From: Thomas Chan (firstname.lastname@example.org)
Date: Tue Apr 29 2003 - 23:06:19 EDT
On Tue, 29 Apr 2003, Raymond Mercier wrote:
> Can someone please answer a question about TrueType Collections (TTC) :
> what do the fonts in the collection have in common, and how many might be
> included ?
> As far as I can see, up to three fonts can be combined in a TTC.
> Can it be assumed that they all provide for the same Unicode blocks ?
I've seen a TTC font that had four, maybe five font instances. It had Han
characters with "precomposed" Bopomofo ruby annotation attached to each
character; the extra font instances were for cases where the Han character
had multiple possible readings. I don't know what the point of a TTC font
was in this case, as it didn't save any disk space; the extra font
instances were not as completely populated as the first, and didn't
duplicate from the first.
But I've usually only seen two font instances in a TTC font, and all that
seemed to vary between the two was whether the Latin part was monospaced
or proportional. Han characters, bopomofo, kana, etc. seemed to be the
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