Hi, As described in [1], OpenType Spec 1.3 added VORG table, when this table is present, the y coordinate of a glyph's vertical origin can be calculated directly from the 'VORG'. XeTeX doesn't seemed to support this. Plus, in the vmtx table, it seems only advanceHeight is used, topSideBearing of each glyph is totally ignored, any reason for that?
- Jiang [1] http://www.microsoft.com/typography/otspec/VORG.htm -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex