[tex-live] Re: [Fontforge-devel] Re: UTF8 and (La)TeX backend?

[Werner LEMBERG]

> Remember tfm metrics are not perfect.  There are only 16 possible
> values for depth or height, and one of these is required to be 0.
> So in a font with many different glyph sizes the tfm file has
> already done some kind of grouping operation which can lose a lot of
> information.

Whatever the TeX height and depth values look like, they should be
exactly represented in the OpenType font -- remember that those values
are *completely independent* from the real glyph shape.  Replacing
them with bbox values is not possible.


    Werner