| Re: Producing graphics without screen display [message #5514] |
Tue, 16 January 1996 00:00 |
M.Reuss
Messages: 4
Registered: January 1996
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Junior Member |
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The SET_PLOT routine determines the output device.
If you want to create a PostScript file, simply call
SET_PLOT,'PS'
and all graphics output will be written to the file 'idl.ps'
in your default directory instead of to the screen.
After you have finished your plot, make sure to call
DEVICE,/close
in order to close the file. Then you can send it to the printer.
Moreover, you can do lots of modifications to the PostScript output
using the DEVICE routine. The keywords of this routine are very
different for PostScript than for screen output.
All this should be documented in the IDL Reference Guide.
Yours
Matthias Reuss
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| Re: Producing graphics without screen display [message #5517 is a reply to message #5514] |
Tue, 16 January 1996 00:00  |
M.W.Gardner
Messages: 7
Registered: November 1995
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Junior Member |
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Gras Regis <gras@cepax2.observ-gr.fr> wrote:
>
> Is there a way to produce graphics (e.g. in postscript) without displaying
> anything on the screen?
>
Yes! if you use the set_plot command this redirects graphic output to the
specified driver. If you have a program and wish to direct output to a
postscript file then do the following :
> set_plot,'ps'
> device,filename='out.ps'
Subsequent output goes to the postscript file out.ps. See the 'device' manual
page for further options regarding orientation and size. When you have
finished plotting you must then close the file
> device,/close
and reset the output to normal (eg. x windows)
> set_plot,'x'
All the above commands can be incorporated into your program - however I find
that I need a separate graphics routine to reproduce exactly what you see on
the screen in the postscript format - one (of many?) quirks of IDL !
Hope that helps
Matt
--
-----> Matt Gardner EMAIL->m.W.gardner@uea.ac.uk PHONE->+44- 1603-592041
School of Environmental Science,University of East Anglia,Norwich,NR4 7TJ,UK
------------------------------------------------------------ ------------------
opinions are mine - http://www.uea.ac.uk/~e449
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| Re: Producing graphics without screen display [message #5524 is a reply to message #5514] |
Tue, 16 January 1996 00:00 |
hahn
Messages: 108
Registered: November 1993
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Senior Member |
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Gras Regis <gras@cepax2.observ-gr.fr> wrote:
> Is there a way to produce graphics (e.g. in postscript) without displaying
> anything on the screen?
You forgot to mention what operating system you are using: IDL uses
enviroment variables on Unix and VMS and checks for "IDL_DEVICE".
If found it passes that string as parameter to SET_PLOT.
Example:
setenv IDL_DEVICE ps
or
export IDL_DEVICE=ps
If don't know if IDL for Windows behaves the same or searches the
ini-file.
Nevertheless IDL will print some lines into the log file which is
usually allocated to the screen. I haven't found a "quiet" option
to suppress that. Is there such a feature?
> Sincerely yours.
> *----------------------------------------------------------- ----------------*
> * Regis Gras | Tel (33) 76 82 62 60 *
> * Laboratoire CEPHAG | ou (33) 76 82 64 26 *
> * ENSIEG, Rue de la Houille Blanche BP 46 | Fax (33) 76 82 63 84 *
> * 38402 Saint Martin d'Heres CEDEX, France | e-mail gras@cephag.observ-gr.fr*
> *----------------------------------------------------------- ----------------*
Norbert Hahn
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