This is DataTree structure of data. ROOT (v5 or v6) is needed to build this library. Neither QA, cuts nor macro nor any logic are expected in current package.

INSTALLATION

cd < DataTree directory >/

Make build directory:

mkdir build
cd build

Initialize your ROOT environment with source <path-to-root>/bin/thisroot.sh. Make sure, your compiler is the same as it was for root.

To check it on lxplus, say

$ which root
/afs/cern.ch/sw/lcg/app/releases/ROOT/5.34.19/i686-slc6-gcc47-opt/root/bin/root

i686-slc6-gcc47-opt is the needed one. It won't work for the case of default root, but in this case it is assumed it was built with default environment so the next step is not neccessary.

To use specific compiler, do

source source /afs/cern.ch/sw/lcg/contrib/gcc/4.7/i686-slc6-gcc47-opt/setup.sh
export CC=/afs/cern.ch/sw/lcg/contrib/gcc/4.7/i686-slc6-gcc47-opt/bin/gcc
export CXX=/afs/cern.ch/sw/lcg/contrib/gcc/4.7/i686-slc6-gcc47-opt/bin/g++

Prepare build

cmake [-DCMAKE_INSTALL_PREFIX=\<desired location\>] [-DEXPERIMENT=<SHINE or CBM>] ../src/

Set -DCMAKE_INSTALL_PREFIX=<desired location> if you want to install this library and don't want this library to be installed globally (i.e. /usr/).

Build library via make:

make

If you want to install it, call

make install

Shared library libDataTree.so is ready to use.

USAGE:

Within ROOT

Open ROOT:

root -l

Load shared library:

root [0]  gSystem->Load("libDataTree.so")
(int)0
root [1]  // do whatever you want

Inside other C++ project

To add DataTree into your CMake project, add the following lines into your CMakeLists.txt:

list(APPEND CMAKE_PREFIX_PATH $ENV{DATATREE_HOME})

...

find_package(DataTree REQUIRED)