| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 //
27 //
28 //
29 // John Allison 17th August 2013
30 // Michael Kelsey 31st January 2019 -- Move f
31 //
32 // Class Description:
33 //
34 // Model that knows how to draw the magnetic f
35
36 #include "G4MagneticFieldModel.hh"
37 #include "G4Field.hh"
38 #include "G4Point3D.hh"
39
40
41 // Return magnetic field vector for display
42
43 void G4MagneticFieldModel::
44 GetFieldAtLocation(const G4Field* field, const
45 G4double time, G4Point3D& result) const
46 if (!field) return; // No action if no f
47
48 G4double xyzt[4] = { position.x(), position.
49 G4double BEvals[6] = {0.}; // Field retur
50 field->GetFieldValue(xyzt, BEvals);
51
52 result.set(BEvals[0], BEvals[1], BEvals[2]);
53 return;
54 }
55