Hello all, Have used legacy fenics for a long time and am finally getting around to porting my utilities over. The team has done a great job! Particularly, I’m trying to build an operator (matrix) which acts on an element of the finite element space and extracts its values at a certain set of loca…

My apologies, I belatedly found this question which I believe resolves my issue. [image] How to construct a sparse matrix used for calculating function values at multiple points dolfinx Hi everyone. Recently, I try to convert my program based on FEniCS 2019 to the new ver…

I would be great if you could post your solution/point out what errors exist in the code above.

Good point, soon I’ll clean up the MWE with the fix.

This is the functional code. There might be some optimizations possible here. Also, I haven’t tested the parallel functionality (I suspect that there’s still work on that end). The docstring cites the relevant sources. from itertools import product import dolfinx from dolfinx import fem, mesh from …

Building operator to extract solution at points, discrepancy?

dolfinx

abhijit-c March 13, 2025, 1:06pm 2

My apologies, I belatedly found this question which I believe resolves my issue.

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Building operator to extract solution at points, discrepancy?

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