| Re: PostScript output and Aspect [message #82223] |
Thu, 29 November 2012 16:33  |
JP
Messages: 55
Registered: April 2008
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Member |
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Cool! Thanks!
On Friday, 30 November 2012 10:45:28 UTC+11, David Fanning wrote:
> JP writes:
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>
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>> I am trying to get a series of multiple plots using PS_Start and PS_End and can't get the settings right.
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>> With cgWindow I can get my plots nicely on the screen and even muck around with the aspect ratio and finally save a PNG (not so interested in PostScript actually).
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>> For example:
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>>
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>> cgWindow, wMulti=[0,3,1], wxsize=1000, wySize=300
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>> cgPlot, randomn(seed, 100), /window, /addcmd
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>> cgPlot, randomn(seed, 100), /window, /addcmd
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>> cgPlot, randomn(seed, 100), /window, /addcmd
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>>
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>> then I save to PNG using the Save Window As > Raster Image via ImageMagick > PNG option and I get what i want. BUT apparently the resize option in ImageMagick left to the default 0.5 and my PNG is a bit blur. (David, would be nice if there was an option to change that default).
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> There are all KINDS of options to change the defaults! See the
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> 100 or so keywords to cgControl or cgWindow_SetDefs. ;-)
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>
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>>
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>> So I try with:
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>> PS_Start, 'myImage.png'
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>> !P.Multi=[0,3,1]
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>> cgPlot, randomn(seed, 100)
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>> cgPlot, randomn(seed, 100)
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>> cgPlot, randomn(seed, 100)
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>> PS_End, /PNG, Resize=100
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>>
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>> Now I get rid of the blur in the PNG but the Aspect of my final plots has changed from what i wanted. I tried to play with the settings using the /GUI option but still can't get it right... Am I missing something very obvious?
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> Use cgDisplay to set up your "display window". If you
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> are using an actual display, it will create a window
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> with that aspect ratio. If you are in PostScript, it
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> will create a PostScript window with that aspect ratio:
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> ps_start
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> cgDisplay, 1000, 300
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> ...
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> ps_end, /png
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> Cheers,
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>
>
> David
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> --
>
> David Fanning, Ph.D.
>
> Fanning Software Consulting, Inc.
>
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
>
> Sepore ma de ni thue. ("Perhaps thos speakest truth.")
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