On 11/01/2016 5:39 PM, Wittner, Ben, Ph.D. wrote:
The problem discussed below was fixed on my computer with much help from Tom
Callaway, of RedHat.
My computer has an NVIDIA graphics card and CentOS 7 comes with an open-source
driver for NVIDIA graphic cards called nouveau. When I replaced the nouveau
driver with a driver from NVIDIA, the problem went away.
To see whether your machine has an NVIDIA graphics card, execute the command
lspci -v
and search in the output for VGA. The top of that block of output will tell you
what graphics card you have and the last line of the block will tell you what
driver is in use.
In my case the top of that block of output was the following:
07:00.0 VGA compatible controller: NVIDIA Corporation G84GL [Quadro FX 370]
(rev a1)
So I knew I had an NVIDIA graphics card and that the model was Quadro FX 370,
which was important when trying to determine which driver to download from
http://www.nvidia.com/object/unix.html .
After downloading the driver, I was not able to get it installed just using the
instructions from the NVIDIA download page. The key for me was to follow the
instructions in http://www.dedoimedo.com/computers/centos-7-nvidia.html .
Thanks for following up on this. If I get any other similar reports,
I'll be able to point them to your message.
Duncan Murdoch
Good luck!
-Ben
-----Original Message-----
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Wittner, Ben,
Ph.D.
Sent: Friday, January 08, 2016 4:13 PM
To: r-help@r-project.org
Subject: [R] rgl.snapshot only captures a small portion what's visible in the
RGL device window on CentOS 7
Hello,
As an example, I ran the following code:
library("rgl")
example(plot3d)
rgl.snapshot("test.png")
The full plot is visible in the window titled RGL device 1 [Focus], but only a
small portion of the upper left part of the plot is visible in test.png (see
attached test.png, if the list server attaches it. Otherwise, email me if you
like and I'll send it directly to you.)
The output of sessionInfo() is as follows:
R version 3.2.3 (2015-12-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: CentOS Linux 7 (Core)
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C
[3] LC_TIME=en_US.utf8 LC_COLLATE=en_US.utf8
[5] LC_MONETARY=en_US.utf8 LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rgl_0.95.1441
loaded via a namespace (and not attached):
[1] tools_3.2.3
In addition to the CentOS 7 machine, I have a CentOS 5.3 machine, which has R
3.0.2 and rgl 0.93.996. I tried the code above on it and it captured the full
window in the output of rgl.snapshot (i.e., it worked properly).
To see whether the difference could be attributed to the CentOS version or the
R/rgl version, I put R 3.0.2 with rgl 0.93.996 on the CentOS 7 machine and ran
the code above. As with the earlier CentOS 7 run, only a small portion of the
plot was visible in the output of rgl.snapshot. So it seems the difference is
due to a difference in the CentOS versions and not the R/rgl versions.
Thanks in advance for any help.
-Ben
The information in this e-mail is intended only for the ...{{dropped:11}}
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