Calculating Ascender and Descender

fermello78's picture

Like I said before, I'm working on a sans serif face in a vectorial program. Now I have to transport the glyphs to a font program.

I saw a formula at point central to calculate the ascender and descender values based on a 1000 em square, but after checking ascenders and descenders of font files I got confused about where to start to count the ascender and descender lines. Is the top limit of a capital acute (

hrant's picture

There are no firm rules, but the general practice seems to be to:
- Put the top limit somewhat above the ascenders or caps (whichever is higher) so that the cap accents float mostly above it.
- Put the bottom limit just a hair below the descenders.

hhp

fermello78's picture

Thanks Hrant

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