Re: [ROOT] Setting range on axis.

From: Manoj Jha (Manoj.Jha@cern.ch)
Date: Wed Mar 24 2004 - 11:09:50 MET


Hi Oliver,
    Thanks for help.  I am attaching the example ("test.C") which is 
working and its output (output.ps).

Thanks and with regards,
manoj


Olivier Couet wrote:

>Hi Manoj,
>
>Well, had to tell what's going wrong without a little example reproducing 
>the problem. Can you send me one ?
>
> Cheers,       Olivier
>
>
>On Tue, 23 Mar 2004, Manoj Jha wrote:
>
>  
>
>>Hi Oliver,
>>    I followed your method. It is working. But, when I implementing in 
>>the script "efficiency.C (line no. 147-170) ",  I faced with the 
>>following error
>>
>>---------------------------------------------------------------------------------------------------------
>>
>>[jha@dulinux2 test]$ root efficiency.C
>>Warning in <Format>: string truncated: .:/cms/external/lcg/external/r...
>>  *******************************************
>>  *                                         *
>>  *        W E L C O M E  to  R O O T       *
>>  *                                         *
>>  *   Version   3.10/01    8 October 2003   *
>>  *                                         *
>>  *  You are welcome to visit our Web site  *
>>  *          http://root.cern.ch            *
>>  *                                         *
>>  *******************************************
>>
>>FreeType Engine v2.1.3 used to render TrueType fonts.
>>Compiled for linux with thread support.
>>
>>CINT/ROOT C/C++ Interpreter version 5.15.105, Sep 28 2003
>>Type ? for help. Commands must be C++ statements.
>>Enclose multiple statements between { }.
>>root [0]
>>Processing efficiency.C...
>>RTTI works locally ...
>>Running on a Pentium
>>
>>One clock tick corresponds to 3.846e-10 seconds
>>COBRA/GenUtil initializing
>>adding file /cms/Releases/COBRA/COBRA_7_5_0/src/Data/.cobrarc 1
>>adding file /cms/Releases/COBRA/COBRA_7_5_0/src/Data/.orcarc 0
>>adding file /cms/Releases/ORCA/ORCA_7_6_1/src/Data/.cobrarc 0
>>adding file /cms/Releases/ORCA/ORCA_7_6_1/src/Data/.orcarc 1
>>adding file /home/jha/program/orca/ORCA_7_6_1/src/Data/.cobrarc 0
>>adding file /home/jha/program/orca/ORCA_7_6_1/src/Data/.orcarc 0
>>adding file ./.cobrarc 0
>>adding file ./.orcarc 0
>>eta = 1.6 Bin_efficiency 1
>>eta = 1.7 Bin_efficiency 0.915094
>><TCanvas::MakeDefCanvas>: created default TCanvas with name c1
>>======= END ======
>>root [1]
>> *** Break *** segmentation violation
>> Generating stack trace...
>> 0x40a4ca68 in TGraph::Paint(char const*) + 0x8c from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGraf.so
>> 0x410d0ed0 in TPad::PaintModified() + 0x400 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGpad.so
>> 0x410b5e04 in TCanvas::Update() + 0x78 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGpad.so
>> 0x413c4077 in TRootCanvas::HandleContainerConfigure(Event_t*) + 0x4f 
>>from /cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x413c47e1 in TRootContainer::HandleConfigureNotify(Event_t*) + 0x3b 
>>from /cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x4136209c in TGFrame::HandleEvent(Event_t*) + 0x82 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x41345f7b in TGClient::HandleEvent(Event_t*) + 0xd7 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x41345c74 in TGClient::ProcessOneEvent() + 0x6e from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x41345cfe in TGClient::HandleInput() + 0x28 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x4134487a in TGInputHandler::Notify() + 0x22 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libGui.so
>> 0x401c643e in TUnixSystem::DispatchOneEvent(bool) + 0x3a from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libCore.so
>> 0x401313b3 in TSystem::InnerLoop() + 0x25 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libCore.so
>> 0x40131341 in TSystem::Run() + 0x7b from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libCore.so
>> 0x400e19f6 in TApplication::Run(bool) + 0x30 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libCore.so
>> 0x40e12bdb in TRint::Run(bool) + 0x311 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/lib/libRint.so
>> 0x08048890 in main + 0x90 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/bin/root.exe
>> 0x40f225d9 in __libc_start_main + 0x95 from /lib/libc.so.6
>> 0x08048711 in _Unwind_Resume + 0x35 from 
>>/cms/external/lcg/external/root/3.10.01/rh73_gcc32/bin/root.exe
>>Root >
>>-------------------------------------------------------------------------------------------------------------------------------------------------
>>
>>Could you please enlighten me in this case ? Waiting for your response.
>>
>>Thanks and with regards,
>>manoj
>>
>>
>>Olivier Couet wrote:
>>
>>    
>>
>>>Hello Manoj,
>>>
>>>Ah yes, it seems my way is better on the y axis :-) try:
>>>
>>>{
>>>  Int_t n=20;
>>>  Double_t x[n],y[n];
>>>  for (Int_t i=0; i<n; i++) {
>>>     x[i]=i*0.1;
>>>     y[i]=10*sin(x[i]+0.2);
>>>  }
>>>  TGraph *gr1 = new TGraph (n,x,y);
>>>  TH1F *h1 = new TH1F("","",100,0,5);
>>>  h1->SetMaximum(9); 
>>>  h1->SetMinimum(2); 
>>>  gr1->SetHistogram(h1);
>>>  TAxis *xaxis = gr1->GetXaxis();
>>>  xaxis->SetLimits(0,5);
>>>  gr1->Draw("AC*");
>>>}
>>>
>>>Cheers,      Olivier
>>>
>>>
>>>
>>>On Tue, 23 Mar 2004, Manoj Jha wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Hi Oliver,
>>>>      Thanks again. Rene answer worked. But, it is not working in the 
>>>>script "efficiency.C" ( line no. 147-166). I have set the range of Y 
>>>>axis from (0,1) in the script. In the plot, the range is from (0.90,1.0).
>>>>
>>>>Thanks and with regards,
>>>>manoj
>>>>
>>>>
>>>>Olivier Couet wrote:
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>Hi Manoj,
>>>>>
>>>>>I answered you request before Rene's answer arrived. His answer is 
>>>>>simpler. The  SetMaximum define the maximum of the histogram used by 
>>>>>TGraph
>>>>>
>>>>>Cheers, Olivier
>>>>>
>>>>>
>>>>>On Tue, 23 Mar 2004, Manoj Jha wrote:
>>>>>
>>>>>
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>>>Hi Olivier,
>>>>>> Thanks for mail. Could you please tell me the meaning of the 
>>>>>>following statment
>>>>>>
>>>>>>h1->SetMaximum(12);
>>>>>>
>>>>>>
>>>>>>
>>>>>>waiting for your response.
>>>>>>
>>>>>>Best wishes,
>>>>>>manoj
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>Olivier Couet wrote:
>>>>>>
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>>>Hi Manoj,
>>>>>>>
>>>>>>>One possible way is;
>>>>>>>
>>>>>>>{
>>>>>>>Int_t n=20;
>>>>>>>Double_t x[n],y[n];
>>>>>>>for (Int_t i=0; i<n; i++) { 
>>>>>>>   x[i]=i*0.1;
>>>>>>>   y[i]=10*sin(x[i]+0.2);
>>>>>>>}
>>>>>>>TGraph *gr1 = new TGraph (n,x,y);
>>>>>>>TH1F *h1 = new TH1F("","",100,0,5);
>>>>>>>h1->SetMaximum(12);
>>>>>>>gr1->SetHistogram(h1);   
>>>>>>>gr1->Draw("AC*");
>>>>>>>}
>>>>>>>
>>>>>>>Cheers,      Olivier
>>>>>>>
>>>>>>>On Tue, 23 Mar 2004, Manoj Jha wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>    
>>>>>>>
>>>>>>>         
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>>>>Dear rooters,
>>>>>>>>   I am facing problem in setting range of the axis of the graph. For 
>>>>>>>>this purpose, I had written a root scripts and  attaching it (51.C).  In 
>>>>>>>>the scripts, I am trying to  set the range of the  X axis from (0,5). 
>>>>>>>>But, it is taking the default one (0,2). I am also attaching the output 
>>>>>>>>(graph.ps) that i am getting from the root script (51.C).  Please let me 
>>>>>>>>know the possible solution for it.
>>>>>>>>
>>>>>>>>With best wishes ,
>>>>>>>>manoj
>>>>>>>>
>>>>>>>>
>>>>>>>> 
>>>>>>>>
>>>>>>>>      
>>>>>>>>
>>>>>>>>           
>>>>>>>>
>>>>>>>>                
>>>>>>>>
>>>>>>>    
>>>>>>>
>>>>>>>         
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>   
>>>>
>>>>        
>>>>
>>> 
>>>
>>>      
>>>
>>    
>>
>
>  
>





{ Int_t n=20; Double_t x[n],y[n]; for (Int_t i=0; i<n; i++) { x[i]=i*0.1; y[i]=10*sin(x[i]+0.2); } TGraph *gr1 = new TGraph (n,x,y); TH1F *h1 = new TH1F("","",100,0,5); h1->SetMaximum(11); h1->SetMinimum(1); gr1->SetHistogram(h1); TAxis *xaxis = gr1->GetXaxis(); xaxis->SetLimits(0,3); gr1->Draw("AC*"); }



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