Gabriele Cosmo
242 lines
8.5 KiB
Plaintext
242 lines
8.5 KiB
Plaintext
$Id: History,v 1.15 1999/12/07 11:42:04 japost Exp $
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-------------------------------------------------------------------
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=========================================================
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Geant4 - an Object-Oriented Toolkit for Simulation in HEP
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=========================================================
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Category History file
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---------------------
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This file should be used by G4 developers and category coordinators
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to briefly summarize all major modifications introduced in the code
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and keep track of all category-tags.
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It DOES NOT substitute the CVS log-message one should put at every
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committal in the CVS repository !
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----------------------------------------------------------
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* Reverse chronological order (last date on top), please *
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----------------------------------------------------------
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December 7th, 1999 J. Apostolakis - field-V00-01-01a
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For negative or very small curve lengths (h) we suppress writing an error
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(about the distance of endpoints being further than the curve length),
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as it is meaningless.
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November 23rd, 1999 J. Apostolakis - field-V00-01-01
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Tagged this sub-category's state in geometry-V00-01-01
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July 6th, 1999 J. Apostolakis - field-01-00-07
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These fixes and those in field-01-00-06 and field-01-00-06a all come
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from the need to cope with the imprecision of the integration, and its
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interaction with paths that are rather straight.
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G4MagIntegrationDriver:
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i) AccurateAdvance now that the chord distance is smaller than the curve len-
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gth (times 1+epsilon).
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ii) OneGoodStep and QuickAdvance considers the error of the velocity as well as
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the error of the position - and ensure that both relative errors are within
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the "eps" maximum given.
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G4ChordFinder:
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Having found that the curve_length vs ABdist disrepancy has its basis in
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the imprecision of the integration:
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i) Modified the exception in this case to happen only for very large
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relative disrepancies ( 10 * eps ).
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ii) Undertaken a default corrective action in all other cases
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Note that this disrepancy only happens for very straight sections of track -
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ie step lengths much smaller than the curvature of the track.
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July 1st, 1999 J. Apostolakis - field-01-00-06a
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In order to cope with the anomalous condition created by candidate fix
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in G4PropagatorInField, we ensure that the fraction_AE is always between
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0 and 1.0. (giving it a default value of 0.5 whenever it is wrong).
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( in G4ChordFinder::ApproxCurvePointV )
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June 29th, 1999 J. Apostolakis - field-01-00-06
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I re-instated a check on whether the input distance along the curve between
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the two input curve points is truly greater than their linear distance.
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( in G4ChordFinder::ApproxCurvePointV )
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The condition that prints out a warning message has been altered to
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take into account the case of a very small final interval.
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( in G4MagInt_Driver::AccurateAdvance )
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June ??th, 1999 J. Apostolakis - field-01-00-05
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The condition that prints out a warning message was changed to delete
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an incorrect comparison.
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( in G4MagInt_Driver::AccurateAdvance )
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April 19th, 1999 J. Apostolakis - field-01-00-04
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G4MagErrorStepper: Cosmetic changes to name of data members
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March 4th, 1999 J. Apostolakis - field-01-00-03
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Corrected delete statement of arrays to use 'delete[]' instead of simple delete
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in destructors of 2 steppers (G4CashKarpRKF45, G4SimpleHeum)
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February 17th, 1999 J. Apostolakis - field-01-00-02
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Moved G4PropagatorInField files to geometry/volumes.
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Updated GNUmakefile not to depend on geometry/volumes anymore.
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-> the known circular dependency is removed
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February 12th, 1999 J. Apostolakis - field-spin1-works1 (act Feb17)
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A tag that contains the first version that worked with spin (in Peter G.'s
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directory). G4PropagateInSpin is still in this version. A small change
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in a branch of the header file was needed.
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February 10th, 1999 J. Apostolakis
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All the following changes are needed for energy integration also:
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G4ChordFinder now passes to the constructed driver the number of variables.
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Because of the need for the stepper to know about it in its Abstract interface
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-> Moved theNumberOfVariables from derived class G4MagErrorStepper
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to base class G4MagIntegratorStepper
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As a consequense the classes that derived from G4MagIntegratorStepper directly
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were changed: G4CashKarpRKF45, G4MagHelicalStepper,
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February 9th, 1999 J. Apostolakis
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Equation of Motion:
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G4MagEqRhs.hh Made SetChargeMomentumMass virtual, so that G4Mag_SpinEqRhs
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can initialise its constants too.
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February 9th, 1999 P. Gumplinger
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Added Equation of Motion for Spin in Magnetic Field.
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February 17th, 1999 J. Apostolakis - field-01-00-01
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---> date is correct, made sure that tag does not include above fixes!
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Moved G4PropagatorInField files to geometry/volumes.
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Updated GNUmakefile not to depend on geometry/volumes anymore.
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-> the known circular dependency is removed
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---------------------------------------------------------------------------
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------ Geant 4 Production Release ------------
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--------------------------------------------------------------------------
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Nov 19th, 1998 J. Apostolakis - field-00-04-01head ===> R+D version only
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G4PropagatorInField files modified:
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- to store the last safety computed and its origin.
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- to give them to a requester
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------------------------------------------------------------------
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Nov 19th, 1998 J. Apostolakis - field-00-03-03b
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Subtle fix to interface of G4UniformMagField::GetFieldValue
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( that tripped Visual C++ )
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G4PropagatorInField: added printing method for verboseness.
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Nov 19th, 1998 J. Apostolakis - field-00-03-03a
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Steppers: Fixed instance variables construction (SimpleRunge)
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and clash of names in CashKarp::StepWithEstimate
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Added post-const to all Field classes for
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void GetFieldValue(const G4double yTrack[] ,
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G4double B[] ) const ;
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Added SetFieldValue methods to UniformMagField
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Added GetConstantFieldValue() methods to Uniform Mag & Electric Fields
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Nov 19th, 1998 J. Apostolakis - field-00-03-03
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Fixes to Propagate and Steppers
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Nov 19th, 1998 J. Apostolakis - field-00-03-02
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Minor corrections (???)
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Nov 19th, 1998 J. Apostolakis - field-00-03-02
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Major development to allow Electric Field
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June 17th, 1998 J. Apostolakis - magfield-06-03
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Modified Files:
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include/G4PropagatorInField.hh
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src/G4PropagatorInField.cc
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test/testPropagateInField.cc
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----------------------------------------------------------------------
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1) Added an assertion after each call to LocateGlobalPointAndSetup.
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It checks that the located volume is equal to the current volume.
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If this check fails, the Propagator does not know how to continue.
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2) Added an argument to ComputeStep method of G4PropagatorInField.
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The new volume argument is used to check the current volume during the step.
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3) When G4Navigator's ComputeStep returned stepLength==stepRequested, this
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used to be treated as a failure to intersect. This is incorrect.
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stepLength==stepRequested is an intersection,
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so I am now treating it as such in each comparison (of 3).
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Ignoring it causes problems, including volume being skipped.
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--> but treating it as an intersection used to cause problems too ??
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May 7th, 1998 J. Apostolakis - magfield-06-02-helix01
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- Tag includes new version of G4ChordFinder (not used by W.Wander).
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May 7th, 1998 W. Wander (recorded/commited by J. Apostolakis)
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- New "helical" RK steppers that move in helical segments, not linear.
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* Several changes to add steppers
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Modified Files:
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G4MagErrorStepper.hh
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G4MagErrorStepper.cc
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added Helical stepping methods to this general ABC.
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G4MagIntegratorStepper.hh
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made RightHandSide virtual (this will be reversed very soon)
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testPropagateMagField.cc
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Test of Helical stepping functionality added.
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Added Files for new Helical RK steppers, deriving from G4MagErrorStepper:
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G4HelixExplicitEuler.cc ( and .hh )
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G4HelixHeum.cc
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G4HelixImplicitEuler.cc
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G4HelixSimpleRunge.cc
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Added File for implementation:
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G4MagErrorStepper.icc
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May 7th, 1998 J. Apostolakis - magfield-06-01
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- added small changes to
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* G4ChordFinder: methods to get/set IntegratorDriver
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* G4MagIntegratorDriver: made OneGoodStep method public
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- created the file.
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