Grain Size Distributions
------------------------
* Run *spparks*
* Visualize 

  * Lattice: 128x128; (*spparks* rendered): `dump image`_

        .. image:: n.128/images/grain_growth.0.png
           :width: 25%

        .. image:: n.128/images/grain_growth.3.png
           :width: 25%

        .. image:: n.128/images/grain_growth.28.png
           :width: 25%


  * Lattice: 1024x1024; (*paraview* rendered)

        .. image:: images/N.1024.kT=0.050.grains.0.png
           :width: 25%

        .. image:: images/N.1024.kT=0.050.grains.3.png
           :width: 25%

        .. image:: images/N.1024.kT=0.050.grains.12.png
           :width: 25%

* Post-process and analyze grain-size distributions 

        * Use *python*/*fortran*/*c++* to process *dump* and/or *cluster* files

          * *dump* file snippet

            * header information
            * typical dump file contains 1 or more time steps (depending)
            * for brevity, snippet shows single time step
            * for brevity, snippet clips all but 2 atoms 

                  .. literalinclude:: dump.header

        * Average growth size versus time; **Note trends**

        .. image:: images/N.1024.grainsize_versus_time.jpg
           :width: 75%

        * Grain size distributions

        .. image:: images/N.1024.kT=0.050.grains.12.png
           :width: 40%

        .. image:: images/N.1024.kT=0.050.12.jpg
           :width: 40%

        .. image:: images/N.1024.kT=0.250.grains.12.png
           :width: 40%

        .. image:: images/N.1024.kT=0.250.12.jpg
           :width: 40%

        .. image:: images/N.1024.kT=0.500.grains.12.png
           :width: 40%

        .. image:: images/N.1024.kT=0.500.12.jpg
           :width: 40%


.. _dump image: http://spparks.sandia.gov/doc/dump_image.html