Hi Jean-Eric,
Progress is slow with folders and trees, but there is some progress.
I implemented in version 3.03 the possibility to create a true branch hierarchy
(TBranchElement has now a Branch method).
This addition was required to fully support an effective Tree
as it is possible with folders, but I had no time yet to improve
(and simplify) the current interface between Folders->Trees->Folders.
Rene Brun
Jean-Eric Campagne wrote:
>
> Hello,
>
> Below you will find a part of an initialisation of a Monte Carlo Tree
> Hit processing. The Tree Branch has been created acoording to the "Post
> a List in a Folder" technics.
>
> My first question concerns the possibility to create automatically the
> Folder hierachy (instead of calling the routine createFolder which
> makes the job) following the name of the branch that is coded in the
> FindBranch method: .topFold.RunMC.EventMC.Hits.MCHitList. At the most
> convenient it would be nice to just call FindBranch("MCHitList") and if
> there is no ambiguity (this is the responsaboility of the code
> developper) then the Folder hierarchy can be infered and created?
>
> My second question concerns the MakeClass in an interactive Root
> session, reading such Tree is it now with root 3.03/05 possible to
> generate automatically a code that make access to the elements of the
> List in the branch?
>
> Regards
> J.E Campagne
>
> //------------------------------------------------------
> RootStorage::RootStorage(const std::string& fileIn, const std::string& fileOut){
> m_status = BaseStorage::OK;
>
> //create Folders Hierarchy
> createFolders();
>
> //Open the Input file
> m_fileIn = new TFile(fileIn.data(),"read");
> if (!m_fileIn->IsOpen()) {
> cout << "RootStorage: File " << fileIn << " cannot be openned " << endl;
> m_status = BaseStorage::FATAL;
> }
>
> //create Hit List
> m_mcHitList = new TList();
> m_mcHitList->SetName("MCHitList");
>
> //Get the Tree of the MC hits
> if (!m_treeMCH) {
> cout << "RootStorage: No TreeMCH in file " << m_fileIn->GetName() << endl;
> m_status = BaseStorage::FATAL;
> }
>
> //How to avoid this hard coding style...
> m_branchMCH = m_treeMCH->FindBranch(".topFold.RunMC.EventMC.Hits.MCHitList");
>
> if (!m_branchMCH){
> cout << "RootStorage: Cannot retreive MCM branch " << endl;
> m_status = BaseStorage::FATAL;
> }
> .............................................................................
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