# Example field 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!


## 2025-07-30 I. Hrivnacova (fieldex-V11-03-00)
- Migration of README pages to Markdown:
  - .README.txt replaced with README.md and removed README
  - Reviewed and fixed external links, references to code,
    improved formatting.

## 2023-11-15 I. Hrivnacova (fieldex-V11-01-01)
- Updated vis.mac macros:
  - Changed "/vis/open XYZ [600x600-0+0]" to "/vis/open" to allow run-time choices
    and simplified comments.

## 2023-07-05 I. Hrivnacova (fieldex-V11-01-00)
- Clean-up trailing white-spaces in README's and CMake files

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

---

# History entries prior to 11.0

24th Nov 2021 B. Morgan (fieldex-V10-07-00)
- Bump required CMake version range to 3.12...3.20, matching core Geant4

13th Nov 2020 B. Morgan (fieldex-V10-06-01)
- Enforce use of Serial RunManager for serial-only examples.

3rd Nov 2020 B. Morgan (fieldex-V10-06-00)
- Support same CMake version range as core Geant4

31st Jan 2019  Ivana Hrivnacova (fieldex-V10-05-00)
- Merged GitHub PR #4: all Boolean operators now return G4bool.

02nd Dec 2013 Ivana Hrivnacova (fieldex-V09-06-02)
- Fixed gui.mac macros in field01-06

1st Apr 2013 A.Dotti (fieldex-V09-06-01)
- Grouping single ex tags for new API of PhysicsList needed for MT

14th Feb 2013 Ivana Hrivnacova (fieldex-V09-06-00)
- Applied coding guidelines in field01, 02, 03
  (data members initialization, separators)

17th Nov 2012 Ivana Hrivnacova (fieldex-V09-05-03)
- Updated documentation:
  - Fixed .README files for artefacts from Markdown support
  - Removed obsolete instructions (how to compile & link)

18th Sep 2012 Ivana Hrivnacova (fieldex-V09-05-02)
- Adding explicit includes of G4SystemOfUnits.hh and G4PhysicalConstants.hh
  where needed
- Replaced tabulators with space characters

17th Sep 2012 Peter Gumplinger (fieldex-V09-05-01)
- remove G4TRACKING_ALLOC_EXPORT, G4DLLEXPORT and G4DLLIMPORT from
  F04Trajectory and F04TrajectoryPoint.

4th Sep 2012 Ivana Hrivnacova (fieldex-V09-05-00)
- Updated CMakeLists.txt:
  adding visualization, copying macros, install target and comment lines
- Added .README files

23rd Nov 2011 Peter Gumplinger (fieldex-V09-04-01)
- Add README file to the new field example field06 and correct a small
  mistake in F06ExtraPhysics.cc

7th Nov 2011 Peter Gumplinger (fieldex-V09-04-00)
-------------------------------------------------
- Add new field example field06. This example excercises the gravity field.

19th Nov 2009 Peter Gumplinger (fieldex-V09-02-00)
--------------------------------------------------
- Add new field example field05. This example checks the so-called
  "spin-frozen" condition. There is a good article hep-ph/0012087v1.
  This article discusses about how to cancel the muon g-2 precession by
  applying an electric field.
  "Spin-frozen" happens when spin rotation cycle and muon rotation cycle
  are the same. The example will through a G4Exception if this is not the
  case.
  Thanks to Hiromi Iinuma from KEK
  See also: http://research.kek.jp/people/hiromi/

29th Oct 2007 Peter Gumplinger (fieldex-V09-00-00)
--------------------------------------------------
- Add new field example field04 to exhibit the way
  overlapping fields may be handled in Geant4.
  Thanks to Tom Roberts and Muons Inc.
  G4BEAMLINE release 1.12
  http://g4beamline.muonsinc.com

3rd May 2005  John Allison  (fieldex-V07-00-03)
------------------------------------------------
- Replaced vis manager with G4VisExecutive.

Dec 3rd, 2004 Gabriele Cosmo (fieldex-V06-02-00)
------------------------------------------------
- Implemented migration to <cmath>.
- Removed dependency on old PAI and XTR models in PhysicsList of
  field01/02/03 examples.

Mar 23rd, 2004 John Apostolakis (fieldex-V06-00-00)
---------------------------------------------------
- Group together fixes in:
    field01    fieldex01-V06-00-00  and
    field03    fieldex03-V06-00-00
  which fix common problem in SetField methods.
- Created.