Files with example problems described in EuroSciPy 2014 proceedings article
"Enhancing SfePy with Isogeometric Analysis".

Assuming the problem description files are in the top level sfepy directory,
the examples can be run and visualized as follows:

- 2D Laplace equation by IGA::

  python simple.py laplace_iga.py
  python postproc.py ig_domain.vtk --wireframe -b \
    -d'T,plot_warp_scalar,rel_scaling=1'

- 2D Laplace equation by FEM::

  python simple.py laplace_fem.py
  python postproc.py fe_domain.vtk --wireframe -b \
    -d'T,plot_warp_scalar,rel_scaling=1'

- 2D Poisson equation by IGA, with volume source term in a subdomain::

  python simple.py poisson_iga.py
  python postproc.py ig_domain.vtk --wireframe -b \
    -d'T,plot_warp_scalar,rel_scaling=1'

- 2D elasticity by IGA::

  python simple.py elasticity_iga.py
  python postproc.py ig_domain_3d.vtk --wireframe -b \
    -d 'u,plot_displacements,rel_scaling=1e1'