Thanks a lot
This already looks nice and I already checked the ?wireframe, but with no
examples and as newcommer its hard to find out a correct code.
If we set drape=F in the example:
g <- expand.grid(x = 1:10, y = 5:15, gr = 1:2)
g$z <- log((g$x^g$g + g$y^2) * g$gr)
wireframe(z ~ x * y, data = g, groups = gr,
scales = list(arrows = FALSE),
drape = F, colorkey = TRUE,
screen = list(z = 30, x = -60))
you get a two color pic of these layers - and what I'm actually looking for is
making just the UPPER (toplayer) transparent.
Thanks for further help
marc
-------- Original-Nachricht --------
> Datum: Thu, 27 Sep 2007 11:29:19 +0200
> Von: "Frede Aakmann Tøgersen" <[EMAIL PROTECTED]>
> An: "marcg" <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> Betreff: SV: [R] different colors for two wireframes in same plot
> You can obtain some transparency setting the alpha transparency. This is
> device dependent though. Using the pdf device you can do this obtaining
> transparency of both surfaces (the version must be at least 1.4 for
> semitransparent output to be understood):
>
>
> pdf("test.pdf",version="1.4")
> wireframe(z ~ x * y, data = g, groups = gr,
> scales = list(arrows = FALSE),
> drape = TRUE, colorkey = TRUE,
> screen = list(z = 30, x = -60),
> par.settings = list(regions=list(alpha=0.75)))
> dev.off()
>
> See ?wireframe for the "at, col.regions, alpha.regions" arguments.
>
> Does this suffice?
>
>
> Med venlig hilsen
> Frede Aakmann Tøgersen
>
>
>
>
> > -----Oprindelig meddelelse-----
> > Fra: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] På vegne af marcg
> > Sendt: 27. september 2007 09:22
> > Til: [EMAIL PROTECTED]
> > Emne: [R] different colors for two wireframes in same plot
> >
> > Hello R,
> >
> > According to:
> >
> > g <- expand.grid(x = 1:10, y = 5:15, gr = 1:2) g$z <-
> > log((g$x^g$g + g$y^2) * g$gr) wireframe(z ~ x * y, data = g,
> > groups = gr,
> > scales = list(arrows = FALSE),
> > drape = TRUE, colorkey = TRUE,
> > screen = list(z = 30, x = -60))
> >
> > i have two wireframes in one plot.
> >
> > How could i change the color of the top - one to transparent
> > (or only the grid). I want to give insight to the lower layer.
> >
> > Could one make an if-statment like (if gr==1 do drape=F or
> > color=none) if gr=2 do drape=T, colorkey=T)
> >
> > Thanks for your help
> >
> > Marc
> >
> > --
> > Psssst! Schon vom neuen GMX MultiMessenger gehört?
> > Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
> >
> > ______________________________________________
> > 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.
> >
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