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// $Id: geomdefs.hh,v 1.8 2007/05/18 07:21:39 gcosmo Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// 
// ----------------------------------------------------------------------
// Constants, typedefs, enums for Geometry Section
//
// History:
// 30.06.95 P.Kent

#ifndef GeomDefs_hh
#define GeomDefs_hh

#include "globals.hh"

// `Infinity' - Distance returned for no intersection etc.
static const G4double kInfinity = 9.0E99;

// Minimum cosine of angle between surface normal & track direction
// for exiting normal optimisation
static const double kMinExitingNormalCosine = 1E-3;

// Define axes for function params etc.
// X/Y/ZAxis = Normal Catesian axes
// Rho = Radial axis in cylindrical polar
// Radial3D = Radial axis in spherical polar
// Phi = Phi axis in cylindrical polar
// kUndefined = Not defined axis
enum EAxis {kXAxis,kYAxis,kZAxis,kRho,kRadial3D,kPhi,kUndefined};

// G4VSolid::Inside return codes
// kSurface => within tolerance of exact surface
enum EInside {kOutside,kSurface,kInside};

// kNormal = (G4PVPlacement) Conventional positioning
// kReplica = (G4PVReplica)  Consumed parameterised case
//                           => Distances & location computed with
//                              simple formulae & MOTHER volume(s)
//                              must also be checked
// kParameterised = (G4PVParameterised) General parameterised volume
//                           => Distance & location computed to volumes
//                              after setup/modification via user object
enum EVolume {kNormal,kReplica,kParameterised};

// Default max size of Navigation history
//
static const G4int kHistoryMax    = 15;

// History increase stride of Navigation history
//
static const G4int kHistoryStride = 16;

// Voxel stack depth maximum [no resizing]
//
static const G4int kNavigatorVoxelStackMax = 3;

#endif /* GeomDefs_hh */
