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Re: Postscript Output [message #18735 is a reply to message #7108]

Mon, 31 January 2000 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Ingo (ingo.meisel@stud.uni-karlsruhe.de) writes:

> I'm trying to export the contents of an IDL graphics window to a
> postscript file. This is the IDL code I've been using so far in a
> subroutine:
>
> set_plot,'PS'
>
> device, /color, file='file.ps'
>
> tv,image ;the variable image contains the pixel raster to store
>
> device, /close
>
> A postscript file is generated, however, the page is empty.
> What is wrong? Who can help me?

The page is empty!? I would have expected lousy output,
given the way you have configured the PostScript device,
but I wouldn't have expected the page to be empty.
I'm going to guess your image data isn't scaled into
256 values. Try something like this:

thisDevice = !D.Name
Set_Plot, 'PS'
Device, Color=1, Bits_per_Pixel=8, File='image.ps'
TV, BytScl(image)
Device, /Close_File
Set_Plot, thisDevice

You might also want to have a look at the Producing Perfect
PostScript Output section of my IDL Programming Tips
page for a number of other PostScript tips.

http://www.dfanning.com/documents/tips.html#PostScript

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Postscript output By: Richard Townsend on Wed, 02 October 1996 00:00
		Re: Postscript output By: davidf on Sat, 05 October 1996 00:00
		Re: Postscript output By: davidf on Fri, 02 April 1999 00:00
		Re: Postscript Output By: Liam E. Gumley on Mon, 31 January 2000 00:00
		Re: Postscript Output By: Liam E. Gumley on Mon, 31 January 2000 00:00
		Re: Postscript Output By: davidf on Mon, 31 January 2000 00:00
		Re: postscript output By: David Fanning on Wed, 06 July 2011 08:58

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