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Re: Setting ranges on surfaces [message #12861 is a reply to message #12845]

Thu, 17 September 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Mirko Vukovic (mirko_vukovic@notes.mrc.sony.com) writes in
response to an article by Richard Hunt about restricting
the range of the surface display:

> The only way I could get around that feature is to do a surface plot of:
> (z>zmin)<zmax

Good answer, but to the wrong question I'm afraid. It is
not really the Z data we want to clip, it is the X and Y
*locations* of the Z data. This implies (and, frankly, this
is probably why the [XY]Range keywords don't work) that
the Z data is tied to the X and Y range vectors. I'm guessing
that in fact the Z data has nothing to do with those vectors,
but exist independently of them. That is why changing the
XRange definitely affects the X axis, but not the surface
plot itself. In fact, IDL doesn't care what *values* you
put in the X axis vector, only that it has as many elements
as the X dimension of the Z data. The scaling of the axes
and the Z data must exist totally independently of one
another.

Cheers,

David

----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
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[Message index]

		Re: Setting ranges on surfaces By: davidf on Fri, 18 September 1998 00:00
		Re: Setting ranges on surfaces By: Martin Schultz on Fri, 18 September 1998 00:00
		Re: Setting ranges on surfaces By: davidf on Thu, 17 September 1998 00:00
		Re: Setting ranges on surfaces By: mirko_vukovic on Thu, 17 September 1998 00:00
		Re: Setting ranges on surfaces By: davidf on Wed, 16 September 1998 00:00
		Re: Setting ranges on surfaces By: Alexander Proussevitc on Wed, 16 September 1998 00:00
		Re: Setting ranges on surfaces By: davidf on Wed, 16 September 1998 00:00

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