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geant4/source/geometry/solids/CSG/include/G4PolyconeSide.hh
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2016-06-08 15:09:25 +02:00

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//
// G4PolyconeSide
//
// Declaration of a face that represents one conical side of a polycone
//
#ifndef G4PolyconeSide_hh
#define G4PolyconeSide_hh
#include "G4VCSGface.hh"
class G4IntersectingCone;
typedef struct {
G4double r, z; // start of vector
} G4PolyconeSideRZ;
class G4PolyconeSide : public G4VCSGface {
public:
G4PolyconeSide( const G4PolyconeSideRZ *prevRZ,
const G4PolyconeSideRZ *tail,
const G4PolyconeSideRZ *head,
const G4PolyconeSideRZ *nextRZ,
const G4double phiStart, const G4double deltaPhi,
const G4bool phiIsOpen, const G4bool isAllBehind=false );
virtual ~G4PolyconeSide();
G4PolyconeSide( const G4PolyconeSide &source );
G4PolyconeSide *operator=( const G4PolyconeSide &source );
G4bool Intersect( const G4ThreeVector &p, const G4ThreeVector &v,
const G4bool outgoing, const G4double surfTolerance,
G4double &distance, G4double &distFromSurface,
G4ThreeVector &normal, G4bool &isAllBehind );
G4double Distance( const G4ThreeVector &p, const G4bool outgoing );
EInside Inside( const G4ThreeVector &p, const G4double tolerance,
G4double *bestDistance );
G4ThreeVector Normal( const G4ThreeVector &p, G4double *bestDistance );
G4double Extent( const G4ThreeVector axis );
void CalculateExtent( const EAxis axis,
const G4VoxelLimits &voxelLimit,
const G4AffineTransform &tranform,
G4SolidExtentList &extentList );
G4VCSGface *Clone() { return new G4PolyconeSide( *this ); }
protected:
G4double r[2], z[2]; // r, z parameters, in specified order
G4double startPhi, // Start phi (0 to 2pi), if phiIsOpen
deltaPhi; // Delta phi (0 to 2pi), if phiIsOpen
G4bool phiIsOpen; // True if there is a phi slice
G4bool allBehind; // True if the entire solid is "behind" this face
G4IntersectingCone *cone; // Our intersecting utility class
G4double rNorm, zNorm; // Normal to surface in r,z space
G4double rS, zS; // Unit vector along surface in r,z space
G4double length; // Length of face in r,z space
G4double prevRS,
prevZS; // Unit vector along previous polyconeSide
G4double nextRS,
nextZS; // Unit vector along next polyconeSide
G4double rNormEdge[2],
zNormEdge[2]; // Normal to edges
G4ThreeVector *corners; // The coordinates of the corners (if phiIsOpen)
G4double DistanceAway( const G4ThreeVector &p, const G4bool opposite,
G4double &distOutside2, G4double *rzNorm=0 );
G4bool PointOnCone( const G4ThreeVector &hit, const G4double normSign,
const G4ThreeVector &p, const G4ThreeVector &v, G4ThreeVector &normal );
void CopyStuff( const G4PolyconeSide &source );
static void FindLineIntersect( const G4double x1, const G4double y1,
const G4double tx1, const G4double ty1,
const G4double x2, const G4double y2,
const G4double tx2, const G4double ty2,
G4double &x, G4double &y );
};
#endif