Sorry, correction. X11() is not supposed to do that. So on Windows, per-pixel alpha is no option apparently. Any chance this will be implemented in the future?
Cheers Joris PS : also thx to Simon for his helpful answer earlier. On Tue, Feb 15, 2011 at 2:40 PM, Joris Meys <jorism...@gmail.com> wrote: > 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 > -- 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
