[metapost] description of glyph operator for MetaPost v1.200

[Taco Hoekwater]

Dan Luecking wrote:
> At 08:32 AM 5/6/2009, you wrote:
>> I'd like to make sure the documentation of
>> the new primitive is sufficiently clear for ordinary users to
>> understand.  You can find a preview of the corresponding section at
>>
>> <URL:http://home.arcor.de/stephanhennig/Downloads/metapost/mpman-glyph.pdf>
> 
> 
> Is the following really correct?
> 
>    "Clockwise oriented contours add to the shape of a glyph and are
>     drawn in black ink. Counter-clockwise oriented contours erase
>     parts of other contours, i.e., make them transparent again"
> 
> One normally thinks of counterclockwise as positive and clockwise

Not in font characters. Type 1 fonts use eofill, with the outer part
of the path followed clockwise. Weird, but that's how it is.

Best wishes,
Taco