source: trunk/source/geometry/solids/CSG/History @ 908

Last change on this file since 908 was 850, checked in by garnier, 16 years ago

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1$Id: History,v 1.105 2008/07/07 10:43:04 gcosmo Exp $
2-------------------------------------------------------------------
3
4     =========================================================
5     Geant4 - an Object-Oriented Toolkit for Simulation in HEP
6     =========================================================
7
8                      Sub-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 directory-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
20Jul 07, 2008  V.Grichine                 geom-csg-V09-01-04
21- G4Sphere: fixed bug in DistanceToOut(p, v, ...) for normal 'fSTheta'
22  greater than 90*deg, and use of tangent giving negative value.
23  Completes series of corrections introduced in previous tag.
24
25Jun 23, 2008  T.Nikitina                 geom-csg-V09-01-03
26- G4Tubs: fix in DistanceToIn(p,v, ...) in case of point on surface with
27  very small tangent direction; now returning kInfinity and no longer zero.
28  It fixes rare observed cases of zero value returned by both DistanceToIn()
29  and DistanceToOut(), causing stuck tracks with zero step length.
30
31Jun 20, 2008  V.Grichine
32- G4Sphere: fixed calculation of roots in DistanceToOut(p,v,...) for
33  theta-conical surfaces interserctions and for sTheta<=90 degree intersection.
34  Addresses issue reported when running PET application with optical photons
35  about mis-computation of distance on half-sphere constructs.
36- Updated unit test for sphere.
37
38Apr 22, 2008  V.Grichine                 geom-csg-V09-01-02
39- G4Trap: corrections for arithmetic operations in 8-point constructor.
40  Addressing problem report #934.
41
42Mar 13, 2008  G.Cosmo                    geom-csg-V09-01-01
43- Cleared compilation warnings in G4Sphere on gcc-4.3.0 for
44  ambiguous use of parentheses in condition statements.
45
46Feb 20, 2008  T.Nikitina                 geom-csg-V09-01-00
47- G4Cons:
48  o Added protection against NaN in GetPointOnSurface() in the case the
49    check is run for Rmax1==Rmax2.
50
51Nov 23, 2007  T.Nikitina                 geom-csg-V09-00-02
52- Fixed problem of undefined side for valid surface normal in case of Phi
53  section and direction through the center of either A G4Tubs or G4Cons shape.
54
55Oct 2, 2007  T.Nikitina                  geom-csg-V09-00-01
56- G4Torus:
57  o Fixed bug in CalculateExtent() for case of non-rotated full-phi
58    torus definition: added protection against negative value for sqrt()
59    and corrected formula for 'delta'. Fixes problem of NaN detected in
60    initialisation by CMS.
61  o Fixed bug in SolveNumericJT(): corrected handling of complex roots,
62    'rootsrefined' is used only if the number of refined roots is the same
63    as for primary roots. Addresses problem report #969.
64
65Aug 16, 2007  T.Nikitina                 geom-csg-V09-00-00
66- G4Tubs: fixed bug in DistanceToOut(p,v,..) for negative value under sqrt()
67  for the case of point p on the surface and v tangent to the surface.
68  Responsible for rare cases of NaN.
69
70May 18, 2007  G.Cosmo                    geom-csg-V08-03-01
71- Use kAngTolerance and kRadTolerance from G4GeometryTolerance class.
72- Coworks with tag "global-V08-03-03".
73
74May 16, 2007  T.Nikitina                 geom-csg-V08-03-00         
75- G4Tubs: fixed bug for DistanceToOut(p,v) for phi section.
76  Bug was causing segmentation fault in recursive_test (problem report #784).
77  For v crossing the center of the tub DistanceToOut was always giving
78  Radial distance and not distance in Phi. 
79- G4Cons: fixed bug for DistanceToOut(p,v) for phi section,
80  the same as for G4Tubs.
81- Updated unit tests.
82
83Oct 19, 2006  G.Cosmo                    geom-csg-V08-01-00
84- Added explicit computation for GetSurfaceArea() for all solids
85  (by H.Dierckx).
86- Implemented caching mechanism for computation of surface area in
87  G4CSGSolid, as done for the geometrical volume computation.
88
89Jun 06, 2006  V.Grichine                 geom-csg-V08-00-01
90- G4Tubs: added protection against NaNs in CalculateExtent() to avoid
91  sqrt() of negative numbers due to round-off.
92- Updated unit tests testG4Sphere and testDistanceAccuracy.
93
94Jan 16, 2006  V.Grichine                 geom-csg-V08-00-00
95- G4Sphere: fixed bug in DistanceToOut() for theta intersections.
96
97Nov 20, 2005  V.Grichine                 geom-csg-V07-01-05
98- G4Torus: fixed bug in Inside(p) for phi sections.
99  Fixes problem report #810.
100
101Nov 9, 2005  G.Cosmo                     geom-csg-V07-01-04
102- Added fake default constructor for all concrete solids and relevant
103  utility classes, for usage of direct object persistency.
104- Implemented changes to support CLHEP-2.0.X for explicit usage of the
105  CLHEP/HepGeom namespaces for CLHEP types.
106
107Oct 23, 2005  V.Grichine                 geom-csg-V07-01-03
108- G4Para: fixed bug in DistanceToOut(p,v) for the case v.x()<0.
109  Following problem report from user posted on Hypernews (#452).
110
111Sep 5, 2005  O.Link                      geom-csg-V07-01-02
112- Moved implementation for DistanceToIn/Out() in G4Torus to make use of
113  G4JTPolynomialSolver for precise calculation of the intersections.
114- Reviewed unit tests and reduced statistics.
115
116Aug 8, 2005  D.Anninos                   geom-csg-V07-01-01
117- Added GetPointOnSurface() to all solids. The method returns a random
118  point according to a quasi-uniform distribution along the surface.
119
120Jul 25, 2005  O.Link                     geom-csg-V07-01-00
121- Fixed bug in G4Sphere::DistanceToOut(p,v):
122  added check for intersection with double cone.
123- Added new unit test testDistanceAccuracy (V.Grichine).
124
125Jun 8, 2005  V.Grichine                  geom-csg-V07-00-09
126- Keep old specification for SurfaceNormal() to treat usage of the
127  function for points not at the surface.
128
129Jun 6, 2005  V.Grichine                  geom-csg-V07-00-08
130- Correction to SurfaceNormal() for G4Cons, G4Sphere, G4Torus, G4Tubs
131  for properly handling location on z-axis and in the frame origin.
132  Fixed bug in G4Cons::SurfaceNormal(p) for normals returned from
133  rmax and rmin.
134- Moved debug printouts for surface-normals to G4CSGDEBUG.
135- Cleared compilation warnings in unit tests and updates.
136
137May 27, 2005  J.Allison                  geom-csg-V07-00-07
138- Fixed polyhedron representation of G4Torus.
139
140May 26, 2005  G.Cosmo                    geom-csg-V07-00-06
141- G4Box.cc: restored call to AddSolid() and replaced old AddThis() in
142  DescribeYourselfTo().
143
144May 11, 2005  V.Grichine                 geom-csg-V07-00-05
145- G4Para: bug fixed in SurfaceNormal(p) for x-distance, to be now in
146  accordance with the surface selection using Inside(p).
147- Updated unit test testSurfaceNormal.cc.
148
149May 09, 2005  V.Grichine                 geom-csg-V07-00-04
150- Updated implementation of SurfaceNormal(p) to get consistence with
151  Inside(p) functions for the treatment of phi/theta surfaces.
152  They are treated now in both functions in terms of kAngTolerance.
153  The reason is that historically SurfaceNormal(p) was using only
154  kCarTolerance for estimation of shortest distance to a surface. Now,
155  following the new updated specification, the surface selection is made
156  according to Inside(p) approach (as kSurface is selected), i.e. - for
157  phi/theta surfaces in terms of kAngTolerance.
158
159Apr 26, 2005  V.Grichine, J.Apostolakis
160- Simplified and revised the new implementation for SurfaceNormal(p)
161  with edges/vertices and made becoming the default one for all solids.
162
163Apr 20, 2005  V.Grichine                 geom-csg-V07-00-03
164- G4Trap: fix in p.x() centering to sum over all vertices.
165
166Mar 23, 2005  J.Allison                  geom-csg-V07-00-02
167- Added test for Number-Of-Rotation-Steps in G4CSGSolid::GetPolyhedron().
168  Requires tag "greps-V07-00-02".
169
170Mar 03, 2005  J.Allison                  geom-csg-V07-00-01
171- Changed AddThis() with AddSolid() for all solids in DescribeYourselfTo()
172  implementation.
173
174Dec 02, 2004  V.Grichine                 geom-csg-V07-00-00
175- New alternative implementation of SurfaceNormal(p) with edges/vertices
176  for G4Box, G4Para, G4Trap, G4Trd. Old implementation is still the default.
177  Can be activated by setting G4NEW_SURF_NORMAL variable before compilation.
178
179Nov 15, 2004  V.Grichine                 geom-csg-V06-02-06
180- G4Trap: added check for X-centering for constructor by verteces.
181  Fixes problem report #687.
182- New unit test for surface-normal and updated unit tests for sphere
183  and trap.
184
185Oct 10, 2004  J.Allison                  geom-csg-V06-02-05
186- Added GetPolyhedron, a smart access function that creates a G4Polyhedron
187  on request and stores for future access.  A null pointer means "not
188  available".
189
190Sep 22, 2004  V.Grichine                 geom-csg-V06-02-04
191- Added specific implementation of GetCubicVolume() for all CSG solids.
192  The method compute the exact geometrical values and stores it.
193  The value is reset each time a parameter of the solid is modified.
194- Moved inline methods for G4Orb to .icc file.
195- Added unit test testSurfaceInOut.cc.
196
197Sep 16, 2004  V.Grichine                 geom-csg-V06-02-03
198- Bug fix in G4Sphere::SurfaceNormal(p) for theta normals.
199
200Jul 28, 2004  V.Grichine                 geom-csg-V06-02-02
201- Fix in G4Cons::DistanceToIn(p,v) on fRmax surface and move in,
202  the condition became a bit more strict && determinant >=0, i.e.
203  intersections in addition to go in.
204  Fixes a rare problem of dIn=dOut=0 observed in 3 events over a
205  statistics of 10^8..
206- Updated unit test testSurfaceInOut.cc to consider the test-case above.
207
208Jul 16, 2004  V.Grichine                 geom-csg-V06-02-01
209- Fix in G4Sphere::DistanceToOut(p,v,...) on fRmin moving outside.
210  The bug showed 3 events of dIn=dOut=0 for 10^7 statistics in
211  testSurfaceInOut.
212- Added new unit test testSurfaceInOut.cc.
213
214Jul 02, 2004  V.Grichine                 geom-csg-V06-02-00
215- Fixes curing rare conditions of loops at boundaries for G4Orb and G4Sphere:
216  o G4Orb.cc: bug fix in DistanceToIn(p,v) on fRmax surface allowing
217    move near fRmax-fCarTolerance/2.
218  o G4Sphere.cc: bug fix in DistanceToIn(p,v) on Rmax/min surface for
219    condition of intersection with (Rmax/min-kCarTolerance) artificial
220    surface.
221- Updated unit test for G4Orb.
222
223Mar 18, 2004  V.Grichine                 geom-csg-V06-00-01
224- G4Torus.cc: bug fix in Inside(p) fixing warnings reported in
225  debug-mode of 'point p is outside'.
226
227Jan 26, 2004  V.Grichine                 geom-csg-V06-00-00
228- Converted strong exceptions in warning notifications for rare anomalous
229  conditions in DistanceToOut(p,v,..).
230- G4Cons.cc: bug fix in DistanceToIn(p,v) to resolve situations of calls
231  to DistanceToOut() for points outside.
232
233Dec 4, 2003   V.Grichine                 geom-csg-V05-02-06
234- G4Trap.cc: fixed initialisation of planes in default constructor.
235- Added new unit test for G4Sphere and new test case for G4Cons.
236
237Nov 5, 2003   V.Grichine                 geom-csg-V05-02-05
238- G4Orb[.hh.cc]: introduced relative tolerance accuracy on fRmax surface
239  in all methods.
240
241Nov 3, 2003   G.Cosmo                    geom-csg-V05-02-04
242- Code cleanup and headers inclusion review
243  (replaced by forward declarations where necessary).
244
245Nov 2, 2003   V.Grichine
246- G4Sphere, G4Orb: revision of algorithm for Phi sections in
247  method Inside().
248
249Oct 29, 2003   J.Apostolakis             geom-csg-V05-02-03
250- G4Sphere.cc: fix for in Inside() for a point with Phi angle:
251  0.5 kAngTol < phi < Phi_start
252
253Oct 28, 2003   G.Cosmo                   geom-csg-V05-02-02
254- Migrated to new G4Exception scheme.
255
256Oct 09, 2003   V.Grichine                geom-csg-V05-02-01
257- Initialise safe=0.0 in DistanceToIn/Out(p) in all solids.
258- Introduced G4Orb solid: a simple sphere with only outer radius.
259
260Sep 30, 2003   G.Cosmo                   geom-csg-V05-02-00
261- Updated GNUmakefile for unit tests, according to new structure
262  introduced in "geometry-V05-02-00".
263
264Jun 25, 2003   G.Folger                  geom-csg-V05-01-00
265- Added disclaimer of liability where needed.
266
267Feb 03, 2003   G.Cosmo                   geom-csg-V05-00-00
268- G4Cons.cc: enhanced treatment of phi-sections,
269  according to algorithm used also in G4Tubs (V.Grichine).
270- Updated unit tests.
271
272Oct 28, 2002   G.Cosmo                   geom-csg-V04-01-01
273- Added implementation of StreamInfo() to comply with new interface for
274  G4VSolid in "geommng-V04-01-03".
275- Moved inline functions to .icc files, reorganised comments for the Software
276  Reference Manual.
277- Some cosmetic changes to code formatting, removed all <TAB> characters and
278  adopted uniform code indentation.
279- Extended unit tests for G4Cons and G4Sphere (V.Grichine).
280
281Jun 26, 2002   V.Grichine                geom-csg-V04-01-00
282- G4Cons.cc: bug fixed in DistanceToIn(p,v) concerning z-crossing at the
283  edge with Rmin,Rmax.
284
285Jun 19, 2002   V.Grichine                geom-csg-V04-00-05
286- G4Sphere.cc: bug fixed in Inside() for treatment of point p on z-axis.
287  Added new condition [(rho2 || p.z()) && fDTheta < M_PI - kAngTolerance*0.5)]
288  for treating special case. Fixes problem report #378.
289
290May 15, 2002   G.Cosmo                   geom-csg-V04-00-04
291- G4Trap.cc, G4Tubs.cc: changed local enum 'kUndefined' to 'kUndef',
292  to co-work with tag "global-V04-00-06", where 'kUndefined' is now
293  defined for EAxis.
294
295Apr 16, 2002   V.Grichine                geom-csg-V04-00-03
296- G4Tubs.cc: restored "vertices" algorithm for CalculateExtent() which
297  was temporarly disabled (see reference to tag geom-solids-csg-V03-00-03).
298- Updated unit test for G4Tubs, testG4Tubs.cc.
299
300Feb 15, 2002   V.Grichine                geom-csg-V04-00-02
301- G4Para.cc: fixed bug in G4Para::Inside() in calculation of xt,
302  according to problem report #357.
303
304Jan 31, 2002   V.Grichine                geom-csg-V04-00-01
305- G4Sphere.cc: bug fix in Inside() function.
306  Fix problem report #216.
307- Updated unit test for G4Sphere.
308
309Jan 10, 2002   G.Cosmo                   geom-solids-csg-V04-00-00
310- Moved all verbosity mode warnings to G4CSGDEBUG and commented exceptions.
311- Activated G4CSGDEBUG mechanism in GNUmakefile.
312- G4Sphere.cc: fixed a problem with tolerances in the case of large Radius.
313  The case (test18) involves an Rmax = 250 000 000.00 mm
314  The ratio                         -9
315              tolerance       1.0 10              -17
316              ----------- =  ------------ = 0.4 10
317                  Rmax                +8
318                                2.5 10
319  which is smaller than the precision of doubles.
320  Solution (for DistanceToOut(), where problem occured):
321  use a flexible tolerance, equal to the maximum of (kRadTolerance, 10 * R )
322  (J.Apostolakis).
323- Upgraded unit tests and fixed warnings on gcc-2.95-2.
324
325Aug 27, 2001   V.Grichine                geom-solids-csg-V03-02-00
326- G4Sphere.cc: bug fixed in G4Sphere::SurfaceNormal for the case kNETheta.
327  Fixes problem report #290.
328
329May 18, 2001   G.Cosmo                   geom-solids-csg-V03-01-02
330- Added G4CSGDEBUG preprocessor flag to discriminate for debug verbosity
331  specific to CSG solids. Included in G4Exception of DistanceToOut() for
332  "point p is outside" in G4Box, G4Cons, G4Tubs.
333
334Apr 20, 2001   G.Cosmo                   geom-solids-csg-V03-01-01
335- Updates for migration to STL vector.
336  Modified files: G4Box.cc, G4Cons.cc, G4Para.cc, G4Sphere.cc,
337                  G4Torus.cc, G4Trap.cc, G4Trd.cc, G4Tubs.cc.
338  Require coworking with the rest of geometry-V03-01-00.
339
340Apr 18,   01   V. Grichine               geom-solids-csg-V03-01-00
341- G4Trap.cc:
342  o Fixed memory leak in CalculateExtent() for creation of vertices in
343    case of finite rotation. (courtesy of D.Williams)
344  o Removed useless inclusion of math.h.
345
346Feb 21,   01   V. Grichine               geom-solids-csg-V03-00-03
347- G4Tubs.cc:
348  o Fixed bug in function Inside(p) in computation of pPhi
349    for points at phi = 0 if the (start phi)+(delta phi) is at phi = 0.
350  o Temporarly modified CalculateExtent(...), now simply based on
351    G4Box::CalculateExtent(...). Updated unit test testG4Tubs.cc.
352
353Feb 01,   01   V. Grichine               geom-solids-csg-V03-00-02
354- G4Box: introduced checks against negative (or <2*kCarTolerance) dimensions
355  in methods SetXHalfLength(), SetYHalfLength() and SetZHalfLength().
356
357Jan 29,   00   G. Cosmo                  geom-solids-csg-V03-00-01
358- G4Box: introduced fixes to algorithm for computation of rotated vertices
359  in CalculateExtent() as previously committed in tag geom-solids-csg-V02-00-10.
360- G4Torus: extracted logic for G4PolynomialSolver now included in
361  global/HEPNumerics. Coworks with tag global-V03-00-02.
362- Added dependency to global/HEPNumerics in GNUmakefile.
363
364Jan 18,   00   V. Grichine               geom-solids-csg-V03-00-00
365- Fixed condition from (pPhi<0) to (pPhi<-0.5*kAngleTolerance) in
366  G4Tubs::Inside(p). Fixes problem report #198.
367
368Dec 07,   00   V. Grichine               geom-solids-csg-V02-00-14
369- G4Tubs.cc: corrections in phi-section algorithm of Inside(p).
370
371Dec 01,   00   G. Cosmo                  geom-solids-csg-V02-00-13
372- Increased basic number of iterations from 8 to 12 for Newton algorithm
373  in G4Torus.cc to assure root retrivial.
374
375Nov 28,   00   V. Grichine               geom-solids-csg-V02-00-12
376- Bug fixed in G4Tubs::Inside(p) for analysis of phi positioning when
377  on +-fDz surface.
378
379Nov 20,   00   G. Cosmo                  geom-solids-csg-V02-00-11
380- Fixes to remove warnings from "-Wall -ansi -pedantic" g++ compiler options:
381  o commented out variables declared and not used.
382  o fixed declaration of variables used before being initialised.
383  o fixed order of initialisation of member data in constructors.
384  o fixed usage of unsigned-int (size_t) for array indeces.
385- NB: based on tag geom-solids-csg-V02-00-09.
386
387Nov 16,   00   V. Grichine               geom-solids-csg-V02-00-10
388- G4Box.cc: introduced fixes to algorithm for computation of rotated vertices
389  in CalculateExtent(). (D.Williams)
390
391Nov 10,   00   G. Cosmo                  geom-solids-csg-V02-00-09
392- G4Torus.cc: removed debug print-out which was still included by mistake
393  in constructor.
394
395Nov 02,   00   G. Cosmo                  geom-solids-csg-V02-00-08
396- QA code revision and cleanup (+fixes from CodeWizard filtering):
397  o Removed virtual keyword from GetEntityType() concrete function.
398  o General cosmetics.
399
400Oct 31,   00   V. Grichine               geom-solids-csg-V02-00-07
401- G4Tubs::DistanceToOut(p,v,...):
402  o Initialised sr and sphi to kInfinity and re-introduced additional
403    condition on check for Rmin intersection (t2 >= 0).
404
405Oct 26,   00   G. Cosmo                  geom-solids-csg-V02-00-06
406- G4Cons::DistanceToOut(p,v): leave out warning if point is outside.
407
408Oct 23,   00   G. Cosmo                  geom-solids-csg-V02-00-05
409- G4Tubs::DistanceToOut(p,v,...):
410  o Still correction to thickness of conical surfaces. (V.Grichine)
411  o Commented-out additional condition on check for Rmin intersection
412    (t2 >= 0), recently introduced (roi2).
413    Requires further investigation !!
414- G4Torus:
415  o Introduced more stable numerical method (Newton-based) for computing
416    roots of equations in DistanceToIn() and DistanceToOut(). (E.Medernach)
417
418Oct 18,   00   V. Grichine               geom-solids-csg-V02-00-04
419- G4Cons.cc, G4Tubs.cc:
420  added check against negative distance returned by DistanceToIn/DistanceToOut.
421- G4Cons.cc:
422  added correction for thickness of conical surfaces, remarkable for big
423  opening angles, in DistanceToIn/DistanceToOut functions.
424
425Oct 05,   00   V. Grichine               geom-solids-csg-V02-00-03
426- G4Cons.cc:
427  o fix in DistanceToIn(p,v): corrected condition on conical surface to
428    consider a real projection of the conical surface thickness on XY
429    plane (0.5*kCarTolerance*secRMin instead of 0.5*kCarTolerance), when
430    dealing with cons with large opening angle.
431  o Updated unit test testG4Cons2.cc.
432
433Aug 16,   00   V. Grichine               geom-solids-csg-V02-00-02
434- G4Cons.cc:
435  o fix in constructor to check if one of the Rmin is equal to 0,
436    if so, it will be set to 1e3*kRadTolerance.
437  o Deactivated call to G4Exception in DistanceToOut(p) if p is outside,
438    replaced by simple warning.
439- G4Tubes.cc, G4Box.cc:
440  o Deactivated call to G4Exception in DistanceToOut(p) if p is outside,
441    replaced by simple warning.
442
443Aug 08,   00   V. Grichine               geom-solids-csg-V02-00-01
444- G4Cons.cc, G4Tubs.cc:
445  o fixes to DistanceToOut(p,v,...) to make roots of quadratic equations
446    more stable.
447  o added check if point is outside in G4Tubes::DistanceToOut(p),
448    some code formatting.
449
450Jul 27,   00   V. Grichine               geom-solids-csg-V02-00-00
451- G4Cons.cc:
452  o added more diagnostics in DistanceToOut(p)
453  o cosmetics changes
454- Updated unit test for G4Cons.
455
456Jun 22,   00   V. Grichine               geom-solids-csg-V01-01-04
457- G4Box.cc:
458  o added safety against call from outside in DistanceToOut(p)
459  o added more diagnostics before exception in DistanceToOut(p,v,...)
460  o cosmetics changes
461- G4Torus[.hh.cc]:
462  o added new alternative functions SolveBiQuadratic/CubicNew.
463  o fix in SolveBiQuadratic() for ambiguous expression in looping index
464    detected by Insure++.
465- Updated unit tests testG4Torus and testG4Trd.
466
467May 17,   00   V. Grichine               geom-solids-csg-V01-01-03
468
469- G4Tubs.cc:
470  o introduced fix in DistanceToOut(p,v,...) in computation of xi, yi for
471    (sphi >= -0.5*kCarTolerance). This fixes problem reports #76 and #91.
472  o added more diagnostics in case of invalid enum for DistanceToOut.
473- Updated unit test for G4Tubs.
474
475May 05,   00   V. Grichine               geom-solids-csg-V01-01-02
476
477- G4Box.cc, G4Trd.cc:
478  o modified DistanceToIn(p,v) to return 0 distance in case computed
479    value is less than 0.5*kCarTolerance.
480  o Cosmetic changes.
481- Updated unit tests for G4Box and G4Trd.
482
483Apr 11,   00   J. Allison
484
485- Removed implementations of GetExtent in most sub-classes of G4VSolid (a
486  default implementation exists in G4VSolid).
487- All implementations of DescribeYourselfTo (G4VGraphicsScene& scene) const
488  now correctly written: scene.AddThis(*this).
489
490Apr 05,   00   G. Cosmo                  geom-solids-csg-V01-01-01
491 - G4Tubs.cc: fixed bug in function Inside(p).
492              Removed (commented) in the code umproper addition of 2PI
493              to Phi-angle particle (V.Grichine)
494 - G4Hype[.hh.cc]: fixed several longstanding issues and bring methods
495                   into compliance with specifications  (D.Williams)
496 - Moved to "specific" the following classes:
497   G4ClippablePolygon, G4EnclosingCylinder, G4Hype, G4PolyPhiFace,
498   G4Polycone, G4PolyconeSide, G4Polyhedra, G4PolyhedraSide,
499   G4ReduciblePolygon, G4IntersectingCone, G4SolidExtentList,
500   G4VCSGface, G4VCSGfaceted.
501 - Moved testG4Hype.cc and testG4Polycone.cc from CSG/test to
502   specific/test
503 - Moved generic tests "SBT" and "Fred" one level up to solids/test.
504 - Organised class description comments for the Software Reference Manual
505   in all headers.
506
507Mar 23,   00   G. Cosmo                  geom-solids-csg-V01-01-00
508 - Tagged.
509
510Mar 22,   00   D. Williams
511 - G4PolyhedraSide.cc: fixed bug in G4PolyhedraSide::Normal(...).
512   The method Normal(...) (used by G4VCSGfaceted::SurfaceNormal) was not
513   filling in the argument bestDistance. This fixes a bug observed in
514   G4Polyhedra::SurfaceNormal.
515
516Mar 14,   00   V. Grichine
517 - Added diagnostics in G4Cons, G4Sphere and G4Torus in function
518   DistanceToOut(p,v,...).
519
520Mar 03,   00   G. Cosmo                   geom-solids-csg-V01-00-05
521 - Minor fixes to unit tests to make them up-to-date with recent
522   development versions (already included in tag geometry-V01-00-00a).
523 - G4PolyconeSide.cc, G4PolyhedraSide.cc: added explicit cast to G4int
524   to avoid warnings on Linux.
525
526Jan 19,   00   G. Cosmo                   geom-solids-csg-01-00-04
527 - Fixed bug in DistanceToIn(p,v). Modified files: G4Trap.cc and
528   testG4Trap.cc. (V.Grichine)
529 - Syncronized file versions with HEAD (essentially CVS headers changes).
530 - Fixes for missing migration on HEAD related to some files in test/fred
531   and test/SBT.
532 
533Nov 17,   99   J. Apostolakis             geom-solids-csg-01-00-03
534 - Tagged
535
536Nov 17,   99   V. Grichine
537 - Added initialisation to Eside "side" variable in DistanceToOut(p,v)
538   in CSG solids   -->   Problem report from D.C. Williams, BaBar
539 - A check in G4Trap Makeplane added.
540
541Nov 10,   99   J. Apostolakis             geom-solids-csg-01-00-02-cand
542 - Included  David Williams' modifications to
543   G4IntersectingCone.cc, G4PolyconeSide.cc and G4VCSGfaceted.cc
544   and to  test/SBT/SBT.cc  and  test/SBT/polycone.geant4
545
546Nov 10,   99   J. Apostolakis             geom-solids-csg-01-00-01
547 - Tagged
548
549May 18,   99   David Williams
550 - Replaced 1/DBL_MAX with DBL_MIN (valid correction, seen in tests for STL)
551   in G4PolyPhiFace.cc, G4PolyconeSide.cc and G4PolyhedraSide.cc
552
553Apr 29,   99   David Williams
554 - G4Polyhedra and G4Polycone (and G4VCSGfaceted) modified:
555         1. Implemented correct copy constructors and assignment operators.
556         2. Fix some leaks for tracks that pass exactly through an edge.
557            Some leaks still remain: particularly if a track passes through
558             a corner and between the curved edges of G4Polycone.
559         3. G4Polyhedra argument numSide changed to G4int (from G4double)
560
561Apr 13,   99   Vladimir Grichine and Simone Giani
562 - Minor consistency fix to 8 basic CSG solids:
563   Tolerance used in calculation of extent but not in one place,
564   and not another - this tripped up the client code.
565
566Feb 16,   99   David Williams
567 - Repaired bugs in G4Polycone (G4PolyconeSide.cc) as found in
568   test/testG4Polycone and missed in below.
569 - Updated definition of DistanceToIn(p) and DistanceToOut(p) to
570   return zero when the point p is on the surface of the solid.
571
572Feb 12,   99   David Williams
573 - src/G4PolyconeSide.cc updated (revision 1.4) to fix a bug discovered by
574   test/testG4Polycone.
575
576Feb   9,  99   David C. Williams      (davidw@scipp.ucsc.edu)
577 - I've committed new versions of the CSG Polycone and Polyhedra in the
578   geant4 repository, including a new utility class called
579   G4ReduciblePolygon. The new versions fix several subtle bugs which my 
580   "test3" batch geometry testing code uncovered. In addition, the new class
581   G4ReduciblePolygon is used to run strict tests on the validity of input
582   parameters.
583   To fix a bug in Polyhedra, I had to back out some fancy code that
584   allowed it to calculate intersections at a speed that was independent of
585   the number of sides. The new version now runs at a speed proportional to
586   the number of sides, and is thus much slower for polyhedras with many
587   sides. I can fix this, but I thought it would be best to get the bug fixes
588   in as soon as possible.
589
590Feb  10,  99   John Apostolakis
591 - History file created.
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