PathLengthList.h

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//____________________________________________________________________________
/*!
 
\class   genie::PathLengthList
 
\brief   Object to be filled with the neutrino path-length, for all detector
         geometry materials, when starting from a position x and travelling
         along the direction of the neutrino 4-momentum.
 
\author  Costas Andreopoulos <c.andreopoulos \at cern.ch>
 University of Liverpool
 
\created May 24, 2005
 
\cpright  Copyright (c) 2003-2025, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org      
*/
//____________________________________________________________________________
 
#ifndef _PATH_LENGTH_LIST_H_
#define _PATH_LENGTH_LIST_H_
 
#include <map>
#include <ostream>
#include <string>
 
#include "Framework/Conventions/XmlParserStatus.h"
 
class TLorentzVector;
 
using std::map;
using std::ostream;
using std::string;
 
namespace genie {
 
class PathLengthList;
class PDGCodeList;
 
ostream & operator << (ostream & stream, const PathLengthList & list);
 
class PathLengthList : public map<int, double> {
 
public :
  PathLengthList();
  PathLengthList(const PDGCodeList & pdglist);
  PathLengthList(const PathLengthList & plist);
  PathLengthList(const map<int,double> & plist);
 ~PathLengthList();
 
  void   AddPathLength   (int pdgc, double pl); // path-legth(pdgc) += pl
  void   SetPathLength   (int pdgc, double pl); // path-legth(pdgc)  = pl
  void   SetAllToZero    (void);
  bool   AreAllZero      (void) const;
  void   ScalePathLength (int pdgc, double scale);
  double PathLength      (int pdgc) const;
 
  XmlParserStatus_t LoadFromXml (string filename);
  void              SaveAsXml   (string filename) const;
 
  void Copy  (const PathLengthList & plist);
  void Print (ostream & stream) const;
 
  PathLengthList & operator =  (const PathLengthList & list);
  friend ostream & operator << (ostream & stream, const PathLengthList & list);
};
 
}      // genie namespace
 
#endif // _PATH_LENGTH_LIST_H_