On 2/9/2007 4:16 PM, Greg Snow wrote: > The rgl package has an rgl.postscript function that should do that for > you (I think there was a bug discovered and fixed recently, so make sure > to get the latest version).
Yes, that's right. If you see any other bugs, please let me know. (One known bug is not in rgl: Mac OSX Preview won't show .pdf files created by rgl properly. That's an Apple bug, not an rgl bug. Please complain to them: it's been known for more than a year.) Duncan Murdoch > > -- > Gregory (Greg) L. Snow Ph.D. > Statistical Data Center > Intermountain Healthcare > [EMAIL PROTECTED] > (801) 408-8111 > > > > > > > ________________________________ > > From: Roland Rau [mailto:[EMAIL PROTECTED] > Sent: Friday, February 09, 2007 12:46 PM > To: Duncan Murdoch > Cc: Greg Snow; r-help > Subject: Re: [R] two perspective plots in in plot > > > Thanks Duncan and Greg. > My current solution is to use the rgl-package. > Is there an easy way to obtain a screenshot in eps- or > pdf-Format from such an rgl-window? > I saw the rgl.snapshot function but it does not provide this > format. > > So far, I take a snapshot, save it as jpeg and convert it to eps > via jpeg2ps.exe > Maybe not the most elegant way but the results are better than I > anticipated. > > Thanks, > Roland > > > > > On 2/9/07, Duncan Murdoch <[EMAIL PROTECTED]> wrote: > > On 2/9/2007 1:11 PM, Greg Snow wrote: > > Probably the easiest way is to use the "wireframe" > function in the > > lattice package. The second example in the help shows > 2 surfaces (you > > do need to combine the data into a single data frame). > > > > > If you really want to use the "persp" function, then > you could create > > the first plot, then call "par(new=TRUE)" and then do > the 2nd plot, but > > that would take a lot of thinking to get the axes and > scales to line up > > properly and make it look good. > > Another alternative is to use the persp3d function and > surface3d > functions in the rgl package. It would be quite tricky > to get persp to > handle hidden surfaces properly, whereas rgl will just > do it (as long as > neither is transparent. Transparency is hard.) > > For example, after running example(persp) so that x, y, > and z contain > values that were just used in > > persp(x, y, z, theta = 135, phi = 30, col = "green3", > scale = FALSE, > ltheta = -120, shade = 0.75, border = NA, box = > FALSE) > > you can run > > library(rgl) > > persp3d(x,y,z, col="green3", aspect="iso", axes=FALSE, > box=FALSE, > xlab="", ylab="", zlab="") > > persp3d(x,y,(z + mean(z))/2, col="red", add=TRUE) > > and then rotate the surfaces to the desired viewing > angle. > > Duncan Murdoch > > > > ______________________________________________ [email protected] 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.
