| 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: G4BREPSolid.hh,v 1.17 2006/10/19 15:35:36 gcosmo Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $
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| 29 | //
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| 30 | // ----------------------------------------------------------------------
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| 31 | // Class G4BREPSolid
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| 32 | //
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| 33 | // Class description:
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| 34 | //
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| 35 | // Base class for generic Boundary REPresentation solid.
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| 36 |
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| 37 | // Authors: J.Sulkimo, P.Urban.
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| 38 | // Revisions by: L.Broglia, G.Cosmo.
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| 39 | // ----------------------------------------------------------------------
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| 40 | #ifndef __SOLID_H
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| 41 | #define __SOLID_H
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| 42 |
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| 43 | #include "G4VSolid.hh"
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| 44 | #include "G4Surface.hh"
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| 45 | #include "G4Axis2Placement3D.hh"
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| 46 | #include "G4PointRat.hh"
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| 47 | #include "G4BoundingBox3D.hh"
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| 48 |
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| 49 | class G4Ray;
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| 50 |
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| 51 | class G4BREPSolid : public G4VSolid
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| 52 | {
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| 53 |
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| 54 | public: // with description
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| 55 |
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| 56 | G4BREPSolid(const G4String& name);
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| 57 | G4BREPSolid(const G4String&, G4Surface**, G4int);
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| 58 | virtual ~G4BREPSolid();
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| 59 | // Constructors & destructor
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| 60 |
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| 61 | virtual void Initialize();
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| 62 | // Calculates the bounding box for solids and surfaces.
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| 63 | // Converts concave planes to convex.
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| 64 |
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| 65 | G4bool CalculateExtent(const EAxis pAxis ,
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| 66 | const G4VoxelLimits& pVoxelLimit,
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| 67 | const G4AffineTransform& pTransform ,
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| 68 | G4double& pMin ,
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| 69 | G4double& pMax ) const;
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| 70 | // Calculate the minimum and maximum extent of the solid, when under the
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| 71 | // specified transform, and within the specified limits. If the solid
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| 72 | // is not intersected by the region, return false, else return true.
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| 73 |
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| 74 | virtual EInside Inside(register const G4ThreeVector& Pt) const;
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| 75 | // Determines if the point Pt is inside, outside or on the surface
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| 76 | // of the solid.
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| 77 |
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| 78 | virtual G4ThreeVector SurfaceNormal(const G4ThreeVector&) const;
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| 79 | // Calculates the normal of the surface at a point on the surface
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| 80 | // The sense of the normal depends on the sense of the surface.
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| 81 |
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| 82 | virtual G4double DistanceToIn(const G4ThreeVector&) const;
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| 83 | // Calculates the shortest distance ("safety") from a point
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| 84 | // outside the solid to any boundary of this solid.
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| 85 | // Return 0 if the point is already inside.
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| 86 |
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| 87 | virtual G4double DistanceToIn(register const G4ThreeVector& Pt,
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| 88 | register const G4ThreeVector& V) const;
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| 89 | // Calculates the distance from a point Pt outside the solid
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| 90 | // to the solid's boundary along a specified direction vector V.
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| 91 | // Note: Intersections with boundaries less than the tolerance must
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| 92 | // be ignored if the direction is away from the boundary.
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| 93 |
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| 94 | virtual G4double DistanceToOut(const G4ThreeVector&) const;
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| 95 | // Calculates the shortest distance ("safety") from a point inside the
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| 96 | // solid to any boundary of this solid.
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| 97 | // Return 0 if the point is already outside.
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| 98 |
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| 99 | virtual G4double DistanceToOut(register const G4ThreeVector& Pt,
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| 100 | register const G4ThreeVector& V,
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| 101 | const G4bool calcNorm=false ,
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| 102 | G4bool *validNorm=0 ,
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| 103 | G4ThreeVector *n=0 ) const;
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| 104 | // Calculates the distance from a point inside the solid to the solid`s
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| 105 | // boundary along a specified direction vector.
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| 106 | // Return 0 if the point is already outside.
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| 107 | // Note: If the shortest distance to a boundary is less than the
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| 108 | // tolerance, it is ignored. This allows for a point within a
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| 109 | // tolerant boundary to leave immediately.
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| 110 |
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| 111 | G4Point3D Scope() const;
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| 112 | // Utility function to determine the maximum scope of the solid
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| 113 | // in the coordinates X, Y, Z. Returned as a G4Point3D.
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| 114 |
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| 115 | virtual G4String GetEntityType() const;
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| 116 | // Returns identifier for solid type entity.
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| 117 | // A generic BREP solid is considered a "Closed_Shell".
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| 118 |
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| 119 | virtual std::ostream& StreamInfo(std::ostream& os) const;
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| 120 | // Streams solid contents to output stream.
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| 121 |
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| 122 | void DescribeYourselfTo (G4VGraphicsScene& scene) const;
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| 123 | // Dispatch function which identifies the solid to the graphics scene.
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| 124 |
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| 125 | G4Polyhedron* CreatePolyhedron () const;
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| 126 | G4NURBS* CreateNURBS () const;
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| 127 | // Create a G4Polyhedron/G4NURBS/... (It is the caller's responsibility
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| 128 | // to delete it). A null pointer means "not created".
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| 129 | virtual G4Polyhedron* GetPolyhedron () const;
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| 130 | // Smart access function - creates on request and stores for future
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| 131 | // access. A null pointer means "not available".
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| 132 |
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| 133 | G4int Intersect(register const G4Ray&) const;
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| 134 | // Gets the roughly calculated closest intersection point for
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| 135 | // a b_spline and the accurate point for others.
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| 136 |
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| 137 | inline G4Surface* GetSurface(G4int) const;
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| 138 | inline void Active(G4int) const;
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| 139 | inline G4int Active() const;
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| 140 | inline G4double GetShortestDistance() const;
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| 141 | inline G4int GetId() const;
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| 142 | inline void SetId(G4int);
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| 143 | inline const G4String& GetName() const;
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| 144 | inline void SetName(const G4String& name);
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| 145 | inline G4int GetNumberOfFaces() const;
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| 146 | inline G4int GetNumberOfSolids() const;
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| 147 | inline const G4Axis2Placement3D* GetPlace() const;
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| 148 | inline const G4BoundingBox3D* GetBBox() const;
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| 149 | // Accessors methods.
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| 150 |
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| 151 | inline G4int GetCubVolStatistics() const;
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| 152 | inline G4double GetCubVolEpsilon() const;
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| 153 | inline void SetCubVolStatistics(G4int st);
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| 154 | inline void SetCubVolEpsilon(G4double ep);
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| 155 | inline G4int GetAreaStatistics() const;
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| 156 | inline G4double GetAreaAccuracy() const;
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| 157 | inline void SetAreaStatistics(G4int st);
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| 158 | inline void SetAreaAccuracy(G4double ep);
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| 159 | // Accessors methods.
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| 160 |
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| 161 | public:
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| 162 |
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| 163 | inline G4double GetCubicVolume();
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| 164 | // Returns an estimation of the geometrical cubic volume of the
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| 165 | // solid. Caches the computed value once computed the first time.
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| 166 | inline G4double GetSurfaceArea();
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| 167 | // Returns an estimation of the geometrical surface area of the
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| 168 | // solid. Caches the computed value once computed the first time.
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| 169 |
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| 170 | inline G4double IntersectionDistance() const;
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| 171 | inline void IntersectionDistance(G4double) const;
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| 172 | // Gets and sets intersection distance.
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| 173 |
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| 174 | virtual void Reset() const;
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| 175 | // Resets all distance attributes.
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| 176 |
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| 177 | public: // without description
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| 178 |
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| 179 | G4BREPSolid(__void__&);
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| 180 | // Fake default constructor for usage restricted to direct object
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| 181 | // persistency for clients requiring preallocation of memory for
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| 182 | // persistifiable objects.
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| 183 |
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| 184 | protected:
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| 185 |
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| 186 | G4ThreeVectorList* CreateRotatedVertices(const G4AffineTransform&) const;
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| 187 | G4bool IsConvex();
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| 188 |
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| 189 | virtual void CalcBBoxes();
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| 190 | // Calculates the bounding boxes for the surfaces and for the solid.
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| 191 |
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| 192 | void CheckSurfaceNormals();
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| 193 | void RemoveHiddenFaces(register const G4Ray& G4Rayref, G4int) const;
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| 194 | // Deactivates the planar faces that are on the "back" side of a solid.
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| 195 | // B-splines are not handled by this function. Also cases where the ray
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| 196 | // starting point is Inside the bbox of the solid are ignored as we don't
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| 197 | // know if the starting point is Inside the actual solid except for
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| 198 | // axis-oriented box-like solids.
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| 199 |
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| 200 | void TestSurfaceBBoxes(register const G4Ray&) const;
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| 201 | // Tests the bounding-box to all surfaces in List.
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| 202 | // For planar faces the intersection is instead evaluated.
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| 203 |
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| 204 | inline G4int StartInside() const;
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| 205 | inline void StartInside(G4int si) const;
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| 206 |
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| 207 | inline void QuickSort( register G4Surface** SrfVec,
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| 208 | register G4int left, register G4int right) const;
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| 209 |
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| 210 | protected:
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| 211 |
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| 212 | static G4int NumberOfSolids;
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| 213 | static G4Ray Track;
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| 214 | static G4double ShortestDistance;
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| 215 |
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| 216 | G4int Box, Convex, AxisBox, PlaneSolid;
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| 217 | G4Axis2Placement3D* place;
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| 218 | G4BoundingBox3D* bbox;
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| 219 | G4double intersectionDistance;
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| 220 | G4int active;
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| 221 | G4int startInside;
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| 222 | G4int nb_of_surfaces;
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| 223 | G4Point3D intersection_point;
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| 224 | G4Surface** SurfaceVec;
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| 225 | G4double RealDist;
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| 226 | G4String solidname;
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| 227 | G4int Id;
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| 228 |
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| 229 |
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| 230 | private:
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| 231 |
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| 232 | G4int fStatistics;
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| 233 | G4double fCubVolEpsilon;
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| 234 | G4double fAreaAccuracy;
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| 235 | G4double fCubicVolume;
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| 236 | G4double fSurfaceArea;
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| 237 | // Statistics, error accuracy and cached value for volume and area.
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| 238 |
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| 239 | mutable G4Polyhedron* fpPolyhedron;
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| 240 |
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| 241 | G4BREPSolid(const G4BREPSolid&);
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| 242 | G4BREPSolid& operator=(const G4BREPSolid&);
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| 243 | // Private copy constructor and assignment operator.
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| 244 |
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| 245 | G4int IsBox();
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| 246 | G4int FinalEvaluation(register const G4Ray&, G4int =0) const;
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| 247 |
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| 248 | };
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| 249 |
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| 250 | #include "G4BREPSolid.icc"
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| 251 |
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| 252 | #endif
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