| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | // Code developed by:
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| 27 | // S.Larsson and J. Generowicz.
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| 28 | //
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| 29 | // *************************************
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| 30 | // * *
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| 31 | // * PurgMagTabulatedField3D.hh *
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| 32 | // * *
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| 33 | // *************************************
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| 34 | //
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| 35 | // $Id: PurgMagTabulatedField3D.hh,v 1.3 2006/06/29 16:06:05 gunter Exp $
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| 36 | // GEANT4 tag $Name: geant4-09-03-cand-01 $
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| 37 | //
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| 38 |
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| 39 | #include "globals.hh"
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| 40 | #include "G4MagneticField.hh"
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| 41 | #include "G4ios.hh"
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| 42 |
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| 43 | #include <fstream>
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| 44 | #include <vector>
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| 45 | #include <cmath>
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| 46 |
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| 47 | using namespace std;
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| 48 |
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| 49 | class PurgMagTabulatedField3D
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| 50 | #ifndef STANDALONE
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| 51 | : public G4MagneticField
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| 52 | #endif
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| 53 | {
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| 54 |
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| 55 | // Storage space for the table
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| 56 | vector< vector< vector< double > > > xField;
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| 57 | vector< vector< vector< double > > > yField;
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| 58 | vector< vector< vector< double > > > zField;
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| 59 | // The dimensions of the table
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| 60 | int nx,ny,nz;
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| 61 | // The physical limits of the defined region
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| 62 | double minx, maxx, miny, maxy, minz, maxz;
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| 63 | // The physical extent of the defined region
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| 64 | double dx, dy, dz;
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| 65 | double fZoffset;
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| 66 | bool invertX, invertY, invertZ;
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| 67 |
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| 68 | public:
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| 69 | PurgMagTabulatedField3D(const char* filename, double zOffset );
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| 70 | void GetFieldValue( const double Point[4],
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| 71 | double *Bfield ) const;
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| 72 | };
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| 73 |
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