How to display a very small surface in 3D Graph ?

[ggsyx]

Hi,everyone!

I need to draw a very small surface and display it in 3D Graph.

However, I found it can't display the complete surface while the size is small.

And it even doesn't display the surfaces (just lines) when the size is smaller than 0.001.

How can it display the complete surface？

[pincpanter]

I tried all kind of variations. No luck.

The only way I found is the obvious subtraction of a constant, in order to enhance the range to full scale ratio.

Pretty ugly of course.

[Bob_Schor]

Well, we have no idea what you tried to do (you failed to attach your LabVIEW code (please don't waste our time attaching a picture of your code, but attach the actual VI or VIs), nor did you attach a file of your data (so we can understand what you mean by "a very small surface").

Have you thought of the simple expedient of scaling your data, i.e. multipling everything by 1000 (or some suitable factor, again without knowing the data, I'm just throwing out Wild Guesses)?

Bob Schor

[pincpanter]

Bob, he did attach an example, at the end of the message (for anyone wishing to open it: values in the selection Ring don't match the displayed text).

About the "small surface", it seems that the problem arises when the span in either X or Y is small compared to the absolute values.

So, not small, but instead exceedingly flat in X or Y independently.

[ggsyx]

YES, you are right ! Not "small" but "low rate of change". Thank you for your help !  

[ggsyx]

Sorry, my English is not good. Pincpanter describes the problem clearly.

If multipling everything by 1000(but the rate of change is very small)，this problem still occurs.

[altenbach]

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@ggsyx wrote:

Sorry, my English is not good. Pincpanter describes the problem clearly.

If multipling everything by 1000(but the rate of change is very small)，this problem still occurs.

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My guess it is the small relative change. Instead of multiplying, subtract the average, for example.