Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/History

Version: [ ReleaseNotes ] [ 1.0 ] [ 1.1 ] [ 2.0 ] [ 3.0 ] [ 3.1 ] [ 3.2 ] [ 4.0 ] [ 4.0.p1 ] [ 4.0.p2 ] [ 4.1 ] [ 4.1.p1 ] [ 5.0 ] [ 5.0.p1 ] [ 5.1 ] [ 5.1.p1 ] [ 5.2 ] [ 5.2.p1 ] [ 5.2.p2 ] [ 6.0 ] [ 6.0.p1 ] [ 6.1 ] [ 6.2 ] [ 6.2.p1 ] [ 6.2.p2 ] [ 7.0 ] [ 7.0.p1 ] [ 7.1 ] [ 7.1.p1 ] [ 8.0 ] [ 8.0.p1 ] [ 8.1 ] [ 8.1.p1 ] [ 8.1.p2 ] [ 8.2 ] [ 8.2.p1 ] [ 8.3 ] [ 8.3.p1 ] [ 8.3.p2 ] [ 9.0 ] [ 9.0.p1 ] [ 9.0.p2 ] [ 9.1 ] [ 9.1.p1 ] [ 9.1.p2 ] [ 9.1.p3 ] [ 9.2 ] [ 9.2.p1 ] [ 9.2.p2 ] [ 9.2.p3 ] [ 9.2.p4 ] [ 9.3 ] [ 9.3.p1 ] [ 9.3.p2 ] [ 9.4 ] [ 9.4.p1 ] [ 9.4.p2 ] [ 9.4.p3 ] [ 9.4.p4 ] [ 9.5 ] [ 9.5.p1 ] [ 9.5.p2 ] [ 9.6 ] [ 9.6.p1 ] [ 9.6.p2 ] [ 9.6.p3 ] [ 9.6.p4 ] [ 10.0 ] [ 10.0.p1 ] [ 10.0.p2 ] [ 10.0.p3 ] [ 10.0.p4 ] [ 10.1 ] [ 10.1.p1 ] [ 10.1.p2 ] [ 10.1.p3 ] [ 10.2 ] [ 10.2.p1 ] [ 10.2.p2 ] [ 10.2.p3 ] [ 10.3 ] [ 10.3.p1 ] [ 10.3.p2 ] [ 10.3.p3 ] [ 10.4 ] [ 10.4.p1 ] [ 10.4.p2 ] [ 10.4.p3 ] [ 10.5 ] [ 10.5.p1 ] [ 10.6 ] [ 10.6.p1 ] [ 10.6.p2 ] [ 10.6.p3 ] [ 10.7 ] [ 10.7.p1 ] [ 10.7.p2 ] [ 10.7.p3 ] [ 10.7.p4 ] [ 11.0 ] [ 11.0.p1 ] [ 11.0.p2 ] [ 11.0.p3, ] [ 11.0.p4 ] [ 11.1 ] [ 11.1.1 ] [ 11.1.2 ] [ 11.1.3 ] [ 11.2 ] [ 11.2.1 ] [ 11.2.2 ] [ 11.3.0 ]

Diff markup

Differences between /geometry/magneticfield/History (Version 11.3.0) and /geometry/magneticfield/History (Version 10.7)


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