Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/History

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Diff markup

Differences between /geometry/magneticfield/History (Version 11.3.0) and /geometry/magneticfield/History (Version 10.6)


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