Last change
on this file since 597 was 577, checked in by cp3-support, 13 years ago |
upgrade HepMC to version 2.06.05
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File size:
1.4 KB
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[577] | 1 | //--------------------------------------------------------------------------
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| 2 | // Units.cc
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| 3 | // Author: A. Buckley, D. Grellscheid
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| 4 | //
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| 5 | // units used by a GenEvent
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| 6 | // The default units are set here at compile time.
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| 7 | //--------------------------------------------------------------------------
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| 8 |
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| 9 | #include "Units.h"
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| 10 |
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| 11 | namespace HepMC {
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| 12 |
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| 13 | namespace Units {
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| 14 |
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| 15 | // helper functions
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| 16 | std::string name(MomentumUnit m) {
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| 17 | switch (m) {
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| 18 | case MEV : return "MEV";
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| 19 | case GEV : return "GEV";
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| 20 | default : return "badValue";
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| 21 | }
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| 22 | }
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| 23 |
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| 24 | std::string name(LengthUnit l) {
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| 25 | switch (l) {
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| 26 | case MM : return "MM";
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| 27 | case CM : return "CM";
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| 28 | default : return "badValue";
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| 29 | }
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| 30 | }
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| 31 |
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| 32 | double conversion_factor(MomentumUnit from, MomentumUnit to)
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| 33 | {
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| 34 | if ( from == to )
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| 35 | return 1.0;
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| 36 | else if ( from == MEV && to == GEV )
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| 37 | return 0.001;
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| 38 | else
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| 39 | return 1000.0;
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| 40 | }
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| 41 |
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| 42 | double conversion_factor(LengthUnit from, LengthUnit to)
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| 43 | {
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| 44 | if ( from == to )
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| 45 | return 1.0;
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| 46 | else if ( from == MM && to == CM )
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| 47 | return 0.1;
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| 48 | else
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| 49 | return 10.0;
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| 50 | }
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| 51 |
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| 52 | // if this function fails to compile, rerun configure using --with-length_units
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| 53 | LengthUnit default_length_unit() {
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| 54 | return MM ;
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| 55 | }
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| 56 |
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| 57 | // if this function fails to compile, rerun configure using --with-momentum_units
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| 58 | MomentumUnit default_momentum_unit() {
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| 59 | return GEV ;
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| 60 | }
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| 61 |
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| 62 | } // Units
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| 63 |
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| 64 | } // HepMC
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