domain
Generate a Region by "Subtraction"

domain, a FENICS code which which creates a region starting with a circle, and then "subtracting" a rectangle and smaller circle.

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

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

Licensing:

The GNU LGPL license.

Reference:

1. Hans Petter Langtangen, Anders Logg,
   Solving PDEs in Python - The FEniCS Tutorial Volume 1.

Source Code:

• domain.py a script which sets up the region and requests a mesh.
• domain.txt the output file.
• domain_mesh.png a plot of the mesh.