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// $Id: G4ExtrudedSolid.hh 67011 2013-01-29 16:17:41Z gcosmo $
//
//
// --------------------------------------------------------------------
// GEANT 4 class header file
//
//
// G4ExtrudedSolid
//
// Class description:
//
// G4ExtrudedSolid is a solid which represents the extrusion of an arbitrary
// polygon with fixed outline in the defined Z sections.
// The z-sides of the solid are the scaled versions of the same polygon.
// The solid is implemented as a specification of G4TessellatedSolid.
//
// Parameters in the constructor:
// const G4String& pName - solid name
// std::vector<G4TwoVector> polygon - the vertices of the outlined polygon
// defined in clockwise or anti-clockwise order
// std::vector<ZSection> - the z-sections defined by
// z position, offset and scale
// in increasing z-position order
//
// Parameters in the special constructor (for solid with 2 z-sections:
// G4double halfZ - the solid half length in Z
// G4TwoVector off1 - offset of the side in -halfZ
// G4double scale1 - scale of the side in -halfZ
// G4TwoVector off2 - offset of the side in +halfZ
// G4double scale2 - scale of the side in -halfZ
// Author:
// Ivana Hrivnacova, IPN Orsay
// --------------------------------------------------------------------
#ifndef G4ExtrudedSolid_HH
#define G4ExtrudedSolid_HH
#include <vector>
#include "G4TwoVector.hh"
#include "G4TessellatedSolid.hh"
class G4VFacet;
class G4ExtrudedSolid : public G4TessellatedSolid
{
public: // without description
struct ZSection
{
ZSection(G4double z, G4TwoVector offset, G4double scale)
: fZ(z), fOffset(offset), fScale(scale) {}
G4double fZ;
G4TwoVector fOffset;
G4double fScale;
};
public: // with description
G4ExtrudedSolid( const G4String& pName,
std::vector<G4TwoVector> polygon,
std::vector<ZSection> zsections);
// General constructor
G4ExtrudedSolid( const G4String& pName,
std::vector<G4TwoVector> polygon,
G4double halfZ,
G4TwoVector off1, G4double scale1,
G4TwoVector off2, G4double scale2 );
// Special constructor for solid with 2 z-sections
virtual ~G4ExtrudedSolid();
// Destructor
// Accessors
inline G4int GetNofVertices() const;
inline G4TwoVector GetVertex(G4int index) const;
inline std::vector<G4TwoVector> GetPolygon() const;
inline G4int GetNofZSections() const;
inline ZSection GetZSection(G4int index) const;
inline std::vector<ZSection> GetZSections() const;
// Solid methods
EInside Inside (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;
G4GeometryType GetEntityType () const;
G4VSolid* Clone() const;
std::ostream& StreamInfo(std::ostream &os) const;
public: // without description
G4ExtrudedSolid(__void__&);
// Fake default constructor for usage restricted to direct object
// persistency for clients requiring preallocation of memory for
// persistifiable objects.
G4ExtrudedSolid(const G4ExtrudedSolid& rhs);
G4ExtrudedSolid& operator=(const G4ExtrudedSolid& rhs);
// Copy constructor and assignment operator.
private:
void ComputeProjectionParameters();
G4ThreeVector GetVertex(G4int iz, G4int ind) const;
G4TwoVector ProjectPoint(const G4ThreeVector& point) const;
G4bool IsSameLine(G4TwoVector p,
G4TwoVector l1, G4TwoVector l2) const;
G4bool IsSameLineSegment(G4TwoVector p,
G4TwoVector l1, G4TwoVector l2) const;
G4bool IsSameSide(G4TwoVector p1, G4TwoVector p2,
G4TwoVector l1, G4TwoVector l2) const;
G4bool IsPointInside(G4TwoVector a, G4TwoVector b, G4TwoVector c,
G4TwoVector p) const;
G4double GetAngle(G4TwoVector p0, G4TwoVector pa, G4TwoVector pb) const;
G4VFacet* MakeDownFacet(G4int ind1, G4int ind2, G4int ind3) const;
G4VFacet* MakeUpFacet(G4int ind1, G4int ind2, G4int ind3) const;
G4bool AddGeneralPolygonFacets();
G4bool MakeFacets();
G4bool IsConvex() const;
private:
G4int fNv;
G4int fNz;
std::vector<G4TwoVector> fPolygon;
std::vector<ZSection> fZSections;
std::vector< std::vector<G4int> > fTriangles;
G4bool fIsConvex;
G4GeometryType fGeometryType;
std::vector<G4double> fKScales;
std::vector<G4double> fScale0s;
std::vector<G4TwoVector> fKOffsets;
std::vector<G4TwoVector> fOffset0s;
};
#include "G4ExtrudedSolid.icc"
#endif