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     Geant4 - an Object-Oriented Toolkit for Simulation in HEP
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                      Category History file
                      ---------------------
This file should be used by G4 developers and category coordinators
to briefly summarize all major modifications introduced in the code
and keep track of all category-tags.
It DOES NOT substitute the  CVS log-message one should put at every
committal in the CVS repository !

     ----------------------------------------------------------
     * Reverse chronological order (last date on top), please *
     ----------------------------------------------------------

History file for visualization/VRML sub-category
------------------------------------------------

26 August 2021  Ben Morgan (VRML-V10-07-03)
- Remove obsolete VRML1 and network VRML2 drivers

25 August 2021  John Allison (VRML-V10-07-02)
- VRML*FILE drivers:
  o Introduce environment variables G4VRMLFILE_HEADER and G4VRMLFILE_FILE_NAME
    to allow the user to change the defaults. Also improve messaging to
    inform the user of this possibility.

07 June 2021  John Allison (VRML-V10-07-01)
- Fix hidden function warning.

15 April 2021 Ben Morgan (VRML-V10-07-00)
- Migrate build to modular CMake system

3 July 2020  John Allison  (VRML-V10-06-02)
- G4VRML1/2FileSceneHandler.cc:
  o Fix Unbuntu 20 compiler warning about ignoring return value
    of ‘int system(const char*)’.

31 May 2020 Ben Morgan (VRML-V10-06-01)
- Use add_definitions to set PRIVATE-level compile add_definitions
  for compatibility between old and new CMake systems

12 December Ben Morgan (VRML-V10-06-00)
- Cleanup CMake build, removing obsolete granular library option and
  explicit include_directories.

29 August 2019  John Allison (VRML-V10-05-00)
- Part of vis-V10-05-24.
- Add G4TessellatedSolid to list of solids that may be specially treated

26 May 2018  John Allison (VRML-V10-04-00)
- G4VRML2FileSceneHandler.cc: Fix gcc-8 warnings.

23rd May 2017  John Allison (VRML-V10-03-01)
- Fixes for gcc-7.1 warnings.

19th November 2016  John Allison (VRML-V10-02-03)
- Fixed the GetColour() problem.

11th September 2016  John Allison (VRML-V10-02-02)
- GetColour/GetColor no longer takes an argument.
- Make sure applicable vis attributes are obtained.
  // Get and check applicable vis attributes.
  //   fpVisAttribs = fpViewer->GetApplicableVisAttributes(fpVisAttribs);
  // Note: the vis attributes may have been modified by the viewer.  See
  // code in G4VViewer::GetApplicableVisAttributes.

31st August 2016  John Allison (VRML-V10-02-01)
- Fix G4Orb and G4Ellipsoid hiding warnings.

19th May 2016  John Allison  (VRML-V10-02-00)
- Fixed gcc-6.1 warnings.

2nd February 2015  Gabriele Cosmo (VRML-V10-01-00)
- Fix to sources.cmake script to include missing dependency on external library.

10th December 2013  John Allison  (VRML-V10-00-00)
- G4VRML1/2File.cc: Declared as G4VGraphicsSystem::fileWriter.

15th November 2013  John Allison  (VRML-V09-06-05)
- Some changes as suggested by PVS.

7th November 2013  Gabriele Cosmo  (VRML-V09-06-04)
- Replaced deprecated calls to solids accessor methods.

29th January 2013  John Allison  (VRML-V09-06-03)
- Revert to VRML-V09-06-00.

14th January 2013  John Allison  (VRML-V09-06-01)
- Coverity fixes.

2nd December 2012  John Allison  (VRML-V09-06-00)
- Remove NURBS.

8th August 2012  John Allison  (VRML-V09-05-05)
- G4VRML1/2SceneHandlerFunc.icc;
  o Intercepted 2D primitives - JustWarning printed.

5th July 2012  Gabriele Cosmo  (VRML-V09-05-04)
- Explicitly use inclusion of headers for system of units and physical
  constants, in plan to remove implicit inclusion from globals.hh.

23rd May 2012  John Allison  (VRML-V09-05-03)
- Health Check 2012: Migrated (see management/History):
  o G4VRML1/2SCENEHANDLER::ClearTransientStore:
    . Removed call to G4VSceneHandler::ClearTransientStore.

28th March 2012  John Allison  (VRML-V09-05-02)
- G4VRML1FileViewer.cc: Protect debug statement.

28th February 2012  John Allison  (VRML-V09-05-01)
- Migrated to G4VScenehandler::fObjectTransformation.

13th January 2012  John Allison  (VRML-V09-05-00)
- G4VRML1/2FileSceneHandler.cc
  o Fixed Ubuntu warning about ignoring return value of system call.

27th December 2010  John Allison  (VRML-V09-04-00)
- Tagged.

23, December L. Garnier
- GNUmakefile : Remove Qt stuff from Makefile

11 November 2010  Akinori Kimura (VRML-V09-03-01)
- Replaced G4cerr with G4cout and added the following line before G4cout.
  if (G4VisManager::GetVerbosity() >= G4VisManager::errors)

30th May 2010  John Allison (VRML-V09-03-00)
- G4VRML[1/2][File}SceneHandler: Added AddCompound(const G4VDigi&).

21st October 2009  John Allison  (VRML-V09-02-01 coworks greps-V09-02-02)
- Added AddCompound (const G4THitsMap<G4double>&) methods.
  o Prevents warnings about hiding - calls G4VSceneHandler base class.

29 September 2009  John Allison (VRML-V09-02-00)
- Tagged change of disclaimer on file headings (made long ago).

12th June 2006  John Allison  (VRML-V08-00-02)
- G4VRML1/2FileViewer.cc: Fixed rewind problem. ClearView closes and
  re-opens file.
- G4VRML1/2FileSceneHandler.cc: Proper terminator on exit:

2nd June 2006  John Allison  (VRML-V08-00-01)
- G4VRML2SceneHandlerFunc.icc: Protect zero model pointer.

23rd January 2006  John Allison  (VRML-V08-00-00)
- Rewind output file in G4VRML*FileViewer::ClearView.  Avoids
  duplicate geometries in output file.

27th May 2005  John Allison  (VRML-V07-00-00)
- Fixed bug introduced in ClearTransientStore.

19th April 2004  Gabriele Cosmo (VRML-V06-01-00)
- Fixed typo in printout in G4VRML1FileSceneHandler.cc and
  G4VRML2FileSceneHandler.cc.

6th November 2003  John Allison  (vis-V05-02-03)
- G4VRML2SceneHandlerFunc: changed const char* pv_name to G4String pv_name.

4th October 2003  Gabriele Cosmo (vis-V05-02-01)
- Simplified GNUmakefile.

VRML-V05-00-00 17th February 2003 Satoshi Tanaka
- A Small bug fixing of VRML2 driver
 (Explicit cast from G4String to char*).

VRML-V04-01-00 November 10 2002
- Bug fixing for marker size (*.icc files)

VRML-V03-02-01 18th September 2001
- Updation for automatic visualization at Hebden Bridge mini-workshop.
- Filename incrementation is made the same as the DAWNFILE driver

27th April 2000  Gabriele Cosmo
- Removed unnecessary #include "G4Transform.hh".

VRML-V01-00-00 27th December 1999  Satoshi Tanaka
- G4endl ==> "\n" for fDest objects

VRML-V00-01-01 4th November 1999  Satoshi Tanaka
- Introduction of VRMLBeginModeling() for new vis commands

VRML-00-03-07	Satoshi TANAKA	Dec 07, 1998
- An environmental variable "G4VRML_VIEWER" is renames to
  "G4VRMLFILE_VIEWER" for consistency.

VRML-00-03-06	Satoshi TANAKA	Dec 04, 1998
- Maximun number of generated g4.wrl files in the destination
  directory is customizable as: "setenv G4VRMLFILE_MAX_FILE_NUM  N"
  (N is the integer greater than or equal to 1. The default value is 1.)

VRML-00-03-04	Satoshi TANAKA	Dec 03, 1998
- Bug fix of SetPVPickability();

VRML-00-03-03	Satoshi TANAKA	Nov 30, 1998
- Destination directiory of g4.wrl and g4_X.wrl is customizable
  with the environmental variable "G4VRMLFILE_DEST_DIR".

  Unix:
   % setenv G4VRMLFILE_DEST_DIR   directory_name/

   For example,

   % setenv G4VRMLFILE_DEST_DIR   /tmp/

   Do not forget to add "/" at the end of the directory name.

  NT:
   DOS> set G4VRMLFILE_DEST_DIR   directory_name\

   Do not forget to add "\" at the end of the directory name.

- Minor change in policy of automatic incremation of output VRML file:

  OLD way: g4.wrl, g4_2.wrl, .....           , g4_100.wrl
  NEW way: g4.wrl, g4_1.wrl, g4_2.wrl, ..... , g4_100.wrl

  Maximal number of files in one directory is restricted in order to
  avoid explosion of your hard disk. The maximal number is hard-coded.
  You can revise is by editing enum's of G4VRML1FILEScene.hh and
  G4VRML2FILESchene.hh

  Note that the incrementation is done as follows (pseudo codes)

    filename = "g4.wrl" // initialization

    while( filename already exists in the dest directory )
    {
	  increment filename
    }

  It means that if you delete file "g4.wrl" in the destination directory,
  the file name in the next generation is still g4.wrl.

  The JAVA application VRML/g4vrmlview/g4vrmlview.java
  for network visualization is also updated.


VRML-00-03-02	Satoshi TANAKA	Nov 13, 1998
- Code refinement of VRML 2.0 driver
- Pickability of Physical volume is controllable with
  setenv G4VRML_PV_PICKABLE  1/0
- Nickname of VRML drivers are renames:
  (Old names were, e.g., "VRML1File")

  VRML1 file    : VRML1FILE
  VRML1 network : VRML1

  VRML2 file    : VRML2FILE
  VRML1 network : VRML2
