// // ******************************************************************** // * 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: G4GenericTrap.hh,v 1.13 2010-11-10 10:00:16 gcosmo Exp $ // GEANT4 tag $Name: not supported by cvs2svn $ // // // -------------------------------------------------------------------- // GEANT 4 class header file // // // G4GenericTrap // // Class description: // // G4GenericTrap is a solid which represents an arbitrary trapezoid with // up to 8 vertices standing on two parallel planes perpendicular to Z axis. // // Parameters in the constructor: // - name - solid name // - hz - the solid half length in Z // - vertices - the (x,y) coordinates of vertices: // o first four points: vertices[i], i<4 // are the vertices sitting on the -hz plane; // o last four points: vertices[i], i>=4 // are the vertices sitting on the +hz plane. // // The order of defining the vertices of the solid is the following: // - point 0 is connected with points 1,3,4 // - point 1 is connected with points 0,2,5 // - point 2 is connected with points 1,3,6 // - point 3 is connected with points 0,2,7 // - point 4 is connected with points 0,5,7 // - point 5 is connected with points 1,4,6 // - point 6 is connected with points 2,5,7 // - point 7 is connected with points 3,4,6 // Points can be identical in order to create shapes with less than // 8 vertices. // Authors: // Tatiana Nikitina, CERN; Ivana Hrivnacova, IPN Orsay // Adapted from Root Arb8 implementation, author Andrea Gheata, CERN // ------------------------------------------------------------------- #ifndef G4GenericTrap_HH #define G4GenericTrap_HH #include #include "G4TwoVector.hh" #include "G4VSolid.hh" #include "globals.hh" class G4VFacet; class G4TessellatedSolid; class G4GenericTrap : public G4VSolid { public: // with description G4GenericTrap( const G4String& name, G4double hz, const std::vector& vertices ); // Constructor ~G4GenericTrap(); // Destructor // Accessors inline G4double GetZHalfLength() const; inline G4int GetNofVertices() const; inline G4TwoVector GetVertex(G4int index) const; inline const std::vector& GetVertices() const; inline G4double GetTwistAngle(G4int index) const; inline G4bool IsTwisted() const; inline G4int GetVisSubdivisions() const; inline void SetVisSubdivisions(G4int subdiv); // Solid methods EInside Inside(const G4ThreeVector& p) const; G4ThreeVector SurfaceNormal(const G4ThreeVector& p) const; G4double DistanceToIn(const G4ThreeVector& p, const G4ThreeVector& v) const; G4double DistanceToIn(const G4ThreeVector& p) const; G4double DistanceToOut(const G4ThreeVector& p, const G4ThreeVector& v, const G4bool calcNorm = false, G4bool *validNorm = 0, G4ThreeVector *n = 0) const; G4double DistanceToOut(const G4ThreeVector& p) const; G4bool CalculateExtent(const EAxis pAxis, const G4VoxelLimits& pVoxelLimit, const G4AffineTransform& pTransform, G4double& pmin, G4double& pmax) const; G4GeometryType GetEntityType() const; G4VSolid* Clone() const; std::ostream& StreamInfo(std::ostream& os) const; G4ThreeVector GetPointOnSurface() const ; G4double GetCubicVolume(); G4double GetSurfaceArea(); // Visualisation functions G4Polyhedron* GetPolyhedron () const; void DescribeYourselfTo(G4VGraphicsScene& scene) const; G4VisExtent GetExtent() const; G4Polyhedron* CreatePolyhedron() const; G4NURBS* CreateNURBS() const; public: // without description G4GenericTrap(__void__&); // Fake default constructor for usage restricted to direct object // persistency for clients requiring preallocation of memory for // persistifiable objects. G4GenericTrap(const G4GenericTrap& rhs); G4GenericTrap& operator=(const G4GenericTrap& rhs); // Copy constructor and assignment operator. private: // Internal methods inline void SetTwistAngle(G4int index, G4double twist); G4bool ComputeIsTwisted() ; G4bool CheckOrder(const std::vector& vertices) const; G4bool IsSegCrossing(const G4TwoVector& a, const G4TwoVector& b, const G4TwoVector& c, const G4TwoVector& d) const; G4bool IsSegCrossingZ(const G4TwoVector& a, const G4TwoVector& b, const G4TwoVector& c, const G4TwoVector& d) const; G4ThreeVectorList* CreateRotatedVertices(const G4AffineTransform& pTransform) const; void ReorderVertices(std::vector& vertices) const; void ComputeBBox(); inline G4ThreeVector GetMinimumBBox() const; inline G4ThreeVector GetMaximumBBox() const; G4VFacet* MakeDownFacet(const std::vector& fromVertices, G4int ind1, G4int ind2, G4int ind3) const; G4VFacet* MakeUpFacet(const std::vector& fromVertices, G4int ind1, G4int ind2, G4int ind3) const; G4VFacet* MakeSideFacet(const G4ThreeVector& downVertex0, const G4ThreeVector& downVertex1, const G4ThreeVector& upVertex1, const G4ThreeVector& upVertex0) const; G4TessellatedSolid* CreateTessellatedSolid() const; EInside InsidePolygone(const G4ThreeVector& p, const std::vector& poly) const; G4double DistToPlane(const G4ThreeVector& p, const G4ThreeVector& v, const G4int ipl) const ; G4double DistToTriangle(const G4ThreeVector& p, const G4ThreeVector& v, const G4int ipl) const; G4ThreeVector NormalToPlane(const G4ThreeVector& p, const G4int ipl) const; G4double SafetyToFace(const G4ThreeVector& p, const G4int iseg) const; G4double GetFaceSurfaceArea(const G4ThreeVector& p0, const G4ThreeVector& p1, const G4ThreeVector& p2, const G4ThreeVector& p3) const; protected: mutable G4Polyhedron* fpPolyhedron; private: // static data members static const G4int fgkNofVertices; static const G4double fgkTolerance; // data members G4double fDz; std::vector fVertices; G4bool fIsTwisted; G4double fTwist[4]; G4TessellatedSolid* fTessellatedSolid; G4ThreeVector fMinBBoxVector; G4ThreeVector fMaxBBoxVector; G4int fVisSubdivisions; enum ESide {kUndefined,kXY0,kXY1,kXY2,kXY3,kMZ,kPZ}; // Codes for faces (kXY[num]=num of lateral face,kMZ= minus z face etc) G4double fSurfaceArea; G4double fCubicVolume; // Surface and Volume }; #include "G4GenericTrap.icc" #endif