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MathGroup Archive 2006

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Re: Exporting plots with the kernel

  • To: mathgroup at smc.vnet.net
  • Subject: [mg65333] Re: Exporting plots with the kernel
  • From: Peter Pein <petsie at dordos.net>
  • Date: Mon, 27 Mar 2006 06:55:58 -0500 (EST)
  • References: <dvbikn$i61$1@smc.vnet.net> <e05rno$3t0$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

kalymereau at yahoo.fr schrieb:
> Actually I have just discovered that, independently of font problems,
> when running Mathematica in a command-line way (i.e. just the kernel)
> it is not possible to export a plot to a file in any graphical format
> if there is no X-server running ! Only the FrontEnd seems to know how
> to export a plot.
> 
> This is really a strange behavior ! Even with Postscript it doesn't
> work. For example
> Display["plot.eps",myPlot,"EPS"] produces an error if there is no
> X-server (the same with Export). I can use Display["plot.eps",myPlot]
> to produce a file that seems to be in Mathematica specific Postscript
> language, but then this file cannot be read with standard Postscript
> viewers. Is there a way to translate this file to a more standard
> format ?
> 
> I know that I can produce the numerical data with the kernel, and then
> read it and plot it with the FrontEnd. But I am talking about the
> result of quite long calculations, and I would like to check the output
> quickly with a plot without having to launch the FrontEnd. Also I am
> often out of office, and I have to run batch  jobs on my office
> machines: in such a situation I want the plots without being obliged to
> have access to a local Mathematica FrontEnd.
> 
> Thanks for any suggestion that would help me to bypass this severe
> limitation of the kernel.
> 
Salut,

with Mathematica 5.1 for Windows,

Plot[Sin[x],{x,-Pi,Pi}]
Export["test.png",%,"PNG"]

works as expected. I'll try it with Mathematica 5.2 for Linux and will send a message iff this fails.

Peter


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