Gabriele Cosmo
207 lines
8.1 KiB
C++
207 lines
8.1 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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//
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// G4TwistTubsFlatSide
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//
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// Class description:
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//
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// Class describing a flat boundary surface for a cylinder.
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// Author: Kotoyo Hoshina (Chiba University), 01.08.2002 - Created.
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// Oliver Link (CERN), 13.11.2003 - Integration in Geant4
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// from original version in Jupiter-2.5.02 application.
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// --------------------------------------------------------------------
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#ifndef G4TWISTTUBSFLATSIDE_HH
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#define G4TWISTTUBSFLATSIDE_HH
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#include "G4VTwistSurface.hh"
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/**
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* @brief G4TwistTubsFlatSide describes a flat boundary surface for a cylinder.
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*/
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class G4TwistTubsFlatSide : public G4VTwistSurface
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{
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public:
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/**
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* Constructs a cylinder flat boundary surface, given its parameters.
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* @param[in] name The surface name.
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* @param[in] rot Rotation.
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* @param[in] tlate Translation.
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* @param[in] n Normal vector.
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* @param[in] axis0 Rho axis.
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* @param[in] axis1 Phi axis.
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* @param[in] axis0min Minimum in Rho.
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* @param[in] axis1min Minimum in Phi.
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* @param[in] axis0max Maximum in Rho.
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* @param[in] axis1max Maximum in Phi.
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*/
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G4TwistTubsFlatSide(const G4String& name,
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const G4RotationMatrix& rot,
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const G4ThreeVector& tlate,
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const G4ThreeVector& n,
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const EAxis axis0 = kRho, // RHO axis !
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const EAxis axis1 = kPhi, // PHI axis !
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G4double axis0min = -kInfinity,
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G4double axis1min = -kInfinity,
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G4double axis0max = kInfinity,
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G4double axis1max = kInfinity);
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/**
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* Alternative Construct for a cylinder flat boundary surface.
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* @param[in] name The surface name.
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* @param[in] EndInnerRadius Inner-hype radius at z=0.
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* @param[in] EndOuterRadius Outer-hype radius at z=0.
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* @param[in] DPhi Phi angle.
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* @param[in] EndPhi Total Phi.
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* @param[in] EndZ Z length.
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* @param[in] handedness Orientation: +z = +ve, -z = -ve.
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*/
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G4TwistTubsFlatSide(const G4String& name,
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G4double EndInnerRadius[2],
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G4double EndOuterRadius[2],
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G4double DPhi,
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G4double EndPhi[2],
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G4double EndZ[2],
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G4int handedness);
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/**
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* Default destructor.
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*/
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~G4TwistTubsFlatSide() override = default;
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/**
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* Returns a normal vector at a surface (or very close to the surface)
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* point at 'p'.
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* @param[in] p Not used. Using current normal.
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* @param[in] isGlobal If true, it returns the normal in global coordinates.
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* @returns The current normal vector.
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*/
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G4ThreeVector GetNormal(const G4ThreeVector& /* p */ ,
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G4bool isGlobal = false) override;
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/**
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* Returns the distance to surface, given point 'gp' and direction 'gv'.
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* @param[in] gp The point from where computing the distance.
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* @param[in] gv The direction along which computing the distance.
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* @param[out] gxx Vector of global points based on number of solutions.
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* @param[out] distance The distance vector based on number of solutions.
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* @param[out] areacode The location vector based on number of solutions.
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* @param[out] isvalid Validity vector based on number of solutions.
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* @param[in] validate Adopted validation criteria.
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* @returns The number of solutions.
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*/
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G4int DistanceToSurface(const G4ThreeVector& gp,
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const G4ThreeVector& gv,
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G4ThreeVector gxx[],
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G4double distance[],
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G4int areacode[],
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G4bool isvalid[],
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EValidate validate = kValidateWithTol) override;
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/**
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* Returns the safety distance to surface, given point 'gp'.
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* @param[in] gp The point from where computing the safety distance.
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* @param[out] gxx Vector of global points based on number of solutions.
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* @param[out] distance The distance vector based on number of solutions.
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* @param[out] areacode The location vector based on number of solutions.
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* @returns The number of solutions.
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*/
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G4int DistanceToSurface(const G4ThreeVector& gp,
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G4ThreeVector gxx[],
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G4double distance[],
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G4int areacode[]) override;
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/**
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* Fake default constructor for usage restricted to direct object
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* persistency for clients requiring preallocation of memory for
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* persistifiable objects.
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*/
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G4TwistTubsFlatSide(__void__&);
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private:
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/**
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* Returns point on surface given 'phi' and 'u'.
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*/
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inline G4ThreeVector SurfacePoint(G4double, G4double,
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G4bool isGlobal = false) override;
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/**
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* Internal accessors.
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*/
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inline G4double GetBoundaryMin(G4double phi) override;
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inline G4double GetBoundaryMax(G4double phi) override;
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inline G4double GetSurfaceArea() override { return fSurfaceArea ; }
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void GetFacets( G4int m, G4int n, G4double xyz[][3],
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G4int faces[][4], G4int iside ) override;
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/**
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* Returns the area code for point 'xx' using or not surface tolerance.
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*/
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G4int GetAreaCode(const G4ThreeVector& xx,
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G4bool withTol = true) override ;
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/**
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* Setters.
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*/
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void SetCorners() override;
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void SetBoundaries() override;
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private:
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G4double fSurfaceArea = 0.0;
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};
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//========================================================
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// inline functions
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//========================================================
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inline G4ThreeVector G4TwistTubsFlatSide::
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SurfacePoint(G4double phi , G4double rho , G4bool isGlobal )
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{
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G4ThreeVector SurfPoint (rho*std::cos(phi) , rho*std::sin(phi) , 0);
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if (isGlobal) { return (fRot * SurfPoint + fTrans); }
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return SurfPoint;
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}
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inline
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G4double G4TwistTubsFlatSide::GetBoundaryMin(G4double)
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{
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G4ThreeVector dphimin = GetCorner(sC0Max1Min);
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return std::atan2( dphimin.y(), dphimin.x() );
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}
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inline
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G4double G4TwistTubsFlatSide::GetBoundaryMax(G4double)
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{
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G4ThreeVector dphimax = GetCorner(sC0Max1Max);
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return std::atan2( dphimax.y(), dphimax.x() );
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}
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#endif
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