On Thu, Jul 2, 2009 at 7:11 PM, Sean Carmody <seancarm...@gmail.com> wrote:
> I have been plotting the same charts using png on a Windows machine > and on a Mac OSX and the quality of the resulting images, particularly > in relation to the fonts, look far superior in the plots produced on > the Mac. Is there any way I can enhance the quality of the plots > produced on the Windows machine? I have also tried using win.metafile > on the Windows machine and the quality looks the same as the png. The > obvious solution would be to just use the Mac, but that's not an > option in the office! > > I have been searching the archives on this topic to no avail (although > I can vouch for the perspicacity of my choice of search terms), so any > help would be greatly appreciated! > Your issue probably has to do with antialiasing. See number 8 in this list: http://blog.revolution-computing.com/2009/01/10-tips-for-making-your-r-graphics-look-their-best.html You can supposedly work around it using the Cairo package and CairoPNG() instead of png(), as shown here: http://www.mailund.dk/index.php/2009/01/25/antialias-plotting-in-r-using-cairo/ However, in my experience, the fonts don't work right in Windows XP with CairoPNG. You can see it in this chart I made using different rendering methods on different platforms (scroll down to CairoPNG). http://stdout.org/~winston/X/r-antialias/pch.html I posted about a related issue a little while back but never got a response.... hopefully someone else will be able to explain how to make it work! -Winston [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
