interpolatesolution is giving NaN results
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Hello,
I am trying to solve a Laplace equation over a rectangular domain using the FEA tool in Matlab. The solution is okay, but I wanted to interpolate the result over a very dense regular grid using the command interpolateSolution. The problem is, interpolated result is showing NaN values evenif the point is inside the region. I have attached two figures here. The first one is for the PDE solution and there is no white spot. .
The second one is the interpolated value, and as it is seen easily there are white spot that correspond to the NaN values.
Why the interpolation is giving NaN values? How I can solve this issue?
Thank you.
Khalid
댓글 수: 2
KSSV
2020년 8월 4일
Image is not attached....What function did you try for interpolation? Read about fillmissing.
Ravi Kumar
2020년 8월 5일
That seems odd, you should not get NaN if your points are within the goemetry. What version of MATLAB are you using. Also try if you get the same issue if you change the mesh order from linear to quadratic and vice versa. You might also try reducing the mesh density. If you can provide repro code that would help debug the issue.
Regards,
Ravi
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