Re: [Fontforge-users] GPOS dose not work

[<gw...@si...>]

> I am tring to use GPOS.
> It works well some cases but dose not work some cases.
> It looks depens OTF Glypf Class.

> I am trying Mark to Base type.
      +----------------------+--------
      |    Glypf class of    |result
      |  Base      |Mark     |
      +------------+---------+-------
      | Base Glypf |Mark     | NG
      +------------+---------+-------
      | Automatic  |Automatic| Good
      +------------+---------+---------

> Is this correct? 
I don't really understand what you are asking.

In a mark to base class, a mark may be positioned on a base glyph, not on another mark glyph. Mark glyphs are distinguished from base glyphs because they have mark anchor points not base anchor points.