Geant4Py

A set of python modules for using Geant4

System Requirements

Python

Python2.x and Python 3.x (experimental)

Geant4

built with CMake

CLHEP

use Geant4-CLHEP

(Optional)

ROOT for histogramming/analysis

How to Install

There is a configuration script for building the package.

# ./configure --help
`configure' configures Geant4Py to adapt to many kinds of systems.

Usage:  ./configure SYSTEM [OPTION]... [VAR=VALUE]...

SYSTEM: System type (see Supported Arhitectures)

Options:
  -h, --help                Display this help and exit

Installation directories:
  --prefix=PREFIX           Installation prefix  [./]
  --libdir=DIR              Python modules dir [PREFIX/lib]

Fine tuning of the library path:
  --with-g4install-dir=DIR  Geant4 installed dir

  --with-python-incdir=DIR  Python header dir [/usr/include/python(2.#)],
                            (location of pyconfig.h)
  --with-python-libdir=DIR  Python library dir [/usr/lib(64)]
  --with-python3            Use Python3

 --with-boost-incdir=DIR   BOOST-C++ header dir [/usr/include],
                            (location of boost/)
 --with-boost-libdir=DIR   BOOST-C++ library dir [/usr/lib]
 --with-boost-python-lib=LIB library name of libboost_python.so [boost_python]

 --with-extra-dir=DIR      Install path for extra packages [/usr/local]

 --with-xercesc-incdir=DIR Xerces-C header dir [/usr/include]
 --with-xercesc-libdir=DIR Xerces-C library dir [/usr/lib(64)]

Enable/disable options: prefix with either --enable- or --disable-
  openglx      OpenGLX support    [auto]
  openglxm     OpenGLXm support   [disable]
  raytracerx   RayTracerX support [disable]

Supported Architectures:
  linux           for Linux gcc (32bit)
  linux64         for Linux gcc (64bit)
  linuxx8664gcc   for Linux gcc (64bit)
  macosx          for Apple OS X with gcc

For example,

# ./configure linux64 -with-g4install-dir=<geant4 install path with CMake>

The configuration script will create config/config.gmk, which describes your environment.

After executing the configure script, then

# make
# make install

How to Use:

Some environment variables are required at run time.

PYTHONPATH

Python module search directories, given by a colon-separated list of directories. Practically, $(INSTALL_PATH)/lib is ok.

LD_LIBRARY_PATH

Additional shared library path to be searched.

Some libraries paths are already specified via -rpath linker option, so these paths do not have to be added to LD_LIBRARY_PATH.

• Geant4
• boost-python library
• $(INSTALL_PATH)/lib
• $(G4PY_EXLIB_LIBDIR) specified in a module makefile.

You can import Geant4Py modules in Python just like

>>> import Geant4