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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 // G4TwistedTrap
0027 //
0028 // Class description:
0029 //
0030 //  A G4TwistedTrap is a general twisted trapezoid: The faces perpendicular to the
0031 //  z planes are trapezia, and their centres are not necessarily on
0032 //  a line parallel to the z axis.
0033 //
0034 //      pDz     Half-length along the z-axis
0035 //      pTheta  Polar angle of the line joining the centres of the faces
0036 //              at -/+pDz
0037 //      pPhi    Azimuthal angle of the line joing the centre of the face at
0038 //              -pDz to the centre of the face at +pDz
0039 //      pDy1    Half-length along y of the face at -pDz
0040 //      pDx1    Half-length along x of the side at y=-pDy1 of the face at -pDz
0041 //      pDx2    Half-length along x of the side at y=+pDy1 of the face at -pDz
0042 //
0043 //      pDy2    Half-length along y of the face at +pDz
0044 //      pDx3    Half-length along x of the side at y=-pDy2 of the face at +pDz
0045 //      pDx4    Half-length along x of the side at y=+pDy2 of the face at +pDz
0046 //      pAlph   Angle with respect to the y axis from the centre of the side
0047 //
0048 //
0049 //  A special regular case of a trapezoid with equal endcaps is available, 
0050 //  with polar,azimuthal and tilt angles set to zero.
0051 //
0052  
0053 // Author: 27-Oct-2004 - O.Link (Oliver.Link@cern.ch)
0054 // --------------------------------------------------------------------
0055 #ifndef G4TWISTEDTRAP_HH
0056 #define G4TWISTEDTRAP_HH
0057 
0058 #include "G4VTwistedFaceted.hh"
0059 
0060 class G4TwistedTrap : public G4VTwistedFaceted
0061 {
0062   public:
0063 
0064     G4TwistedTrap(const G4String& pName,
0065                         G4double  pPhiTwist,
0066                         G4double  pDx1,  // half x length at -pDz,-pDy
0067                         G4double  pDx2,  // half x length at -pDz,+pDy
0068                         G4double  pDy,
0069                         G4double  pDz);
0070 
0071 
0072     G4TwistedTrap(const G4String& pName,       // Name of instance
0073                         G4double  pPhiTwist,   // twist angle
0074                         G4double  pDz,     // half z length
0075                         G4double  pTheta,  // direction between end planes
0076                         G4double  pPhi,    // defined by polar and azim. angles
0077                         G4double  pDy1,    // half y length at -pDz
0078                         G4double  pDx1,    // half x length at -pDz,-pDy
0079                         G4double  pDx2,    // half x length at -pDz,+pDy
0080                         G4double  pDy2,    // half y length at +pDz
0081                         G4double  pDx3,    // half x length at +pDz,-pDy
0082                         G4double  pDx4,    // half x length at +pDz,+pDy
0083                         G4double  pAlph    // tilt angle
0084                   );
0085  
0086     ~G4TwistedTrap() override;
0087 
0088     // accessors
0089 
0090     inline G4double GetY1HalfLength() const { return GetDy1() ; }
0091     inline G4double GetX1HalfLength() const { return GetDx1() ; }
0092     inline G4double GetX2HalfLength() const { return GetDx2() ; }
0093     inline G4double GetY2HalfLength() const { return GetDy2() ; }
0094     inline G4double GetX3HalfLength() const { return GetDx3() ; }
0095     inline G4double GetX4HalfLength() const { return GetDx4() ; }
0096     inline G4double GetZHalfLength()  const { return GetDz()  ; }
0097     inline G4double GetPhiTwist()     const { return GetTwistAngle() ; }
0098     inline G4double GetTiltAngleAlpha()    const { return GetAlpha() ; }
0099     inline G4double GetPolarAngleTheta()   const { return GetTheta() ; }
0100     inline G4double GetAzimuthalAnglePhi() const { return GetPhi()   ; }
0101 
0102     G4GeometryType GetEntityType() const override;
0103 
0104     G4VSolid* Clone() const override;
0105 
0106     std::ostream &StreamInfo(std::ostream& os) const override;
0107 
0108     G4TwistedTrap(__void__&);
0109       // Fake default constructor for usage restricted to direct object
0110       // persistency for clients requiring preallocation of memory for
0111       // persistifiable objects.
0112 
0113     G4TwistedTrap(const G4TwistedTrap& rhs);
0114     G4TwistedTrap& operator=(const G4TwistedTrap& rhs); 
0115       // Copy constructor and assignment operator.
0116 } ;
0117 
0118 #endif