| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4FCylindricalSurface.hh,v 1.13 2006/06/29 18:39:25 gunter Exp $
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| 28 | // GEANT4 tag $Name: HEAD $
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| 29 | //
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| 30 | // ----------------------------------------------------------------------
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| 31 | // Class G4FCylindricalSurface
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| 32 | //
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| 33 | // Class Description:
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| 34 | //
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| 35 | // Definition of a generic bounded cylindrical surface.
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| 36 | //
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| 37 | // Position.axis| radius
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| 38 | // >|---|<---------
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| 39 | // |
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| 40 | // -- +---|---+
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| 41 | // l | | | |
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| 42 | // e | | | |
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| 43 | // n | | | |
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| 44 | // g | | | |
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| 45 | // t | | | |
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| 46 | // h | | | |
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| 47 | // -- +---|---+
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| 48 | // Position
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| 49 |
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| 50 | // The code for G4CylindricalSurface has been derived from the original
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| 51 | // implementation in the "Gismo" package.
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| 52 | //
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| 53 | // Author: A.Breakstone
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| 54 | // Adaptation: J.Sulkimo, P.Urban.
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| 55 | // Revisions by: L.Broglia, G.Cosmo.
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| 56 | // ----------------------------------------------------------------------
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| 57 | #ifndef __FCYLINDER_H
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| 58 | #define __FCYLINDER_H
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| 59 |
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| 60 | #include "G4PointRat.hh"
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| 61 | #include "G4Axis2Placement3D.hh"
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| 62 | #include "G4Surface.hh"
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| 63 |
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| 64 |
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| 65 | class G4FCylindricalSurface : public G4Surface
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| 66 | {
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| 67 |
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| 68 | public: // with description
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| 69 |
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| 70 | G4FCylindricalSurface();
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| 71 | // Default constructor.
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| 72 |
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| 73 | G4FCylindricalSurface( const G4Point3D& o,
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| 74 | const G4Vector3D& a,
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| 75 | G4double r,
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| 76 | G4double l );
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| 77 | // o : origin.
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| 78 | // a : axis.
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| 79 | // r : radius.
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| 80 | // l : length.
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| 81 |
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| 82 | virtual ~G4FCylindricalSurface();
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| 83 | // Destructor.
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| 84 |
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| 85 | inline G4int operator==( const G4FCylindricalSurface& c ) const;
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| 86 | // Equality operator.
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| 87 |
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| 88 | virtual G4Vector3D SurfaceNormal( const G4Point3D& p ) const;
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| 89 | // Returns the Normal unit vector to the G4FCylindricalSurface at a point
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| 90 | // p on (or nearly on) the G4FCylindricalSurface.
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| 91 |
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| 92 | virtual G4int Inside( const G4Vector3D& x ) const;
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| 93 | // Returns 1 if the point x is Inside the G4FCylindricalSurface,
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| 94 | // returns 0 otherwise.
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| 95 |
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| 96 | inline G4String GetEntityType() const;
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| 97 | // Returns the shape identifier.
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| 98 |
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| 99 | G4int Intersect(const G4Ray&);
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| 100 | // Counts the number of intersections of a bounded cylindrical surface
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| 101 | // by a ray. At first, it calculates the intersections with the infinite
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| 102 | // cylindrical surface. Then, it counts the intersections within the
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| 103 | // finite cylindrical surface boundaries, and sets the "distance" to the
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| 104 | // closest distance from the start point to the nearest intersection.
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| 105 | // If the point is on the surface it returns either the intersection with
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| 106 | // the opposite surface or kInfinity.
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| 107 | // If no intersection is found, it sets distance = kInfinity and returns 0.
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| 108 |
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| 109 | virtual G4double HowNear( const G4Vector3D& x ) const;
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| 110 | // Computes the shortest distance from the point x to the
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| 111 | // G4FCylindricalSurface. The distance will be always positive.
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| 112 |
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| 113 | void CalcBBox();
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| 114 | // Computes the bounding box.
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| 115 |
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| 116 | virtual const char* NameOf() const;
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| 117 | // Returns the class name.
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| 118 |
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| 119 | virtual void PrintOn( std::ostream& os = G4cout ) const;
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| 120 | // Printing function.
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| 121 |
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| 122 | virtual G4int WithinBoundary( const G4Vector3D& x ) const;
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| 123 | // Returns 1 if the point x is within the boundary, 0 otherwise.
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| 124 |
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| 125 | virtual G4double Scale() const;
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| 126 | // Return the radius of a G4FCylindricalSurface.
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| 127 | // Used for Scale-invariant tests of surface thickness.
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| 128 | // If the radius is zero, it returns the length.
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| 129 |
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| 130 | virtual G4double Area() const;
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| 131 | // Calculates the area of a G4FCylindricalSurface.
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| 132 |
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| 133 | virtual void resize( G4double r, G4double l );
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| 134 | // Changes the radius and length of the G4FCylindricalSurface:
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| 135 | // the first (input) argument is the new radius;
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| 136 | // the second (input) argument is the new length.
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| 137 |
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| 138 | inline G4double GetLength() const;
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| 139 | inline G4Vector3D GetAxis() const;
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| 140 | inline G4double GetRadius() const;
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| 141 | void SetRadius( G4double r );
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| 142 | // Get/Set methods for the geometrical data of the G4FCylindricalSurface.
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| 143 |
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| 144 | public: // without description
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| 145 |
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| 146 | void InitValues();
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| 147 | // Re-calculates the private values of the G4FCylindrical surface
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| 148 | // before the Intersect and HowNear function if the G4FCylindrical
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| 149 | // was created by the STEP interface.
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| 150 |
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| 151 | protected:
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| 152 |
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| 153 | G4Axis2Placement3D Position;
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| 154 | G4double radius;
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| 155 | G4double length;
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| 156 |
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| 157 | private:
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| 158 |
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| 159 | G4FCylindricalSurface(const G4FCylindricalSurface&);
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| 160 | G4FCylindricalSurface& operator=(const G4FCylindricalSurface&);
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| 161 | // Private copy constructor and assignment operator.
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| 162 |
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| 163 | };
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| 164 |
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| 165 | #include "G4FCylindricalSurface.icc"
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| 166 |
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| 167 | #endif
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