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A set of fonts that each have the same critical points marked (the curly tip of an f, the three endpoints of a T.)
Extremes of "times bold here, grotesque condensed here" are marked on a page; the formatter interpolates, slowly changing from one
extreme to the other.
[Update: If the two fonts
come from the same family within Don Knuth's Metafont system, this is easy. In the general case, the
consensus seems to be that the result would be too ugly to even try.]
Fontographer
http://www.macromed...cuments/tn3708.html
Tech note describing Fontographer's font interpolation. [tomierna, Feb 28 1998]
[link]
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Douglas Hofstadter's FARG work is very much in this direction. |
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Typographers and designers and such use a nextgen TrueType based system called multiple master fonts. This system works by each font family haviing several dimensions (italic, bold, serif, spacing), and the user can select a font using gradiations of those dimensions (30% serifed, 20% bold, 50% italic). I believe Adobe has had a hand in pushing this technology. |
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TrueType was an Apple innovation licensed by Microsoft and others. |
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Multiple masters were an extension of Adobe's Postscript font technology. You may be familiar with a couple of them as they are included in Adobe Acrobat Reader installs. |
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Additionally, a program called Fontographer has had font interpolation available for quite some time. |
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