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hsimpleProxy.C File Reference
Tutorials » IO tutorials » TTree tutorials

Detailed Description

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Used by hsimpleProxyDriver.C.

To use this file, generate hsimple.root:

root.exe -b -q hsimple.C
b
#define b(i)
Definition RSha256.hxx:100
q
float * q
Definition THbookFile.cxx:89

and do

TFile *file = TFile::Open("hsimple.root");
TTree *ntuple ; file->GetObject("ntuple",ntuple);
ntuple->Draw("hsimpleProxy.C+");
TDirectory::GetObject
void GetObject(const char *namecycle, T *&ptr)
Get an object with proper type checking.
Definition TDirectory.h:213
TFile
A file, usually with extension .root, that stores data and code in the form of serialized objects in ...
Definition TFile.h:130
TFile::Open
static TFile * Open(const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0)
Create / open a file.
Definition TFile.cxx:3787
TTree
A TTree represents a columnar dataset.
Definition TTree.h:89
double hsimpleProxy() {
return px;
}
Author
Rene Brun

Definition in file hsimpleProxy.C.