Import Geant4 9.0.0 source tree

2016-06-09 15:16:48 +02:00
parent 75c7fd177d
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6592 changed files with 84274 additions and 69292 deletions
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// $Id: G4ErrorMagFieldLimitProcess.cc,v 1.2 2007/05/29 14:41:35 gcosmo Exp $
+// GEANT4 tag $Name: geant4-09-00 $
+//
+// ------------------------------------------------------------
+//      GEANT 4 class implementation file 
+// ------------------------------------------------------------
+//
+
+#include "G4ErrorMagFieldLimitProcess.hh"
+#include "G4ErrorMessenger.hh"
+#include "G4TransportationManager.hh"
+#include "G4FieldManager.hh"
+#include "G4Field.hh"
+#include "G4Track.hh"
+
+#ifdef G4VERBOSE
+#include "G4ErrorPropagatorData.hh"
+#endif
+
+//------------------------------------------------------------------------
+G4ErrorMagFieldLimitProcess::
+G4ErrorMagFieldLimitProcess(const G4String& processName)
+  : G4VErrorLimitProcess(processName) 
+{
+  theStepLimit = kInfinity;
+}
+
+
+//------------------------------------------------------------------------
+G4ErrorMagFieldLimitProcess::~G4ErrorMagFieldLimitProcess()
+{ }
+
+
+//------------------------------------------------------------------------
+G4double G4ErrorMagFieldLimitProcess::
+PostStepGetPhysicalInteractionLength( const G4Track& aTrack, G4double ,
+                                            G4ForceCondition* condition )
+{
+  *condition = NotForced;
+  const G4Field* field =
+    G4TransportationManager::GetTransportationManager()->GetFieldManager()
+    ->GetDetectorField();
+
+  theStepLength = kInfinity;
+  if( field != 0 ) {
+    G4ThreeVector trkPosi = aTrack.GetPosition();
+    G4double pos1[3];
+       pos1[0] = trkPosi.x(); pos1[1] = trkPosi.y(); pos1[2] = trkPosi.z();
+
+    G4double h1[3];
+    field->GetFieldValue( pos1, h1 );
+
+    G4ThreeVector BVec(h1[0],h1[1],h1[2]);
+    G4double pmag = aTrack.GetMomentum().mag();
+    G4double BPerpMom = BVec.cross( pmag ).mag() / pmag;
+
+    theStepLength = theStepLimit * pmag / BPerpMom; 
+#ifdef G4VERBOSE
+  if(G4ErrorPropagatorData::verbose() >= 3 ) { 
+    G4cout <<  "G4ErrorMagFieldLimitProcess:: stepLength "
+           << theStepLength << " B " << BPerpMom << " BVec " << BVec
+           << " pmag " << pmag << G4endl;
+  }
+#endif
+  }
+
+  return theStepLength;
+}