Geant4 User's Guide for Application Developers - Geant4 - CERN

AppendixDynamic libraries (.dylib) are supported as well; once built, in order to run the generated application, the usermust specify the absolute path in the system where they're installed with the DYLD_LIBRARY_PATH systemvariable.2. HistogrammingGeant4 is independent of any histogramming package. The Geant4 toolkit has no drivers for histogramming, andno drivers are needed in Geant4 to use a histogramming package. The code for generating histograms on some ofthe distributed examples should be compliant with the AIDA abstract interfaces for Data Analysis.Consequently, you may use your favourite package together with the Geant4 toolkit.2.1. JASPlease refer to the JAS documentation on histogramming for using the JAVA Analysis Studio tool.2.2. iAidaPlease refer to the iAIDA (an implementation of AIDA in C++) documentation : tool for generating histogramswith AIDA to HBook, Root and AIDA-native compressed XML format.2.3. Open Scientist LabPlease refer to the Open Scientist Lab documentation on histogramming for using the Lab Analysis plug-in forthe OnX package.2.4. rAIDAPlease refer to the rAIDA documentation (a Root implementation of AIDA): Root plugin for generating histogramswith AIDA.2.5. ExamplesExamples in Geant4 showing how to use AIDA compliant tools for histogramming are available in the codedistribution in the following directories:• geant4/examples/extended/analysis,• geant4/examples/extended/electromagnetic• geant4/examples/advanced3. CLHEP Foundation LibraryCLHEP is a set of Class Libraries containing many basic classes for use in High Energy Physics.Both a CLHEP Reference Guide and a User Guide are available.Origin and current situation of CLHEPCLHEP started in 1992 as a library for fundamental classes mostly needed for, and in fact derived from, the MCevent generator MC++ written in C++. Since then various authors added classes to this package, including severalcontributions made by developers in the Geant4 Collaboration.Geant4 and CLHEPThe Geant4 project contributed to the development of CLHEP. The random number package, physics units andconstants, and some of the numeric and geometry classes had their origins in Geant4.Geant4 also benefits from the development of CLHEP. In addition to the already mentioned classes for randomnumbers and numerics, we use the classes for points, vectors, and planes and their transformations in 3D space,294