From 594eefc890d1f890d0f9b5279eb70a8df2b79b86 Mon Sep 17 00:00:00 2001
From: loizides <loizides@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Sat, 18 May 2002 12:10:51 +0000
Subject: [PATCH] First checkin of program to extract parameters from
 AliL3Transform to be used for the VHDL implementation of the Hough transform.

---
 HLT/programs/gettransform.cxx | 267 ++++++++++++++++++++++++++++++++++
 1 file changed, 267 insertions(+)
 create mode 100644 HLT/programs/gettransform.cxx

diff --git a/HLT/programs/gettransform.cxx b/HLT/programs/gettransform.cxx
new file mode 100644
index 00000000000..ee78941ede3
--- /dev/null
+++ b/HLT/programs/gettransform.cxx
@@ -0,0 +1,267 @@
+//#define DOTESTS /* undefine this for getting the parameters */
+
+#ifdef DOTESTS
+#define use_root
+#endif
+
+#include <stream.h>
+#include <libgen.h>
+#include <math.h>
+#include <AliL3RootTypes.h>
+#include <AliL3Defs.h>
+#include <AliL3Transform.h>
+#include <AliL3Logging.h>
+#include <AliL3Logger.h>
+#include <AliL3MemHandler.h>
+
+#ifdef use_root
+#include <TApplication.h>
+#include <TCanvas.h>
+#include <TPad.h>
+#include <TH1.h>
+#include <TMath.h>
+#endif
+
+/*
+  This program extracts parameters and lookup tables needed for the
+  vhdl implementation of the Hough transform. 
+ */
+
+int main(int argc,char **argv)
+{
+  Int_t patch=0;
+  Int_t slice=0;
+  Char_t path[1000];
+  //cout<<"Usage: transform [slice] [patch] [path]"<<endl;
+    
+  if (argc>1) {
+    slice=atoi(argv[1]);
+  }
+  if (argc>2) {
+    patch=atoi(argv[2]);
+  }  if (argc>3) {
+    strcpy(path,argv[3]);
+  } else strcpy(path,"/tmp/data/RawData/slice0");
+
+  AliL3Logger l;
+  l.UseStdout();
+  //l.UseStream();
+
+  AliL3Transform::Init(path);
+  //cout << "Transform version: " << AliL3Transform::GetVersion() << endl;
+
+  Int_t npads=0;
+  Int_t sector=0;
+  Int_t sector_row=0;
+
+  Float_t Xt[200];
+  Float_t Yt[200];
+
+  Float_t xbins[126];
+  for(int t=0;t<126;t++){
+    Float_t eta=exp(2.*1./125*t);
+    xbins[t]=(eta-1)/(1+eta);
+    //cout << eta << " " << xbins[t] << endl;
+  }
+
+#ifdef DOTESTS /* do some tests in root histos */
+#ifdef use_root
+  TApplication theApp("App", &argc, argv);
+  
+  TCanvas *c = new TCanvas("c", "The Histogram Canvas", 800, 800);
+  TPad *pad1 = new TPad("pad1","Pad for Eta",0.05,0.50,0.95,0.95,21);
+  TPad *pad2 = new TPad("pad2","Pad for Tests",0.05,0.05,0.95,0.45,21);
+  //  TH1F *h1f = new TH1F("h1f","Eta Distribution",125,0,1.);
+  TH1F *h1f = new TH1F("h1f","Test Error",100,90,110);
+  TH1F *h2f = new TH1F("h2f","Test Distribution",1000,0,10);
+  //  TH1F *h2f = new TH1F("h2f","Test Distribution",125,xbins);
+  pad1->Draw();
+  pad2->Draw();
+  pad1->cd();
+#endif
+
+  Int_t ntime=AliL3Transform::GetNTimeBins();
+  Float_t xyz[3]={0,0,0};
+  Float_t rpe[3]={0,0,0};
+  int rebinned=0;
+  for(Int_t rr=NRows[patch][0];rr<=NRows[patch][1];rr++){
+    npads=AliL3Transform::GetNPads(rr);
+    AliL3Transform::Slice2Sector(slice,rr,sector,sector_row);
+    for(Int_t pp=0;pp<npads;pp++){
+      for (Int_t tt=0;tt<ntime;tt++){
+	AliL3Transform::Raw2Local(xyz,sector,sector_row,pp,tt);
+	AliL3Transform::XYZtoRPhiEta(rpe,xyz);
+#ifdef use_root
+	if(!rebinned) {
+	  h2f->SetBins(500,0,252.*252/xyz[0]/xyz[0]);
+	  rebinned=1;
+	}
+	//h1f->Fill(rpe[2]);
+	//h2f->Fill(xyz[2]/rpe[0]);
+	Float_t A2=xyz[2]*xyz[2]/(xyz[0]*xyz[0]+xyz[1]*xyz[1]);
+	Float_t Sroot=1./TMath::Sqrt(1.+A2);
+	Int_t bin=h2f->FindBin(A2);
+	Double_t binCenter = h2f->GetBinCenter(bin);
+	Double_t binCenterval = 1./TMath::Sqrt(1.+binCenter);
+	Float_t err=(Sroot*100./binCenterval);
+	h1f->Fill(err);
+	h2f->Fill(A2);
+	//printf("%.3f %.3f %.3f\n",Sroot,binCenter,err);
+#endif
+	//printf("%d %d %d %f %f %f %f %f %f\n",rr,pp,tt,xyz[0],xyz[1],xyz[2],rpe[0],rpe[1],rpe[2]);
+      }
+    }
+  }
+#else /* do the extraction of the parameters */
+  AliL3Transform::Slice2Sector(slice,NRows[patch][0],sector,sector_row);
+
+  Float_t ytabval=0;
+  Int_t maxrow=NRows[patch][1]-NRows[patch][0];
+  Float_t padpitch=0;
+  if(sector<AliL3Transform::GetNSectorLow())
+    padpitch=AliL3Transform::GetPadPitchWidthLow();
+  else
+    padpitch=AliL3Transform::GetPadPitchWidthUp();  
+
+  printf("MinRow: %d\nMaxRow: %d\n",0,maxrow);
+  printf("YPadWidth: %.2f\n",padpitch);
+  printf("ZSign: %d\n",slice < 18 ? 1:-1);
+  printf("ZWidth: %.2f\n",AliL3Transform::GetZWidth());
+  printf("TimeWidth: %.2f\n\n",AliL3Transform::GetZWidth());
+
+  //calculating lookup tables for slice and patch!
+  for(Int_t rr=NRows[patch][0];rr<=NRows[patch][1];rr++){
+    npads=AliL3Transform::GetNPads(rr);
+    
+    //Y(row,pad)=pad*padpitch-ytabval(row);
+    ytabval=0.5*(npads-1)*padpitch;
+
+    Xt[rr-NRows[patch][0]]=AliL3Transform::Row2X(rr);
+    Yt[rr-NRows[patch][0]]=ytabval;
+    //row in patch: X(row) Y_part(row)
+    printf("Row: %d X: %.2f Y: %.2f\n",rr-NRows[patch][0],AliL3Transform::Row2X(rr),ytabval);
+  }
+  printf("\n\nVHDL-Output for LUT:\nX_table := (");
+  for(int i=0;i<maxrow-1;i++){
+    printf("%.2f, ",Xt[i]);
+  }
+  printf("%.2f);\n",Xt[maxrow-1]);
+  printf("Y_table := (");
+  for(int i=0;i<maxrow-1;i++){
+    printf("%.2f, ",Yt[i]);
+  }
+  printf("%.2f);\n",Yt[maxrow-1]);
+#endif
+
+#ifdef DOTESTS 
+#ifdef use_root
+  h1f->Draw();
+  pad2->cd();
+  h2f->Draw();
+  c->Update();
+
+  theApp.Run();
+#endif
+#endif
+
+  exit(0);
+}
+  
+//#############################################################
+
+#if 0
+  AliL3MemHandler file; //Does all the file/data handling
+
+  //Open the data file:
+  if(!file.SetBinaryInput(digitfile))
+    {
+      cerr<<"Error opening file "<< digitfile <<endl;
+      return -1;
+    }
+  
+  //Store the data in memory, and get the pointer to it:
+  unsigned int ndigits=0;
+  AliL3DigitRowData *digits=0;
+  digits=(AliL3DigitRowData*)file.CompBinary2Memory(ndigits);
+  file.CloseBinaryInput();
+  
+  /*  
+  for(Int_t r=0; r<31; r++) {
+    UInt_t padrow=digits->fRow;
+    AliL3DigitData *dPt = (AliL3DigitData*)digits->fDigitData;
+    cout<<"padrow "<<padrow<<" ndigits "<<digits->fNDigit<<endl;
+	  
+    for(Int_t d=0; d<digits->fNDigit; d++) {
+      cout<<" padrow "<<padrow<<" pad "<<(int)dPt[d]->fPad<<" time " <<(int)dPt[d]->fTime<<" charge "<<(int)dPt[d]->fCharge<<endl;
+    }
+    file->UpdateRowPointer(digits);
+  }
+  return 100;
+  */
+    
+  digits=(AliL3DigitRowData*)file->GetDataPointer(ndigits);
+  AliL3Transform transform; //Storing all detector-spesific quantities, needed by the clusterfinder.
+  AliL3ClustFinderNew cf(&transform); //The cluster finder itself.
+
+  //Switch off deconvolution:
+  cf.SetDeconv(false);
+  cf.SetXYError(0.2);
+  cf.SetZError(0.3);
+
+  //Init cluster finder
+  cf.InitSlice(0,0,0,20,10000);
+  
+  //Give the data pointer to the cluster finder
+  cf.Read(ndigits,digits);
+  cout << digits << endl;
+  //Start processing:
+  cf.ProcessDigits();
+  
+/* 
+ int slice=1;
+  a = new AliL3Hough(digitfile,kTRUE,n_eta_segments);
+  
+  a->ReadData(slice);
+  
+  a->Transform();
+  a->AddAllHistograms();
+    
+  c1 = new TCanvas("c1","",2);
+  a->GetTransformer(0)->GetHistogram(0)->Draw("box");
+  
+  
+  a->FindTrackCandidates();
+  //a->Evaluate(2);
+ */ 
+  /*
+  //Display the track:
+  dhist = new AliL3Histogram("dhist","",250,0,250,250,-125,125);
+  for(int i=0; i<6; i++)
+    a->GetEval(i)->DisplayEtaSlice(0,dhist);
+  c2 = new TCanvas("c2","",2);
+  dhist->Draw();
+  */
+  
+  //a->WriteTracks();//"../compression/");
+    
+/*
+  tracks = (AliL3TrackArray*)a->GetTracks(0);
+   
+  float xyz[3];
+  int row=0;
+  cout<<"Found "<<tracks->GetNTracks()<<" tracks"<<endl;
+  for(int i=0; i<tracks->GetNTracks(); i++)
+    {
+      AliL3HoughTrack *track = (AliL3HoughTrack*)tracks->GetCheckedTrack(i);
+      if(!track) continue;
+      //track->GetCrossingPoint(row,xyz);
+      //transform->Local2Raw(xyz,1,row);
+      //cout<<"Recon. pad "<<(int)xyz[1]<<" time "<<(int)xyz[2]<<endl;
+      cout<<"Pt "<<track->GetPt()<<" phi "<<track->GetPhi0()<<" charge "<<track->GetCharge()<<" weigth "<<track->GetWeight()<<endl;
+    }
+*/
+  
+  return;
+}
+
+#endif  
-- 
2.39.3