> 1. TBrowser not able to manipulate this arrays any more
> ( with older version it was fine)
I will investigate the problem. You should still be able to use the
TBrowser when you do NOT load the MakeClass generate file
> tree->Draw("MUO.T0[0]") -> draws all T0 for the first muon, but if I need
> to compare first and second elements in array?
What you have is a 1 dimension array stored into another 1 dimension array
(the TClonesArray). So you can use:
tree->Draw("MUO.T0[0][0]-MUO.T0[0][1]");
Cheers,
Philippe.
-----Original Message-----
From: Elena Vataga [mailto:vataga@fnal.gov]
Sent: Thursday, April 18, 2002 8:09 AM
To: Philippe Canal
Cc: roottalk@pcroot.cern.ch
Subject: RE: [ROOT] aceess to array elements from TObject
Hello!
Thanks a lot for your reply!
I took CVS version and MakeClass produced correct code:
Int_t MUO_nt0[kMaxMUO]; //[MUO_]
Int_t MUO_nt1[kMaxMUO]; //[MUO_]
Int_t *MUO_mT0[kMaxMUO]; //[MUO_nt0]
Int_t *MUO_mT1[kMaxMUO]; //[MUO_nt1]
Int_t *MUO_C0[kMaxMUO]; //[MUO_nt0]
Int_t *MUO_C1[kMaxMUO]; //[MUO_nt1]
Float_t *MUO_T0[kMaxMUO]; //[MUO_nt0]
Float_t *MUO_T1[kMaxMUO]; //[MUO_nt1]
But:
1. TBrowser not able to manipulate this arrays any more
( with older version it was fine)
2. I still do not understand how to access array elements in tree->Draw:
*Br 76 :MUO.T0 : T0[MUO_] *
*Entries : 6971 : Total Size= 49626 bytes File Size = 18920 *
*Baskets : 1 : Basket Size= 64000 bytes Compression= 2.62 *
*............................................................................*
tree->Draw("MUO.T0[0]") -> draws all T0 for the first muon, but if I need
to compare first and second elements in array?
Will be grateful for your reply,
regards,
Elena
On Wed, 17 Apr 2002, Philippe Canal wrote:
> Hi,
>
> ( In our usual pre-planning :) ), this has been fixed 5 days ago
> and the fix is available in the head of the CVS repository.
>
> The problem was that MakeClass was not creating the correct code
> in the case of a TClonesArray containing object of a class that has
> variable size array. As you pointed out it should have had a '*' in
> the date member definition. However this is not sufficient since the
> reading part also needed to be fixed.
>
> Cheers,
> Philippe.
>
> -----Original Message-----
> From: owner-roottalk@pcroot.cern.ch
> [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Elena Vataga
> Sent: Wednesday, April 17, 2002 7:23 AM
> To: Rene Brun
> Cc: roottalk@pcroot.cern.ch
> Subject: [ROOT] aceess to array elements from TObject
>
>
>
>
> Hello rooters!
>
>
> I used the following arrays in my TObject:
>
> class TCMXmuon: public TObject {
>
> protected:
> //---------------------------------------------------------------
> // data members
> //---------------------------------------------------------------
> TLorentzVector lvec;
>
> Int_t DetCode; // (1)CMU (2)CMP (3)CMU+CMP (4)CMX (5)BMU
> ....
>
> Int_t nt0; // number of inner times
>
> Int_t* mT0; //[nt0] Mean Time in inner layer
> Int_t* C0; //[nt0] Counter in inner layer
> Float_t* T0; //[nt0] Time in inner layer
>
> ...
> Int_t nt1; // number of outer times
> Float_t* T1; //[nt1] Time in outer layer
>
>
> My question is: how can I access first, second etc member of
> my array variables (T0[0], T0[1] etc) inside root - they look like flat
> numbers and not array?
>
> *............................................................................*
> *Br 70 :MUO.nt0 : nt0[MUO_] *
> *Entries : 4971 : Total Size= 47305 bytes File Size = 12009 *
> *Baskets : 1 : Basket Size= 64000 bytes Compression= 3.94 *
> *............................................................................*
> *Br 71 :MUO.nt1 : nt1[MUO_] *
> *Entries : 4971 : Total Size= 47305 bytes File Size = 11753 *
> *Baskets : 1 : Basket Size= 64000 bytes Compression= 4.02 *
> *............................................................................*
> *Br 72 :MUO.mT0 : mT0[MUO_] *
> *Entries : 4971 : Total Size= 49127 bytes File Size = 13721 *
> *Baskets : 1 : Basket Size= 64000 bytes Compression= 3.58 *
> *............................................................................*
> *Br 73 :MUO.mT1 : mT1[MUO_] *
> *Entries : 4971 : Total Size= 48567 bytes File Size = 13918 *
> *Baskets : 1 : Basket Size= 64000 bytes Compression= 3.49 *
> *............................................................................*
> *Br 74 :MUO.C0 : C0[MUO_] *
> *Entries : 4971 : Total Size= 49126 bytes File Size = 18567 *
> *Baskets : 1 : Basket Size= 64000 bytes Compression= 2.65 *
> *............................................................................*
>
>
>
> I tried to MakeClass from my tree and I am getting in the header:
> Int_t MUO_nt0[kMaxMUO]; //[MUO_]
> Int_t MUO_nt1[kMaxMUO]; //[MUO_]
> Int_t MUO_mT0[kMaxMUO]; //[MUO_]
> Int_t MUO_mT1[kMaxMUO]; //[MUO_]
> Int_t MUO_C0[kMaxMUO]; //[MUO_]
> Int_t MUO_C1[kMaxMUO]; //[MUO_]
> Float_t MUO_T0[kMaxMUO]; //[MUO_]
> Float_t MUO_T1[kMaxMUO]; //[MUO_]
>
> so it is not an array?
>
>
> Will be most grateful for any advice,
> regards,
> Elena
>
>
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