# Category geommng History

See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
which **must** added in reverse chronological order (newest at the top).
It must **not** be used as a substitute for writing good git commit messages!

-------------------------------------------------------------------------------

## 2025-10-28 Gabriele Cosmo (geommng-V11-03-12)
- Reorganised and enriched comments in headers to follow Doxygen style.
- Removed empty source files for G4ErrorSurfaceTarget and G4ErrorTanPlaneTarget.
- Moved inline implementations to .icc file for G4UAdapter.

## 2025-10-13 Ben Morgan (geommng-V11-03-11)
- Prevent data races in parallel voxelisation.

## 2025-09-09 John Apostolakis (geommng-V11-03-10)
- Re-engineered voxelisation parallelism in G4GeometryManager, by creating
  the new helper class 'G4VoxelisationHelper'.

## 2025-08-19 Gabriele Cosmo (geommng-V11-03-09)
- In G4BoundingEnvelope, simplified for loops ranges in TransformVertices(),
  by applying clang-tidy 'modernize-loop-convert' check.

## 2025-03-29 Gabriele Cosmo (geommng-V11-03-08)
- In G4GeometryManager, removed redundant declaration of method
  ChooseSequentialOptimisation().

## 2025-03-24 Evgueni Tcherniaev (geommng-V11-03-07)
- G4VSolid: Set seed in EvaluateCubicVolume() and EvaluateSurfaceArea() to
  ensure reproducibility of the resulting value.

## 2025-03-05 Gabriele Cosmo (geommng-V11-03-06)
- Applied clang-tidy to G4GeometryManager and some code cleanup.
  Moved additional checks/warnings under verbosity level.
- Additional readability clang-tidy fixes to code.

## 2025-03-03 Gabriele Cosmo (geommng-V11-03-05)
- In G4VSolid::EstimateCubicVolume(..), initialise local variable to zero
  to silence invalid false positive warnings reported in compilation of CMSSW.

## 2025-02-25 John Apostolakis (geommng-V11-03-04)
- Enabled voxelisation parallelism by default in G4GeometryManager, when
  MT/tasks are enabled. Enabled also for potential 2nd (and later) calls.
- In G4GeometryManager, fix in ConfigureParallelOptimisation() to reset
  logical volumes iterator; in ReportWorkerIsDoneOptimising(), added checks
  to report fatal error if incorrect number of volumes was voxelised, and warns
  if number of workers reporting is not as expected.
  In ConfigureParallelOptimisation(), reports on the times it was called.

## 2025-02-20 Gabriele Cosmo (geommng-V11-03-03)
- Applied clang-tidy fixes fixes (readability, modernization, performance, ...)
  based on llvm version 19.1.17.

## 2025-02-03 Gabriele Cosmo (geommng-V11-03-02)
- G4UAdapter: removed fake default constructor, clearing compilation warnings
  on gcc-14.

## 2025-01-24 Evgueni Tcherniaev (geommng-V11-03-01)
- G4GeomTools: added HyperboloidSurfaceArea()

## 2025-01-05 Evgueni Tcherniaev (geommng-V11-03-00)
- G4GeomTools: added HypeStereo() and TwistedTubeBoundingTrap()

## 2024-08-26 Gabriele Cosmo (geommng-V11-02-06)
- G4GeometryManager: temporarily disable default parallel optimisation.
  Fixed spelling for method OptimiseInParallel(..).

## 2024-08-07 Gabriele Cosmo (geommng-V11-02-05)
- Fixed broken condition for enabling voxels statistics report in
  G4GeometryManager::UndertakeOptimisation().
- Further cleanup in G4GeometryManager for usage of static data.
  Fixed spelling on data members.
- Access G4GeometryManager singleton through its GetInstance() in stores.

## 2024-08-06 Gabriele Cosmo (geommng-V11-02-04)
- In G4GeometryManager, removed unnecessary static qualifier for some methods
  and ordered methods declarations in header.

## 2024-06-17 Gabriele Cosmo (geommng-V11-02-03)
- Removed G4SmartVoxelProxy source file, as now empty.
- Minor code cleanup/indentation.

## 2024-06-02 John Apostolakis (geommng-V11-02-02)
- New capability to run voxel optimisation in threads (off by default).
  First version, parallelises only over volumes. The user can call
  RequestParallelOptimisation(optimise, verbose) from G4GeometryManager
  to turn it on/off. Set verbose=true to obtain the volumes with biggest
  contribution to memory size and CPU time for voxelisation.
  Added new method BuildOptimisationsParallel() to be called by
  G4WorkerRunManager to initialize. Added method ReportVoxelInfo() to write out
  for verification. Checked with simple and complex/large geometries.

## 2024-05-29 Evgueni Tcherniaev (geommng-V11-02-01)
- Added new methods GetNumOfConstituents() and IsFaceted().

## 2024-04-02 Gabriele Cosmo (geommng-V11-02-00)
- Applied trivial clang-tidy fixes to G4ErrorTarget, i.e. use of default
  constructor.

## 2023-10-06 Gabriele Cosmo (geommng-V11-01-05)
- Restore virtual methods in G4TouchableHistory to allow for backwards
  compatibility with visualization modeling code.

## 2023-09-04 Gabriele Cosmo (geommng-V11-01-04)
- Made G4TouchableHistoryHandle a typedef of G4TouchableHandle.

## 2023-08-31 Gabriele Cosmo (geommng-V11-01-03)
- Removed inheritance level for G4TouchableHistory and making G4VTouchable a
  simple typdef of G4TouchableHistory, therefore no longer acting as base class.
- Imported G4NavigationHistory, G4NavigationHistoryPool, G4NavigationLevel and
  G4NavigationLevelRep classes and translation units from "volumes" module.

## 2023-05-08 Gabriele Cosmo (geommng-V11-01-02)
- Applied clang-tidy fixes (readability, modernization, performance, ...).

## 2023-03-22 Gabriele Cosmo (geommng-V11-01-01)
- G4Region: issue fatal exception if attempting to add a root logical volume
  which is already set as root for another region.

## 2023-01-09 Gabriele Cosmo (geommng-V11-01-00)
- G4LogicalVolume: use std::shared_ptr for handling visualization attributes.
  Ignore calls to SetVisAttributes() from worker threads.

## 2022-11-16 Gabriele Cosmo (geommng-V11-00-09)
- Fixed more compilation warnings for implicit type conversions on
  macOS/XCode 14.1 in G4SmartVoxelNode source.

## 2022-11-10 Gabriele Cosmo (geommng-V11-00-08)
- Fixed compilation warnings for implicit type conversions on macOS/XCode 14.1.

## 2022-10-04 Gabriele Cosmo (geommng-V11-00-07)
- Fixed compilation warnings on Intel/icx compiler for variables set but not
  used.

### 2022-08-16 Gabriele Cosmo (geommng-V11-00-06)
- Added protection in G4GeometryManager for Open/CloseGeometry() to
  be executed only by master thread.
  Addressing problem report #2502.

## 2022-07-03 Ben Morgan (geommng-V11-00-05)
- Add headers for directly used classes from global/HEPGeometry

## 2022-04-13 Ben Morgan (geommng-V11-00-04)
- Add missing dependency on G4heprandom

## 2021-03-05 Makoto Asai (geommng-V11-00-03)
- G4SolidStore, G4LogicalVolumeStore, G4PhysicalVolumeStore:
  extend getter methods to optionally return the last-found object.

## 2021-02-05 Evgueni Tcherniaev (geommng-V11-00-02)
- G4BoundingEnvelope: get rid of "new" operators

## 2021-01-19 Evgueni Tcherniaev (geommng-V11-00-01)
- G4ReflectedSolid: added GetCubicVolume(), GetSurfaceArea()

## 2021-12-10 Ben Morgan (geommng-V11-00-00)
- Change to new Markdown History format

---

# History entries prior to 11.0

September 28, 2021 G.Cosmo (geommng-V10-07-07)
- Use G4Allocator to dynamically allocate nodes and proxies for the
  voxels optimisation structure. Should help reducing memory fragmentation.

September 24, 2021 G.Cosmo (geommng-V10-07-06)
- Basic clang-tidy review of code.

August 31, 2021 B.Morgan (geommng-V10-07-05)
- Provide operator<< as a free function for G4UAdapter to support Geant4Py
- Make operator<< for G4VSolid a free function

June 15, 2021  J.Apostolakis (geommng-V10-07-04)
- G4UAdapter: added std::ostream& operator << to avoid compilation clash
  between similar methods for G4VSolid and VecGeom UnplacedVolume.

April 12, 2021 G.Cosmo (geommng-V10-07-03)
- Fixed potential thread contention in stores when clearing/updating maps
  at initialisation.

April 9, 2021 G.Cosmo (geommng-V10-07-02)
- Added missing implementation of inline method GetMap() in stores.

March 30, 2021 B.Morgan (geommng-V10-07-01)
- Migrate sources.cmake to modular build API

March 23, 2021 G.Cosmo (geommng-V10-07-00)
- Added map for fast search based on name in G4SolidStore, G4RegionStore,
  G4logicalVolumeStore and G4PhysicalVolumeStore. Pointers to elements are
  stored in the map as buckets, grouping elements with same name.

November 8, 2020 E.Tcherniaev (geommng-V10-06-06)
- Bug fix in calculation of normal in G4UAdapter::DistanceToOut()

October 28, 2020 Ben Morgan (geommng-V10-06-05)
- Remove include of obsolete CMake module

May 28, 2020 B.Morgan (geommng-V10-06-04)
- When using new CMake build, add location of generated G4GeomConfig.hh
  header to public include directories of G4geometrymng module.

April 30, 2020 Gabriele Cosmo (geommng-V10-06-03)
- Adopt new convention for location of headers in VecGeom for wrappers.

April 17, 2020 Gabriele Cosmo (geommng-V10-06-02)
- Added deleted declarations for copy constructor and assignment operators
  on store singletons. Based on GitHub PR#12 suggestion.

April 2, 2020 Guilherme Amadio (geommng-V10-06-01)
- Reduce size of LogicalVolumes by reordering class members

December 10, 2019 Ben Morgan (geommng-V10-06-00)
- Cleanup CMake build, removing obsolete granular library options and
  explicit include_directories.

November 15, 2019 Gabriele Cosmo (geommng-V10-05-15)
- Fixed cases of implicit type conversions from size_t to G4int.

November 11, 2019 J.Apostolakis (geommng-V10-05-14)
- G4LogicalVolume: Added method 'ChangeDaughtersType' to change the
  volume type for CharacterisedDaughters.  It enables the user to turn
  over responsibility for navigation in that volume to an external navigator.
  ( This is for use when one or more daughter volumes are created as an
    existing physical volume types (typically G4PVPlacement). )
  It can also be used enable to create a (logical) volume which containts a
  mixture of existing G4-toolkit physical volume types, and user-created
  'external' physical volume (with type code 'kExternal').
  G4 types must be created first, and then ChangeDaughtersType must be called
  to change the mother's attribute to 'kExternal'.
  Note: only one type of sub-navigator will be called to find a track's
  intersection (or the location of a point) in all daughters of one mother
  volume. The sub-navigator chosen will correspond to the volume type assigned.

October 29, 2019 J.Apostolakis (geommng-V10-05-13)
- Use stored volume type for G4LogicalVolume::CharacterisedDaughters,
  after fix to correctly store type of G4PVParameterised volume.
  Requires geomvol-V10-05-07.

October 23, 2019 J.Apostolakis, G.Cosmo (geommng-V10-05-12)
- Revised G4LogicalVolume to cope with 'external' type of physical volumes.
  Note: these revisions are independent and backward compatible.
- Co-works with geomnav-V10-05-11 (external navigation).

October 23, 2019 J.Apostolakis (geommng-V10-05-11)
- Changed G4VPhysicalVolume::VolumeType() to be virtual.
  Preparing for addition of External Navigation, which adds an 'external'
  physical volume type (for use with an External sub-Navigator).
  Note: This is used by G4Navigator's CharacteriseDaughters() method.
  The old method derived this value from response of IsReplicated()
  virtual method and, in the case of replica/division/parameterised volumes,
  information from a call to the 2nd virtual method ReplicationData.
- G4VPhysicalVolume copy constructor and assignment operator are now 'deleted'.
- Requires and co-works with geomvol-V10-05-05, geomdiv-V10-05-02.

September 14, 2019 E.Tcherniaev (geommng-V10-05-10)
- Use G4QuickRand() in G4VSolid::EstimateCubicVolume() and
  G4VSolid::EstimateSurfaceArea()

August 22, 2019 G.Cosmo (geommng-V10-05-09)
- Use pre-increment wherever possible.

July 11, 2019 G.Cosmo (geommng-V10-05-08)
- Implemented c++11 revision: nullptr, auto, inline data initialisation,
  const iterators, alias using statements.
- Code cleanup and formatting.

May 29, 2019 G.Cosmo (geommng-V10-05-07)
- Fixed minor Coverity defects.

May 20, 2019 G.Cosmo (geommng-V10-05-06)
- Defined move constructor and move assignment operator for G4AffineTransform.

May 14, 2019 B.Morgan (geommng-V10-05-05)
- Use header-based #define/undef symbols to configure VecGeom replacements
- G4GeomConfig.hh: Generated header configuring #defines using CMake settings
- G4GeomTypes.hh: "Interface" header to support old GNUmake system. All Geant4
  code should #include this rather than the generated header, which is only
  present in CMake mode.
- G4UAdapter.hh: Add inclusion of G4GeomTypes.hh
- See also cmake-V10-05-03

May 13, 2019 G.Cosmo (geommng-V10-05-04)
- Replaced deprecated std::binary_function calls with lambdas in
  G4SmartVoxelStat and G4GeometryManager.
  Courtesy of S.Losilla, from GitHub PR#8.

April 29, 2019 G.Cosmo (geommng-V10-05-03)
- Properly initialise to zero splitted data in G4VPhysicalVolume.

April 23, 2019 G.Cosmo (geommng-V10-05-02)
- G4GeomSplitter: re-enabled use or realloc()/free() and memcpy(), after
  adapting G4VPhysicalVolume MT splitted data to adopt only trivial types
  for allocation.

March 8, 2019 G.Cosmo (geommng-V10-05-01)
- G4LogicalVolume: in AddDaughter() avoid propagating pointer to field-manager
  if this is null. Addressing problem report #2145.

January 30, 2019 A.Dotti, G.Cosmo (geommng-V10-05-00)
- Use reverse_iterator in G4SolidStore::DeRegister() in order to speedup
  partial deregistration on setups with many solids instances.
- G4Region: added possibility to disable search in the tree in
  AddRootLogicalVolume() for speeding up process in complex flat geometries.

October 18, 2018 E.Tcherniaev (geommng-V10-04-08)
- G4VSolid: improved setting of surface thickness in EstimateSurfaceArea().

October 12, 2018 E.Tcherniaev (geommng-V10-04-07)
- G4VSolid: more precise calculation of distance for inside points in
  EstimateSurfaceArea().

October 10, 2018 E.Tcherniaev (geommng-V10-04-06)
- G4VSolid: reimplemented EstimateSurfaceArea() for approximate calculation
  of the surface area of a solid, by estimating volume of a thin shell
  surrounding the surface using Monte-Carlo method; algorithm providing more
  accurate estimation without performance penalty.

May 16, 2018 G.Cosmo (geommng-V10-04-05)
- G4GeomSplitter: replaced use or realloc()/free() and memcpy() with
  normal allocation/deallocation through G4Allocator. Also addressing
  compilation warnings on gcc-8.1.

May 11, 2018 E.Tcherniaev (geommng-V10-04-04)
- G4AffineTransform: further optimised InverseProduct(), for the case where
  tf2 is a pure translation.

May 7, 2018 E.Tcherniaev (geommng-V10-04-03)
- G4AffineTransform: added explicit copy constructor, assignment and destructor;
  InverseProduct() has been optimised, now it does 36 multiplications instead
  of 45; added methods for inverse transformation: InverseTransformPoint(),
  InverseTransformAxis(), InverseNetRotation() and InverseNetTranslation().

April 24, 2018 E.Tcherniaev (geommng-V10-04-02)
- G4AffineTransform: minor optimisation to multiplication of matrix by vector,
  to make use of temporaries in accessing vector components.

April 11, 2018 G.Cosmo (geommng-V10-04-01)
- Replaced USOLIDS_LIBRARIES with VECGEOM_LIBRARIES in sources.cmake.

December 19, 2017 G.Cosmo (geommng-V10-04-00)
- Fixed self-consistency in G4VVolumeMaterialScanner header (missing #include).
  Thanks to Raphael Isemann for reporting this.

November 10, 2017 P.Arce (geommng-V10-03-22)
- Bug report 2011: precision correction in G4ErrorPlaneSurfaceTarget.cc

October 16, 2017 G.Cosmo                   geommng-V10-03-21
- Removed G4USolid base wrapper for USolids. Only native VecGeom
  implementation through G4UAdapter is now supported.
  Requires corresponding tag "geom-specific-V10-03-20".
- Enable proper implementation of operator=() in G4UAdapter.

October 11, 2017 E.Tcherniaev              geommng-V10-03-20, 19
- G4GeomTools: added PointInPolygon() function, to dtermine the position of a
  point relative to a polygon in 2D.

June 9, 2017 G.Cosmo                       geommng-V10-03-18
- Corrections and improvements to G4UAdapter.

June 1, 2017 G.Cosmo                       geommng-V10-03-17
- Made G4UAdapter compliant with latest modifications in VecGeom for
  renaming of GetPointOnSurface() method to SamplePointOnSurface().

May 24, 2017 G.Cosmo                       geommng-V10-03-16
- Renamed ambiguous name Extent() in G4VSolid to BoundingLimits().
  Modified G4ReflectedSolid accordingly.
  Change required in order to avoid signature conflict with VecGeom
  in G4U* wrappers.

May 24, 2017 G.Cosmo                       geommng-V10-03-15
- Added adapter class G4UAdapter for interfacing G4U* wrappers with VecGeom.
  Will replace G4USolid bridge class, deprecating USolids API in favour of
  direct use of VecGeom signatures and removal of one extra-level of
  indirection/inheritance.

May 9, 2017 G.Cosmo                        geommng-V10-03-14
- Moved few key methods to be inline in G4USolid.

March 28, 2017 G.Cosmo                     geommng-V10-03-13
- Enabled deletion of solids in G4SolidsStore destructor also for MT mode.

March 22, 2017 G.Cosmo                     geommng-V10-03-12
- Define IsGeometryClosed() in G4GeometryManager as a static method, to
  avoid call to GetInstance(). Made related Boolean flag thread-local.

March 21, 2017 G.Cosmo                     geommng-V10-03-11, 10
- Restore singleton pointer to thread-local and provide simple accessor to it.

March 17, 2017 G.Cosmo                     geommng-V10-03-09
- Define G4GeometryManager as normal singleton.

March 15, 2017 G.Cosmo                     geommng-V10-03-08
- Refined deletion of subinstance offsets in stores.

March 14, 2017 G.Cosmo                     geommng-V10-03-07
- Removed additional wrong lock in G4GeomSplitter for function
  SlaveReCopySubInstanceArray().
- Disable cleaning of subinstance offsets on Windows.

March 10, 2017 G.Cosmo                     geommng-V10-03-06,5,4,3
- Fixed static memory leak from G4LogicalVolume, G4VPhysicalVolume and
  G4Region, for offsets allocated in sequential mode.

February 27, 2017 E.Tcherniaev             geommng-V10-03-02
- Added functions EllipsePerimeter(), EllipticConeLateralArea() and
  comp_ellint_2() to G4GeomTools.

December 16, 2016 G.Cosmo                  geommng-V10-03-01
- Fixed compilation warning on gcc-6.2 for last changes in G4GeomTools.

December 14, 2016 E.Tcherniaev             geommng-V10-03-00
- Added methods TriangelAreaNormal(), QuadAreaNormal(), PolygonAreaNormal(),
  ClosestPointOnSegment() and ClosestPointOnTriangle() to G4GeomTools.

November 8, 2016 G.Cosmo                   geommng-V10-02-32
- Fixed header inclusions in G4LogicalCrystalVolume and make use of
  dynamic_cast instead of C-style cast.

November 8, 2016 G.Cosmo                   geommng-V10-02-31
- Again code formatting to G4LogicalCrystalVolume files.

November 7, 2016 E. Bagli                  geommng-V10-02-30
- Modified G4LogicalCrystalVolume for the G4CrystalExtension

November 3, 2016 G.Cosmo                   geommng-V10-02-29
- Added Extent() virtual method to G4VSolid and G4ReflectedSolid (E.Tcherniaev).
- Fixed Coverity defect in G4LogicalVolume::ClearDaughters().

November 1, 2016 E.Tcherniaev              geommng-V10-02-28
- Added function DistancePointSegment() to G4GeomTools class.
- Code formatting in G4LogicalCrystalVolume.

October 26, 2016 E.Tcherniaev              geommng-V10-02-27
- Added new functions SphereExtent(), TriangulatePolygon(), IsConvex() and
  RemoveRedundantVertices() to G4GeomTools class.

October 24, 2016 E.Bagli                   geommng-V10-02-26
- Added class G4LogicalCrystalVolume, representing an extended logical
  volume for crystal description.

October 21, 2016 G.Cosmo                   geommng-V10-02-25
- Moved initialisation of G4GeomSplitter thread-local data to be inline
  along with generic template type.
  Fixing compilation/linking errors on clang-3.9 and XCode-8 on MacOS.
- Added IsConvex() method to G4GeomTools.

October 19, 2016 M.Asai                    geommng-V10-02-24, 23
- G4LogicalVolume: added virtual keyword is to destructor for extended
  yypes in the kernel. Added IsExtended() method.

October 16, 2016 E.Tcherniaev
- New utility class G4GeomTools providing static utility methods for
  geometry related calculations.

October 2, 2016 E.Tcherniaev               geommng-V10-02-22
- G4BoundingEnvelope: take into account four points instead of three in
  CreateListOfPlanes().

September 26, 2016 E.Tcherniaev            geommng-V10-02-21
- G4USolid: make direct use extent from shapes for computing bounding-box
  in CalculateExtent().

September 22, 2016 E.Tcherniaev            geommng-V10-02-20
- Added checks for bounding-box extents in G4USolid.
- Converted fatal exception to warning for CheckBoundingBox() in
  G4BoundingEnvelope. Corrected use of 'const' data to resolve Coverity
  defects.

September 20, 2016 G.Cosmo                 geommng-V10-02-19
- Moved accessors/modifiers for splitter data to non-inline in G4Region,
  G4LogicalVolume, G4VPhysicalVolume.
  Fixing compilation/linking errors on clang-3.9 and XCode-8 on MacOS.

September 9, 2016 E.Tcherniaev
- G4BoundingEnvelope: added QuickCheck() function.

September 2, 2016 E.Tcherniaev             geommng-V10-02-18
- G4BoundingEnvelope: fixed bug in construction of voxel edges.

August 8, 2016 E.Tcherniaev                geommng-V10-02-17
- G4BoundingEnvelope: some improvement of internal consistency in the code.

July 7, 2016 G.Cosmo                       geommng-V10-02-16
- Removed redundant check in G4GeomSplitter::UseWorkArea().
  Addressing problem report #1876.

July 6, 2016 G.Cosmo                       geommng-V10-02-15
- Correction in G4USolid::CalculateExtent() for correct return-type.

June 29, 2016 E.Tcherniaev                 geommng-V10-02-14
- Optimised version of G4BoundingEnvelope.

June 28, 2016 E.Tcherniaev
- Re-implemented CalculateExtent() in G4USolid to use G4BoundingEnvelope;
  removed method CreateRotatedVertices().

June 27, 2016 E.Tcherniaev
- G4AffineTransform: added conversion operator to G4Transform3D and
  simplified implementation of NetRotation() in terms of G4Rep3x3.

June 13, 2016 E.Tcherniaev
- G4ReflectedSolid: new revision of CalculateExtent(), to make use of
  CalculateExtent() from the constituent solid, applying proper transformation.
  Removed use of G4BoundingEnvelope.

June 7, 2016 G.Cosmo                       geommng-V10-02-13
- Initialise 'emin' and 'emax' in G4BoundingEnvelope::CalculateExtent().

June 6, 2016 E.Tcherniaev                  geommng-V10-02-12
- Introduced G4BoundingEnvelope helper class to be used for the calculation
  of the extent of a solid within the limits defined by the G4VoxelLimits
  object.
- Re-implemented CalculateExtent() in G4ReflectedSolid to use new class
  G4BoundingEnvelope.

June 6, 2016 E.Tcherniaev                  geommng-V10-02-11
- G4G4ScaleTransform: simplified signatures in TransformDistance() and
  in InverseTransformDistance(); make use of accessors.

June 1, 2016 G.Cosmo                       geommng-V10-02-10
- Corrected treatment of polyhedron for G4ReflectedSolid to avoid thread
  contention.

May 18, 2016 G.Cosmo                       geommng-V10-02-09, 08
- More simplified code for G4ReflectedSolid; also removed not used cached
  inverse transformation.

May 17, 2016 E.Tcherniaev                  geommng-V10-02-07
- Use G4Normal3D with proper inverse transformation for calculation of
  normals in G4ReflectedSolid.

May 13, 2016 G.Cosmo                       geommng-V10-02-06, 05
- Properly use 3D transformations in G4ReflectedSolid. Removed unused
  affine-transformation data and related methods.
  Corrected GetPolyhedron() for multi-threading.
- Updated unit test visualization macros and UI setup.

May 12, 2016 E.Tcherniaev                  geommng-V10-02-04
- Added transformations for normal vectors in G4ScaleTransform.

April 14, 2016 G.Cosmo                     geommng-V10-02-03
- Added flag for partial use of USolids/VecGeom types.

April 12, 2016 G.Cosmo                     geommng-V10-02-02
- Minor cosmetics to G4USolid.

March 31, 2016 G.Cosmo                     geommng-V10-02-01
- Throw exception in call to CreatePolyhedron() for base class G4USolid.
  Method is now implemented in the concrete wrappers.

March 16, 2016 G.Cosmo                     geommng-V10-02-00
- Added G4ScaleTransform class for Cartesian scaling transformations.
- G4AffineTransform: added inline keywords and fixed formatting.
- In G4USolid, directly call GetEntityType() from wrapper classes for
  CreatePolyhedron().

October 15, 2015 W.Pokorski                geommng-V10-01-07
- Added shadow pointers to shared data structures in G4LogicalVolume
  and G4VPhysicalVolume for exclusive use by object persistency.

October 7, 2015 G.Cosmo                    geommng-V10-01-06
- Protected compilation of G4USolid class with G4GEOM_USE_USOLIDS flag.
- Replaced use of sprintf with C++ streams in G4AffineTransform.

September 14, 2015 G.Cosmo                 geommng-V10-01-05
- Moved EstimateCubiVolume() and EstimateSurfaceArea() to public section
  for specific use-cases and customisation of precision.

August 6, 2015 G.Cosmo                     geommng-V10-01-04
- Checked for potential never-ending loops. No issues found.

June 15, 2015 G.Cosmo			   geommng-V10-01-03
- Return const reference in G4LogicalVolume::GetName().
  Addressing report #1757.

May 5, 2015 A.Dotti			   geommng-V10-01-02
- Use G4Threading::IsMasterThread function as suggested by J.Allison

April 30, 2015 G.Cosmo                     geommng-V10-01-01
- Removed unused data-member in G4LogicalVolume, and fixed minor
  Coverity defect for unitialised member 'fBiasWeight' in constructor.
- Use scoped enum for EnumSide in G4USolid.cc if c++11 enabled.

April 29, 2015 J.Apostolakis
- Added streaming operator <<() to G4AffineTransform.
- Cosmetics to G4RegionStore header.

March 3, 2015 G.Cosmo                      geommng-V10-01-00
- Use accessors x(), y() and z() from UVector3, instead of directly accessing
  its data-members. Co-work with tag "geom-usolids-V10-01-09".

November 27, 2014 G.Cosmo                  geommng-V10-00-06
- Fixed implementation of StreamInfo() for G4USolid.

October 29, 2014 G.Cosmo                   geommng-V10-00-05
- Moved G4USolid bridge class from internal USolids module.

October 3, 2014 G.Cosmo                    geommng-V10-00-04
- Moved constructor for partial voxels refinements from protected to public.

September 25, 2014 W. Pokorski             geommng-V10-00-03
- Some fixes in the default constructor for Root-I/O persistency.

July 11, 2014 A. Dotti			   geommng-V10-00-02
- Solves possible data-race condition in G4GeaomSplitter.

April 10, 2014 G.Cosmo                     geommng-V10-00-01
- Get rid of deprecated 'register' storage class specifier in source files.

March 31, 2014 G.Cosmo                     geommng-V10-00-00
- Fixed operator=() signature in G4LogicalSurface.

December 2, 2013 A.Dotti                   geommng-V09-06-17
- Correctly initialize shadow pointers in G4PhysicalVolume.

December 2, 2013 M.Asai                    geommng-V09-06-16
- Correctly initialize shadow pointers in G4LogicalVolume.

November 30, 2013 M.Asai                   geommng-V09-06-15
- Explicitely initialize data members of G4LVData.

November 27, 2013 J.Apostolakis            geommng-V09-06-14
- Fix in G4GeomSplitter::FreeSlave(): use free() to delete memory
   which was allocated with malloc().

October 18, 2013, A. Dotti                 geommng-V09-06-13
- Bug fixing in G4GeomSplitter::UseWorkspace method
  check if offset pointer is assigned AND different from new value

October 3, 2013 J.Apostolakis              geommng-V09-06-12
- Cleanup of G4LogicalVolume, G4VPhysicalVolume
     Moved long description of helper classes to end of headers.
     Moved macros to icc file.
     Revised source code to use Get/Set methods in place of 'macros'
      introduced with G4MT,  ie G4MT_rot etc
- LogicalVolume: Added new methods, data member
     * new methods AssignFieldManager,
     * Get/Set Solid( G4LVData, .) for potential performance improvement
     * bool fChangedState.

August 27, 2013 G.Cosmo                    geommng-V09-06-11
- Added G4Ellipsoid among solids enabled for parameterisation.

August 22, 2013 G.Cosmo                    geommng-V09-06-10
- Added parameter to specify maximum number of overlap errors to report
  in G4VPhysicalVolume::CheckOverlaps().

August 21, 2013 G.Cosmo                    geommng-V09-06-09
- Added methods G4VPhysicalVolume::VolumeType() and
  G4LogicalVolume::CharacteriseDaughters() to be used by G4Navigator.

July 29, 2013 T.Nikitina                   geommng-V09-06-08
- Fix to G4VSolid::EstimateCubicVolume() to make proper use of specified
  accuracy. Addressing problem report #1493.

June 20, 2013 A.Dotti			   geommng-V09-06-07
- Bug fix for MT: set static TLS pointer G4GeomSplitter::offset to 0 after
  delete in split-class mechanism G4GeomSplitter::FreeSlave

March 12, 2013 G.Cosmo                     geommng-V09-06-06
- Removed thread-locality in obsolete G4VPhysicalVolume::GetObjectRotation()
  implementation.

March 12, 2013 G.Cosmo                     geommng-V09-06-05
- Added public accessors for MT data to G4LogicalVolume, G4VPhysicalVolume
  and G4Region.

March 11, 2013 G.Cosmo                     geommng-V09-06-04
- Redefined G4DLL_API to G4GEOM_DLL to avoid cases of macro redefinition.

March 08, 2013  G.Cosmo                    geommng-V09-06-03, geommng-V09-06-02
- Renamed G4MT macros to safer ID.
- Moved MT data to protected in G4VPhysicalVolume.

March 07, 2013  G.Cosmo                    geommng-V09-06-01
- Added splitter class G4GeomSplitter from original MT transitory class
  introduced in "global" module.
- Added geomwdef.hh header including definition of G4DLL_API flag for
  import/export of symbols for Windows DLL build.
- Cleanup of code from MT automatic changes.

December 02, 2012  J.Allison               geommng-V09-06-00
- Removed NURBS.

November 28, 2012  G.Cosmo                 geommng-V09-05-04
- Get rid of explicit inclusion of costants header from meshdefs.hh.

August 15, 2012  V.Ivantchenko             geommng-V09-05-03
- Add base materials in G4Region::ScanVolumeTree() to the list of region
  materials, when applicable.

June 11, 2012  G.Cosmo                     geommng-V09-05-02
- Explicitly use inclusion of headers for system of units and physical
  constants, in plan to remove implicit inclusion from globals.hh.

April 4, 2012  G.Cosmo                     geommng-V09-05-01
- Fixed spurious cases of hidden variable visibility (-Wshadow
  compilation option on gcc compiler).

April 4, 2012  G.Cosmo                     geommng-V09-05-00
- Extended one comment to G4VSolid header.

August 24, 2011  G.Cosmo                   geommng-V09-04-04
- Migrated to new G4Exception scheme for warnings and errors.
- Defined scheme for warnings/errors coding:
  + 1xxx for warnings, 0xxx for errors.
  Code numbering:
  + 0001: not supported or implemented features;
  + 0002: invalid setup/construct;
  + 0003: invalid run condition;
  + 1001: incorrect setup; automatically adapted.
  + 1002: notification.
- Made default argument for G4RegionStore::UpdateMaterialList().

August 10, 2011  M.Asai                    geommng-V09-04-03
- Introducing parallel layered mass geometry. Material is now scanned for
  all the regions in all defined worlds. Modified G4Region and G4RegionStore.

May 12, 2011  G.Cosmo                      geommng-V09-04-02
- Fixed trivial compilation warnings detected with gcc-4.6.0.

March 31, 2011  G.Cosmo                    geommng-V09-04-01
- Fix in G4LogicalVolume::AddDaughter() for proper propagation settings
  of local field manager. Avoid forcing propagation to all daughters when
  a local field manager is set already for the new daughter.
  Addressing problem report #1183.

March 21, 2011  G.Cosmo                    geommng-V09-04-00
- Use internal G4 header for physical constants in meshdefs.h.

October 19, 2010  G.Cosmo                  geommng-V09-03-05
- Added Clone() virtual method to G4VSolid, to return a pointer to a
  dynamically allocated copy of the solid. To be used by Geant4-MT.
- Added copy-ctr and assignment operator to G4ReflectedSolid, now also
  implementing the Clone() method.

September 6, 2010  G.Cosmo                 geommng-V09-03-04
- Fixed false-positive null forward case in G4SmartVoxelHeader.

July 16, 2010  G.Cosmo                     geommng-V09-03-03
- Fixed compilation errors for code within G4GEOMETRY_VOXELDEBUG flag
  in G4GeometryManager and G4SmartVoxelHeader.
- Added printout of voxel limits in G4SmartVoxelHeader::Buildnodes() and
  removed protection on node width previously introduced.

July 13, 2010  G.Cosmo                     geommng-V09-03-02
- G4SmartVoxelHeader: added protection against rare cases of zero computed
  node width in BuildNodes().

July 2, 2010  G.Cosmo                      geommng-V09-03-01
- G4LogicalSurface: added missing initialisation for 'theTransRadSurface'
  data member. Made virtual destructor and constructors not inline.
- G4ErrorTarget: added missing default initialisation of a data member.
- G4SmartVoxelHeader: added return statement after exceptions in methods
  BuildVoxelsWithinLimits() and BuildNodes(); fixed case of invalid iterator
  in deletion of test slices in BuildVoxelsWithinLimits(); added protection
  for cases of invalide number of nodes in RefineNodes(), and added return
  statement after exceptions.
- G4GeometryManager: restore cout precision after printing voxel statistics.
- G4LogicalVolume: added return statement after exception in GetMass().
- G4ReflectedSolid: moved reserve() statement for 'vertices' within null-check
  condition in CalculateExtent() ...

February 9, 2010  G.Cosmo                  geommng-V09-03-00
- Fixed initialisation of min/max extent for mother and target volumes in
  method BuildNodes() of G4SmartVoxelHeader.

November 27, 2009  G.Cosmo                 geommng-V09-02-05
- G4Region: added pointer to field-manager and associated accessor/modifier.

November 6, 2009  G.Cosmo                  geommng-V09-02-04
- G4VTouchable: moved inline vitual methods, constructor and destructor to
  source, to avoid problem of memory alignment in allocation of derived objects.

October 30, 2009  G.Cosmo                  geommng-V09-02-03
- Clear possible excess capacity in node vectors in G4SmartVoxelHeader
  BuildNodes() method. May reduce excess memory allocated in optimisation
  in large detector setups, with slight time increase in initialisation for
  geometry voxelisation.

September 24, 2009  G.Cosmo                geommng-V09-02-02
- Fixed implementation of G4LogicalVolume::TotalVolumeEntities() to become
  invariant to call sequence.

May 25, 2009  G.Cosmo                      geommng-V09-02-01
- Fixed initialisation of min/max extent in method BuildReplicaVoxels() in
  G4SmartVoxelHeader.

April 16, 2009  G.Cosmo                    geommng-V09-02-00
- Adopt 'const' references for strings as arguments/return-values in
  G4LogicalSurface. Some minor cleanup...

September 23, 2008  G. Cosmo               geommng-V09-01-08
- G4VSolid: explicitely reserve memory for polygon vectors in clipping
  algorithm to help reducing memory footprint. Courtesy of P.Elmer, CMS.

September 10, 2008  G. Cosmo               geommng-V09-01-07
- G4VSolid: promote copy-constructor and assignment operator to public
  to cope with specific use-case in ATLAS (see problem report #1023).

July 15, 2008  G.Cosmo                     geommng-V09-01-06
- G4Region: re-introduced protection for setting of root-region flag to the
  world volume in method RemoveRootLogicalVolume(), to cover case of explicit
  deletion of stores in the user application for dynamic geometries setups.

July 10, 2008  G.Cosmo                     geommng-V09-01-05
- G4LogicalVolume, G4LogicalVolumeStore: modified logic for the deletion
  of the root-region volumes, adding locking mechanism and automatically
  de-registering the world default root-region.
  Simplified Clean() method in the store, by removing unused and unnecessary
  flag for logical-volumes notification.
- Reinstated update of materials in G4Region::RemoveRootLogicalVolume()
  to correct handling individual removal of root-region volumes and restore
  proper setup state.

May 16, 2008  G.Cosmo                      geommng-V09-01-04
- G4Region: changed condition inside ScanVolumeTree() to check for the
  existence of a valid material-scanner pointer to apply the material scan
  instead of using the flag for nested structures.
- G4GeometryManager: do not apply optimisation on the current volume if it
  has been defined as a regular structure.
- Addresses problem report #990 on suggestions by M.Mendenhall.

March 13, 2008  G.Cosmo                    geommng-V09-01-03
- Cleared compilation warnings in G4GeometryManager on gcc-4.3.0 for
  ambiguous use of parentheses in condition statements.

February 20, 2008  I.Hrivnacova            geommng-V09-01-02
- Implemented missing protected copy-contructor and assignment operator
  for G4VSolid.

January 24, 2008  G.Cosmo                  geommng-V09-01-01
- Added Shrink() method to G4SmartVoxelNode to shrink memory allocated
  for the buffer of slices; to be used for studying ways of reducing memory
  waste when building nodes in G4SmartVoxelHeader for large geometry setups.

January 14, 2008  G.Cosmo                  geommng-V09-01-00
- Added Reserve() method to G4SmartVoxelNode to reserve memory allocated
  for the buffer of slices; to be used for studying ways of reducing memory
  waste when building nodes in G4SmartVoxelHeader for large geometry setups.

October 24, 2007  G.Cosmo                  geommng-V09-00-01
- Fixed typo in forcing minimum number of points in method
  G4VSolid::EstimateSurfaceArea(). Addresses problem report #981.

July 16, 2007  G.Cosmo                     geommng-V09-00-00
- Added dummy constructor and destructor to G4VPVParameterisation.

June 19, 2007  G.Cosmo                     geommng-V08-03-03
- Apply migration to <cmath> and std:: for G4ErrorCylSurfaceTarget and
  G4ErrorPlaneSurfaceTarget implementations. Fixes compilation problems
  detected on Windows VC++8.

May 16, 2007  G.Cosmo                      geommng-V08-03-02
- Introduced new classes for handling error propagation: G4ErrorTarget,
  G4ErrorSurfaceTarget, G4ErrorTanPlaneTarget, G4ErrorPlaneSurfaceTarget,
  G4ErrorCylSurfaceTarget (by P.Arce).
- Coworks with tag "global-V08-03-02".

May 11, 2007  G.Cosmo                      geommng-V08-03-01
- Use call to G4GeometryTolerance instead of kCarTolerance where needed.
- Requires tag "global-V08-03-00" and related tag set.

April 26, 2007  M.Asai                     geommng-V08-03-00
- Added forward declaration and pointer (with set/get methods) to
  G4VUserSteppingAction, to allow for stepping actions defined at region.

April 11, 2007  G.Cosmo                    geommng-V08-02-02
- Added 'get' methods to stores for retrivial of volumes/solid by name.
- Modified signature of G4VPhysicalVolume::CheckOverlaps() to introduce
  ability of handling tolerances for overlaps.
- Coworks with tag "geomvol-V08-02-02".

March 20, 2007  G.Cosmo                    geommng-V08-02-01
- Do not reset RegionRootFlag in RemoveRootLogicalVolume() if volume is the
  world, since the volume itself may be already removed from the store if
  G4LogicalVolumeStore::Clean() is called.

January 31, 2007  G.Cosmo                  geommng-V08-02-00
- Added flag for controlling verbosity to CheckOverlaps() method.
  By default, verbosity is ON.

November 30, 2006  G.Cosmo                 geommng-V08-01-08
- Corrected deregistration and deletion of world default region, now
  happening through G4RunManagerKernel. Affected codes: G4LogicalVolume
  destructor and G4RegionStore::Clean() method.
- Minor cleanup in the implementation of the other stores.

November 8, 2006  G.Cosmo                  geommng-V08-01-07
- Fixed compilation problems on SUN-CC for changes in the last tag.
  Added inclusion of <sstream> header in G4ReflectedSolid.cc.

November 6, 2006  J.Allison                geommng-V08-01-06
- Fix in G4ReflectedSolid::CreatePolyhedron() for case of component that
  does not have a G4Polyhedron representation.

October 23, 2006  G.Cosmo                  geommng-V08-01-05
- Replaced algorithm for EstimateSurfaceArea() in G4VSolid with more precise
  method by M.Kosov based on skin surface estimation.

October 19, 2006  G.Cosmo                  geommng-V08-01-04
- Modified interface for GetSurfaceArea() to be similar to the one for
  the computation of the geometrical volume, and allow the caching
  mechanism.

October 18, 2006  G.Cosmo                  geommng-V08-01-03
- Added GetSurfaceArea() method to G4VSolid for approximated computation
  of the surfare area of a shape.

October 2, 2006  G.Cosmo                   geommng-V08-01-02
- Removed debug printout in G4IdentityTrajectoryFilter implementation.

September 18, 2006  G.Cosmo                geommng-V08-01-01
- Added empty virtual method CheckOverlaps() to G4VPhysicalVolume to allow
  for proper overloading from subclasses. Implementation returns always
  'false', which the case for replicas.

July 17, 2006  M.Asai                      geommng-V08-01-00
- Fix a bug in G4Region.cc for nested parameterization.

May 3, 2006  G.Cosmo                       geommng-V08-00-05
- Modified G4VStoreNotifier class to be now a typedef of G4VNotifier which
  is moved in the 'global' module. Adapted stores to the new configuration.
- Requires tag "global-V08-00-02".

May 2, 2006  G.Cosmo                       geommng-V08-00-04
- Moved G4AssemblyTriplet class to 'volumes' module.
- Requires tag "geomvol-V08-00-03".

May 1, 2006  G.Cosmo                       geommng-V08-00-03
- G4Region:
  o Added inclusion of <algorithm> to resolve compilation error on WIN32-VC.
  o Fixed compilation warning for unused variable.

April 28, 2006  G.Cosmo                    geommng-V08-00-02
- G4VPhysicalVolume: return 'const G4String&' for GetName() instead of a
  string copy.

April 4, 2006  G.Cosmo                     geommng-V08-00-01
- G4Region:
  + Support material scanning for nested parameterisations. Moved classes
    G4VNestedParameterisation and G4VVolumeMaterialScanner from 'volumes'
    module.
  + Fixed implementation of utility method GetParentRegion() to return a
    boolean flag as argument, to identify if parent region is unique or not.
  + Simplified implementation of method BelongsTo(PV*).
- Requires tag "geomvol-V08-00-02".

April 3, 2006  G.Cosmo                     geommng-V08-00-00
- Fix in G4SmartVoxelHeader::BuildNodes() to avoid rare cases of negative
  extent returned by volumes due to malformed geometries or inaccurate
  extent calculation.

November 19, 2005  J.Apostolakis           geommng-V07-01-05
- Revised G4VPVParameterisation:
  + Changed signature of ComputeMaterial(), adding parent touchable pointer.
    This refinement enables easy use of nested parameterisations.
  + Additional methods allow nested parameterisation to be identified:
      G4bool IsNested() const;
    and to provide their material via new interface class:
      G4VVolumeMaterialScanner* GetMaterialScanner();
  + Suppressed temporary G4PhysicalTouchable class in volumes, not needed
    in the implementation any longer.

November 11, 2005  J.Apostolakis           geommng-V07-01-04
- Added methods to identify  Regular Structures in  Physical volume
  New pure virtual methods:
    - IsRegularStructure()     ,  returns boolean
    - GetRegularStructureId()  ,  returns code for structure type

November 9, 2005  G.Cosmo                  geommng-V07-01-03
- Added fake default constructor for base types of volumes, solids and
  regions, for usage of direct object persistency.
- Migrated unit test TestAssemblyVolume to <sstring> from
  deprecated <strstream>.

October 28, 2005  M.Asai                   geommng-V07-01-02
- Merged concept of "envelope" to G4Region for fast-parameterisation.

September 15, 2005  V.Grichine             geommng-V07-01-01
- Added concrete implementation for GetPointOnSurface() to G4ReflectedSolid.

August 10, 2005  G.Cosmo                   geommng-V07-01-00
- Added virtual method GetPointOnSurface() to G4VSolid to be implemented in
  the concrete solids classed for returning a random-point uniformely
  distributed on the surface.

May 25, 2005  G.Cosmo                      geommng-V07-00-04
- Fixed problem with previous tag, where version of G4LogicalVolume.cc was
  not correct and untagged.
- G4LogicalVolume::SetVisAttributes(const G4VisAttributes& VA): now creating
  a copy of 'VA' on the heap. Temporary solution, until a proper 'store' for
  visualization attributes will be implemented to take care of the memory
  management.

May 23, 2005  G.Cosmo                      geommng-V07-00-03
- Modified comments in G4VSolid and G4BlockingList to overcome a limitation in
  the scripts for the generation of the Software Reference Manual.

Apr 13, 2005  G.Cosmo                      geommng-V07-00-02
- Extended signatures for OpenGeometry() and CloseGeometry() to consider local
  optimisation of a subtree of volumes. Voxelisation can now apply to just a
  specific subtree if a physical volume is specified.

Apr 02, 2005  M.Asai                       geommng-V07-00-01
- Added protection against NULL material pointer for volumes belonging
  to the tracking geometry in G4Region scanning.
  Addresses problem report #735.

Mar 23, 2005  J.Allison
- Added test for Number-Of-Rotation-Steps in G4ReflectedSolid::GetPolyhedron().
  Requires tag "greps-V07-00-02".

Mar 22, 2005  J.Allison
- G4ReflectedSolid: correction: changed AddThis to AddSolid.

Mar 02, 2005  G.Cosmo                      geommng-V07-00-00
- Added optional boolean argument 'propagate' to GetMass() to avoid
  propagation of computation of masses to the daughter volumes (courtesy
  of G.Santin). Propagation to daughters is done by default.

Feb 18, 2005  M.Asai
- Added G4UserLimits pointer to G4Region and added access from G4LogicalVolume.

Dec 02, 2004  G.Cosmo                      geommng-V06-02-08
- Implemented migration to <cmath> for standard mathematical functions.

Nov 19, 2004  G.Cosmo                      geommng-V06-02-07
- Added GetCopyNumber() method to G4VTouchable, clone of GetReplicaNumber().

Nov 16, 2004  M.Asai                       geommng-V06-02-06
- Fix in G4LogicalVolume::UpdateMaterial() for checking the existance of
  root-region pointer for logical-volume. Fixes report #684.

Nov 13, 2004  G.Cosmo                      geommng-V06-02-05
- Added method TotalVolumeEntities() to G4LogicalVolume, returning the
  total number of physical volumes (placed or replicated/parameterised)
  included in the tree represented by the current logical volume.
- Correction in the computation of mass for parameterised volumes.

Nov 12, 2004  G.Cosmo                      geommng-V06-02-04
- Added method GetMass() to G4LogicalVolume, returning the value in absolute
  units of the mass of the logical volume tree. The mass is computed from the
  estimated geometrical volume of each solid and material's density associated
  to the logical volume and its daughters.
  The returned value is cached and can be used for successive calls (default),
  unless recomputation is forced by providing 'true' as the first boolean
  argument in input. Computation should be forced if the geometry setup has
  changed after the previous call. An optional argument to specify a material
  is provided; it is implicitely used for geometrical parameterisations by
  material.

Oct 10, 2004  J.Allison                    geommng-V06-02-03
- Added GetPolyhedron, a smart access function that creates a G4Polyhedron
  on request and stores for future access.  A null pointer means "not
  available".

Sep 28, 2004  M.Asai                       geommng-V06-02-02
- G4Region:
  o Added map for storage of materials/cuts.
  o Added methods for handling registration of couples in the map, finding
    a couple according to a given material, clearing the map's storage.
- G4LogicalVolume:
  o Added method UpdateMaterial() to refresh a material/cut couple in
    the corresponding region.

Sep 22, 2004  G.Cosmo                      geommng-V06-02-01
- Introduced virtual method GetCubicVolume() to G4VSolid, returning an
  estimation of the solid volume in internal units. This method may be
  overloaded by derived classes to compute the exact geometrical
  quantity for solids where this is possible, or anyway to cache the
  computed value. By default it uses the new protected method
  EstimateCubicVolume(stat, eps) with fixed statistics and error
  accuracy, and does not cache the computed value.

Sep 02, 2004  G.Cosmo                      geommng-V06-02-00
- Introduced abstract class G4VStoreNotifier to be optionally associated
  to stores by the user for the notification of the registration and
  deregistration of objects in the stores.
- Added notification mechanism to volume, solid, and region stores.
- Fixed G4RegionStore::Clean() to avoid deletion of world region.

May 07, 2004  G.Cosmo                      geommng-V06-01-00
- Imported G4ReflectedSolid class from solids/Boolean.
- Added abstract factory G4VPVDivisionFactory defining interfaces
  for the creation of volumes divisions (courtesy of I.Hrivnacova).
- Coworks with tags: geomvol-V06-01-00, geomdiv-V06-01-00 and
                     geom-bool-V06-01-00.

Dec 01, 2003  P.Gumplinger                 geommng-V05-02-05
- G4LogicalSurface[.hh.icc]: modified to use G4SurfaceProperty instead
  of G4OpticalSurface. Requires tag "materials-V05-02-00".

Nov 04, 2003  G.Cosmo                      geommng-V05-02-04
- G4LogicalVolume.hh: added inclusion of assert.h required by .icc file.

Nov 01, 2003  G.Cosmo                      geommng-V05-02-03
- Code cleanup and headers inclusion review (replaced by forward
  declarations where necessary).
- G4VPVParameterisation: added G4Polycone and G4Polyhedra to list of
  possible parameterisations by dimension.

Oct 24, 2003  G.Cosmo                      geommng-V05-02-02
- Migrated calls to G4Exception to new scheme.

Oct 21, 2003  M.Asai                       geommng-V05-02-01
- Introducing G4VUserRegionInformation class.
- G4VPVParameterisation: added G4Orb. (V.Grichine)

Sep 30, 2003  G. Cosmo                     geommng-V05-02-00
- Logical reorganisation and restructure of modules.
  Moved files to geometry/volumes:
    G4AssemblyVolume[.hh.icc.cc]
    G4PVParameterised[.hh.cc]
    G4PVPlacement[.hh.cc]
    G4PVReplica[.hh.cc]
  Moved files to new module geometry/navigation:
    G4DrawVoxels[.hh.cc]
  Imported files from geometry/volumes:
    G4BlockingList[.hh.icc.cc]
    G4IdentityTrajectoryFilter[.hh.cc]
    G4VCurvedTrajectoryFilter[.hh.cc]
- G4VPhysicalVolume[.hh.icc.cc]:
  o Removed pointer to mother physical volume and related accessor
    methods: SetMother()/GetMother().
  o Removed pure virtual method Setup(G4VPhysicalVolume*), no longer
    necessary. Subclasses will require modification as well.
- G4LogicalVolume.icc:
  o Updated/fixed initialisation of data and fast-simulation manager
    according to above changes.
- G4SmartVoxelHeader.cc:
  o Cleared usage of PV-Setup(), according to above changes.

May 19, 2003  G. Cosmo                     geommng-V05-01-01
- G4LogicalVolume.cc: notify removal of root-logical-volume from G4Region
  in case of deletion of a logical-volume from the destructor, instead that
  from DeRegister() method.
- G4LogicalVolumeStore.cc: removed redundant check and call to
  RemoveRootLogicalVolume() from Clean() method.
- G4Region.cc: removed redundant calls to ScanVolumeTree() and
  UpdateMaterials() from RemoveRootLogicalVolume() method.

May 13, 2003  G. Cosmo                     geommng-V05-01-00
- G4LogicalVolume: added method ClearDaughters() to be used for resetting
  the list of daughters to a logical volume in the use-case when only the
  physical volume store is cleared at run-time.
- GVPhysicalVolume:
  o Added pointer to mother logical volume (will replace in future releases
    the pointer to mother physical volume) and related accessors.
  o Standardised registration mechanism as daughter for constructor using
    the pointer to the mother's PV.
- G4PhysicalVolumeStore:
  o Added notification mechanism to logical volumes in the Clean() method
    to update the list of daughters.
  o Update mother's LV list of daughters when deregistering a volume.
- G4PVPlacement/Replica/Parameterised: standardised registration mechanism
  as daughter for constructor using the pointer to the mother's PV.

April 3, 2003  M. Dressel                  geommng-V05-00-09
- G4LogicalVolume: added method for scanning recursively the volume tree
  and retrieve if the current LV is ancestor of a given PV:
    G4bool IsAncestor(const G4VPhysicalVolume*) const

March 31, 2003  G. Cosmo                   geommng-V05-00-08
- Fixed trivial strict pedantic warnings in G4VSolid.cc and G4PVPlacement.cc.

March 24, 2003  G. Cosmo                   geommng-V05-00-07
- G4Region.cc: fixed setting/resetting of regions in ScanVolumeTree().

March 05, 2003  M. Asai                    geommng-V05-00-06
- G4Region.cc: fix for scanning of parameterised materials.

March 05, 2003  G. Cosmo                   geommng-V05-00-05
- G4LogicalVolume.icc: added check for invalid geometry constructions.
  Issue an exception if a placement is attempted in a volume already
  containing a replicated daughter.
- Cosmetic formatting changes in G4PVPlacement.cc and G4VPhysicalVolume.cc.

February 07, 2003  G. Cosmo                geommng-V05-00-04
- Added method FindOrCreateRegion() to G4RegionStore.
- Added check in constructor of G4Region for existance of region in store.
  In case a region with the given name already exists, throw a warning and
  do not register it.

January 30, 2003  G. Cosmo                 geommng-V05-00-03
- Allow logical volume store to deregister root regions for logical volumes
  deleted explicitely.
  Modified files: G4logicalVolumeStore.cc, G4LogicalVolume[.hh.icc.cc].
- G4Region.hh: moved ClearMaterialList() to public.

January 15, 2003  G. Cosmo                 geommng-V05-00-02
- Included fix in G4VSolid.cc introduced in "geommng-V04-01-06".

January 14, 2003  M.Asai                   geommng-V05-00-01
- Fix in src/G4Region.cc.
  Does not include fix in "geommng-V04-01-06".

December 16, 2002  G. Cosmo                geommng-V05-00-00
- Merged branch "geant4-04-01-ref-02-cuts-branch" to HEAD.
  Included development for 'cuts-by-region'; introduced new classes
  G4Region and G4RegionStore. Modified G4LogicalVolume to handle recursive
  propagation of regions to daughters.
  Does not include fix in "geommng-V04-01-06".

December 6, 2002  V. Grichine              geommng-V04-01-06
- G4VSolid.cc: restored original conditions for extent clipping in
  method ClipPolygon(). Makes unit tests run successfully.

November 19, 2002  G. Cosmo                geommng-V04-01-05
- G4GeometryManager[.cc]
  o Fixed bug in initialisation of fine-grained timer
    (courtesy of Helmut Burkhardt).

November 09, 2002  G. Cosmo                geommng-V04-01-04
- G4LogicalVolume.cc:
  o Correction to propagation of the Field Manager to Daughter volumes:
    it should be propagated to all daughters that do not have one -- not to all the
    ones that have one already. Fixes bug report for field by logical volume.
    (J.Apostolakis)

October 28, 2002  G. Cosmo                 geommng-V04-01-03
- G4VSolid[.hh.icc.cc]:
  o Added pure virtual method StreamInfo() to stream contents of a solid
    to a generic output stream.
  o Added method DumpInfo() using StreamInfo() to dump contents to the
    standard output.

October 23, 2002  G. Cosmo                 geommng-V04-01-02
- G4PVReplica.cc:
  o Corrected order for check on illegal constructions, in constructor taking
    a pointer to logical volume as mother volume.
  o Improved output diagnostics.
- G4PVParameterised.cc:
  o Improved output diagnostics for check on illegal constructions.

October 16, 2002  G. Cosmo                 geommng-V04-01-01
- G4PVReplica.cc, G4PVParameterised.cc:
  Added checks for illegal geometry contructions; contructors now verify unicity
  of daughter volumes for replicas and parameterised volumes, as well as checks
  for attempt to replicate/parameterise the world volume.

October 4, 2002  G. Cosmo
- G4PVParameterised[.hh.cc], G4PVPlacement[.hh.cc]:
  Added new method IsParameterised() to enquire for existing parameterisation
  for a placed volume.
- G4PVReplica[.hh.cc], G4VPhysicalVolume[.hh.cc]:
  Added methods IsParameterised() and GetMultiplicity() to enquire for existing
  parameterisation of placed volume, and number of replicated volumes.

September 11, 2002  G. Cosmo               geommng-V04-01-00
- G4AssemblyVolume[.hh.icc.cc]:
  o Fixed bug #409 concerning missing imprint counter method.
  o Fixed bug #410 concerning the internal counting mechanism.
    The fix involved the addition of a new data member fAssemblyID,
    holding the instance ID of the given object derived from
    class-wide counter. Corresponding accessor methods has been
    added as well.
- Updated unit test TestAssemblyVolume, to add call to G4RunManager
  for resetting nagivator state in TstVADetectorConstruction.cc.

June 24, 2002  G. Cosmo                    geommng-V04-00-08
- G4AssemblyVolume[.hh.cc]:
  o Moved accessors to assembly counters to public.
  o Added support for user definable count base for generated physical volumes.
  Fixes problem report #382.

June 7, 2002  G. Cosmo                     geommng-V04-00-07
- G4AssemblyVolume[.hh.cc]:
  o Fixed inconsistent handling of input rotation matrices by caching them
    with corresponding deallocation at destruction time.
    Comments updated accordingly with a warning about foreseen changes
    in methods' interfaces expected by next major release 5.0.
  o Correctly handle cases when pointer to rotation matrix is zero.
  o Updated unit test.

May 17, 2002  G. Cosmo                     geommng-V04-00-06
- Added ability to optionally optimise/non-optimise detector regions
  using logical volumes:
  o G4LogicalVolume:
    - Introduced additional bool argument to constructor,
      set to 'true' by default.
    - Added method IsToOptimise() with corresponding bool flag attribute.
  o G4GeometryManager:
    - Adapted BuildOptimisations() method to consider optional optimisation
      flag from G4LogicalVolume.

May 15, 2002  G. Cosmo                     geommng-V04-00-05
- G4SmartVoxelHeader:
  o Added utility method GetParamAxis() to retrieve suggested axis for
    optimisation of parametrised geometry.
  o Enhanced BuildReplicaVoxels() to apply 3D voxelisation for non-consuming
    nodes if undefined axis is specified for parametrised volumes. In such
    case, optimisation for parameterised volumes is applied similarly to
    normal placements.
- G4PVReplica.cc: deal with 'kUndefined' EAxis.
- Co-works with "global-V04-00-06".

May 13, 2002  G. Cosmo                     geommng-V04-00-04
- G4VSolid: use polygon clipping for limited voxel when != pAxis (V.Grichine).
- G4GeometryManager: added method IsGeometryClosed() for detecting geometry
  closed or open.
- G4LogicalVolumeStore, G4PhysicalVolumeStore, G4SolidStore: added protection
  to Clean() method for checking if geometry is closed.
- G4SmartVoxelHeader.cc: cosmetics and formatting cleanup.

April 19, 2002  G. Cosmo                   geommng-V04-00-03
- Moved inline constructors/destructors to no inline.
  Affected files: G4DrawVoxels[.hh.cc], G4SmartVoxelNode[.hh.cc],
                  G4SmartVoxelProxy[.hh.cc], G4VoxelLimits[.hh.cc].
- Enhanced behavior for destructors of volumes/solids stores.
  o Added locking mechanism for preventing conflicts when destroying stores
    and deregistering pointers. Now destructors of stores will also
    explicitely delete pointers (and therefore allocated volumes/solids)
    dynamically allocated in the user application.
  o Added Clean() static method to volumes/solids stores to explicitely
    delete pointed objects in the stores and clear all entries.
  o Modified files: G4LogicalVolumeStore[.hh.cc], G4SolidStore[.hh.cc],
                    G4PhysicalVolumeStore[.hh.cc].

April 16, 2002  V. Grichine                geommng-V04-00-02
- G4VSolid[.hh.cc]: fixed bug in G4VSolid::ClipPoligon() to consider
  clipping related to a single axis.
- G4VoxelLimits.cc: cosmetics changes and debug printouts ...

February 26, 2002  G. Cosmo                geommng-V04-00-01
- G4GeometryManager.cc: fixed handling of ios manipulators and precision to reset
  to their original state in G4GeometryManager::ReportVoxelStats().
  Fixes problem report #343.

January 08, 2002  G. Cosmo                 geommng-V04-00-00
- G4AffineTransform.icc: fixed trivial compilation warning for gcc-2.95.2.
- Included latest cosmetics changes to TestAssemblyVolume/TstVADetectorConstruction.cc.

November 23, 2001  G. Cosmo                geommng-V03-02-03
- Initialise noNodes to 1 in G4SmartVoxelHeader::BuildNodes() in case
  computed nodes for smartless happen to be zero (J.Apostolakis).

November 08, 2001  G. Cosmo                geommng-V03-02-02
- Fixed comments for reference manual in G4TouchableHandle.hh.

October 26, 2001  G. Cosmo                 geommng-V03-02-01
- Improved printout in G4GeometryManager::ReportVoxelStats().

October 22, 2001  G. Cosmo                 geommng-V03-02-00
- Added definition of G4TouchableHandle (R.Chytracek)
- Added class G4SmartVoxelStat for statistics on geometry optimisation
  of volumes through voxelisation (courtesy of D.C.Williams).
- Modified G4GeometryManager to make use of G4SmartVoxelStat when run in
  verbose mode.

May 31, 2001  G. Cosmo                     geommng-V03-01-04
- Adopt explicit initialisation for 'minExtents' and 'maxExtents'
  in G4SmartVoxelHeader::BuildNodes(...), to allow porting on ObjectSpace STL.

May 23, 2001  G. Cosmo                     geommng-V03-01-03
- G4SmartVoxelHeader.cc: minor fix for removing pedantic warnings
  detected on Linux-g++ with ISO/ANSI setup.

May 03, 2001  G. Cosmo                     geommng-V03-01-02
- G4DrawVoxels.cc: migration to STL vector according to changes in
  graphics_reps module (greps-V03-01-01), now migrated as well.

April 27, 2001  G. Cosmo                   geommng-V03-01-01
- G4LogicalVolume.cc, G4SmartVoxelHeader.cc: fixed compilation warnings
  on HP-UX, concerning potential uninitialised vector elements.

April 20, 2001  G. Cosmo                   geommng-V03-01-00
- Migration to STL vector:
  o G4VSolid: migrated G4ThreeVectorList typedef.
  o G4SolidStore, G4LogicalVolumeStore, G4PhysicalVolumeStore: migrated
    inheritance from base collection of pointers.
  o G4LogicalVolume: migrated data member "fDaughters".
  o G4SmartVoxelHeader: migrated typedefs G4ProxyVector, G4NodeVector,
    G4VolumeNosVector and G4VolumeExtentVector.
  o G4SmartVoxelNode: migrated G4SliceVector typedef.

March 07, 2001  G. Cosmo                   geommng-V03-00-01
- G4PVPlacement.hh: corrected comments to constructor with G4RotationMatrix*
  as argument, to correspond to specifications in the User's Manual.
- G4AssemblyVolume.cc: corrected comments about unique PV identifiers
  (by R.Chytracek).

February 07, 2001  G. Cosmo                geommng-V03-00-00
- Introduced first implementation of G4AssemblyVolume, a helper class to
  combine several volumes together in an arbitrary way in the 3D space.
  Added files: G4AssemblyVolume[.hh.icc.cc], G4AssemblyTriplet[.hh.icc]
  (by R.Chytracek).
- Added unit test suite for G4AssemblyVolume class: TestAssemblyVolume
  (by R.Chytracek).

December 04, 2000  G. Cosmo
- Minor fix to private assignment operator.

November 20, 2000  G. Cosmo                geommng-V02-00-04
- Fixes to remove warnings from "-Wall -ansi -pedantic" g++ compiler options:
  o commented out variables declared and not used.
  o fixed declaration of variables used before being initialised.
  o fixed order of initialisation of member data in constructors.
  o fixed usage of unsigned-int (size_t) for array indeces.

November 16, 2000  V.Grichine              geommng-V02-00-03
- Fix in G4VSolid::CalculateClippedPoligonExtent(): removed assumption
  that pMin<pMax by eliminating "else" condition. (D.Williams)

November 9, 2000   G.Cosmo                 geommng-V02-00-02
- Included test directory containing "voxel" test by L.Grainac.

November 1, 2000   G.Cosmo                 geommng-V02-00-01
- QA code revision and cleanup (+fixes from CodeWizard filtering):
  o Added (private) declarations of copy constructor and assignment
    operator where needed.
  o Added "const" qualifier to accessor methods, wherever needed.
  o Added equality check on operator= where needed.
  o Made destructor "virtual" for classes having virtual methods,
    wherever missing.
  o Changed virtual functions to non-inline wherever's the case.
  o Added "inline" qualifier to methods' declarations.
  o Replaced usage of "do-loops" with "while-loops" in
    G4VoxelLimits::ClipToLimits().
  o General cosmetics

September 11, 2000   G.Cosmo               geommng-V02-00-00
- G4SolidStore.cc: fixed bug in destructor causing memory corruption at
  application exit when Boolean solids are involved (bug #154).

June 06, 2000   G.Cosmo                    geommng-V01-01-00
- G4DrawVoxels.hh: removed line '#define G4DrawVoxelsDebug' left in place
  accidentally in the code...

April 20, 2000   G. Cosmo
- Reorganised comments for the Software Reference Manual.
- Moved inlined definition to .icc files, where needed.
  Created: G4SmartVoxelHeader.icc, G4SmartVoxelNode.icc,
           G4SmartVoxelProxy.icc, G4VoxelLimits.icc.

April 11, 2000   J. Allison
- Made virtual G4VisExtent G4VSolid::GetExtent() non-pure and implemented
  a default in terms of CalculateExtent.

January 19, 2000  G. Cosmo                 geommng-V01-00-00

- Syncronized file versioning with HEAD (several CVS headers changed
  due to the recent migration for ISO C++)

January 19, 2000  J. Allison

- G4DrawVoxels.cc: assured GetSlice(slice_no) is called for
  slice_no < no_slices.

November 30, 1999  G. Cosmo                geommng-V00-01-01a
- G4DrawVoxels.cc:
  Fixed initialization of (const G4VPhysicalVolume*) in method
  GetAbsoluteTransformation(). Fix needed for NT/VC++ compiler.

November 09, 1999  J. Apostolakis          geommng-V00-01-01
- G4VPhysicalVolume:
   i) Made G4RotationMatrix G4VPhysicalVolume::GetObjectRotation() const
      non-inline and moved it to source file from inline file.
  ii) Added GetObjectRotationValue() method.
 iii) Minimal changes of comments for Software Ref. Manual in header file

  [ Change i) caused problem with HP aCC compiler A.01.19.  Atlas
     was patching the code to try to get around this, but this
     resolution is much better ]

March 17, 1999  J. Apostolakis             geommng-01-00-02
- G4AffineTransform.icc:
  Corrected a typo in InverseProduct (rzy->ryz) that caused the incorrect
  calculation of a compound transformation (if tf1.tz*tf2.ryz != 0).
  This problem was seen in ATLAS code.
