| Re: Plotting results from z-buffer are diffrenet than xwindow. [message #89019 is a reply to message #89018] |
Tue, 15 July 2014 11:57   |
jlpippitt
Messages: 5
Registered: July 2014
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Junior Member |
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On Tuesday, July 15, 2014 10:13:09 AM UTC-4, David Fanning wrote:
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>> Z buffer seems to be enhancing our plots of radar imagery. Plotting in the x-window gives us the correct result. We produce a lot of imagery so using Z-buffer is necessary. Is there a away to make a z_buffer image appear the same as an x window image.
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> The Z-buffer uses a slightly different character size than the normal
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> display device. And, unfortunately, this affects things like the plot
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> margins and regions, which are expressed in character size units. To
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> make sure everything "aligns", you have to make sure you position your
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> graphics with the POSITION keyword. Otherwise, you won't be able to
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> align them with your images, etc.
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> Almost all of this is done for you, if you were to use Coyote Graphics
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> routines to display your data. :-)
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> Cheers,
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> David
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> --
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> David Fanning, Ph.D.
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> Fanning Software Consulting, Inc.
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> Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
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> Sepore ma de ni thue. ("Perhaps thou speakest truth.")
David,
Thank you for your response. I think z-buffer is applying some kind of smoothing to the data. Holes appear in a precipitation field in the x-window (which is the true representation of the data) while the images created with z-buffer the holes are filled in (maybe nearest pixel smoothing). I think it would be beneficial to see the images I am referring to. Is there a way to post images on here?
Thank you,
Jason
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