Gabriele Cosmo
302 lines
9.9 KiB
C++
302 lines
9.9 KiB
C++
// This code implementation is the intellectual property of
|
|
// the GEANT4 collaboration.
|
|
//
|
|
// By copying, distributing or modifying the Program (or any work
|
|
// based on the Program) you indicate your acceptance of this statement,
|
|
// and all its terms.
|
|
//
|
|
// $Id: G4Trap.hh,v 1.5 2000/11/02 17:06:39 gcosmo Exp $
|
|
// GEANT4 tag $Name: geant4-03-00 $
|
|
//
|
|
//
|
|
// --------------------------------------------------------------------
|
|
// GEANT 4 class header file
|
|
//
|
|
// G4Trap
|
|
//
|
|
// Class description:
|
|
//
|
|
// A G4Trap is a general trapezoid: The faces perpendicular to the
|
|
// z planes are trapezia, and their centres are not necessarily on
|
|
// a line parallel to the z axis.
|
|
//
|
|
// Note that of the 11 parameters described below, only 9 are really
|
|
// independent - a check for planarity is made in the calculation of the
|
|
// equation for each plane. If the planes are not parallel, a call to
|
|
// G4Exception is made.
|
|
//
|
|
// pDz Half-length along the z-axis
|
|
// pTheta Polar angle of the line joining the centres of the faces
|
|
// at -/+pDz
|
|
// pPhi Azimuthal angle of the line joing the centre of the face at
|
|
// -pDz to the centre of the face at +pDz
|
|
// pDy1 Half-length along y of the face at -pDz
|
|
// pDx1 Half-length along x of the side at y=-pDy1 of the face at -pDz
|
|
// pDx2 Half-length along x of the side at y=+pDy1 of the face at -pDz
|
|
// pAlp1 Angle with respect to the y axis from the centre of the side
|
|
// at y=-pDy1 to the centre at y=+pDy1 of the face at -pDz
|
|
//
|
|
// pDy2 Half-length along y of the face at +pDz
|
|
// pDx3 Half-length along x of the side at y=-pDy2 of the face at +pDz
|
|
// pDx4 Half-length along x of the side at y=+pDy2 of the face at +pDz
|
|
// pAlp2 Angle with respect to the y axis from the centre of the side
|
|
// at y=-pDy2 to the centre at y=+pDy2 of the face at +pDz
|
|
//
|
|
//
|
|
// Member Data:
|
|
//
|
|
// fDz Half-length along the z axis
|
|
// fTthetaCphi = tan(pTheta)*cos(pPhi) These combinations are suitable for
|
|
// fTthetaSphi = tan(pTheta)*sin(pPhi) creation of the trapezoid corners
|
|
//
|
|
// fDy1 Half-length along y of the face at -fDz
|
|
// fDx1 Half-length along x of the side at y=-fDy1 of the face at -fDz
|
|
// fDx2 Half-length along x of the side at y=+fDy1 of the face at -fDz
|
|
// fTalpha1 Tan of Angle with respect to the y axis from the centre of
|
|
// the side at y=-fDy1 to the centre at y=+fDy1 of the face
|
|
// at -fDz
|
|
//
|
|
// fDy2 Half-length along y of the face at +fDz
|
|
// fDx3 Half-length along x of the side at y=-fDy2 of the face at +fDz
|
|
// fDx4 Half-length along x of the side at y=+fDy2 of the face at +fDz
|
|
// fTalpha2 Tan of Angle with respect to the y axis from the centre of
|
|
// the side at y=-fDy1 to the centre at y=+fDy1 of the face at -fDz
|
|
//
|
|
// TrapSidePlane fPlanes[4] Plane equations of the faces not at +/-fDz
|
|
// *** order is important !!!
|
|
//
|
|
//
|
|
// Member functions:
|
|
//
|
|
// As inherited from G4CSGSolid + Constructors
|
|
//
|
|
// G4Trap( const G4String& pName,
|
|
// G4double pDz,
|
|
// G4double pTheta, G4double pPhi,
|
|
// G4double pDy1, G4double pDx1, G4double pDx2,
|
|
// G4double pAlp1,
|
|
// G4double pDy2, G4double pDx3, G4double pDx4,
|
|
// G4double pAlp2)
|
|
//
|
|
// - which prepare plane equations and corner coordinates from
|
|
// parameters
|
|
//
|
|
// G4Trap( const G4string& pName,
|
|
// const G4ThreeVector pt[8])
|
|
//
|
|
// - which prepare plane equations and parameters from corner
|
|
// coordinates
|
|
//
|
|
// G4Trap( const G4String& pName,
|
|
// G4double pZ,
|
|
// G4double pY,
|
|
// G4double pX, G4double pLTX);
|
|
//
|
|
// - for Right Angular Wedge from STEP
|
|
//
|
|
// & Constructor for G4Trd
|
|
//
|
|
// G4Trap( const G4String& pName,
|
|
// G4double pDx1, G4double pDx2,
|
|
// G4double pDy1, G4double pDy2,
|
|
// G4double pDz);
|
|
//
|
|
// & Constructor for G4Para
|
|
//
|
|
// G4Trap(const G4String& pName,
|
|
// G4double pDx, G4double pDy, G4double pDz,
|
|
// G4double pAlpha, G4double pTheta, G4double pPhi);
|
|
//
|
|
// + Access functions that return the respective parameter
|
|
//
|
|
// G4double GetZHalfLength() const
|
|
// G4ThreeVector GetSymAxis() const
|
|
// - Returns coordinates of unit vector along straight
|
|
// line joining centers of -/+fDz planes
|
|
// G4double GetYHalfLength1() const
|
|
// G4double GetXHalfLength1() const
|
|
// G4double GetXHalfLength2() const
|
|
// G4double GetTanAlpha1() const
|
|
//
|
|
// G4double GetYHalfLength2() const
|
|
// G4double GetXHalfLength3() const
|
|
// G4double GetXHalfLength4() const
|
|
// G4double GetTanAlpha2() const
|
|
//
|
|
// TrapSidePlane GetSidePlane(G4int n ) const ; n = 0,1,2,3
|
|
//
|
|
// Protected:
|
|
//
|
|
// G4bool MakePlane( G4ThreeVector& p1,
|
|
// G4ThreeVector& p2,
|
|
// G4ThreeVector& p3,
|
|
// G4ThreeVector& p4,
|
|
// TrapSidePlane& plane )
|
|
//
|
|
//
|
|
// G4ThreeVectorList*
|
|
// CreateRotatedVertices(const G4Transform& pTransform) const
|
|
//
|
|
// - Create the List of transformed vertices in the format required
|
|
// for G4CSGSolid:: ClipCrossSection and ClipBetweenSections.
|
|
|
|
// History:
|
|
//
|
|
// 23.3.94 P.Kent: Old C++ code converted to tolerant geometry
|
|
// 9.9.96 V.Grichine: Final modifications before to commit
|
|
// 1.11.96 V.Grichine Costructors for Right Angular Wedge from STEP & G4Trd/Para
|
|
// 8.12.97 J.Allison Added "nominal" contructor and method SetAllParameters.
|
|
// --------------------------------------------------------------------
|
|
|
|
#ifndef G4Trap_HH
|
|
#define G4Trap_HH
|
|
|
|
#include "G4CSGSolid.hh"
|
|
|
|
struct TrapSidePlane
|
|
{
|
|
G4double a,b,c,d; // Normal unit vector (a,b,c) and offset (d)
|
|
// => Ax+By+Cz+D=0
|
|
};
|
|
|
|
class G4Trap : public G4CSGSolid
|
|
{
|
|
|
|
public:
|
|
|
|
// The most general constructor for G4Trap
|
|
|
|
G4Trap( const G4String& pName,
|
|
G4double pDz,
|
|
G4double pTheta, G4double pPhi,
|
|
G4double pDy1, G4double pDx1, G4double pDx2,
|
|
G4double pAlp1,
|
|
G4double pDy2, G4double pDx3, G4double pDx4,
|
|
G4double pAlp2);
|
|
|
|
G4Trap( const G4String& pName,
|
|
const G4ThreeVector pt[8]) ;
|
|
|
|
// Constructor for Right Angular Wedge from STEP (assumes pLTX<=pX)
|
|
|
|
G4Trap( const G4String& pName,
|
|
G4double pZ,
|
|
G4double pY,
|
|
G4double pX, G4double pLTX);
|
|
|
|
// Constructor for G4Trd
|
|
|
|
G4Trap( const G4String& pName,
|
|
G4double pDx1, G4double pDx2,
|
|
G4double pDy1, G4double pDy2,
|
|
G4double pDz);
|
|
|
|
// Constructor for G4Para
|
|
|
|
G4Trap(const G4String& pName,
|
|
G4double pDx, G4double pDy, G4double pDz,
|
|
G4double pAlpha, G4double pTheta, G4double pPhi);
|
|
|
|
virtual ~G4Trap() ;
|
|
|
|
// Constructor for "nominal" G4Trap whose parameters are to be set
|
|
// by a G4VParamaterisation later.
|
|
|
|
G4Trap(const G4String& pName);
|
|
|
|
// Access functions
|
|
|
|
G4double GetZHalfLength() const { return fDz ; }
|
|
G4ThreeVector GetSymAxis() const
|
|
{
|
|
G4double cosTheta = 1.0/sqrt(1+fTthetaCphi*fTthetaCphi +
|
|
fTthetaSphi*fTthetaSphi) ;
|
|
|
|
return G4ThreeVector(fTthetaCphi*cosTheta,
|
|
fTthetaSphi*cosTheta,
|
|
cosTheta) ;
|
|
}
|
|
G4double GetYHalfLength1() const { return fDy1 ; }
|
|
G4double GetXHalfLength1() const { return fDx1 ; }
|
|
G4double GetXHalfLength2() const { return fDx2 ; }
|
|
G4double GetTanAlpha1() const { return fTalpha1 ; }
|
|
G4double GetYHalfLength2() const { return fDy2 ; }
|
|
G4double GetXHalfLength3() const { return fDx3 ; }
|
|
G4double GetXHalfLength4() const { return fDx4 ; }
|
|
G4double GetTanAlpha2() const { return fTalpha2 ; }
|
|
TrapSidePlane GetSidePlane(G4int n ) const { return fPlanes[n] ; }
|
|
|
|
// Set Methods
|
|
|
|
void SetAllParameters ( G4double pDz,
|
|
G4double pTheta,
|
|
G4double pPhi,
|
|
G4double pDy1,
|
|
G4double pDx1,
|
|
G4double pDx2,
|
|
G4double pAlp1,
|
|
G4double pDy2,
|
|
G4double pDx3,
|
|
G4double pDx4,
|
|
G4double pAlp2);
|
|
|
|
// Methods
|
|
|
|
void ComputeDimensions(G4VPVParameterisation* p,
|
|
const G4int n,
|
|
const G4VPhysicalVolume* pRep);
|
|
|
|
G4bool CalculateExtent(const EAxis pAxis,
|
|
const G4VoxelLimits& pVoxelLimit,
|
|
const G4AffineTransform& pTransform,
|
|
G4double& pMin, G4double& pMax) const;
|
|
|
|
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;
|
|
|
|
G4GeometryType GetEntityType() const { return G4String("G4Trap"); }
|
|
// Naming method (pseudo-RTTI : run-time type identification
|
|
|
|
// Visualisation functions
|
|
|
|
void DescribeYourselfTo (G4VGraphicsScene& scene) const;
|
|
G4Polyhedron* CreatePolyhedron () const;
|
|
G4NURBS* CreateNURBS () const;
|
|
|
|
protected:
|
|
|
|
G4bool MakePlanes();
|
|
G4bool MakePlane( const G4ThreeVector& p1,
|
|
const G4ThreeVector& p2,
|
|
const G4ThreeVector& p3,
|
|
const G4ThreeVector& p4,
|
|
TrapSidePlane& plane ) ;
|
|
|
|
G4ThreeVectorList*
|
|
CreateRotatedVertices(const G4AffineTransform& pTransform) const;
|
|
|
|
private:
|
|
|
|
G4double fDz,fTthetaCphi,fTthetaSphi;
|
|
G4double fDy1,fDx1,fDx2,fTalpha1;
|
|
G4double fDy2,fDx3,fDx4,fTalpha2;
|
|
TrapSidePlane fPlanes[4];
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
// **************************** End of G4Trap.hh *****************************************
|