2D interpolation in Labview 8.5

Hi everyone,
I am using the 2D interpolation routine in LabView 8.5, with the bicubic mode. Before using that I wrote my own routine to do the bicubic interpolation and I used an algorithm I found on the web. As the results I obtain from the two routines are different, I think that the weighting functions used in the Labview routine are different from the ones I used. Does someone know the algorithm used to implement the 2D interpolation function in LabView 8.5?

According to the LabVIEW help, LabVIEW uses an algorithm from "Numerical Recipes in C". Chapter 3 is available free online, so try the link and browse to chapter 3.6.
What are you using and how do the results differ? Is the difference significant?
LabVIEW Champion . Do more with less code and in less time .

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> This is using the colorramp associated with the intensity graph, but
> it's also true of the basic colorramp in Controls->CLassic->Numeric.
> The colorboxes change color, but the ramp itself remains the default
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>
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I want to know the algorithm of interpolation of 2-D array in LabVIEW.

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Hi,
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Attachments:
Ip.vi ‏15 KB

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Hello everybody,
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Looks like a LabVIEW graph In any case, I'd try to generate a new array without NANs which then can be used for all possible interpolation functions such as SPInterp, PolyInterp ...

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(Sorry, posting by phone)
1- search the forum or help for bilinear interpolation.
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LabVIEW Champion . Do more with less code and in less time .

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I have already told you the solution: use the lookup table Express VI (which is implemented as a memory block). Why does this not work for you?
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2D interpolation in Labview 8.5

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