|Getting Started with PI|
This is not inteded to be a SCRAM, gmake, C++, Root tutorial. For those, please refer to the SPI documentation or directly to that of the various products.
tcsh source /afs/cern.ch/sw/lcg/app/spi/tools/latest/setup/lcgspi.csh scram project PI PI_1_3_0 cd PI_1_3_0/src mkdir Workspace cd Workspace cp /afs/cern.ch/sw/lcg/app/releases/PI/PI_1_3_0/src/AnalysisServices/AIDA_Proxy/examples/* . scram b bin eval `scram runtime -csh`
at this point you may execute exa4 that will produce a file named exa4.root ready to be inspected using root.
For instance, start root and type
TFile f("exa4.root") f.Get("ProjXY_H3D").Draw()to display the 2D histogram obtained as XY projection of the 3D.