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Re: [tex-live] Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?
From: |
Vladimir Volovich |
Subject: |
Re: [tex-live] Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend? |
Date: |
Wed, 05 Jan 2005 16:56:13 +0300 |
User-agent: |
Gnus/5.110003 (No Gnus v0.3) Emacs/21.3 (gnu/linux) |
"GW" == George Williams writes:
>> Then they have to be there in the CFF separately. The H/D can be
>> different from the outlines, eg. due to overshoot.
GW> What do you mean by overshoot?
GW> Remember tfm metrics are not perfect. There are only 16 possible
GW> values for depth or height, and one of these is required to be
GW> 0. So in a font with many different glyph sizes the tfm file has
GW> already done some kind of grouping operation which can lose a lot
GW> of information.
GW> All the information about the glyph's shape is contained in its
GW> outline. It's going to be far more accurate than a rounded tfm
GW> value.
No, the glyph height, for example, is used by TeX to put calculate
accent positioning over the glyph. And by design, some glyphs like "o"
have small "overshoots", which should not lead to a change in
caculated accent position. So having glyph dimentions as separate
entities (rather than obtained from glyph outline) seems the right
thing to do.
(added Cc to address@hidden, as this discussion is most
relevant to that list).
Best,
v.
- Re: UTF8 and (La)TeX backend?, (continued)
- Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/04
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/03
- Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/04
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, Rogier van Dalen, 2005/01/04
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, George Williams, 2005/01/04
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/04
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, George Williams, 2005/01/05
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/04
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, George Williams, 2005/01/05
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/05
- Re: [tex-live] Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?,
Vladimir Volovich <=
- Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?, Rogier van Dalen, 2005/01/05
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/04
- Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/06
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/06
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/09
- Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/10
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/26
- Re: UTF8 and (La)TeX backend?, Werner LEMBERG, 2005/01/27
- Re: UTF8 and (La)TeX backend?, Han-Wen Nienhuys, 2005/01/08