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interpolation for 2d data

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Old   July 27, 2022, 09:03
Default interpolation for 2d data
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hosein
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'x','y' and 'u' are 2D matrices for the x-coordinate, y-coordinate, and velocity of each node of the below mesh (figure). and I want to interpolate for (x_q,y_q) to find u_q for an arbitrary point(q).
Screenshot 2022-07-27 133131.jpg

My mesh is not rectangular and "interp2" error is: "Input grid is not a valid MESHGRID".

Any Ideal what can I do?
Thanks.
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