-void hough_line_merge(char *rootfile,int patch,Bool_t MC=false)
-{
- gStyle->SetOptStat(0);
-
-
- Double_t pi = TMath::Pi();
- Int_t xbin = 60;
- Int_t ybin = 60;
- Float_t xrange[2] = {-pi/2,pi/2};
- Float_t yrange[2] = {-40,40};
-
- TH2F *hist;
-
- Int_t xr[2] = {0,250};
- Int_t yr[2] = {-125,125};
- TH1F *ntracks = new TH1F("ntracks","",100,0,200);
- TH2F *raw = new TH2F("raw","",250,xr[0],xr[1],250,yr[0],yr[1]);
- TH2F *road = new TH2F("road","",250,0,250,250,yr[0],yr[1]);
- TH2F *fake = new TH2F("fake","",250,0,250,250,-125,125);
- TH2F *peaks = new TH2F("peaks","",xbin,xrange[0],xrange[1],ybin,yrange[0],yrange[1]);
- peaks->SetMarkerStyle(3);
- peaks->SetMarkerColor(2);
-
- int slice = 2,n_phi_segments=20;
- float eta[2] = {0.3,0.4};
- //float eta[2] = {0.05,0.06};
-
- AliL3HoughTransformer *a = new AliL3HoughTransformer(slice,patch,eta,n_phi_segments);
- a->GetPixels(rootfile,raw);
-
- AliL3HoughMaxFinder *b = new AliL3HoughMaxFinder("DPsi");
-
- const Int_t NRows[5][2] = {{ 0, 45},{46,77},{78,109},{110,141},{142,173}};
- //const int ref_row[4]={5,15,25,35};
- //int rowrange[4][2]={{0,10},{10,20},{20,30},{30,45}};
- int ref_row[7] = {3,9,15,21,27,33,39};
- int rowrange[7][2] = {{0,6},{6,12},{12,18},{18,24},{24,30},{30,36},{36,42}};
-
- double phirange[7][2] = {{-10.,-5.},{-7.5,-2.5},{-5.,0.},{-2.5,2.5},{0.,5.},{2.5,7.5},{5.,10.}};
- int npatches = 7;
- int count=0;
-
- //AliL3TrackArray **track_pieces = new AliL3TrackArray*[npatches];
- AliL3TrackArray *track_pieces = new AliL3TrackArray("AliL3HoughTrack");
-
- double pran[2] = {-10,10};
-
- // int pa=3;
- for(int row_pat=0; row_pat < 7; row_pat++)
- {
-
- for(int pat=0; pat<7; pat++)
- {
-
- TH2F *histo = new TH2F("histo","Parameter space",xbin,xrange[0],xrange[1],ybin,yrange[0],yrange[1]);
-
- printf("transforming ref_row %d rowrange %d %d phirange %f %f\n",ref_row[row_pat],rowrange[row_pat][0],rowrange[row_pat][1],phirange[pat][0],phirange[pat][1]);
-
- a->Transform2Line(histo,ref_row[row_pat],rowrange[row_pat],phirange[pat]);
- //a->Transform2Line(histo,ref_row[row_pat],rowrange[row_pat],pran);
-
- AliL3TrackArray *tmp = (AliL3TrackArray*)b->FindMaxima(histo,rowrange[row_pat],ref_row[row_pat]);
-
- track_pieces->AddTracks(tmp);
-
- //AliL3HoughTrack *tra = (AliL3HoughTrack*)b->GetTracks()->GetCheckedTrack(0);
- //printf("psi %f rowrange %d %d\n",tra->GetPsiLine(),tra->GetFirstRow(),tra->GetLastRow());
-
- delete histo;
- delete tmp;
- }
-
- }
-
-
- printf("Transformation complete, genereted %d tracks\n",track_pieces->GetNTracks());
-
-
- //track_pieces->Sort();
- TH2F *cross = new TH2F("cross","",250,xr[0],xr[1],250,yr[0],yr[1]);
- Double_t xy[2];
- //for(int i=0; i<npatches; i++)
- for(int i=0; i<4; i++)
- {
- if(track_pieces->GetNTracks()==0) continue;
- AliL3HoughTrack *track = (AliL3HoughTrack*)track_pieces->GetCheckedTrack(i);
- if(!track) {printf("NO TRACK\n"); continue;}
- //for(int j=rowrange[pa][0]; j<=rowrange[pa][1]; j++)
- /*
- for(int j=0; j<174; j++)
- {
- track->GetLineCrossingPoint(j,xy);
- cross->Fill(xy[0],xy[1],1);
- }
- */
- //printf("weight %d psi %f D %f rowrange %d %d\n",track->GetWeight(),track->GetPsiLine(),track->GetDLine(),track->GetFirstRow(),track->GetLastRow());
-
- }
- cross->SetMarkerStyle(6);
- cross->SetMarkerColor(2);
- //cross->Draw();
-
-
-
- AliL3HoughTransformer *a2 = new AliL3HoughTransformer(slice,pat,eta,n_phi_segments);
-
- xbin = 60 ;
- ybin = 60;
- xrange[0] = -0.006;
- xrange[1] = 0.006;
- yrange[0] = -0.26;
- yrange[1] = 0.26;
- hist = new TH2F("hist","Parameter space",xbin,xrange[0],xrange[1],ybin,yrange[0],yrange[1]);
-
- TH2F *cross_helix = new TH2F("cross_helix","",250,xr[0],xr[1],250,yr[0],yr[1]);
-
- a2->TransformLines2Circle(hist,(AliL3TrackArray*)track_pieces);
-
- AliL3HoughMaxFinder *b2 = new AliL3HoughMaxFinder("KappaPhi");
- AliL3TrackArray *final_tracks = b2->FindMaxima(hist);
-
- printf("Number of track candidates before checking %d\n",final_tracks->GetNTracks());
- AliL3HoughEval *eval = new AliL3HoughEval(slice);
- eval->SetTransformer(a);
- eval->LookInsideRoad(final_tracks);
-
- printf("Total number of tracks after checking %d\n",final_tracks->GetNTracks());
- for(int i=0; i<3; i++)//final_tracks->GetNTracks(); i++)
- {
-
- AliL3HoughTrack *track = (AliL3HoughTrack*)final_tracks->GetCheckedTrack(i);
- if(!track) continue;
-
- for(int r=0; r<174; r++)
- {
- Float_t xyz_helix[3];
- track->GetCrossingPoint(r,xyz_helix);
- cross_helix->Fill(xyz_helix[0],xyz_helix[1],1);
- }
-
- peaks->Fill(track->GetKappa(),track->GetPhi0(),1);
- printf("Found track, pt %f phi0 %f\n",track->GetPt(),track->GetPhi0());
- }
- cross_helix->SetMarkerStyle(6);
- cross_helix->SetMarkerColor(2);
- TCanvas *c1 = new TCanvas("c1","",900,900);
- SetCanvasOptions(c1);
- c1->Divide(2,2);
- c1->cd(1);
- hist->Draw("box");
-
- peaks->SetMarkerStyle(3);
- peaks->SetMarkerColor(2);
- //peaks->Draw("same");
-
- c1->cd(2);
- cross_helix->Draw();
-
- c1->cd(3);
- raw->Draw("");
- cross_helix->DrawCopy("same");
- //cross->Draw("same");
-
- c1->cd(4);
- //hist->Draw("box");
- raw->DrawCopy();
-
- delete track_pieces;
- delete a;
- delete b;
- delete a2;
- delete eval;
- //----------------------------------------------------------------------------
- if(MC)
- {
- TFile *file = new TFile(rootfile);
- file->cd();
-
- gAlice = (AliRun*)file->Get("gAlice");
- gAlice->GetEvent(0);
-
- TClonesArray *particles=gAlice->Particles();
- Int_t n=particles->GetEntriesFast();
- Float_t torad=TMath::Pi()/180;
- Float_t phi_min = slice*20 - 10;
- Float_t phi_max = slice*20 + 10;
-
- for (Int_t j=0; j<n; j++) {
- TParticle *p=(TParticle*)particles->UncheckedAt(j);
- if (p->GetFirstMother()>=0) continue; //secondary particle
- if(p->Eta() < eta[0] || p->Eta() > eta[1]) continue;
- Double_t ptg=p->Pt(),pxg=p->Px(),pyg=p->Py(),pzg=p->Pz();
- Double_t phi_part = TMath::ATan2(pyg,pxg);
- if (phi_part < 0) phi_part += 2*TMath::Pi();
-
- if(phi_part < phi_min*torad || phi_part > phi_max*torad) {continue;}
- if(ptg<0.100) continue;
-
- printf("Generated particle %d, with pt %f phi %f\n",p->GetPdgCode(),ptg,phi_part);
- }
- file->Close();
- delete file;
- }
-
-}