Re: composites circle
Lawrence D'Oliveiro <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Organization | Geek Central |
| Message-ID | <[email protected]> |
On Sat, 16 Jan 2016 23:55:52 +0100, Alex Vazquez wrote: > Code: > http://pasted.co/634b16c6 This does not seem to be using alpha transparency anywhere. But going back to the original example <http://postimg.org/image/ieohdu29t/>, I think I previously misunderstood what was going on. Each disc is opaque outside the intersecting area. The intersecting part has a mix of the two colours. So really, draw each circle with an opaque colour clipped outside the other circle. Then fill the mixed colour, clipped to the intersection of the two circles. -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo