BDSIM: include/BDSXYMagField2.hh Source File

00001 //Based on the Geant4 example examples/advanced/purging_magnet/src/PurgMagTabulatedField3D.cc
00002 #include "G4MagneticField.hh"
00003 #include "G4ios.hh"
00004 #include "BDSMagField.hh"
00005 
00006 #include <fstream>
00007 #include <vector>
00008 #include <cmath>
00009 
00010 class BDSXYMagField2
00011 #ifndef STANDALONE
00012 // : public G4MagneticField
00013   : public BDSMagField
00014 #endif
00015 {
00016   
00017   // Storage space for the table
00018   std::vector< std::vector< double > > xField;
00019   std::vector< std::vector< double > > yField;
00020   std::vector< std::vector< double > > zField;
00021   // The dimensions of the table
00022   int nx,ny; 
00023   // The physical limits of the defined region
00024   double minx, maxx, miny, maxy;
00025   // The physical extent of the defined region
00026   double dx, dy;
00027   bool invertX, invertY;
00028 
00029 public:
00030   BDSXYMagField2(const char* filename);
00031   void  GetFieldValue( const  double Point[4],
00032                        double *Bfield          ) const;
00033 };
00034