-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/15/2011 08:44 AM, Joris Meys wrote: > 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.
Hmmm. I think your best bet would be http://cran.r-project.org/web/packages/Cairo/index.html ... ? > > 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 >> > > > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1ai+oACgkQc5UpGjwzenPNWQCgiMQwXc9t/8DnziWOZJbk1Aqw X+IAnA9G+VwcknZPisZ5pqVICxEQ+L++ =iPcR -----END PGP SIGNATURE----- ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
