FontForgeĪlso plays a role here, as the conversion between upEMs and conic/cubicĬurves may introduce rounding problems. Maybe the designer did it on purpose to save points. ![]() That you get off-by-one-missing-extremas on terminals and serifs and This may be partly because the font sources were using floating pointĬoordinates and the production scripts rounded to integers in such a way Seriously, check aįew system fonts and wonder about all the faults FF finds. Various fonts shipped with the system or elsewhere. otfįor better rendering with FreeType's CFF engine and also when looking at I run into the same issues all the time when converting fonts to. Sent from the User mailing list archive at. Possibly overlapping those created by autohinting. FontForge has an option to add hints when it generates fonts, I don't really know how to deal with overlapped hints. On the error message and selecting "mark for overlap fix before save." Points, and fixed them by either untwisting at a corner point or deletingĪfter converting to cubic splines and validating again, six glyphs with Double-clicking each error message toīring up glyph view, I identified the errors by zooming in on the selected Validate, round, validate, add extrema, repeat, until only four With some effort I was able to fix all the problems. Maybe the only thing you're doing wrong is holding the font In other words: by the strict standards used for FontForge validation, theįont as distributed is so badly formed that FontForge is unable to fix itĪutomatically. I proceeded more carefully:Įlement, Validation, Validate: many, many "missing points at extrema" Įdit, Select, Glyphs Worth Outputting Element, Add ExtremaĮlement, Validation, Validate: many, many "Non-integral coordinates"Įlement, Validation, Validate: many, but not so many "non-integralĬoordinates" and "missing points at extrema," sometimes both in the same Question: Anything else that I’m doing wrong? Question: What, if anything, should I do about these errors? Would you like to review the errors or save the font anyway?Ī review of the errors shows that there are, indeed, scores of errors reported? ![]() Glyph contains overlapped hints (in the same hint mask) When automatic validation is done, the following message is printed: In addition, I changed the em size from 2048 to 1000. I found the following instructions, which I followedĬonverting from TrueType (quadratic splines, ttf files) to PostScript (cubic splines, otf and pfb files): otf, so that I could edit glyphs with cubic splines. ![]() ![]() Start with DoulosSIL-R.ttf, which is obviously a TrueType font (quadratic splines).Ģ. As the Pitman/Ellis 1847 alphabet has not yet been added to Unicode (there's a moribund proposal to add these characters at ) I will add the new glyphs in a Unicode Private Use Area.įor better or worse, here’s what I decided to try:ġ. I want to add some glyphs (from the Pitman/Ellis 1847 phonotypic alphabet) to an existing font, and then use the resulting augmented font in LaTeX/XeTeX. Library based on sources from 14:57 GMT 3. I have used FontForge in the past (years ago), but I’m definitely no expert, and I’m basically relearning everything.Ĭopyright (c) 2000-2012 by George Williams.Įxecutable based on sources from 14:57 GMT 3-ML.
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