Gabriele Cosmo
104 lines
3.6 KiB
Plaintext
104 lines
3.6 KiB
Plaintext
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4ChordFinder inline implementations
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//
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// Author: John Apostolakis (CERN), 25.02.1997 - Design and implementation
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// --------------------------------------------------------------------
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inline
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void G4ChordFinder::SetIntegrationDriver(G4VIntegrationDriver* driver)
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{
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fIntgrDriver = driver;
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}
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inline
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G4VIntegrationDriver* G4ChordFinder::GetIntegrationDriver()
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{
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return fIntgrDriver;
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}
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inline
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G4double G4ChordFinder::GetDeltaChord() const
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{
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return fDeltaChord;
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}
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inline
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void G4ChordFinder::SetDeltaChord(G4double newval)
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{
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fDeltaChord = newval;
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}
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inline
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void G4ChordFinder::ResetStepEstimate()
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{
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fIntgrDriver->OnStartTracking();
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}
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inline
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G4int G4ChordFinder::SetVerbose( G4int newvalue )
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{
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G4int oldval = fStatsVerbose;
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fStatsVerbose = newvalue;
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return oldval;
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}
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// A member that calculates the inverse parabolic through
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// the three points (x,y) and returns the value x that, for the
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// inverse parabolic, corresponds to y=0.
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//
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inline
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G4double G4ChordFinder::InvParabolic ( const G4double xa, const G4double ya,
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const G4double xb, const G4double yb,
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const G4double xc, const G4double yc )
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{
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const G4double R = yb/yc,
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S = yb/ya,
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T = ya/yc;
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const G4double Q = (T-1)*(R-1)*(S-1);
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if (std::fabs(Q) <DBL_MIN ) { return DBL_MAX; }
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const G4double P = S*(T*(R-T)*(xc-xb) - (1-R)*(xb-xa));
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return xb + P/Q;
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}
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inline G4double
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G4ChordFinder::AdvanceChordLimited(G4FieldTrack& yCurrent,
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G4double stepInitial,
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G4double epsStep_Relative,
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const G4ThreeVector& /*latestSafetyOrigin*/,
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G4double /*lasestSafetyRadius*/)
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{
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return fIntgrDriver->AdvanceChordLimited(yCurrent, stepInitial,
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epsStep_Relative, fDeltaChord);
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}
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inline
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void G4ChordFinder::OnComputeStep(const G4FieldTrack* track)
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{
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fIntgrDriver->OnComputeStep(track);
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}
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