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 11.1.1)


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