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Re: Write graphics to two devices simultaneously? [message #66061 is a reply to message #66059]

Sat, 11 April 2009 11:08

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

stefan5465@hotmail.com writes:

> Is there any way to print to an X11 window and simultaneously dump the
> X11 output to a postscript file?
>
> Of course, I could just copy paste the plot information for a new
> device, but it would make the procedure annoyingly long. Is there a
> command to take the contents of an X11 device and save it to the
> postscript device, or a command to write to postscript at the same
> time as X11?

It is not possible to write to two graphics devices at
the same time. But, well-written IDL graphics programs
don't much care what device they are being written to,
which allows you to use something like PS_START/PS_END
to write them to PostScript files simply:

Consider displaying a histogram of an image, using HISTOPLOT:

; An image.
image = LoadData(7)

; Write to display.
Histoplot, image, /FILL, POLYCOLOR='rose'

; Write to PostScript file.
PS_START
Histoplot, image, /FILL, POLYCOLOR='rose'
PS_END

Such commands work on Windows, LINUX, and Macintosh computers,
and for Z-buffer and PRINTER devices, etc.

Programs to help with this are found in the Coyote Library:

http://www.dfanning.com/programs/coyoteprograms.zip

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Write graphics to two devices simultaneously? By: stefan5465 on Mon, 13 April 2009 08:18
		Re: Write graphics to two devices simultaneously? By: stefan5465 on Mon, 13 April 2009 08:13
		Re: Write graphics to two devices simultaneously? By: David Fanning on Sun, 12 April 2009 09:59
		Re: Write graphics to two devices simultaneously? By: stefan5465 on Sun, 12 April 2009 09:43
		Re: Write graphics to two devices simultaneously? By: Jeremy Bailin on Sun, 12 April 2009 08:51
		Re: Write graphics to two devices simultaneously? By: David Fanning on Sat, 11 April 2009 11:08

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