Gabriele Cosmo
253 lines
9.6 KiB
C++
253 lines
9.6 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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//
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// $Id: G4BREPSolid.hh,v 1.17 2006/10/19 15:35:36 gcosmo Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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// ----------------------------------------------------------------------
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// Class G4BREPSolid
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//
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// Class description:
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//
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// Base class for generic Boundary REPresentation solid.
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// Authors: J.Sulkimo, P.Urban.
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// Revisions by: L.Broglia, G.Cosmo.
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// ----------------------------------------------------------------------
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#ifndef __SOLID_H
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#define __SOLID_H
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#include "G4VSolid.hh"
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#include "G4Surface.hh"
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#include "G4Axis2Placement3D.hh"
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#include "G4PointRat.hh"
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#include "G4BoundingBox3D.hh"
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class G4Ray;
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class G4BREPSolid : public G4VSolid
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{
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public: // with description
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G4BREPSolid(const G4String& name);
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G4BREPSolid(const G4String&, G4Surface**, G4int);
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virtual ~G4BREPSolid();
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// Constructors & destructor
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virtual void Initialize();
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// Calculates the bounding box for solids and surfaces.
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// Converts concave planes to convex.
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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 ,
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G4double& pMax ) const;
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// Calculate the minimum and maximum extent of the solid, when under the
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// specified transform, and within the specified limits. If the solid
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// is not intersected by the region, return false, else return true.
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virtual EInside Inside(register const G4ThreeVector& Pt) const;
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// Determines if the point Pt is inside, outside or on the surface
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// of the solid.
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virtual G4ThreeVector SurfaceNormal(const G4ThreeVector&) const;
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// Calculates the normal of the surface at a point on the surface
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// The sense of the normal depends on the sense of the surface.
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virtual G4double DistanceToIn(const G4ThreeVector&) const;
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// Calculates the shortest distance ("safety") from a point
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// outside the solid to any boundary of this solid.
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// Return 0 if the point is already inside.
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virtual G4double DistanceToIn(register const G4ThreeVector& Pt,
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register const G4ThreeVector& V) const;
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// Calculates the distance from a point Pt outside the solid
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// to the solid's boundary along a specified direction vector V.
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// Note: Intersections with boundaries less than the tolerance must
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// be ignored if the direction is away from the boundary.
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virtual G4double DistanceToOut(const G4ThreeVector&) const;
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// Calculates the shortest distance ("safety") from a point inside the
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// solid to any boundary of this solid.
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// Return 0 if the point is already outside.
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virtual G4double DistanceToOut(register const G4ThreeVector& Pt,
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register const G4ThreeVector& V,
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const G4bool calcNorm=false ,
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G4bool *validNorm=0 ,
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G4ThreeVector *n=0 ) const;
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// Calculates the distance from a point inside the solid to the solid`s
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// boundary along a specified direction vector.
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// Return 0 if the point is already outside.
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// Note: If the shortest distance to a boundary is less than the
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// tolerance, it is ignored. This allows for a point within a
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// tolerant boundary to leave immediately.
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G4Point3D Scope() const;
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// Utility function to determine the maximum scope of the solid
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// in the coordinates X, Y, Z. Returned as a G4Point3D.
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virtual G4String GetEntityType() const;
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// Returns identifier for solid type entity.
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// A generic BREP solid is considered a "Closed_Shell".
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virtual std::ostream& StreamInfo(std::ostream& os) const;
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// Streams solid contents to output stream.
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void DescribeYourselfTo (G4VGraphicsScene& scene) const;
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// Dispatch function which identifies the solid to the graphics scene.
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G4Polyhedron* CreatePolyhedron () const;
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G4NURBS* CreateNURBS () const;
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// Create a G4Polyhedron/G4NURBS/... (It is the caller's responsibility
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// to delete it). A null pointer means "not created".
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virtual G4Polyhedron* GetPolyhedron () const;
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// Smart access function - creates on request and stores for future
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// access. A null pointer means "not available".
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G4int Intersect(register const G4Ray&) const;
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// Gets the roughly calculated closest intersection point for
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// a b_spline and the accurate point for others.
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inline G4Surface* GetSurface(G4int) const;
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inline void Active(G4int) const;
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inline G4int Active() const;
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inline G4double GetShortestDistance() const;
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inline G4int GetId() const;
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inline void SetId(G4int);
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inline const G4String& GetName() const;
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inline void SetName(const G4String& name);
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inline G4int GetNumberOfFaces() const;
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inline G4int GetNumberOfSolids() const;
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inline const G4Axis2Placement3D* GetPlace() const;
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inline const G4BoundingBox3D* GetBBox() const;
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// Accessors methods.
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inline G4int GetCubVolStatistics() const;
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inline G4double GetCubVolEpsilon() const;
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inline void SetCubVolStatistics(G4int st);
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inline void SetCubVolEpsilon(G4double ep);
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inline G4int GetAreaStatistics() const;
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inline G4double GetAreaAccuracy() const;
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inline void SetAreaStatistics(G4int st);
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inline void SetAreaAccuracy(G4double ep);
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// Accessors methods.
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public:
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inline G4double GetCubicVolume();
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// Returns an estimation of the geometrical cubic volume of the
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// solid. Caches the computed value once computed the first time.
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inline G4double GetSurfaceArea();
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// Returns an estimation of the geometrical surface area of the
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// solid. Caches the computed value once computed the first time.
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inline G4double IntersectionDistance() const;
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inline void IntersectionDistance(G4double) const;
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// Gets and sets intersection distance.
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virtual void Reset() const;
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// Resets all distance attributes.
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public: // without description
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G4BREPSolid(__void__&);
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// Fake default constructor for usage restricted to direct object
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// persistency for clients requiring preallocation of memory for
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// persistifiable objects.
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protected:
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G4ThreeVectorList* CreateRotatedVertices(const G4AffineTransform&) const;
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G4bool IsConvex();
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virtual void CalcBBoxes();
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// Calculates the bounding boxes for the surfaces and for the solid.
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void CheckSurfaceNormals();
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void RemoveHiddenFaces(register const G4Ray& G4Rayref, G4int) const;
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// Deactivates the planar faces that are on the "back" side of a solid.
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// B-splines are not handled by this function. Also cases where the ray
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// starting point is Inside the bbox of the solid are ignored as we don't
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// know if the starting point is Inside the actual solid except for
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// axis-oriented box-like solids.
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void TestSurfaceBBoxes(register const G4Ray&) const;
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// Tests the bounding-box to all surfaces in List.
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// For planar faces the intersection is instead evaluated.
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inline G4int StartInside() const;
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inline void StartInside(G4int si) const;
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inline void QuickSort( register G4Surface** SrfVec,
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register G4int left, register G4int right) const;
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protected:
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static G4int NumberOfSolids;
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static G4Ray Track;
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static G4double ShortestDistance;
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G4int Box, Convex, AxisBox, PlaneSolid;
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G4Axis2Placement3D* place;
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G4BoundingBox3D* bbox;
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G4double intersectionDistance;
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G4int active;
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G4int startInside;
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G4int nb_of_surfaces;
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G4Point3D intersection_point;
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G4Surface** SurfaceVec;
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G4double RealDist;
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G4String solidname;
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G4int Id;
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private:
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G4int fStatistics;
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G4double fCubVolEpsilon;
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G4double fAreaAccuracy;
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G4double fCubicVolume;
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G4double fSurfaceArea;
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// Statistics, error accuracy and cached value for volume and area.
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mutable G4Polyhedron* fpPolyhedron;
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G4BREPSolid(const G4BREPSolid&);
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G4BREPSolid& operator=(const G4BREPSolid&);
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// Private copy constructor and assignment operator.
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G4int IsBox();
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G4int FinalEvaluation(register const G4Ray&, G4int =0) const;
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};
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#include "G4BREPSolid.icc"
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#endif
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