Revision 6bef5d95c9c192b6cb1ddcb0cc19ca28e897739d authored by Rene Brun on 06 April 2005, 15:56:14 UTC, committed by Rene Brun on 06 April 2005, 15:56:14 UTC
Template implementation should be in header files (especially when the template class contains a ClassDef). git-svn-id: http://root.cern.ch/svn/root/trunk@11511 27541ba8-7e3a-0410-8455-c3a389f83636
1 parent 854d6f8
copytree.C
{
// Example of Root macro to copy a subset of a Tree to a new Tree
// The input file has been generated by the program in $ROOTSYS/test/Event
// with Event 1000 1 1 1
gROOT->Reset();
gSystem->Load("$ROOTSYS/test/libEvent");
//Get old file, old tree and set top branch address
TFile *oldfile = new TFile("$ROOTSYS/test/Event.root");
TTree *oldtree = (TTree*)oldfile->Get("T");
Event *event = new Event();
oldtree->SetBranchAddress("event",&event);
oldtree->SetBranchStatus("*",0);
oldtree->SetBranchStatus("event",1);
oldtree->SetBranchStatus("fNtrack",1);
oldtree->SetBranchStatus("fNseg",1);
oldtree->SetBranchStatus("fH",1);
//Create a new file + a clone of old tree in new file
TFile *newfile = new TFile("small.root","recreate");
TTree *newtree = oldtree->CloneTree();
newtree->Print();
newfile->Write();
delete oldfile;
delete newfile;
}
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