[R] rgl_081.708: rgl.snapshot fails, causing persistent problems
friendly at yorku.ca
Wed Oct 8 16:54:24 CEST 2008
*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
Everything worked fine until the *first* time I tried to take a
rgl.snapshot() of the current
OK, I did :
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.
col <-c("blue", "green", "red")[iris$Species]
plot3d(iris[,1:3], type="s", size=0.4, col=col, cex=2, box=FALSE,
(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
- reboot and power-down/restart
The problem persists, and I don't know what to look for to try to track
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
Is anyone brave enough to see if this problem [with rgl_081.708] is
If not reproducible, then it is something on my system. If it is, could
a problem with the build process on R-Forge for building rgl with png
I've contacted the package maintainer, but he has no suggestions.
R version 2.7.2 (2008-08-25)
attached base packages:
 stats graphics grDevices utils datasets methods base
other attached packages:
 foreign_0.8-29 rgl_0.81 heplots_0.8-0 car_1.2-8
loaded via a namespace (and not attached):
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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