This directory contains a set of 2 3D elastic example
problems. All problems share the same mesh and material properties,
with the only differences being in the boundary conditions.  The mesh
consists of two tetrahedral elements.  The information describing the
examples may be divided into four groups:

1.  Global mesh information:  described in file twotet4.mesh

2.  Parameter settings common to all examples:  described in file
pylithapp.cfg.

3.  Material properties common to all examples:  described in the
database file matprops.spatialdb.

4.  Example-specific parameters and boundary condition specifications.

The examples and associated files are:

1.  axialdisp:  Axial displacements are applied to the left and right
corners of the mesh.
  a.  axialdisp.cfg:  Parameter settings for this problem.
  b.  axialdisp.spatialdb:  Boundary condition database for this
      problem.

2.  dislocation:  Fault displacements are applied between the two
elements, while the left and right corners are fixed in x, y, and z.
  a.  dislocation.cfg:  Parameter settings for this problem.
  b.  dislocation_slip.spatialdb:  Fault slip database for this problem.
  d.  dislocation_sliptime.spatialdb:  Fault slip time database for this
      problem.

All of the files are documented.  The 'pylithapp.cfg' file is read
automatically when running PyLith.  To add to or override these
settings, you may place an additional .cfg file on the command line.
To run the examples, you can type:
pylith axialdisp.cfg
pylith dislocation.cfg

Each of these commands will produce a set of VTK files, which may
be viewed with visualization packages such as ParaView or Mayavi.
The JPEG files in this directory show sample visualizations for these
problems using ParaView.
