Issue with Underline Position value

RoxaneGataud

Hello all,

I have an issue with a custom underline position value.

I set underline position in the font info at -180. Otf exported with Batch extension changes this value to -40, otf exported with Export Font changes the value to -140.

I tried in safe mode, and on another ufo but the issue remains. Any ideas on how to fix this ?

Thank you!

frederik

see Franks comments here https://github.com/adobe-type-tools/afdko/issues/1205

RoxaneGataud

@frederik I have Version 3.4 (build 2004281315)

frederik

@RoxaneGataud what is your RoboFont version?

RoxaneGataud

Hey @gferreira,

Thank you for your help! I tried running the script but unfortunately I get the same result as before :

-180
-140

What can I do ?

gferreira

hello @RoxaneGataud,

I’ve tried to reproduce the issue using the script below, but I’m getting the correct values. generating from the menu also works fine.

from fontTools.ttLib import TTFont

ufoPath = '/myFolder/myFont.ufo'
otfPath = ufoPath.replace('.ufo', '_test-underline.otf')

# set underline value in UFO and generate otf
f = OpenFont(ufoPath, showInterface=False)
f.info.postscriptUnderlinePosition = -180
f.generate("otfcff", otfPath)
f.close()

# check underline value in otf with fontTools
with TTFont(otfPath) as f:
    print(f["post"].underlinePosition)
    # print(f["CFF "].cff[0].rawDict['UnderlinePosition'])

# double-check value by opening the otf as UFO
f = OpenFont(otfPath, showInterface=False)
print(f.info.postscriptUnderlinePosition)

-180
-180

can you please try this script with your font, and let us know if it works?

thanks!

UNSOLVED Issue with Underline Position value