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Add protection in phi peak finding #1832

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Add protection in phi peak finding #1832

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15 changes: 10 additions & 5 deletions CalPatRec/src/PhiClusterFinder_module.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -400,27 +400,32 @@ namespace mu2e {
// Check to the left of the peak bin
int bincheck = max_bin;
while(_hist1.GetBinContent(bincheck) >=_threshold) {
//if(_debug>3) std::cout<<"bincontent = "<<_hist1.GetBinContent(bincheck)<<" bincheck = "<<bincheck<<" "<<_hist1.GetBinCenter(bincheck)<<std::endl;
if (bincheck > _threshold) bincheck--;
if (bincheck > 1) bincheck--;
else bincheck = nbx;
nsteps++;
if (nsteps >= nbx) {
cluphimin = 0;
cluphimax = 2*M_PI;
if (_debug>2) printf("Phi min = %10.3f max : %10.3f\n",cluphimin,cluphimax);
if (_debug>2) printf("Hit maximum steps --> Phi min = %10.3f max : %10.3f\n",cluphimin,cluphimax);
return;
}
}
// Check to the right of the highest bin
nsteps = 0;
int bincheckr=max_bin;
while(_hist1.GetBinContent(bincheckr)>=_threshold){
//if(_debug>3) std::cout<<"Rbincontent = "<<_hist1.GetBinContent(bincheckr)<<" bincheck = "<<bincheckr<<" "<<_hist1.GetBinCenter(bincheckr)<<std::endl;
if(bincheckr<nbx) bincheckr++;
else bincheckr = 1;
nsteps++;
if (nsteps >= nbx) {
cluphimin = 0;
cluphimax = 2*M_PI;
if (_debug>2) printf("Hit maximum steps --> Phi min = %10.3f max : %10.3f\n",cluphimin,cluphimax);
return;
}
}
cluphimax = _hist1.GetXaxis()->GetBinCenter(bincheckr)+bin/2;
cluphimin = _hist1.GetXaxis()->GetBinCenter(bincheck )-bin/2;
//std::cout<<"bincheck = "<<_hist1.GetXaxis()->GetBinCenter(bincheck)<<" r bincheck = "<<_hist1.GetXaxis()->GetBinCenter(bincheckr)<<std::endl;
if (_debug>3) printf("Phi min = %10.3f max : %10.3f\n",cluphimin,cluphimax);
}

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