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Re: Multiple surface plotting [message #25284 is a reply to message #25283]

Wed, 30 May 2001 13:02

davidf
Messages: 2866
Registered: September 1996

Senior Member

Paul van Delst (paul.vandelst@noaa.gov) writes:

> I want to plot out a number of intersecting surfaces, different colours, some shaded, some gridded.
> After some inquiries, I was lead to Struan Gray's excellent web page and once I figured out how to
> use the Z-buffer, I had great looking plots of exactly what I wanted .... onscreen (or in a web
> page).
>
> When I output to a file using the recommended TVRD() from z-buffer and then tv'ing after a
> set_plot,'PS', or writing the tvrd() result to a png file is a result that looks quite awful when
> printed.
>
> What I would dearly love to do would be to create postscript output directly rather than doing a
> TVRD() of the z-buffer and then tv'ing it to PS output. Does anyone know if this is possible and if
> so, how? All the z-buffer exmaples I've seen use TVRD() and TV for output.

Well, here are two suggestions:

(1) That Z-buffer can be made pretty darn big. Big enough,
probably, so that you could make nice PostScript output.

(2) Do the same thing in object graphics. The object graphics
system *is* a Z-buffer!

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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[Message index]

		Re: Multiple surface plotting By: Dick Jackson on Thu, 31 May 2001 08:43
		Re: Multiple surface plotting By: m.hadfield on Wed, 30 May 2001 15:32
		Re: Multiple surface plotting By: Paul van Delst on Wed, 30 May 2001 14:18
		Re: Multiple surface plotting By: davidf on Wed, 30 May 2001 13:02

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