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Warning, file /include/HepMC/Units.h was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).
0001 #ifndef HEPMC_UNITS_H 0002 #define HEPMC_UNITS_H 0003 0004 //-------------------------------------------------------------------------- 0005 // Units.h 0006 // Author: A. Buckley, D. Grellscheid 0007 // 0008 // units used by a GenEvent 0009 // The default units are set by a configure switch at compile time in Units.cc. 0010 //-------------------------------------------------------------------------- 0011 0012 #include <iostream> 0013 #include <string> 0014 0015 namespace HepMC { 0016 0017 /// 0018 /// \namespace Units 0019 /// Allow units to be specified within HepMC. 0020 /// The default units are set at compile time. 0021 /// 0022 namespace Units { 0023 0024 // Convention: if both types are passed, MomentumUnit always goes first. 0025 enum MomentumUnit { MEV, GEV }; //!< momentum units 0026 enum LengthUnit { MM, CM }; //!< position units 0027 0028 LengthUnit default_length_unit(); //!< default unit is defined by configure 0029 MomentumUnit default_momentum_unit(); //!< default unit is defined by configure 0030 0031 // helper functions 0032 std::string name( MomentumUnit ); //!< convert enum to string 0033 std::string name( LengthUnit ); //!< convert enum to string 0034 0035 /// scaling factor relative to MeV 0036 double conversion_factor( MomentumUnit from, MomentumUnit to ); 0037 double conversion_factor( LengthUnit from, LengthUnit to ); 0038 0039 } // Units 0040 } // HepMC 0041 0042 #endif // HEPMC_UNITS_H
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