Differences

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

--- users:taarre:edm [2014/05/28 10:56] – created taarre
+++ users:taarre:edm [2014/05/28 11:10] (current) – taarre
@@ Line 17: / Line 17: @@
   vector<reco::GenParticle>             "genParticles"             ""         "SIM"
   vector<reco::Track>                   "generalTracks"            ""         "RECO"
-You then need you own analyzer. Check out [[https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookWriteFrameworkModule|Writing your own EDAnalyzer]]
+First column is the name of the class, second is the label.
+Google your class reference to see the functions of the class. For instance "reco::GenParticle reference" gives you the page [[https://cmssdt.cern.ch/SDT/doxygen/CMSSW_5_3_6/doc/html/d5/dd4/classreco_1_1GenParticle.html| reco::GenParticle class reference]].
-Google your class reference to see the functions of the class. For instance "reco::GenParticle reference" gives you the page [[https://cmssdt.cern.ch/SDT/doxygen/CMSSW_5_3_6/doc/html/d5/dd4/classreco_1_1GenParticle.html| reco::GenParticle class reference]]
+You then need you own analyzer. Check out [[https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookWriteFrameworkModule|Writing your own EDAnalyzer]].\\
+For examples, check out  /shome/jngadiub/TestPAT/CMSSW_5_3_11/src/Demo/MyEdmNtupleProducer/src/CandGenParticlesProducer.cc.\\
+To get your class
+  edm::Handle<reco::GenParticleCollection> genParticles;
+  iEvent.getByLabel(genSrc_, genParticles);
+To loop
+  for(size_t i = 0; i < genParticles->size(); ++i )
+  {
+    const reco::GenParticle          & ParticleCand = (*genParticles)[i];
+    const reco::GenParticleRefVector & motherRefs   = ParticleCand.motherRefVector();
+    const reco::GenParticleRefVector & daughterRefs = ParticleCand.daughterRefVector();
+  }
+To for instance get eta and pt
+  ParticleCand.eta()
+  ParticleCand.pt()

Physik-Institut

CMS Wiki Pages

Differences

Physik-Institut

CMS Wiki Pages

User Tools

Site Tools

Differences

Page Tools