K1.1 In the Viewer
The particle trajectories can be plotted in the Viewer by using the
global history file ("ghis" by default) as a macro. Click on 
om the hand-set
or ‘
on
the tool bar. On the dialog that opens, enter the name of the global history file as the
Macro file and click ‘OK’ to run it. All the tracks in the file will be read and
displayed as Viewer streamlines. They can then be turned on and off through the Streamline
Management Dialog.
To plot individual tracks from the history file, create a macro file which contains the lines:
HISTORY READ
Filename m [,n]
where filename is the name of the history file, and n is the number of the track to draw. If m is present, all tracks in the range m-n will be drawn.
The global history file, ghis, will be automatically saved as ‘case.his’, by clicking on File, Save as a case. The genuse file will be saved as ‘case.gen’. The individual trajectory and history files will not be saved automatically. They can always be recovered from ghis by running the track unpacker, as described above.