Gabriele Cosmo
69 lines
1.9 KiB
C++
69 lines
1.9 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: G4IntersectingCone.hh,v 1.3 2000/11/02 16:54:48 gcosmo Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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//
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//
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// --------------------------------------------------------------------
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// GEANT 4 class header file
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//
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//
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// G4IntersectingCone
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//
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// Class description:
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//
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// Utility class which calculates the intersection
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// of an arbitrary line with a fixed cone
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// Author:
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// David C. Williams (davidw@scipp.ucsc.edu)
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// --------------------------------------------------------------------
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#ifndef G4IntersectingCone_hh
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#define G4IntersectingCone_hh
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#include "globals.hh"
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#include "geomdefs.hh"
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#include "G4ThreeVector.hh"
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class G4IntersectingCone
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{
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public:
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G4IntersectingCone( const G4double r[2], const G4double z[2] );
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virtual ~G4IntersectingCone();
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G4int LineHitsCone( const G4ThreeVector &p, const G4ThreeVector &v,
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G4double *s1, G4double *s2 );
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G4bool HitOn( const G4double r, const G4double z );
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inline G4double RLo() const { return rLo; }
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inline G4double RHi() const { return rHi; }
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inline G4double ZLo() const { return zLo; }
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inline G4double ZHi() const { return zHi; }
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protected:
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G4double zLo, zHi, // Z bounds of side
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rLo, rHi; // R bounds of side
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G4bool type1; // True if cone is type 1 (abs(z1-z2)>abs(r1-r2))
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G4double A, B; // Cone radius parameter:
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// type 1: r = A + B*z
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// type 2: z = A + B*r
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G4int LineHitsCone1( const G4ThreeVector &p, const G4ThreeVector &v,
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G4double *s1, G4double *s2 );
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G4int LineHitsCone2( const G4ThreeVector &p, const G4ThreeVector &v,
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G4double *s1, G4double *s2 );
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};
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#endif
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