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Re: oplot [message #69629 is a reply to message #17728]

Thu, 28 January 2010 15:22

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

bing999 wrote:
> It does not work... It still oplots everything on the last plot...
> I must keep only the "x1save = !x y1save = !y " after the "plot" and
> the "!x = x1save !y = y1save" before the "oplot", thats it?
>
> Are the " ; Master save
> xsave = !x
> ysave = !y"
> and " ; Master restore
> !x = xsave
> !y = ysave "
>
> lines respectively at the beginning and the end of the script are
> useful? Should I add them?

No. You can't do what you originally asked for when the output is PS. In the context of
IDL, there is no way to overplot on a previous page in a PS file. With direct graphics
it's obviously easy (via WSET), but there is no PS equivalent (that I'm aware of).

It might be possible to do what you want in PostScript itself (via some arcane PS command).

The easiest solution would be to restructure your code to output each plot to a different
PS file.

cheers,

paulv

> Thank you for your help!
>
>
>> Hi, thanks for your answers. I should have mentionned that i want to
>> save the plots as .ps then i use :
>>
>> set_plot, 'ps'
>> device, filename='myplots.ps',/color,bits_per_pixel=8
>> ..............................
>> device, /close
>>
>> and what you proposed seems not to work with such environment.
>> Is it possible to arrange that?
>> Thanks!
>>
>>> mgalloy wrote:
>>>> I think you want something like:
>>>> if (i eq 0) then begin
>>>> window, /free
>>>> win1 = !d.window
>>>> plot, x1, y1
>>>> window, /free
>>>> win2 = !d.window
>>>> plot, w1, z1
>>>> ...
>>>> endif else begin
>>>> wset, win1
>>>> oplot, x2, y2
>>>> wset, win2
>>>> plot, w2, z2
>>>> ...
>>>> endelse
>>> And you might want to save the !X and !Y sysvars after each PLOT and then restore then
>>> before each OPLOT for each of the two plots, e.g.
>>> ; Master save
>>> xsave = !x
>>> ysave = !y
>>> if (i eq 0) then begin
>>> window, /free
>>> win1 = !d.window
>>> plot, x1, y1
>>> x1save = !x
>>> y1save = !y
>>> window, /free
>>> win2 = !d.window
>>> plot, w1, z1
>>> x2save = !x
>>> y2save = !y
>>> ...
>>> endif else begin
>>> wset, win1
>>> !x = x1save
>>> !y = y1save
>>> oplot, x2, y2
>>> wset, win2
>>> !x = x2save
>>> !y = y2save
>>> oplot, w2, z2
>>> ...
>>> endelse
>>> ; Master restore
>>> !x = xsave
>>> !y = ysave
>>> Probably overkill, but still...
>>> cheers,
>>> paulv
>>
>

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[Message index]

		oplot By: R.Bauer on Fri, 12 November 1999 00:00
		Re: oplot By: R.Bauer on Tue, 16 November 1999 00:00
		Re: oplot By: fireman on Mon, 15 November 1999 00:00
		Re: oplot By: R.Bauer on Mon, 15 November 1999 00:00
		Re: oplot By: Michael Werger on Mon, 15 November 1999 00:00
		Re: oplot By: Paul Van Delst[1] on Mon, 25 January 2010 10:29
		Re: oplot By: Thibault Garel on Tue, 26 January 2010 01:52
		Re: oplot By: Michael Galloy on Mon, 25 January 2010 09:24
		Re: oplot By: Paul Van Delst[1] on Thu, 28 January 2010 15:22
		Re: oplot By: Gray on Mon, 08 February 2010 21:37
		Re: oplot By: Thibault Garel on Tue, 26 January 2010 04:35
		Re: oplot By: jkeller on Tue, 26 January 2010 03:19

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