Fred,
I took a look at the VI you had attached an noticed that your Z matrix only had 1 dimension of data therefore your data will only be points, which it is. Is there any particular reason you are only sending 1D of data to the z matrix?? Second thing I noticed was just the inherent difference between parametric plots and 3D surface plots. The big difference here is that you input relations to surfaces for x,y,and z for the parametric while the 3D surface really only uses z for relative surfaces and the y and x array as skews for the plot. Basically I think you need to figure out the difference in what the plot shows and not try to directly transfer one to the other. The math behind it can be confusing and while looking at a parametric plot it might seem simple to make a surface plot out of it, it is arithmetically hard to do. Look into the issue a little more and let us know what you find, I would be interested to know, given that I am a math nut, but not in 4D space.
Tyler Heikes
Applications Engineer
National Instruments
