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Re: Finding true vertex position of mother particles. [message #12271 is a reply to message #12270]

Fri, 15 July 2011 11:11

donghee
Messages: 385
Registered: January 2009
Location: Germnay

first-grade participant

From: *kph.uni-mainz.de

Hi stefano,

I'm nearly come to the end.... could you say where I made wrong with below code (part of analysis code)

Quote:

//Data accessing!
TFile *inFile = TFile::Open(inSimFile,"READ");
TTree *tree=(TTree *) inFile->Get("cbmsim") ;

TClonesArray* mc_array=new TClonesArray("PndMCTrack");
tree->SetBranchAddress("MCTrack",&mc_array);
TClonesArray* event=new TClonesArray("FairMCEventHeader");
tree->SetBranchAddress("MCEventHeader",&event);

//Event loop
PndEventReader evr(inPidFile);
while (evr.GetEvent() && i++<nEntries)
{
tree->GetEntry(i);

//Event info
FairMCEventHeader *mc_info = (FairMCEventHeader*)event->At(i);

//Print to check
cout<<mc_info->GetX()<<endl;
cout<<mc_info->GetY()<<endl;
cout<<mc_info->GetZ()<<endl;
}

Error message in root is

Quote:

Error: illegal pointer to class object mc_info 0x0 3481

Cheers,
Donghee

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[Message index]

		Finding true vertex position of mother particles. By: donghee on Mon, 20 June 2011 22:49
		Re: Finding true vertex position of mother particles. By: Ralf Kliemt on Tue, 21 June 2011 09:47
		Re: Finding true vertex position of mother particles. By: donghee on Tue, 21 June 2011 09:59
		Re: Finding true vertex position of mother particles. By: donghee on Thu, 14 July 2011 14:30
		Re: Finding true vertex position of mother particles. By: StefanoSpataro on Thu, 14 July 2011 21:10
		Re: Finding true vertex position of mother particles. By: donghee on Fri, 15 July 2011 11:11
		Re: Finding true vertex position of mother particles. By: Tobias Stockmanns on Fri, 15 July 2011 12:10
		Re: Finding true vertex position of mother particles. By: donghee on Fri, 15 July 2011 11:50
		Re: Finding true vertex position of mother particles. By: asanchez on Fri, 15 July 2011 12:00
		Re: Finding true vertex position of mother particles. By: Ralf Kliemt on Fri, 15 July 2011 12:23
		Re: Finding true vertex position of mother particles. By: donghee on Fri, 15 July 2011 12:41

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