Re: Font files and vertical text

[Lawrence D'Oliveiro]

On Sun, 16 May 2021 11:05:46 -0700, Harold Hallikainen wrote:

> 1. On most systems, the vertical position of the column of text is
> based on the top, bottom, or center of the bounding box for the
> rendered column of text. I think it SHOULD be based on the vertical
> origin of the first character, vertical origin + advance height of
> the bottom character, or the center of these two points.

I remember, a long time ago, back in about the time of Aldus (not yet
Adobe) PageMaker, a comment I read somewhere that CJK text rendering is
best thought of as happening on a grid of character cells, not in terms
of font metrics, fixed-width or otherwise.

Not sure if that helps ...