This example includes a set of classes independent on each other which can be reused in "feature" examples demonstrating just a particular feature or users applications.

It provides the following sets of classes:

Detector construction classes
- two simple detector construction classes with a messenger
Physics list classes
- GeantinoPhysicsList - physics list with geantino and chargedgeantino only
Primary generator classes
- two simple primary generator classes (with G4ParticleGun and G4ParticleGeneralSource)

These classes can be tested with the following programs:

testCommon.cc - only instantiates all classes
exampleCommonNoVis.cc - Geant4 application without visualization, that can be run both interactively or in batch (with the init.mac or run.mac macro)
exampleCommonNoVis.cc - Geant4 application with visualization, that can be run both interactively or in batch (with the init_vis.mac or run.mac macro)

Building examples programs can be disabled with the CMake option: -DEXAMPLES_COMMON=OFF.