Gabriele Cosmo
183 lines
6.8 KiB
C++
183 lines
6.8 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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// $Id$
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//
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//
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// --------------------------------------------------------------------
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// GEANT 4 class header file
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//
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//
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// G4ExtrudedSolid
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//
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// Class description:
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//
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// G4ExtrudedSolid is a solid which represents the extrusion of an arbitrary
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// polygon with fixed outline in the defined Z sections.
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// The z-sides of the solid are the scaled versions of the same polygon.
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// The solid is implemented as a specification of G4TessellatedSolid.
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//
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// Parameters in the constructor:
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// const G4String& pName - solid name
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// std::vector<G4TwoVector> polygon - the vertices of the outlined polygon
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// defined in clockwise or anti-clockwise order
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// std::vector<ZSection> - the z-sections defined by
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// z position, offset and scale
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// in increasing z-position order
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//
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// Parameters in the special constructor (for solid with 2 z-sections:
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// G4double halfZ - the solid half length in Z
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// G4TwoVector off1 - offset of the side in -halfZ
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// G4double scale1 - scale of the side in -halfZ
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// G4TwoVector off2 - offset of the side in +halfZ
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// G4double scale2 - scale of the side in -halfZ
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// Author:
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// Ivana Hrivnacova, IPN Orsay
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// --------------------------------------------------------------------
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#ifndef G4ExtrudedSolid_HH
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#define G4ExtrudedSolid_HH
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#include <vector>
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#include "G4TwoVector.hh"
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#include "G4TessellatedSolid.hh"
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class G4VFacet;
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class G4ExtrudedSolid : public G4TessellatedSolid
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{
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public: // without description
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struct ZSection
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{
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ZSection(G4double z, G4TwoVector offset, G4double scale)
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: fZ(z), fOffset(offset), fScale(scale) {}
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G4double fZ;
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G4TwoVector fOffset;
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G4double fScale;
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};
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public: // with description
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G4ExtrudedSolid( const G4String& pName,
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std::vector<G4TwoVector> polygon,
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std::vector<ZSection> zsections);
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// General constructor
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G4ExtrudedSolid( const G4String& pName,
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std::vector<G4TwoVector> polygon,
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G4double halfZ,
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G4TwoVector off1, G4double scale1,
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G4TwoVector off2, G4double scale2 );
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// Special constructor for solid with 2 z-sections
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virtual ~G4ExtrudedSolid();
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// Destructor
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// Accessors
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inline G4int GetNofVertices() const;
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inline G4TwoVector GetVertex(G4int index) const;
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inline std::vector<G4TwoVector> GetPolygon() const;
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inline G4int GetNofZSections() const;
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inline ZSection GetZSection(G4int index) const;
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inline std::vector<ZSection> GetZSections() const;
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// Solid methods
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EInside Inside (const G4ThreeVector &p) const;
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G4double DistanceToOut(const G4ThreeVector &p,
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const G4ThreeVector &v,
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const G4bool calcNorm=false,
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G4bool *validNorm=0, G4ThreeVector *n=0) const;
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G4double DistanceToOut (const G4ThreeVector &p) const;
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G4GeometryType GetEntityType () const;
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G4VSolid* Clone() const;
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std::ostream& StreamInfo(std::ostream &os) const;
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public: // without description
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G4ExtrudedSolid(__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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G4ExtrudedSolid(const G4ExtrudedSolid& rhs);
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G4ExtrudedSolid& operator=(const G4ExtrudedSolid& rhs);
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// Copy constructor and assignment operator.
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private:
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void ComputeProjectionParameters();
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G4ThreeVector GetVertex(G4int iz, G4int ind) const;
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G4TwoVector ProjectPoint(const G4ThreeVector& point) const;
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G4bool IsSameLine(G4TwoVector p,
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G4TwoVector l1, G4TwoVector l2) const;
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G4bool IsSameLineSegment(G4TwoVector p,
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G4TwoVector l1, G4TwoVector l2) const;
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G4bool IsSameSide(G4TwoVector p1, G4TwoVector p2,
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G4TwoVector l1, G4TwoVector l2) const;
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G4bool IsPointInside(G4TwoVector a, G4TwoVector b, G4TwoVector c,
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G4TwoVector p) const;
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G4double GetAngle(G4TwoVector p0, G4TwoVector pa, G4TwoVector pb) const;
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G4VFacet* MakeDownFacet(G4int ind1, G4int ind2, G4int ind3) const;
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G4VFacet* MakeUpFacet(G4int ind1, G4int ind2, G4int ind3) const;
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G4bool AddGeneralPolygonFacets();
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G4bool MakeFacets();
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G4bool IsConvex() const;
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private:
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G4int fNv;
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G4int fNz;
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std::vector<G4TwoVector> fPolygon;
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std::vector<ZSection> fZSections;
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std::vector< std::vector<G4int> > fTriangles;
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G4bool fIsConvex;
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G4GeometryType fGeometryType;
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std::vector<G4double> fKScales;
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std::vector<G4double> fScale0s;
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std::vector<G4TwoVector> fKOffsets;
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std::vector<G4TwoVector> fOffset0s;
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};
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#include "G4ExtrudedSolid.icc"
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#endif
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