Gabriele Cosmo
112 lines
4.5 KiB
Plaintext
112 lines
4.5 KiB
Plaintext
$Id: README,v 1.11 2001/12/03 07:49:17 barrand Exp $
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-------------------------------------------------------------------
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=========================================================
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Geant4 - an Object-Oriented Toolkit for Simulation in HEP
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=========================================================
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AnaEx01
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-------
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This example shows the usage of histogram and tuple manipulations using
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an AIDA compliant system. In this example, all analysis manipulations
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(hooking an AIDA implementation, histo booking, filling, etc...) are
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concentrated in one class : AnaEx01AnalysisManager.
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To use an AIDA compliant analysis system with this example, the environment
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variables :
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G4ANALYSIS_USE
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G4ANALYSIS_AIDA_CONFIG_CFLAGS
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G4ANALYSIS_AIDA_CONFIG_LIBS
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must be properly set.
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The first one permits to validate/devalidate the AIDA analysis code
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in the example code. The two others permit to give the compilation
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and link flags of the AIDA compliant system used.
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An AIDA compliant system should define the command 'aida-config' that
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permits to retrieve the correct values. For example under some
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UNIX csh flavour :
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csh> source <your Geant4 setup script>.csh
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csh> source <AIDA_SYSTEM setup>.csh (or some equivalent)
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csh> setenv G4ANALYSIS_USE 1
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csh> setenv G4ANALYSIS_AIDA_CONFIG_CFLAGS `aida-config --cflags`
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csh> setenv G4ANALYSIS_AIDA_CONFIG_LIBS `aida-config --libs`
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csh> cd $G4INSTALL/examples/extended/analysis/AnaEx01
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csh> gmake
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For info, the CPP macros G4ANALYSIS_*_AIDA_* are used in the
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config/analysis.gmk file of the Geant4 GNUmakefile system.
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Working with the Falsetto package :
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---------------------------------
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Falsetto is a little package containing a dummy
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AIDA analysis factory. It permits to check compilation
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and link of some user AIDA code without embarquing a
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full analysis system.
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To reconstruct this example by using the Falsetto
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package (assuming that it is installed !), do :
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csh> source <your Geant4 setup script>.csh
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csh> source <some directory>/Falsetto/<version>/cmt/setup.csh
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csh> setenv G4ANALYSIS_USE 1
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csh> setenv G4ANALYSIS_AIDA_CONFIG_CFLAGS `aida-config --cflags`
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csh> setenv G4ANALYSIS_AIDA_CONFIG_LIBS `aida-config --libs`
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csh> cd $G4INSTALL/examples/extended/analysis/AnaEx01
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csh> gmake
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To run :
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csh> cd analyis/Falsetto
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csh> $G4WORKDIR/bin/$G4SYSTEM/AnaEx01
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At the beginning of output ;should appear :
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AIDA analysis factory not found.
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The Falsetto URL is : http://www.lal.in2p3.fr/SI/Falsetto
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Falsetto is installed at CERN under /afs/cern.ch/sw/contrib.
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Working with the OpenScientist/Lab package :
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------------------------------------------
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To reconstruct this example by using the OpenScientist/Lab
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package (assuming that OpenScientist is installed ! ) you have
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first to "setup" the environment of the Lab package and Geant4.
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The Lab package (and all OpenScientist packages) being handled
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by the CMT tools, you may have to setup the environment
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variable "CMTSITE" to execute site specific things in the chain
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of setup files of the OpenScientist packages. Then for example at CERN :
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csh> setenv CMTSITE CERN
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(DOS> set CMTSITE=CERN_WIN32 (for Windows))
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When done then do :
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csh> source <some directory>/Lab/<version>/cmt/setup.csh
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csh> source <your Geant4 setup script>.csh
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csh> setenv G4ANALYSIS_USE 1
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csh> setenv G4ANALYSIS_AIDA_CONFIG_CFLAGS `aida-config --cflags`
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csh> setenv G4ANALYSIS_AIDA_CONFIG_LIBS `aida-config --libs`
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csh> cd $G4INSTALL/examples/extended/analysis/AnaEx01
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csh> gmake
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To run :
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csh> cd analyis/Lab
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csh> $G4WORKDIR/bin/$G4SYSTEM/AnaEx01
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It must produce an AnaEx01.root file that contains
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some HCL histograms and a Lab tuple (stored as a ROOT/TTree).
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To plot some histograms, spawn the Lab interactive tool with :
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csh> onx
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(DOS> onx (for Windows))
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click in File/Python to map a file chooser, choose AnaEx01.py
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to execute the AnaEx01.py that contains a Python script that
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do some analysis over the AnaEx01.root file (it gets an histo, plots it
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in a first drawing region, gets the tuple, books and fills another histo
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from the tuple colum and plots it in another drawing region).
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The AnaEx01.C file could also be used, within the ROOT tool,
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to see a projection of the first column of the tuple contained
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in the AnaEx01.root file. For example :
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csh> root
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root[0] .X AnaEx01.C
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The OpenScientist URL is : http://www.lal.in2p3.fr/OpenScientist
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OpenScientist is installed at CERN under /afs/cern.ch/sw/contrib.
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