View source for Tracking Library

* Tracking Code is available @ http://blinkin.krl.caltech.edu/progressive_tracking/tracking.tgz
* Brief Introduction to each Classes
** THaSolenoid (inherited from THaSpectrometer)
*** Template class for Solenoid detector
** SOLGEM (inherited from THaTrackingDetector)
*** Main class for the tracking detector.
*** Tracking is performed in the "coarsetrack" and "findtrack".
*** Additional methods are written to help the track finding. 
** THaGemHit
*** This class is to store the hit information on the GEM. It provide various methods to save/extract the hit information, e.g. x,y,z,r,phi etc. 
*** This function is used to store the information from detector (NOT the true simulated information.
** THaGemTrack
*** This class is to store the track information from the progressive tracking algorithm. One can save/extract various information related to the reconstructed track in this class. One can also sort the tracks to do the de-ghost. 
*** Information can then be saved into the final output rootfiles. 
** THaShowerHit
*** This class is added to store the hit information on the calorimeter. One special variable is the sector number.
*** This class is added for PVDIS tracking after the development of SIDIS progressive tracking. 
** THaSoleSimTrack in THaSoleGEMSim.h
*** Stored the saved true simulated track information from simulation.
*** Information can be then saved into output rootfiles.
** THaSoleSimHit in THaSoleGEMSim.h
*** Stored the saved true simulated hit information from simulation. 
*** Information can be then saved into output rootfiles. 
** THaSoleSimRun  (inherited from THaRunBase)
*** Template class
*** In this class, we calculate the additional false hits from the real hits (from both tracks and background hits). In principle, this part should be merged into the converter part. 
** THaSoleSimDecoder (inherited from THaEvData)
*** This is the class that one can load event information from the rootfiles.