[metapost] Filling complex paths

[Dan T. Abell]

Hi Tobias,

Have you tried using 'fill' for the outermost closed
curve, followed by 'unfill' on the closed curves inside?

	-Dan

On 16 Oct 2014, at 15:44, Tobias Columbus <tobias.columbus at gmail.com> wrote:

> Hi all,
> 
> I am currently writing a piece of software that should spit out some MetaPost
> code. My input are the closed curves of a glyph and I want to produce MetaPost
> code that fills them according to Postscript rules. However, as MetaPost cannot
> handle non-contiguous closed paths, this task seems difficult at least. 
> 
> Note that the glyphs come from non-Postscript fonts, so that the MetaPost
> "glyph" primitive does not work for me. I also tried "graphictext" as described
> in the Metafun manual but that turned out to be too inaccurate. I traced the
> inaccuracy back to "pstoedit", which is called for "graphictext".
> 
> My attempt was to fiddle around with specials and
> withprescript/withpostscript.  This attempt turned out to be nonsense as
> addto always writes "stroke" or "fill" and my specials were ignored. I
> could, of course, write the whole glyph with specials, but I would
> prefer a cleaner solution.
> 
> Has anybody some experience with this kind of problem? How difficult
> would it be to add filling of non-contiguous paths to MetaPost?
> 
> Thank you in advance,
> Tobias
> --
> http://tug.org/metapost/

--
Dan T. Abell :: dabell69 at earthlink dot net
169 76th St, Boulder CO 80303 :: 303.748.6894