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jlang
USA
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 Posted - 05/11/2004 : 4:46:58 PM
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Basically, I need construct a sphere surface from a set of (X, Y, Z) values. Is it possible to do it with origin? If not, what software you know of have such power?
As always, any help would be greatly appreciated.
-jlang |
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Mike Buess
USA
3037 Posts |
Posted - 05/11/2004 : 5:57:06 PM
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This has been discussed before in the forum. You might start here.
Mike Buess
Origin WebRing Member |
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jlang
USA
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Posted - 05/11/2004 : 7:18:19 PM
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Mike, thanks so much for the insight.
Unfortunately, it doesn't work in my situaction because rather than making a smooth spherical surface, what I need is uneven surface. Besides, I'm getting the surface out of experimental data, all I have is (X,Y,Z) values. The X's and Y's are not evenly spaced so it doesn't automatically fit in a matrix.
Is it possible to do with origin?
jlang
poor graduate student |
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Mike
USA
357 Posts |
Posted - 05/12/2004 : 08:58:14 AM
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Hi jlang:
Origin does not support plotting multiple Z values for a given XY pair. That said, there is a way to do this, but it has its limitations.
I am quoting here from the Origin Help file:
quote:
Displaying Multiple 3D Surfaces or a 3D Surface and Multiple 3D Scatter Data Plots
Origin allows you to plot two surfaces or one surface and multiple 3D scatter data plots in the same graph layer using the Layer n dialog box. However, when you combine these data plots in a layer, Origin does not perform any calculations concerning the intersections of the data plots, and thus no information can be inferred by any visual indication of an intersection.
For example, while it is possible to display two surfaces in a surface plot, Origin simply draws one surface and then draws the second surface as if the first one didn't exist. Thus, you can create two hemispheres (from two matrices) and have them draw in the correct sequence so as to appear like a complete sphere, but rotation of this figure may produce a visually confusing image.
So, this can be done and your nonlinear X and Y value spacing should not be a problem, but it is hard to say whether the result will satisfy you. My advice would be to give it a try and see what you get.
Mike
OriginLab
Edited by - Mike on 05/12/2004 08:59:19 AM |
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Drawing an uneven sphere surface, possible?