From: John Hudson (john@tiro.ca)
Date: Wed Nov 21 2007 - 12:29:51 CST
The implementation issue for embedded Mongolian is confused by the fact that the script is
currently implemented in OpenType fonts as if it were a LTR script, i.e. the outlines are
designed left-to-right in the glyph space rather than top to bottom, and then the text
blocks are rotated for vertical display. This is itself a questionable practice, although
it obviously simplifies font development and line layout for Mongolian.
This means that RTL embedding would require, as Peter points out, a 180 degree rotation
from the 'normal' direction of the text, rather than a choice between a 90 degree rotation
either clockwise or counter clockwise depending on the direction of the surrounding
horizontal text.
John Hudson
-- Tiro Typeworks www.tiro.com Gulf Islands, BC tiro@tiro.com I'm like that Umberto Eco guy, but without the writing. -- anonymous caller
This archive was generated by hypermail 2.1.5 : Wed Nov 21 2007 - 13:37:56 CST