| Multiple Plots in PostScript [message #67143] |
Mon, 06 July 2009 14:11 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
Here is a tip about plotting multiple plots in PostScript
that cost me a couple of hours this morning. I am plotting
six plots to a page (three columns and two rows), and I have
anywhere from 2-3 pages of PostScript output, all in PostScript
landscape mode. I was trying to save a little room at the
top of my PostScript page for a plot title, so I was using
!Y.OMargin = [2,6] to set that up.
Initially, I was setting up !P.Multi and !Y.OMargin before
I changed to the PostScript device.
!P.Multi=[0,3,2]
!Y.OMargin = [2, 6]
PS_Start, ...
... plots...
PS_End
My plots were now running off the *left* side of the page.
Weird. I tried !X.OMargin instead. Still running of the
left side of the page. Too weird!
Finally, I moved the !P.Multi and !Y.OMargin
commands to *after* I entered the PostScript
device.
PS_Start, ...
!P.Multi=[0,3,2]
!Y.OMargin = [2, 6]
... plots...
PS_End
Better. At least the *first* page of PostScript output
was correct, but subsequent pages were NOT correct, in
that they had no Y margins at all.
Eventually, I discovered that I had to set !Y.OMargin before
*every page* of PostScript output, or it would not take effect.
I have *no* idea why this would be the case. I'm only
reporting what I have observed this morning. :-)
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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