mesh_test

mesh_test, a FENICS script which investigates some simple uses of the mesh objects and the various function calls that create them.

Finite element calculations begin by creating a discretized model of the geometry of a region. FENICS supplies a number of ways of creating a mesh, or of reading in a mesh created by an external program.

Note that I have installed FENICS using Docker, and so to run this script I issue the commands:

1. cd $HOME/fenicsproject/mesh_test
2. fenicsproject run
3. python3 mesh_test.py
4. exit

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

expression_test, a FENICS script which explores expression objects.

Source Code:

• mesh_test.py the script.
• mesh_test.txt the output file.
• cape.png a plot of a mesh created by reading an XML file.
• cape.xml an XML file describing a mesh.
• circleminusrectanglemesh.png a plot of mesh of a circle minus a rectangle.
• rectanglemesh.png a plot of a mesh on a rectangle.
• unitcubemesh.png a plot of a mesh in the unit cube.
• unitintervalmesh.png a plot of a mesh over the unit interval.