Re: [Freetype] contours self intersecting

[David Turner]

Hi Wallace,

> Sorry for the typo:
> I meant What is a non-zero winding rule?
>

There are essentially two algorithms to fill self-intersecting
polygons:

  - odd-even rule
  - non-zero winding rule

I won't detail them here, since you should be able to learn
about them in any good graphics book. For examples, have a
look at:

http://www.w3.org/TR/2001/PR-SVG-20010719/painting.html#FillProperties

and look at the "fill-rule" property definition and example graphics..

Regards,

- David