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Re: Z-Buffer [message #17439 is a reply to message #6727]

Wed, 27 October 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Haje Korth (hkorth@lanl.gov) writes:

> Is it possible to use the Z-Buffer device and still get decent output
> quality for characters when an image of the buffer (tvrd) is dumped to
> the Postscript device. Basically I want to use the Z-Buffer image with
> axes rendered in Postscript. Is this possible, or do I ask for too much
> here?

All things are "possible" in IDL, and sometimes they
are even "likely", if you know what you are doing. :-)

I've certainly done what you are attempting many times.
But I should warn you about one little peculiarity in
IDL that will absolutely drive you crazy! The character
size in the Z-graphics buffer is just *slightly* different
from the character size on your display. So aligning
axes with data can be an exercise in total frustration
is you are as anally-retentive about how things look as
I am.

I've learned that *anytime* I try to combine
Z-buffer graphics with regular graphics what it is
absolutely critical to set the Charsize=1.0 keyword
for *ALL* graphics commands carried out in the 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/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		z-buffer By: sjang on Mon, 05 August 1996 00:00
		Re: Z-Buffer By: sigut on Thu, 13 February 1997 00:00
		Re: Z-Buffer By: J.D. Smith on Wed, 12 February 1997 00:00
		Re: Z-Buffer By: sigut on Wed, 12 February 1997 00:00
		Re: Z-Buffer By: Robert.M.Candey on Tue, 11 February 1997 00:00
		Re: Z-Buffer By: davidf on Tue, 11 February 1997 00:00
		Re: Z-Buffer By: savoie on Tue, 11 February 1997 00:00
		Re: Z-Buffer By: davidf on Mon, 10 February 1997 00:00
		Re: Z-Buffer By: davidf on Wed, 27 October 1999 00:00

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