Line data    Source code

       1             : // ColourTracing.h is a part of the PYTHIA event generator.
       2             : // Copyright (C) 2015 Torbjorn Sjostrand.
       3             : // PYTHIA is licenced under the GNU GPL version 2, see COPYING for details.
       4             : // Please respect the MCnet Guidelines, see GUIDELINES for details.
       5             : 
       6             : // This file contains the class ColurTracing.
       7             : // ColourTracing traces colour lines in the event record.
       8             : 
       9             : 
      10             : #ifndef Pythia8_ColourTracing_H
      11             : #define Pythia8_ColourTracing_H
      12             : 
      13             : #include "Pythia8/Event.h"
      14             : #include "Pythia8/Info.h"
      15             : 
      16             : namespace Pythia8 {
      17             : 
      18             : //==========================================================================
      19             : 
      20             : // ColourTracing class. It is used to trace colours within the event record.
      21             : 
      22           0 : class ColourTracing {
      23             : 
      24             : public:
      25             : 
      26           0 :   void init( Info* infoPtrIn) {infoPtr = infoPtrIn;}
      27             : 
      28             :   // Setup the colour lists.
      29             :   bool setupColList(Event& event);
      30             : 
      31             :   // Trace a colour line, from a colour, from an anticolour, or in loop.
      32             :   bool traceFromAcol(int indxCol, Event& event, int iJun, int iCol,
      33             :     vector<int>& iParton);
      34             :   bool traceFromCol(int indxCol, Event& event, int iJun, int iCol,
      35             :     vector<int>& iParton);
      36             :   bool traceInLoop(Event& event, vector<int>& iParton);
      37             : 
      38           0 :   bool finished() { return (int(iColAndAcol.size()) == 0);}
      39           0 :   bool colFinished() { return (int(iColEnd.size()) == 0);}
      40             : 
      41             :   // Get junction chains where the junctions are directly connected.
      42             :   vector<vector<int > > getJunChains(Event& event);
      43             : 
      44             : private:
      45             : 
      46             :    vector<int> iColEnd, iAcolEnd, iColAndAcol;
      47             : 
      48             :   // Pointer to various information on the generation.
      49             :   Info*          infoPtr;
      50             : 
      51             : };
      52             : 
      53             : //==========================================================================
      54             : 
      55             : } // end namespace Pythia8
      56             : 
      57             : #endif // Pythia8_ColourTracing_H