class HTofClusterF: public HReconstructor

_HADES_CLASS_DESCRIPTION

 HTofClusterF Tof cluster finder

 Iterates over the hit level of Tof data and finds a cluster-candidates.
 The cluster-candidate is constructed from set of hits when the following
 binary conditions are satisfied for each pair of hits consecutively
 read from HTofHit based category:

 1.) the hits are close to each other (same sector, adjacent rod)
 2.) time difference of two hits is less than value taken from HTofClusterFPar
 3.) xposition difference (in module coordinate system) of two hits is
     less than value taken from HTofClusterFPar

 Above binary conditions construct the chain of clustered hits
 from which the output information stored in the HTofCluster category
 is calculated.

 The data members inherited from HTofHit class, i.e. tof, xpos, xposAdc,
 lAmp, rAmp, xlab, ylab, zlab is calculated for the cluster here as a weighted
 mean of values appropriate to individual hits participating on cluster-candidate.
 The weight is energy deposited in the rod, i.e. edep.
 The edep of the cluster is sum of the edep's of hits.
 The flagAdc is 2 when all flagAdc flags of appropriate hits
 participating on cluster are = 2. In opposite case flagAdc = 0.

 !!! Important: Since the tof rod coordinate systems are shifted each
                other the weighted mean results concerning xpos data member
                would be wrong as it is evaluated in HTofHit relative to this
                reference system. Therefore the appropriate HTofCluster data
                member is evaluated from the position of individual hits
                relative to module reference system. The result stored in
                the HTofCluster is thus given also in module reference system.
                Therefore do not combine the xpos from HTofHit and HTofCluster
                objects without appropriate transformation.

 Additional data member is evaluated, i.e. cluster-candidate size
 (clustSize see HTofCluster)  that is defined as the number of the hits
 participating on cluster-candidate.

 "Simple" hits are also included in the output as the cluster-candidates
 with clustSize = 1.

 The probability function for the cluster-candidates of clustSize = 2 with
 tof < tLimit is calculated by using energy deposited of the cluster-candidate.
 Two probability numbers are thus provided, i.e. clustProbAll for
 cluster-candidates related to all ToF hits and clustProbLep for those
 cluster-candidates related to ToF-RICH correlated hits (leptons).
 Both the probability numbers depend on the parameters stored in
 parameter container HTofClusterFPar.