Differences

This shows you the differences between two versions of the page.

--- hepsim:usage_full [2017/04/03 00:59]
hepsim17 [Using C++/ROOT with LCIO]
+++ hepsim:usage_full [2017/09/21 13:48]
hepsim17
@@ Line 3: / Line 3: @@
 [[:|<< back to HepSim manual]]
-====== Full simulations  ======
+====== Analysis of LCIO files  ======
 Currently, the Geant4-based detector simulation can be done using the SLIC software. You will need to convert ProMC files to LCIO files and
@@ Line 106: / Line 106: @@
 ====== Using C++/ROOT with LCIO ======
-If you need to read LCIO files in C++ code with ROOT/FastJet, use this example package:
+If you need to read LCIO files in C++ code with ROOT/FastJet, use the example package [[https://github.com/chekanov/HepSim]].
 <code bash>
-wget http://atlaswww.hep.anl.gov/hepsim/soft/lcio-cpp.tgz -O - | tar -xz;
+git clone https://github.com/chekanov/HepSim
-cd lcio-cpp; make
+cd HepSim/analysis/cpp_lcio
 </code>
-It will compile "example.cpp" file linking FastJet package. Look at README file to see how to install the "LCIO" package required by this example.  Your LCIO" files from HepSim should be in the directory "data".
+Look at README file to see how to install the "LCIO" package required by this example.  Your LCIO" files from HepSim should be in the directory "data".
-Your program to read SLCIO files can look as this:
+Generally, you program to read SLCIO files can look as this:
+<hidden Click here to show the code example>
 <code cpp>
 string input="data.slcio";
@@ Line 126: / Line 127: @@
       if (nEvents==0) UTIL::LCTOOLS::dumpEvent( evt ) ;
            cout << "  Run : " << evt->getRunNumber() << " Detector: "      << evt->getDetectorName() <<  endl ;
            // print stored EVGEN parameters
+           const LCParameters& params=evt->getParameters();
            StringVec floatKeys ;
            int nFloatParameters = params.getFloatKeys( floatKeys ).size() ;
@@ Line 167: / Line 164: @@
   lcReader->close() ;
 </code>
+</hidden>
 This code example shows how to print float parameters from the EVGEN level (copied from the input ProMC).