Gabriele Cosmo
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4PPara.cc,v 1.2 1999/11/17 10:49:03 morita Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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// class G4PPara
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//
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// Implementation for G4PPara class
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//
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// History:
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// 19.06.98 A.Kimura Converted G4Para.cc
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#include <math.h>
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#include "G4VSolid.hh"
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#include "G4PPara.hh"
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#include "G4Para.hh"
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// Constructor - check and set half-widths
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G4PPara::G4PPara(const G4Para* thePara)
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: G4PCSGSolid(thePara->GetName())
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{
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G4double pDx = thePara->GetXHalfLength();
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G4double pDy = thePara->GetYHalfLength();
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G4double pDz = thePara->GetZHalfLength();
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if(pDx>0&&pDy>0&&pDz>0) {
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fDx = pDx;
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fDy = pDy;
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fDz = pDz;
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fTalpha = thePara->GetTanAlpha();
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G4ThreeVector symAxis = thePara->GetSymAxis();
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fTthetaCphi = symAxis.x()/symAxis.z();
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fTthetaSphi = symAxis.y()/symAxis.z();
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} else {
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G4Exception("Error in G4PPara::G4PPara - Invalid Length Parameters");
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}
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}
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// ----------------------------------------------------------------------------
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G4PPara::~G4PPara()
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{;}
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// ----------------------------------------------------------------------------
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// make a transient object
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G4VSolid* G4PPara::MakeTransientObject() const {
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G4ThreeVector symaxis = GetSymAxis();
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G4double alpha = atan(fTalpha);
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G4double theta = acos(symaxis.z());
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G4double phi = acos(fTthetaCphi/tan(theta));
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G4VSolid* transientObject = new G4Para(GetName(),
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fDx, fDy, fDz,
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alpha, theta, phi);
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return transientObject;
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}
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// ******************************** End of G4PPara.cc ********************************
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