source: trunk/source/geometry/History @ 1246

Last change on this file since 1246 was 850, checked in by garnier, 16 years ago

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1$Id: History,v 1.39 2007/05/18 11:10:43 gcosmo Exp $
2-------------------------------------------------------------------
3
4     =========================================================
5     Geant4 - an Object-Oriented Toolkit for Simulation in HEP
6     =========================================================
7
8                      Category History file
9                      ---------------------
10This file should be used by G4 developers and category coordinators
11to briefly summarize all major modifications introduced in the code
12and keep track of all category-tags.
13It DOES NOT substitute the  CVS log-message one should put at every
14committal in the CVS repository !
15
16     ----------------------------------------------------------
17     * Reverse chronological order (last date on top), please *
18     ----------------------------------------------------------
19
20May 18, 2007   Gabriele Cosmo               geometry-V08-03-01
21-----------------------------
22- Includes tags: geomdiv-V08-03-01, geomnav-V08-03-02, breps-V08-03-01,
23                 geom-bool-V08-03-00, geom-csg-V08-03-01,
24                 geom-specific-V08-03-01 and geom-solids-tests-V08-03-00.
25- Use kAngTolerance and kRadTolerance from G4GeometryTolerance class.
26- Coworks with tag "global-V08-03-03".
27
28May 11, 2007   Gabriele Cosmo               geometry-V08-03-00
29-----------------------------
30- Includes tags: geomvol-V08-03-00, geom-specific-V08-03-00, breps-V08-03-00,
31                 geomnav-V08-03-00, geommng-V08-03-01, geomdiv-V08-03-00,
32                 geombias-V08-03-00, field-V08-03-00.
33- Use call to G4GeometryTolerance instead of kCarTolerance where needed.
34- Requires tag "global-V08-03-00" and related tag set.
35
36Nov 09, 2005   Gabriele Cosmo               geometry-V07-01-00
37-----------------------------
38- Includes tags: geomsolids-V07-01-00, geomvol-V07-01-02, geombias-V07-01-00,
39                 geomdiv-V07-01-01, field-V07-01-00, geommng-V07-01-03.
40- Implemented changes for support of CLHEP-2.0.X.
41- Added fake default constructor for all concrete volumes, solids, base
42  classes and relevant utility classes for handling of direct object
43  persistency.
44- Implemented migration to <sstream> from deprecated <strstream>.
45
46Dec 10, 2004   Gabriele Cosmo               geometry-V06-02-02
47-----------------------------
48- Replaced M_PI with CLHEP's pi.
49
50Dec 02, 2004   Gabriele Cosmo               geometry-V06-02-01
51-----------------------------
52- Implemented migration to <cmath> for standard mathematical functions.
53- Includes tags: field-V06-02-02, geomdiv-V06-02-02, geommng-V06-02-08,
54  geomnav-V06-02-08, geomsolids-V06-02-01, geomvol-V06-02-01.
55
56Oct 13, 2004   Gabriele Cosmo               geometry-V06-02-00
57-----------------------------
58- Includes tags:
59  geommng-V06-02-03, geom-csg-V06-02-05, geom-bool-V06-02-01,
60  breps-V06-02-02, geom-specific-V06-02-02, geomnav-V06-02-04.
61
62Jun 11, 2004   Gabriele Cosmo               geometry-V06-01-01
63-----------------------------
64- Includes tag "geomnav-V06-01-01".
65- Use global flag G4GEOMETRY_ALLOC_EXPORT to export extern symbols for DLLs.
66  Modified granular GNUmakefiles and rearranged usage of extern symbols
67  in classes in volumes module.
68
69Jun 07, 2004   Gabriele Cosmo               geometry-V06-01-00
70-----------------------------
71- GNUmakefile: added definition of GLOBLIBS for DLLs support on Windows.
72- Includes tags in "geant4-06-02-cand-00" plus "geomvol-V06-01-02".
73
74Nov 04, 2003   Gabriele Cosmo               geometry-V05-02-01
75-----------------------------
76- Includes headers review. Tags included:
77  field-V05-02-01, geommng-V05-02-03, geomnav-V05-02-03, geom-bool-V05-02-03,
78  geom-csg-V05-02-04, geom-specific-V05-02-04, geomvol-V05-02-03.
79
80Sep 30, 2003   Gabriele Cosmo               geometry-V05-02-00
81-----------------------------
82- Logical reorganisation and restructure of modules:
83  o Added new module "navigation" for navigation-releated classes.
84  o Removed module "verification" and merged classes in "navigation".
85  o Archived solids/STEP and solids/STEPinterface modules.
86  o Modified GNUmakefiles in the various modules to cope with these changes.
87- Includes tags: geomvol-V05-02-01, geommng-V05-02-00, geomdiv-V05-02-02,
88                 geombias-V05-02-02, geomnav-V05-02-00, geomsolids-V05-02-00.
89
90Dec 04, 2002   Makoto Asai                  geometry-V04-01-00
91--------------------------
92- Migration to new G4ApplicationState
93
94Apr 19, 2002   Gabriele Cosmo               geometry-V04-00-03
95-----------------------------
96- Groups the following tags (see related History files for details):
97  geom-bool-V04-00-04, geom-csg-V04-00-03, geommng-V04-00-03,
98  geomvol-V04-00-06, geomver-V04-00-00, breps-V04-00-05.
99
100Apr 10, 2002   Gabriele Cosmo               geometry-V04-00-02
101-----------------------------
102- Fixed compilation problems for porting on supported and non-ISO platforms
103  on 'biasing' module. Includes "geomvol-V04-00-05" and "geombias-V04-00-03"
104  on top of previous global geometry tag.
105
106Mar 25, 2002   Gabriele Cosmo               geometry-V04-00-01
107-----------------------------
108- Added 'biasing' module. Updated global GNUmakefile.
109- Includes "biasing" module on top of 'geant4-04-00-ref-03'.
110
111Jan 11, 2002   Gabriele Cosmo               geometry-V04-00-00
112-----------------------------
113- Updated unit tests and benchmarks.
114- This tag includes also the following tags on top of "geant4-04-00-ref-00":
115  geomvol-V04-00-01, geommng-V04-00-00, geom-solids-csg-V04-00-00,
116  field-V04-00-00, geom-solid-bool-V04-00-00, geom-solids-specific-V04-00-00.
117  See related History files for details.
118
119Oct 22, 2001   Gabriele Cosmo               geometry-V03-02-01
120-----------------------------
121- Introduced new module "verification" for geometry debugging.
122- This tag includes the following tags on top of "geant4-03-02-ref-05":
123  geomver-V03-02-00, field-V03-02-00, geomvol-V03-02-00,
124  geommng-V03-02-00, geom-solid-bool-V03-02-01.
125  See related History files for details.
126
127Jul 11, 2001   Gabriele Cosmo               geometry-V03-02-00
128-----------------------------
129- Includes same code contents as in "geant4-03-02-ref-00" except that
130  CVS file revision is now synchronized with HEAD, after the update for
131  the disclaimer of warranty.
132- Includes tag "breps-V03-02-00".
133
134Apr 20, 2001   Gabriele Cosmo               geometry-V03-01-00
135-----------------------------
136- Includes all geometry coworking tags after the migration to STL vector:
137  field-V03-00-05, geommng-V03-01-00, geomsolids-V03-01-00 and
138  geomvol-V03-01-01.
139
140Nov 20, 2000   Gabriele Cosmo               geometry-V02-00-00
141-----------------------------
142- QA code cleanup from Code-Wizard and warnings issued by
143  "-Wall -ansi -pedantic" g++ compiler options. Includes tags:
144  geom-solids-csg-V02-00-11, breps-V02-00-03, geom-solid-bool-V02-00-02,
145  STEP-V02-00-00, stepinterface-V02-00-02, geom-solids-specific-V02-00-04,
146  field-V02-00-02, geommng-V02-00-04, geomvol-V02-00-01.
147
148May 12, 2000   Gabriele Cosmo               geometry-V01-01-03
149-----------------------------
150- magneticfield (field-V01-01-03):
151  o fixes to G4MagErrorStepper (check on chord endpoint),
152    G4RKG3_Stepper (deleted error message from StepNoErr),
153    G4MagIntegratorDriver (modified debug information).
154  o minor fix to dummy implementation of assignment operator
155    in G4MagneticField.hh.
156  o modified method for finding new trial step in G4ChordFinder.
157- volumes (geomvol-V01-01-00):
158  o introduced kCarTolerance for check over taken step length and
159    TruePathLength in G4PropagatorInField::ComputeStep().
160- solids/CSG (geom-solids-csg-V01-01-02):
161  o fixes in DistanceToIn(p,v) for G4Box and G4Trd to return 0 distance
162    in case computed value is less than 0.5*kCarTolerance.
163
164Apr 27, 2000   Gabriele Cosmo               geometry-V01-01-02
165-----------------------------
166- management, solids/Boolean, magneticfield, volumes:
167  o reorganised comments for the Software Reference Manual
168- solids/specific:
169  o minor fixes and removed dependency over solids/CSG module.
170- solids/test
171  o updated SBT test suite.
172
173Apr 11, 2000   John Allison                 geometry-V01-01-01
174---------------------------
175- management:
176  o made virtual G4VisExtent G4VSolid::GetExtent() non-pure and
177    implemented a default in terms of CalculateExtent.
178- solids:
179  o removed implementations of GetExtent in most sub-classes of G4VSolid.
180  o all implementations of DescribeYourselfTo (G4VGraphicsScene& scene) const
181    now correctly written: scene.AddThis(*this).
182- solids/Boolean:
183  o CreatePolyhedron implemented for BooleanSolids.
184  o G4DisplacedSolid: reversed implementation of GetFrameRotation and
185    GetObjectRotation, removing inappropriate invertion.
186  o G4DisplacedSolid::GetConstituentMovedSolid() made const.
187
188Apr 05, 2000  Gabriele Cosmo                geometry-V01-01-00
189----------------------------
190- This tag includes the following sub-category tags since geometry-V01-00-00a
191  (all of them collected by geomsolids-V01-01-00):
192  o geom-solids-csg-V01-01-01
193    + fixes to G4PolyhedraSide.cc, G4Tubs.cc (see related History file)
194    + added diagnostics to G4Cons, G4Sphere and G4Torus in function
195      DistanceToOut()
196    + general directory restructuring: moved non 'CSG' shapes to new directory
197      'specific'
198  o breps-V01-00-02
199    + implemented decoupling from NIST STEP Reader
200    + several fixes for porting and memory leaks (see related History file)
201  o STEP-V01-00-01
202    + upgrade to NIST SCL 3.2
203    + porting and ISO-ANSI C++ fixes
204  o stepinterface-V01-00-01
205    + upgrade to support the new NIST STEP Reader
206    + improved overall diagnostics
207    + several fixes for memory leaks and check of NULL pointers (see History)
208  o geom-solids-specific-V01-01-00
209    + new directory containing the implementation of specific solids,
210      several classes moved from solids/CSG
211    + new specific solid G4EllipticalTube, implementing a tube with
212      elliptical cross section (geant3 solid 'ELTU')
213- Generic tests "SBT" and "Fred" have been moved from solids/CSG/test to
214  solids/test (new directory).
215- Organised class description comments for the Software Reference Manual in
216  CSG and specific headers. Added CVS headers to files in specific.
217
218Feb 29, 2000  Gabriele Cosmo                geometry-V01-00-00a
219----------------------------
220- Minor fixes to unit tests (CSG) to make them up-to-date with recent
221  development versions.
222
223Jan 19, 2000  Gabriele Cosmo                geometry-V01-00-00
224----------------------------
225- Sycronized file versions with HEAD after ISO-C++ migration.
226  Collecting subtags: field-V01-00-00, geomsolids-V01-00-00,
227                      geommng-V01-00-00 and geomvol-V01-00-00.
228
229Changes are now documented in the individual sub-category History files.
230------------------------------------------------------------------------
231
232Nov  10,  99   John Apostolakis              geometry-V00-01-01
233
234   geomsolids-V00-01-03
235      which includes the following sub-tags:
236        geom-solids-csg-01-00-02-cand
237        geom-solid-bool-V00-01-03b
238        breps-V00-01-00
239        stepinterface-V00-01-00
240
241   geomvol-01-01-01b
242
243   geommng-V00-01-01
244
245   field-V00-01-02   
246
247===============================================================================
248  Geant4 1.0  , 1st STL-based release.
249===============================================================================
250June  7,  99   John Apostolakis              geometry-01-00-06
251
252- Tagged.
253
254June  7,  99   D. C. Williams
255 CSG Pcon/Pgon (and supporting classes) :  several changes
256
257June  4,  99   S. Giani
258 G4Trap                 : CalculateExtent fix
259 G4SmartVoxelHeader.cc  : protection against inconsistent CalculateExtent
260
261May  21,  99   John Apostolakis              geometry-01-00-05
262- Tagged.
263
264May  20,  99   S.Giani, S.Magni
265
266  Fixes in BREP  Line, & (PCone, FCylindrical/FConical surf) respectively
267  For more details see solids/BREP/History
268
269  Also see changes mentioned in solids/CSG/History for CSG Pcon/Pgon
270
271May  19,  99   Frank  Behner
272 
273  Volumes: Further minor fixes for STL.
274
275May  12,  99   John Apostolakis              geometry-01-00-04
276
277- Tagged.
278
279May  12,  99   Simone Giani
280  Fixes to G4BREPSolidPolyhedra and G4FPlane.
281
282May  10,  99   Frank  Behner
283  Changes in RW use for compatibility with RW/STL in
284        management/src/G4PhysicalVolumeStore.cc 
285        management/src/G4LogicalVolumeStore.cc
286  modifying  "delete first();" to "removeFirst();"     
287
288May   7,  98   John Apostolakis
289
290  Changed G4Navigator to issue warning in the case of small inaccuracies
291   & cause fatal exception only for large deviations.
292
293May   3,  99   John Apostolakis              geometry-01-00-03
294
295 Minor fixes
296    In CSG solids:  Cons & Tubs  minor, and in PCon/PGon
297    For STL migration: PV-vol-store, NavLevel   (Frank Boehner)
298
299Apr  19,  99   John Apostolakis              geometry-01-00-02
300
301 Small fixes to solids: consistency fix for CalculateExtent & tolerance
302
303 CodeWarrior fixes (some) to magneticfield
304
305
306Apr  15,  99   John Allison
307
308   Added -I$(G4BASE)/intercoms/include to BREPS, Boolean abd CSG GNUmakefiles
309            in preparation for move of G4VGraphicsScene to intercoms.
310
311Mar  19,  99   John Apostolakis              geometry-01-00-01
312
313 Category tag using:
314   solids:       [tag geomsolids-01-00-01]
315   volumes:      [tag geomsolids-01-00-01]
316   management:   [tag geommng-01-00-02 ]
317   magneticfield [tag field-01-00-03]
318
319Mar  19,  99   John Apostolakis
320
321 Summary of significant changes in sub-categories/sub-directories
322   management:   [tag geommng-01-00-02 ]
323      G4AffineTransform.icc InverseProduct fix (used in Navigator).
324
325   [....  Add information here .... ? ]
326
327Jan  15,  99   John Apostolakis   
328
329   Fixes in CSG solids (Cons by V.Grichine, CSG Pcone+Pgon by D.C.Williams)
330
331Jan  15,  99   Simone Giani      ( rec by JA. )
332   Fixes in the creation of Smart Voxels:
333
334   Less memory intensive and much more performant at initialisation.
335   No worse, but a little faster at tracking time.  (G4SmartVoxelHeader)
336
337Jan  10,  99   John Apostolakis   ( geometry-01-00-01 to be done)
338                                    geometry as in geant4-00-patch2
339
340   Fixes in BREPs (Pcone, Pgon, ...)  see solids/BREPS/History
341   includes the subtags
342
343      stepinterface-01-00-01     
344      step-01-00-01
345
346===============================================================================
347  Geant4.0.0  , 1st production release.
348===============================================================================
349
350Dec  11,  98   John Apostolakis   geometry-00-04-04
351
352   Fixes in BREP Pcone, Pgon
353            new csg versions of above too.
354
355
356Dec   9,  98   John Apostolakis   geometry-00-04-03
357
358   Fixes for
359
360     - BrepPCone in constructor, FPlane, Cylindrical, Conical surfaces.
361                       Ellipse and others.
362
363     - Navigator for Replica Navigation (edges).
364
365     - STEPinterface : several creators
366
367
368Dec   1,  98   John Apostolakis   geometry-00-04-02
369
370   New code in solids/CSG (other implementation of Pgon, Pcon - not exercised)
371
372Dec   1,  98   John Apostolakis   geometry-00-04-02minus
373   Fixes in Boolean/src             portability
374            BREPS/src               logical problems (bPcone, ConeSurf, Plane)
375           
376   Added History files in subdirectories.
377
378
379Nov  27,  98   John Apostolakis   geometry-00-04-01
380
381   Fixes in Boolean/src             code: logical fixes
382            magneticfield/include   interface problem
383                          src       printing in propagator (debug)
384            Breps                   renamed methods (from compiler warnings)
385                                    + several fixes: Fplane, BREPSolid, Cylinder
386            volumes/NormalNav       stores Copy No
387            management              no changes - but fixed versions (now head)
388
389=======
390Nov  19,  98   John Apostolakis   geometry-00-03-10
391
392 - Fixes from Lionel in BREPS/STEP/STEPinterface
393
394 - management/include/G4LogicalVolume.icc
395    Deleted and readded same version to get CVS to see it on the head.
396
397
398Nov  19,  98   John Apostolakis   geometry-00-03-09
399
400 - Added field-00-03-03
401     (it fixes propagation and several steppers)
402
403Nov  13,  98   John Apostolakis   geometry-00-03-08
404
405 - Added  ???
406
407----------------------------------------------------------------------
408Nov  12,  98   John Apostolakis   geometry-00-03-07
409
410 - Tagged for the STT.
411
412 - solids-00-03-02:
413    i) New directory finally included:
414        solids/Boolean 
415       As in geometry-00-03-03 with minor change/fix.
416
417   ii) Fix in solids/CSG/src/G4Sphere.cc (V. Grichine).
418
419 - field-00-03-02
420     Many changes in Magnetic field to accomodate Electric Field.
421
422  Still does not contain the fixes in geometry-00-03-03 (and later) in the
423   following directories:
424     BREPS,
425     STEP,
426     STEPinterface
427----------------------------------------------------------------------------
428
429Nov   9,  98   John Apostolakis   geometry-00-03-06
430
431 - Tagged for the STT.
432
433  Includes reorganisation of volumes
434
435  Still does not contain the fixes in geometry-00-03-03 (and later) in the
436   following directories:
437       BREPS, STEP, STEPinterface,
438       >all< of solids/Boolean
439
440----------------------------------------------------------------------
441
442Oct  30,  98   John Apostolakis   geometry-00-03-03 -- NOT TESTED --
443
444  New Boolean directory.
445
446  Many fixes in BREPS:
447     Deleted StepCopyData from all classes.
448     Replaced G4Point, Point3d and Point2d with G4Point3D
449     Fixes to BREPSolid for BoundingBoxes
450
451----------------------------------------------------------------------
452
453Sept 23rd, 98  John Apostolakis
454
455  G4Box:  Changed DistanceToIn to fix new problem.
456
457  G4ParameterisedNavigation
458  G4VoxelNavigation
459          Fixed VoxelSafety computation for the case of the middle voxel of
460       a set of equivalent (lowest-level) voxels.
461
462Sept 17th, 98  John Apostolakis    geometry-00-03-01
463
464 Tag created.
465
466Sept 15th, 98  John Apostolakis
467
468 In G4ParameterisedNavigation
469
470   i) Corrected ComputeSafety(...) which called ComputeVoxelSafety without
471     setting the fVoxelNode & fVoxelNodeNo to the ones at localpoint.
472
473     [ This produced incorrect safeties in some cases & resulted in an
474      assertion failure in testT08 because of an unexpected change of volume. ]
475
476  ii) ComputeStep: Fixed assertion check of blocked replica number.
477
478
479Aug  24th, 98  John Apostolakis  geometry-00-02-01
480
481  Tagged.
482  Small fixes in BREPS, to allow compilation on different platforms.
483
484
485==============================================================================
486beta01 release
487==============================================================================
488July 31st, 98  Peter Urban
489
490  Several fixes for BREPS.
491
492
493July 29th, 98  John Apostolakis  (with Stefano Magni)
494
495 G4BREPSolidPCone.cc : Cylindrical sections were incorrectly placed.
496
497 G4ConicalSurface.cc
498 G4CylindricalSurface.cc:
499
500    The Inside functions are modified to try to use the Geant-4 tolerance.
501     --> must be checked further
502       [ The method is used by Intersect of respective surfaces in a
503         complicated manner. ]
504
505 G4FConicalSurface.cc
506   - Fix to Bounding Box, which was incorrectly centered/placed.
507   - Fix to Intersect, to insure that only intersection in Finite extent of
508      Surface are found.
509
510
511July 28th, 98  John Apostolakis 
512
513   In the Navigator location, the blocked Volume was not cleared when the
514navigator descended several levels in the tree. This would allows the same in another part of the tree to be wrongly blocked.
515
516   In G4ParameterisedNavigation, the identity of the blocked Physical Volume
517was not checked! You would block replica number 3 of your parameterised volume
518although you exited replica number 3 of another volume!
519
520 The above problems combined to allow BlockingList to be
521called with replicaNo = -1, which caused Linux/G++ & HP to dump core
522on program exit.
523
524 Modified Files:
525    G4Navigator.cc
526    G4ParameterisedNavigation.cc
527
528 An assignment used to be an equality check by mistake. (Probably it was ok
529because it is redundant)
530
531 Modified Files:
532        G4VoxelNavigation.cc
533
534
535July 23rd, 98  John Apostolakis
536
537
538 
539June 26th, 98  John Apostolakis  geometry-00-06-05
540
541  1)  Modified check in ComputeStep that pseudo-relocation is within safety:
542     i) no check is made is the move is within tolerance as it makes no sense
543         - on a boundary it would cause a volume change (where there was none.)
544    ii) the Navigator now stores the last safety it calculated (origin, value)
545         and uses it for the calculation of this check.
546        This eliminates problems with this check, that produced assertion
547         failure in many example codes.
548
549  2) NavigationHistory equality operator modified for efficiency (with P.Urban)
550
551  3) G4Box     Problem in DistanceToIn reporting intersection where there was
552               none has been given a more complete solution (V.Grichine)
553     G4Sphere  Exception problem fixed.  (V.Grichine)
554
555
556June 20th, 98  John Apostolakis  geometry-00-06-04
557
558  1) I have added a check that any pseudo-relocation made between a
559 call to Locate (the true Relocation) and the next call to ComputeStep
560 (eg in a PostStepDoIt) is truly within safety.
561
562  2) The Navigator's ComputeStep method now always returns infinity, when it
563   does not limit the step
564
565  3) G4Tubs.cc: Fixed surface normal (in R) which was not a unit vector.
566
567
568June 18th, 98  John Apostolakis 
569 
570 In the Navigator:
571    1) Fix to allow lateral displacement (within safety) in PostStepDoIts
572   without messaging the Navigator. 
573    2) A first implementation of LocateGlobalPointWithinVolume
574
575 A fix in NormalNavigation's Compute Step, to allow volumes that are "touched"
576   to be tagged as entered.  (Ie, if the step is just long enough to arrive at
577   the surface of a volume, the navigator can still enter it quickly.)
578
579
580June 12th, 98   John Apostolakis (geometry-00-06-03)
581
582 Candidate fix to BREP PCone, constructing Conical Surfaces using different
583  starting point.
584
585 Fix to ReplicaNavigation to temporarily patch "assertion" problem.
586
587
588June 10th, 98  John Apostolakis  (geometry-00-06-02)
589
590 Added a new CSG Solid (G4Hype), a Hyperboloid by rotation       
591
592 Bug fix to G4Box::DistanceToIn (which reported intersection where there
593                                 was none).
594 Bug fix to G4FConicalSurface and G4ConicalSurface to fix G4BREPSolidPCone.
595 Correction to  to DistanceToOut of BREPSolid to ensure compatibility with
596   convexity assumptions of Navigator
597
598
599June  8th, 98  John Apostolakis  (geometry-00-06-01)
600
601 Created a tag for BREPS at the last point before merge with Peter's Developments.
602
603 Modified
604    G4Navigator       and
605    G4NormalNavigation   G4ParameterisedNavigation
606    G4ReplicaNavigation  G4VoxelNavigation
607
608  to add ComputeSafety methods. These make a quick estimation of the
609 safety and can/should be called for the final point of a step only.
610
611
612June  3rd, 98  John Apostolakis
613
614 G4Navigator:
615
616    Added a new new method LocateGlobalPointWithinVolume that serves to notify
617  the Navigator that a track has moved to the new Global point 'position'.
618  This point must be known to be within the current volume, probably because it
619  is withing safety.
620
621May   11th, 98  John Apostolakis
622
623  G4PVPlacement:
624    - Implemented additional (4th) constructor that takes a pointer to a
625       logical mother volume and a G4Transform3D with the solid's rotation.
626    - Also added a data member to store whether a RotationMatrix was created.
627       This allows us to avoid a small memory leak in use of 2 constructors.
628
629May    8th, 98  John Apostolakis
630
631-  History files created in magneticfield directory for this category.
632    It will be used exclusively for the maintenance of information in
633    this category. Only what impacts its interaction with the geometry
634    (G4PropagatorInField) will be mentioned here.
635
636-  History file  has existed in solids/BREPS for slightly more detailed
637    changes in that sub-category.
638
639
640April 29th, 98  John Apostolakis  (geometry-00-05-05)
641
642-  A significant logical error in G4VoxelNavigation::LocateNextVoxel was
643  corrected: the search for the next voxel could ignore voxels at lower levels
644
645-  Small changes for DEC in GNUmakefile in BREPS & STEP
646   * Removed -cfront option from GNUmakefile for DEC. -cfront
647      overrides ANSI standard rules in cxx-6.0.
648   * Cleaned up trivial warnings on DEC (Extraneous semicolons).
649
650
651April 27th, 98  John Apostolakis  (geometry-00-05-04)
652
653- Tagged
654
655April 24th, 98  Jari Sulkimo       ( recorded by John Apostolakis here)
656- Fixes in BREPs (see solids/BREP/History for details, by author)
657   * fixed scope bugs in for loops
658   * bug fixes to G4Assembly.cc for STEP file interaction & placed solids
659     creation.
660
661April 23rd, 98  John Apostolakis  (geometry-00-05-03)
662
663- Bug fixes to BREP code for Assembly level of STEP files
664 (introduced in alpha05)
665
666- Renamed file G4Point3d.hh to G4Point3d.h (because of problems
667  on Windows NT in name clash with G4Point3D.hh).
668
669
670April 22nd, 98  John Apostolakis  (geom-05-02)
671- Tagged.
672
673April 21st, 98  John Apostolakis  (geometry-00-05-01)
674- Added SetAllParameters methods to G4Torus and G4Para.
675- All CSG solids now inherit from the new abstract class G4CSGSolid, instead
676of directly from G4VSolid.
677- "const G4double" arguments have been changed to "G4double" for CSG methods.
678
679April 21st, 98  John Allison
680- Slightly relaxed tolerance in G4Trap (for g3tog4).
681- Corrected G4BREPSolidPolyhedra.cc for graphics_reps/G4Polyhedron.
682- Added void G4Trd::SetAllParameters.
683- Also relaxed check in G4Trd::CheckAndSetAllParameters (pdx1>=0, etc.)
684
685April 2, 98 G.Barrand
686- STEP/dirobj.cc : #ifdef WIN32, do not compile opendir and closedir.
687
688March 24, 98 G.Barrand
689- GNUmakefile : MAKESHLIB changed in G4MAKESHLIB
690
691March 13, 98   G.Cosmo (on behalf of S.Giani) - (geometry-00-04-05)
692
693- Added G4VPVParameterisation.cc including default implementations
694  of ComputeSolid() and ComputeMaterial() missing previously (J.Apostolakis).
695- Included fixes for aCC compiler in BREPS and STEP (J.Sulkimo, G.Cosmo).
696
697
698March  9, 98  J. Apostolakis - (geometry-00-04-04)
699
700- Small fix to G4BREPSolid.cc which was causing problems on HP-UX.
701  (Deleted use of floating point modulo for integers, with Jari S.)
702
703- G4Sphere:    further small corrections.
704
705
706March     5, 98    J. Apostolakis - (geometry-00-04-03)
707
708- Parameterised Volume can now VARY the TYPE of SOLID and/or Material
709   by copy number.  PVParameterisation classes can now compute these.
710   The Navigator has been modified to compute solid and material, and
711   to set them in the associated logical volume
712
713- Now able to process an extra level of STEP files, using new code in
714    BREPs  (Jari Sulkimo).
715
716- Further cleanup of code in BREP category  (Peter Urban).
717
718- Small modification in solids/STEP/GNUmakefile for Win/NT port (S. Sadilov).
719
720
721March     4, 98    J. Apostolakis - (geometry-00-04-02)
722
723- G4Sphere: corrected tests of the phi angle and with tolerance checking
724that compared squares of distances.
725
726- The World volume can now be split into replicas. This not recommended, but
727the Navigator is now able to handle it.
728
729- Cleanup of code in BREP category (Peter Urban & Jari Sulkimo)
730
731
732February 16, 98    J. Apostolakis - (geometry-00-04-01)
733
734- Replicas and parameterised physical-volumes now store the copy number of
735their current copy. (It is valid only for physical volume in the hot tree).
736Navigation routines were modified to enable this.
737
738
739February  4, 98    J. Apostolakis - (geometry-00-03-02)
740
741- A few small changes were made to the Magnetic Field classes.
742This included one that allows it to work without repeatedly
743issuing an unneccessary warning. 
744
745- Small fixes to BREP and STEP parts help in fixing a problem
746with True/false on some platforms.
747
748January 28, 98 S. Sadilov
749- Small modification in GNUmakefile for Win/NT port
750
751
752January  26, 98    J. Apostolakis - (geometry-00-03-01)
753
754i)  New implementation of G4NavigationHistory using G4NavigationLevel.
755This implementation allows for very fast copying of G4NavigationHistory,
756which is required in order to copy G4TouchableHistory.
757
758ii) Correction in G4ReplicaNavigation.cc in DistanceToOutPhi, influencing
759replicas divided in phi.
760
761
762December 19, 97 G. Cosmo - (alpha03)
763
764- Created.
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