The hepmc2dot.py scripts converts ASCII files generated by HepMC::IO_GenEvent to the common DOT graph format. It is tested only for Python 2.7 at this point.
HepMC is a High Energy Physics package for storing Monte Carlo event records. These records can typically be represented in a tree structure, where particles are edges and interaction vertices are nodes.
The official HepMC documentation is at: http://hepmc.web.cern.ch/hepmc/
Convert HepMC ASCII file hepmcfile.txt to DOT graph and store there
result in dotfile.dot:
hepmc2dot.py hepmcfile.txt dotfile.dot [nevents] [skip]where nevents limits the number of processed events and skip skips the given number of events from the start of the input file.
The utility script create-graph-pdf.sh is also provided to easily convert input HepMC or generated .dot files to a nicely formatted PDF file with one event per page.
The source repository is on GitHub.
Documentation can be found on Read the Docs.