Re: metapost terminal

[Andrzej <wa...@ga...>]

Ethan Merritt <merritt <at> u.washington.edu> writes:
> I found a pattern-fill extension to metapost on the web, but it requires
> a whole new wrapper layer on top of metapost which is probably more
> trouble than it is worth for this purpose.
> 	http://www.tug.org/tex-archive/graphics/metapost/macros/mpattern/
> Also there is this document, which I am sure you can evaluate
> better than I can 
> 	http://www.gust.org.pl/PDF/BIUL/09/06-pb.pdf

I have seen these sites last weekend, in my initial investigation on what is
available around. But know I have seen what kind of patterns we are talking
about (like those at the output of test in x11 terminal aren't we?). I think
drawing such simple pattern is sufficiently easy with basic commands, to avoid
dependency on this extra packages.

> > What is the chance that gnuplot will support pattern filling for other
> > shapes than boxes in future?
> 
> There's already a patch on SourceForge (#908456) that extends
> it to general polygons and filled curves.  But has only been implemented
> for the cgm gd pdf post svg and x11 terminal types.

Then I think I will do my "pattern" patch so that it is easily used for filling
other shapes. In MetaPost one basically needs to fill in a bounding box instead
of the box, and then clip. 

I guess that I should add pattern-filled polygons to this function:

TERM_PUBLIC void MP_filled_polygon __PROTO((int, gpiPoint *));

But what is the interface for filled curves? 

Oh, and I will have to learn using pm3d to test this :).

Andrzej