Re: [ROOT] branch splitting

From: Rene Brun (Rene.Brun@cern.ch)
Date: Thu Jun 10 2004 - 16:13:24 MEST


Mark,

The TreeViewer is showing the hierarchy in the form a.b.c.
This is done on purpose to facilitate correlations between items at different
level.

Rene brun

> Mark Wallace wrote:
> 
> Hello,
>     When I try the Print() command I see the same thing you do, but when I
> look at the Tree Viewer it shows them as leaves like so
> 
> [tree->StartViewer();]
> Is this a problem with the tree viewer? Is there a way to open and close
> another level in the the tree viewer?
> 
> Thanks.
> 
> Mark
> 
> Rene Brun wrote:
> 
> > Mark,
> >
> > I cannot reproduce this problem.
> > I created a file levels.C with your classes, then did
> >
> > root > .L levels.C+
> > root > level1 *l = new level1
> > root > TTree T("T","test")
> > root > T.Branch("top","level1",&l,16000,99)
> > root > T.Print()
> > The last command produces the correct output below
> >
> > Rene Brun
> >
> > ******************************************************************************
> > *Tree    :T         : test
> > *
> > *Entries :        0 : Total =           19515 bytes  File  Size = 0 *
> > *        :          : Tree compression factor =   1.00
> > *
> > ******************************************************************************
> > *Branch  :top
> > *
> > *Entries :        0 : BranchElement (see below)
> > *
> > *............................................................................*
> > *Br    0 :fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        588 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    1 :fBits     :
> > *
> > *Entries :        0 : Total  Size=        564 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    2 :det1      :
> > *
> > *Entries :        0 : Total  Size=       7947 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    3 :det1.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    4 :det1.fBits :
> > *
> > *Entries :        0 : Total  Size=        594 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    5 :det1.det1.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        648 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    6 :det1.det1.fBits :
> > *
> > *Entries :        0 : Total  Size=        624 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    7 :det1.det1.energy :
> > *
> > *Entries :        0 : Total  Size=        630 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    8 :det1.det1.time :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br    9 :det1.det2.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        648 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   10 :det1.det2.fBits :
> > *
> > *Entries :        0 : Total  Size=        624 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   11 :det1.det2.energy :
> > *
> > *Entries :        0 : Total  Size=        630 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   12 :det1.det2.time :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   13 :det1.energy :
> > *
> > *Entries :        0 : Total  Size=        600 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   14 :det1.time :
> > *
> > *Entries :        0 : Total  Size=        588 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   15 :det2      :
> > *
> > *Entries :        0 : Total  Size=       7947 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   16 :det2.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   17 :det2.fBits :
> > *
> > *Entries :        0 : Total  Size=        594 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   18 :det2.det1.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        648 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   19 :det2.det1.fBits :
> > *
> > *Entries :        0 : Total  Size=        624 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   20 :det2.det1.energy :
> > *
> > *Entries :        0 : Total  Size=        630 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   21 :det2.det1.time :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   22 :det2.det2.fUniqueID :
> > *
> > *Entries :        0 : Total  Size=        648 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   23 :det2.det2.fBits :
> > *
> > *Entries :        0 : Total  Size=        624 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   24 :det2.det2.energy :
> > *
> > *Entries :        0 : Total  Size=        630 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   25 :det2.det2.time :
> > *
> > *Entries :        0 : Total  Size=        618 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   26 :det2.energy :
> > *
> > *Entries :        0 : Total  Size=        600 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   27 :det2.time :
> > *
> > *Entries :        0 : Total  Size=        588 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   28 :energy    :
> > *
> > *Entries :        0 : Total  Size=        570 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> > *Br   29 :time      :
> > *
> > *Entries :        0 : Total  Size=        558 bytes  One basket in memory
> > *
> > *Baskets :        0 : Basket Size=      16000 bytes  Compression=   1.00
> > *
> > *............................................................................*
> >
> >
> >
> > Mark Wallace wrote:
> >
> >
> >> Hello,
> >>     I'm using root 3.10/01 on debian linux.  I'm trying to understand how
> >> to
> >> use the splitting of a branch.  I have classes of classes of classes and
> >> want
> >> to make the tree containing branches of branches of branches and I can't
> >> seem
> >> to do that.  If I try
> >>
> >> TTree *t2 = new TTree("t2","Test of class");
> >> level1 *test = new level1();
> >> t2->Branch("test","level1",&test,32000,99);
> >>
> >> where the classes are defined below, I get a tree with only splitting of
> >> the
> >> first level.  I saw somewhere on the web that said this was the limit for
> >> branch splitting when the branch is a class.  The question I have is how
> >> could
> >> you do this manually.  If you can't split a class more then level 2, what
> >> can
> >> you split 99 times?  I would like something like this.
> >>
> >> det1
> >>         -energy
> >>         -time
> >>         det1
> >>                 -energy
> >>                 -time
> >>                 det1
> >>                             -energy
> >>                             -time
> >>                 det2
> >>                             -energy
> >>                             -time
> >>         det2
> >>                 -energy
> >>                 -time
> >>                 det1
> >>                             -energy
> >>                             -time
> >>                 det2
> >>                             -energy
> >>                             -time
> >>
> >> Can this be done? if so how?
> >>
> >> Thanks for help!
> >>
> >> Mark Wallace
> >>
> >> class level3 : public TObject {
> >>  public:
> >>   Float_t energy;
> >>   Float_t time;
> >>   level3() {};
> >>   ~level3() {};
> >>   ClassDef (level3,1)
> >> };
> >> class level2 : public TObject {
> >>  public:
> >>   level3 det1;
> >>   level3 det2;
> >>   Float_t energy;
> >>   Float_t time;
> >>   level2() {};
> >>   ~level2() {};
> >>   ClassDef (level2,1)
> >> };
> >> class level1 : public TObject {
> >>  public:
> >>   level2 det1;
> >>   level2 det2;
> >>   Float_t energy;
> >>   Float_t time;
> >>   level1() {};
> >>   ~level1() {};
> >>   ClassDef (level1,1)
> >> };
> >>
> >>
> 
>  [Image]



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