Gabriele Cosmo
92 lines
3.8 KiB
C++
92 lines
3.8 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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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 *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: geomdefs.hh,v 1.5 2002/05/15 09:32:10 gcosmo Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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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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// kUndefined = Not defined axis
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enum EAxis {kXAxis,kYAxis,kZAxis,kRho,kRadial3D,kPhi,kUndefined};
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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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// Default max size of Navigation history
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//
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static const G4int kHistoryMax = 15;
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// History increase stride of Navigation history
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//
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static const G4int kHistoryStride = 16;
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// Voxel stack depth maximum [no resizing]
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//
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static const G4int kNavigatorVoxelStackMax = 3;
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#endif /* GeomDefs_hh */
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