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| Re: image scaling with object graphics [message #14456 is a reply to message #14450] |
Wed, 03 March 1999 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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PabloMason (pablomason@aol.com) writes:
> Is there any way to scale an image (using object graphics) where you can
> specify whether to use bi-linear interpolation or pixel replication?
I don't think so. At least not in the way I think you
mean when you ask the question. I haven't fooled with
this, but you might be able to simulate pixel replication
by a judicious choice of your arbitrary coordinate system.
That is, if you made your coordinate system 512 by 512 units
and you had a 256-by-256 image, you might get what appears
to be pixel replication. Worth a try.
> Which way is "oModel -> Scale (dx, dy, dz)"
> zooming?
This is a trick question. What are the values of dx, dy
and dz? :-)
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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