[815] | 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 | // $Id: G4ErrorFreeTrajParam.cc,v 1.3 2007/09/24 16:24:45 arce Exp $ |
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[850] | 27 | // GEANT4 tag $Name: HEAD $ |
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[815] | 28 | // |
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| 29 | // ------------------------------------------------------------ |
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| 30 | // GEANT 4 class implementation file |
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| 31 | // ------------------------------------------------------------ |
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| 32 | // |
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| 33 | |
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| 34 | #include "G4ErrorFreeTrajParam.hh" |
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| 35 | #include "G4ThreeVector.hh" |
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| 36 | |
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| 37 | #include <iomanip> |
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| 38 | |
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| 39 | //------------------------------------------------------------------------ |
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| 40 | G4ErrorFreeTrajParam::G4ErrorFreeTrajParam( const G4Point3D& pos, |
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| 41 | const G4Vector3D& mom ) |
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| 42 | { |
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| 43 | SetParameters( pos, mom ); |
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| 44 | } |
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| 45 | |
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| 46 | |
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| 47 | //------------------------------------------------------------------------ |
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| 48 | void G4ErrorFreeTrajParam::SetParameters( const G4Point3D& pos, |
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| 49 | const G4Vector3D& mom ) |
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| 50 | { |
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| 51 | fDir = mom; |
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| 52 | fInvP = 1./mom.mag(); |
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| 53 | fLambda = 90.*deg - mom.theta(); |
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| 54 | fPhi = mom.phi(); |
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| 55 | G4Vector3D vxPerp(0.,0.,0.); |
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| 56 | if( mom.mag() > 0.) { |
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| 57 | vxPerp = mom/mom.mag(); |
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| 58 | } |
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| 59 | G4Vector3D vyPerp = G4Vector3D( -vxPerp.y(), vxPerp.x(), 0.); |
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| 60 | vyPerp /= vyPerp.mag(); |
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| 61 | G4Vector3D vzPerp = vxPerp.cross( vyPerp ); |
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| 62 | vzPerp /= vzPerp.mag(); |
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| 63 | // check if right handed |
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| 64 | // fXPerp = pos.proj( mom ); |
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| 65 | G4ThreeVector posv(pos); |
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| 66 | if( vyPerp.mag() != 0. ) { |
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| 67 | fYPerp = posv.project( vyPerp ).mag(); |
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| 68 | fZPerp = posv.project( vzPerp ).mag(); |
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| 69 | } else { |
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| 70 | fYPerp = 0.; |
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| 71 | fZPerp = 0.; |
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| 72 | } |
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| 73 | } |
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| 74 | |
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| 75 | //------------------------------------------------------------------------ |
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| 76 | void G4ErrorFreeTrajParam::Update( const G4Track* aTrack ) |
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| 77 | { |
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| 78 | SetParameters( aTrack->GetPosition(), aTrack->GetMomentum() ); |
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| 79 | |
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| 80 | } |
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| 81 | |
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| 82 | |
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| 83 | //------------------------------------------------------------------------ |
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| 84 | std::ostream& operator<<(std::ostream& out, const G4ErrorFreeTrajParam& tp) |
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| 85 | { |
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| 86 | // long mode = out.setf(std::ios::fixed,std::ios::floatfield); |
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| 87 | |
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| 88 | // out << tp.theType; |
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| 89 | // out << std::setprecision(5) << std::setw(10); |
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| 90 | out << std::setprecision(8) << " InvP= " << tp.fInvP << " Theta= " |
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| 91 | << tp.fLambda << " Phi= " << tp.fPhi << " YPerp= " << tp.fYPerp |
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| 92 | << " ZPerp= " << tp.fZPerp << G4endl; |
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| 93 | out << " momentum direction= " << tp.fDir << G4endl; |
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| 94 | |
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| 95 | return out; |
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| 96 | } |
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