===============
Postprocessing
===============

Mekanimo records the first 30,000 time-steps' (frames) results in a Python list called *system.timeHistory*.  This value can be changed from the Python interpreter as shown below.
 
.. code-block:: python

    >>> system.timeHistoryLen = 50000
    
    
If you don't wish to record any values, then you can set the *system.recordTimeHistory* to False as shown below.

.. code-block:: python

    >>> system.recordTimeHistory = False
    
.. warning::
    Once you set the *system.recordTimeHistory* to False then you cannot display any plots or playback the results.

To be able to post-process the time-history data you can request history output from Output -> Results data (CSV) menu (see Figure 3) by specifying the type/s of output results.  Once you select them, Mekanimo creates a comma seperated values text file with the same name as the current model name.  

.. figure:: output_request.png

    Figure 3: Output request options

In addition, results can be plotted by double clicking on the desired result node from the Object Tree as shown in Figure 4.

.. figure:: data_plot.png

    Figure 4: Plotting output data

Plotted results can be interactively manipulated from the plot window by zooming, panning, and hovering the cursor on the plot lines to read exact values.