on 02/06/2009 01:32 PM Rachel Albrecht wrote: > Hi! > > Whenever I save a graphic in ps/eps format generated by filled.contour or > image, an undesired grid is added to it (not visible on the X11 screen). For > example: > > postscript("volcano.eps") > filled.contour(volcano,col=gray(seq(0,1,,50)),levels=seq(min(volcano),max(volcano),,50)) > dev.off() > > Any ideia how to eliminate this grid? > > Thanks, > Rachel
I can confirm the problem, running: R version 2.8.1 Patched (2009-01-24 r47726) on Fedora 10. The problem is actually worse if using the pdf() device, with additional artifacts present. There was a posting about this back in 2003: https://stat.ethz.ch/pipermail/r-help/2003-August/037348.html with no replies. There is a bug report here from 2004: http://bugs.r-project.org/cgi-bin/R/Graphics?id=6763 that seems to be related. So it seems the issue has been around for a while. I tried increasing the granularity of the color scale, though without any benefit. Will have to defer to the graphics device wizaRds on this one. Marc Schwartz ______________________________________________ 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.