Thx again for your answer. I've tried X11() - which is supposed to support alpha per pixel as well, but on Windows that's still no avail. So basically, on Windows I can forget about alpha?
Cheers Jors On Tue, Feb 15, 2011 at 2:20 PM, Ben Bolker <bbol...@gmail.com> wrote: > Joris Meys <jorismeys <at> gmail.com> writes: > >> >> I believed the standard plotting device on R in 2.12.1 would support >> per-pixel alpha. It does support alpha, as >> >> plot(1:2,type="l") >> polygon(c(1,1,2,2),c(1,2,2,1),col=rgb(60,100,60,60,maxColorValue=255)) >> >> plots correctly. Which device should I use then? > > See > > http://developer.r-project.org/Raster/raster-RFC.html > > (near the bottom of the page, where it explains that the > Windows device supports alpha but not per-pixel alpha ...) > > cheers > Ben Bolker > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 joris.m...@ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
