On 10/8/2008 12:42 PM, Michael Friendly wrote:
Thanks, John
What you say about mixing rgl.* and *3d calls may be true, but that is
not my problem. After this occurred,
I tried many things, but reduced it to the smallest, most basic example
(in my original post), using only plot3d(), that
worked perfectly in both the CRAN and R-Forge versions, until the first
time I used rgl.snapshot()
with the development version.
Unfortunately, I'm now in a position where I can't test whether
snapshot3d() does not provoke this,
because the basic *3d calls no longer work properly on my desktop
machine. I'm reduced to working on my laptop to
create images for an upcoming talk.
Sorry to take a while to respond on this. I don't see the behaviour
you're describing. I see that rgl.snapshot fails when I use the R-forge
build, but it doesn't affect anything else. (I can guess why
rgl.snapshot fails, but it makes no sense that this would have the side
effects you're seeing.)
A wild guess is that the OpenGL driver on your desktop system has
problems, but those shouldn't persist over a system reboot.
Another guess is that you've got something in your workspace (e.g. an
r3dDefaults variable) and it is causing trouble. But then you should see
Attaching package: 'rgl'
The following object(s) are masked _by_ .GlobalEnv :
r3dDefaults
and you would notice that.
I have put a good build of rgl 0.81.708 online, but I can't see how it
would behave any better than the CRAN 0.81. If you feel like trying
something that probably won't help, download and install
http://www.stats.uwo.ca/faculty/murdoch/temp/rgl_0.81.708.zip
Duncan Murdoch
-Michael
John Fox wrote:
Dear Michael,
I haven't tried rgl.snapshot() in the development version of rgl, so I can't
comment on that, but I believe that these are two unrelated problems. I
think that the version of rgl on CRAN fails to display text when rgl.* and
*3d function calls are mixed, while this works in the development version.
I hope this helps,
John
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On
Behalf Of Michael Friendly
Sent: October-08-08 10:54 AM
To: R-Help
Subject: [R] rgl_081.708: rgl.snapshot fails, causing persistent problems
*Summary*: The latest Windows binary version of rgl_081.708 from
R-Forge has some problem that
causes rgl.snapshot() to fail, at least on my system.
Thereafter, *all* rgl 3D graphics are rendered without any text labels.
The last problem remains even after (a) removing rgl and re-installing
from CRAN, (b) re-starting
with a fresh installation of all of R 2.7.2.
*System*: Win XP Pro
A vexing and persistent problem arose after I installed rgl_081.708 from
R-Forge via
install.packages("rgl",repos="http://R-Forge.R-project.org";)
Everything worked fine until the *first* time I tried to take a
rgl.snapshot() of the current
scene.
> rgl.snapshot("test.png")
[1] "failed"
OK, I did :
remove.packages("rgl")
install.packages("rgl")
to get rgl_081 from CRAN
However, after that, snapshot works, but all rgl.text -- axis labels,
tick labels, plot
annotations, etc. do not appear.
E.g.: see
http://euclid.psych.yorku.ca/SCS/Gallery/Test/iris3d-bad.jpg
produced by:
library(rgl)
data(iris)
col <-c("blue", "green", "red")[iris$Species]
plot3d(iris[,1:3], type="s", size=0.4, col=col, cex=2, box=FALSE,
aspect="iso")
(There should be variable labels and tick labels for the axes.)
I've now tried everything I can think of, *both* with R 2.7.2 and R 2.7.1
- quitting and restarting R
- uninstalling R, and re-installing a fresh copy, with all my old
libraries (rgl_081)
- reboot and power-down/restart
The problem persists, and I don't know what to look for to try to track
this down
and fix it. Some questions:
What might cause this to persist, even after reinstalling R?
Could there be any interaction between rgl.dll and anything else on my
system?
Is anyone brave enough to see if this problem [with rgl_081.708] is
reproducible?
If not reproducible, then it is something on my system. If it is, could
there be
a problem with the build process on R-Forge for building rgl with png
support?
I've contacted the package maintainer, but he has no suggestions.
R> sessionInfo()
R version 2.7.2 (2008-08-25)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] foreign_0.8-29 rgl_0.81 heplots_0.8-0 car_1.2-8
loaded via a namespace (and not attached):
[1] tools_2.7.2
R>
--
Michael Friendly Email: friendly AT yorku DOT ca
Professor, Psychology Dept.
York University Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele Street http://www.math.yorku.ca/SCS/friendly.html
Toronto, ONT M3J 1P3 CANADA
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
