making 2D contour plots in a 3D viewing space

I was wondering if there's an easy way to use the basic contouring programs
(e.g., CPEZCT) with 3D viewing perspectives, as opposed to just  
viewing xy plots from the "top" viewing position.  I've been doing this in a
very awkward way, using SET3, and SRFACE (i.e., I fake SRFACE into  
plotting a contour plot confined to the xy plane by turning off the plotting  
of lines of constant x and y on the 3D surface, and also by scaling  
the range of values that define the extent to which a 3D surface  
stretches vertically)--a real pain!  There has to be an easier way  
(assuming there is, I'm embarrassed to be doing things the way I  
just described).  E.g., it would seem like one could just define a  
3D eye position but then use the CONPACK routines virtually as-is.   I cannot
figure out how to do this, however.  (I'd also like to be able to later
overlay 3D lines in the same user-defined space using something like
CURVE3.  I don't know if this added request affects how one goes about doing
the former.)  I'd be grateful for any insight!  Thanks in advance!

Paul

P.S. Actually, for those familiar with Ming Xue's zxplot, there's a  
fairly easy way to do this therein (see example 8 at
<http://www.caps.ou.edu/ZXPLOT/ZXPLOTdoc.html#12.%20EXAMPLES>), but one  
cannot overlay a 3D line.  What I'm trying to ask (in case I'm not  being very
clear) is how to do something like the aforementioned example in ncar
graphics, but so that I also can overlay 3D lines in the same 3D space.
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Received on Thu May 03 2007 - 07:48:39 MDT