Gabriele Cosmo
165 lines
4.9 KiB
Plaintext
165 lines
4.9 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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//
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// $Id: G4Trap.icc,v 1.8 2006/10/19 15:33:37 gcosmo Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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// --------------------------------------------------------------------
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// GEANT 4 inline definitions file
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//
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// G4Trap.icc
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//
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// Implementation of inline methods of G4Trap
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// --------------------------------------------------------------------
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inline
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G4double G4Trap::GetZHalfLength() const
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{
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return fDz ;
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}
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inline
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G4ThreeVector G4Trap::GetSymAxis() const
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{
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G4double cosTheta = 1.0/std::sqrt(1+fTthetaCphi*fTthetaCphi +
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fTthetaSphi*fTthetaSphi) ;
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return G4ThreeVector(fTthetaCphi*cosTheta,
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fTthetaSphi*cosTheta,
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cosTheta) ;
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}
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inline
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G4double G4Trap::GetYHalfLength1() const
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{
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return fDy1 ;
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}
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inline
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G4double G4Trap::GetXHalfLength1() const
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{
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return fDx1 ;
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}
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inline
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G4double G4Trap::GetXHalfLength2() const
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{
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return fDx2 ;
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}
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inline
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G4double G4Trap::GetTanAlpha1() const
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{
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return fTalpha1 ;
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}
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inline
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G4double G4Trap::GetYHalfLength2() const
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{
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return fDy2 ;
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}
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inline
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G4double G4Trap::GetXHalfLength3() const
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{
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return fDx3 ;
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}
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inline
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G4double G4Trap::GetXHalfLength4() const
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{
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return fDx4 ;
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}
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inline
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G4double G4Trap::GetTanAlpha2() const
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{
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return fTalpha2 ;
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}
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inline
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TrapSidePlane G4Trap::GetSidePlane( G4int n ) const
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{
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return fPlanes[n] ;
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}
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inline
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G4double G4Trap::GetFaceArea(const G4ThreeVector& p0, const G4ThreeVector& p1,
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const G4ThreeVector& p2, const G4ThreeVector& p3)
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{
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G4double area = 0.5*((p1-p0).cross(p2-p1).mag()+(p3-p2).cross(p0-p3).mag());
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return area;
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}
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inline
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G4double G4Trap::GetCubicVolume()
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{
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if(fCubicVolume != 0.) {;}
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else { fCubicVolume = fDz*( (fDx1+fDx2+fDx3+fDx4)*(fDy1+fDy2)
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+ (fDx4+fDx3-fDx2-fDx1)*(fDy2-fDy1)/3 ); }
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return fCubicVolume;
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}
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inline
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G4double G4Trap::GetSurfaceArea()
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{
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if(fSurfaceArea != 0.) {;}
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else
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{
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G4ThreeVector ba(fDx1-fDx2+fTalpha1*2*fDy1,2*fDy1,0);
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G4ThreeVector bc(2*fDz*fTthetaCphi-(fDx4-fDx2)+fTalpha2*fDy2-fTalpha1*fDy1,
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2*fDz*fTthetaSphi+fDy2-fDy1, 2*fDz);
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G4ThreeVector dc(-fDx4+fDx3+2*fTalpha2*fDy2, 2*fDy2,0);
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G4ThreeVector da(-2*fDz*fTthetaCphi-(fDx1-fDx3)-fTalpha1*fDy1+fTalpha2*fDy2,
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-2*fDz*fTthetaSphi-fDy1+fDy2,-2*fDz);
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G4ThreeVector ef(fDx2-fDx1+2*fTalpha1*fDy1, 2*fDy1,0);
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G4ThreeVector eh(2*fDz*fTthetaCphi+fDx3-fDx1+fTalpha1*fDy1-fTalpha2*fDy2,
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2*fDz*fTthetaSphi-fDy2+fDy1,2*fDz);
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G4ThreeVector gh(fDx3-fDx4-2*fTalpha2*fDy2, -2*fDy2,0);
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G4ThreeVector gf(-2*fDz*fTthetaCphi+fDx2-fDx4+fTalpha1*fDy1-fTalpha2*fDy2,
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-2*fDz*fTthetaSphi+fDy1-fDy2,-2*fDz);
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G4ThreeVector cr;
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cr = ba.cross(bc);
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G4double babc=cr.mag();
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cr = dc.cross(da);
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G4double dcda=cr.mag();
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cr = ef.cross(eh);
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G4double efeh=cr.mag();
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cr = gh.cross(gf);
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G4double ghgf=cr.mag();
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fSurfaceArea = 2*fDy1*(fDx1+fDx2)+2*fDy2*(fDx3+fDx4)
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+ (fDx1+fDx3)
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* std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1-2*fDz*fTthetaSphi,2))
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+ (fDx2+fDx4)
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* std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1+2*fDz*fTthetaSphi,2))
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+ 0.5*(babc+dcda+efeh+ghgf);
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}
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return fSurfaceArea;
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}
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