// // ******************************************************************** // * License and Disclaimer * // * * // * The Geant4 software is copyright of the Copyright Holders of * // * the Geant4 Collaboration. It is provided under the terms and * // * conditions of the Geant4 Software License, included in the file * // * LICENSE and available at http://cern.ch/geant4/license . These * // * include a list of copyright holders. * // * * // * Neither the authors of this software system, nor their employing * // * institutes,nor the agencies providing financial support for this * // * work make any representation or warranty, express or implied, * // * regarding this software system or assume any liability for its * // * use. Please see the license in the file LICENSE and URL above * // * for the full disclaimer and the limitation of liability. * // * * // * This code implementation is the result of the scientific and * // * technical work of the GEANT4 collaboration. * // * By using, copying, modifying or distributing the software (or * // * any work based on the software) you agree to acknowledge its * // * use in resulting scientific publications, and indicate your * // * acceptance of all terms of the Geant4 Software license. * // ******************************************************************** // // // $Id: G4BREPSolid.hh,v 1.17 2006/10/19 15:35:36 gcosmo Exp $ // GEANT4 tag $Name: geant4-09-02-ref-02 $ // // ---------------------------------------------------------------------- // Class G4BREPSolid // // Class description: // // Base class for generic Boundary REPresentation solid. // Authors: J.Sulkimo, P.Urban. // Revisions by: L.Broglia, G.Cosmo. // ---------------------------------------------------------------------- #ifndef __SOLID_H #define __SOLID_H #include "G4VSolid.hh" #include "G4Surface.hh" #include "G4Axis2Placement3D.hh" #include "G4PointRat.hh" #include "G4BoundingBox3D.hh" class G4Ray; class G4BREPSolid : public G4VSolid { public: // with description G4BREPSolid(const G4String& name); G4BREPSolid(const G4String&, G4Surface**, G4int); virtual ~G4BREPSolid(); // Constructors & destructor virtual void Initialize(); // Calculates the bounding box for solids and surfaces. // Converts concave planes to convex. G4bool CalculateExtent(const EAxis pAxis , const G4VoxelLimits& pVoxelLimit, const G4AffineTransform& pTransform , G4double& pMin , G4double& pMax ) const; // Calculate the minimum and maximum extent of the solid, when under the // specified transform, and within the specified limits. If the solid // is not intersected by the region, return false, else return true. virtual EInside Inside(register const G4ThreeVector& Pt) const; // Determines if the point Pt is inside, outside or on the surface // of the solid. virtual G4ThreeVector SurfaceNormal(const G4ThreeVector&) const; // Calculates the normal of the surface at a point on the surface // The sense of the normal depends on the sense of the surface. virtual G4double DistanceToIn(const G4ThreeVector&) const; // Calculates the shortest distance ("safety") from a point // outside the solid to any boundary of this solid. // Return 0 if the point is already inside. virtual G4double DistanceToIn(register const G4ThreeVector& Pt, register const G4ThreeVector& V) const; // Calculates the distance from a point Pt outside the solid // to the solid's boundary along a specified direction vector V. // Note: Intersections with boundaries less than the tolerance must // be ignored if the direction is away from the boundary. virtual G4double DistanceToOut(const G4ThreeVector&) const; // Calculates the shortest distance ("safety") from a point inside the // solid to any boundary of this solid. // Return 0 if the point is already outside. virtual G4double DistanceToOut(register const G4ThreeVector& Pt, register const G4ThreeVector& V, const G4bool calcNorm=false , G4bool *validNorm=0 , G4ThreeVector *n=0 ) const; // Calculates the distance from a point inside the solid to the solid`s // boundary along a specified direction vector. // Return 0 if the point is already outside. // Note: If the shortest distance to a boundary is less than the // tolerance, it is ignored. This allows for a point within a // tolerant boundary to leave immediately. G4Point3D Scope() const; // Utility function to determine the maximum scope of the solid // in the coordinates X, Y, Z. Returned as a G4Point3D. virtual G4String GetEntityType() const; // Returns identifier for solid type entity. // A generic BREP solid is considered a "Closed_Shell". virtual std::ostream& StreamInfo(std::ostream& os) const; // Streams solid contents to output stream. void DescribeYourselfTo (G4VGraphicsScene& scene) const; // Dispatch function which identifies the solid to the graphics scene. G4Polyhedron* CreatePolyhedron () const; G4NURBS* CreateNURBS () const; // Create a G4Polyhedron/G4NURBS/... (It is the caller's responsibility // to delete it). A null pointer means "not created". virtual G4Polyhedron* GetPolyhedron () const; // Smart access function - creates on request and stores for future // access. A null pointer means "not available". G4int Intersect(register const G4Ray&) const; // Gets the roughly calculated closest intersection point for // a b_spline and the accurate point for others. inline G4Surface* GetSurface(G4int) const; inline void Active(G4int) const; inline G4int Active() const; inline G4double GetShortestDistance() const; inline G4int GetId() const; inline void SetId(G4int); inline const G4String& GetName() const; inline void SetName(const G4String& name); inline G4int GetNumberOfFaces() const; inline G4int GetNumberOfSolids() const; inline const G4Axis2Placement3D* GetPlace() const; inline const G4BoundingBox3D* GetBBox() const; // Accessors methods. inline G4int GetCubVolStatistics() const; inline G4double GetCubVolEpsilon() const; inline void SetCubVolStatistics(G4int st); inline void SetCubVolEpsilon(G4double ep); inline G4int GetAreaStatistics() const; inline G4double GetAreaAccuracy() const; inline void SetAreaStatistics(G4int st); inline void SetAreaAccuracy(G4double ep); // Accessors methods. public: inline G4double GetCubicVolume(); // Returns an estimation of the geometrical cubic volume of the // solid. Caches the computed value once computed the first time. inline G4double GetSurfaceArea(); // Returns an estimation of the geometrical surface area of the // solid. Caches the computed value once computed the first time. inline G4double IntersectionDistance() const; inline void IntersectionDistance(G4double) const; // Gets and sets intersection distance. virtual void Reset() const; // Resets all distance attributes. public: // without description G4BREPSolid(__void__&); // Fake default constructor for usage restricted to direct object // persistency for clients requiring preallocation of memory for // persistifiable objects. protected: G4ThreeVectorList* CreateRotatedVertices(const G4AffineTransform&) const; G4bool IsConvex(); virtual void CalcBBoxes(); // Calculates the bounding boxes for the surfaces and for the solid. void CheckSurfaceNormals(); void RemoveHiddenFaces(register const G4Ray& G4Rayref, G4int) const; // Deactivates the planar faces that are on the "back" side of a solid. // B-splines are not handled by this function. Also cases where the ray // starting point is Inside the bbox of the solid are ignored as we don't // know if the starting point is Inside the actual solid except for // axis-oriented box-like solids. void TestSurfaceBBoxes(register const G4Ray&) const; // Tests the bounding-box to all surfaces in List. // For planar faces the intersection is instead evaluated. inline G4int StartInside() const; inline void StartInside(G4int si) const; inline void QuickSort( register G4Surface** SrfVec, register G4int left, register G4int right) const; protected: static G4int NumberOfSolids; static G4Ray Track; static G4double ShortestDistance; G4int Box, Convex, AxisBox, PlaneSolid; G4Axis2Placement3D* place; G4BoundingBox3D* bbox; G4double intersectionDistance; G4int active; G4int startInside; G4int nb_of_surfaces; G4Point3D intersection_point; G4Surface** SurfaceVec; G4double RealDist; G4String solidname; G4int Id; private: G4int fStatistics; G4double fCubVolEpsilon; G4double fAreaAccuracy; G4double fCubicVolume; G4double fSurfaceArea; // Statistics, error accuracy and cached value for volume and area. mutable G4Polyhedron* fpPolyhedron; G4BREPSolid(const G4BREPSolid&); G4BREPSolid& operator=(const G4BREPSolid&); // Private copy constructor and assignment operator. G4int IsBox(); G4int FinalEvaluation(register const G4Ray&, G4int =0) const; }; #include "G4BREPSolid.icc" #endif