Re: how do you draw an outline of a circle/ellipse

Lawrence D'Oliveiro <[email protected]> Sat, 14 Nov 2015 12:45:36 +1300

Newsgroups	gmane.comp.lib.cairo
Organization	Geek Central
Message-ID	<[email protected]>

On Fri, 13 Nov 2015 10:43:27 +0100, Uli Schlachter wrote:

> The "trick" is that save/restore does not save/restore the current
> path.

Interesting that this is one difference I noticed between the Cairo
graphics model and the PostScript one.

Having the CTM affect the stroke line width is following PostScript
behaviour. But since, in PostScript, gsave/grestore also save/restore
the current path, you can’t quite use this same trick--you have to
explicitly change the CTM instead.

Explicitly changing the CTM works in Cairo as well.
-- 
cairo mailing list
[email protected]
http://lists.cairographics.org/mailman/listinfo/cairo