[Devel] transformation problem

[Werner LEMBERG]

David Turner mentioned on the FreeType list:

> Note also that the OpenType specification doesn't specify whether a
> transformation matrix within a composite glyph is stored as [ xx xy
> yx yy ] or [ xx yx xy yy ] ...
> 

> The Apple TrueType specification suggests that it's really [ xx yx
> xy yy ], however.  The TrueType loader (of FreeType) expects [ xx xy
> yx yy ].   This works e.g. with wingding.ttf.

The above assumes the following computation rule:

   zx = x*xx + y*xy
   zy = y*yx + y*yy

Can someone clarify this, please?  It should probably added to the
specs.


    Werner