====== Geometry definition ======

Creation of an analysis ''metafor'' and access to the domain:

  metafor = Metafor()
  domain = metafor.getDomain()

Configuration of geometry:

  geometry = domain.getGeometry()
  
  geometry.setDim3D()             # 3D modelling
  geometry.setDimPlaneStrain(t)   # 2D modelling in plane strain with thickness = t
  geometry.setDimAxisymmetric()   # 2D axisymmetric modelling with thickness = 1 radian