Friday, October 6, 2006
John Allison  Geant4 Workshop  Lisbon  2006
Persistent and transient objects
Persistent or run-duration objects can always be refreshed
Geometry, axes, scale…
Transient (end-of-event or user drawn) objects are lost on change of view or viewer
Trajectories, hits…
Except for simple change of view parameters for “stored” drivers
Spawned or off-line viewers (DAWNFILE, HepRep/WIRED)
Valuable but limited