linterp help

#1 Опубликовано: 17.01.2024 10:19:48

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I'm pretty sure it's possible and saw it somewhere here. How do I put this in a single matrix, along with the descriptors like "roof angle, "1", "2E",...etc. and use it for interpolation. Well I can get by using a single column matrix as a work around but I guess I want a more compact looking solution, if that makes sense.

#2 Опубликовано: 17.01.2024 16:00:11

overlord

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Look for InterpBilinear() function.
You can find more info in Reference Book.

Regards

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#3 Опубликовано: 17.01.2024 16:03:13

GFDIntano

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ohh didn't know about that. big thanks.

#4 Опубликовано: 17.01.2024 18:02:20

Jean Giraud

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Surface plot is especially coded for your request.
Jean

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#5 Опубликовано: 17.01.2024 20:45:37

overlord

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Using linterp() with a function is another way.
Function selects column according to input.

Regards

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#6 Опубликовано: 18.01.2024 10:10:49

GFDIntano

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I'm quite satisfied with the InterpBilinear function. I'm exploring Jean's and overlord's additional suggestion but still it was already solved for me. Another question is that would that still work if I had to do interpolation in both the column values and row values such as in case below.

From what I understand, InterBilinear() seems incapable of doing what I aim to do. Do you have any suggestions?

#7 Опубликовано: 18.01.2024 18:37:38

Martin Kraska

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Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx

#8 Опубликовано: 18.01.2024 19:10:51

Jean Giraud

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Wrote
From what I understand, InterBilinear() seems incapable of doing what I aim to do. Do you have any suggestions ?

If, I understand your request,
ForLoop algo style will do ... last example page 10.
Jean

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#9 Опубликовано: 18.01.2024 20:25:30

overlord

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Wrote
From what I understand, InterBilinear() seems incapable of doing what I aim to do. Do you have any suggestions?

On the contrary, InterpBilinear() does exactly what you seek.
It interpolates both row and column values.
PS: I added extra values to accommodate ≤ and ≥ boundaries.

Regards

#10 Опубликовано: 20.01.2024 04:15:39

Jean Giraud

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Wrote
I want a more compact looking solution, if that makes sense.

Visit Samples for bidirectional interpolating Matrix.
Jean

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