Gabriele Cosmo
290 lines
10 KiB
C++
290 lines
10 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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// G4UTrap
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//
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// Class description:
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//
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// Wrapper class for G4Trap to make use of VecGeom Trapezoid.
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// Author: G.Cosmo (CERN), 13.09.2013
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// --------------------------------------------------------------------
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#ifndef G4UTRAP_HH
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#define G4UTRAP_HH
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#include "G4UAdapter.hh"
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#if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )
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#include <VecGeom/volumes/UnplacedTrapezoid.h>
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#include "G4Polyhedron.hh"
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/**
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* @brief G4UTrap is a wrapper class for G4Trap to make use of VecGeom Trapezoid.
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*/
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class G4UTrap : public G4UAdapter<vecgeom::UnplacedTrapezoid>
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{
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using Shape_t = vecgeom::UnplacedTrapezoid;
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using Base_t = G4UAdapter<vecgeom::UnplacedTrapezoid>;
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public:
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/**
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* The most general constructor for G4Trap which prepares plane
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* equations and corner coordinates from parameters.
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* @param[in] pName The name of the solid.
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* @param[in] pDz Half-length along the Z-axis.
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* @param[in] pTheta Polar angle of the line joining the centres
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* of the faces at -/+pDz.
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* @param[in] pPhi Azimuthal angle of the line joining the centre
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* of the face at -pDz to the centre of the face at +pDz.
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* @param[in] pDy1 Half-length along Y of the face at -pDz.
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* @param[in] pDx1 Half-length along X of the side at y=-pDy1
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* of the face at -pDz.
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* @param[in] pDx2 Half-length along X of the side at y=+pDy1
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* of the face at -pDz.
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* @param[in] pAlp1 Angle with respect to the Y axis from the centre of the
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* side at y=-pDy1 to the centre at y=+pDy1 of the face at -pDz.
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* @param[in] pDy2 Half-length along Y of the face at +pDz.
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* @param[in] pDx3 Half-length along X of the side at y=-pDy2
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* of the face at +pDz.
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* @param[in] pDx4 Half-length along X of the side at y=+pDy2
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* of the face at +pDz.
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* @param[in] pAlp2 Angle with respect to the Y axis from the centre of the
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* side at y=-pDy2 to the centre at y=+pDy2 of the face at +pDz.
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*/
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G4UTrap( const G4String& pName,
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G4double pDz,
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G4double pTheta, G4double pPhi,
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G4double pDy1, G4double pDx1, G4double pDx2,
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G4double pAlp1,
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G4double pDy2, G4double pDx3, G4double pDx4,
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G4double pAlp2 );
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/**
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* Prepares plane equations and parameters from corner coordinates.
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* @param[in] pName The name of the solid.
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* @param[in] pt Points of the 8 vertices.
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*/
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G4UTrap( const G4String& pName,
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const G4ThreeVector pt[8] ) ;
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/**
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* Constructor for Right Angular Wedge from STEP (assumes pLTX<=pX).
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* @param[in] pName The name of the solid.
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* @param[in] pZ Length along Z.
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* @param[in] pY Length along Y.
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* @param[in] pX Length along X at the wider side.
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* @param[in] pLTX Length along X at the narrower side (plTX<=pX).
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*/
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G4UTrap( const G4String& pName,
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G4double pZ,
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G4double pY,
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G4double pX, G4double pLTX );
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/**
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* Constructor for G4Trd.
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* @param[in] pName The name of the solid.
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* @param[in] pDx1 Half-length along X at the surface positioned at -dz.
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* @param[in] pDx2 Half-length along X at the surface positioned at +dz.
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* @param[in] pDy1 Half-length along Y at the surface positioned at -dz.
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* @param[in] pDy2 Half-length along Y at the surface positioned at +dz.
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* @param[in] pDz Half-length along Z axis.
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*/
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G4UTrap( const G4String& pName,
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G4double pDx1, G4double pDx2,
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G4double pDy1, G4double pDy2,
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G4double pDz );
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/**
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* Constructor for G4Para.
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* @param[in] pName The name of the solid.
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* @param[in] pDx Half-length in X.
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* @param[in] pDy Half-length in Y.
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* @param[in] pDz Half-length in Z.
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* @param[in] pAlpha Angle formed by the Y axis and the plane joining the
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* centre of the faces parallel to the Z-X plane at -dy and +dy.
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* @param[in] pTheta Polar angle of the line joining the centres of the
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* faces at -dz and +dz in Z.
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* @param[in] pPhi Azimuthal angle of the line joining the centres of
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* the faces at -dz and +dz in Z.
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*/
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G4UTrap(const G4String& pName,
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G4double pDx, G4double pDy, G4double pDz,
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G4double pAlpha, G4double pTheta, G4double pPhi );
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/**
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* Constructor for "nominal" G4Trap whose parameters are to be set
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* by a G4VPVParamaterisation later on.
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* @param[in] pName The name of the solid.
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*/
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G4UTrap( const G4String& pName );
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/**
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* Default destructor.
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*/
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~G4UTrap() override = default;
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/**
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* Dispatch method for parameterisation replication mechanism and
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* dimension computation.
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*/
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void ComputeDimensions(G4VPVParameterisation* p,
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const G4int n,
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const G4VPhysicalVolume* pRep) override;
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/**
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* Makes a clone of the object for use in multi-treading.
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* @returns A pointer to the new cloned allocated solid.
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*/
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G4VSolid* Clone() const override;
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using Base_t::GetTanAlpha1;
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using Base_t::GetTanAlpha2;
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/**
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* Accessors. Returning the coordinates of a unit vector along a straight
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* line joining centers of -/+fDz planes.
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*/
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G4double GetZHalfLength() const;
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G4double GetYHalfLength1() const;
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G4double GetXHalfLength1() const;
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G4double GetXHalfLength2() const;
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G4double GetTanAlpha1() const;
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G4double GetYHalfLength2() const;
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G4double GetXHalfLength3() const;
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G4double GetXHalfLength4() const;
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G4double GetTanAlpha2() const;
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/**
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* More accessors.
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*/
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TrapSidePlane GetSidePlane(G4int n) const;
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G4ThreeVector GetSymAxis() const;
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/**
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* Accessors obtaining (re)computed values of the original parameters.
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*/
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G4double GetPhi() const;
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G4double GetTheta() const;
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G4double GetAlpha1() const;
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G4double GetAlpha2() const;
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/**
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* Sets all parameters, as for constructor. Checks and sets half-widths
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* as well as angles. Makes a final check of co-planarity.
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*/
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void SetAllParameters(G4double pDz, G4double pTheta, G4double pPhi,
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G4double pDy1, G4double pDx1, G4double pDx2,
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G4double pAlp1,
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G4double pDy2, G4double pDx3, G4double pDx4,
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G4double pAlp2);
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/**
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* Returns the type ID, "G4Trap" of the solid.
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*/
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inline G4GeometryType GetEntityType() const override;
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/**
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* Returns true as the solid has only planar faces.
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*/
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inline G4bool IsFaceted() const override;
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/**
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* Computes the bounding limits of the solid.
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* @param[out] pMin The minimum bounding limit point.
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* @param[out] pMax The maximum bounding limit point.
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*/
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void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
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/**
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* Calculates the minimum and maximum extent of the solid, when under the
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* specified transform, and within the specified limits.
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* @param[in] pAxis The axis along which compute the extent.
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* @param[in] pVoxelLimit The limiting space dictated by voxels.
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* @param[in] pTransform The internal transformation applied to the solid.
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* @param[out] pMin The minimum extent value.
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* @param[out] pMax The maximum extent value.
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* @returns True if the solid is intersected by the extent region.
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*/
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G4bool CalculateExtent(const EAxis pAxis,
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const G4VoxelLimits& pVoxelLimit,
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const G4AffineTransform& pTransform,
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G4double& pMin, G4double& pMax) const override;
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/**
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* Returns a generated polyhedron as graphical representations.
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*/
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G4Polyhedron* CreatePolyhedron() const override;
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/**
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* Copy constructor and assignment operator.
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*/
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G4UTrap(const G4UTrap& rhs);
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G4UTrap& operator=(const G4UTrap& rhs);
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private:
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/**
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* Sets parameters using eight vertices.
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*/
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void SetPlanes(const G4ThreeVector pt[8]);
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/**
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* Checks dimensions.
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*/
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void CheckParameters() const;
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/**
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* Computes coordinates of vertices.
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*/
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void GetVertices(G4ThreeVector pt[8]) const;
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/**
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* Checks planarity of lateral planes.
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*/
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void CheckPlanarity(const G4ThreeVector pt[8]) const;
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};
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// --------------------------------------------------------------------
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// Inline methods
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// --------------------------------------------------------------------
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inline G4GeometryType G4UTrap::GetEntityType() const
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{
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return "G4Trap";
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}
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inline G4bool G4UTrap::IsFaceted() const
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{
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return true;
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}
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#endif // G4GEOM_USE_USOLIDS
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#endif
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