Gabriele Cosmo
63 lines
2.3 KiB
C++
63 lines
2.3 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: geomdefs.hh,v 1.2 1999/11/16 17:29:14 gcosmo Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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//
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// ----------------------------------------------------------------------
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// Constants, typedefs, enums for Geometry Section
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//
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// History:
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// 30.06.95 P.Kent
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#ifndef GeomDefs_hh
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#define GeomDefs_hh
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#include "globals.hh"
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// `Infinity' - Distance returned for no intersection etc.
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static const G4double kInfinity = 9.0E99;
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// Thickness of shapes for Inside function / tracking.
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// Should be greater than largest math error from the shape
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// distance calculation routines.
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// Tolerance is centred on surface: Inside routine uses a
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// tolerance dx +/- kTol/2
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// Note: values not `tuned', and because of approximations kRadtolerance and
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// kAngTolerance may not always be used as an exact radius
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static const G4double kCarTolerance = 1E-9*mm;
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static const G4double kRadTolerance = 1E-9*mm;
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static const G4double kAngTolerance = 1E-9*rad;
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// Minimum cosine of angle between surface normal & track direction
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// for exiting normal optimisation
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static const double kMinExitingNormalCosine = 1E-3;
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// Define axes for function params etc.
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// X/Y/ZAxis = Normal Catesian axes
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// Rho = Radial axis in cylindrical polar
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// Radial3D = Radial axis in spherical polar
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// Phi = Phi axis in cylindrical polar
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enum EAxis {kXAxis,kYAxis,kZAxis,kRho,kRadial3D,kPhi};
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// G4VSolid::Inside return codes
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// kSurface => within tolerance of exact surface
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enum EInside {kOutside,kSurface,kInside};
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// kNormal = (G4PVPlacement) Conventional positioning
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// kReplica = (G4PVReplica) Consumed parameterised case
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// => Distances & location computed with
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// simple formulae & MOTHER volume(s)
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// must also be checked
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// kParameterised = (G4PVParameterised) General parameterised volume
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// => Distance & location computed to volumes
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// after setup/modification via user object
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enum EVolume {kNormal,kReplica,kParameterised};
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#endif /* GeomDefs_hh */
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