from dolfin import * import numpy as np mesh = UnitSquareMesh(1,1) V = VectorFunctionSpace(mesh, "CG", 1) u = Function(V) u.interpolate(Expression(("3*x[0]", "2*x[1]"), degree=1)) element = V.element() dofmap = V.dofmap() for cell in cells(mesh): print(element.tabulate_dof_coordinates(cell)) …

The function u has 8 dofs, 2 at each vertex of the mesh. As you can see by the cell dof coordinates (each cell has 6 dofs), they are ordered as (dof_(0,x), dof_(1,x), dof_(2,x), dof_(0,y), dof_(1,y), dof_(2,y)) where the first index corresponds to the local ordering of the vertex of the cell. the…

sir, I read these syntax on Discourse but i didn’t understand the meaning of the syntax given below: with u_b.vector.localForm() as loc: what is the usuage of this command. u_bc = dolfinx.Function(V) with u_bc.vector.localForm() as loc: loc.setValues(bc_dofs, np.full(len(bc_dofs), 0)) bc = dol…

Unable to understand the syntax

General

nate November 5, 2022, 4:15pm 4

See L.zeroEntries() VS loc_L.set(0) - #2 by nate

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Unable to understand the syntax

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