Re: ROOT, TTree/TNtuple instead of NTUPLE in GEANT3

In your Fortran program write your dat to an ascii file. In ROOT, create a Tree reading data from this ascii file, ie

   TTree T("T","test");
   T.ReadFile("myfile.dat");
see doc of TTree::ReadFile

Rene Brun

Rafael Hakobyan wrote:
> Dear Rene and roottalkers,
>
> I am a beginer of using ROOT and I would appreciate if you give me an
> instruction about
> whether it is possible to arrange ROOT TTree/TNtuple output in my
> FORTRAN program for the
> detector simulation using GEANT3 package (using interface or .....) ?
>
> Or, what would be your suggestion to me if there is program written
> in FORTRAN and I want to use ROOT TTree/TNtuple ?
>
> Thank you in advance,
> Rafael
>
> Rene Brun wrote:
>> Hi Joel,
>>
>> On macosx and windows, I get the same result. See attachement
>>
>> Rene
>>
>> Flanders, Joel M. (JSC-SF2)[LM] wrote:
>>> If I run the macro, I get the attached canvas which is clearly
>>> different
>>> from yours. I do not understand how I am getting different results. I
>>> need to understand what I am doing differently that is giving me
>>> different results.
>>>
>>> Thanks,
>>> Joel
>>> -----Original Message-----
>>> From: owner-roottalk_at_pcroot.cern.ch
>>> [mailto:owner-roottalk_at_pcroot.cern.ch] On Behalf Of Bertrand Bellenot
>>> Sent: Friday, May 26, 2006 2:08 PM
>>> To: Rene Brun
>>> Cc: Flanders, Joel M. (JSC-SF2)[LM]; olivier.couet_at_cern.ch;
>>> roottalk_at_cern.ch
>>> Subject: Re: [ROOT] Problem with Time Axis
>>>
>>> Hi,
>>>
>>> I don't see the problem with cvs head version of Root on Windows XP
>>> (see
>>> the saved (gif) canvas in attachment).
>>>
>>> Cheers,
>>> Bertrand.
>>>
>>> Rene Brun wrote:
>>>
>>>> Hi Joel,
>>>>
>>>> I cannot reproduce your problem on Linux and macosx.
>>>> Olivier will investigate what happens on Windows as soon as he will be
>>>>
>>>
>>>
>>>> back on Monday.
>>>>
>>>> Rene Brun
>>>>
>>>>
>>>> On Thu, 25 May 2006, Flanders, Joel M. (JSC-SF2)[LM] wrote:
>>>>
>>>>
>>>>> I am using windows xp and ROOT version 5.11/02. I ran the following
>>>>> macro:
>>>>>
>>>>> {
>>>>> TDatime CurrentDate(2006,03,31,00,00,00); TGraph *gr7 = new TGraph();
>>>>> gr7->SetPoint(0,0,0);
>>>>> gr7->SetPoint(1,43200,1);
>>>>> gr7->SetPoint(2,86400,2);
>>>>> gr7->SetPoint(3,129600,3);
>>>>> gr7->SetPoint(4,172800,4);
>>>>> gr7->SetPoint(5,216000,5);
>>>>> gr7->GetXaxis()->SetTimeOffset(CurrentDate.Convert(),"local");
>>>>> gr7->GetXaxis()->SetTitle("Date");
>>>>> gr7->GetXaxis()->SetTimeDisplay(1);
>>>>> gr7->GetXaxis()->SetTimeFormat("#splitline{%m\/%d\/%y}{%H\:%M\:%S}");
>>>>> gr7->GetXaxis()->SetLabelOffset(0.03);
>>>>> gr7->GetXaxis()->SetNdivisions(508);
>>>>> gr7->GetXaxis()->SetTitleOffset(1.7);
>>>>> gr7->GetYaxis()->SetTitle("Y-Axis");
>>>>> gr7->SetMarkerStyle(20);
>>>>> gr7->Draw("ALP");
>>>>> }
>>>>>
>>>>> I get a canvas with a time axis plot. The problem is for the first
>>>>> 2 days major axis divisions come every 12 hours, but during the
>>>>> transition from day 2 to day 3 the first major division on day 3
>>>>> comes 13 hours after the last one on day 2. After this it goes
>>>>> back to 12 hours between major divisions. However this causes the
>>>>> endpoint
>>>>>
>>>
>>>
>>>>> of the data to be 1 hour ahead of where it should be. Am I doing
>>>>> something wrong here to cause this issue?
>>>>>
>>>>> I had a colleague who uses Linux (CentOS) test this on his
>>>>> workstation, and he gets the same error.
>>>>>
>>>>> Thanks,
>>>>> Joel Flanders
>>>>>
>>>>>
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
>>>
>>
>>
>> ------------------------------------------------------------------------
>>
>
Received on Mon Jun 05 2006 - 18:19:59 MEST