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 11.1.3)


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