it is not set
On Wednesday, 21 September 2016, Cosimo Lupo [email protected] wrote:
What should the default unitsPerEm value be? I guess 1000. Maybe the UFO spec should say what the fallback value is when the value is not set.
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gr Frederik www.typemytype.com
Yeah, that's a bit confusing.
Also, I think we should disallow using a relative approximation error to convert compatibly fonts having different UPEMs, since OpenType Variations must have the same UPEM (if I am not mistaken).