ttf compiler

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This topic contains 5 replies, has 3 voices, and was last updated by  frederik 7 years, 8 months ago.

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  • January 24, 2013 at 23:07 #5396

    Bas
    Participant

    How does RoboFont compile .ttf fonts?

    January 25, 2013 at 14:46 #5397

    frederik
    Keymaster

    not sure I understand what you mean.
    Anyhow:
    The OT features and naming tables are compiled by FDK and merged back in a ttf file with the converted glyph with cubic curves.

    January 25, 2013 at 15:43 #5398

    Jens K.
    Participant

    Interesting question … Do you use your own routines for outline conversion to quadratic beziers, or are there existing libraries perhaps in the FDK?

    January 25, 2013 at 16:38 #5399

    frederik
    Keymaster

    In RoboFont there are two possible ways to convert outlines:
    (see Spline Conversion http://doc.robofont.com/documentation/workspace/font-info/robofont/)

    One is 100% accurate to the outlines, which mean points will be added
    the other one is 100% accurate to the amounts of points, but the changes to the curve is minor, handy for interpolation afterwards

    January 28, 2013 at 10:17 #5401

    Bas
    Participant

    Sorry. I meant: what is RF’s path for generating .ttf fonts?

    For .otf fonts the path is something simple like: RF UFO > ufo2dfk > FDK generates .otf

    For .ttf fonts the path is something like: RF UFO > ???

    (eg. RF-python script + ttLib > FDK > RF-python script + ttLib > .ttf ?)

    January 28, 2013 at 11:28 #5402

    frederik
    Keymaster

    the ttf “path”:

    RF UFO > internal ttf compiler on top of ufo2fdk > glyph data .ttf > fdk for some tables > .ttf

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