In the below MWE, I have unit square mesh with two elements. The four nodes of the mesh have the coordinates [[0. 0.] [1. 0.] [0. 1.] [1. 1.]] I want to define a function that assigns vectors to each of the nodes. For example, if B = [ [1.0, 5.0], [7.0, 1.0], [9.0, 10.0], [13.0, 5.0] ]…

Consider the following MWE: from dolfin import * import numpy as np mesh = UnitSquareMesh(1, 1) mesh_coords = mesh.coordinates() V = VectorFunctionSpace(mesh, 'CG', 1) u = Function(V) # Introducing a function u on the vector function space v2d = np.array(vertex_to_dof_map(V), dtype = int) B =…

Hi @dokken , I went through the post that you suggested but couldn’t exactly figure out what you were suggesting. My apologies if it were a trivial thing that I couldn’t figure out. So I tried the following: mesh = UnitSquareMesh(1, 1) mesh_coords = mesh.coordinates() V = VectorFunctionSpace(me…

Problem with assigning vectors to nodes in a mesh

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dokken April 22, 2022, 5:24am 2

See: Mapping from mesh.coordinates() to u.vector() - #2 by dokken

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Problem with assigning vectors to nodes in a mesh

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