[R-sig-Geo] R from cgi and Xvfb

[Don MacQueen]

Have you looked into the GDD package?

-Don

At 11:04 AM +0100 1/16/08, G. Allegri wrote:
>Hi everyone.
>I'm sorry for the question maybe OT.
>I'm trying to use R and Python to run some scripts via web interface.
>I've successfully setup mod_python for Apache and the rpy module.
>R needs X11 to use png() and jpeg() devices, so I have installed Xvfb
>(X virtual framebuffer). I works correctly: if I set the DISPLAY
>variable to point to this X server, rpy can create png files correctly
>from command-line, but it doesn't work when the python script is run
>from web browser.
>I restarted Apache after setting the DISPLAY variable, but the
>Traceback gives me always the same error, about being not able to open
>the X11 device?
>
>Does anyone have made it work right?
>How can tell Apache to run R script and forwarding X requests to my Xvfb.
>
>Thanks,
>Giovanni
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062