Gabriele Cosmo
157 lines
5.0 KiB
C++
157 lines
5.0 KiB
C++
//
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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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/// \file materials/src/G4LatticePhysical.cc
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/// \brief Implementation of the G4LatticePhysical class
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//
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//
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// 20131115 Save rotation results in local variable, report verbosely
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// 20131116 Replace G4Transform3D with G4RotationMatrix
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#include "G4LatticePhysical.hh"
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#include "G4LatticeLogical.hh"
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#include "G4PhysicalConstants.hh"
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#include "G4RotationMatrix.hh"
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#include "G4SystemOfUnits.hh"
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// Unit vectors defined for convenience (avoid memory churn)
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namespace
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{
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G4ThreeVector xhat(1, 0, 0), yhat(0, 1, 0), zhat(0, 0, 1), nullVec(0, 0, 0);
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}
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G4LatticePhysical::G4LatticePhysical(const G4LatticeLogical* Lat, const G4RotationMatrix* Rot)
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: fLattice(Lat)
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{
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SetPhysicalOrientation(Rot);
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}
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void G4LatticePhysical::SetPhysicalOrientation(const G4RotationMatrix* Rot)
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{
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if (Rot == nullptr) { // No orientation specified
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fLocalToGlobal = fGlobalToLocal = G4RotationMatrix::IDENTITY;
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}
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else {
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fLocalToGlobal = fGlobalToLocal = *Rot; // Frame rotation
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fGlobalToLocal.invert();
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}
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if (verboseLevel != 0) {
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G4cout << "G4LatticePhysical::SetPhysicalOrientation " << *Rot
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<< "\nfLocalToGlobal: " << fLocalToGlobal << "\nfGlobalToLocal: " << fGlobalToLocal
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<< G4endl;
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}
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}
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void G4LatticePhysical::SetLatticeOrientation(G4double t_rot, G4double p_rot)
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{
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fTheta = t_rot;
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fPhi = p_rot;
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if (verboseLevel != 0) {
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G4cout << "G4LatticePhysical::SetLatticeOrientation " << fTheta << " " << fPhi << G4endl;
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}
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}
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void G4LatticePhysical::SetMillerOrientation(G4int l, G4int k, G4int n)
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{
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fTheta = halfpi - std::atan2(n + 0.000001, l + 0.000001);
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fPhi = halfpi - std::atan2(l + 0.000001, k + 0.000001);
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if (verboseLevel != 0) {
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G4cout << "G4LatticePhysical::SetMillerOrientation(" << l << k << n << ") : " << fTheta << " "
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<< fPhi << G4endl;
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}
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}
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///////////////////////////////
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// Loads the group velocity in m/s
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/////////////////////////////
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G4double G4LatticePhysical::MapKtoV(G4int polarizationState, G4ThreeVector k) const
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{
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if (verboseLevel > 1) {
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G4cout << "G4LatticePhysical::MapKtoV " << k << G4endl;
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}
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k.rotate(yhat, fTheta).rotate(zhat, fPhi);
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return fLattice->MapKtoV(polarizationState, k);
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}
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///////////////////////////////
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// Loads the normalized direction vector along VG
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///////////////////////////////
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G4ThreeVector G4LatticePhysical::MapKtoVDir(G4int polarizationState, G4ThreeVector k) const
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{
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if (verboseLevel > 1) {
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G4cout << "G4LatticePhysical::MapKtoVDir " << k << G4endl;
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}
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k.rotate(yhat, fTheta).rotate(zhat, fPhi);
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G4ThreeVector VG = fLattice->MapKtoVDir(polarizationState, k);
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return VG.rotate(zhat, -fPhi).rotate(yhat, -fTheta);
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}
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// Apply orientation transforms to specified vector
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G4ThreeVector G4LatticePhysical::RotateToGlobal(const G4ThreeVector& dir) const
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{
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if (verboseLevel > 1) {
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G4cout << "G4LatticePhysical::RotateToGlobal " << dir << "\nusing fLocalToGlobal "
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<< fLocalToGlobal << G4endl;
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}
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G4ThreeVector result = fLocalToGlobal * dir;
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if (verboseLevel > 1) {
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G4cout << " result " << result << G4endl;
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}
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return result;
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}
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G4ThreeVector G4LatticePhysical::RotateToLocal(const G4ThreeVector& dir) const
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{
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if (verboseLevel > 1) {
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G4cout << "G4LatticePhysical::RotateToLocal " << dir << "\nusing fGlobalToLocal "
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<< fGlobalToLocal << G4endl;
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}
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G4ThreeVector result = fGlobalToLocal * dir;
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if (verboseLevel > 1) {
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G4cout << " result " << result << G4endl;
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}
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return result;
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}
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