// @(#) $Id$
// Original: AliHLTSpacePointData.h,v 1.4 2003/07/27 21:02:09 loizides 

#ifndef SPACEPOINTDATA_H
#define SPACEPOINTDATA_H

#include "AliHLTTPCRootTypes.h"

/**
 * @struct AliHLTTPCSpacePointData
 * Primitive data exchange structure for TPC clusters.
 * Together with the AliHLTTPCClusterDataFormat this defines
 * the output of the TPC online Cluster Finder.
 *
 * @ingroup alihlt_tpc_datastructs
 */
struct AliHLTTPCSpacePointData{
#ifdef do_mc
  Int_t fTrackID[3];
#endif
  Float_t fX;  //==fPadRow in local system
  Float_t fY;  
  Float_t fZ;
  UInt_t fID;  //contains slice patch and number
  UChar_t fPadRow;
  Float_t fSigmaY2; //error (former width) of the clusters
  Float_t fSigmaZ2; //error (former width) of the clusters
  UInt_t fCharge;
  Bool_t fUsed;     // only used in AliHLTTPCDisplay 
  Int_t fTrackN;    // only used in AliHLTTPCDisplay 
};
typedef struct AliHLTTPCSpacePointData AliHLTTPCSpacePointData;


#endif /* SPACEPOINTDATA_H */