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geant4/source/geometry/solids/BREPS/include/G4BREPSolidPolyhedra.hh
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//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
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// * regarding this software system or assume any liability for its *
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// * This code implementation is the intellectual property of the *
// * GEANT4 collaboration. *
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// * based on the Program) you indicate your acceptance of this *
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//
//
// $Id: G4BREPSolidPolyhedra.hh,v 1.11 2002/12/03 14:32:45 gcosmo Exp $
// GEANT4 tag $Name: geant4-05-00 $
//
// ----------------------------------------------------------------------
// Class G4BREPSolidPolyhedra
//
// Class description:
//
// The polygonal solid G4BREPSolidPolyhedra is a shape defined by an inner
// and outer polygonal surface and two planes perpendicular to the Z axis.
// Each polygonal surface is created by linking a series of polygons created
// at different planes perpendicular to the Z-axis. All these polygons all
// have the same number of sides (sides) and are defined at the same Z planes
// for both inner and outer polygonal surfaces.
//
// G4BREPSolidPolyhedra( const G4String& name,
// G4double phi1,
// G4double dphi,
// G4int sides,
// G4int num_z_planes,
// G4double z_start,
// G4double z_values[],
// G4double RMIN[],
// G4double RMAX[] )
// Authors: J.Sulkimo, P.Urban.
// Revisions by: L.Broglia, S.Giani, G.Cosmo.
// ----------------------------------------------------------------------
#ifndef __G4BREPPOLYHEDRA
#define __G4BREPPOLYHEDRA
#include "G4BREPSolid.hh"
class G4BREPSolidPolyhedra : public G4BREPSolid
{
public: // with description
G4BREPSolidPolyhedra( const G4String& name,
G4double phi1,
G4double dphi,
G4int sides,
G4int num_z_planes,
G4double z_start,
G4double z_values[],
G4double RMIN[],
G4double RMAX[] );
// Constructor defining the polyhedra through its
// polygonal surfaces and planes.
~G4BREPSolidPolyhedra();
// Destructor.
void Initialize();
// Calculates the bounding box.
EInside Inside(register const G4ThreeVector& Pt) const;
// Determines if the point Pt is inside, outside or on the surface
// of the solid.
G4ThreeVector SurfaceNormal(const G4ThreeVector&) const;
// Calculates the normal of the surface at a point on the surface
// The sense of the normal depends on the sense of the surface.
G4double DistanceToIn(const G4ThreeVector&) const;
// Calculates the shortest distance ("safety") from a point
// outside the solid to any boundary of this solid.
// Return 0 if the point is already inside.
G4double DistanceToIn(register const G4ThreeVector& Pt,
register const G4ThreeVector& V) const;
// Calculates the distance from a point Pt outside the solid
// to the solid's boundary along a specified direction vector V.
// Note: Intersections with boundaries less than the tolerance must
// be ignored if the direction is away from the boundary.
G4double DistanceToOut(register const G4ThreeVector& Pt,
register const G4ThreeVector& V,
const G4bool calcNorm=false,
G4bool *validNorm=0, G4ThreeVector *n=0) const;
// Calculates the distance from a point inside the solid to the solid`s
// boundary along a specified direction vector.
// Return 0 if the point is already outside.
// Note: If the shortest distance to a boundary is less than the
// tolerance, it is ignored. This allows for a point within a
// tolerant boundary to leave immediately.
G4double DistanceToOut(const G4ThreeVector&) const;
// Calculates the shortest distance ("safety") from a point inside the
// solid to any boundary of this solid.
// Return 0 if the point is already outside.
virtual G4std::ostream& StreamInfo(G4std::ostream& os) const;
// Streams solid contents to output stream.
public:
G4Polyhedron* CreatePolyhedron () const;
// Creates a G4Polyhedron
void Reset() const;
// Resets all distance attributes.
private:
G4BREPSolidPolyhedra(const G4BREPSolidPolyhedra&);
G4BREPSolidPolyhedra& operator=(const G4BREPSolidPolyhedra&);
// Private copy constructor and assignment operator.
typedef enum _SF {
EInverse = 0,
ENormal = 1
} ESurfaceSense;
G4Surface* CreateTrapezoidalSurface( G4double r1, G4double r2,
const G4Point3D& origin, G4double zDistance,
G4Vector3D& xAxis, G4double partAngle,
ESurfaceSense sense );
G4Surface* CreateTriangularSurface( G4double r1, G4double r2,
const G4Point3D& origin, G4double zDistance,
G4Vector3D& xAxis, G4double partAngle,
ESurfaceSense sense );
G4Surface* ComputePlanarSurface( G4double r1, G4double r2,
const G4Point3D& origin, G4Vector3D& xAxis,
G4int sides, G4double partAngle,
ESurfaceSense sense );
// The following is only utilised in storing the shape parameters for
// use in visualising this shape. J.A. Feb 24, 1997
//
// R. Chytracek, Nov 2002, Update to new IO dumping mechanism
struct G4BREPPolyhedraParams
{
G4double start_angle;
G4double opening_angle;
G4int sides;
G4int num_z_planes;
G4double z_start;
G4double* z_values;
G4double* RMIN;
G4double* RMAX;
} constructorParams;
};
#endif