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mocchiut |
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/** |
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* \file CaloAxis.cpp |
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* \author Elena Vannuccini |
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*/ |
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#if !defined(__CINT__) || defined(__MAKECINT__) |
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#include <CaloAxis.h> |
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#endif |
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//=============================================================================== |
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// |
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// |
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// |
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// |
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//=============================================================================== |
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/** |
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* Add a calorimeter hit |
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* @param iis strip 0-95 |
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* @param iip plane 0-21 |
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* @param fq signal |
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* @param fz z-coordinate |
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* @param fxy x or y-coordinate |
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*/ |
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void CaloEvent::Add(int iis, int iip, float fq, float fz, float fxy){ |
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// cout << " CaloEvent::Add()"<<endl; |
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ids.push_back(iis); |
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idp.push_back(iip); |
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q.push_back(fq); |
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zcoord.push_back(fz); |
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xycoord.push_back(fxy); |
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}; |
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/** |
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* Reset |
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*/ |
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void CaloEvent::Reset(){ |
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// cout << " CaloEvent::Reset()"<<endl; |
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ids.clear(); |
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idp.clear(); |
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q.clear(); |
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zcoord.clear(); |
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xycoord.clear(); |
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}; |
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/** |
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* Set a CaloEvent from CaloLevel1 object |
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*/ |
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void CaloEvent::Set(CaloLevel1* calo, int view, Bool_t usemechanicalalignement){ |
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Reset(); |
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// cout << " CaloEvent::Set()"<<endl; |
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CaloStrip cstrip; |
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cstrip = CaloStrip(calo,usemechanicalalignement); |
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for(int ih=0;ih<calo->istrip;ih++){ |
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int iv=-1; |
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int ip=-1; |
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int is=-1; |
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calo->DecodeEstrip(ih,iv,ip,is); |
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if(iv==view){ |
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cstrip.Set(view,ip,is); |
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float fxy = 0.; |
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if( !view ) fxy = cstrip.GetX(); |
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else fxy = cstrip.GetY(); |
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float fz = cstrip.GetZ(); |
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float fq = cstrip.GetE(); |
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if(fq>0)Add(is,ip,fq,fz,fxy); |
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} |
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} |
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}; |
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//=============================================================================== |
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// |
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// |
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// |
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// |
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//=============================================================================== |
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/** |
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* Initialization |
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*/ |
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void CaloAxis::Init(){ |
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for(Int_t i=0; i<2;i++){ |
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par[i]=0; |
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for(Int_t j=0; j<2;j++)covpar[i][j]=0; |
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}; |
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sel = 0; |
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axis = 0; |
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for(Int_t i=0; i<22; i++){ |
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cog[i]=0; |
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qpl[i]=0; |
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} |
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} |
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/** |
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* Reset |
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*/ |
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void CaloAxis::Reset(){ |
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x.clear(); |
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y.clear(); |
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w.clear(); |
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q.clear(); |
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if(sel)sel->Delete(); |
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if(axis)axis->Delete(); |
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Init(); |
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} |
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/** |
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* |
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*/ |
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void CaloAxis::Add(float xin, float yin){ |
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x.push_back(xin); |
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y.push_back(yin); |
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w.push_back(1.); |
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q.push_back(0.); |
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}; |
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void CaloAxis::Add(float xin, float yin, float qin){ |
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x.push_back(xin); |
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y.push_back(yin); |
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q.push_back(qin); |
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w.push_back(1.); |
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}; |
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void CaloAxis::Add(float xin, float yin, float qin, float win){ |
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x.push_back(xin); |
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y.push_back(yin); |
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w.push_back(win); |
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q.push_back(qin); |
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}; |
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/** |
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* Fit a straight line thtrough the stored hits |
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*/ |
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int CaloAxis::Fit(){ |
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Float_t SSS = 0; |
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Float_t SSX = 0; |
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Float_t SXX = 0; |
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Float_t SSY = 0; |
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Float_t SXY = 0; |
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Int_t np=0; |
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for(Int_t i=0; i<(int)(x.size()); i++){ |
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SSS += w[i]*w[i]; |
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SSX += x[i]*w[i]*w[i]; |
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SXX += x[i]*x[i]*w[i]*w[i]; |
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SSY += y[i]*w[i]*w[i]; |
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SXY += x[i]*y[i]*w[i]*w[i]; |
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if(w[i])np++; |
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} |
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Float_t det = SSS*SXX-SSX*SSX; |
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if(det==0)return 0; |
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if(np<3)return 0; |
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par[0] = (SSY*SXX-SXY*SSX)/det; |
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par[1] = (SXY*SSS-SSY*SSX)/det; |
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return 1; |
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}; |
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/** |
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* Print select hits |
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*/ |
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void CaloAxis::Print(){ |
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for(Int_t i=0; i<(int)(x.size()); i++) |
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if(w[i])cout << x[i] << " - "<<y[i]<<endl; |
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} |
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float* CaloAxis::GetX(){ |
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float *xout = new float[(int)(x.size())]; |
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for(Int_t i=0; i<(int)(x.size()); i++)xout[i]=x[i]; |
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return xout; |
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} |
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float* CaloAxis::GetY(){ |
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float *yout = new float[(int)(y.size())]; |
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for(Int_t i=0; i<(int)(y.size()); i++) yout[i]=y[i]; |
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return yout; |
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} |
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float* CaloAxis::GetQ(){ |
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float *qout = new float[(int)(q.size())]; |
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for(int i=0; i<(int)(q.size()); i++) qout[i]=q[i]; |
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return qout; |
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} |
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float CaloAxis::GetChi2(){ |
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float chi2=0; |
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int nchi=0; |
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for(Int_t i=0; i<(int)(y.size()); i++){ |
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chi2 += w[i]*w[i]*(y[i]-par[0]-par[1]*x[i])*(y[i]-par[0]-par[1]*x[i]); |
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nchi += (int)w[i]; |
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}; |
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if(nchi<3)return -999; |
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chi2=chi2/(nchi-2); |
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return chi2; |
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} |
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/** |
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* Return the total signal of the hits included to evaluate the axis |
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*/ |
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float CaloAxis::GetQaxis(){ |
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float qaxis=0; |
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for(Int_t i=0; i<(int)(q.size()); i++) qaxis +=q[i]; |
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return qaxis; |
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} |
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/** |
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* Signal of the hits included to evaluate the axis, |
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* within a distance toll from the axis |
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*/ |
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float CaloAxis::GetQaxis(float toll){ |
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float qaxis=0; |
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for(int ih=0;ih<cevent->GetN(); ih++){ |
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float x = cevent->xycoord[ih]; |
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float z = cevent->zcoord[ih]; |
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float q = cevent->q[ih]; |
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// int ip = cevent->idp[ih]; |
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float d = fabs(x-par[0]-par[1]*z)/sqrt(par[1]*par[1]+1); |
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if( d < toll )qaxis+=q; |
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} |
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return qaxis; |
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} |
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/** |
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* Average signal per strip |
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*/ |
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float CaloAxis::GetQstrip(){ |
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float qaxis=0; |
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for(Int_t i=0; i<(int)(q.size()); i++) qaxis +=q[i]; |
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if(q.size()==0) return 0.; |
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return qaxis/q.size(); |
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} |
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/** |
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* Coordinate of the last hit included in the axis |
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*/ |
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float CaloAxis::GetXmin(){ |
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float zmin=9999; |
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for(Int_t i=0; i<(int)(x.size()); i++) if(x[i]<zmin) zmin = x[i]; |
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return zmin; |
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} |
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/** |
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* Coordinate of the first hit included in the axis |
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*/ |
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float CaloAxis::GetXmax(){ |
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float zmax=-9999; |
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for(Int_t i=0; i<(int)(x.size()); i++) if(x[i]>zmax) zmax = x[i]; |
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return zmax; |
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} |
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/** |
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* Draw the axis (in PAMELA reference plane) |
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*/ |
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void CaloAxis::Draw(int col){ |
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// cout << " CaloAxis::Draw()"<<endl; |
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if(GetN()<3)return; |
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sel = new TPolyMarker(GetN(),GetY(),GetX()); |
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sel->SetMarkerSize(0.4); |
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sel->SetMarkerColor(col); |
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axis = new TLine( par[0]+GetXmin()*par[1], GetXmin(), par[0]+GetXmax()*par[1], GetXmax() ); |
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axis->SetLineWidth(1); |
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axis->SetLineColor(col); |
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// cout << sel << endl; |
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// cout << axis << endl; |
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sel->Draw(); |
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axis->Draw(); |
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}; |
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/** |
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* Fit an axis through the calorimeter pattern. |
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* NB!! This method is optimized for non-interacting particles. |
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*/ |
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int CaloAxis::FitAxis( CaloLevel1* calo , Int_t view , Float_t toll , Bool_t usemechanicalalignement ){ |
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// cout << "CaloAxis::FitAxis(...)"<<endl; |
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Set(calo,view,usemechanicalalignement); |
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// ------------------------------ |
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// first : all hits included, w=1 |
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// ------------------------------ |
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for(int ih=0;ih<cevent->GetN(); ih++){ |
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float x = cevent->xycoord[ih]; |
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float z = cevent->zcoord[ih]; |
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float q = cevent->q[ih]; |
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Add(z,x,q); |
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} |
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if(GetN()<3)return 0; |
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Fit(); |
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// cout << " n. hits :"<<GetN()<<endl; |
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// cout << " P0 P1 :"<<par[0]<< " "<<par[1]<<endl; |
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// cout << " Chi2 :"<<GetChi2()<<endl; |
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// cout << " Q axis :"<<GetQaxis()<<endl; |
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// cout << " Q strip :"<<GetQstrip()<<endl; |
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float P0; |
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float P1; |
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int dof; |
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// --------------------------- |
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// second : iteration |
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// --------------------------- |
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int niter=0; // number of iterations |
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int pok[22]; |
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// prova |
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// pesi lineari |
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float W22=1.; |
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float W1=10.; |
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float b=(W22-W1)/(22.-1.);// (w22 - w1)/(22-1) |
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float a=W1-b; |
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for(int i=0; i<22; i++)pok[i]=0; |
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do{ |
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niter++; |
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float ttoll = toll; //tolerance (cm) |
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if(niter==1)ttoll = 10.*toll; |
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dof = GetN(); //previous fit |
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P0 = par[0]; |
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P1 = par[1]; |
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Reset(); //fit reset |
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for(int ih=0;ih<cevent->GetN(); ih++){ |
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float x = cevent->xycoord[ih]; |
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float z = cevent->zcoord[ih]; |
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float q = cevent->q[ih]; |
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int ip = cevent->idp[ih]; |
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float d = fabs(x-P0-P1*z)/sqrt(P1*P1+1); |
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// cout<<d<<endl; |
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if( d < ttoll && (niter==1 || (niter>1 && pok[ip]==1)) ){ |
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// if( d < ttoll ){ |
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float W=a+b*(ip+1); |
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// cout << ip << " "<<W<<endl; |
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Add(z,x,q,W); |
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pok[ip]=1; |
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} |
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} |
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// break the track if more than 3 planes are missing |
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int nmissing = 0; |
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for(int ip=0; ip<22; ip++){ |
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if(pok[ip]==0){ |
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nmissing++; |
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}else{ |
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nmissing = 0; |
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} |
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if(nmissing==3){ |
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for(int ipp=ip+1; ipp<22; ipp++)pok[ipp]=0; |
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break; |
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} |
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} |
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if(niter==100)break; |
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if(GetN()<3)break; |
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Fit(); |
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}while(niter==1 || GetN() != dof); |
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// cout << " >>> "<<GetN()<<endl; |
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if(GetN()<3)return 0; |
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Fit(); |
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// cout << " n. hits :"<<GetN()<<endl; |
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// cout << " P0 P1 :"<<par[0]<< " "<<par[1]<<endl; |
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// cout << " Chi2 :"<<GetChi2()<<endl; |
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// cout << " Q axis :"<<GetQaxis()<<endl; |
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// cout << " Q strip :"<<GetQstrip()<<endl; |
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// --------------------------------------------- |
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// third : selecting only closest strip-clusters |
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// and fit baricenters |
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// --------------------------------------------- |
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P0 = par[0]; |
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P1 = par[1]; |
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Reset(); |
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float dmin[22]; |
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int closest[22]; |
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for(int ip=0; ip<22; ip++){ |
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dmin[ip]=999; |
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closest[ip]=-1; |
| 380 |
|
|
} |
| 381 |
|
|
for(int ih=0;ih<cevent->GetN(); ih++){ |
| 382 |
|
|
float x = cevent->xycoord[ih]; |
| 383 |
|
|
float z = cevent->zcoord[ih]; |
| 384 |
|
|
// float q = cevent->q[ih]; |
| 385 |
|
|
int ip = cevent->idp[ih]; |
| 386 |
|
|
// int is = cevent->ids[ih]; |
| 387 |
|
|
float d = fabs(x-P0-P1*z)/sqrt(P1*P1+1); |
| 388 |
|
|
if( d < toll && d<dmin[ip] && pok[ip]==1 ){ |
| 389 |
|
|
// Add(z,x,q,q); |
| 390 |
|
|
closest[ip]=ih; |
| 391 |
|
|
// cog[ip] += x*q; |
| 392 |
|
|
// qpl[ip] += q; |
| 393 |
|
|
} |
| 394 |
|
|
} |
| 395 |
|
|
for(Int_t ip=0; ip<22; ip++){ |
| 396 |
|
|
if(closest[ip]!=-1){ |
| 397 |
|
|
float x = cevent->xycoord[closest[ip]]; |
| 398 |
|
|
float z = cevent->zcoord[closest[ip]]; |
| 399 |
|
|
float q = cevent->q[closest[ip]]; |
| 400 |
|
|
// int is = cevent->ids[closest[ip]]; |
| 401 |
|
|
Add(z,x,q,q); |
| 402 |
|
|
cog[ip] += x*q; |
| 403 |
|
|
qpl[ip] += q; |
| 404 |
|
|
// cout << ip << " -o- "<<is<<endl; |
| 405 |
|
|
} |
| 406 |
|
|
} |
| 407 |
|
|
// add +/- one strip |
| 408 |
|
|
for(int ih=0;ih<cevent->GetN(); ih++){ |
| 409 |
|
|
float x = cevent->xycoord[ih]; |
| 410 |
|
|
float z = cevent->zcoord[ih]; |
| 411 |
|
|
float q = cevent->q[ih]; |
| 412 |
|
|
int ip = cevent->idp[ih]; |
| 413 |
|
|
int is = cevent->ids[ih]; |
| 414 |
|
|
if( closest[ip]!=-1 ){ |
| 415 |
|
|
int isc = cevent->ids[closest[ip]]; |
| 416 |
|
|
if( is == isc+1 || is == isc-1 ){ |
| 417 |
|
|
Add(z,x,q,q); |
| 418 |
|
|
cog[ip] += x*q; |
| 419 |
|
|
qpl[ip] += q; |
| 420 |
|
|
// cout << ip << " -+- "<<is<<endl; |
| 421 |
|
|
} |
| 422 |
|
|
} |
| 423 |
|
|
} |
| 424 |
|
|
Fit(); |
| 425 |
|
|
|
| 426 |
|
|
if(GetN()<3)return 0; |
| 427 |
|
|
for(int ip=0; ip<22; ip++){ |
| 428 |
|
|
if(qpl[ip]!=0){ |
| 429 |
|
|
cog[ip]=cog[ip]/qpl[ip]; |
| 430 |
|
|
// Add(z,cog[ip],cog[ip],0.7); |
| 431 |
|
|
} |
| 432 |
|
|
} |
| 433 |
|
|
|
| 434 |
|
|
// cout << " n. hits :"<<GetN()<<endl; |
| 435 |
|
|
// cout << " P0 P1 :"<<par[0]<< " "<<par[1]<<endl; |
| 436 |
|
|
// cout << " Chi2 :"<<GetChi2()<<endl; |
| 437 |
|
|
// cout << " Q axis :"<<GetQaxis()<<endl; |
| 438 |
|
|
// cout << " Q strip :"<<GetQstrip()<<endl; |
| 439 |
|
|
// cout << " ---------------------------"<<endl; |
| 440 |
|
|
return 1; |
| 441 |
|
|
}; |
| 442 |
|
|
|
| 443 |
|
|
/** |
| 444 |
|
|
* Fit an axis through the calorimeter pattern. |
| 445 |
|
|
* NB!! This method is optimized for non-interacting particles. |
| 446 |
|
|
*/ |
| 447 |
|
|
|
| 448 |
|
|
int CaloAxis::FitShower( CaloLevel1* calo , Int_t view , Float_t toll , Bool_t usemechanicalalignement ){ |
| 449 |
|
|
|
| 450 |
|
|
// cout << "CaloAxis::FitAxis(...)"<<endl; |
| 451 |
|
|
|
| 452 |
|
|
Set(calo,view,usemechanicalalignement); |
| 453 |
|
|
|
| 454 |
|
|
// ------------------------------ |
| 455 |
|
|
// first : |
| 456 |
|
|
// ------------------------------ |
| 457 |
|
|
for(int ih=0;ih<cevent->GetN(); ih++){ |
| 458 |
|
|
float x = cevent->xycoord[ih]; |
| 459 |
|
|
// float z = cevent->zcoord[ih]; |
| 460 |
|
|
float q = cevent->q[ih]; |
| 461 |
|
|
int ip = cevent->idp[ih]; |
| 462 |
|
|
cog[ip] += x*q; |
| 463 |
|
|
qpl[ip] += q; |
| 464 |
|
|
// Add(z,x,q); |
| 465 |
|
|
} |
| 466 |
|
|
for(int ip=0; ip<22; ip++){ |
| 467 |
|
|
if(qpl[ip]!=0)cog[ip]=cog[ip]/qpl[ip]; |
| 468 |
|
|
// cout << ip << " > "<<qpl[ip]<<" "<<cog[ip]<<endl; |
| 469 |
|
|
} |
| 470 |
|
|
// ---------------- |
| 471 |
|
|
// plane of maximum |
| 472 |
|
|
// ---------------- |
| 473 |
|
|
float qplmax=1; |
| 474 |
|
|
int ipmax = -1; |
| 475 |
|
|
float dmin[22]; |
| 476 |
|
|
int closest[22]; |
| 477 |
|
|
for(int ip=0; ip<22; ip++)if(qpl[ip]>qplmax){ |
| 478 |
|
|
ipmax=ip; |
| 479 |
|
|
qplmax=qpl[ip]; |
| 480 |
|
|
dmin[ip]=1000.;//init |
| 481 |
|
|
closest[ip]=-1;//init |
| 482 |
|
|
} |
| 483 |
|
|
for(int ih=0;ih<cevent->GetN(); ih++){ |
| 484 |
|
|
float x = cevent->xycoord[ih]; |
| 485 |
|
|
float z = cevent->zcoord[ih]; |
| 486 |
|
|
float q = cevent->q[ih]; |
| 487 |
|
|
int ip = cevent->idp[ih]; |
| 488 |
|
|
// if( (ipmax>3 && ip<=ipmax) || ipmax<=3 )Add(z,x,q); |
| 489 |
|
|
if( ip<=ipmax || ip<=3 ){ |
| 490 |
|
|
Add(z,x,q); |
| 491 |
|
|
} |
| 492 |
|
|
} |
| 493 |
|
|
if(GetN()<3)return 0; |
| 494 |
|
|
Fit(); |
| 495 |
|
|
// cout << " n. hits :"<<GetN()<<endl; |
| 496 |
|
|
// cout << " P0 P1 :"<<par[0]<< " "<<par[1]<<endl; |
| 497 |
|
|
// cout << " Chi2 :"<<GetChi2()<<endl; |
| 498 |
|
|
// cout << " Q axis :"<<GetQaxis()<<endl; |
| 499 |
|
|
// cout << " Q strip :"<<GetQstrip()<<endl; |
| 500 |
|
|
|
| 501 |
|
|
float P0; |
| 502 |
|
|
float P1; |
| 503 |
|
|
int dof; |
| 504 |
|
|
|
| 505 |
|
|
// --------------------------- |
| 506 |
|
|
// second : iteration |
| 507 |
|
|
// --------------------------- |
| 508 |
|
|
int niter=0; // number of iterations |
| 509 |
|
|
int pok[22]; |
| 510 |
|
|
// prova |
| 511 |
|
|
// pesi lineari |
| 512 |
|
|
float W22=1.; |
| 513 |
|
|
float W1=10.; |
| 514 |
|
|
float b=(W22-W1)/(22.-1.);// (w22 - w1)/(22-1) |
| 515 |
|
|
float a=W1-b; |
| 516 |
|
|
|
| 517 |
|
|
for(int i=0; i<22; i++){ |
| 518 |
|
|
pok[i]=0; |
| 519 |
|
|
cog[i]=0; |
| 520 |
|
|
qpl[i]=0; |
| 521 |
|
|
} |
| 522 |
|
|
do{ |
| 523 |
|
|
niter++; |
| 524 |
|
|
float ttoll = toll; //tolerance (cm) |
| 525 |
|
|
if(niter==1)ttoll = 10.*toll; |
| 526 |
|
|
dof = GetN(); //previous fit |
| 527 |
|
|
P0 = par[0]; |
| 528 |
|
|
P1 = par[1]; |
| 529 |
|
|
Reset(); //fit reset |
| 530 |
|
|
for(int i=0; i<22; i++){ |
| 531 |
|
|
cog[i]=0; |
| 532 |
|
|
qpl[i]=0; |
| 533 |
|
|
} |
| 534 |
|
|
for(int ih=0;ih<cevent->GetN(); ih++){ |
| 535 |
|
|
float x = cevent->xycoord[ih]; |
| 536 |
|
|
float z = cevent->zcoord[ih]; |
| 537 |
|
|
float q = cevent->q[ih]; |
| 538 |
|
|
int ip = cevent->idp[ih]; |
| 539 |
|
|
float d = fabs(x-P0-P1*z)/sqrt(P1*P1+1); |
| 540 |
|
|
// cout<<d<<endl; |
| 541 |
|
|
if( |
| 542 |
|
|
(niter==1 || (niter>1 && pok[ip]==1)) && |
| 543 |
|
|
// (ip<=ipmax || ip<=3) && |
| 544 |
|
|
(ip<ipmax || ip<=3) && |
| 545 |
|
|
// ((ipmax>3 && ip<=ipmax) || ipmax<=3) && |
| 546 |
|
|
true){ |
| 547 |
|
|
|
| 548 |
|
|
if(niter==1 && d<dmin[ip]){ |
| 549 |
|
|
dmin[ip]=d; |
| 550 |
|
|
closest[ip]=ih; |
| 551 |
|
|
} |
| 552 |
|
|
|
| 553 |
|
|
float W=a+b*(ip+1); |
| 554 |
|
|
// cout << ip << " "<<W<<endl; |
| 555 |
|
|
if( d < ttoll || ( niter==2 && ih==closest[ip] )){ |
| 556 |
|
|
/* if(ip==ipmax && ipmax>1)Add(z,x,q,W*q); */ |
| 557 |
|
|
/* else Add(z,x,q,W); */ |
| 558 |
|
|
cog[ip] += x*q; |
| 559 |
|
|
qpl[ip] += q; |
| 560 |
|
|
Add(z,x,q,W); |
| 561 |
|
|
pok[ip]=1; |
| 562 |
|
|
} |
| 563 |
|
|
} |
| 564 |
|
|
} |
| 565 |
|
|
// break the track if more than 3 planes are missing |
| 566 |
|
|
int nmissing = 0; |
| 567 |
|
|
for(int ip=0; ip<22; ip++){ |
| 568 |
|
|
if(pok[ip]==0){ |
| 569 |
|
|
nmissing++; |
| 570 |
|
|
}else{ |
| 571 |
|
|
nmissing = 0; |
| 572 |
|
|
} |
| 573 |
|
|
if(nmissing==6){ |
| 574 |
|
|
for(int ipp=ip+1; ipp<22; ipp++)pok[ipp]=0; |
| 575 |
|
|
break; |
| 576 |
|
|
} |
| 577 |
|
|
} |
| 578 |
|
|
|
| 579 |
|
|
for(int ip=0; ip<22; ip++)if(qpl[ip]!=0)cog[ip]=cog[ip]/qpl[ip]; |
| 580 |
|
|
|
| 581 |
|
|
if(niter==100)break; |
| 582 |
|
|
if(GetN()<3)break; |
| 583 |
|
|
|
| 584 |
|
|
Fit(); |
| 585 |
|
|
|
| 586 |
|
|
}while(niter==1 || GetN() != dof); |
| 587 |
|
|
// cout << " >>> "<<GetN()<<endl; |
| 588 |
|
|
if(GetN()<3)return 0; |
| 589 |
|
|
Fit(); |
| 590 |
|
|
|
| 591 |
|
|
// cout << " n. hits :"<<GetN()<<endl; |
| 592 |
|
|
// cout << " P0 P1 :"<<par[0]<< " "<<par[1]<<endl; |
| 593 |
|
|
// cout << " Chi2 :"<<GetChi2()<<endl; |
| 594 |
|
|
// cout << " Q axis :"<<GetQaxis()<<endl; |
| 595 |
|
|
// cout << " Q strip :"<<GetQstrip()<<endl; |
| 596 |
|
|
// cout << " ---------------------------"<<endl; |
| 597 |
|
|
return 1; |
| 598 |
|
|
}; |
| 599 |
|
|
|
| 600 |
|
|
ClassImp(CaloEvent); |
| 601 |
|
|
ClassImp(CaloAxis); |
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