class THaVDCCluster: public TObject

 Copy constructor

 Assignment operator

 Destructor

Add a hit to the cluster

 Clear the contents of the cluster

 Clear fit results only

 Compare this cluster to another via the wire number of the pivot.
 Returns -1 if comparison cannot be made (unlike class, no pivot).

 Estimate Track Parameters
 Calculates pivot wire and uses its position as position of cluster
 Estimates the slope based on the distance between the first and last
 wires to be hit in the U (or V) and detector Z directions

 Convert TDC Times in wires to drift distances

 Calculate and store the distance of the fitted-track to the wires.
  We can then inspect the quality of the fits

 Fit track to drift distances. Supports three modes:

 kSimple:  Linear fit, ignore t0 and multihits
 kT0:      Fit t0, but ignore mulithits
 kFull:    Analyze multihits and fit t0

 FIXME: kT0 and kFull are not yet implemented. Identical to kSimple.

 Perform linear fit on drift times. Calculates slope, intercept, and errors.
 Assume t0 = 0.

 Perform linear fit on drift times. Calculates slope, intercept, and errors.
 Does not assume the uncertainty is the same for all hits.

 Assume t0 = 0.

 Get wire number of cluster pivot (hit with smallest drift distance)

 given the parameters of the track (slope and intercept), calculate the
 residual chi2 for the cluster

 Print contents of cluster

Get and Set Functions

    void SetUVTrack(THaVDCUVTrack * uvtrack) {fUVTrack = uvtrack;}
    void SetTrack(THaTrack * track) {fTrack = track;}