Gabriele Cosmo
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4PolyconeSide.hh,v 1.1 2000/04/07 10:57:41 gcosmo Exp $
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// GEANT4 tag $Name: geant4-02-00 $
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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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// G4PolyconeSide
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//
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// Class description:
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//
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// Class implmenting a face that represents one conical side
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// of a polycone.
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// --------------------------------------------------------------------
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#ifndef G4PolyconeSide_hh
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#define G4PolyconeSide_hh
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#include "G4VCSGface.hh"
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class G4IntersectingCone;
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typedef struct {
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G4double r, z; // start of vector
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} G4PolyconeSideRZ;
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class G4PolyconeSide : public G4VCSGface {
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public:
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G4PolyconeSide( const G4PolyconeSideRZ *prevRZ,
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const G4PolyconeSideRZ *tail,
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const G4PolyconeSideRZ *head,
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const G4PolyconeSideRZ *nextRZ,
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const G4double phiStart, const G4double deltaPhi,
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const G4bool phiIsOpen, const G4bool isAllBehind=false );
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virtual ~G4PolyconeSide();
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G4PolyconeSide( const G4PolyconeSide &source );
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G4PolyconeSide *operator=( const G4PolyconeSide &source );
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G4bool Intersect( const G4ThreeVector &p, const G4ThreeVector &v,
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const G4bool outgoing, const G4double surfTolerance,
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G4double &distance, G4double &distFromSurface,
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G4ThreeVector &normal, G4bool &isAllBehind );
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G4double Distance( const G4ThreeVector &p, const G4bool outgoing );
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EInside Inside( const G4ThreeVector &p, const G4double tolerance,
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G4double *bestDistance );
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G4ThreeVector Normal( const G4ThreeVector &p, G4double *bestDistance );
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G4double Extent( const G4ThreeVector axis );
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void CalculateExtent( const EAxis axis,
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const G4VoxelLimits &voxelLimit,
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const G4AffineTransform &tranform,
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G4SolidExtentList &extentList );
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G4VCSGface *Clone() { return new G4PolyconeSide( *this ); }
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protected:
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G4double r[2], z[2]; // r, z parameters, in specified order
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G4double startPhi, // Start phi (0 to 2pi), if phiIsOpen
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deltaPhi; // Delta phi (0 to 2pi), if phiIsOpen
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G4bool phiIsOpen; // True if there is a phi slice
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G4bool allBehind; // True if the entire solid is "behind" this face
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G4IntersectingCone *cone; // Our intersecting utility class
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G4double rNorm, zNorm; // Normal to surface in r,z space
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G4double rS, zS; // Unit vector along surface in r,z space
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G4double length; // Length of face in r,z space
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G4double prevRS,
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prevZS; // Unit vector along previous polyconeSide
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G4double nextRS,
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nextZS; // Unit vector along next polyconeSide
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G4double rNormEdge[2],
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zNormEdge[2]; // Normal to edges
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G4ThreeVector *corners; // The coordinates of the corners (if phiIsOpen)
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G4double DistanceAway( const G4ThreeVector &p, const G4bool opposite,
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G4double &distOutside2, G4double *rzNorm=0 );
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G4bool PointOnCone( const G4ThreeVector &hit, const G4double normSign,
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const G4ThreeVector &p, const G4ThreeVector &v, G4ThreeVector &normal );
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void CopyStuff( const G4PolyconeSide &source );
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static void FindLineIntersect( const G4double x1, const G4double y1,
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const G4double tx1, const G4double ty1,
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const G4double x2, const G4double y2,
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const G4double tx2, const G4double ty2,
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G4double &x, G4double &y );
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};
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#endif
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