| 1 |
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| 2 | Geant4 3.1 Release Notes
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| 3 | ------------------------
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| 4 |
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| 5 | 6th April 2001
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| 6 |
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| 7 | These are the main new features/fixes included in this release since
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| 8 | release 3.0 (for the detailed list of fixes/additions, please refer to the
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| 9 | related History files):
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| 10 |
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| 11 | o Configuration:
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| 12 | -------------
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| 13 | - Added/enabled code in configuration files to store path to dynamic
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| 14 | library from example/test directory in the executable.
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| 15 |
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| 16 | o Digits+Hits:
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| 17 | -----------
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| 18 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 19 |
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| 20 | o Event:
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| 21 | -----
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| 22 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 23 | - Added proper time to G4PrimaryParticle.
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| 24 | - Fixed bug in G4GeneralParticleSource.
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| 25 |
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| 26 | o Electromagnetic Processes (Low-energy):
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| 27 | --------------------------------------
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| 28 | - Changes for STL migration of G4OrderedTable and G4DataVector.
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| 29 | - Removed obsolete class G4Data.
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| 30 |
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| 31 | o Electromagnetic Processes (Standard):
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| 32 | ------------------------------------
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| 33 | - Small corrections in e/hEnergyLoss to ensure consistency between
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| 34 | cut in range and step limitation due to energy loss (finalRange
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| 35 | data member <-> cut in range)
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| 36 | - Change in energy loss computation in eBrems process.
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| 37 | Parametrisation of energy loss due to soft brems has been corrected
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| 38 | for big cut values.
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| 39 | - Bug-fix in e/hEnergyLoss processes for AlongStepDoIt().
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| 40 | Do not use PostStep information in AlongStepDoIt() when generating
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| 41 | sub-cutoff delta rays.
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| 42 | - Small corrections in MuEnergyLoss process.
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| 43 | - Bug fixed in MultipleScattering: there was an error in computation
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| 44 | of the transport cross section, the cross section was too small for
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| 45 | low energy (below few MeV for electrons).
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| 46 | - Bug fixed in G4MuBremstrahlung::PostStepDoIt() in sampling energy
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| 47 | of generated photons. Fixes the problem sometimes occuring of
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| 48 | negative interaction length detected.
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| 49 | - Fix at small cut value for error in loss fluctuations
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| 50 | (for example in Al 100 microns).
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| 51 | - Suppressed protection in PhotoElectric process.
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| 52 | - Adopt fStopButAlive in eplusAnnihilation process.
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| 53 | - Introduced new module 'integral' for integral processes: moved
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| 54 | existing integral processes (G4I*, G4VI*) therein.
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| 55 |
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| 56 | o General Processes, Parameterisation, Decay, Optical:
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| 57 | ---------------------------------------------------
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| 58 | - Modified G4OpRayleigh to allow for Rayleigh scattering length to
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| 59 | be defined for arbitrary material through the use of
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| 60 | G4MaterialPropertyTable. This deals with bug report #199.
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| 61 | - Fixes in the DoIt of G4OpRayleigh: to allow for positive and negative
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| 62 | CosTheta and to force the new momentum direction of the photon after
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| 63 | scattering to be in the same plane as the new and old polarization
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| 64 | vectors. Deals with bug report #207.
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| 65 | - Added abstract class G4VExtDecayer for external decayer and modified
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| 66 | G4Decay accordingly.
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| 67 | - Modified Store/RetrievePhysicsTable() methods: added a bool argument
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| 68 | to specify ascii/binary mode.
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| 69 |
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| 70 | o Geometry:
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| 71 | --------
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| 72 | - Boolean solids:
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| 73 | o Minor fix to labels in G4Exception calls.
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| 74 | Fixes problem report #200.
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| 75 | o G4IntersectionSolid:
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| 76 | - Fix in CalculateExtent() for computation of 'pMin'
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| 77 | and 'pMax', to avoid assignment in case CalculateExtent() of
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| 78 | one component solid fails.
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| 79 | - Fix in Inside() to return 'kOutside' in case first component
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| 80 | solid's Inside() returns 'kOutside'.
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| 81 | o G4UnionSolid:
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| 82 | - Fix in DistanceToOut(p,v,...) for assignment of argument *n to
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| 83 | happen only if calcNorm is false.
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| 84 | - Fix in CalculateExtent() for computation of 'pMin' and 'pMax'.
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| 85 |
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| 86 | - CSG solids
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| 87 | o G4Tubs:
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| 88 | - Corrections in phi-section algorithm of Inside(p).
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| 89 | - Fixed condition from (pPhi<0) to (pPhi<-0.5*kAngleTolerance)
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| 90 | in Inside(p). Fixes problem report #198.
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| 91 | - Fixed bug in function Inside(p) in computation of pPhi
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| 92 | for points at phi = 0 if the (start phi)+(delta phi) is
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| 93 | at phi = 0.
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| 94 | - Temporarly modified CalculateExtent(...), now simply based
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| 95 | on G4Box::CalculateExtent(...).
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| 96 | o G4Box:
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| 97 | - Introduced checks against negative (or <2*kCarTolerance)
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| 98 | dimensions in methods SetXHalfLength(), SetYHalfLength() and
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| 99 | SetZHalfLength().
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| 100 | - Fixes to algorithm for computation of rotated vertices in
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| 101 | CalculateExtent().
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| 102 | o G4Torus:
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| 103 | - Extracted logic for G4PolynomialSolver now included
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| 104 | in global/HEPNumerics.
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| 105 |
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| 106 | - Specific solids:
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| 107 | o Fix in G4Hype::DistanceToOut(p,v,...): added protection against
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| 108 | zero v.z.
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| 109 | o G4IntersectingCone: make small adjustment to help with roundoff
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| 110 | error in LineHitsCone1() and LineHitsCone2().
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| 111 |
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| 112 | - Magnetic Field
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| 113 | o Minor fix to G4MagneticField.hh: added explicit call to G4Field()
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| 114 | in copy constructor. Fixes problem report #205.
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| 115 | o Fixed G4MagHelicalStepper::AdvanceHelix for momentum, allowing
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| 116 | the possibility of (correct) use of all Helical Steppers.
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| 117 | o Corrected field components in G4UniformElectricField.
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| 118 |
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| 119 | - Management
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| 120 | o Introduced G4AssemblyVolume: helper class to combine
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| 121 | volumes together in an arbitrary way in the 3D space.
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| 122 |
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| 123 | - Volumes
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| 124 | o Fix in G4ReplicaNavigation::ComputeTransformation() to consider
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| 125 | 'pVol' for SetPhiTransformation() in the kPhi case.
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| 126 | o Fix in G4ReplicaNavigation::ComputeStep() to initialise 'ourStep'
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| 127 | to kCarTolerance.
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| 128 |
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| 129 | o Global:
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| 130 | ------
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| 131 | - Migrated G4PhysicsTable, G4PhysicsVector and all related classes
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| 132 | to use STL <vector> instead of RW wrappers.
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| 133 | - Fix to G4Allocator destructor: bug report #181.
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| 134 | - Added generic class G4PolynomialSolver in HEPNumerics module.
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| 135 | - Removed from G4PhysicsVector dependency over G4PhysicsTable.
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| 136 | Removed methods: LinkPhysicsTable(), IsLinkedTableExist() and
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| 137 | GetNextTable(). Removed data-member ptrNextTable.
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| 138 | - Added new unit 'parsec' to SystemOfUnits.h
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| 139 | - Fixed bug in constructor of G4PhysicsLnVector: initialised
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| 140 | 'dataVector' to zero.
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| 141 | - Added Store/RetrievePhysicsTable methods in G4PhysicsTable.
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| 142 | - Added Store/Retrieve and GetType methods in G4PhysicsVector and
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| 143 | related.
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| 144 | - Introduced G4PhysicsVectorType class (enumeration).
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| 145 | - G4UnitsTable: resolved ambiguity of old/new style iostream for
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| 146 | formatting in operator<<.
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| 147 |
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| 148 | o Graphics Representations:
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| 149 | ------------------------
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| 150 | - Tidying for CodeWizard. Added virtual destructors to
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| 151 | HepPolyhedronBox, etc. Also made all constructors non-inline.
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| 152 | - Removed G4Circle.icc and G4VVisPrim.icc.
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| 153 |
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| 154 | o Hadronic Processes:
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| 155 | ------------------
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| 156 | - Bug fix for very low energy ion cross-sections; should have no
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| 157 | visible effect.
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| 158 | - Moved inline implementation of G4Solver to G4Solver.icc.
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| 159 |
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| 160 | o Materials:
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| 161 | ---------
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| 162 | - Bug fixed in G4IonisParamMat.cc : E100eV instead of E100keV
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| 163 | This bug affected the values of the density correction parameters
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| 164 | in the energy loss (dE/dx) computation: ~3-5 % error in dE/dx in
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| 165 | the energy range 1 MeV - 50 MeV !
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| 166 | - Added new method G4Material::GetNuclearInterLength().
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| 167 | - Bug fix concerning units in G4SandiaTable::GetSandiaCofPerAtom().
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| 168 | Reimplemented G4SandiaTable::ComputeMatSandiaMatrix().
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| 169 | - Added protection in GetSandiaCofForMaterial().
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| 170 | - fnulcof added as data member in G4SandiaTable.
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| 171 | - Revision of destructor, copy constructor, assignement operator in
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| 172 | G4IonisParam, G4Isotope, G4Element and G4Material, according to
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| 173 | problem report #106.
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| 174 | - Removed warning to cerr in GetIsotope(name), GetElement(name),
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| 175 | and GetMaterial(name).
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| 176 |
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| 177 | o Particles:
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| 178 | ---------
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| 179 | - Added pre-assignedDecayTime to G4DynamicParticle.
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| 180 | - Bug fix in calculation of electron energy in G4MuDecayChannel.
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| 181 | Fixes problem report #224.
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| 182 | - Fixed a bug in G4DynamicParticle::SetDefinition() for problem
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| 183 | report #228.
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| 184 | - Added RestoreCuts() methods to G4ParticleWithCuts class.
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| 185 |
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| 186 | o Persistency:
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| 187 | -----------
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| 188 | - G4PDCofThisEvent.ddl: fixed a bug in GetNumberOfCollections().
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| 189 |
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| 190 | o Readout:
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| 191 | -------
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| 192 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 193 |
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| 194 | o Run and Intercoms:
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| 195 | -----------------
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| 196 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 197 |
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| 198 | o Tracking & Track:
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| 199 | ----------------
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| 200 | - Changes for STL migration of G4OrderedTable and G4DataVector.
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| 201 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 202 | - Added comments to headers for the Software Reference Manual.
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| 203 | - Added copy constructor for G4Track.
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| 204 | - Fix in G4Track::GetVelocity() for Gamma
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| 205 | - Fixes to G4StepPoint::GetVelocity() for problem report #208
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| 206 | and to return correct value in case of optical-photon.
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| 207 | - Added call to SetVelocity() in G4Step::InitializeStep().
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| 208 | - G4PArticleChange: fix in case momentum is zero, (even if
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| 209 | energy>0.0 and very small) to overcome problems due to
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| 210 | precision issues.
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| 211 |
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| 212 | o Transportation:
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| 213 | --------------
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| 214 | - Improved calculation of energy at the end of the field.
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| 215 | - G4Transportation modified to use new FieldTrack, and get Kinetic
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| 216 | Energy from it. This implements integration in Momentum (*c-light)
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| 217 | instead of velocity.
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| 218 |
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| 219 | o Visualization:
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| 220 | -------------
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| 221 | - Changed rotation of phi-replicas in G4PhysicalVolumeModel.cc to
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| 222 | ensure correspondence with rule that phi=0 bisects the replica.
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| 223 |
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| 224 | WARNING: Prior to this fix the graphics did NOT correspond to the
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| 225 | replica navigation. If you have been relying on the graphics to
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| 226 | position daughter volumes in a phi-replica, navigation will have
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| 227 | been incorrect, possibly without causing a crash. The above fix
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| 228 | will change the apparent position as shown by the graphics and you
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| 229 | will have to correct the positioning of daughters. Make sure the
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| 230 | daughters are all properly enclosed within the replica. Graphics
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| 231 | and navigation now correspond.
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| 232 | - Added auto-refresh facility for OpenGL.
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| 233 | - Bug fixes for problems:
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| 234 | #120: improved up vector calculation to avoid view "flipping"
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| 235 | at (90, 90).
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| 236 | #157: fixed crash when viewer was defined before scene.
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| 237 | #204: fixed failure to change number of sides per circle.
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| 238 | - Fixed problem when requested physical volume was at depth 2 or more.
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| 239 | - Migrated classes to use STL <vector> instead of RW wrappers.
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| 240 | - Introduced many new commands (listed below). Old commands print a
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| 241 | DEPRECATED warning.
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| 242 | o New compound command:
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| 243 | /vis/drawView [<theta-deg>] [<phi-deg>]
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| 244 | [<pan-right>] [<pan-up>] [<pan-unit>]
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| 245 | [<zoom-factor>] [<dolly>] [<dolly-unit>]
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| 246 | o New primitive commands:
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| 247 | /vis/enable [true|false]
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| 248 | /vis/disable
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| 249 | /vis/verbose []
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| 250 | /vis/viewer/set/lineSegmentsPerCircle []
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| 251 | /vis/viewer/set/sectionPlane ...
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| 252 | /vis/viewer/set/autoRefresh
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| 253 | /vis/viewer/set/projection
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| 254 | /vis/viewer/dolly
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| 255 | /vis/viewer/dollyTo
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| 256 | /vis/viewer/lightsThetaPhi
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| 257 | /vis/viewer/lightsVector
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| 258 | /vis/viewer/pan
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| 259 | /vis/viewer/panTo
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| 260 | /vis/viewer/viewpointThetaPhi
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| 261 | /vis/viewer/viewpointVector
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| 262 | /vis/viewer/zoom
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| 263 | /vis/viewer/zoomTo
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| 264 | /vis/viewer/set/hiddenMarker
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| 265 | /vis/viewer/set/lightsMove
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| 266 |
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| 267 | o G4toG4 Tool:
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| 268 | -----------
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| 269 | - Fixed bug in G3toG4BuildTree(G3VolTableEntry*, G3VolTableEntry*)
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| 270 | when positioning volume copies. Index is now decremented.
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| 271 | Added -DG3G4DEBUG to CPPFLAGS in GNUmakefile.
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| 272 | Fixes bug report #188.
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| 273 | - Added support for replicated "PARA" shapes in
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| 274 | G3Division::CreateSolid(...). Slices are placed with
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| 275 | G4PVPlacement instead of G4PVReplica for this particular case.
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| 276 | - G3toG4MakeSolid.cc: fixed bug in construction of G4Sphere where
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| 277 | 'theta' and 'phi' parameters were reversed according to G4Sphere
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| 278 | constructor. Fixes problem report #230.
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| 279 |
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| 280 | o Examples:
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| 281 | --------
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| 282 | - Introduced modular Physics List in exampleN04.
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| 283 | - ExampleN02: fix to ExN02ChamberParameterisation and
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| 284 | ExN02DetectorConstruction to cope with bug report #186.
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| 285 | - Added G4MuonMinusCaptureAtRest in physics list of ExampleN04.
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| 286 |
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| 287 |
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| 288 | Notes:
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| 289 |
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| 290 | o Geant4 3.1 is based on STL and can be installed with strict
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| 291 | ISO/ANSI C++ compliant setup or not. See notes below.
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| 292 |
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| 293 | The code and some binary libraries are available through our "Source Code"
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| 294 | Web page:
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| 295 | - see our Geant4 Home Page (http://cern.ch/geant4).
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| 296 |
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| 297 | Please refer to the Geant4 User Documentation
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| 298 | (http://cern.ch/geant4/G4UsersDocuments/Overview/html)
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| 299 | for further information about using Geant4.
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| 300 | Updates to the documentation for Geant4 3.1 are expected to be published as
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| 301 | usual within three weeks from the release date.
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| 302 |
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| 303 |
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| 304 | Contents
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| 305 | --------
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| 306 |
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| 307 | 1. Supported and Tested Platforms
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| 308 | 2. ANAPHE and CLHEP
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| 309 | 3. The Standard Template Library (STL)
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| 310 | 4. Persistency
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| 311 | 5. Compiler Specific Problems
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| 312 | 6. Known Run-Time Problems
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| 313 | 7. Compilation Warnings
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| 314 | 8. Known Run-Time Warnings
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| 315 |
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| 316 |
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| 317 | 1. Supported and Tested Platforms
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| 318 | ---------------------------------
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| 319 |
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| 320 | o SUN Solaris 5.6/5.7, C++ 4.2 Patch 104631-04, C++ 5.2 Patch 109508-02.
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| 321 | o HP 10.20, aCC C++ B3910B A.01.23
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| 322 | o Linux 2.2.17-7, gcc C++ egcs-2.91.66 (egcs 1.1.2), gcc 2.95.2.
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| 323 | This configuration was tested with the RedHat 6.1 distribution, but
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| 324 | versions of Geant4 have also been compiled successfully on Debian
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| 325 | and Suse distributions.
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| 326 | o NT 4.0 with Service Pack 4 and Cygnus Tools b20 with:
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| 327 | Visual C++ 6.0 Service Pack 2
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| 328 |
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| 329 | Platforms also tested but giving rise to some problems - see below:
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| 330 |
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| 331 | o DEC V4.0, cxx C++ V6.1-027.
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| 332 |
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| 333 | Platforms configured but not tested and not supported:
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| 334 | o SGI V6.5.5, CC 7.2.1 with ObjectSpace
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| 335 | o AIX 4.3.2, xlC compiler with ObjectSpace
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| 336 |
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| 337 |
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| 338 | 2. ANAPHE and CLHEP
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| 339 | -------------------
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| 340 |
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| 341 | Geant4 3.1 requires the installation of CLHEP.
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| 342 |
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| 343 | See CLHEP (http://cern.ch/clhep/INSTALLATION/clhep.html).
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| 344 | Tests have been performed with CLHEP 1.6.0.0.
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| 345 |
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| 346 | By default, the CLHEP installation scripts will activate ISO/ANSI C++ features
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| 347 | if the compiler is capable. You need to explicitly disable CLHEP settings in
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| 348 | case you wish non-ISO/ANSI setup on specific compilers.
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| 349 |
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| 350 | Geant4 3.1 coworks with ANAPHE 3.2.0 and components included therein:
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| 351 | Objectivity 5.2.1
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| 352 | ObjectSpace 2.1
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| 353 | HepODBMS 0.3.1.4
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| 354 | CLHEP 1.6.0.0
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| 355 |
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| 356 | For more information about ANAPHE, see: http://cern.ch/anaphe
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| 357 |
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| 358 |
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| 359 | 3. The Standard Template Library
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| 360 | --------------------------------
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| 361 |
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| 362 | The following versions of STL have been tested:
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| 363 |
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| 364 | ObjectSpace STL on SUN (CC 4.2).
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| 365 |
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| 366 | See ObjectSpace (http://www.objectspace.com).
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| 367 |
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| 368 | "Native" STL on: Windows/NT, Linux, HP, DEC and SUN (CC 5.2).
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| 369 |
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| 370 | This is selected at installation/compile time by the environment variable
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| 371 | G4USE_OSPACE in the case of the former - see documentation.
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| 372 |
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| 373 | NOTES:
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| 374 | - Be aware that by default, the installation scripts will expect to use
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| 375 | the native STL implementation. You must set the G4USE_OSPACE variable
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| 376 | in the environment in order to select the ObjectSpace implementation.
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| 377 |
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| 378 | - Platform specific setup:
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| 379 | o DEC: ObjectSpace is required in non ISO/ANSI setup.
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| 380 | Native STL is required for ISO/ANSI setup.
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| 381 | o HP: either ObjectSpace or native STL can be used (non ISO/ANSI setup).
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| 382 | o SUN: ObjectSpace is required in non ISO/ANSI setup (CC 4.2).
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| 383 | Native STL is required for ISO/ANSI setup (CC 5.2 only).
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| 384 | o Linux: Native STL is required (non ISO/ANSI setup).
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| 385 | o NT: Native STL and ISO/ANSI setup required.
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| 386 |
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| 387 | In the interest of stability, part of the code in Geant4 3.1 still makes use
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| 388 | of the "STL Interface" wrapper classes, used for allowing the migration from
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| 389 | Rogue Wave Tools.h++ container library. For these the emphasis has remained
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| 390 | on correct behaviour, rather than performance.
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| 391 |
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| 392 |
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| 393 | 4. Persistency
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| 394 | --------------
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| 395 |
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| 396 | See release notes for Geant4 3.0.
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| 397 |
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| 398 | 5. Compiler Specific Problems
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| 399 | -----------------------------
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| 400 |
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| 401 | o DEC V4.0, cxx C++ V6.1-027.
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| 402 |
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| 403 | - We have found cases of mis-compilation of min and max templates
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| 404 | on DEC. We have traced those which cause serious malfunction
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| 405 | but there is no guarantee that there are no other cases.
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| 406 | Detailed inspection of assembler output suggests that this
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| 407 | problem might not be confined to min and max. This has been
|
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| 408 | reported to DEC/Compaq. We understand a new version 6.2 of the
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| 409 | compiler is now available. However we cannot guarantee correct
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| 410 | execution of Geant4 on DEC with the current version of the
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| 411 | compiler.
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| 412 | - A bug in cin.getline() system function causes an anomalous
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|---|
| 413 | behavior when running in interactive-mode on DEC-cxx 6.1 in
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| 414 | ISO/ANSI mode. We tested the bug has been fixed in more recent
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| 415 | versions of the compiler.
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| 416 |
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| 417 |
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| 418 | 6. Known Run-Time Problems and Limitations
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|---|
| 419 | ------------------------------------------
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|---|
| 420 |
|
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| 421 | For a complete list of outstanding run-time problems and to submit any
|
|---|
| 422 | problem you may find running this version of Geant4, please refer to the
|
|---|
| 423 | Geant4 Problem Reporting System, available on the Web at this address:
|
|---|
| 424 |
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|---|
| 425 | http://cern.ch/geant4/problemreport
|
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| 426 |
|
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| 427 |
|
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| 428 | 7. Compilation Warnings
|
|---|
| 429 | -----------------------
|
|---|
| 430 |
|
|---|
| 431 | There are compilation warnings on some platforms. We do not believe
|
|---|
| 432 | that any will lead to incorrect run-time behaviour, but we are working
|
|---|
| 433 | on reducing them.
|
|---|
| 434 |
|
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| 435 |
|
|---|
| 436 | 8. Known Run-Time Warnings
|
|---|
| 437 | --------------------------
|
|---|
| 438 |
|
|---|
| 439 | The following messages can be written to error output while tracking. We
|
|---|
| 440 | believe none give rise to incorrect behaviour.
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|---|
| 441 |
|
|---|
| 442 | o G4PropagateInField: Warning: Particle is looping
|
|---|
| 443 | - tracking in field will be stopped.
|
|---|
| 444 | It has performed 10000 steps in Field while a maximum of 10000
|
|---|
| 445 | are allowed.
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