On Thu, 27 Sep 2007, Frede Aakmann Tøgersen wrote:
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):
In any recent version of R ?pdf says
version: a string describing the PDF version that will be required to
view the output. This is a minimum, and will be increased
(with a warning) if necessary.
so you don't actually _need_ to specify the version. (This came up in a
thread about ggplot2 and Sweave as well.)
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
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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
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