Hey guys. Suppose I have an interval mesh from (0,1) and u is the solution created on the mesh. I need to get the value on a point, such as on 0.25 in (0,1) of the solution u. I find some functions such as get_local, array() (which seems to be no longer supported) I am using fenics2018 version. Is…

If you are using dolfin version 2018.1.0, then u = Function(V) print(u.vector().get_local()) is supported. If your point does not match a mesh vertex, you need to call the function eval function, i.e. print(u(Point(0.25))) to get the solution at that point.

How to get nemrical solution value for a given point?

General

belmont May 26, 2023, 12:05pm 7

Maybe this discussion would help

Topic		Replies	Views
Calculate the value of a solution on mesh points or in any point General	4	1618	September 11, 2023
Evaluation of solution at a specific point General	2	54	March 10, 2025
Evaluating Finite Element Function General	12	742	March 31, 2025
Evaluating at arbitrary points dolfinx	2	577	January 1, 2024
Evaluate function on whole mesh General	2	315	October 11, 2023

How to get nemrical solution value for a given point?

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