- Protection added for null or empty input chains

[u/mrichter/AliRoot.git] / ITS / AliITSresponseSPD.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
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 * documentation strictly for non-commercial purposes is hereby granted   *
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 * appear in the supporting documentation. The authors make no claims     *
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///////////////////////////////////////////////////////////////////////////
//  Base Response class forITS                      
//  It is used to set static data members           
//  connected to parameters equal for all           
//  the SPD modules                                 
//
//  Modified by D. Elia, G.E. Bruno
//  March-April 2006
//  September   2007: Coupling params taken out
//                    left in AliITSCalibrationSPD only
//
///////////////////////////////////////////////////////////////////////////

#include "AliITSresponseSPD.h"

const Float_t AliITSresponseSPD::fgkDiffCoeffDefault = 0.; //change this
const TString AliITSresponseSPD::fgkCouplingOptDefault = "old";
const Float_t AliITSresponseSPD::fgkEccentricityDiffDefault = 0.85;

ClassImp(AliITSresponseSPD)	
//______________________________________________________________________
AliITSresponseSPD::AliITSresponseSPD():
  AliITSresponse(),
fCouplOpt(0),
fEccDiff(0){

  // constructor
  SetCouplingOption(fgkCouplingOptDefault);
  SetDiffCoeff(fgkDiffCoeffDefault,0.);
  SetSigmaDiffusionAsymmetry(fgkEccentricityDiffDefault);

}