Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/History

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Diff markup

Differences between /geometry/magneticfield/History (Version 11.3.0) and /geometry/magneticfield/History (Version 11.2)


  1 # Category field History                            1 # Category field History
  2                                                     2 
  3 See `CONTRIBUTING.rst` for details of **requir      3 See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
  4 which **must** added in reverse chronological       4 which **must** added in reverse chronological order (newest at the top).
  5 It must **not** be used as a substitute for wr      5 It must **not** be used as a substitute for writing good git commit messages!
  6                                                     6 
  7 ----------------------------------------------      7 -------------------------------------------------------------------------------
  8                                                     8 
  9 ## 2024-11-26 Ivana Hrivnacova (field-V11-02-0 << 
 10 - Better names for the G4EquationType enum con << 
 11                                                << 
 12 ## 2024-11-04 Philippe Canal (field-V11-02-05) << 
 13 - Improve stability of static initialization f << 
 14   StepperDescription() in G4DormandPrince745.  << 
 15                                                << 
 16 ## 2024-09-10 Ivana Hrivnacova (field-V11-02-0 << 
 17 - Coverity fixes:                              << 
 18   - Use std::move, const auto& instead of auto << 
 19                                                << 
 20 ## 2024-06-20 Ivana Hrivnacova (field-V11-02-0 << 
 21 - Fix in G4FieldBuilder for local fields:      << 
 22   apply the local fields in the order of user  << 
 23                                                << 
 24 ## 2024-04-29 Ivana Hrivnacova (field-V11-02-0 << 
 25 - Added classes for automatic field constructi << 
 26   - G4FieldBuilder[Messenger], G4FieldParamete << 
 27   - No changes in other Geant4 classes         << 
 28                                                << 
 29 ## 2024-04-17 Ben Morgan (field-V11-02-01)     << 
 30 - Fix maybe-uninitialized warnings found in AT << 
 31   - Reported in internal ATLASSIM-6058 ticket. << 
 32                                                << 
 33 ## 2024-04-02 Gabriele Cosmo (field-V11-02-00) << 
 34 - Applied trivial clang-tidy fixes to classes, << 
 35   constructor/destructor, auto and using state << 
 36 - Minor cleanup in QSS classes.                << 
 37                                                << 
 38 ## 2023-11-03 Gabriele Cosmo (field-V11-01-06)      9 ## 2023-11-03 Gabriele Cosmo (field-V11-01-06)
 39 - Reinstated default DormandPrince745 stepper.     10 - Reinstated default DormandPrince745 stepper.
 40                                                    11 
 41 ## 2023-10-27 Lucio Santi (field-V11-01-05)        12 ## 2023-10-27 Lucio Santi (field-V11-01-05)
 42 - Improvements on the QSS Stepper                  13 - Improvements on the QSS Stepper
 43   The main QSS integration loop is interrupted     14   The main QSS integration loop is interrupted when the number of substeps
 44   exceeds a predefined threshold (set to 1000      15   exceeds a predefined threshold (set to 1000 by default).
 45                                                    16 
 46 ## 2023-06-14 Gabriele Cosmo (field-V11-01-04)     17 ## 2023-06-14 Gabriele Cosmo (field-V11-01-04)
 47 - Applied clang-tidy fixes (readability, moder     18 - Applied clang-tidy fixes (readability, modernization, performance, ...).
 48                                                    19 
 49 ## 2023-06-12 John Apostolakis (field-V11-01-0     20 ## 2023-06-12 John Apostolakis (field-V11-01-03)
 50 - Inclusion of QSS integration method.             21 - Inclusion of QSS integration method.
 51   Most recent changes:                             22   Most recent changes:
 52   * Fixes for issue with SetPrecision (used un     23   * Fixes for issue with SetPrecision (used unitialised values of simulator->x)
 53   * Updated values of parameters in G4Propagat     24   * Updated values of parameters in G4PropagatorInField to conservative values.
 54   * Withdrew interim changes that made QSS the     25   * Withdrew interim changes that made QSS the default method for full testing.
 55                                                    26 
 56 ## 2023-05-26 Lucio Santi                          27 ## 2023-05-26 Lucio Santi
 57 - Fixes for open issues:                           28 - Fixes for open issues: 
 58   * default values for QSS made stricter dQRel     29   * default values for QSS made stricter dQRel=0.001, dQMin=0.0001 (QSSDriver.icc)
 59     to improve behaviour in full experiment te     30     to improve behaviour in full experiment test
 60   * implemented missing DistChord method -- ne     31   * implemented missing DistChord method -- needed to enable stepping with Chord limit
 61                                                    32 
 62 ## 2023-01-31 John Apostolakis                     33 ## 2023-01-31 John Apostolakis
 63 - Initial inclusion of QSS integration method.     34 - Initial inclusion of QSS integration method.
 64   Renamed classes to include 'G4' prefix, and      35   Renamed classes to include 'G4' prefix, and moved them from qss/ subdirectory.
 65   Added Geant4 disclaimer / license to files.      36   Added Geant4 disclaimer / license to files.
 66   Removed QSSmessenger from RunManager and G4P     37   Removed QSSmessenger from RunManager and G4PropagatorInField
 67 - Temporarily made QSS the default method for      38 - Temporarily made QSS the default method for full testing.
 68                                                    39 
 69 ## 2023-01-30 Rodrigo Castro, Lucio Santi & Le     40 ## 2023-01-30 Rodrigo Castro, Lucio Santi & Leandro Gomez Vidal
 70 - Included Quantum State Simulation (QSS) inte     41 - Included Quantum State Simulation (QSS) integration method
 71   Alternative method of integration which crea     42   Alternative method of integration which creates approximation
 72   functions for each coordinate (x,p) - changi     43   functions for each coordinate (x,p) - changing the interpolation
 73   polynomials when the deviation from exact so     44   polynomials when the deviation from exact solution is larger than
 74   a threshold value.                               45   a threshold value.
 75   Offers built-in interpolation capability - e     46   Offers built-in interpolation capability - enabling faster finding
 76   of the intersection of the trajectory with s     47   of the intersection of the trajectory with surfaces.
 77   Currently restricted to using only with a pu     48   Currently restricted to using only with a pure magnetic field.
 78   Created by Rodrigo Castro and Lucio Santi, w     49   Created by Rodrigo Castro and Lucio Santi, with contributions
 79   by Leandro A. Gómez Vidal (and others?)         50   by Leandro A. Gómez Vidal (and others?)
 80                                                    51 
 81 ## 2023-03-16 Ben Morgan (field-V11-01-02)         52 ## 2023-03-16 Ben Morgan (field-V11-01-02)
 82 - Fixed compilation warnings on clang-15 for m     53 - Fixed compilation warnings on clang-15 for mismatched bounds declarations
 83   in input parameters for steppers.                54   in input parameters for steppers.
 84                                                    55 
 85 ## 2023-01-09 Ben Morgan (field-V11-01-01)         56 ## 2023-01-09 Ben Morgan (field-V11-01-01)
 86 - Use PROJECT_ scoped _SOURCE/BINARY_DIR varia     57 - Use PROJECT_ scoped _SOURCE/BINARY_DIR variables in place of CMAKE_ 
 87   scope version to ease use of Geant4 as a CMa     58   scope version to ease use of Geant4 as a CMake subproject. 
 88   - Fixes [GitHub PR #52](https://github.com/G     59   - Fixes [GitHub PR #52](https://github.com/Geant4/geant4/pull/52)
 89                                                    60 
 90 ## 2022-12-09 Laurie Nevay             (field-     61 ## 2022-12-09 Laurie Nevay             (field-V11-01-00)
 91 - Reduced printout for setting any valid value     62 - Reduced printout for setting any valid value for epsilon_min / _max in
 92   G4FieldManager.                                  63   G4FieldManager.
 93                                                    64 
 94 ## 2022-11-28 Gabriele Cosmo           (field-     65 ## 2022-11-28 Gabriele Cosmo           (field-V11-00-05)
 95 - Fixed restore of stream precision in G4Field     66 - Fixed restore of stream precision in G4FieldManager::ReportBadEpsilonValue().
 96                                                    67 
 97 ## 2022-11-14 John Apostolakis         (field-     68 ## 2022-11-14 John Apostolakis         (field-V11-00-04)
 98 - Revised G4FieldManager to ensure that epsilo     69 - Revised G4FieldManager to ensure that epsilon_min / _max parameters
 99   are less than a 'maximum accepted' accuracy      70   are less than a 'maximum accepted' accuracy (now=0.02) to ensure robust
100   behaviour of the integration. Improved their     71   behaviour of the integration. Improved their Set methods, adding 
101    - warnings if min > max, with corrective be     72    - warnings if min > max, with corrective behaviour,  and
102    - a fatal exception in case of values outsi     73    - a fatal exception in case of values outside the accepted range.
103                                                    74    
104   To cope with needs of legacy applications or     75   To cope with needs of legacy applications or existing needs for performance,
105   the value of the 'ceiling' maximum accepted      76   the value of the 'ceiling' maximum accepted accuracy can be modified using
106   the new static method                            77   the new static method 
107        G4FieldManager::SetMaxAcceptedEpsilon(      78        G4FieldManager::SetMaxAcceptedEpsilon( maxAccept, softFail);
108   but must remain under or equal to a final ce     79   but must remain under or equal to a final ceiling currently of
109        fMaxFinalEpsilon=0.03                       80        fMaxFinalEpsilon=0.03
110                                                    81   
111 ## 2022-11-10 Gabriele Cosmo (field-V11-00-03)     82 ## 2022-11-10 Gabriele Cosmo (field-V11-00-03)
112 - Fixed compilation warnings for implicit type     83 - Fixed compilation warnings for implicit type conversions on macOS/XCode 14.1.
113                                                    84 
114 ## 2022-11-05 Divyansh Tiwari, John Apostolaki     85 ## 2022-11-05 Divyansh Tiwari, John Apostolakis (field-V11-00-02)
115                                                    86 
116 - Introduced G4BorisScheme and G4BorisDriver,      87 - Introduced G4BorisScheme and G4BorisDriver, a 2nd order symplectic
117   integration method, created as part of GSoC      88   integration method, created as part of GSoC 2022.
118                                                    89 
119 ## 2022-10-05 Gabriele Cosmo (field-V11-00-01)     90 ## 2022-10-05 Gabriele Cosmo (field-V11-00-01)
120 - Fixed compilation warnings on Intel/icx comp     91 - Fixed compilation warnings on Intel/icx compiler for variables set
121   but not used.                                    92   but not used.
122                                                    93 
123 ## 2021-12-10 Ben Morgan (field-V11-00-00)         94 ## 2021-12-10 Ben Morgan (field-V11-00-00)
124 - Change to new Markdown History format            95 - Change to new Markdown History format
125                                                    96 
126 ---                                                97 ---
127                                                    98 
128 # History entries prior to 11.0                    99 # History entries prior to 11.0
129                                                   100 
130 March 30, 2021 B.Morgan                           101 March 30, 2021 B.Morgan                           - field-V10-07-00
131 -----------------------                           102 -----------------------
132 - Migrate sources.cmake to modular build API      103 - Migrate sources.cmake to modular build API
133                                                   104 
134 November 26, 2020 J.Apostolakis                   105 November 26, 2020 J.Apostolakis                   - field-V10-06-09
135 -------------------------------                   106 -------------------------------
136 - Fix to enable G4TDormandPrince45 to be used     107 - Fix to enable G4TDormandPrince45 to be used with G4InterpolationDriver.
137                                                   108 
138   This fix was needed because G4Interpolation     109   This fix was needed because G4Interpolation driver creates additional
139   copies of the stepper class.  Due to this it    110   copies of the stepper class.  Due to this it must obtain the equation
140   with the type of the templated stepper.         111   with the type of the templated stepper.
141                                                   112 
142   For a stepper to be used with 'G4Interpolati    113   For a stepper to be used with 'G4InterpolationDriver', it must
143   implement the method                            114   implement the method
144      Equation_type  GetSpecificEquation()         115      Equation_type  GetSpecificEquation()
145   Templated steppers must ensure that the retu    116   Templated steppers must ensure that the return type 'Equation_type'
146   is the specific equation type of the templat    117   is the specific equation type of the template.
147                                                   118 
148   This method was added to G4DormandPrince745     119   This method was added to G4DormandPrince745 and G4TDormandPrince745.
149                                                   120 
150 October 12, 2020 J.Apostolakis                    121 October 12, 2020 J.Apostolakis                    - field-V10-06-08
151 ------------------------------                    122 ------------------------------
152 - Fixes & refinements - mostly in templated cl    123 - Fixes & refinements - mostly in templated classes, tests.
153   Compilation fixes, e.g. missing include <cas    124   Compilation fixes, e.g. missing include <cassert>.
154   Refinements, e.g. int -> unsigned int in tem    125   Refinements, e.g. int -> unsigned int in templates
155                                                   126 
156 October 9, 2020 J.Apostolakis                     127 October 9, 2020 J.Apostolakis                     - field-V10-06-07
157 -----------------------------                     128 -----------------------------
158 - Configure G4ChordFinder to use templated G4T    129 - Configure G4ChordFinder to use templated G4TDormandPrince45 as the
159   default stepper for magnetic fields (when on    130   default stepper for magnetic fields (when one is not chosen
160   explicitly by the application.)                 131   explicitly by the application.)
161                                                   132 
162 October 9, 2020 J.Apostolakis & J. Xie            133 October 9, 2020 J.Apostolakis & J. Xie           - field-V10-06-06
163 --------------------------------------            134 --------------------------------------
164 - Adapted classes that avoid virtual calls for    135 - Adapted classes that avoid virtual calls for field, equation, stepper
165   created by Josh Xie (Google Summer of Code 2    136   created by Josh Xie (Google Summer of Code 2014), supervised by
166   S. Wenzel & J.A.                                137   S. Wenzel & J.A.
167                                                   138 
168   The revised design and implementations inclu    139   The revised design and implementations include:
169    * equation of motion templated on the field    140    * equation of motion templated on the field type;
170    * steppers templated on the type of equatio    141    * steppers templated on the type of equation and the number of integration
171      variables.                                   142      variables.
172   In addition the key methods are marked as 'i    143   In addition the key methods are marked as 'inline' to enable compilers, where
173   they judge possible, to embed them and avoid    144   they judge possible, to embed them and avoid any function calls.
174                                                   145 
175   These classes can be combined also with the     146   These classes can be combined also with the templated drivers
176   (G4IntegrationStepper, G4FSALIntegrationStep    147   (G4IntegrationStepper, G4FSALIntegrationStepper and/or G4InterpolationDriver
177   to avoid virtual calls in all the levels up     148   to avoid virtual calls in all the levels up to the chord finder's call to
178   the integration driver. ]                       149   the integration driver. ]
179                                                   150 
180   The types of stepper currently available are    151   The types of stepper currently available are
181   i) the originally developed intermediate ord    152   i) the originally developed intermediate order stepper:
182                                                   153 
183    - Name (templated) -  original  --   Order/    154    - Name (templated) -  original  --   Order/    - Comments
184                                            / E    155                                            / Embdedded
185    ===========================================    156    ==============================================================================
186    G4TClassicalRK4:     G4ClassicalRK4   4th /    157    G4TClassicalRK4:     G4ClassicalRK4   4th / no   robust, old default
187    G4TCashKarpRKF45:    G4CashKarpRKF45  5th /    158    G4TCashKarpRKF45:    G4CashKarpRKF45  5th / yes  first embedded RK in G4
188                                                   159 
189   ii) the original low order steppers (for spe    160   ii) the original low order steppers (for specialised uses)
190    G4TSimpleHeum:       G4SimpleHeum     3rd /    161    G4TSimpleHeum:       G4SimpleHeum     3rd / no  lower order alternative
191    G4TSimpleRunge:      G4SimpleRunge    2nd /    162    G4TSimpleRunge:      G4SimpleRunge    2nd / no  very low order
192    G4TExplicitEuler:    G4ExplicitEuler  1st /    163    G4TExplicitEuler:    G4ExplicitEuler  1st / no  lowest order - for checks only
193                                                   164 
194   and                                             165   and
195   iii) some newly adapted stepper(s) /  ( J.A.    166   iii) some newly adapted stepper(s) /  ( J.A. Oct 2020 )
196    G4TDormandPrince45  G4DormandPrince745 5th/    167    G4TDormandPrince45  G4DormandPrince745 5th/ yes  default / preferred
197    ===========================================    168    ==============================================================================
198                                                   169 
199   Note: Additional lower-order steppers are no    170   Note: Additional lower-order steppers are not yet available.
200         'Vector' steppers (using blaze) are no    171         'Vector' steppers (using blaze) are not supported.
201                                                   172 
202   Experimental versions of fields with inline     173   Experimental versions of fields with inline methods:
203      G4TUniformMagField,  G4TQuadrupoleMagFiel    174      G4TUniformMagField,  G4TQuadrupoleMagField
204   are included to show how the field evaluatio    175   are included to show how the field evaluation GetFieldValue can also be inlined.
205                                                   176 
206   Note 2:                                         177   Note 2:
207   Steppers which are not embedded obtain their    178   Steppers which are not embedded obtain their error estimates by
208   breaking the step into two halves, then comp    179   breaking the step into two halves, then comparing with the whole step.
209   As a result many more field / derivative eva    180   As a result many more field / derivative evaluations are needed than
210   embedded steppers of the same order, but the    181   embedded steppers of the same order, but the reliability of their error
211   estimation has different properties; so it m    182   estimation has different properties; so it may be more robust in some cases. )
212                                                   183 
213 June 15, 2020 G.Cosmo                             184 June 15, 2020 G.Cosmo                            - field-V10-06-05
214 ---------------------                             185 ---------------------
215 - Implemented move constructor and operator fo    186 - Implemented move constructor and operator for G4FieldTrack.
216                                                   187 
217 March 24, 2020 J.Apostolakis                      188 March 24, 2020 J.Apostolakis                     - field-V10-06-04
218 ----------------------------                      189 ----------------------------
219 - New class G4DriverReporter to print progress    190 - New class G4DriverReporter to print progress of drivers.
220    Used for debugging differences between Old     191    Used for debugging differences between Old & fixed MagIntDriver
221 - Revisions in testing CMake config file and s    192 - Revisions in testing CMake config file and stepper/driver test
222    for magnetic field.                            193    for magnetic field.
223                                                   194 
224 March 13, 2020 J.Apostolakis                      195 March 13, 2020 J.Apostolakis                     - field-V10-06-03
225 ----------------------------                      196 ----------------------------
226 - G4VIntegrationDriver & dependent driver clas    197 - G4VIntegrationDriver & dependent driver classes:
227     Added new virtual StreamInfo() method,        198     Added new virtual StreamInfo() method,
228        & used it to implement operator << for     199        & used it to implement operator << for G4VIntegrationDriver
229     Made (virtual) DoesReIntegrate() const.       200     Made (virtual) DoesReIntegrate() const.
230 - G4MagInt_Driver: Fixed max iterations & clar    201 - G4MagInt_Driver: Fixed max iterations & clarified that its
231      ComputeNewStepSize does NOT (yet) respect    202      ComputeNewStepSize does NOT (yet) respect maximum reduction factor (0.1).
232   ( Done to enable comparisons with new G4Inte    203   ( Done to enable comparisons with new G4IntegrationDriver<> implementation.)
233 - G4OldMagIntDriver maintains all old behaviou    204 - G4OldMagIntDriver maintains all old behaviour of G4MagInt_Driver.
234                                                   205 
235                                                   206 
236 January 22, 2020 G.Cosmo                          207 January 22, 2020 G.Cosmo                         - field-V10-06-02
237 ------------------------                          208 ------------------------
238 - Fixed compilation errors and configuration f    209 - Fixed compilation errors and configuration for field07 unit test.
239                                                   210 
240 January 13, 2020 G.Cosmo                          211 January 13, 2020 G.Cosmo                         - field-V10-06-01
241 ------------------------                          212 ------------------------
242 - Turn off verbosity flags by default in G4Int    213 - Turn off verbosity flags by default in G4IntegratorDriver,
243   G4InterpolationDriver and G4MagIntegratorDri    214   G4InterpolationDriver and G4MagIntegratorDriver.
244                                                   215 
245 December 10, 2019 B.Morgan                        216 December 10, 2019 B.Morgan                       - field-V10-06-00
246 --------------------------                        217 --------------------------
247 - Cleanup CMake build, removing obsolete granu    218 - Cleanup CMake build, removing obsolete granular library options and
248   explicit include_directories.                   219   explicit include_directories.
249                                                   220 
250 November 14, 2019 J.Apostolakis                   221 November 14, 2019 J.Apostolakis                  - field-V10-05-17
251 -------------------------------                   222 -------------------------------
252 - Added method / attribute to G4VIntegrationDr    223 - Added method / attribute to G4VIntegrationDriver DoesReIntegrate()
253    to inform whether the driver recomputes seg    224    to inform whether the driver recomputes segment when
254    AccurateAdvance is called.                     225    AccurateAdvance is called.
255                                                   226 
256 October 27, 2019 D.Sorokin                        227 October 27, 2019 D.Sorokin                       - field-V10-05-16
257 ----------------------------                      228 ----------------------------
258 - Remove statistics printouts from destructor     229 - Remove statistics printouts from destructor of G4BFieldIntegrationDriver
259                                                   230 
260 October 24, 2019 H.Burkhardt                      231 October 24, 2019 H.Burkhardt                       - field-V10-05-15
261 ----------------------------                      232 ----------------------------
262 - Standard sextupole magnet first implementati    233 - Standard sextupole magnet first implementation G4SextupoleMagField.cc,.hh
263                                                   234 
264 October 18, 2019 D. Sorokin                       235 October 18, 2019 D. Sorokin                         - field-V10-05-14
265 -----------------------------------------         236 -----------------------------------------
266 - Fix floating point exception in G4BFieldInte    237 - Fix floating point exception in G4BFieldIntegrationDriver.
267                                                   238 
268 October 1, 2019 G. Cosmo                          239 October 1, 2019 G. Cosmo                         - field-V10-05-13
269 -----------------------------------------         240 -----------------------------------------
270 - Fixed unitialised data in G4EqMagElectricFie    241 - Fixed unitialised data in G4EqMagElectricField and G4EqGravityField,
271   reported by Coverity.                           242   reported by Coverity.
272                                                   243 
273 September 12, 2019 G. Cosmo                       244 September 12, 2019 G. Cosmo                      - field-V10-05-12
274 -----------------------------------------         245 -----------------------------------------
275 - Minor C++11 revision. Code formatting and cl    246 - Minor C++11 revision. Code formatting and cleanup.
276                                                   247 
277 July 8, 2019 D. Sorokin                           248 July 8, 2019 D. Sorokin                          - field-V10-05-11
278 -----------------------------------------         249 -----------------------------------------
279 - G4BFieldIntegrationDriver: an attempt to sol    250 - G4BFieldIntegrationDriver: an attempt to solve looping particle issue.
280                                                   251 
281 July 3, 2019 D. Sorokin                           252 July 3, 2019 D. Sorokin                          - field-V10-05-10
282 -----------------------------------------         253 -----------------------------------------
283 - Make G4InterpolationDriver default for perfo    254 - Make G4InterpolationDriver default for performance assessments.
284                                                   255 
285 June 25, 2019 D. Sorokin                          256 June 25, 2019 D. Sorokin                          - field-V10-05-09
286 -----------------------------------------         257 -----------------------------------------
287 - Fix Dormand-Prince 5th order interpolation m    258 - Fix Dormand-Prince 5th order interpolation method
288                                                   259 
289 June 20, 2019 D. Sorokin                          260 June 20, 2019 D. Sorokin                          - field-V10-05-08
290 -----------------------------------------         261 -----------------------------------------
291 - New version of G4InterpolationDriver with mu    262 - New version of G4InterpolationDriver with multiple steppers for each substep.
292                                                   263 
293 June 12, 2019 D. Sorokin & J. Apostolakis         264 June 12, 2019 D. Sorokin & J. Apostolakis         - field-V10-05-07
294 -----------------------------------------         265 -----------------------------------------
295 - Revert to use G4IntegrationDriver as default    266 - Revert to use G4IntegrationDriver as default in G4ChordFinder
296     ( c-tor for magnetic field. ).                267     ( c-tor for magnetic field. ).
297   Change to use concrete type of Stepper as te    268   Change to use concrete type of Stepper as template parameter
298                                                   269 
299 June 10, 2019 Dmitry Sorokin                      270 June 10, 2019 Dmitry Sorokin                      - field-V10-05-06
300 -------------------------                         271 -------------------------
301 - Remove division in G4DormandPrince745::Inter    272 - Remove division in G4DormandPrince745::Interpolate4thOrder.
302                                                   273 
303 June 7, 2019 Dmitry Sorokin                       274 June 7, 2019 Dmitry Sorokin                      - field-V10-05-05
304 -------------------------                         275 -------------------------
305 - Switch to original chord finding algorithm i    276 - Switch to original chord finding algorithm in G4InterpolationDriver
306 - Reset step estimate in G4MagInt_Driver only     277 - Reset step estimate in G4MagInt_Driver only at the beginning of a track
307 - Change G4VERBOSE to G4FIELD_DEBUG in G4Inter    278 - Change G4VERBOSE to G4FIELD_DEBUG in G4InterpolationDriver to speed-up
308                                                   279 
309 June 4, 2019 Dmitry Sorokin                       280 June 4, 2019 Dmitry Sorokin                      - field-V10-05-04
310 -------------------------                         281 -------------------------
311 - Use FSAL property of G4DormandPrince745 in G    282 - Use FSAL property of G4DormandPrince745 in G4InterpolationDriver.
312                                                   283 
313 June 3, 2019 Dmitry Sorokin                       284 June 3, 2019 Dmitry Sorokin                      - field-V10-05-03
314 -------------------------                         285 -------------------------
315 - Fix memory churn in G4InterpolationDriver.      286 - Fix memory churn in G4InterpolationDriver.
316                                                   287 
317 May 20, 2019 Dmitry Sorokin                       288 May 20, 2019 Dmitry Sorokin                      - field-V10-05-02
318 -------------------------                         289 -------------------------
319 - Make interpolation driver default for immedi    290 - Make interpolation driver default for immediate testing.
320                                                   291 
321 April 8, 2019 H.Burkhardt                         292 April 8, 2019 H.Burkhardt                        - field-V10-05-01
322 -------------------------                         293 -------------------------
323 - Correcting transformation to local system in    294 - Correcting transformation to local system in G4QuadrupoleMagField.cc
324                                                   295 
325 March 20, 2019 G.Cosmo                            296 March 20, 2019 G.Cosmo                           - field-V10-05-00
326 ----------------------                            297 ----------------------
327 - Corrected 'RegularStepperName' in G4ChordFin    298 - Corrected 'RegularStepperName' in G4ChordFinder to refer to the actual
328   default stepper G4DormandPrince745 rather th    299   default stepper G4DormandPrince745 rather than G4NystromRK4...
329                                                   300 
330 November 9, 2018 J.Apostolakis                    301 November 9, 2018 J.Apostolakis                   - field-V10-04-17
331 ------------------------------                    302 ------------------------------
332 - Small fixes for warnings in compilation.        303 - Small fixes for warnings in compilation.
333 - Revisions of descriptions of recent tags (fo    304 - Revisions of descriptions of recent tags (for clarification.)
334                                                   305 
335 September 26, 2018 D.Sorokin                      306 September 26, 2018 D.Sorokin                   - field-V10-04-15, -16
336 ----------------------------                      307 ----------------------------
337 - Implemented G4InterpolationDriver. This driv    308 - Implemented G4InterpolationDriver. This driver uses a Runge-Kutta
338   stepper with interpolation property to integ    309   stepper with interpolation property to integrate EoM with error control.
339   The field evaluations used to calculate the     310   The field evaluations used to calculate the enpoint of an 'advance' can
340   be reused to obtain one or multiple internal    311   be reused to obtain one or multiple internal points on the curve (x,p).
341   So in steps in which an intersection is foun    312   So in steps in which an intersection is found, the number of field
342   evaluations are expected to be reduced subst    313   evaluations are expected to be reduced substantially.
343                                                   314 
344 September 13, 2018 D.Sorokin                      315 September 13, 2018 D.Sorokin                   - field-V10-04-13, -14
345 ----------------------------                      316 ----------------------------
346 - G4NystromRK4 creates G4CachedMagneticField i    317 - G4NystromRK4 creates G4CachedMagneticField if it was not provided.
347 - Removed G4MagIntegratorStepper::ComputeRight    318 - Removed G4MagIntegratorStepper::ComputeRightHandSide() method
348   (all calls now use non-virtual RightHandSide    319   (all calls now use non-virtual RightHandSide() method instead).
349 - Reversed declaration of final for the class     320 - Reversed declaration of final for the class G4UniformMagField.
350   Returned to previous status: only GetFieldVa    321   Returned to previous status: only GetFieldValue method is final.
351   ( This avoid need to change examples/tests a    322   ( This avoid need to change examples/tests and potentially migrate
352     users' code. )                                323     users' code. )
353                                                   324 
354 September 12, 2018 D.Sorokin                      325 September 12, 2018 D.Sorokin                   - field-V10-04-11, -12
355 ----------------------------                      326 ----------------------------
356 - Created new experimental driver G4BFieldInte    327 - Created new experimental driver G4BFieldIntegrationDriver for pure
357   magnetic fields.  In QuickAdvance it uses he    328   magnetic fields.  In QuickAdvance it uses helix stepper when the
358   estimated 'helix' rotation angle is larger t    329   estimated 'helix' rotation angle is larger than pi/3.
359 - G4NystromRK4 uses G4CachedMagneticField for     330 - G4NystromRK4 uses G4CachedMagneticField for caching values.
360   NOTE: It now the user's responsibility to cr    331   NOTE: It now the user's responsibility to create G4CachedMagneticField.
361   ( The alternative is to create G4CachedMagne    332   ( The alternative is to create G4CachedMagneticField inside G4NystromRK4.
362     But this would have several disadvantages:    333     But this would have several disadvantages:
363     * It would change the field in the user's     334     * It would change the field in the user's equation of motion;
364     * G4NystromRK4 is not able to check whethe    335     * G4NystromRK4 is not able to check whether the user calls the method
365       that changes the equation using SetEquat    336       that changes the equation using SetEquationOfMotion  method. )
366                                                   337 
367 July 10, 2018 D. Sorokin              - field-    338 July 10, 2018 D. Sorokin              - field-V10-04-08, -09, -10
368 ------------------------ Tags by J. Apostolaki    339 ------------------------ Tags by J. Apostolakis
369 - Corrections in calculation of chord distance    340 - Corrections in calculation of chord distance in G4DormandPrince745
370   ( use 4th order interpolation from Shampine     341   ( use 4th order interpolation from Shampine 1986 for mid-point. )
371 - Revised G4FieldUtils: moved copy() method fr    342 - Revised G4FieldUtils: moved copy() method from steppers,
372   added 2 new setValue: simple & variadic meth    343   added 2 new setValue: simple & variadic methods.
373 - Fixes to copy input time in ModifiedMidpoint    344 - Fixes to copy input time in ModifiedMidpoint, CashKarp, G4RK547FEq1/2/3
374   Bogacki-Shampine 4/5 and 2/3  (note: B-S 2/3    345   Bogacki-Shampine 4/5 and 2/3  (note: B-S 2/3 largely rewritten )
375   Dormand Prince 4/5, 5/6 and 7/8,  and Tsitou    346   Dormand Prince 4/5, 5/6 and 7/8,  and Tsitouras steppers.
376 - Trial revision in G4BulirschStoer to reduce     347 - Trial revision in G4BulirschStoer to reduce number of division
377   operations (J.A.)                               348   operations (J.A.)
378 - Fix for unitialised pIntStepper pointer in G    349 - Fix for unitialised pIntStepper pointer in G4FSALIntegrationDriver
379   constructor.  Revision of data member variab    350   constructor.  Revision of data member variable names.  ( J.A. )
380                                                   351 
381 June 15, 2018 G.Cosmo                   - fiel    352 June 15, 2018 G.Cosmo                   - field-V10-04-07
382 ---------------------                             353 ---------------------
383 - Fixed minor Coverity defects in G4BurlischSt    354 - Fixed minor Coverity defects in G4BurlischStoer and G4ModifiedMidPoint.
384   Code cleanup.                                   355   Code cleanup.
385                                                   356 
386 June 13, 2018 G.Cosmo                   - fiel    357 June 13, 2018 G.Cosmo                   - field-V10-04-06
387 ---------------------                             358 ---------------------
388 - Leave override final only for clone() method    359 - Leave override final only for clone() method in G4UniformMagField,
389   not in destructor...                            360   not in destructor...
390                                                   361 
391 June 12, 2018 G.Cosmo                   - fiel    362 June 12, 2018 G.Cosmo                   - field-V10-04-05
392 ---------------------                             363 ---------------------
393 - Use G4Exception warnings instead of streamin    364 - Use G4Exception warnings instead of streaming to cerr.
394 - Added override final for virtual methods in     365 - Added override final for virtual methods in G4UniformMagField (J.Apostolakis).
395 - Some code cleanup.                              366 - Some code cleanup.
396                                                   367 
397 Apr 30, 2018 J. Apostolakis             - fiel    368 Apr 30, 2018 J. Apostolakis             - field-V10-04-04
398 ---------------------------                       369 ---------------------------
399 - G4VIntegrationDriver and derived classes        370 - G4VIntegrationDriver and derived classes
400                                                   371 
401   Added new virtual method in G4VIntegrationDr    372   Added new virtual method in G4VIntegrationDriver :
402       void RenewStepperAndAdjust(G4MagIntegrat    373       void RenewStepperAndAdjust(G4MagIntegratorStepper *pItsStepper)
403   which used to exist in G4MagInt_Driver.         374   which used to exist in G4MagInt_Driver.
404   ( Its absence caused a problem in some exist    375   ( Its absence caused a problem in some existing user code since 10.4. )
405                                                   376 
406   This method must be defined in those derived    377   This method must be defined in those derived driver classes which accept
407   a Runge Kutta stepper ( i.e. some or any typ    378   a Runge Kutta stepper ( i.e. some or any type of G4MagIntegratorStepper )
408                                                   379 
409 - G4IntegrationDriver, G4FSALIntegrationDriver    380 - G4IntegrationDriver, G4FSALIntegrationDriver
410   Defined default implementation (which throws    381   Defined default implementation (which throws a Fatal G4Exception), and
411   implementations in the templated classes G4I    382   implementations in the templated classes G4IntegrationDriver and
412   G4FSALIntegrationDriver which check the type    383   G4FSALIntegrationDriver which check the type (via dynamic cast) and
413   change the stepper if it is appropriate.        384   change the stepper if it is appropriate.
414                                                   385 
415 Feb 13, 2018 J. Apostolakis             - fiel    386 Feb 13, 2018 J. Apostolakis             - field-V10-04-03
416 ---------------------------                       387 ---------------------------
417 - Change in G4FieldManager::CreateChordFinder     388 - Change in G4FieldManager::CreateChordFinder to cope
418   better with case that field argument is null    389   better with case that field argument is null.
419                                                   390 
420 Feb 13, 2018 D. Sorokin                 - fiel    391 Feb 13, 2018 D. Sorokin                 - field-V10-04-01
421 -----------------------                 - fiel    392 -----------------------                 - field-V10-04-02 (comp. fix)
422 - Introduced Bulirsch-Stoer method of integrat    393 - Introduced Bulirsch-Stoer method of integration, an alternative
423   to Runge-Kutta based on the mid-point method    394   to Runge-Kutta based on the mid-point method.
424   Separate driver derived G4VIntegrationDriver    395   Separate driver derived G4VIntegrationDriver and implemented
425   using specialisation of G4IntegrationDriver     396   using specialisation of G4IntegrationDriver template class.
426   Note: this method does not have a RK 'Steppe    397   Note: this method does not have a RK 'Stepper' !
427                                                   398 
428 Jan 31, 2018 J. Apostolakis                       399 Jan 31, 2018 J. Apostolakis
429 ---------------------------                       400 ---------------------------
430 - G4MagneticField no longer inherits from G4El    401 - G4MagneticField no longer inherits from G4ElectroMagneticField
431   This was incorrect, and allowed a user to pr    402   This was incorrect, and allowed a user to provide a full EM
432   field, but obtain the force only from the B-    403   field, but obtain the force only from the B-field when using
433   the equation created in the G4ChordFinder co    404   the equation created in the G4ChordFinder constructor.
434    => potential interface change.                 405    => potential interface change.
435                                                   406 
436   Result: It is no longer possible to use the     407   Result: It is no longer possible to use the equation of motion for a
437      pure magnetic field for the case of a mix    408      pure magnetic field for the case of a mixed electromagnetic field.
438      This change is desired, and is a *protect    409      This change is desired, and is a *protection* as that inadvertent
439      use led to incorrect results.                410      use led to incorrect results.
440   Instead the full chain of classes for equati    411   Instead the full chain of classes for equation of full EM field,
441      steppers and driver must be used for the     412      steppers and driver must be used for the case of the 'full' EM field.
442                                                   413 
443 Feb 9, 2017 G.Cosmo                     - fiel    414 Feb 9, 2017 G.Cosmo                     - field-V10-04-00
444 -------------------                               415 -------------------
445 - Removed static data from G4FSALIntegrationDr    416 - Removed static data from G4FSALIntegrationDriver, G4IntegrationDriver and
446   G4MagIntegratorDriver and moved to base clas    417   G4MagIntegratorDriver and moved to base class as normal data members.
447   Fix required for allowing proper symbol expo    418   Fix required for allowing proper symbol exporting on Windows DLLs.
448                                                   419 
449 Nov 17, 2017 J. Apostolakis             - fiel    420 Nov 17, 2017 J. Apostolakis             - field-V10-03-30
450 ---------------------------                       421 ---------------------------
451 - G4ChordFinder: Reinstated old driver G4MagIn    422 - G4ChordFinder: Reinstated old driver G4MagInt_Drv, for use
452     with G4DormandPrince745 (5th order) in G4C    423     with G4DormandPrince745 (5th order) in G4ChordFinder's
453     2nd constructor (with magnetic field.)        424     2nd constructor (with magnetic field.)
454   ( Reverses change made in field-V10-03-27 )     425   ( Reverses change made in field-V10-03-27 )
455                                                   426 
456 Nov 16, 2017 J. Apostolakis             - fiel    427 Nov 16, 2017 J. Apostolakis             - field-V10-03-29
457 ---------------------------                       428 ---------------------------
458 - Suppressed statistics printing in G4ChordFin    429 - Suppressed statistics printing in G4ChordFinder and new drivers
459    ( G4IntegrationDriver and G4FSALIntegration    430    ( G4IntegrationDriver and G4FSALIntegrationDriver )
460    protecting them by verbosity flags.            431    protecting them by verbosity flags.
461                                                   432 
462 - Minor fix to initialise scalar data member i    433 - Minor fix to initialise scalar data member in new steppers
463   G4RK547FEq1, G4RK547FEq2 and G4RK547FEq3.       434   G4RK547FEq1, G4RK547FEq2 and G4RK547FEq3.
464   Fixes coverity issues 97886, 97888 and 97889    435   Fixes coverity issues 97886, 97888 and 97889.
465                                                   436 
466                                                   437 
467 Nov 14, 2017 J. Apostolakis             - fiel    438 Nov 14, 2017 J. Apostolakis             - field-V10-03-28
468 ---------------------------                       439 ---------------------------
469 - Suppressed extra verbosity in G4ChordFinder.    440 - Suppressed extra verbosity in G4ChordFinder.
470 - Fix in G4FSALDormandPrince745 for unitialise    441 - Fix in G4FSALDormandPrince745 for unitialised variables.
471   Initialise ak8[], ak9[] in constructor. This    442   Initialise ak8[], ak9[] in constructor. This avoids repeated
472   memory allocation, without deletion - i.e. a    443   memory allocation, without deletion - i.e. a memory leak.
473 - Initialise fLastStepLength and/or fAuxSteppe    444 - Initialise fLastStepLength and/or fAuxStepper data members in
474   in constructors of G4DormandPrince745 and G4    445   in constructors of G4DormandPrince745 and G4FSALDormandPrince745.
475   Coverity issues: 67394 (G4FSALDormandPrince7    446   Coverity issues: 67394 (G4FSALDormandPrince745)
476                    67391     (G4DormandPrince7    447                    67391     (G4DormandPrince745)
477                                                   448 
478 Nov 14, 2017 J. Apostolakis             - fiel    449 Nov 14, 2017 J. Apostolakis             - field-V10-03-27 (fixed)
479 ---------------------------             - fiel    450 ---------------------------             - field-V10-03-26
480 - G4ChordFinder: changes in default stepper &     451 - G4ChordFinder: changes in default stepper & driver in 2nd constructor.
481   in which only a magnetic field is provided (    452   in which only a magnetic field is provided (used widely) :
482                                                   453 
483   * Reinstated G4DormandPrince745 (5th order)     454   * Reinstated G4DormandPrince745 (5th order) as default in G4ChordFinder.
484    (corrected -23, which missed to initialise     455    (corrected -23, which missed to initialise driver.)
485                                                   456 
486   * New templated driver G4IntegrationDriver i    457   * New templated driver G4IntegrationDriver is chosen for the
487     the simple constuctors of G4ChordFinder an    458     the simple constuctors of G4ChordFinder and G4FieldManager
488     which only require a (pure) magnetic field    459     which only require a (pure) magnetic field. ( Details below.)
489                                                   460 
490   Additional information and details:             461   Additional information and details:
491   * New optional parameter to constructor of G    462   * New optional parameter to constructor of G4ChordFinder which
492     allow to create an FSAL stepper and corres    463     allow to create an FSAL stepper and corresponding driver instead.
493     This aims to reuse some derivatives, thus     464     This aims to reuse some derivatives, thus reducing computations
494     of derivatives and thus field evaluations.    465     of derivatives and thus field evaluations. )
495                                                   466 
496   * The templated 'driver' classes, available     467   * The templated 'driver' classes, available and now chosen in
497     G4ChordFinder's 2nd constructor, are used     468     G4ChordFinder's 2nd constructor, are used per type of stepper
498     class:                                        469     class:
499      - G4IntegrationDriver      for non-FSAL      470      - G4IntegrationDriver      for non-FSAL     steppers
500      - G4FSALIntegrationDriver  for FSAL-capab    471      - G4FSALIntegrationDriver  for FSAL-capable steppers
501     These make non-virtual calls to the steppe    472     These make non-virtual calls to the stepper, as they know its type.
502                                                   473 
503 - First fix in G4FSALDormandPrince745 for memo    474 - First fix in G4FSALDormandPrince745 for memory leak, missing
504   delete[] fInitialDyDx in destructor. Coverit    475   delete[] fInitialDyDx in destructor. Coverity issue: 96383.
505                                                   476 
506 ----------------------------------------------    477 ----------------------------------------------------------------------
507 Multiple tags (below) were to better test step    478 Multiple tags (below) were to better test stepper/driver combinations:
508 Date   Tagger         Tag name        Stepper     479 Date   Tagger         Tag name        Stepper                Driver
509 ==============================================    480 ======================================================================
510 Nov 3, D. Sorokin     field-V10-03-25 G4FSALBo    481 Nov 3, D. Sorokin     field-V10-03-25 G4FSALBogackiShampine45 FSAL
511 Nov 3, J. Apostolakis field-V10-03-24 G4FSALDo    482 Nov 3, J. Apostolakis field-V10-03-24 G4FSALDormandPrince745  FSAL  ok
512 Nov 2, J. Apostolakis field-V10-03-23 G4Dorman    483 Nov 2, J. Apostolakis field-V10-03-23 G4DormandPrince745      new
513 Nov 2, J. Apostolakis field-V10-03-22 G4RK547F    484 Nov 2, J. Apostolakis field-V10-03-22 G4RK547FEq1             FSAL  ok
514 ----------------------------------------------    485 ----------------------------------------------------------------------
515 Glossary of drivers:                              486 Glossary of drivers:
516    the FSAL driver = using G4FSALIntegrationDr    487    the FSAL driver = using G4FSALIntegrationDriver (templated)
517    the new  driver = using G4IntegrationDriver    488    the new  driver = using G4IntegrationDriver     (templated)
518 ==============================================    489 ===================================================================
519                                                   490 
520 Nov  2, 2017 D. Sorokin                 - fiel    491 Nov  2, 2017 D. Sorokin                 - field-V10-03-21
521 ---------------------------------------           492 ---------------------------------------
522 - Added new steppers G4RK547FEq{1,2,3} which i    493 - Added new steppers G4RK547FEq{1,2,3} which implement 7 stage embedded
523   Runge-Kutta 4,5 pairs with:                     494   Runge-Kutta 4,5 pairs with:
524      - FSAL property (return derivative at end    495      - FSAL property (return derivative at endpoint for use in next step),
525      - stable equilibrium states ( improved ha    496      - stable equilibrium states ( improved handling of difficulties in
526          integration: better stability in choo    497          integration: better stability in choosing step size. )
527   Each one can be used with all existing Runge    498   Each one can be used with all existing Runge-Kutta drivers:
528      - G4FSALIntegrationDriver, using its FSAL    499      - G4FSALIntegrationDriver, using its FSAL property;
529      - G4IntegrationDriver    without its FSAL    500      - G4IntegrationDriver    without its FSAL property.
530      - the original G4MagInt_Driver, also igno    501      - the original G4MagInt_Driver, also ignoring FSAL.
531                                                   502 
532 - Reinstated G4DormandPrince745  ( known widel    503 - Reinstated G4DormandPrince745  ( known widely as DOPRI5 ) as
533   the default RK method in G4ChordFinder for p    504   the default RK method in G4ChordFinder for pure magnetic fields.
534     ( Withdrew G4BogackiShampine45. )  J. Apos    505     ( Withdrew G4BogackiShampine45. )  J. Apostolakis
535                                                   506 
536 Nov  1, 2017 J. Apostolakis             - fiel    507 Nov  1, 2017 J. Apostolakis             - field-V10-03-20
537 ---------------------------                       508 ---------------------------
538 - Made G4BogackiShampine45 the default RK meth    509 - Made G4BogackiShampine45 the default RK method in G4ChordFinder
539    for pure magnetic fields.                      510    for pure magnetic fields.
540                                                   511 
541 Oct 30, 2017 D. Sorokin/J.Apostolakis   - fiel    512 Oct 30, 2017 D. Sorokin/J.Apostolakis   - field-V10-03-19
542 ---------------------------------------           513 ---------------------------------------
543 - add GetStepper method to G4VIntegrationDrive    514 - add GetStepper method to G4VIntegrationDriver for backward compatibility
544                                                   515 
545 Oct 20, 2017 D. Sorokin                 - fiel    516 Oct 20, 2017 D. Sorokin                 - field-V10-03-18
546 ---------------------------------------           517 ---------------------------------------
547 Introduced base class for any driver algorithm    518 Introduced base class for any driver algorithm (G4VIntegrationDriver)
548 New concrete classes added:                       519 New concrete classes added:
549 - G4IntegrationDriver: implementation of templ    520 - G4IntegrationDriver: implementation of templated driver algorithm
550   for non-fsal explicit Runge-Kutta steppers      521   for non-fsal explicit Runge-Kutta steppers
551 - G4FSALIntegrationDriver: implementation of d    522 - G4FSALIntegrationDriver: implementation of driver algorithm for
552   FSAL explicit Runge-Kutta steppers.             523   FSAL explicit Runge-Kutta steppers.
553 Existing class G4MagInt_Drv remains, deriving     524 Existing class G4MagInt_Drv remains, deriving from base class.
554                                                   525 
555 - Expanded testing in testProElectroMagField (    526 - Expanded testing in testProElectroMagField (higher precision, new driver)
556    ( J. Apostolakis)                              527    ( J. Apostolakis)
557                                                   528 
558 Oct 13, 2017 D. Sorokin                 - fiel    529 Oct 13, 2017 D. Sorokin                 - field-V10-03-17
559 ---------------------------------------           530 ---------------------------------------
560 - add G4FieldUtils.hh, G4FieldUtils.icc, G4Fie    531 - add G4FieldUtils.hh, G4FieldUtils.icc, G4FieldUtils.cc:
561   utilities to extract data from arrays in con    532   utilities to extract data from arrays in conventions of the
562   magneticfield integration.                      533   magneticfield integration.
563                                                   534 
564 Oct 13, 2017 G. Cosmo                   - fiel    535 Oct 13, 2017 G. Cosmo                   - field-V10-03-16
565 ---------------------------------------           536 ---------------------------------------
566 - G4NystromRK4: use consistenly G4 types for d    537 - G4NystromRK4: use consistenly G4 types for double and bool in G4NystromRK4.
567                                                   538 
568 Aug 31, 2017 J. Apostolakis             - fiel    539 Aug 31, 2017 J. Apostolakis             - field-V10-03-15
569 ---------------------------------------           540 ---------------------------------------
570 - Made G4DormandPrince457 the default Stepper     541 - Made G4DormandPrince457 the default Stepper for magnetic fields in
571   G4ChordFinder - when a driver/stepper is not    542   G4ChordFinder - when a driver/stepper is not specified.
572                                                   543 
573 Aug 31, 2017 J. Apostolakis             - fiel    544 Aug 31, 2017 J. Apostolakis             - field-V10-03-14
574 ---------------------------------------           545 ---------------------------------------
575 - G4NystromRK4: used caching of momentum magni    546 - G4NystromRK4: used caching of momentum magnitude ( & its inverse)
576   to reduce overhead of fix in field-V10-03-10    547   to reduce overhead of fix in field-V10-03-10.
577                                                   548 
578 Aug 25, 2017 J. Apostolakis             - fiel    549 Aug 25, 2017 J. Apostolakis             - field-V10-03-12, 13
579 ---------------------------------------           550 ---------------------------------------
580 - G4MagInt_Driver: added GetEquationOfMotion m    551 - G4MagInt_Driver: added GetEquationOfMotion method for enabling common
581   code with future develoment.                    552   code with future develoment.
582                                                   553 
583 Aug 24, 2017 D.Sorokin & J. Apostolakis - fiel    554 Aug 24, 2017 D.Sorokin & J. Apostolakis - field-V10-03-11
584 ---------------------------------------           555 ---------------------------------------
585 - G4NystromRK4: correction in call to getField    556 - G4NystromRK4: correction in call to getField: needs p[4], not p[3]
586     ( Spotted by D. Sorokin )                     557     ( Spotted by D. Sorokin )
587   Also small cleanup of testing code into 2 sm    558   Also small cleanup of testing code into 2 small new methods.
588     ( J. Apostolakis )                            559     ( J. Apostolakis )
589                                                   560 
590 Aug 23, 2017 J.Apostolakis              - fiel    561 Aug 23, 2017 J.Apostolakis              - field-V10-03-10
591 --------------------------                        562 --------------------------
592 - G4NystromRK4 - Fix the caching of momentum,     563 - G4NystromRK4 - Fix the caching of momentum, field location & value.
593   Fixes issue reported by ALICE ( problem repo    564   Fixes issue reported by ALICE ( problem report #1996 ).
594   Thanks to Ruben Shahoyan for identifying and    565   Thanks to Ruben Shahoyan for identifying and reporting the issue!
595 - Temporarly made G4NystromRK4 the default Ste    566 - Temporarly made G4NystromRK4 the default Stepper in G4ChordFinder's 2nd
596   constructor (to ensure adequate testing).       567   constructor (to ensure adequate testing).
597                                                   568 
598 Jul 04, 2017 J.Apostolakis             - field    569 Jul 04, 2017 J.Apostolakis             - field-V10-03-09
599 --------------------------                        570 --------------------------
600 - G4DormandPrinceRK78: initialise fLastStepLen    571 - G4DormandPrinceRK78: initialise fLastStepLength and/or fAuxStepper data
601   members in constructor. Coverity issue: 6739    572   members in constructor. Coverity issue: 67398,
602   Improved description and reference to origin    573   Improved description and reference to original 1981 DP paper.
603 - G4MagIntegratorDriver: initialised fNoCalls     574 - G4MagIntegratorDriver: initialised fNoCalls in c-tor. Coverity #15158.
604                                                   575 
605 Jul 03, 2017 J.Apostolakis             - field    576 Jul 03, 2017 J.Apostolakis             - field-V10-03-08
606 --------------------------                        577 --------------------------
607 - G4FSALBogackiShampline45: initialise 'bi[][]    578 - G4FSALBogackiShampline45: initialise 'bi[][]' const coefficients only 1 time
608   in method PrepareConstants() called by const    579   in method PrepareConstants() called by constructor.
609     ( Similar to G4BogackiShampine => seek con    580     ( Similar to G4BogackiShampine => seek consolidation )
610   Small fix: initialise fAuxStepper to nullptr    581   Small fix: initialise fAuxStepper to nullptr, if not primary.
611     ( Part of Coverity issue 67394 )              582     ( Part of Coverity issue 67394 )
612 - G4DormandPrinceRK56: fix for significant mem    583 - G4DormandPrinceRK56: fix for significant memory leak of ak10_low buffer
613   space in SetupInterpolate_low(), apparently     584   space in SetupInterpolate_low(), apparently not seen by Coverity
614   because it was initialised in each use, not     585   because it was initialised in each use, not in constructor!
615   Improved initialisation of ak10, 11, 12 (mov    586   Improved initialisation of ak10, 11, 12 (moved to constructor)
616   and fixed small memory leak (added deletion     587   and fixed small memory leak (added deletion in destructor).
617 - G4MagIntegratorStepper: initialise fNoRHSCal    588 - G4MagIntegratorStepper: initialise fNoRHSCalls & fIntegrationOrder in c-tor.
618   ( fIntegrationOrder is not yet used widely -    589   ( fIntegrationOrder is not yet used widely - future migration )
619   Coverity issue 67392.                           590   Coverity issue 67392.
620 - G4VFSALIntegrationStepper: initialise counte    591 - G4VFSALIntegrationStepper: initialise counter in c-tor. Coverity issue 67396.
621 - G4BogackiShampine23: initialised fIsFSAL, fI    592 - G4BogackiShampine23: initialised fIsFSAL, fIntegrationOrder in c-tor.
622   Suppressed obsolete virtual method isFSAL,      593   Suppressed obsolete virtual method isFSAL,
623   Deleted duplicate virtual method 'isFSAL()'.    594   Deleted duplicate virtual method 'isFSAL()'. Non-virtual method IsFSAL()
624   now exists in base class G4MagIntegratorStep    595   now exists in base class G4MagIntegratorStepper.
625   Made copy constructor and equal operator pri    596   Made copy constructor and equal operator private and not unimplemented.
626   Added explanatory comments in source file; c    597   Added explanatory comments in source file; can make this method FSAL easily
627   (it calculates derivative @ endpoint. )         598   (it calculates derivative @ endpoint. )
628 - Several steppers ( G4DoLoMcPriRK34, G4FSALBo    599 - Several steppers ( G4DoLoMcPriRK34, G4FSALBogackiShampine45,
629   G4DormandPrince745, G4BogackiShampine45 ): i    600   G4DormandPrince745, G4BogackiShampine45 ): initialise fLastStepLength and/or
630   fAuxStepper data members in constructor.        601   fAuxStepper data members in constructor.
631   Coverity issues: 67393, 67394, 67391, 67390,    602   Coverity issues: 67393, 67394, 67391, 67390, 67363
632                                                   603 
633 Jul 03, 2017 J.Apostolakis             - field    604 Jul 03, 2017 J.Apostolakis             - field-V10-03-05, -06, -07
634 --------------------------                        605 --------------------------
635 - fix for memory leak in Stepper() in two step    606 - fix for memory leak in Stepper() in two steppers:
636      G4FSALBogackiShampline45 ( Coverity issue    607      G4FSALBogackiShampline45 ( Coverity issue 67389 )
637      G4FSALDormandPrince745   ( Coverity issue    608      G4FSALDormandPrince745   ( Coverity issue 67397 )
638 - G4BogackiShampline23: fix for memory leak in    609 - G4BogackiShampline23: fix for memory leak in destructor
639     ( Coverity issue 67355 )                      610     ( Coverity issue 67355 )
640                                                   611 
641 May 17, 2017 J.Apostolakis             - field    612 May 17, 2017 J.Apostolakis             - field-V10-03-03, -04 (resubmit)
642 --------------------------                        613 --------------------------
643 - G4FieldManager::SetDetectorField                614 - G4FieldManager::SetDetectorField
644   Fixed default of 'fail mode' parameter in       615   Fixed default of 'fail mode' parameter in
645      to 0 (silent) - not 1 which was used for     616      to 0 (silent) - not 1 which was used for debugging.
646   In case of existing G4ChordFinder, use 'max'    617   In case of existing G4ChordFinder, use 'max' (1, failMode) not min.
647                                                   618 
648                                                   619 
649 May 11, 2017 J.Apostolakis             - field    620 May 11, 2017 J.Apostolakis             - field-V10-03-02
650 --------------------------                        621 --------------------------
651 - Reintroduced changes of field-V10-01-05, 06     622 - Reintroduced changes of field-V10-01-05, 06 and 07  to address
652   issue recalled by ATLAS.                        623   issue recalled by ATLAS.
653 - New fixes/refinements (since field-V10-01-07    624 - New fixes/refinements (since field-V10-01-07)
654   o Extra check for missing equation. (Fix)       625   o Extra check for missing equation. (Fix)
655   o Renamed G4FieldManager::SetFieldChangesEne    626   o Renamed G4FieldManager::SetFieldChangesEnergy() method to
656     InitialiseFieldChangesEnergy() to clarify     627     InitialiseFieldChangesEnergy() to clarify its utility.
657 - Original functionality change (copied from f    628 - Original functionality change (copied from field-V10-01-05, & -07) :
658   o G4FieldManager.cc : Revised behaviour of S    629   o G4FieldManager.cc : Revised behaviour of SetDetector - it now
659     passes the Field to the Equation, as is th    630     passes the Field to the Equation, as is the natural user expectation
660     The previous behaviour is possible, using     631     The previous behaviour is possible, using extra argument 'failMode' flag.
661             Values: 0           = silent ;        632             Values: 0           = silent ;
662                     1 (default) = warning;        633                     1 (default) = warning;
663                     2 or other  = fatal except    634                     2 or other  = fatal exception.
664                                                   635 
665     This change is to ensure that user expecta    636     This change is to ensure that user expectation is met:
666     if the field is changed for an existing, w    637     if the field is changed for an existing, working stepper it must
667     be propagated to the equation of motion.      638     be propagated to the equation of motion.
668     Note: this causes potential conflict betwe    639     Note: this causes potential conflict between the type of the equation
669           and the field, which will need to be    640           and the field, which will need to be solved in the future.
670     Old behaviour (just set our own pointer) i    641     Old behaviour (just set our own pointer) is still available in new method:
671     ProposeDetectorField(G4Field *detectorFiel    642     ProposeDetectorField(G4Field *detectorField)
672     Note: Error reporting behaviour of SetDete    643     Note: Error reporting behaviour of SetDetector is 'soft'. It does not
673           complain by default if ChordFinder i    644           complain by default if ChordFinder is not (yet) set.
674           ( The default values of failMode = 0    645           ( The default values of failMode = 0 i.e. quiet. )
675     If a chord-finder exists, it will still wa    646     If a chord-finder exists, it will still warn for other errors.
676     To obtain have noisy extra checks call Set    647     To obtain have noisy extra checks call SetDetectorField with failMode > 0
677     or by using the new method for an existing    648     or by using the new method for an existing field:
678     ChangeDetectorField(G4Field *detectorField    649     ChangeDetectorField(G4Field *detectorField)
679   OLD: Co-works and requires new tag in geomet    650   OLD: Co-works and requires new tag in geometry/navigation: geomnav-V10-01-24.
680                                                   651 
681 Mar  22, 2017 G.Cosmo                   - fiel    652 Mar  22, 2017 G.Cosmo                   - field-V10-03-01
682 ---------------------                             653 ---------------------
683 - Revert change made in previous tag and add s    654 - Revert change made in previous tag and add simple accessor to return
684   singleton pointer.                              655   singleton pointer.
685                                                   656 
686 Mar  17, 2017 G.Cosmo                   - fiel    657 Mar  17, 2017 G.Cosmo                   - field-V10-03-00
687 ---------------------                             658 ---------------------
688 - Define G4FieldManagerStore as normal singlet    659 - Define G4FieldManagerStore as normal singleton and corrected destructor.
689                                                   660 
690 Oct   7, 2016 J.Apostolakis             - fiel    661 Oct   7, 2016 J.Apostolakis             - field-V10-02-24, 25
691 ---------------------------                       662 ---------------------------
692 - Checked loops for termination for infinite l    663 - Checked loops for termination for infinite loops and annotated
693    them with "Loop checking" comment              664    them with "Loop checking" comment
694                                                   665 
695 Oct   7, 2016 D.Sorokin                 - fiel    666 Oct   7, 2016 D.Sorokin                 - field-V10-02-23
696 -----------------------  Commit: J. Apostolaki    667 -----------------------  Commit: J. Apostolakis
697 - Protection for multiple inclusion of G4Class    668 - Protection for multiple inclusion of G4ClassicalRK4
698    (thanks to Dmitrii Sorokin, GSoC 2016 stude    669    (thanks to Dmitrii Sorokin, GSoC 2016 student. )
699                                                   670 
700 Aug  16, 2016 J.Apostolakis             - fiel    671 Aug  16, 2016 J.Apostolakis             - field-V10-02-22
701 ---------------------------                       672 ---------------------------
702 - Added initialization of fAuxStepper in const    673 - Added initialization of fAuxStepper in constructor of
703   G4DoLoMcPriRK34, G4DormandPrince745 & G4Dorm    674   G4DoLoMcPriRK34, G4DormandPrince745 & G4DormandPrinceRK56.
704                                                   675 
705 June 11, 2016 J.Apostolakis             - fiel    676 June 11, 2016 J.Apostolakis             - field-V10-02-21
706 ---------------------------                       677 ---------------------------
707 - Restored G4ClassicalRK4 as default stepper f    678 - Restored G4ClassicalRK4 as default stepper for B-field,
708   (due to performance issues reported in bench    679   (due to performance issues reported in benchmarking.)
709                                                   680 
710 June 10, 2016 G.Cosmo                   - fiel    681 June 10, 2016 G.Cosmo                   - field-V10-02-20
711 ---------------------                             682 ---------------------
712 - Fixed code indentation in G4HelixMixedSteppe    683 - Fixed code indentation in G4HelixMixedStepper;
713   fixes compilation warnings on gcc-6.1.          684   fixes compilation warnings on gcc-6.1.
714                                                   685 
715 June 1, 2016 J.Apostolakis              - fiel    686 June 1, 2016 J.Apostolakis              - field-V10-02-19, 18, 17
716 --------------------------                        687 --------------------------
717 - Fix in multiple steppers for the size of two    688 - Fix in multiple steppers for the size of two C-arrays which hold
718   intermediate values;  they must be at least     689   intermediate values;  they must be at least 8 and at least
719   'fNumberOfStateVariables' long.                 690   'fNumberOfStateVariables' long.
720   Changed: G4CashKarp,                            691   Changed: G4CashKarp,
721            G4BogackiShampine 23 & 34              692            G4BogackiShampine 23 & 34
722            G4DormandPrince 745, RK56 & RK78       693            G4DormandPrince 745, RK56 & RK78
723      G4DoLoMcPriRK34                              694      G4DoLoMcPriRK34
724            G4FSALBogackiShampine45, G4FSALDorm    695            G4FSALBogackiShampine45, G4FSALDormandPrince745
725 - Made G4CashKarp the default stepper in G4Cho    696 - Made G4CashKarp the default stepper in G4ChordFinder.
726 - Deleted trial class G4NewChordFinder.           697 - Deleted trial class G4NewChordFinder.
727                                                   698 
728 June 1, 2016 J.Apostolakis              - fiel    699 June 1, 2016 J.Apostolakis              - field-V10-02-16
729 --------------------------                        700 --------------------------
730 - Deleted test code (RkTestRun) due to cmake i    701 - Deleted test code (RkTestRun) due to cmake issues
731                                                   702 
732 June 1, 2016 J.Apostolakis              - fiel    703 June 1, 2016 J.Apostolakis              - field-V10-02-15 (also -14)
733 --------------------------                        704 --------------------------
734 - Made G4ClassicalRK4 the default stepper agai    705 - Made G4ClassicalRK4 the default stepper again in G4ChordFinder
735 - Fixes in test code (RkTestRun) for new names    706 - Fixes in test code (RkTestRun) for new names of classes.
736                                                   707 
737 May 31, 2016 J.Apostolakis              - fiel    708 May 31, 2016 J.Apostolakis              - field-V10-02-13 (also -12)
738 --------------------------                        709 --------------------------
739 - New class G4NewChordFinder, that uses old G4    710 - New class G4NewChordFinder, that uses old G4MagIntegratorDriver or
740     the newer G4FSALIntegratorDriver -- first     711     the newer G4FSALIntegratorDriver -- first try, for testing FSAL.
741   Created new test testNewChordFinder.cc to ch    712   Created new test testNewChordFinder.cc to checks this.
742                                                   713 
743 - Renamed new Stepper classes to use 'G4' pref    714 - Renamed new Stepper classes to use 'G4' prefix, including
744     DormandPrince{745,RK56,RK67} TsitourasRK45    715     DormandPrince{745,RK56,RK67} TsitourasRK45 and DoLoMcPriRK34
745                                                   716 
746 - Renamed FSAL base classes to use 'G4' prefix    717 - Renamed FSAL base classes to use 'G4' prefix & 'Integrat-ion'
747      FSALMagIntegratorStepper to G4VFSALIntegr    718      FSALMagIntegratorStepper to G4VFSALIntegrationStepper
748      FSALIntegratorDriver     to  G4FSALIntegr    719      FSALIntegratorDriver     to  G4FSALIntegrationDriver
749   and the experimental FSAL versions of steppe    720   and the experimental FSAL versions of steppers,
750      FBogackiShampine45.hh  to  G4FSALBogackiS    721      FBogackiShampine45.hh  to  G4FSALBogackiShampine45.hh
751      FDormandPrince745.hh   to  G4FSALDormandP    722      FDormandPrince745.hh   to  G4FSALDormandPrince745.hh
752 ( Note: FSAL steppers remain 'behind' the impr    723 ( Note: FSAL steppers remain 'behind' the improved non-FSAL versions.)
753                                                   724 
754 - Made DormandPrince745 (DP45) the default ste    725 - Made DormandPrince745 (DP45) the default stepper (in G4ChordFinder).
755                                                   726 
756 May 26, 2016 J.Apostolakis & Som. Banerjee   -    727 May 26, 2016 J.Apostolakis & Som. Banerjee   - field-V10-02-11
757 ------------------------------------------        728 ------------------------------------------
758 - First version of FSAL classes (as additional    729 - First version of FSAL classes (as additional classes)
759     FSAL Integrator Driver  : New *concrete*,     730     FSAL Integrator Driver  : New *concrete*, stand-alone driver
760     FSAL Integrator Stepper : New base class (    731     FSAL Integrator Stepper : New base class (separate from G4MagIntegratorStepper)
761     FBogackiShampine45:  FSAL-version of Bogac    732     FBogackiShampine45:  FSAL-version of BogackiShampine45 stepper
762     FDormandPrince745:   FSAL-version of FDorm    733     FDormandPrince745:   FSAL-version of FDormandPrince745 stepper
763   Developed by Somnath Banerjee in GSoC 2015      734   Developed by Somnath Banerjee in GSoC 2015
764                                                   735 
765 Context:                                          736 Context:
766 * FSAL Stepper's key 'Stepper()' method for St    737 * FSAL Stepper's key 'Stepper()' method for Stepping has additional
767     argument to return the derivative at the e    738     argument to return the derivative at the end of a step.
768     If the step was successful, this estimate     739     If the step was successful, this estimate has the same order of
769     accuracy as the stepper (i.e. 5th order fo    740     accuracy as the stepper (i.e. 5th order for a 5th order stepper.)
770                                                   741 
771 - FSAL Driver method uses the revised Stepper     742 - FSAL Driver method uses the revised Stepper interface, using
772     the final (endpoint) derivative for succes    743     the final (endpoint) derivative for successful steps
773     as the start derivative for the next step,    744     as the start derivative for the next step, in case of
774     continuing of integration.                    745     continuing of integration.
775                                                   746 
776 - New test (RkTestRun.cc) covering FSAL method    747 - New test (RkTestRun.cc) covering FSAL methods, integration
777    Developed by Somnath Banerjee in GSoC 2015     748    Developed by Somnath Banerjee in GSoC 2015
778                                                   749 
779 May 26, 2016 J.Apostolakis                   -    750 May 26, 2016 J.Apostolakis                   - field-V10-02-10
780 --------------------------                        751 --------------------------
781 Preparation for addition of FSAL steppers (& d    752 Preparation for addition of FSAL steppers (& driver)
782 - G4MagIntegratorStepper: Added counter for ca    753 - G4MagIntegratorStepper: Added counter for calls to equation RHS,
783     with Get/Reset methods.                       754     with Get/Reset methods.
784 - Cosmetic fixes in sources.cmake (tabs to spa    755 - Cosmetic fixes in sources.cmake (tabs to spaces)
785                                                   756 
786 May 25, 2016 J.Apostolakis & Som. Banerjee   -    757 May 25, 2016 J.Apostolakis & Som. Banerjee   - field-V10-02-09
787 ------------------------------------------        758 ------------------------------------------
788 - Added new stepper classes embedded RK method    759 - Added new stepper classes embedded RK method:
789   * DoLoMcPriRK34,      6-stage 3/4 RK (interp    760   * DoLoMcPriRK34,      6-stage 3/4 RK (interpolation)
790   * DormandPrinceRK56,  9-stage 5/6 RK (interp    761   * DormandPrinceRK56,  9-stage 5/6 RK (interpolation, FSAL-able) "6(5)"
791   * DormandPrinceRK78, 13-stage 7/8 RK (interp    762   * DormandPrinceRK78, 13-stage 7/8 RK (interpolation)        "8(7) 13M"
792   created by Somnath Banerjee as part of GSoC     763   created by Somnath Banerjee as part of GSoC 2015.
793                                                   764 
794 May 25, 2016 J.Apostolakis             - field    765 May 25, 2016 J.Apostolakis             - field-V10-02-08
795 --------------------------                        766 --------------------------
796 - Revised testPropagateMagField, to reduce err    767 - Revised testPropagateMagField, to reduce error severity for over-long
797     steps.  An error message is still written     768     steps.  An error message is still written if move > (1.+1.0e-9) * step,
798     but test does not stop.                       769     but test does not stop.
799                                                   770 
800 - G4HelixMixedStepper: Fixes & added new (5th     771 - G4HelixMixedStepper: Fixes & added new (5th order) stepper choices.
801     Included (G4)Bogacki-Shampine 23/45 ,  Dor    772     Included (G4)Bogacki-Shampine 23/45 ,  DormandPrince745,
802     and newest TsitourasRK45.                     773     and newest TsitourasRK45.
803                                                   774 
804 May 24, 2016 J.Apostolakis             - field    775 May 24, 2016 J.Apostolakis             - field-V10-02-06, 07
805 --------------------------                        776 --------------------------
806 - Added TsitourasRK45 stepper.                    777 - Added TsitourasRK45 stepper.
807 - Made Cash-Karp the default stepper (in G4Cho    778 - Made Cash-Karp the default stepper (in G4ChordFinder).
808                                                   779 
809 May 23, 2016 J.Apostolakis             - field    780 May 23, 2016 J.Apostolakis             - field-V10-02-05
810 --------------------------                        781 --------------------------
811 - Made DormandPrince745 (DP45) the default ste    782 - Made DormandPrince745 (DP45) the default stepper (in G4ChordFinder).
812                                                   783 
813 May 20, 2016 J.Apostolakis             - field    784 May 20, 2016 J.Apostolakis             - field-V10-02-04
814 -------------------------                         785 -------------------------
815 - Added steppers created by Somnath Banerjee a    786 - Added steppers created by Somnath Banerjee as part of GSoC 2015,
816     G4BogackiShampine23 (BS23 below), G4Bogack    787     G4BogackiShampine23 (BS23 below), G4BogackiShampine45 (BS45) and
817     DormandPrince745 (DP45).                      788     DormandPrince745 (DP45).
818   These implement third order (BS23) and fifth    789   These implement third order (BS23) and fifth order (BS45, DP45)
819     embedded RK tableaus.                         790     embedded RK tableaus.
820 - DP45 includes interpolation method, to evalu    791 - DP45 includes interpolation method, to evaluate the interpolant
821     ('y') at intermediate points of a successf    792     ('y') at intermediate points of a successful step.
822   BS45's interpolation method exists, but is n    793   BS45's interpolation method exists, but is not validated (fails).
823                                                   794 
824  References:                                      795  References:
825   - BS45 is embedded pair from paper by P. Bog    796   - BS45 is embedded pair from paper by P. Bogacki and L. F. Shampine:
826       “An efficient Runge-Kutta (4,5) pair,    797       “An efficient Runge-Kutta (4,5) pair,”
827       Comput. Math. with Appl., vol. 32, no. 6    798       Comput. Math. with Appl., vol. 32, no. 6, pp. 15–28, Sep. 1996.
828   - BS23 is four stage RK method from the pape    799   - BS23 is four stage RK method from the paper of P. Bogacki and L. F. Shampine,
829       “A 3(2) pair of Runge - Kutta formulas    800       “A 3(2) pair of Runge - Kutta formulas,”
830       Appl. Math. Lett., vol 2, no 4, p.321 (1    801       Appl. Math. Lett., vol 2, no 4, p.321 (1989).
831   - DP45 are from Table 2 of  J. R. Dormand an    802   - DP45 are from Table 2 of  J. R. Dormand and P. J. Prince's
832       “A family of embedded Runge-Kutta form    803       “A family of embedded Runge-Kutta formulae,”
833       Journal of comput. and applied Math., vo    804       Journal of comput. and applied Math., vol. 6, no. 1, pp. 19–26, 1980.
834                                                   805 
835 May 4, 2016 G.Cosmo                   - field-    806 May 4, 2016 G.Cosmo                   - field-V10-02-03
836 -------------------                               807 -------------------
837 - Fixed Clone() signatures in derived Field cl    808 - Fixed Clone() signatures in derived Field classes.
838   More corrections on implementations of opera    809   More corrections on implementations of operator=() and copy-ctors.
839                                                   810 
840 Apr 29, 2016 G.Cosmo                  - field-    811 Apr 29, 2016 G.Cosmo                  - field-V10-02-02
841 --------------------                              812 --------------------
842 - Corrected implementation of operator=() and     813 - Corrected implementation of operator=() and copy-ctor for G4Field,
843   G4ElectroMagneticField, G4ElectricField and     814   G4ElectroMagneticField, G4ElectricField and G4CachedMagneticField.
844                                                   815 
845 Feb 25, 2016 P.Gumplinger             - field-    816 Feb 25, 2016 P.Gumplinger             - field-V10-02-01
846 -------------------------                         817 -------------------------
847 - address Problem Report: 1831                    818 - address Problem Report: 1831
848   change: G4Mag_SpinEqRhs, G4EqEMFieldWithSpin    819   change: G4Mag_SpinEqRhs, G4EqEMFieldWithSpin, G4EqEMFieldWithEDM and
849           G4RepleteEofM.cc from g_BMT = (magMo    820           G4RepleteEofM.cc from g_BMT = (magMoment/muB)/spin
850                            to   g_BMT = (std::    821                            to   g_BMT = (std::abs(magMoment)/muB)/spin
851                                                   822 
852                                                   823 
853 Dec 11, 2015 A.Dotti          - field-V10-02-0    824 Dec 11, 2015 A.Dotti          - field-V10-02-00
854 --------------------------                        825 --------------------------
855 Fixing typo in tests/CMakeList.txt file: subdi    826 Fixing typo in tests/CMakeList.txt file: subdirecotry()
856 instead of add_subdirectory()                     827 instead of add_subdirectory()
857                                                   828 
858 Nov  2, 2015 J.Apostolakis             - field    829 Nov  2, 2015 J.Apostolakis             - field-V10-01-15 (fixed)
859 Oct 22, 2015 J.Apostolakis             - field    830 Oct 22, 2015 J.Apostolakis             - field-V10-01-14
860 --------------------------                        831 --------------------------
861 - Reverted changes in G4FieldManager from  tag    832 - Reverted changes in G4FieldManager from  tags field-V10-01-05 to -07
862    inadvertently reintroduced in tag field-V10    833    inadvertently reintroduced in tag field-V10-01-13
863     (fixed in tag -15: committed new copy from    834     (fixed in tag -15: committed new copy from tag -04 'on top')
864                                                   835 
865 - Added explanation comment in G4MagHelicalSte    836 - Added explanation comment in G4MagHelicalSteper.
866                                                   837 
867 Oct 13, 2015 J.Apostolakis             - field    838 Oct 13, 2015 J.Apostolakis             - field-V10-01-13
868 --------------------------                        839 --------------------------
869 - G4ChordFinder::FindNextChord: Added check ag    840 - G4ChordFinder::FindNextChord: Added check against number of iterations,
870   to identify potential issue of lack of conve    841   to identify potential issue of lack of convergence.
871 - test: fixed testProElectricMagField.cc          842 - test: fixed testProElectricMagField.cc
872                                                   843 
873 - Note: tag-13 inadvertently reintroduced chan    844 - Note: tag-13 inadvertently reintroduced changes from tags field-V10-01-05 to -07
874                                                   845 
875 Jun 26, 2015 P.Gumplinger              - field    846 Jun 26, 2015 P.Gumplinger              - field-V10-01-12, 11
876 -------------------------                         847 -------------------------
877 - Include 'NumberOfVariables' in G4RepleteEofM    848 - Include 'NumberOfVariables' in G4RepleteEofM constructor argument list.
878                                                   849 
879 Jun 22, 2015 G.Cosmo                   - field    850 Jun 22, 2015 G.Cosmo                   - field-V10-01-10
880 --------------------                              851 --------------------
881 - Withdrawn also changes introduced in tag "fi    852 - Withdrawn also changes introduced in tag "field-V10-01-08", as
882   responsible for memory violation errors in V    853   responsible for memory violation errors in Valgrind.
883   Now corresponding to tag "field-V10-01-04".     854   Now corresponding to tag "field-V10-01-04".
884                                                   855 
885 Jun 18, 2015 G.Cosmo                   - field    856 Jun 18, 2015 G.Cosmo                   - field-V10-01-09
886 --------------------                              857 --------------------
887 - Withdrawn changes introduced from tag "field    858 - Withdrawn changes introduced from tag "field-V10-01-05" to tag
888   "field-V10-01-07" included, responsible for     859   "field-V10-01-07" included, responsible for failures on SLC6 and
889   run-time errors on Valgrind checks.             860   run-time errors on Valgrind checks.
890                                                   861 
891 Jun 10, 2015 P.Gumplinger              - field    862 Jun 10, 2015 P.Gumplinger              - field-V10-01-08
892 -------------------------                         863 -------------------------
893 - initialize all elements of dydx[] in G4Reple    864 - initialize all elements of dydx[] in G4RepleteEofM::EvaluateRhsGivenB
894   Thanks to Tatsuya Kikawa (Osaka Univ.)          865   Thanks to Tatsuya Kikawa (Osaka Univ.)
895                                                   866 
896 Jun 10, 2015 J.Apostolakis             - field    867 Jun 10, 2015 J.Apostolakis             - field-V10-01-07
897 --------------------------                        868 --------------------------
898 - G4FieldManager.cc : Made behaviour of SetDet    869 - G4FieldManager.cc : Made behaviour of SetDetector 'softer'.  No
899    longer complains by default if ChordFinder     870    longer complains by default if ChordFinder is not (yet) set.
900     ( The default values of failMode = 0 i.e.     871     ( The default values of failMode = 0 i.e. quiet. )
901    If a chord-finder exists, it will still war    872    If a chord-finder exists, it will still warn for other errors.
902                                                   873 
903    It is still possible to have louder/extra c    874    It is still possible to have louder/extra checks done calling
904      SetDetectorField with failMode > 0           875      SetDetectorField with failMode > 0
905    or by using a new method, which expects an     876    or by using a new method, which expects an existing field:
906      ChangeDetectorField(G4Field *detectorFiel    877      ChangeDetectorField(G4Field *detectorField)
907                                                   878 
908 Jun  8, 2015 J.Apostolakis             - field    879 Jun  8, 2015 J.Apostolakis             - field-V10-01-05, (-06 fixed)
909 --------------------------                        880 --------------------------
910 - G4FieldManager.cc : Revised behaviour of Set    881 - G4FieldManager.cc : Revised behaviour of SetDetector - it now
911    passes the Field to the Equation, as is the    882    passes the Field to the Equation, as is the natural user expectation
912    The previous behaviour is possible, using e    883    The previous behaviour is possible, using extra argument 'failMode'
913       flag. Values: 0           = silent ;        884       flag. Values: 0           = silent ;
914                     1 (default) = warning;        885                     1 (default) = warning;
915                     2 or other  = fatal except    886                     2 or other  = fatal exception.
916    Or can use alternative (new) suggestion met    887    Or can use alternative (new) suggestion method ProposeDetectorField();
917                                                   888 
918    This change is to ensure that user expectat    889    This change is to ensure that user expectation is met:
919       if the field is changed for an existing,    890       if the field is changed for an existing, working stepper it must
920       be propagated to the equation of motion.    891       be propagated to the equation of motion.
921    Note: this causes potential conflict betwee    892    Note: this causes potential conflict between the type of the equation
922          and the field, which will need to be     893          and the field, which will need to be solved in the future.
923                                                   894 
924    Old behaviour (just set our own pointer) is    895    Old behaviour (just set our own pointer) is still available in new method:
925      ProposeDetectorField(G4Field *detectorFie    896      ProposeDetectorField(G4Field *detectorField)
926                                                   897 
927    Co-works and requires new tag in geometry/n    898    Co-works and requires new tag in geometry/navigation: geomnav-V10-01-24.
928                                                   899 
929 Jun 4, 2015 P. Gumplinger              - field    900 Jun 4, 2015 P. Gumplinger              - field-V10-01-04
930 -------------------------                         901 -------------------------
931 - change assignment to field instead of Field     902 - change assignment to field instead of Field array in G4RepleteEofM.cc
932                                                   903 
933 Jan 28, 2015 J.Apostolakis             - field    904 Jan 28, 2015 J.Apostolakis             - field-V10-01-01 (-02,03 fixed)
934 --------------------------                        905 --------------------------                               ( History    )
935 - Revert unintended inclusion of changes in G4    906 - Revert unintended inclusion of changes in G4MagIntegratorDriver
936                                                   907 
937 Jan 15, 2015 J.Apostolakis             - field    908 Jan 15, 2015 J.Apostolakis             - field-V10-01-00
938 --------------------------                        909 --------------------------
939 - Small refinements in G4FieldTrack - access r    910 - Small refinements in G4FieldTrack - access rest mass, avoid div by 0
940     Avoid division by zero for Unit direction     911     Avoid division by zero for Unit direction in FieldTrack
941     Added method to get Rest Mass.                912     Added method to get Rest Mass.
942   Needed for fixes related to Problem report 1    913   Needed for fixes related to Problem report 1696.
943   Thanks to Nathan S. Froemming <nfroemm@uw.ed    914   Thanks to Nathan S. Froemming <nfroemm@uw.edu> who reported the issue
944    and created dedicated test to demonstrate i    915    and created dedicated test to demonstrate it.
945                                                   916 
946 Nov 03, 2014 G.Cosmo                   - field    917 Nov 03, 2014 G.Cosmo                   - field-V10-00-04
947 --------------------                              918 --------------------
948 - Moved constructors and simple methods to in     919 - Moved constructors and simple methods to in line in G4ChargeState and
949   G4LineSection for CPU speedup (courtesy of S    920   G4LineSection for CPU speedup (courtesy of S.Wenzel).
950                                                   921 
951 May 21, 2014 J.Apostolakis             - field    922 May 21, 2014 J.Apostolakis             - field-V10-00-03
952 --------------------------                        923 --------------------------
953 - G4FieldTrack:                                   924 - G4FieldTrack:
954   * Fixed SetChargeAndMoments() to use the new    925   * Fixed SetChargeAndMoments() to use the new method
955     G4ChargeState::SetChargesAndMoments(); it     926     G4ChargeState::SetChargesAndMoments(); it was changing spin, because of
956     erroneous change in G4ChargeState::SetChar    927     erroneous change in G4ChargeState::SetChargesAndMoments(), that method
957     is now renamed SetChargeSpinMoments() to s    928     is now renamed SetChargeSpinMoments() to show what it does;
958   * Added pdg-spin as argument to constructors    929   * Added pdg-spin as argument to constructors (needed to track polarization);
959   * Renamed 'spin' to 'Polarization' in method    930   * Renamed 'spin' to 'Polarization' in method, arguments, data member to
960     avoid confusion;                              931     avoid confusion;
961   * Revised constructors to add pdg-spin as la    932   * Revised constructors to add pdg-spin as last argument (with default -1).
962 - G4ChargeState:                                  933 - G4ChargeState:
963   - Addressed Coverity issue #56281 'Arguments    934   - Addressed Coverity issue #56281 'Arguments in wrong order'
964     G4ChargeState::SetChargeMoments() when use    935     G4ChargeState::SetChargeMoments() when used in
965     G4FieldTrack::SetChargeMoments() from addi    936     G4FieldTrack::SetChargeMoments() from addition of spin to arguments,
966     without revising name of method to reflect    937     without revising name of method to reflect it;
967   - Changed order of arguments in constructor,    938   - Changed order of arguments in constructor, making spin 3rd argument
968     (was 2nd) and making all arguments mandato    939     (was 2nd) and making all arguments mandatory;
969   - Renamed SetChargeAndMoments() method with     940   - Renamed SetChargeAndMoments() method with 5 arguments including spin (2nd)
970     to SetChargeSpinMoments();                    941     to SetChargeSpinMoments();
971   - Added new methods including SetChargesAndM    942   - Added new methods including SetChargesAndMoments(), SetChargeMdm(),
972     SetChargeDipoleMoments() (no spin), and al    943     SetChargeDipoleMoments() (no spin), and also SetChargeSpin(),
973     SetChargeMdmSpin() (which includes spin) t    944     SetChargeMdmSpin() (which includes spin) to provide most/all potential
974     combinations.                                 945     combinations.
975 - G4MagIntegratorDriver::OneGoodStep():           946 - G4MagIntegratorDriver::OneGoodStep():
976   * Trial changes to address Valgrind issue, a    947   * Trial changes to address Valgrind issue, about value used before being set.
977                                                   948 
978 Apr 01, 2014 J.Apostolakis                - fi    949 Apr 01, 2014 J.Apostolakis                - field-V10-00-02
979 --------------------------                        950 --------------------------
980 - Moved G4FieldTrack::LoadFromArray() to .cc a    951 - Moved G4FieldTrack::LoadFromArray() to .cc and removed non-necessary
981   thread-local static data local to the functi    952   thread-local static data local to the function.
982                                                   953 
983 Mar 14, 2014 J.Apostolakis                - fi    954 Mar 14, 2014 J.Apostolakis                - field-V10-00-01
984 --------------------------                        955 --------------------------
985 - Fix assignment operator for G4FieldTrack. (C    956 - Fix assignment operator for G4FieldTrack. (Copied Rest Mass)
986 - Improve printing of G4FieldTrack                957 - Improve printing of G4FieldTrack
987                                                   958 
988 Jan 17, 2014 P.Gumplinger                 - fi    959 Jan 17, 2014 P.Gumplinger                 - field-V10-00-00
989 -------------------------                         960 -------------------------
990 - add G4Mag_EqRhs::SetChargeMomentumMass( part    961 - add G4Mag_EqRhs::SetChargeMomentumMass( particleCharge, MomentumXc, mass)
991   to G4Mag_SpinEqRhs::SetChargeMomentumMass, s    962   to G4Mag_SpinEqRhs::SetChargeMomentumMass, see bug reported at:
992   http://hypernews.slac.stanford.edu/HyperNews    963   http://hypernews.slac.stanford.edu/HyperNews/geant4/get/emfields/210.html
993                                                   964 
994 Nov 18, 2013 P.Gumplinger                 - fi    965 Nov 18, 2013 P.Gumplinger                 - field-V09-06-13/12
995 -------------------------                         966 -------------------------
996 - fix Coverity warning in G4RepleteEofM           967 - fix Coverity warning in G4RepleteEofM
997                                                   968 
998 Nov 17, 2013 J.Apostolakis                        969 Nov 17, 2013 J.Apostolakis
999 --------------------------                        970 --------------------------
1000 - Fixed and improved HelixMixed Stepper:         971 - Fixed and improved HelixMixed Stepper:
1001     Corrected the default stepper for small s    972     Corrected the default stepper for small steps to be ClassicalRK4.
1002     Added Angle-threshold parameter. (Default    973     Added Angle-threshold parameter. (Default remains 0.33 radians.)
1003     Added more Steppers, including G4NystromR    974     Added more Steppers, including G4NystromRK4.
1004     Revised Id numbers of Steppers, to make t    975     Revised Id numbers of Steppers, to make the best more visible.
1005     More comments in Stepper().                  976     More comments in Stepper().
1006                                                  977 
1007 Nov 05, 2013 P.Gumplinger                 - f    978 Nov 05, 2013 P.Gumplinger                 - field-V09-06-11
1008 -------------------------                        979 -------------------------
1009 - remove writing out-of-bounds dydx[8] = 0. i    980 - remove writing out-of-bounds dydx[8] = 0. in G4RepleteEofM.cc
1010                                                  981 
1011 Nov 04, 2013 P.Gumplinger                 - f    982 Nov 04, 2013 P.Gumplinger                 - field-V09-06-10
1012 -------------------------                        983 -------------------------
1013 - add G4RepleteEofM to sources.cmake             984 - add G4RepleteEofM to sources.cmake
1014                                             f    985                                             field-V09-06-09 - same as
1015 Nov 01st, 2013 P.Gumplinger               - f    986 Nov 01st, 2013 P.Gumplinger               - field-V09-06-08
1016 ---------------------------                      987 ---------------------------
1017 - add G4RepleteEofM: EofM that includes force    988 - add G4RepleteEofM: EofM that includes force due to B, E, and gravity field
1018   as well as mu*grad(B) and spin tracking.       989   as well as mu*grad(B) and spin tracking.
1019                                                  990 
1020 May 10th, 2013 P.Gumplinger/J.Apostolakis - f    991 May 10th, 2013 P.Gumplinger/J.Apostolakis - field-V09-06-07
1021 -----------------------------------------        992 -----------------------------------------
1022 - Revised number of field components (to allo    993 - Revised number of field components (to allow up to 24).
1023    18 are required for new applications (B, E    994    18 are required for new applications (B, E, Gravity, B-gradients)
1024 - Fixes for initialisation errors found by Co    995 - Fixes for initialisation errors found by Coverity.
1025                                                  996 
1026 May 10th, 2013 P.Gumplinger - field-V09-06-06    997 May 10th, 2013 P.Gumplinger - field-V09-06-06
1027 ---------------------------                      998 ---------------------------
1028 - prevent divided by zero and shortcut spin t    999 - prevent divided by zero and shortcut spin tracking for spin == 0
1029   particles: G4Mag_SpinEqRhs.cc, G4EqEMFieldW    1000   particles: G4Mag_SpinEqRhs.cc, G4EqEMFieldWithSpin.cc and
1030   G4EqEMFieldWithEDM.cc                          1001   G4EqEMFieldWithEDM.cc
1031                                             f    1002                                             field-V09-06-05 - same
1032 May 8th,  2013 P.Gumplinger/J.Apostolakis - f    1003 May 8th,  2013 P.Gumplinger/J.Apostolakis - field-V09-06-04
1033 -----------------------------------------        1004 -----------------------------------------
1034 - Introduced new class G4ChargeState to hold     1005 - Introduced new class G4ChargeState to hold charge, spin, magnetic moment
1035      (promoted from internal class of G4Field    1006      (promoted from internal class of G4FieldTrack).
1036 - Changed the signature of EquationOfMotion::    1007 - Changed the signature of EquationOfMotion::SetChargeMomentumMass to
1037  take G4ChargeState in place of G4double (cha    1008  take G4ChargeState in place of G4double (charge) as first argument.
1038 - Deleted SetChargeMomentumMass from G4ChordF    1009 - Deleted SetChargeMomentumMass from G4ChordFinder, G4PropagatorInField,
1039    G4MagInt_Driver                               1010    G4MagInt_Driver
1040                                                  1011 
1041 - Migrated testPropagateMagField and testProp    1012 - Migrated testPropagateMagField and testPropagateSpin.
1042                                                  1013 
1043 March 19th, 2013 G.Cosmo - field-V09-06-03, f    1014 March 19th, 2013 G.Cosmo - field-V09-06-03, field-V09-06-02
1044 -------------------------                        1015 -------------------------
1045 - Cleanup of MT changes in G4FieldManagerStor    1016 - Cleanup of MT changes in G4FieldManagerStore.
1046                                                  1017 
1047 February 26th, 2013 A.Dotti - field-V09-06-01    1018 February 26th, 2013 A.Dotti - field-V09-06-01
1048 ---------------------------                      1019 ---------------------------
1049 - First implementation of Cloning mechanism (    1020 - First implementation of Cloning mechanism (needed for MT)
1050                                                  1021 
1051 February 22nd, 2013 G.Cosmo - field-V09-06-00    1022 February 22nd, 2013 G.Cosmo - field-V09-06-00
1052 ---------------------------                      1023 ---------------------------
1053 - Cleanup of unnecessary changes for multi-th    1024 - Cleanup of unnecessary changes for multi-threading in G4QuadrupoleMagField.
1054 - Removed unused private data-members in G4Ma    1025 - Removed unused private data-members in G4Mag_UsualEqRhs and G4RKG3_Stepper.
1055                                                  1026 
1056 November 14th, 2012 P.Mato - field-V09-05-07     1027 November 14th, 2012 P.Mato - field-V09-05-07
1057 --------------------------                       1028 --------------------------
1058 - G4QuadrupoleMagField: allow displaced origi    1029 - G4QuadrupoleMagField: allow displaced origin and rotation (Björn Riese)
1059 - Added G4SystemOfUnits.hh in unit tests         1030 - Added G4SystemOfUnits.hh in unit tests
1060                                                  1031 
1061 August 30th, 2012 P.Mato - field-V09-05-06       1032 August 30th, 2012 P.Mato - field-V09-05-06
1062 ------------------------                         1033 ------------------------
1063 - Adapted CMakeLists.txt files to new unit te    1034 - Adapted CMakeLists.txt files to new unit tests
1064                                                  1035 
1065 June 11th, 2012 G.Cosmo - field-V09-05-05        1036 June 11th, 2012 G.Cosmo - field-V09-05-05
1066 -----------------------                          1037 -----------------------
1067 - Explicitly use inclusion of headers for sys    1038 - Explicitly use inclusion of headers for system of units and physical
1068   constants, in plan to remove implicit inclu    1039   constants, in plan to remove implicit inclusion from globals.hh.
1069                                                  1040 
1070 May 14th, 2012 G.Cosmo - field-V09-05-04         1041 May 14th, 2012 G.Cosmo - field-V09-05-04
1071 ----------------------                           1042 ----------------------
1072 - Fixed spurious case of hidden variable visi    1043 - Fixed spurious case of hidden variable visibility in G4NystromRK4,
1073   detected with '-Wshadow' compilation option    1044   detected with '-Wshadow' compilation option on gcc compiler.
1074                                                  1045 
1075 February 3rd,  2012 J.Apostolakis - field-V09    1046 February 3rd,  2012 J.Apostolakis - field-V09-05-03
1076 ---------------------------------                1047 ---------------------------------
1077 - G4FieldTrack:                                  1048 - G4FieldTrack:
1078     Added new (inline) method to set the Rest    1049     Added new (inline) method to set the Rest Mass. Needed in order to
1079        reset this - and keep reuse the same G    1050        reset this - and keep reuse the same G4FieldTrack in a client
1080        (across tracks.)                          1051        (across tracks.)
1081     Made SetCurvePnt() method private.           1052     Made SetCurvePnt() method private.
1082     Simplified implementation of constructors    1053     Simplified implementation of constructors.  Gain of 1 square root and
1083        1 division per call.                      1054        1 division per call.
1084                                                  1055 
1085 February  3rd,  2012 G.Cosmo - field-V09-05-0    1056 February  3rd,  2012 G.Cosmo - field-V09-05-02
1086 ----------------------------                     1057 ----------------------------
1087 - Removed tests in CMakeLists.txt causing cat    1058 - Removed tests in CMakeLists.txt causing catastrophic failure in system
1088   testing!                                       1059   testing!
1089                                                  1060 
1090 February  2nd,  2012 J.Apostolakis - field-V0    1061 February  2nd,  2012 J.Apostolakis - field-V09-05-01
1091 ----------------------------------               1062 ----------------------------------
1092 - G4Mag_UsualEqRhs: in SetChargeMomentumMass(    1063 - G4Mag_UsualEqRhs: in SetChargeMomentumMass() method, fixed problem with
1093   division by zero; stopped updating 'fInvCur    1064   division by zero; stopped updating 'fInvCurrentMomentumXc' (data member
1094   is obsolete).                                  1065   is obsolete).
1095 - Added tests in CMakeLists.txt                  1066 - Added tests in CMakeLists.txt
1096                                                  1067 
1097 December 13th,  2011 G.Cosmo - field-V09-05-0    1068 December 13th,  2011 G.Cosmo - field-V09-05-00
1098 ----------------------------                     1069 ----------------------------
1099 - Fixed Coverity defects in G4SimpleRunge (re    1070 - Fixed Coverity defects in G4SimpleRunge (removed spurious pointer
1100   data member) and G4FieldTrack (missing G4Ch    1071   data member) and G4FieldTrack (missing G4ChargeState::operator=()).
1101 - Synchronised unit tests to trunk (new test     1072 - Synchronised unit tests to trunk (new test field07 and minor updates).
1102                                                  1073 
1103 November 11th,  2011 J.Apostolakis - field-V0    1074 November 11th,  2011 J.Apostolakis - field-V09-04-06
1104 ----------------------------------               1075 ----------------------------------
1105 - Added G4Field.cc to list of files in source    1076 - Added G4Field.cc to list of files in sources.cmake
1106                                                  1077 
1107 November  4th,  2011 J.Apostolakis - field-V0    1078 November  4th,  2011 J.Apostolakis - field-V09-04-05
1108 ----------------------------------               1079 ----------------------------------
1109 - G4Field: revised to improve ability to dete    1080 - G4Field: revised to improve ability to detect gravity field:
1110   Added new data member to identify gravity f    1081   Added new data member to identify gravity field;
1111   Added new method IsGravityActive() to acces    1082   Added new method IsGravityActive() to access this data member;
1112   Created new source file: moving constructor    1083   Created new source file: moving constructors to it.
1113 - Changed G4UniformGravityField and G4Electro    1084 - Changed G4UniformGravityField and G4ElectroMagneticField
1114   to accomodate this refinement.                 1085   to accomodate this refinement.
1115                                                  1086 
1116 November 2nd,  2011 P.Gumplinger - field-V09-    1087 November 2nd,  2011 P.Gumplinger - field-V09-04-04
1117 --------------------------------                 1088 --------------------------------
1118 - update list of files in sources.cmake          1089 - update list of files in sources.cmake
1119                                                  1090 
1120 October 28th,  2011 P.Gumplinger - field-V09-    1091 October 28th,  2011 P.Gumplinger - field-V09-04-03
1121 --------------------------------                 1092 --------------------------------
1122 - Added (uniform) gravity field capability.      1093 - Added (uniform) gravity field capability.
1123   New classes G4EqGravityField, G4UniformGrav    1094   New classes G4EqGravityField, G4UniformGravityField.
1124                                                  1095 
1125   *Required* for co-working tag in Transporta    1096   *Required* for co-working tag in Transportation
1126                                                  1097 
1127 October 12th,  2011 P.Gumplinger - field-V09-    1098 October 12th,  2011 P.Gumplinger - field-V09-04-02
1128 --------------------------------                 1099 --------------------------------
1129 - replaced: omegac = 0.105658387*GeV/mass * 2    1100 - replaced: omegac = 0.105658387*GeV/mass * 2.837374841e-3*(rad/cm/kilogauss)
1130   with:     omegac = (eplus/particleMass)*c_l    1101   with:     omegac = (eplus/particleMass)*c_light
1131   in G4EqEMFieldWithEDM.cc, G4Mag_SpinEqRhs.c    1102   in G4EqEMFieldWithEDM.cc, G4Mag_SpinEqRhs.cc, G4EqEMFieldWithSpin.cc
1132   changed calculation:                           1103   changed calculation:
1133      std::sqrt(kineticEnergy*kineticEnergy +     1104      std::sqrt(kineticEnergy*kineticEnergy + 2.0*restMass_c2*kineticEnergy);
1134   to:                                            1105   to:
1135      std::sqrt(kineticEnergy*(kineticEnergy+2    1106      std::sqrt(kineticEnergy*(kineticEnergy+2.0*restMass_c2))
1136   in G4FieldTrack.cc                             1107   in G4FieldTrack.cc
1137                                                  1108 
1138 August 11th,  2011 G.Cosmo - field-V09-04-01     1109 August 11th,  2011 G.Cosmo - field-V09-04-01
1139 --------------------------                       1110 --------------------------
1140 - Migrated to new G4Exception scheme for warn    1111 - Migrated to new G4Exception scheme for warnings and errors.
1141 - Defined scheme for warnings/errors coding:     1112 - Defined scheme for warnings/errors coding:
1142   + 1xxx for warnings, 0xxx for errors.          1113   + 1xxx for warnings, 0xxx for errors.
1143   Code numbering:                                1114   Code numbering:
1144   + 0001: not supported or implemented featur    1115   + 0001: not supported or implemented features;
1145   + 0002: invalid setup/construct;               1116   + 0002: invalid setup/construct;
1146   + 0003: invalid run condition;                 1117   + 0003: invalid run condition;
1147   + 1001: incorrect setup; automatically adap    1118   + 1001: incorrect setup; automatically adapted.
1148   + 1002: notification.                          1119   + 1002: notification.
1149                                                  1120 
1150 May 13th, 2011 J.Apostolakis                     1121 May 13th, 2011 J.Apostolakis
1151 ----------------------------                     1122 ----------------------------
1152 - Added new class G4TrialsCounter for keeping    1123 - Added new class G4TrialsCounter for keeping statistics of trials.
1153 - Avoid printing out pointer in G4CachedMagne    1124 - Avoid printing out pointer in G4CachedMagneticField::ReportStatistics().
1154 - Updated unit tests.                            1125 - Updated unit tests.
1155                                                  1126 
1156 May 12th,  2011 G.Cosmo - field-V09-04-00        1127 May 12th,  2011 G.Cosmo - field-V09-04-00
1157 -----------------------                          1128 -----------------------
1158 - Fixed compilation warnings from gcc-4.6.0 f    1129 - Fixed compilation warnings from gcc-4.6.0 for variables set but not used.
1159                                                  1130 
1160 May 5th,  2011 J.Apostolakis                     1131 May 5th,  2011 J.Apostolakis
1161 ----------------------------                     1132 ----------------------------
1162 - Reordered data members to group invariants,    1133 - Reordered data members to group invariants, field parameters, etc...
1163                                                  1134 
1164 Sep 10th,  2010 J.Apostolakis - field-V09-03-    1135 Sep 10th,  2010 J.Apostolakis - field-V09-03-03
1165 -----------------------------                    1136 -----------------------------
1166 - Revised constructor of G4MagErrorStepper to    1137 - Revised constructor of G4MagErrorStepper to add number of State variables
1167 - Corrected MagErrorStepper to copy State Var    1138 - Corrected MagErrorStepper to copy State Variable to output
1168 - Enable G4ConstRK4 to copy remaining State V    1139 - Enable G4ConstRK4 to copy remaining State Variables (must integrate 6)
1169                                                  1140 
1170 Sep 10th,  2010 J.Apostolakis - field-V09-03-    1141 Sep 10th,  2010 J.Apostolakis - field-V09-03-02
1171 -----------------------------                    1142 -----------------------------
1172 - New class G4MonopoleEq for rhs of d(pc)/ds     1143 - New class G4MonopoleEq for rhs of d(pc)/ds propagation in field
1173   in SI units (V.Grichine).                      1144   in SI units (V.Grichine).
1174 - Fixed passing of time in G4NystromRK4          1145 - Fixed passing of time in G4NystromRK4
1175                                                  1146 
1176 Jul 21st,  2010 T.Nikitina - field-V09-03-01     1147 Jul 21st,  2010 T.Nikitina - field-V09-03-01
1177 --------------------------                       1148 --------------------------
1178 - Fixed cases of memory corruption in G4RKG3_    1149 - Fixed cases of memory corruption in G4RKG3_Stepper.
1179 - Fixed case of unused array data member in G    1150 - Fixed case of unused array data member in G4ExactHelixStepper.
1180 - Removed useless code never executed in G4Co    1151 - Removed useless code never executed in G4ConstRK4::Stepper().
1181 - Fixed initialization in G4NystromRK4 constr    1152 - Fixed initialization in G4NystromRK4 constructor.
1182                                                  1153 
1183 Jul 14th,  2010 G.Cosmo - field-V09-03-00        1154 Jul 14th,  2010 G.Cosmo - field-V09-03-00
1184 -----------------------                          1155 -----------------------
1185 - Added dummy initialization of members in co    1156 - Added dummy initialization of members in constructors for G4CashKarpRKF45,
1186   G4ConstRK4, G4EqEMFieldWithEDM, G4EqEMField    1157   G4ConstRK4, G4EqEMFieldWithEDM, G4EqEMFieldWithSpin, G4ExactHelixStepper,
1187   G4FieldTrack, G4MagHelicalStepper, G4MagInt    1158   G4FieldTrack, G4MagHelicalStepper, G4MagInt_Driver, G4Mag_EqRhs,
1188   G4Mag_SpinEqRhs, G4Mag_UsualEqRhs, G4Nystro    1159   G4Mag_SpinEqRhs, G4Mag_UsualEqRhs, G4NystromRK4, G4RKG3_Stepper,
1189   G4UniformElectricField, G4UniformElectricFi    1160   G4UniformElectricField, G4UniformElectricField.
1190                                                  1161 
1191 Nov 12th,  2009 J.Apostolakis - field-V09-02-    1162 Nov 12th,  2009 J.Apostolakis - field-V09-02-09
1192 -----------------------------                    1163 -----------------------------
1193 - G4MagIntegratorDriver:  activate check on i    1164 - G4MagIntegratorDriver:  activate check on integration error for spin.
1194                                                  1165 
1195 Nov 12th,  2009 J.Apostolakis - field-V09-02-    1166 Nov 12th,  2009 J.Apostolakis - field-V09-02-08
1196 -----------------------------  (fix only)        1167 -----------------------------  (fix only)
1197 - G4Nystrom:  Corrected interface method getF    1168 - G4Nystrom:  Corrected interface method getField: array now has explicit dimension[4]
1198                 (Problem found by gcc 4.3 - i    1169                 (Problem found by gcc 4.3 - it checked indices used in inline method! )
1199                                                  1170 
1200 Nov 6th,  2009 P.Gumplinger - field-V09-02-07    1171 Nov 6th,  2009 P.Gumplinger - field-V09-02-07
1201 ---------------------------                      1172 ---------------------------
1202 - bug fix in G4EqEMFieldWithSpin and G4EqEMFi    1173 - bug fix in G4EqEMFieldWithSpin and G4EqEMFieldWithEDM
1203   thanks to Hiromi Iinuma (KEK) see:             1174   thanks to Hiromi Iinuma (KEK) see:
1204   http://hypernews.slac.stanford.edu/HyperNew    1175   http://hypernews.slac.stanford.edu/HyperNews/geant4/get/emfields/161.html
1205                                                  1176 
1206 Nov 5th,  2009 J.Apostolakis - field-V09-02-0    1177 Nov 5th,  2009 J.Apostolakis - field-V09-02-06
1207 ----------------------------                     1178 ----------------------------
1208 - G4MagIntegratorDriver.cc : Enabled call to     1179 - G4MagIntegratorDriver.cc : Enabled call to ComputeRightHandSide
1209 - G4NystromRK4.cc          : Disabled auxilia    1180 - G4NystromRK4.cc          : Disabled auxiliary code in Stepper (needed if
1210                               ComputeRightHan    1181                               ComputeRightHandSide is not called.)
1211                                                  1182 
1212 Nov 5th,  2009 J.Apostolakis - field-V09-02-0    1183 Nov 5th,  2009 J.Apostolakis - field-V09-02-05
1213 ----------------------------                     1184 ----------------------------
1214 - Added new virtual method CalculateRightHand    1185 - Added new virtual method CalculateRightHandSide to G4MagIntegratorStepper for use
1215       in caching momentum (and field value) b    1186       in caching momentum (and field value) by G4NystromRK4
1216       Default implementation in G4MagIntegrat    1187       Default implementation in G4MagIntegratorStepper calls RightHandSide inline method.
1217 - G4Nystrom:  New Set/Get method for cache di    1188 - G4Nystrom:  New Set/Get method for cache distance.
1218               Changed private data members in    1189               Changed private data members in G4NystromRK4.
1219 - G4MagIntegratorDriver:  alternative call to    1190 - G4MagIntegratorDriver:  alternative call to ComputeRightHandSide is not used (in comment)
1220               As a result G4NystromRK4 operat    1191               As a result G4NystromRK4 operates without reusing
1221                                                  1192 
1222 Nov 5th,  2009 J.Apostolakis - field-V09-02-0    1193 Nov 5th,  2009 J.Apostolakis - field-V09-02-04
1223 ----------------------------                     1194 ----------------------------
1224 - G4CachedMagneticField: New Simple class to     1195 - G4CachedMagneticField: New Simple class to cache value of Magnetic Field.
1225      Speeds up code when calculation of field    1196      Speeds up code when calculation of field value is complex.
1226 - G4NystromRK4 :         New Stepper with Nys    1197 - G4NystromRK4 :         New Stepper with Nystrom for magnetic field
1227      with analytic estimation of integration     1198      with analytic estimation of integration error.
1228      Greatly reduces number of field value pe    1199      Greatly reduces number of field value per step.
1229 - Revised testPropagateMagField to use Cached    1200 - Revised testPropagateMagField to use Cached Quadrupole field,
1230      and to cover G4NystromRK4 and G4ConstRK4    1201      and to cover G4NystromRK4 and G4ConstRK4.
1231                                                  1202 
1232 Nov 4th,  2009 P.Gumplinger - field-V09-02-03    1203 Nov 4th,  2009 P.Gumplinger - field-V09-02-03
1233 ---------------------------                      1204 ---------------------------
1234 - (minor change) remove comment from G4EqEMFi    1205 - (minor change) remove comment from G4EqEMFieldWithSpin.cc
1235   add G4EqEMFieldWithEDM class: this is the R    1206   add G4EqEMFieldWithEDM class: this is the RHS of EofM in a combined
1236   electric and magnetic field, with spin trac    1207   electric and magnetic field, with spin tracking for both MDM and EDM terms.
1237   Thanks to Kevin Lynch, Phys. Dept. at Bosto    1208   Thanks to Kevin Lynch, Phys. Dept. at Boston University.
1238                                                  1209 
1239 May 18th, 2009 T.Nikitina - field-V09-02-02      1210 May 18th, 2009 T.Nikitina - field-V09-02-02
1240 -------------------------                        1211 -------------------------
1241 - Enhanced algorithm G4ChordFinder::ApproxCur    1212 - Enhanced algorithm G4ChordFinder::ApproxCurvePointS() in order to speedup
1242   BrentLocator.                                  1213   BrentLocator.
1243                                                  1214 
1244 March 25th, 2009 G.Cosmo - field-V09-02-01       1215 March 25th, 2009 G.Cosmo - field-V09-02-01
1245 ------------------------                         1216 ------------------------
1246 - Some code cleanup and formatting...            1217 - Some code cleanup and formatting...
1247                                                  1218 
1248 March 6th, 2009 P.Gumplinger - field-V09-02-0    1219 March 6th, 2009 P.Gumplinger - field-V09-02-00
1249 ----------------------------                     1220 ----------------------------
1250 - Added 3rd term of BMT equation (Spin x Beta    1221 - Added 3rd term of BMT equation (Spin x Beta x Efield) to G4EqEMFieldWithSpin,
1251   addresses emfields forum posting #155 (bug     1222   addresses emfields forum posting #155 (bug report). Thanks to Kevin Lynch,
1252   Phys. Dept. at Boston University.              1223   Phys. Dept. at Boston University.
1253 - Moved renormalization of spin from G4EqEMFi    1224 - Moved renormalization of spin from G4EqEMFieldWithSpin and G4Mag_SpinEqRhs to
1254   G4ClassicalRK4 and G4SimpleHeum.               1225   G4ClassicalRK4 and G4SimpleHeum.
1255 - Added Spin propagation errors to the criter    1226 - Added Spin propagation errors to the criteria for 'OneGoodStep' in
1256   G4MagIntegratorDriver but actually don't ad    1227   G4MagIntegratorDriver but actually don't add it (yet) to the decision logic.
1257                                                  1228 
1258 November, 19th, 2008  P.Gumplinger - field-V0    1229 November, 19th, 2008  P.Gumplinger - field-V09-01-05
1259 ----------------------------------               1230 ----------------------------------
1260 - Renormalized the spin to 1 in G4EqEMFieldWi    1231 - Renormalized the spin to 1 in G4EqEMFieldWithSpin and G4Mag_SpinEqRhs.
1261                                                  1232 
1262 November, 7th, 2008   P.Gumplinger - field-V0    1233 November, 7th, 2008   P.Gumplinger - field-V09-01-04
1263 ----------------------------------               1234 ----------------------------------
1264 - Added SetAnomaly() and GetAnomaly() accesso    1235 - Added SetAnomaly() and GetAnomaly() accessors to G4EqEMFieldWithSpin.
1265                                                  1236 
1266 October, 28th, 2008   T.Nikitina - field-V09-    1237 October, 28th, 2008   T.Nikitina - field-V09-01-03
1267 --------------------------------                 1238 --------------------------------
1268 - Added 'ApproxCurveV' to method G4ChordFinde    1239 - Added 'ApproxCurveV' to method G4ChordFinder::ApproxCurvePointS() in
1269   order to better calculate the curve length.    1240   order to better calculate the curve length.
1270 - Some code cleanup.                             1241 - Some code cleanup.
1271                                                  1242 
1272 September, 18th, 2008   T.Nikitina               1243 September, 18th, 2008   T.Nikitina
1273 ----------------------------------               1244 ----------------------------------
1274 - Added new stepper class G4ConstRK4, perform    1245 - Added new stepper class G4ConstRK4, performing integration of one step
1275   with error calculation in constant magnetic    1246   with error calculation in constant magnetic field; implementation derived
1276   from G4ClassicalRK4.                           1247   from G4ClassicalRK4.
1277                                                  1248 
1278 July, 15th, 2008   J.Apostolakis - field-V09-    1249 July, 15th, 2008   J.Apostolakis - field-V09-01-02
1279 --------------------------------                 1250 --------------------------------
1280 - Revised signature of G4ChordFinder::FinderN    1251 - Revised signature of G4ChordFinder::FinderNextChord(), making 'FieldTrack'
1281   argument passed a reference.                   1252   argument passed a reference.
1282                                                  1253 
1283 May, 28th, 2008   T.Nikitina                     1254 May, 28th, 2008   T.Nikitina
1284 ----------------------------                     1255 ----------------------------
1285 - G4ChordFinder: added new method ApproxCurve    1256 - G4ChordFinder: added new method ApproxCurvePointS() using Brent second order
1286   location mechanism.                            1257   location mechanism.
1287                                                  1258 
1288 April 24th, 2008   T.Nikitina - field-V09-01-    1259 April 24th, 2008   T.Nikitina - field-V09-01-01
1289 -----------------------------                    1260 -----------------------------
1290 - Fix 'unused' non-initialized values of dydx    1261 - Fix 'unused' non-initialized values of dydx in G4EqMagElectricField
1291   and G4EqEMFieldWithSpin.                       1262   and G4EqEMFieldWithSpin.
1292                                                  1263 
1293 January 17th, 2008   G.Cosmo - field-V09-01-0    1264 January 17th, 2008   G.Cosmo - field-V09-01-00
1294 ----------------------------                     1265 ----------------------------
1295 - G4CashKarpRKF45: deleted un-needed duplicat    1266 - G4CashKarpRKF45: deleted un-needed duplicate (and unused) instance variable
1296  'fNumberOfVariables', already defined in G4M    1267  'fNumberOfVariables', already defined in G4MagIntegratorStepper. (J.Ap.)
1297 - Some code cleanup.                             1268 - Some code cleanup.
1298                                                  1269 
1299 December 7th, 2007   J.Apostolakis & T.Nikiti    1270 December 7th, 2007   J.Apostolakis & T.Nikitina - field-V09-00-03
1300 ---------------------------------------------    1271 -----------------------------------------------
1301 - New class G4FieldManagerStore. It enables r    1272 - New class G4FieldManagerStore. It enables resetting of all chord
1302   finders' state. Needed to address problem r    1273   finders' state. Needed to address problem reported by user.
1303                                                  1274 
1304 September 9th, 2007  G.Cosmo - field-V09-00-0    1275 September 9th, 2007  G.Cosmo - field-V09-00-02a
1305 ----------------------------                     1276 ----------------------------
1306 - Some code cleanup in G4MagHelicalStepper.cc    1277 - Some code cleanup in G4MagHelicalStepper.cc.
1307                                                  1278 
1308 August 30th, 2007    P.Gumplinger - field-V09    1279 August 30th, 2007    P.Gumplinger - field-V09-00-02
1309 ---------------------------------                1280 ---------------------------------
1310 - Add G4EqEMFieldWithSpin class to allow trac    1281 - Add G4EqEMFieldWithSpin class to allow tracking of spin also in
1311   G4ElectroMagneticFields                        1282   G4ElectroMagneticFields
1312                                                  1283 
1313 August 21st, 2007    T.Nikitina - field-V09-0    1284 August 21st, 2007    T.Nikitina - field-V09-00-01
1314 -------------------------------                  1285 -------------------------------
1315 - Fix to DistChord() method for Helical Stepp    1286 - Fix to DistChord() method for Helical Steppers: adopt 'special' case
1316   also for Ang<2pi not only for Ang<pi; use c    1287   also for Ang<2pi not only for Ang<pi; use cos() in place of tan(), to
1317   improve CPU performance.                       1288   improve CPU performance.
1318 - Improved AdvanceHelix() to be able to make     1289 - Improved AdvanceHelix() to be able to make half step and full step
1319   in one call.                                   1290   in one call.
1320 - In G4HelixMixedStepper added possibility to    1291 - In G4HelixMixedStepper added possibility to call different steppers for
1321   small steps and add some statistics how off    1292   small steps and add some statistics how offen different steppers are called.
1322 - G4RKG3_Stepper: improved internal algorithm    1293 - G4RKG3_Stepper: improved internal algorithm to use pre-computed values;
1323   the stepper now gives comparable CPU perfor    1294   the stepper now gives comparable CPU performance as ClassicalRK4.
1324 - Updated unit tests.                            1295 - Updated unit tests.
1325                                                  1296 
1326 August 17th, 2007    G.Cosmo - field-V09-00-0    1297 August 17th, 2007    G.Cosmo - field-V09-00-00
1327 ----------------------------                     1298 ----------------------------
1328 - Changed FatalException to EventMustBeAborte    1299 - Changed FatalException to EventMustBeAborted in AccurateAdvance()
1329   if proposed integration step is negative.      1300   if proposed integration step is negative.
1330                                                  1301 
1331 June 8th, 2007    T.Nikitina - field-V08-03-0    1302 June 8th, 2007    T.Nikitina - field-V08-03-03
1332 ----------------------------                     1303 ----------------------------
1333 - Relaxed FatalException to Warning in G4MagI    1304 - Relaxed FatalException to Warning in G4MagIntegratorDriver::AccurateAdvance()
1334   for case of step zero and return previous v    1305   for case of step zero and return previous value. This fixes problem
1335   observed by ATLAS in release 8.3 when requi    1306   observed by ATLAS in release 8.3 when requiring very accurate propagation
1336   -- ie using very small values for acceptabl    1307   -- ie using very small values for acceptable integration error.
1337                                                  1308 
1338 May 18th, 2007    T.Nikitina - field-V08-03-0    1309 May 18th, 2007    T.Nikitina - field-V08-03-02
1339 ----------------------------                     1310 ----------------------------
1340 - New class G4HelixMixedStepper, mixing helic    1311 - New class G4HelixMixedStepper, mixing helical stepper and RK
1341   G4MagHelicalStepper                            1312   G4MagHelicalStepper
1342 - Keep values of  inverse Radius, ..             1313 - Keep values of  inverse Radius, ..
1343 - New calculation of DistChord for SteppingAn    1314 - New calculation of DistChord for SteppingAngle > pi
1344   G4RKG3Stepper                                  1315   G4RKG3Stepper
1345 - New calculation of DistChord for SteppingAn    1316 - New calculation of DistChord for SteppingAngle > pi
1346                                                  1317 
1347 May 16th, 2007    G.Cosmo - field-V08-03-01      1318 May 16th, 2007    G.Cosmo - field-V08-03-01
1348 -------------------------                        1319 -------------------------
1349 - Introduced new class G4ErrorMag_UsualEqRhs     1320 - Introduced new class G4ErrorMag_UsualEqRhs used to reverse the magnetic
1350   field when propagation is backwards for err    1321   field when propagation is backwards for error propagation (by P.Arce).
1351 - Coworks with tag "global-V08-03-02".           1322 - Coworks with tag "global-V08-03-02".
1352                                                  1323 
1353 May 11th, 2007    G.Cosmo - field-V08-03-00      1324 May 11th, 2007    G.Cosmo - field-V08-03-00
1354 -------------------------                        1325 -------------------------
1355 - Use call to G4GeometryTolerance instead of     1326 - Use call to G4GeometryTolerance instead of kCarTolerance constant in
1356   G4MagIntegratorDriver.                         1327   G4MagIntegratorDriver.
1357 - Requires tag "global-V08-03-00" and related    1328 - Requires tag "global-V08-03-00" and related tag set.
1358                                                  1329 
1359 May 10th, 2007    J.Apostolakis - field-V08-0    1330 May 10th, 2007    J.Apostolakis - field-V08-02-01
1360 -------------------------------                  1331 -------------------------------
1361 - G4MagIntegratorDriver:                         1332 - G4MagIntegratorDriver:
1362     * added protections against zero initial     1333     * added protections against zero initial or internal step h=0, (exceptions)
1363     * revised (re)calculation of h, and quit     1334     * revised (re)calculation of h, and quit loop if h/length < smallest-fraction (~ 10^-12)
1364                                                  1335 
1365 April 26th, 2007  T.Nikitina - field-V08-02-0    1336 April 26th, 2007  T.Nikitina - field-V08-02-00
1366 ----------------------------                     1337 ----------------------------
1367 - Corrected integration constants in G4MagHel    1338 - Corrected integration constants in G4MagHelicalStepper
1368 - Added implementation of G4RKG3_Stepper, ste    1339 - Added implementation of G4RKG3_Stepper, stepper derived from Geant3.
1369 - Updated NTST unit test. New unit test "fiel    1340 - Updated NTST unit test. New unit test "field06" for comparison of steppers.
1370                                                  1341 
1371 November 14th, 2006  J.Apostolakis - field-V0    1342 November 14th, 2006  J.Apostolakis - field-V08-01-02
1372 ----------------------------------               1343 ----------------------------------
1373 - G4MagIntegratorDriver                          1344 - G4MagIntegratorDriver
1374   * Made first argument of GetDerivatives a r    1345   * Made first argument of GetDerivatives a reference - avoid copy
1375 - G4MagIntegratorStepper                         1346 - G4MagIntegratorStepper
1376   * Include the SetEquationOfMotion() method     1347   * Include the SetEquationOfMotion() method in G4MagIntegratorStepper
1377     (for Geant4e, as in field-V08-01-00)         1348     (for Geant4e, as in field-V08-01-00)
1378   * Update of disclaimers.                       1349   * Update of disclaimers.
1379                                                  1350 
1380 November 13th, 2006  G.Cosmo - field-V08-01-0    1351 November 13th, 2006  G.Cosmo - field-V08-01-01
1381 ----------------------------                     1352 ----------------------------
1382 - G4FieldTrack:                                  1353 - G4FieldTrack:
1383   o Implemented missing definition for GetCha    1354   o Implemented missing definition for GetCharge().
1384   o Corrected 'const' qualifier for accessors    1355   o Corrected 'const' qualifier for accessors in the subclass.
1385   o Cleanup ...                                  1356   o Cleanup ...
1386 - NOTE: this tag is NOT including the change     1357 - NOTE: this tag is NOT including the change below in G4MagIntegratorStepper.
1387                                                  1358 
1388 June 21st, 2006  J.Apostolakis - field-V08-01    1359 June 21st, 2006  J.Apostolakis - field-V08-01-00
1389 ------------------------------                   1360 ------------------------------
1390 - Including the SetEquationOfMotion() method     1361 - Including the SetEquationOfMotion() method in G4MagIntegratorStepper
1391                                                  1362 
1392 June 22nd, 2006  J.Apostolakis - field-V08-00    1363 June 22nd, 2006  J.Apostolakis - field-V08-00-07
1393 -----------------------------                    1364 -----------------------------
1394 - G4ExactHelixStepper: reintroduced corrected    1365 - G4ExactHelixStepper: reintroduced corrected class
1395     --> testPropagateMagField now tests it al    1366     --> testPropagateMagField now tests it also (added)
1396 - G4MagHelicalStepper: made Stepper virtual (    1367 - G4MagHelicalStepper: made Stepper virtual (for now)
1397              to enable G4ExactHelixStepper to    1368              to enable G4ExactHelixStepper to override it
1398                                                  1369 
1399 June 21st, 2006  J.Apostolakis - field-V08-00    1370 June 21st, 2006  J.Apostolakis - field-V08-00-06
1400 -----------------------------                    1371 -----------------------------
1401 - G4ExactHelixStepper: taking out class          1372 - G4ExactHelixStepper: taking out class
1402    (provisional tag in case of difficulties w    1373    (provisional tag in case of difficulties with class, revisions)
1403                                                  1374 
1404 --- The field-V08-00-0x , x > 6, tags do not     1375 --- The field-V08-00-0x , x > 6, tags do not include the change below
1405                                                  1376 
1406 May 27th, 2006  J.Apostolakis - field-V08-00-    1377 May 27th, 2006  J.Apostolakis - field-V08-00-05
1407 -----------------------------                    1378 -----------------------------
1408 - G4FieldTrack: Fix for simple compilation er    1379 - G4FieldTrack: Fix for simple compilation error on Sun.
1409                                                  1380 
1410 May 23rd, 2006  J.Apostolakis - field-V08-00-    1381 May 23rd, 2006  J.Apostolakis - field-V08-00-04
1411 -----------------------------                    1382 -----------------------------
1412 - G4FieldTrack: Fix for memory leak for Charg    1383 - G4FieldTrack: Fix for memory leak for ChargeState
1413    Made G4ChargeState a data member (has an i    1384    Made G4ChargeState a data member (has an instance)
1414                                                  1385 
1415 May 18th, 2006  J.Apostolakis - field-V08-00-    1386 May 18th, 2006  J.Apostolakis - field-V08-00-03
1416 -----------------------------                    1387 -----------------------------
1417 - G4FieldTrack: Fix for issue with gcc 4.0  (    1388 - G4FieldTrack: Fix for issue with gcc 4.0  (mac)
1418                                                  1389 
1419 May 16th, 2006  J.Apostolakis - field-V08-00-    1390 May 16th, 2006  J.Apostolakis - field-V08-00-02
1420 -----------------------------                    1391 -----------------------------
1421 - G4ExactHelixStepper                            1392 - G4ExactHelixStepper
1422    Taken out alpha version - it was included     1393    Taken out alpha version - it was included in error
1423                                                  1394 
1424 May 11th, 2006  J.Apostolakis - field-V08-00-    1395 May 11th, 2006  J.Apostolakis - field-V08-00-01
1425 -----------------------------                    1396 -----------------------------
1426 - G4FieldTrack                                   1397 - G4FieldTrack
1427    Significant, provisional change:              1398    Significant, provisional change:
1428      * Added charge and moments to FieldTrack    1399      * Added charge and moments to FieldTrack
1429          (SetMethods,  and pointer to embedde    1400          (SetMethods,  and pointer to embedded class G4ChargeState)
1430    Technical revisions:                          1401    Technical revisions:
1431      * New constructor, with charge and witho    1402      * New constructor, with charge and without velocity
1432      * New almost-default constructor (taking    1403      * New almost-default constructor (taking a character)
1433    Also:                                         1404    Also:
1434      * New constructor to take const referenc    1405      * New constructor to take const reference to Spin
1435      * New implementation method UpdateFourMo    1406      * New implementation method UpdateFourMomentum
1436      * Streaming operator takes const referen    1407      * Streaming operator takes const reference,
1437          and outputs momentum magnitude & dir    1408          and outputs momentum magnitude & direction magn.
1438                                                  1409 
1439 - G4ExactHelixStepper                            1410 - G4ExactHelixStepper
1440    Included in error                             1411    Included in error
1441                                                  1412 
1442 Apr 6th, 2006  J.Apostolakis - field-V08-00-0    1413 Apr 6th, 2006  J.Apostolakis - field-V08-00-00
1443 ----------------------------                     1414 ----------------------------
1444 - In G4FieldManager                              1415 - In G4FieldManager
1445  Added missing  const GetChordFinder() method    1416  Added missing  const GetChordFinder() method -- Problem report #847
1446  Corrected description (at top of include fil    1417  Corrected description (at top of include file hh):
1447   - It is possible to set the field manager o    1418   - It is possible to set the field manager of a logical volume (since long)
1448                                                  1419 
1449                                                  1420 
1450 Nov 9th, 2005  G.Cosmo - field-V07-01-00         1421 Nov 9th, 2005  G.Cosmo - field-V07-01-00
1451 ----------------------                           1422 ----------------------
1452 - Archived source code of field01 unit test,     1423 - Archived source code of field01 unit test, now moved to examples/extended.
1453 - Migrated unit test NTST to use <sstream> an    1424 - Migrated unit test NTST to use <sstream> and std:: namespace. Up-to-date
1454   with G4VParticleChange new interface.          1425   with G4VParticleChange new interface.
1455                                                  1426 
1456 Dec 2nd, 2004  G.Cosmo - field-V06-02-02         1427 Dec 2nd, 2004  G.Cosmo - field-V06-02-02
1457 ----------------------                           1428 ----------------------
1458 - Implemented migration to <cmath> for standa    1429 - Implemented migration to <cmath> for standard mathematical functions.
1459                                                  1430 
1460 Dec 2nd, 2004  J.Apostolakis - field-V06-02-0    1431 Dec 2nd, 2004  J.Apostolakis - field-V06-02-01
1461 ----------------------------                     1432 ----------------------------
1462 - Improvements to comments in key Field class    1433 - Improvements to comments in key Field classes
1463 - Changes to test/NTST, renaming 'main()' fil    1434 - Changes to test/NTST, renaming 'main()' file & modifying input files
1464 - Several improvements to test files             1435 - Several improvements to test files
1465    testProElectroMagField.cc                     1436    testProElectroMagField.cc
1466      * updating for new Electric Field inheri    1437      * updating for new Electric Field inheritance (& need for
1467        different ChordFinder creation )          1438        different ChordFinder creation )
1468      * adding columns to print-outs in spin c    1439      * adding columns to print-outs in spin case for better diagnosis
1469    testPropagateMagField.cc                      1440    testPropagateMagField.cc
1470      * Added verbosity level 1 to field Propa    1441      * Added verbosity level 1 to field Propagator, relabelled old method.
1471    testPropagateSpin.cc                          1442    testPropagateSpin.cc
1472      * Added more printout of parameters (sta    1443      * Added more printout of parameters (state) of G4PropagatorInField
1473        and G4FieldManager before running each    1444        and G4FieldManager before running each test.
1474    test/NTST                                     1445    test/NTST
1475      * Renamed main() file to testNTST.cc and    1446      * Renamed main() file to testNTST.cc and added G4UItcsh terminal.
1476                                                  1447 
1477                                                  1448 
1478 Oct 20th, 2004  P.Gumplinger - field-V06-02-0    1449 Oct 20th, 2004  P.Gumplinger - field-V06-02-00
1479 ----------------------------                     1450 ----------------------------
1480 - Added Set/GetAnomaly() methods in G4Mag_Spi    1451 - Added Set/GetAnomaly() methods in G4Mag_SpinEqRhs.
1481                                                  1452 
1482 Feb 9th, 2004  G.Cosmo - field-V06-00-00         1453 Feb 9th, 2004  G.Cosmo - field-V06-00-00
1483 ----------------------                           1454 ----------------------
1484 - G4UniformMagField.cc: added missing impleme    1455 - G4UniformMagField.cc: added missing implementation for
1485   GetConstantFieldValue(). Fixes bug report #    1456   GetConstantFieldValue(). Fixes bug report #575.
1486                                                  1457 
1487 Nov 13th, 2003  J.Apostolakis - field-V05-02-    1458 Nov 13th, 2003  J.Apostolakis - field-V05-02-08
1488 -----------------------------                    1459 -----------------------------
1489 - G4ChordFinder:                                 1460 - G4ChordFinder:
1490   o extended the arguments of AdvanceChordLim    1461   o extended the arguments of AdvanceChordLimited  and  FindNextChord
1491     adding the current safety sphere (origin,    1462     adding the current safety sphere (origin, radius), for use in optimising.
1492   o fixed set functions which had side effect    1463   o fixed set functions which had side effect (on first fraction.)
1493 - Added new class G4ChordFinderSaf (using abo    1464 - Added new class G4ChordFinderSaf (using above)
1494   o which uses safety to create longer chords    1465   o which uses safety to create longer chords, so enabling
1495       propagation in fewer steps --> performa    1466       propagation in fewer steps --> performance optimisation
1496 - G4FieldManager:                                1467 - G4FieldManager:
1497     Changed default accuracy parameters to mu    1468     Changed default accuracy parameters to much better values:
1498         Epsilon Min Default  to 5.0e-5  from     1469         Epsilon Min Default  to 5.0e-5  from 5.0e-7  (too small)
1499         Epsilon Max Default  to 0.001   from     1470         Epsilon Max Default  to 0.001   from 0.05    (far too big)
1500                                                  1471 
1501 Nov  7th, 2003  J.Apostolakis - field-V05-02-    1472 Nov  7th, 2003  J.Apostolakis - field-V05-02-07
1502 -----------------------------                    1473 -----------------------------
1503 - G4ChordFinder                                  1474 - G4ChordFinder
1504   o Made this a base class                       1475   o Made this a base class
1505     * to enable specialised implementations      1476     * to enable specialised implementations
1506     * virtual methods: FindNextChord, PrintSt    1477     * virtual methods: FindNextChord, PrintStatistics)
1507     * new method AccumulateStatistics to aid     1478     * new method AccumulateStatistics to aid in this
1508                                                  1479 
1509   o New default value of                         1480   o New default value of                                      Accuracy!!
1510       Delta Chord        to  0.25 mm    (from    1481       Delta Chord        to  0.25 mm    (from 3.00 mm)     <-----
1511                                                  1482 
1512 - G4FieldManager                                 1483 - G4FieldManager
1513   o Changed default values of                    1484   o Changed default values of
1514       Delta One Step     to  0.010 mm   (from    1485       Delta One Step     to  0.010 mm   (from 0.25 mm)     <-----
1515       Delta Intersection to  0.001 mm   (from    1486       Delta Intersection to  0.001 mm   (from 0.10 mm)     <-----
1516     for increased default accuracy               1487     for increased default accuracy
1517   o Use field's DoesFieldChangesEnergy method    1488   o Use field's DoesFieldChangesEnergy method to set relevant member variable
1518                                                  1489 
1519 Nov 7th, 2003  J.Apostolakis - field-V05-02-0    1490 Nov 7th, 2003  J.Apostolakis - field-V05-02-06
1520 ----------------------------                     1491 ----------------------------
1521 - G4ChordFinder                                  1492 - G4ChordFinder
1522    Created new class members for parameters u    1493    Created new class members for parameters used in heuristics:
1523        fFirstFraction            for first st    1494        fFirstFraction            for first step
1524        fFractionLast             fraction of     1495        fFractionLast             fraction of last step, if redoing
1525        fFractionNextEstimate     confidence i    1496        fFractionNextEstimate     confidence in step est from chord
1526        fMultipleRadius           for small ra    1497        fMultipleRadius           for small radii of curve
1527    New method to Print Statistics.               1498    New method to Print Statistics.
1528    Verbosity to enable optional printing of s    1499    Verbosity to enable optional printing of stats in destructor.
1529                                                  1500 
1530 Nov 7th, 2003  J.Apostolakis - field-V05-02-0    1501 Nov 7th, 2003  J.Apostolakis - field-V05-02-05
1531 ----------------------------                     1502 ----------------------------
1532 - G4ChordFinder                                  1503 - G4ChordFinder
1533   o Added simple statistics (with access meth    1504   o Added simple statistics (with access methods)
1534 - test/NTST                                      1505 - test/NTST
1535   o Added new test, taken from D. Williams' e    1506   o Added new test, taken from D. Williams' exampleNTST
1536      modified and maintained by J. Apostolaki    1507      modified and maintained by J. Apostolakis
1537                                                  1508 
1538 Nov 5th, 2003  J.Apostolakis - field-V05-02-0    1509 Nov 5th, 2003  J.Apostolakis - field-V05-02-04
1539 ----------------------------                     1510 ----------------------------
1540 - G4FieldManager                                 1511 - G4FieldManager
1541   o Added Get/Set Min/Max imumEpsilonStep        1512   o Added Get/Set Min/Max imumEpsilonStep
1542   o Added fEpsilonMin fEpsilonMax & default t    1513   o Added fEpsilonMin fEpsilonMax & default to member variables.
1543    >> Now these can be tailored for different    1514    >> Now these can be tailored for different parts of a detector or setup
1544                                                  1515 
1545 - G4Field G4ElectroMagneticField G4MagneticFi    1516 - G4Field G4ElectroMagneticField G4MagneticField
1546   o Adding the virtual method   DoesFieldChan    1517   o Adding the virtual method   DoesFieldChangeEnergy()  [to be used later]
1547   o So that G4ElectroMagneticField derives fr    1518   o So that G4ElectroMagneticField derives from G4Field
1548     and G4MagneticField derives from G4Electr    1519     and G4MagneticField derives from G4ElectroMagneticField
1549                                                  1520 
1550 - G4MagErrorStepper and derived classes          1521 - G4MagErrorStepper and derived classes
1551     (G4ClassicalRK4 G4SimpleRunge G4ExplicitE    1522     (G4ClassicalRK4 G4SimpleRunge G4ExplicitEuler G4ImplicitEuler G4SimpleHeum)
1552   o the constructors take G4EquationOfMotion     1523   o the constructors take G4EquationOfMotion in place of a G4Mag_EqRhs
1553     as it these applicable to all types of eq    1524     as it these applicable to all types of equations
1554      (not just ones for Magnetic field)          1525      (not just ones for Magnetic field)
1555                                                  1526 
1556 - G4EqMagElectricField                           1527 - G4EqMagElectricField
1557   o derives from G4EquationOfMotion              1528   o derives from G4EquationOfMotion
1558                                                  1529 
1559 - G4ChordFinder                                  1530 - G4ChordFinder
1560   o Moved simple constructor to .cc file (tog    1531   o Moved simple constructor to .cc file (together with 'complex' one)
1561   o Changed fDefaultDeltaChord to a constant     1532   o Changed fDefaultDeltaChord to a constant member variable (from class var.)
1562                                                  1533 
1563 Nov 4th, 2003  G.Cosmo - field-V05-02-03         1534 Nov 4th, 2003  G.Cosmo - field-V05-02-03
1564 ----------------------                           1535 ----------------------
1565 Undocumented.                                    1536 Undocumented.
1566                                                  1537 
1567 Nov 4th, 2003  G.Cosmo - field-V05-02-02         1538 Nov 4th, 2003  G.Cosmo - field-V05-02-02
1568 ----------------------                           1539 ----------------------
1569 - G4ChordFinder.cc:                              1540 - G4ChordFinder.cc:
1570   o Fixed compilation problem occuring when G    1541   o Fixed compilation problem occuring when G4DEBUG_FIELD was set.
1571                                                  1542 
1572 Oct 31st, 2003  G.Cosmo - field-V05-02-01        1543 Oct 31st, 2003  G.Cosmo - field-V05-02-01
1573 -----------------------                          1544 -----------------------
1574 - Code cleanup and removal of redundant heade    1545 - Code cleanup and removal of redundant header includes, replaced
1575   where necessary by forward declarations.       1546   where necessary by forward declarations.
1576                                                  1547 
1577 Oct 24th, 2003  G.Cosmo - field-V05-02-00        1548 Oct 24th, 2003  G.Cosmo - field-V05-02-00
1578 -----------------------                          1549 -----------------------
1579 - Migrated to use new G4Exception scheme.        1550 - Migrated to use new G4Exception scheme.
1580 - Updated outputs of unit tests.                 1551 - Updated outputs of unit tests.
1581                                                  1552 
1582 Jun 25th, 2003  J.Apostolakis - field-V05-01-    1553 Jun 25th, 2003  J.Apostolakis - field-V05-01-06
1583 -----------------------------                    1554 -----------------------------
1584 - Suppressed printing of statistics (by defau    1555 - Suppressed printing of statistics (by default) in MagIntegrationDriver.
1585 - Fix for unused variables warning in ChordFi    1556 - Fix for unused variables warning in ChordFinder.
1586                                                  1557 
1587 Jun 24th, 2003  J.Apostolakis - field-V05-01-    1558 Jun 24th, 2003  J.Apostolakis - field-V05-01-05
1588 -----------------------------                    1559 -----------------------------
1589 - Fix for problems introduced in field-V05-01    1560 - Fix for problems introduced in field-V05-01-03:
1590   o G4ChordFinder:                               1561   o G4ChordFinder:
1591     - Fixed unitialised variable for next ste    1562     - Fixed unitialised variable for next step (now used for optimisation).
1592     - Protected assignment of 'fLastStepEstim    1563     - Protected assignment of 'fLastStepEstimate_Unconstrained' in case of
1593       unitialised value.                         1564       unitialised value.
1594                                                  1565 
1595 Jun 21st, 2003  J.Apostolakis - field-V05-01-    1566 Jun 21st, 2003  J.Apostolakis - field-V05-01-04
1596 -----------------------------                    1567 -----------------------------
1597 - G4FieldManager:                                1568 - G4FieldManager:
1598   o Revised into 'slightly' abstract class wi    1569   o Revised into 'slightly' abstract class with one (new) virtual method:
1599       ConfigureForTrack( const G4Track *)        1570       ConfigureForTrack( const G4Track *)
1600     to enable the user to configure it with d    1571     to enable the user to configure it with different accuracy parameters
1601     depending on energy, particle id, volume,    1572     depending on energy, particle id, volume, or other track state.
1602     Currently by default, no such configurati    1573     Currently by default, no such configuration action is undertaken.
1603                                                  1574 
1604 Jun 21st, 2003  J.Apostolakis - field-V05-01-    1575 Jun 21st, 2003  J.Apostolakis - field-V05-01-03
1605 -----------------------------                    1576 -----------------------------
1606 - Revised G4ChordFinder:                         1577 - Revised G4ChordFinder:
1607   * FindNextChord now provides next Step esti    1578   * FindNextChord now provides next Step estimate (for accuracy in Integr.)
1608   * AdvanceChordLimited to use                   1579   * AdvanceChordLimited to use
1609     - above extra argument to FindNextChord      1580     - above extra argument to FindNextChord
1610     - the next Step argument as initial-step     1581     - the next Step argument as initial-step suggested to Accurate Advance
1611 - G4MagIntegratorDriver:                         1582 - G4MagIntegratorDriver:
1612   * Added extra argument to Accurate Advance:    1583   * Added extra argument to Accurate Advance:
1613     hinitial: suggested initial step size        1584     hinitial: suggested initial step size
1614 - Note:                                          1585 - Note:
1615   * Purpose:  performance boost with small/li    1586   * Purpose:  performance boost with small/limited changes,
1616     including minor revisions of interfaces.     1587     including minor revisions of interfaces.
1617                                                  1588 
1618 Jun 20th, 2003  J.Apostolakis - field-V05-01-    1589 Jun 20th, 2003  J.Apostolakis - field-V05-01-02
1619 -----------------------------                    1590 -----------------------------
1620 - G4MagIntegratorDriver Quick Advance:           1591 - G4MagIntegratorDriver Quick Advance:
1621   o Took out two unneccessary square roots an    1592   o Took out two unneccessary square roots and two divisions.
1622 - Notes:                                         1593 - Notes:
1623   1) Pure magnetic, electric, spin field test    1594   1) Pure magnetic, electric, spin field test are completed.
1624   2) Purpose:  performance boost with small c    1595   2) Purpose:  performance boost with small changes.
1625                                                  1596 
1626 Jun 20th, 2003  J.Apostolakis - field-V05-01-    1597 Jun 20th, 2003  J.Apostolakis - field-V05-01-01
1627 -----------------------------                    1598 -----------------------------
1628 - G4MagIntegratorDriver:                         1599 - G4MagIntegratorDriver:
1629   o Corrected neglected conversion to <std> f    1600   o Corrected neglected conversion to <std> from "G4std".
1630 - Migrated unit tests to <std>.                  1601 - Migrated unit tests to <std>.
1631                                                  1602 
1632 Jun 19th, 2003  J.Apostolakis - field-V05-01-    1603 Jun 19th, 2003  J.Apostolakis - field-V05-01-00
1633 -----------------------------                    1604 -----------------------------
1634 - G4ChordFinder:                                 1605 - G4ChordFinder:
1635   o Corrected simple constructor to initialis    1606   o Corrected simple constructor to initialise several member variables
1636     including LastStepEstimate_Unconstrained.    1607     including LastStepEstimate_Unconstrained.
1637 - G4MagIntegratorDriver:                         1608 - G4MagIntegratorDriver:
1638   o Keep simple statistics on number of steps    1609   o Keep simple statistics on number of steps, total error and step size.
1639   o Took out an unneccessary square root (in     1610   o Took out an unneccessary square root (in loop).
1640 - NOTE:    tests field0X are to be migrated.     1611 - NOTE:    tests field0X are to be migrated.
1641   Purpose: fixes, small performance boost, si    1612   Purpose: fixes, small performance boost, simple statistics.
1642                                                  1613 
1643 Apr 2nd, 2003      G. Cosmo - field-V05-00-01    1614 Apr 2nd, 2003      G. Cosmo - field-V05-00-01
1644 ---------------------------                      1615 ---------------------------
1645 - Created .cc files for G4MagneticField and G    1616 - Created .cc files for G4MagneticField and G4ElecroMagneticField.
1646 - Fixed definition of copy constructors in fi    1617 - Fixed definition of copy constructors in fields inheritance chain.
1647 - Moved obsolete method StepWithEst() to priv    1618 - Moved obsolete method StepWithEst() to private in G4RKG3_Stepper,
1648   G4CashKarpRKF45 and G4ClassicalRK4.            1619   G4CashKarpRKF45 and G4ClassicalRK4.
1649 - Cleared strict pedantic warnings.              1620 - Cleared strict pedantic warnings.
1650                                                  1621 
1651 Feb 5th, 2003      G. Cosmo - field-V05-00-00    1622 Feb 5th, 2003      G. Cosmo - field-V05-00-00
1652 ---------------------------                      1623 ---------------------------
1653 - Removed redundant inclusions of PhysicalCon    1624 - Removed redundant inclusions of PhysicalConstants.h or SystemOfUnits.h.
1654   Now using directly CLHEP's headers.            1625   Now using directly CLHEP's headers.
1655                                                  1626 
1656 Dec 12th, 2002     G. Cosmo - field-V04-01-06    1627 Dec 12th, 2002     G. Cosmo - field-V04-01-06
1657 ---------------------------                      1628 ---------------------------
1658 - Moved unused variable 'nStpPr' to debug sec    1629 - Moved unused variable 'nStpPr' to debug section in G4MagIntegratorDriver.cc,
1659   method AccurateAdvance().                      1630   method AccurateAdvance().
1660                                                  1631 
1661 Dec 06th, 2002     G. Cosmo - field-V04-01-05    1632 Dec 06th, 2002     G. Cosmo - field-V04-01-05
1662 ---------------------------                      1633 ---------------------------
1663 - Merged changes by Makoto for migration to n    1634 - Merged changes by Makoto for migration to new G4ApplicationState in
1664   messengers of unit tests.                      1635   messengers of unit tests.
1665                                                  1636 
1666 Nov 29th, 2002     J. Apostolakis - field-V04    1637 Nov 29th, 2002     J. Apostolakis - field-V04-01-04
1667 ---------------------------------                1638 ---------------------------------
1668 Further fixes for unitialised variable - in o    1639 Further fixes for unitialised variable - in other steppers:
1669 G4ExplicitEuler, G4ImplicitEuler, G4ImplicitE    1640 G4ExplicitEuler, G4ImplicitEuler, G4ImplicitEuler
1670                                                  1641 
1671 Large memory leak fix for G4ImplicitEuler, sm    1642 Large memory leak fix for G4ImplicitEuler, small for ExplicitEuler.
1672 Test accuracy requirements for spin adjusted.    1643 Test accuracy requirements for spin adjusted.
1673                                                  1644 
1674 Nov 20th, 2002     J. Apostolakis - field-V04    1645 Nov 20th, 2002     J. Apostolakis - field-V04-01-03
1675 ---------------------------------                1646 ---------------------------------
1676 Further fixes for unitialised variables:         1647 Further fixes for unitialised variables:
1677                                                  1648 
1678 * G4MagIntegratorStepper                         1649 * G4MagIntegratorStepper
1679   -  Created instance variables for number of    1650   -  Created instance variables for number of Integration, State variables
1680                                                  1651 
1681 * G4MagErrorStepper                              1652 * G4MagErrorStepper
1682   -  Utilise number of State variables to ini    1653   -  Utilise number of State variables to initialise full state of Output.
1683                                                  1654 
1684 * G4Mag_SpinEqRhs                                1655 * G4Mag_SpinEqRhs
1685   -  Initialise the values of dydx that we do    1656   -  Initialise the values of dydx that we do not update.
1686                                                  1657 
1687 Note: Undoing these changes and the ones belo    1658 Note: Undoing these changes and the ones below would enable the user to see
1688         if undefined values are used in varia    1659         if undefined values are used in variables that he/she expects to
1689         have integrated.                         1660         have integrated.
1690       BUT the fix assists us to find truly un    1661       BUT the fix assists us to find truly undefined values elsewhere
1691         -- if they exist -- using valgrind.      1662         -- if they exist -- using valgrind.
1692                                                  1663 
1693 Nov  9th, 2002     J. Apostolakis - field-V04    1664 Nov  9th, 2002     J. Apostolakis - field-V04-01-02
1694 ---------------------------------                1665 ---------------------------------
1695 Fixes to address use of uninitialised variabl    1666 Fixes to address use of uninitialised variable in seting values of FieldTrack
1696 (this was done by design, but was neither ide    1667 (this was done by design, but was neither ideal or always well-behaved.)
1697 Changed:                                         1668 Changed:
1698                                                  1669 
1699 * G4MagIntegratorDriver                          1670 * G4MagIntegratorDriver
1700   - Added instance variables for number of In    1671   - Added instance variables for number of Integration, State variables
1701   - Initialise all State variables of Output     1672   - Initialise all State variables of Output with values from initial variables.
1702   - Only the Integration variables will be in    1673   - Only the Integration variables will be integrated
1703                                                  1674 
1704 * G4ClassicalRK4 and G4MagErrorStepper           1675 * G4ClassicalRK4 and G4MagErrorStepper
1705   - Copy the initial time to intermediate and    1676   - Copy the initial time to intermediate and output C-vectors,
1706      in order to provide a zero-eth estimate     1677      in order to provide a zero-eth estimate value.
1707   Note1: Should clean-up this fix, making it     1678   Note1: Should clean-up this fix, making it similar to Driver (above)
1708   Note2: Should *not* be used for time varyin    1679   Note2: Should *not* be used for time varying field unless created
1709            with at least 8 integration variab    1680            with at least 8 integration variables
1710 ---------------------------------                1681 ---------------------------------
1711 G4ChordFinder.cc                                 1682 G4ChordFinder.cc
1712   - Correction from zero dChord                  1683   - Correction from zero dChord
1713       which is does not update the Unconstrai    1684       which is does not update the Unconstrained step estimate (state)
1714   - Added instance variables to store number     1685   - Added instance variables to store number of calls and chord-trials
1715       and new print method for 'debugging'       1686       and new print method for 'debugging'
1716                                                  1687 
1717 G4Mag_UsualEqRhs.cc                              1688 G4Mag_UsualEqRhs.cc
1718   - Attempted approximations for speedup  *ov    1689   - Attempted approximations for speedup  *overwritten* by full inverse sqrt.
1719                                                  1690 
1720                                                  1691 
1721 Oct  29th, 2002   J. Apostolakis - test-V04-0    1692 Oct  29th, 2002   J. Apostolakis - test-V04-01-02
1722 --------------------------------                 1693 --------------------------------
1723 - Changed output of tests for small output ch    1694 - Changed output of tests for small output change (GeV->MeV)
1724                                                  1695 
1725 Oct  29th, 2002   J. Apostolakis - test-V04-0    1696 Oct  29th, 2002   J. Apostolakis - test-V04-01-02
1726 --------------------------------                 1697 --------------------------------
1727 - (Only changed and tagged test subdirectory)    1698 - (Only changed and tagged test subdirectory)
1728   Changed tests to use the new method SetChar    1699   Changed tests to use the new method SetChargeMomentumMass of
1729   PropagatorInField in order to be ready for     1700   PropagatorInField in order to be ready for its full use in
1730   G4PropagatorInField.                           1701   G4PropagatorInField.
1731   (A key problem at end-July was this non-pre    1702   (A key problem at end-July was this non-preparedness of the unit tests.)
1732                                                  1703 
1733 Jul  24th, 2002   G. Cosmo - field-V04-01-01     1704 Jul  24th, 2002   G. Cosmo - field-V04-01-01
1734 --------------------------                       1705 --------------------------
1735 - G4FieldManager[.hh.cc]: made fDefault_Delta    1706 - G4FieldManager[.hh.cc]: made fDefault_Delta_One_Step_Value and
1736   fDefault_Delta_Intersection_Val normal cons    1707   fDefault_Delta_Intersection_Val normal constants (not static) to
1737   resolve initialisation problems. Coworks wi    1708   resolve initialisation problems. Coworks with tag "geomvol-V04-01-01".
1738   Fixes problem report #383.                     1709   Fixes problem report #383.
1739                                                  1710 
1740 Jul  23rd, 2002   G. Cosmo - field-V04-01-00     1711 Jul  23rd, 2002   G. Cosmo - field-V04-01-00
1741 --------------------------                       1712 --------------------------
1742 - G4MagIntegratorDriver.cc: cleared warning o    1713 - G4MagIntegratorDriver.cc: cleared warning of unused variable.
1743   Protected variable 'nStpPr' with G4DEBUG_FI    1714   Protected variable 'nStpPr' with G4DEBUG_FIELD.
1744 - Updated reference outputs and some other up    1715 - Updated reference outputs and some other updates to unit tests.
1745                                                  1716 
1746 Jun  25th, 2002   J. Apostolakis - field-V04-    1717 Jun  25th, 2002   J. Apostolakis - field-V04-00-05
1747 --------------------------------                 1718 --------------------------------
1748 - G4ChordFinder.cc                               1719 - G4ChordFinder.cc
1749   In NewStep:  fixed case of stepTrial >> ste    1720   In NewStep:  fixed case of stepTrial >> stepTrialOld, to take large multiple - not small;
1750        (it was treated the same as stepTrial     1721        (it was treated the same as stepTrial << old)
1751   Added guard for stepTrial==0.0 in FindNextC    1722   Added guard for stepTrial==0.0 in FindNextChord
1752 - G4MagIntegratorDriver.cc                       1723 - G4MagIntegratorDriver.cc
1753   Added protection against error of 0.0 in Co    1724   Added protection against error of 0.0 in ComputeNewStepSize.
1754                                                  1725 
1755 - G4EquationOfMotion                             1726 - G4EquationOfMotion
1756   Made RightHandSide an inline method            1727   Made RightHandSide an inline method
1757   In GetFieldValue signature of Point is doub    1728   In GetFieldValue signature of Point is double[4], instead of double[3]
1758   Defined G4maximum_number_of_field_component    1729   Defined G4maximum_number_of_field_components as enum
1759                                                  1730 
1760 Jun   7th, 2002   J. Apostolakis - field-V04-    1731 Jun   7th, 2002   J. Apostolakis - field-V04-00-04
1761 --------------------------------                 1732 --------------------------------
1762  - G4Mag_SpinEqRhs.cc                            1733  - G4Mag_SpinEqRhs.cc
1763     o Fix to momentum component of Rhs.          1734     o Fix to momentum component of Rhs.
1764                                                  1735 
1765 May  31st, 2002   J. Apostolakis - field-V04-    1736 May  31st, 2002   J. Apostolakis - field-V04-00-03
1766 --------------------------------                 1737 --------------------------------
1767  - G4MagHelicalStepper.icc                       1738  - G4MagHelicalStepper.icc
1768     o Fix to LinearStep (correcting previous     1739     o Fix to LinearStep (correcting previous fix/cosmetic)
1769  - G4ChordFinder.cc                              1740  - G4ChordFinder.cc
1770     o Corrective behaviour for very small or     1741     o Corrective behaviour for very small or large changes of 'new step'
1771        [observed in complex 3-d fields (purgi    1742        [observed in complex 3-d fields (purging magnet),  or
1772                     approximate equations of     1743                     approximate equations of motion ]
1773  - G4MagIntegratorDriver                         1744  - G4MagIntegratorDriver
1774     o More information in debug printing (tan    1745     o More information in debug printing (tangent cosine, norm)
1775                                                  1746 
1776 May   7th, 2002   J. Apostolakis                 1747 May   7th, 2002   J. Apostolakis
1777 --------------------------------                 1748 --------------------------------
1778 - G4MagIntegratorDriver  -  ( on trunk )         1749 - G4MagIntegratorDriver  -  ( on trunk )
1779   * Fix to update the field track for steps s    1750   * Fix to update the field track for steps smaller than the chord finder's
1780 minstep.                                         1751 minstep.
1781                                                  1752 
1782                                                  1753 
1783 April 19th, 2002  J. Apostolakis   (not inclu    1754 April 19th, 2002  J. Apostolakis   (not included in tag field-V04-00-02)
1784 --------------------------------                 1755 --------------------------------
1785 - G4MagIntegratorDriver.hh,cc     (on trunk)     1756 - G4MagIntegratorDriver.hh,cc     (on trunk)
1786   * Bug fix:  last step can now only be trigg    1757   * Bug fix:  last step can now only be triggerred if x+h > x2.
1787   * Debugging methods improved.                  1758   * Debugging methods improved.
1788                                                  1759 
1789 May   7th, 2002   J. Apostolakis - field-V04-    1760 May   7th, 2002   J. Apostolakis - field-V04-00-02
1790 --------------------------------                 1761 --------------------------------
1791  Tag including only two changes below:           1762  Tag including only two changes below:
1792   - Putting aside the other fixes/changes (as    1763   - Putting aside the other fixes/changes (as the one above) to
1793 G4MagIntegratorDriver, tagging only the fix t    1764 G4MagIntegratorDriver, tagging only the fix to update the field track
1794 for steps smaller than the chord finder's min    1765 for steps smaller than the chord finder's minstep.
1795                                                  1766 
1796 May   7th, 2002   J. Apostolakis                 1767 May   7th, 2002   J. Apostolakis
1797 --------------------------------                 1768 --------------------------------
1798 - G4MagIntegratorDriver  -  **  branch ** on     1769 - G4MagIntegratorDriver  -  **  branch ** on 1.20 **
1799   * Fix to update the field track for steps s    1770   * Fix to update the field track for steps smaller than the chord finder's
1800 minstep.                                         1771 minstep.
1801                                                  1772 
1802 May   7th, 2002   J. Apostolakis                 1773 May   7th, 2002   J. Apostolakis
1803 --------------------------------                 1774 --------------------------------
1804 - G4MagIntegratorStepper                         1775 - G4MagIntegratorStepper
1805   * Changed RightHandSide from a virtual meth    1776   * Changed RightHandSide from a virtual method to an inline (non-virtual)
1806       method -- it is not and should not be c    1777       method -- it is not and should not be changed by derived classes.
1807                                                  1778 
1808 Mar 28th, 2002  J. Apostolakis - field-V04-00    1779 Mar 28th, 2002  J. Apostolakis - field-V04-00-01
1809 -----------------------                          1780 -----------------------
1810 - Fixed LinearStep in G4MagHelicalStepper (ex    1781 - Fixed LinearStep in G4MagHelicalStepper (expected unit direction),
1811     that had not been updated for new integra    1782     that had not been updated for new integration variable (momentum).
1812     --> found in testing helical steppers in     1783     --> found in testing helical steppers in BaBar setup,
1813          in region of negligible field.          1784          in region of negligible field.
1814                                                  1785 
1815 - Changed maximum number of steps in driver,     1786 - Changed maximum number of steps in driver,
1816     halving from 500/order to 250/order.         1787     halving from 500/order to 250/order.
1817                                                  1788 
1818 Mar 28th, 2002  J. Apostolakis                   1789 Mar 28th, 2002  J. Apostolakis
1819 -----------------------                          1790 -----------------------
1820 - Committed directory "OtherField" with examp    1791 - Committed directory "OtherField" with examples of fields,
1821     Delphi, Quadropole etc.                      1792     Delphi, Quadropole etc.
1822                                                  1793 
1823 - Updated outputs of testPropagateMagField fo    1794 - Updated outputs of testPropagateMagField for new version of source,
1824     that has 3rd test case.                      1795     that has 3rd test case.
1825                                                  1796 
1826 - Added new runs and outputs for testProElect    1797 - Added new runs and outputs for testProElectroMagField, with
1827     several steppers, and modified test scrip    1798     several steppers, and modified test script test.sh accordingly.
1828                                                  1799 
1829                                                  1800 
1830 Feb  2nd, 2002   V. Grichine                     1801 Feb  2nd, 2002   V. Grichine
1831 ------------------------                         1802 ------------------------
1832 Update of test/field02 to utilise new feature    1803 Update of test/field02 to utilise new features
1833   - for Electric Field, to signal that a fiel    1804   - for Electric Field, to signal that a field modifies the energy;
1834   - updating of time by integration, for time    1805   - updating of time by integration, for time dependent fields.
1835                                                  1806 
1836 Jan 10th, 2002  G. Cosmo - field-V04-00-00       1807 Jan 10th, 2002  G. Cosmo - field-V04-00-00
1837 ------------------------                         1808 ------------------------
1838 - Activated G4DEBUG_FIELD in GNUmakefile.        1809 - Activated G4DEBUG_FIELD in GNUmakefile.
1839                                                  1810 
1840 Jan 7th, 2002  J. Apostolakis                    1811 Jan 7th, 2002  J. Apostolakis
1841 -----------------------------                    1812 -----------------------------
1842 - G4MagHelicalStepper.cc: renamed local varia    1813 - G4MagHelicalStepper.cc: renamed local variables "*Momentum*" to "*Velocity*".
1843                                                  1814 
1844 Dec 4th, 2001  G. Cosmo - field-V03-02-08        1815 Dec 4th, 2001  G. Cosmo - field-V03-02-08
1845 -----------------------                          1816 -----------------------
1846 - Fixed interface to virtual functions in the    1817 - Fixed interface to virtual functions in the inheritance chain.
1847   Added 'virtual' qualifier to destructor and    1818   Added 'virtual' qualifier to destructor and GetFieldValue() for subclasses
1848   of G4Field which may act as base class for     1819   of G4Field which may act as base class for user-defined fields.
1849   Modified files: G4MagneticField.hh, G4Unifo    1820   Modified files: G4MagneticField.hh, G4UniformElectricField[.hh.cc],
1850                   G4UniformMagField.hh.          1821                   G4UniformMagField.hh.
1851 - G4ChordFinder.cc: the unphysical curve leng    1822 - G4ChordFinder.cc: the unphysical curve length exception has been moved to
1852   inside #ifdef G4DEBUG_FIELD. Other #ifdef r    1823   inside #ifdef G4DEBUG_FIELD. Other #ifdef renamed to G4DEBUG_FIELD.
1853 - G4LineSection[.hh.cc]: correction for A=B w    1824 - G4LineSection[.hh.cc]: correction for A=B when the distance from P to A
1854   is returned (V.Grichine).                      1825   is returned (V.Grichine).
1855                                                  1826 
1856 Nov 28th, 2001  J. Apostolakis - field-V03-02    1827 Nov 28th, 2001  J. Apostolakis - field-V03-02-07
1857 ------------------------------                   1828 ------------------------------
1858 G4FieldManager                                   1829 G4FieldManager
1859 - Added fFieldChangesEnergy data member and g    1830 - Added fFieldChangesEnergy data member and get/set methods
1860  ( required to allow transportation to know h    1831  ( required to allow transportation to know how to calculate end-time,
1861    enabling the integration of time only for     1832    enabling the integration of time only for electric fields. )
1862                                                  1833 
1863 Nov 28th, 2001  J. Apostolakis - field-V03-02    1834 Nov 28th, 2001  J. Apostolakis - field-V03-02-06
1864 ------------------------------                   1835 ------------------------------
1865 Small fixes only:                                1836 Small fixes only:
1866                                                  1837 
1867 G4CashKarpRKF45                                  1838 G4CashKarpRKF45
1868 - fixed deletion of unassigned pointer/array     1839 - fixed deletion of unassigned pointer/array in destructor. (-> Volodya Velev)
1869                                                  1840 
1870 G4EqMagElectricField                             1841 G4EqMagElectricField
1871 - bug fixed in the formula for inverse veloci    1842 - bug fixed in the formula for inverse velocity             (-> V. Grichine)
1872                                                  1843 
1873 Nov 21st, 2001  G. Cosmo - field-V03-02-05       1844 Nov 21st, 2001  G. Cosmo - field-V03-02-05
1874 ------------------------                         1845 ------------------------
1875 - Protected verbose warnings with G4FIELD_DEB    1846 - Protected verbose warnings with G4FIELD_DEBUG flag in G4ChordFinder.cc
1876   (V.Grichine).                                  1847   (V.Grichine).
1877 - Replaced G4DEBUG with G4DEBUG_FIELD in G4Ma    1848 - Replaced G4DEBUG with G4DEBUG_FIELD in G4MagIntegratorDriver.cc.
1878 - Updates to unit test field02.                  1849 - Updates to unit test field02.
1879                                                  1850 
1880 Nov 13th, 2001  G. Cosmo - field-V03-02-04       1851 Nov 13th, 2001  G. Cosmo - field-V03-02-04
1881 ------------------------                         1852 ------------------------
1882 - Removed warnings on gcc-2.95.2.                1853 - Removed warnings on gcc-2.95.2.
1883 - Included unit tests field01, field02, field    1854 - Included unit tests field01, field02, field03.
1884                                                  1855 
1885 Nov 9th, 2001  J. Apostolakis - field-V03-02-    1856 Nov 9th, 2001  J. Apostolakis - field-V03-02-03
1886 -----------------------------                    1857 -----------------------------
1887 Motivated by the use case of an Electric Fiel    1858 Motivated by the use case of an Electric Field,
1888  - in order to achieve reasonable accuracy in    1859  - in order to achieve reasonable accuracy in time integration,
1889  - and to enable fields that vary with the gl    1860  - and to enable fields that vary with the global time)
1890 we (John Ap. and V. Grichine) changed the fol    1861 we (John Ap. and V. Grichine) changed the following:
1891                                                  1862 
1892 - Modified G4Field to allow the time in the G    1863 - Modified G4Field to allow the time in the GetFieldValue method
1893      - as 4th component of the "position" arr    1864      - as 4th component of the "position" array.
1894                                                  1865 
1895 - Modified EquationOfMotion to provide the ti    1866 - Modified EquationOfMotion to provide the time to the GetFieldValue method
1896    of G4Field                                    1867    of G4Field
1897       * as the 4th component of a position /     1868       * as the 4th component of a position / time  4-array
1898       * in place of only position as a 3-arry    1869       * in place of only position as a 3-arry
1899                                                  1870 
1900 - Added the global time as variable to be int    1871 - Added the global time as variable to be integrated over in the
1901    case of an Electric Field                     1872    case of an Electric Field
1902                                                  1873 
1903 Support for these modifications is required i    1874 Support for these modifications is required in G4Transportation.
1904                                                  1875 
1905 (Better support will require either              1876 (Better support will require either
1906  - a modification in G4FieldTrack to indicate    1877  - a modification in G4FieldTrack to indicate whether the time has been
1907     integrated or not.                           1878     integrated or not.
1908  - or additionally making the time calculatio    1879  - or additionally making the time calculation a property of G4FieldTrack,
1909     bring in code to do it in from G4Transpor    1880     bring in code to do it in from G4Transportation.)
1910                                                  1881 
1911                                                  1882 
1912 Nov  8th, 2001  J. Apostolakis - field-V03-02    1883 Nov  8th, 2001  J. Apostolakis - field-V03-02-02
1913 ------------------------                         1884 ------------------------
1914 - Introduced several changes in G4MagIntegrat    1885 - Introduced several changes in G4MagIntegratorDriver.
1915                                                  1886 
1916    It now respects its minimum driver step si    1887    It now respects its minimum driver step size in AccurateAdvance.
1917      * whereas before it did not.                1888      * whereas before it did not.
1918                                                  1889 
1919    Modified maximum number of steps, lowering    1890    Modified maximum number of steps, lowering by factor of 10.
1920      -> it should reduce the time spent integ    1891      -> it should reduce the time spent integrating low energy particles,
1921    in some cases where it is unneccessary.       1892    in some cases where it is unneccessary.
1922                                                  1893 
1923    Protected printing of (nearly?) all warnin    1894    Protected printing of (nearly?) all warnings with a G4DEBUG_FIELD  #ifdef.
1924                                                  1895 
1925                                                  1896 
1926 Nov 05th, 2001  G. Cosmo - field-V03-02-01       1897 Nov 05th, 2001  G. Cosmo - field-V03-02-01
1927 ------------------------                         1898 ------------------------
1928 - Fixed trivial warnings on Linux-g++.           1899 - Fixed trivial warnings on Linux-g++.
1929                                                  1900 
1930 Aug 27th, 2001  J. Apostolakis - field-V03-02    1901 Aug 27th, 2001  J. Apostolakis - field-V03-02-00
1931 ------------------------------                   1902 ------------------------------
1932 Tagged last change.                              1903 Tagged last change.
1933 This tag is utilised in transport-V03-02-01 (    1904 This tag is utilised in transport-V03-02-01 (which requires it).
1934                                                  1905 
1935 Aug 16th, 2001  J. Apostolakis                   1906 Aug 16th, 2001  J. Apostolakis
1936 ------------------------------                   1907 ------------------------------
1937 G4ChordFinder:                                   1908 G4ChordFinder:
1938  Added method to erase/reset the state of the    1909  Added method to erase/reset the state of the StepEstimate.
1939  This is unwanted internal state that was car    1910  This is unwanted internal state that was carried between tracks and
1940      events as a side effect.                    1911      events as a side effect.
1941                                                  1912 
1942  Calling this at the start of each track, it     1913  Calling this at the start of each track, it is now possible to
1943  eliminate a non-repeatability that was possi    1914  eliminate a non-repeatability that was possible due to this.
1944     ( It has been observed in particular in v    1915     ( It has been observed in particular in vaccuum. )
1945                                                  1916 
1946 May 23rd, 2001  J. Apostolakis - field-V03-01    1917 May 23rd, 2001  J. Apostolakis - field-V03-01-02
1947 ------------------------------                   1918 ------------------------------
1948 - Added Exception to G4RKG3Stepper constructo    1919 - Added Exception to G4RKG3Stepper constructor: the class does not work
1949                                                  1920 
1950 May 23rd, 2001  J. Apostolakis - field-V03-01    1921 May 23rd, 2001  J. Apostolakis - field-V03-01-01
1951 ------------------------------                   1922 ------------------------------
1952 - Fixed G4FieldManager constructors to give d    1923 - Fixed G4FieldManager constructors to give default values to delta
1953   parameters.                                    1924   parameters.
1954                                                  1925 
1955 - Updated testPropagateSpin (it now compiles)    1926 - Updated testPropagateSpin (it now compiles),
1956    and some outputs of testPropagateMagField     1927    and some outputs of testPropagateMagField (1 to 5)
1957                                                  1928 
1958                                                  1929 
1959 Apr 12th, 2001  P. Gumplinger - field-V03-01-    1930 Apr 12th, 2001  P. Gumplinger - field-V03-01-00
1960 -----------------------------                    1931 -----------------------------
1961 - Updated G4Mag_SpinEqRhs.hh and G4Mag_SpinEq    1932 - Updated G4Mag_SpinEqRhs.hh and G4Mag_SpinEqRhs.cc for correction
1962   to spin tracking.                              1933   to spin tracking.
1963                                                  1934 
1964 Apr 04th, 2001  G. Cosmo - field-V03-00-05       1935 Apr 04th, 2001  G. Cosmo - field-V03-00-05
1965 ------------------------                         1936 ------------------------
1966 - G4FieldTrack.icc: fixed pedantic warnings o    1937 - G4FieldTrack.icc: fixed pedantic warnings on Linux-g++.
1967                                                  1938 
1968 Mar 23rd, 2001  J. Apostolakis - field-V03-00    1939 Mar 23rd, 2001  J. Apostolakis - field-V03-00-04
1969 ------------------------------                   1940 ------------------------------
1970 - Electric Field unit test now works: test ru    1941 - Electric Field unit test now works: test runs until completion.
1971    Test outputs saved (on Linux).                1942    Test outputs saved (on Linux).
1972                                                  1943 
1973 - Fixed src/G4UniformElectricField.cc to set     1944 - Fixed src/G4UniformElectricField.cc to set correct field components
1974                                       (compat    1945                                       (compatible with Equation of Motion
1975                                        G4EqMa    1946                                        G4EqMagElectricField )
1976                                                  1947 
1977 - Tidied G4FieldTrack                            1948 - Tidied G4FieldTrack
1978    * deleted obsolete methods Set/Get Momentu    1949    * deleted obsolete methods Set/Get MomentumModulus() and its data member.
1979    * in constructor to set the value of the s    1950    * in constructor to set the value of the spin to (0.0, 0.0, 0.0)
1980           if pSpin is null.  (It was undefine    1951           if pSpin is null.  (It was undefined.)
1981                                                  1952 
1982 Mar 23rd, 2001  J. Apostolakis - field-V03-00    1953 Mar 23rd, 2001  J. Apostolakis - field-V03-00-03
1983 ------------------------------                   1954 ------------------------------
1984 - Fixed (hacked) CashKarp to work using Auxil    1955 - Fixed (hacked) CashKarp to work using Auxiliary Stepper.
1985                                                  1956 
1986 - Modified G4MagIntegratorStepper                1957 - Modified G4MagIntegratorStepper
1987      to use pointer to G4EquationOfMotion        1958      to use pointer to G4EquationOfMotion
1988             instead of G4Mag_EqRhs               1959             instead of G4Mag_EqRhs
1989                                                  1960 
1990 - Design iteration appears neccessary            1961 - Design iteration appears neccessary
1991                                                  1962 
1992 Mar 23rd, 2001  J. Apostolakis - field-V03-00    1963 Mar 23rd, 2001  J. Apostolakis - field-V03-00-02
1993 ------------------------------                   1964 ------------------------------
1994 - Fixed G4MagHelicalStepper::AdvanceHelix for    1965 - Fixed G4MagHelicalStepper::AdvanceHelix for momentum, allowing
1995     the possibility of (correct) use of all H    1966     the possibility of (correct) use of all Helical Steppers.
1996                                                  1967 
1997 - test/testProElectroMagField.cc updated for     1968 - test/testProElectroMagField.cc updated for momentum.
1998     (Not yet updated: Spin tests)                1969     (Not yet updated: Spin tests)
1999                                                  1970 
2000                                                  1971 
2001 Mar 19th, 2001  J. Apostolakis - field-V03-00    1972 Mar 19th, 2001  J. Apostolakis - field-V03-00-01
2002 ------------------------------                   1973 ------------------------------
2003 - Tagging the modification of several classes    1974 - Tagging the modification of several classes to integrate in momentum*c_light
2004     instead of velocity.                         1975     instead of velocity.
2005   Reason for change:  Velocity integration ca    1976   Reason for change:  Velocity integration can result in superluminar
2006     velocities,  due to arithmetic inaccuraci    1977     velocities,  due to arithmetic inaccuracies.
2007   Classes modified:                              1978   Classes modified:
2008     G4FieldTrack,   (Changed components 3,4,5    1979     G4FieldTrack,   (Changed components 3,4,5 of SixVector to Momentum,
2009     G4Mag_EqRhs, G4Mag_UsualEqRhs, G4EqMagEle    1980     G4Mag_EqRhs, G4Mag_UsualEqRhs, G4EqMagElectricField
2010                                                  1981 
2011 Feb 20th, 2001  J. Apostolakis                   1982 Feb 20th, 2001  J. Apostolakis
2012                                                  1983 
2013 - Modified several classes to integrate in mo    1984 - Modified several classes to integrate in momentum instead of velocity.
2014                                                  1985 
2015  G4FieldTrack:                                   1986  G4FieldTrack:
2016      Changed components 3,4,5 of SixVector to    1987      Changed components 3,4,5 of SixVector to Momentum,
2017      Modified constructor                        1988      Modified constructor
2018      Added energy calculation to "LoadFromArr    1989      Added energy calculation to "LoadFromArray" method
2019      GetEnergy method is now implemented.        1990      GetEnergy method is now implemented.
2020      Deleted obsolete (old) method names for     1991      Deleted obsolete (old) method names for Curve and Position. New have "Get"
2021                                                  1992 
2022  G4ChordFinder                                   1993  G4ChordFinder
2023      Renamed old-method names of Field Track     1994      Renamed old-method names of Field Track to new ones.
2024                                                  1995 
2025 Jan 29th, 2001  G. Cosmo - field-V03-00-00       1996 Jan 29th, 2001  G. Cosmo - field-V03-00-00
2026 -------------------------                        1997 -------------------------
2027                                                  1998 
2028 - Minor fix to G4MagneticField.hh: added expl    1999 - Minor fix to G4MagneticField.hh: added explicit call to G4Field() in
2029   copy constructor. Fixes report #205.           2000   copy constructor. Fixes report #205.
2030                                                  2001 
2031 Nov 20th, 2000  G. Cosmo - field-V02-00-02       2002 Nov 20th, 2000  G. Cosmo - field-V02-00-02
2032                                                  2003 
2033 - Fixes to remove warnings from "-Wall -ansi     2004 - Fixes to remove warnings from "-Wall -ansi -pedantic" g++ compiler options:
2034   o commented out variables declared and not     2005   o commented out variables declared and not used.
2035   o fixed declaration of variables used befor    2006   o fixed declaration of variables used before being initialised.
2036   o fixed order of initialisation of member d    2007   o fixed order of initialisation of member data in constructors.
2037   o fixed usage of unsigned-int (size_t) for     2008   o fixed usage of unsigned-int (size_t) for array indeces.
2038                                                  2009 
2039 Nov 9th, 2000  G. Cosmo - field-V02-00-01        2010 Nov 9th, 2000  G. Cosmo - field-V02-00-01
2040                                                  2011 
2041 - G4FieldManager: added check on existence of    2012 - G4FieldManager: added check on existence of allocated fChordFinder
2042   in CreateChordFinder(G4MagneticField*) meth    2013   in CreateChordFinder(G4MagneticField*) method.
2043                                                  2014 
2044 Nov 1st, 2000  G. Cosmo - field-V02-00-00        2015 Nov 1st, 2000  G. Cosmo - field-V02-00-00
2045                                                  2016 
2046 - QA code revision and cleanup (+fixes from C    2017 - QA code revision and cleanup (+fixes from CodeWizard filtering):
2047   o Added (private) declarations of copy cons    2018   o Added (private) declarations of copy constructor and assignment operator
2048     where needed.                                2019     where needed.
2049   o Added "const" qualifier to accessor metho    2020   o Added "const" qualifier to accessor methods, wherever needed.
2050   o Added equality check on operator= where n    2021   o Added equality check on operator= where needed.
2051   o Made destructor "virtual" for classes hav    2022   o Made destructor "virtual" for classes having virtual methods,
2052     wherever missing.                            2023     wherever missing.
2053   o Changed virtual functions to non-inline w    2024   o Changed virtual functions to non-inline wherever's the case.
2054   o Changed return value to be "const" pointe    2025   o Changed return value to be "const" pointer to functions:
2055     - G4EquationOfMotion::GetFieldObj()          2026     - G4EquationOfMotion::GetFieldObj()
2056     - G4FieldManager::GetDetectorField()         2027     - G4FieldManager::GetDetectorField()
2057     - G4MagIntegratorDriver::GetStepper()        2028     - G4MagIntegratorDriver::GetStepper()
2058   o Fixed and corrected signature to G4MagInt    2029   o Fixed and corrected signature to G4MagIntegratorDriver::SetHmin().
2059   o Added "inline" qualifier to methods' decl    2030   o Added "inline" qualifier to methods' declarations.
2060   o General cosmetics                            2031   o General cosmetics
2061                                                  2032 
2062 Jun 2nd, 2000  J. Apostolakis                    2033 Jun 2nd, 2000  J. Apostolakis
2063 - G4FieldManager[.hh.icc]                        2034 - G4FieldManager[.hh.icc]
2064   o Added DeltaIntersection and DeltaOneStep     2035   o Added DeltaIntersection and DeltaOneStep to FieldManager: added
2065     Get/Set methods and SetAccuraciesWithDelt    2036     Get/Set methods and SetAccuraciesWithDeltaOneStep().
2066                                                  2037 
2067 May 31st, 2000  J. Apostolakis - field-V01-01    2038 May 31st, 2000  J. Apostolakis - field-V01-01-03
2068                                                  2039 
2069 include/G4FieldManager.hh,icc                    2040 include/G4FieldManager.hh,icc
2070   o Moved Delta Intersection and Delta One St    2041   o Moved Delta Intersection and Delta One Step to FieldManager
2071      (from Propagator in Field),  to allow th    2042      (from Propagator in Field),  to allow them to differ over the detector.
2072                                                  2043 
2073 May 11th, 2000  J. Apostolakis - field-V01-01    2044 May 11th, 2000  J. Apostolakis - field-V01-01-02
2074                                                  2045 
2075 - G4ChordFinder[.hh.cc]                          2046 - G4ChordFinder[.hh.cc]
2076   o Modified method for finding new trial ste    2047   o Modified method for finding new trial step.
2077     New method assumes a quadratic relationsh    2048     New method assumes a quadratic relationship between step-length and d_chord:
2078             d_chord  proportional  to  step-l    2049             d_chord  proportional  to  step-lenght ^ 2
2079   o Added two small refinement in order to av    2050   o Added two small refinement in order to avoid unneccesary extra step due to
2080     small numerical inaccuracies in estimatio    2051     small numerical inaccuracies in estimation:
2081       FindNextChord                              2052       FindNextChord
2082           to first step       use  (1-0.001)     2053           to first step       use  (1-0.001) * last-step-estimate
2083       New Step:                                  2054       New Step:
2084           to subsequent step  use    trial_st    2055           to subsequent step  use    trial_step = 0.98 * estimate
2085                                                  2056 
2086 May 10th, 2000  G. Cosmo                         2057 May 10th, 2000  G. Cosmo
2087                                                  2058 
2088 - G4MagneticField.hh: minor fix to dummy impl    2059 - G4MagneticField.hh: minor fix to dummy implementation of assignment
2089   operator.                                      2060   operator.
2090                                                  2061 
2091 May    9th, 2000   J. Apostolakis - field-V01    2062 May    9th, 2000   J. Apostolakis - field-V01-01-01
2092                                                  2063 
2093 - G4MagErrorStepper:                             2064 - G4MagErrorStepper:
2094     Modified DistChord to check whether the c    2065     Modified DistChord to check whether the chord endpoint are the same point.
2095                                                  2066 
2096 - G4RKG3_Stepper:                                2067 - G4RKG3_Stepper:
2097     Deleted error message from StepNoErr, as     2068     Deleted error message from StepNoErr, as it is used in Stepper.
2098                                                  2069 
2099 - G4MagIntegratorDriver:                         2070 - G4MagIntegratorDriver:
2100     Changed the condition for the debug outpu    2071     Changed the condition for the debug output  (~cosmetic)
2101                                                  2072 
2102                                                  2073 
2103 April 27th, 2000   G. Cosmo                      2074 April 27th, 2000   G. Cosmo
2104                                                  2075 
2105 - Reorganised comments for the Software Refer    2076 - Reorganised comments for the Software Reference Manual.
2106 - Moved inlined definition to .icc files, whe    2077 - Moved inlined definition to .icc files, where needed.
2107   Created: G4ChordFinder.icc and G4FieldManag    2078   Created: G4ChordFinder.icc and G4FieldManager.icc.
2108                                                  2079 
2109 April 13th, 2000   J. Apostolakis - field-V01    2080 April 13th, 2000   J. Apostolakis - field-V01-01-00
2110                                                  2081 
2111 - Modified signature to function DumbStepper(    2082 - Modified signature to function DumbStepper() in classes:
2112   G4HelixExplicitEuler, G4HelixHeum, G4HelixI    2083   G4HelixExplicitEuler, G4HelixHeum, G4HelixImplicitEuler,
2113   G4HelixSimpleRunge and G4MagHelicalStepper.    2084   G4HelixSimpleRunge and G4MagHelicalStepper.
2114 - Modified signature and implementation of fu    2085 - Modified signature and implementation of function MagFieldEvaluate()
2115   in G4MagHelicalStepper, to use Field (as Th    2086   in G4MagHelicalStepper, to use Field (as ThreeVector) in place of dydx.
2116 - Made Richardson extrapolation optional (it     2087 - Made Richardson extrapolation optional (it is unclear if
2117   it offers benefit) in G4MagHelicalStepper.     2088   it offers benefit) in G4MagHelicalStepper.
2118 - Updated unit test testPropagateMagField and    2089 - Updated unit test testPropagateMagField and reference output.
2119 - G4LineSection: fixes to prevent divisions b    2090 - G4LineSection: fixes to prevent divisions by 0. and sqrt(<0)
2120   (V.Grichine).                                  2091   (V.Grichine).
2121                                                  2092 
2122 January  19th, 2000   G. Cosmo - field-V01-00    2093 January  19th, 2000   G. Cosmo - field-V01-00-00
2123                                                  2094 
2124 Syncronized versioning of files with HEAD aft    2095 Syncronized versioning of files with HEAD after ISO-C++ migration
2125 (essentially CVS header changes).                2096 (essentially CVS header changes).
2126                                                  2097 
2127 December  7th, 1999   J. Apostolakis - field-    2098 December  7th, 1999   J. Apostolakis - field-V00-01-01a
2128                                                  2099 
2129 For negative or very small curve lengths (h)     2100 For negative or very small curve lengths (h) we suppress writing an error
2130 (about the distance of endpoints being furthe    2101 (about the distance of endpoints being further than the curve length),
2131 as it is meaningless.                            2102 as it is meaningless.
2132                                                  2103 
2133 November 23rd, 1999   J. Apostolakis - field-    2104 November 23rd, 1999   J. Apostolakis - field-V00-01-01
2134                                                  2105 
2135 Tagged this sub-category's state in geometry-    2106 Tagged this sub-category's state in geometry-V00-01-01
2136                                                  2107 
2137                                                  2108 
2138 July      6th, 1999   J. Apostolakis - field-    2109 July      6th, 1999   J. Apostolakis - field-01-00-07
2139                                                  2110 
2140 These fixes and those in field-01-00-06 and f    2111 These fixes and those in field-01-00-06 and field-01-00-06a all come
2141 from the need to cope with the imprecision of    2112 from the need to cope with the imprecision of the integration, and its
2142 interaction with paths that are rather straig    2113 interaction with paths that are rather straight.
2143                                                  2114 
2144 G4MagIntegrationDriver:                          2115 G4MagIntegrationDriver:
2145  i) AccurateAdvance now that the chord distan    2116  i) AccurateAdvance now that the chord distance is smaller than the curve len-
2146 gth (times 1+epsilon).                           2117 gth (times 1+epsilon).
2147                                                  2118 
2148 ii) OneGoodStep and QuickAdvance considers th    2119 ii) OneGoodStep and QuickAdvance considers the error of the velocity as well as
2149 the error of the position - and ensure that b    2120 the error of the position - and ensure that both relative errors are within
2150 the "eps" maximum given.                         2121 the "eps" maximum given.
2151                                                  2122 
2152 G4ChordFinder:                                   2123 G4ChordFinder:
2153   Having found that the curve_length vs ABdis    2124   Having found that the curve_length vs ABdist disrepancy has its basis in
2154 the imprecision of the integration:              2125 the imprecision of the integration:
2155   i) Modified the exception in this case to h    2126   i) Modified the exception in this case to happen only for very large
2156    relative disrepancies ( 10 * eps ).           2127    relative disrepancies ( 10 * eps ).
2157  ii) Undertaken a default corrective action i    2128  ii) Undertaken a default corrective action in all other cases
2158 Note that this disrepancy only happens for ve    2129 Note that this disrepancy only happens for very straight sections of track -
2159 ie step lengths much smaller than the curvatu    2130 ie step lengths much smaller than the curvature of the track.
2160                                                  2131 
2161 July      1st, 1999   J. Apostolakis - field-    2132 July      1st, 1999   J. Apostolakis - field-01-00-06a
2162                                                  2133 
2163 In order to cope with the anomalous condition    2134 In order to cope with the anomalous condition created by candidate fix
2164 in G4PropagatorInField,  we ensure that the f    2135 in G4PropagatorInField,  we ensure that the fraction_AE is always between
2165 0 and 1.0.  (giving it a default value of 0.5    2136 0 and 1.0.  (giving it a default value of 0.5 whenever it is wrong).
2166 ( in G4ChordFinder::ApproxCurvePointV )          2137 ( in G4ChordFinder::ApproxCurvePointV )
2167                                                  2138 
2168 June     29th, 1999   J. Apostolakis - field-    2139 June     29th, 1999   J. Apostolakis - field-01-00-06
2169                                                  2140 
2170   I re-instated a check on whether the input     2141   I re-instated a check on whether the input distance along the curve between
2171 the two input curve points is truly greater t    2142 the two input curve points is truly greater than their linear distance.
2172 ( in G4ChordFinder::ApproxCurvePointV )          2143 ( in G4ChordFinder::ApproxCurvePointV )
2173                                                  2144 
2174 The condition that prints out a warning messa    2145 The condition that prints out a warning message has been altered to
2175 take into account the case of a very small fi    2146 take into account the case of a very small final interval.
2176 ( in G4MagInt_Driver::AccurateAdvance )          2147 ( in G4MagInt_Driver::AccurateAdvance )
2177                                                  2148 
2178 June     ??th, 1999   J. Apostolakis - field-    2149 June     ??th, 1999   J. Apostolakis - field-01-00-05
2179                                                  2150 
2180 The condition that prints out a warning messa    2151 The condition that prints out a warning message was changed to delete
2181 an incorrect comparison.                         2152 an incorrect comparison.
2182 ( in G4MagInt_Driver::AccurateAdvance )          2153 ( in G4MagInt_Driver::AccurateAdvance )
2183                                                  2154 
2184 April    19th, 1999   J. Apostolakis - field-    2155 April    19th, 1999   J. Apostolakis - field-01-00-04
2185                                                  2156 
2186 G4MagErrorStepper: Cosmetic changes to name o    2157 G4MagErrorStepper: Cosmetic changes to name of data members
2187                                                  2158 
2188 March     4th, 1999   J. Apostolakis - field-    2159 March     4th, 1999   J. Apostolakis - field-01-00-03
2189                                                  2160 
2190 Corrected delete statement of arrays to use '    2161 Corrected delete statement of arrays to use 'delete[]' instead of simple delete
2191 in destructors of 2 steppers (G4CashKarpRKF45    2162 in destructors of 2 steppers (G4CashKarpRKF45, G4SimpleHeum)
2192                                                  2163 
2193 February 17th, 1999   J. Apostolakis -  field    2164 February 17th, 1999   J. Apostolakis -  field-01-00-02
2194                                                  2165 
2195  Moved G4PropagatorInField files to geometry/    2166  Moved G4PropagatorInField files to geometry/volumes.
2196  Updated GNUmakefile not to depend on geometr    2167  Updated GNUmakefile not to depend on geometry/volumes anymore.
2197    -> the known circular dependency is remove    2168    -> the known circular dependency is removed
2198                                                  2169 
2199                                                  2170 
2200 February 12th, 1999   J. Apostolakis -  field    2171 February 12th, 1999   J. Apostolakis -  field-spin1-works1     (act Feb17)
2201                                                  2172 
2202   A tag that contains the first version that     2173   A tag that contains the first version that worked with spin (in Peter G.'s
2203 directory).   G4PropagateInSpin is still in t    2174 directory).   G4PropagateInSpin is still in this version.  A small change
2204 in a branch of the header file was needed.       2175 in a branch of the header file was needed.
2205                                                  2176 
2206                                                  2177 
2207 February 10th, 1999   J. Apostolakis             2178 February 10th, 1999   J. Apostolakis
2208                                                  2179 
2209 All the following changes are needed for ener    2180 All the following changes are needed for energy integration also:
2210                                                  2181 
2211 G4ChordFinder now passes to the constructed d    2182 G4ChordFinder now passes to the constructed driver the number of variables.
2212 Because of the need for the stepper to know a    2183 Because of the need for the stepper to know about it in its Abstract interface
2213                                                  2184 
2214 -> Moved theNumberOfVariables  from derived c    2185 -> Moved theNumberOfVariables  from derived class G4MagErrorStepper
2215                                to base class     2186                                to base class G4MagIntegratorStepper
2216                                                  2187 
2217 As a consequense the classes that derived fro    2188 As a consequense the classes that derived from G4MagIntegratorStepper directly
2218 were changed: G4CashKarpRKF45, G4MagHelicalSt    2189 were changed: G4CashKarpRKF45, G4MagHelicalStepper,
2219                                                  2190 
2220                                                  2191 
2221 February  9th, 1999    J. Apostolakis            2192 February  9th, 1999    J. Apostolakis
2222                                                  2193 
2223 Equation of Motion:                              2194 Equation of Motion:
2224 G4MagEqRhs.hh  Made SetChargeMomentumMass vir    2195 G4MagEqRhs.hh  Made SetChargeMomentumMass virtual, so that G4Mag_SpinEqRhs
2225                  can initialise its constants    2196                  can initialise its constants too.
2226                                                  2197 
2227                                                  2198 
2228 February  9th, 1999   P. Gumplinger              2199 February  9th, 1999   P. Gumplinger
2229                                                  2200 
2230 Added Equation of Motion for Spin in Magnetic    2201 Added Equation of Motion for Spin in Magnetic Field.
2231                                                  2202 
2232                                                  2203 
2233 February 17th, 1999   J. Apostolakis  -  fiel    2204 February 17th, 1999   J. Apostolakis  -  field-01-00-01
2234   --->  date is correct, made sure that tag d    2205   --->  date is correct, made sure that tag does not include above fixes!
2235                                                  2206 
2236  Moved G4PropagatorInField files to geometry/    2207  Moved G4PropagatorInField files to geometry/volumes.
2237  Updated GNUmakefile not to depend on geometr    2208  Updated GNUmakefile not to depend on geometry/volumes anymore.
2238    -> the known circular dependency is remove    2209    -> the known circular dependency is removed
2239                                                  2210 
2240                                                  2211 
2241 ---------------------------------------------    2212 ---------------------------------------------------------------------------
2242     ------    Geant 4  Production Release   -    2213     ------    Geant 4  Production Release   ------------
2243 ---------------------------------------------    2214 --------------------------------------------------------------------------
2244 Nov   19th, 1998   J. Apostolakis  -  field-0    2215 Nov   19th, 1998   J. Apostolakis  -  field-00-04-01head ===> R+D version only
2245                                                  2216 
2246  G4PropagatorInField files modified:             2217  G4PropagatorInField files modified:
2247                                                  2218 
2248    - to store the last safety computed and it    2219    - to store the last safety computed and its origin.
2249    - to give them to a requester                 2220    - to give them to a requester
2250 ---------------------------------------------    2221 ------------------------------------------------------------------
2251                                                  2222 
2252 Nov   19th, 1998   J. Apostolakis  -  field-0    2223 Nov   19th, 1998   J. Apostolakis  -  field-00-03-03b
2253                                                  2224 
2254  Subtle fix to interface of G4UniformMagField    2225  Subtle fix to interface of G4UniformMagField::GetFieldValue
2255          ( that tripped Visual C++ )             2226          ( that tripped Visual C++ )
2256                                                  2227 
2257  G4PropagatorInField:  added printing method     2228  G4PropagatorInField:  added printing method for verboseness.
2258                                                  2229 
2259 Nov   19th, 1998   J. Apostolakis  -  field-0    2230 Nov   19th, 1998   J. Apostolakis  -  field-00-03-03a
2260                                                  2231 
2261    Steppers:  Fixed instance variables constr    2232    Steppers:  Fixed instance variables construction (SimpleRunge)
2262               and clash of names in CashKarp:    2233               and clash of names in CashKarp::StepWithEstimate
2263                                                  2234 
2264    Added post-const to all Field classes for     2235    Added post-const to all Field classes for
2265            void GetFieldValue(const G4double     2236            void GetFieldValue(const G4double yTrack[] ,
2266                                  G4double B[]    2237                                  G4double B[]      ) const ;
2267                                                  2238 
2268    Added SetFieldValue methods to UniformMagF    2239    Added SetFieldValue methods to UniformMagField
2269                                                  2240 
2270    Added GetConstantFieldValue() methods to U    2241    Added GetConstantFieldValue() methods to Uniform Mag & Electric Fields
2271                                                  2242 
2272                                                  2243 
2273 Nov   19th, 1998   J. Apostolakis  -  field-0    2244 Nov   19th, 1998   J. Apostolakis  -  field-00-03-03
2274                                                  2245 
2275    Fixes to Propagate and Steppers               2246    Fixes to Propagate and Steppers
2276                                                  2247 
2277 Nov   19th, 1998   J. Apostolakis  -  field-0    2248 Nov   19th, 1998   J. Apostolakis  -  field-00-03-02
2278                                                  2249 
2279    Minor corrections  (???)                      2250    Minor corrections  (???)
2280                                                  2251 
2281 Nov   19th, 1998   J. Apostolakis  -  field-0    2252 Nov   19th, 1998   J. Apostolakis  -  field-00-03-02
2282                                                  2253 
2283    Major development to allow Electric Field     2254    Major development to allow Electric Field
2284                                                  2255 
2285                                                  2256 
2286                                                  2257 
2287 June  17th, 1998   J. Apostolakis  -  magfiel    2258 June  17th, 1998   J. Apostolakis  -  magfield-06-03
2288                                                  2259 
2289  Modified Files:                                 2260  Modified Files:
2290         include/G4PropagatorInField.hh           2261         include/G4PropagatorInField.hh
2291             src/G4PropagatorInField.cc           2262             src/G4PropagatorInField.cc
2292            test/testPropagateInField.cc          2263            test/testPropagateInField.cc
2293 ---------------------------------------------    2264 ----------------------------------------------------------------------
2294                                                  2265 
2295  1)  Added an assertion after each call to Lo    2266  1)  Added an assertion after each call to LocateGlobalPointAndSetup.
2296      It checks that the located volume is equ    2267      It checks that the located volume is equal to the current volume.
2297      If this check fails, the Propagator does    2268      If this check fails, the Propagator does not know how to continue.
2298                                                  2269 
2299  2)  Added an argument  to ComputeStep method    2270  2)  Added an argument  to ComputeStep method of G4PropagatorInField.
2300   The new volume argument is used to check th    2271   The new volume argument is used to check the current volume during the step.
2301                                                  2272 
2302  3)  When G4Navigator's ComputeStep returned     2273  3)  When G4Navigator's ComputeStep returned  stepLength==stepRequested,  this
2303 used to be treated as a failure to intersect.    2274 used to be treated as a failure to intersect.  This is incorrect.
2304                                                  2275 
2305     stepLength==stepRequested is an intersect    2276     stepLength==stepRequested is an intersection,
2306       so I am now treating it as such in each    2277       so I am now treating it as such in each comparison (of 3).
2307       Ignoring it causes problems, including     2278       Ignoring it causes problems, including volume being skipped.
2308       --> but treating it as an intersection     2279       --> but treating it as an intersection used to cause problems too ??
2309                                                  2280 
2310                                                  2281 
2311 May    7th, 1998    J. Apostolakis  -  magfie    2282 May    7th, 1998    J. Apostolakis  -  magfield-06-02-helix01
2312                                                  2283 
2313 - Tag includes new version of G4ChordFinder (    2284 - Tag includes new version of G4ChordFinder (not used by W.Wander).
2314                                                  2285 
2315                                                  2286 
2316 May    7th, 1998    W. Wander     (recorded/c    2287 May    7th, 1998    W. Wander     (recorded/commited by  J. Apostolakis)
2317                                                  2288 
2318 - New "helical" RK steppers that move in heli    2289 - New "helical" RK steppers that move in helical segments, not linear.
2319     * Several changes to add steppers            2290     * Several changes to add steppers
2320                                                  2291 
2321  Modified Files:                                 2292  Modified Files:
2322         G4MagErrorStepper.hh                     2293         G4MagErrorStepper.hh
2323         G4MagErrorStepper.cc                     2294         G4MagErrorStepper.cc
2324            added Helical stepping methods to     2295            added Helical stepping methods to this general ABC.
2325                                                  2296 
2326         G4MagIntegratorStepper.hh                2297         G4MagIntegratorStepper.hh
2327            made RightHandSide virtual   (this    2298            made RightHandSide virtual   (this will be reversed very soon)
2328                                                  2299 
2329         testPropagateMagField.cc                 2300         testPropagateMagField.cc
2330            Test of Helical stepping functiona    2301            Test of Helical stepping functionality added.
2331                                                  2302 
2332  Added Files for new Helical RK steppers, der    2303  Added Files for new Helical RK steppers, deriving from G4MagErrorStepper:
2333         G4HelixExplicitEuler.cc  ( and .hh )     2304         G4HelixExplicitEuler.cc  ( and .hh )
2334         G4HelixHeum.cc                           2305         G4HelixHeum.cc
2335         G4HelixImplicitEuler.cc                  2306         G4HelixImplicitEuler.cc
2336         G4HelixSimpleRunge.cc                    2307         G4HelixSimpleRunge.cc
2337                                                  2308 
2338  Added File for implementation:                  2309  Added File for implementation:
2339         G4MagErrorStepper.icc                    2310         G4MagErrorStepper.icc
2340                                                  2311 
2341                                                  2312 
2342 May    7th, 1998    J. Apostolakis   -  magfi    2313 May    7th, 1998    J. Apostolakis   -  magfield-06-01
2343                                                  2314 
2344 - added small changes to                         2315 - added small changes to
2345     * G4ChordFinder:           methods to get    2316     * G4ChordFinder:           methods to get/set IntegratorDriver
2346     * G4MagIntegratorDriver:   made OneGoodSt    2317     * G4MagIntegratorDriver:   made OneGoodStep method public
2347 - created the file.                              2318 - created the file.