class HMdcClusSim: public HMdcClus

_HADES_CLASS_DESCRIPTION

 HMdcClusSim

 Data object for Mdc cluster.

  Int_t getTrackIndex(Int_t tr) - return geant track "tr" index
      in listTr[5] array or -1 if there no track "tr" in the array.

 Int_t getNTracks() - num. of tracks which have hits in cluster
      (5 tracks maximum) (noise don't increase tracks counter)

 Int_t getTrack(Int_t indx) - return track number.
      indx= 0, ..., (getNTracks()-1).
      List of tracks is sorted: first track (indx=0)
      have most number of hits, ...
      Track_number==-9 - wires produced due to geant bug
      Track_number==gHades->getEmbeddingRealTrackId() -
          real track embeded in simulation.

 Int_t getNoiseIndex(void) - return index of noise wires inf.
      if index < 0 - no noise in cluster.
      Track number for noise wires =-99
      Example:
      Int_t ind = clus->getNoiseIndex();
      if(ind>0) {
        clus->getTrack(ind);         // will return -99
        clus->getNTimesInTrack(ind); // number of noise wires

      }

 Short_t getNTimesInTrack(Int_t indx) - num. of hits
      in cluster from track getTrack(indx)

 Int_t getNLayersInTrack(Int_t indx, Int_t m=-1) num. layers
      with hits from track getTrack(indx):
      m=0 - in first module of segment,
      m=1 - in second module of segment,
      m!=0 && m!=1 - in segment

 Number of noise wires is kept in nTimes[4]:
      if listTracks[4]=-99 then nTimes[4] - number of noised wires


 Meaning of trackStatus[tr] bits:

  Bit 8: =0 - GEANT bug was found in this track
  Bit 7: =0 - track don't reach META
  Bit 6: =0 - not reconstructable track. It can be if
              track not present in mdc,
              track cross more then one sector,
              numder of segments <1 or >2,
              upstream direction of at list one segment,
              track doesn't cross inner or outer segment,
              num. of segments with digi.wires <1 or >2,
              num.digi.wires in track < 5*num.segments,
              at list one seg. has <3 layers or <5 wires
  Bit 5: =0 - segment has <3 layers or <5 digi.wires
  Bit 4: =0 - at list one mdc in segment has
              <3 fired layers or <5 wires
  Bit 3: =0 - segment can't be found due to high level
              of cluster finder
  Bit 2: =0 - fake contribution in cluster
  Bit 1: =0 - fake inner-outer segments matching
              (for outer segment only!)