class AliHMPIDCluster: public AliCluster3D

Set the cluster properties for the AliCluster3D part

 Calculates naive cluster position as a center of gravity of its digits.
 Arguments: none
   Returns: none

 Correction of cluster x position due to sinoid, see HMPID TDR  page 30
 Arguments: none
   Returns: none

 Cluster fit function
 par[0]=x par[1]=y par[2]=q for the first Mathieson shape
 par[3]=x par[4]=y par[5]=q for the second Mathieson shape and so on up to iNpars/3 Mathieson shapes
 For each pad of the cluster calculates the difference between actual pad charge and the charge induced to this pad by all Mathieson distributions
 Then the chi2 is calculated as the sum of this value squared for all pad in the cluster.
 Arguments: iNpars - number of parameters which is number of local maxima of cluster * 3
            chi2   - function result to be minimised
            par   - parameters array of size iNpars
   Returns: none

Print current cluster

This methode is invoked when the cluster is formed to solve it. Solve the cluster means to try to unfold the cluster
into the local maxima number of clusters. This methode is invoked by AliHMPIDRconstructor::Dig2Clu() on cluster by cluster basis.
At this point, cluster contains a list of digits, cluster charge and size is precalculated in AddDigit(), position is preset to (-1,-1) in ctor,
status is preset to kFormed in AddDigit(), chamber-sector info is preseted to actual values in AddDigit()
Method first finds number of local maxima and if it's more then one tries to unfold this cluster into local maxima number of clusters
Arguments: pCluLst     - cluster list pointer where to add new cluster(s)
           isTryUnfold - flag to switch on/off unfolding
  Returns: number of local maxima of original cluster

private part

  AliHMPIDCluster &operator=(const AliHMPIDCluster &c) {if(this == &c)return *this;AliCluster3D::operator=(c);
                                                       fSi=c.fSi;  fSt=c.fSt; fCh=c.fCh; fBox=c.fBox;fNlocMax=c.fNlocMax;fMaxQpad=c.fMaxQpad; fMaxQ=c.fMaxQ;fQRaw=c.fQRaw;
                                                        fQ=c.fQ; fErrQ=c.fErrQ;
                                                        fXX=c.fXX; fErrX=c.fErrX;
                                                        fYY=c.fYY; fErrY=c.fErrY; fChi2=c.fChi2;fDigs=c.fDigs ? new TObjArray(*c.fDigs):0; return *this;}

  AliHMPIDCluster(const AliHMPIDCluster& c);              //dummy copy constructor