FairRoot/PandaRoot
Macros | Functions
plotTrackCands.C File Reference
#include <math.h>
#include "TString.h"
#include "TROOT.h"
#include "TSystem.h"
#include "TH1.h"
#include "TH2.h"
#include "TCanvas.h"
#include "TLine.h"
#include "TLorentzVector.h"
#include "TStyle.h"
#include "TRandom.h"
#include "TStopwatch.h"
#include "TGraph.h"
#include "TSpectrum2.h"
#include <stdio.h>
#include <iostream>
#include <iomanip>
#include "FairLogger.h"
#include "FairRuntimeDb.h"
#include "FairParRootFileIo.h"
#include "PndFtsHit.h"
#include "FairMCPoint.h"
#include "FairHit.h"
#include "AnalysisTools/PndAnalysis.h"
#include "AnalysisTools/Fitter/Rho4CFitter.h"
#include "AnalysisTools/Fitter/RhoKinVtxFitter.h"
#include "AnalysisTools/Fitter/RhoKinFitter.h"
#include "AnalysisTools/PndAnaPidCombiner.h"
#include "AnalysisTools/PndAnaPidSelector.h"
#include "FairRunSim.h"
#include "PndMultiField.h"
#include "PndMCTrack.h"
#include "PndFtsHoughTrackCand.h"

Go to the source code of this file.

Macros

#define HOUGH_TEST
 

Functions

int PlotMCTracks (int iEvent, TString branchName, TString tcaName, TGraph *mcPoints, TFile *fSim=0)
 
int PlotMCTracksPrintBField (PndMultiField *fField, int iEvent, TString branchName, TString tcaName, TH2D *mcPoints)
 
int plotHoughTrackCand (PndFtsHoughTrackCand *trackCand, TGraph *returnTGraph)
 
Double_t MakeHoughParabolaFitwithBfield (PndMultiField *fField, Double_t pzinv, Double_t theta, Double_t weight, Double_t zOffset, Double_t hitshiftinx, Double_t zscaling, const Double_t c, const Bool_t keepBConstant, TGraph *ParabolaFitInXZPlane)
 
int DrawField (PndMultiField *fField, TH2F *Bfield)
 
int plotTrackCands (int iEvent)
 

Macro Definition Documentation

#define HOUGH_TEST

Definition at line 9 of file plotTrackCands.C.

Function Documentation

int DrawField ( PndMultiField *  fField,
TH2F *  Bfield 
)

Definition at line 493 of file plotTrackCands.C.

References Double_t, CAMath::Sqrt(), verbose, x, and z.

Referenced by plotTrackCands().

494 {
495  int verbose = 0;
496  // For magnetic field access
497  Double_t po[3], BB[3];
498  Double_t Btot = 0.;
499 
500  po[1] = 0.; // set y position to 0 (because FTS currently does not provide a y position
501 
502  for (Double_t z = -199.; z < 800.; z += 2.)
503  {
504  po[2] = z;
505  for (Double_t x = -249.; x < 250.; x += 2.)
506  {
507  // cout << "X = " << x << endl;
508  po[0] = x;
509  fField->GetFieldValue(po, BB); //return value in KG (G3)
510  if (7<verbose)
511  {
512  std::cout << "B_y = " << BB[1]/10. << " T for Z = " << po[2] << " cm X = " << po[0] << " cm" << std::endl;
513  }
514  Btot = TMath::Sqrt(BB[0] * BB[0] + BB[1] * BB[1] + BB[2] * BB[2]);
515  Bfield->Fill(z, x, Btot / 10.); // This plots B_total
516  //Bfield->Fill(z,x,BB[1]/ 10.); // This plots By = y-component of B field
517  }
518  }
519  return 0;
520 }
CAMath::Sqrt
static T Sqrt(const T &x)
Definition: PndCAMath.h:37
verbose
#define verbose
Definition: PndRadMapBoxMesh.cxx:15
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
z
Double_t z
Definition: createRootFscGeometryFile.C:146
x
Double_t x
Definition: createRootFscGeometryFile.C:159
program_options
Double_t MakeHoughParabolaFitwithBfield ( PndMultiField *  fField,
Double_t  pzinv,
Double_t  theta,
Double_t  weight,
Double_t  zOffset,
Double_t  hitshiftinx,
Double_t  zscaling,
const Double_t  c,
const Bool_t  keepBConstant,
TGraph *  ParabolaFitInXZPlane 
)

Definition at line 334 of file plotTrackCands.C.

References a, Double_t, max(), sin(), sqrt(), and verbose.

337 {
338 
339  int verbose = 0;
340  // (zreal=zOffset, xreal=-hitshiftinx) = (zshifted = 0, xshifted = 0)
341  // zshifted = zreal - zOffset
342  // xshifted = xreal + hitshiftinx
343  // zreal = zshifted + zOffset
344  // xreal = xshifted - hitshiftinx
345 
346 
347 
348  // There is a bug for theta == 0
349  // calculate constants
350  // There is a bug for By == 0
351 
352  // 0 == theta is a special case which I did not want to implement. if statement is a workaround
353  if (0 == theta)
354  {
355  theta = 1. / 100.;
356  }
357 
358  const Int_t iterationsForBfield = 10; // 10 should be enough
359 
360  // for B field access
361  Double_t Byminus = 0., Byplus = 0.;
362  Double_t BMeanPlus = 0., BMeanMinus;
363  Double_t po[3], BB[3];
364  Double_t xplusshifted = 0., xminusshifted = 0., lastxminusshifted = 0., lastxplusshifted = 0., lastxminusreal= 0., lastxplusreal = 0., zshifted = 0.;
365  po[1] = 0.; // always use B-field for y == 0
366 
367  const Double_t meinpi = 3.14159265;
368  Double_t realtheta = theta / 360. * 2. * meinpi;
369  const Double_t tantheta = tan(realtheta);
370  const Double_t pzstuff = 1. / pzinv / 2. / c / tantheta / sin(realtheta);
371  const Int_t upperlimit = 500, lowerlimit = -200;
372  const Int_t nPoints = ceil((upperlimit-lowerlimit)/zscaling);
373  Double_t xplusreal[nPoints];
374  Double_t xminusreal[nPoints];
375  Double_t zreal[nPoints];
376  Int_t howManyPointsInBField = 0;
377 
378 
379 
380  if (2<verbose) { std::cout << "hitshiftinx is " << hitshiftinx << std::endl; }
381 
382  for (Int_t indexForArrays = 0, zshifted = lowerlimit; indexForArrays < nPoints; ++indexForArrays, zshifted = zshifted + 1. / zscaling)
383  {
384  // (zreal=zOffset, xreal=-hitshiftinx) = (zshifted = 0, xshifted = 0)
385  // zshifted = zreal - zOffset
386  // xshifted = xreal + hitshiftinx
387  // zreal = zshifted + zOffset
388  // xreal = xshifted - hitshiftinx
389 
390 
391  zreal[indexForArrays] = zshifted + zOffset;
392  // iterate to get the correct B field
393  for (Int_t iTry = 0; iTry<iterationsForBfield; ++iTry)
394  {
395 
396  if (kTRUE == keepBConstant)
397  {
398  // do not take B field into account for plotting
399  Byplus = 1.;
400  Byminus = 1.;
401  // do not iterate
402  iTry = iterationsForBfield+10;
403  }
404  else
405  {
406  // try to plot the track taking the B-field in y direction into account
407 
408  po[2] = zreal[indexForArrays];
409 
410  lastxminusreal = lastxminusshifted-hitshiftinx;
411  lastxminusreal = lastxminusshifted-hitshiftinx;
412 
413 
414  po[0] = lastxminusreal;
415  fField->GetFieldValue(po, BB); //return value in KG (G3)
416  Byminus = BB[1] / 10.; // y-component of magnetic field in Tesla
417 
418  po[0] = lastxplusreal;
419  fField->GetFieldValue(po, BB); //return value in KG (G3)
420  Byplus = BB[1] / 10.; // y-component of magnetic field in Tesla
421 
422  if (6<verbose)
423  {
424  std::cout << iTry << ". try: z+zOffset = " << zreal[indexForArrays] << " cm Byminus = "
425  << Byminus << " T Byplus = " << Byplus << " T"
426  << std::endl;
427  std::cout << "lastxplusreal = " << lastxplusreal << " cm lastxminusreal = " << lastxminusreal << " cm" << std::endl;
428  }
429 
430  // This is just a workaround as I have to divide by By (parabola becomes straight line if By is small)
431  if (0 == Byminus)
432  {
433  Byminus = 1. / 10000.;
434  }
435  if (0 == Byplus)
436  {
437  Byplus = 1. / 10000.;
438  }
439  }
440 
441  Double_t ztantheta = zshifted / tantheta;
442  Double_t a = -ztantheta + pzstuff / Byminus;
443  xminusshifted = a - sqrt(a * a - zshifted / pzinv / c / sin(realtheta) / Byminus - ztantheta * ztantheta);
444  a = -ztantheta + pzstuff / Byplus;
445  xplusshifted = a + sqrt(a * a - zshifted / pzinv / c / sin(realtheta) / Byplus - ztantheta * ztantheta);
446 
447 
448  lastxminusshifted = xminusshifted;
449  lastxplusshifted = xplusshifted;
450 
451  //std::cout << "\n\n(z+zOffset, xminus, xplus) = (" << z<< ", " << xminus << ", " << xplus << ")\n\n\n";
452  } // iterated to find correct B field
453 
454  xplusreal[indexForArrays] = xplusshifted - hitshiftinx;
455  xminusreal[indexForArrays] = xminusshifted - hitshiftinx;
456 
457 
458  if (zreal[indexForArrays] > 415. && zreal[indexForArrays] < 490.)
459  {
460  // TODO:: Try alternative: determine maximum of B field
461 
462  //the following lines average the B field (probably not what I want to do...)
463  ++howManyPointsInBField;
464  // integrate B field along the path of the particle (might be helpful for reconstructing pz
465  po[2] = zreal[indexForArrays];
466  po[0] = xplusreal[indexForArrays];
467  fField->GetFieldValue(po, BB); //return value in KG (G3)
468  BMeanPlus += BB[1]/10.;
469 
470  po[0] = xminusreal[indexForArrays];
471  fField->GetFieldValue(po, BB); //return value in KG (G3)
472  BMeanMinus += BB[1]/10.;
473  }
474 
475  } // for loop over z coordinate
476 
477  BMeanPlus = BMeanPlus/howManyPointsInBField;
478  BMeanMinus = BMeanMinus/howManyPointsInBField;
479 
480  if (1<verbose)
481  {
482  cout << "??? BMeanPlus = " << BMeanPlus << std::endl;
483  cout << "??? BMeanMinus = " << BMeanMinus << std::endl;
484  }
485 
486  ParabolaFitInXZPlane->DrawGraph(nPoints, zreal, xplusreal,"P,SAME");
487  ParabolaFitInXZPlane->DrawGraph(nPoints, zreal, xminusreal,"P,SAME");
488  return max(BMeanPlus,BMeanMinus);
489 }
theta
double theta
Definition: macro/detectors/emc/dedicated/reco_analys.C:24
sqrt
friend F32vec4 sqrt(const F32vec4 &a)
Definition: P4_F32vec4.h:29
verbose
#define verbose
Definition: PndRadMapBoxMesh.cxx:15
sin
friend F32vec4 sin(const F32vec4 &a)
Definition: P4_F32vec4.h:111
max
friend F32vec4 max(const F32vec4 &a, const F32vec4 &b)
Definition: P4_F32vec4.h:26
a
Int_t a
Definition: anaLmdDigi.C:126
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
c
GeV c
Definition: ReadMesDecCorrRes_PiT.C:28
program_options
int plotHoughTrackCand ( PndFtsHoughTrackCand *  trackCand,
TGraph *  returnTGraph 
)

Definition at line 288 of file plotTrackCands.C.

References Double_t, PndFtsHoughTrackCand::getPos(), PndFtsHoughTrackCand::getZLineParabola(), PndFtsHoughTrackCand::getZParabolaLine(), pos, x, and z.

Referenced by plotTrackCands().

289 {
290 
291  // calculate two points on lines, many points for parabola and return result in TGraph*
292 
293 
294  const Double_t fZLineParabola = trackCand->getZLineParabola();
295  const Double_t fZParabolaLine = trackCand->getZParabolaLine();
296  TVector3 pos;
297 
298 
299  const Int_t nPoints = 50; // first 2 for line before dipole, last 2 for line after dipole, rest for parabola within dipole
300  Double_t z[nPoints] = { fZLineParabola-500., fZLineParabola }; // all coordinates are in PANDA coordinate system
301  Double_t x[nPoints];
302  for (Int_t iPoint = 0; iPoint < nPoints; ++iPoint)
303  {
304  switch (iPoint)
305  {
306  case 0:
307  z[iPoint] = fZLineParabola-100.;
308  break;
309  case 1:
310  z[iPoint] = fZLineParabola;
311  break;
312  case nPoints-2:
313  z[iPoint] = fZParabolaLine;
314  break;
315  case nPoints-1:
316  z[iPoint] = fZParabolaLine+100.;
317  break;
318  default:
319  z[iPoint] = (fZParabolaLine-fZLineParabola)/(nPoints-4);
320  }
321  pos = trackCand->getPos(z[iPoint]);
322  x[iPoint] = pos.X();
323  }
324 
325  returnTGraph->DrawGraph(nPoints,z,x,"LP,SAME") ;
326  return 0;
327 }
pos
TVector3 pos
Definition: GammaSpectraAnalysis.C:43
PndFtsHoughTrackCand::getPos
TVector3 getPos(const Double_t zLabSys) const
Definition: PndFtsHoughTrackCand.cxx:331
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
z
Double_t z
Definition: createRootFscGeometryFile.C:146
x
Double_t x
Definition: createRootFscGeometryFile.C:159
int PlotMCTracks ( int  iEvent,
TString  branchName,
TString  tcaName,
TGraph *  mcPoints,
TFile *  fSim = 0 
)

Definition at line 75 of file plotTrackCands.C.

References Double_t, obj, point, verbose, X, Y, and Z.

Referenced by plotTrackCands().

76 {
77  // if no file is specified the newest open file is used
78 
79  // Uncomment if you want to test the routine without calling it in a macro (by copy pasting into the interpreter)
80  // TString branchName="FTSPoint"; TString tcaName="PndFtsPoint";
81  // TString branchName="STTPoint"; TString tcaName="PndSttPoint";
82 
83  int verbose = 0;
84 
85  // use last file if none is specified
86  if (0==fSim) {
87  fSim = gFile;
88  }
89 
90  TTree* tSim = (TTree*) (gFile->Get("pndsim"));
91  //tSim->StartViewer();
92  TClonesArray* Points = new TClonesArray(tcaName);
93  tSim->SetBranchAddress(branchName, &Points);
94  TBranch* br = tSim->FindBranch(branchName);
95 
96  if (br == 0 || br->GetEntries() == 0 || iEvent >= br->GetEntries())
97  return;
98 
99 
100  tSim->GetEntry(iEvent); // Look at event iEvent
101  const Int_t nPoints = Points->GetEntriesFast();
102  // store coordinates of points for plotting in TGraph
103  Double_t X[nPoints];
104  Double_t Y[nPoints]; // not used for plotting
105  Double_t Z[nPoints];
106 
107 
108  for (int iPoint = 0; iPoint < nPoints; iPoint++)
109  {
110  TObject* obj = Points->At(iPoint);
111  if (iPoint < 1 && verbose > 5)
112  {
113  std::cout << obj->ClassName() << std::endl;
114  std::cout << "obj->InheritsFrom(FairMCPoint) = "
115  << obj->InheritsFrom("FairMCPoint") << std::endl;
116  std::cout << "obj->InheritsFrom(FairHit) = "
117  << obj->InheritsFrom("FairHit") << std::endl;
118  }
119  TVector3 point;
120  if (obj->InheritsFrom("FairMCPoint"))
121  {
122  FairMCPoint* myPoint = (FairMCPoint*) obj;
123  myPoint->Position(point);
124  }
125  else if (obj->InheritsFrom("FairHit"))
126  {
127  FairHit* myHit = (FairHit*) obj;
128  myHit->Position(point);
129  }
130  else
131  {
132  std::cout
133  << "Error, the hit or point does neither inherit from FairHit nor from FairMCPoint \n";
134  }
135 
136  // Hit coordinates
137  X[iPoint] = point.X();
138  Y[iPoint] = point.Y();
139  Z[iPoint] = point.Z();
140 
141  //mcPoints->Fill(Z, X);
142 
143  if (verbose > 2)
144  {
145  std::cout << "Point " << iPoint << " : ";
146  //myPoint->Print();
147  std::cout << "Z=" << Z[iPoint] << "cm X=" << X[iPoint] << "cm Y=" << Y[iPoint] << "cm"
148  << std::endl;
149  }
150 
151  }
152 
153  if (0<nPoints)
154  {
155  mcPoints->DrawGraph(nPoints, Z, X, "P,SAME");
156  // DrawGraph(Int_t n, const Double_t *x=0, const Double_t *y=0, Option_t *option="");
157  }
158 
159 
160  tSim->ResetBranchAddresses();
161  Points->Delete(); // maybe Points->Clear(); would be enough...
162  return 0;
163 }
verbose
#define verbose
Definition: PndRadMapBoxMesh.cxx:15
Y
double Y
Definition: anaLmdDigi.C:68
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
point
TClonesArray * point
Definition: anaLmdDigi.C:29
X
double X
Definition: anaLmdDigi.C:68
Z
double Z
Definition: anaLmdDigi.C:68
obj
PndAnaPidSelector *& obj
Definition: PndAnaPidSelector.cxx:35
int PlotMCTracksPrintBField ( PndMultiField *  fField,
int  iEvent,
TString  branchName,
TString  tcaName,
TH2D *  mcPoints 
)

Definition at line 166 of file plotTrackCands.C.

References Double_t, obj, point, verbose, X, Y, and Z.

168 {
169  // File that you want to access needs to be opened first (and not other file after it), because the file is accessed via gFile
170  // TODO I could also pass in the handle instead of using gFile
171 
172  // Uncomment if you want to test the routine without calling it in a macro (by copy pasting into the interpreter)
173  // TString branchName="FTSPoint"; TString tcaName="PndFtsPoint";
174  // TString branchName="STTPoint"; TString tcaName="PndSttPoint";
175 
176  int verbose = 6;
177 
178  TTree* tSim = (TTree*) (gFile->Get("pndsim"));
179  //tSim->StartViewer();
180  if (verbose > 5)
181  {
182  std::cout << "Got the tree" << std::endl;
183  }
184 
185  TClonesArray* Points = new TClonesArray(tcaName);
186  if (verbose > 5)
187  {
188  std::cout << "Created new TCA" << std::endl;
189  }
190  tSim->SetBranchAddress(branchName, &Points);
191  if (verbose > 5)
192  {
193  std::cout << "Set the branchName" << std::endl;
194  }
195  TBranch* br = tSim->FindBranch(branchName);
196  if (verbose > 5)
197  {
198  std::cout << "Found the branch" << std::endl;
199  }
200  if (br == 0 || br->GetEntries() == 0 || iEvent >= br->GetEntries())
201  return;
202  if (verbose > 3)
203  {
204  std::cout << "Passed the test" << std::endl;
205  }
206  tSim->GetEntry(iEvent); // Look at event iEvent
207  if (verbose > 2)
208  {
209  std::cout << "Number of points: " << Points->GetEntriesFast()
210  << std::endl;
211  }
212  for (int iPoint = 0; iPoint < Points->GetEntriesFast(); iPoint++)
213  {
214  TObject* obj = Points->At(iPoint);
215  if (iPoint < 1 && verbose > 5)
216  {
217  std::cout << obj->ClassName() << std::endl;
218  std::cout << "obj->InheritsFrom(FairMCPoint) = "
219  << obj->InheritsFrom("FairMCPoint") << std::endl;
220  std::cout << "obj->InheritsFrom(FairHit) = "
221  << obj->InheritsFrom("FairHit") << std::endl;
222  }
223  TVector3 point;
224  if (obj->InheritsFrom("FairMCPoint"))
225  {
226  FairMCPoint* myPoint = (FairMCPoint*) obj;
227  myPoint->Position(point);
228  }
229  else if (obj->InheritsFrom("FairHit"))
230  {
231  FairHit* myHit = (FairHit*) obj;
232  myHit->Position(point);
233  }
234  else
235  {
236  std::cout
237  << "Error, the hit or point does neither inherit from FairHit nor from FairMCPoint \n";
238  }
239 
240  // Hit coordinates
241  Double_t X = point.X();
242  Double_t Y = point.Y();
243  Double_t Z = point.Z();
244 
245  mcPoints->Fill(Z, X);
246 
247  // Get the magnetic field at the point location
248  // This draws the magnetic field in pointer fField into histogram Bfield
249 
250  Double_t po[3], BB[3];
251  Double_t Btot = 0;
252 
253  po[0] = X;
254  po[1] = Y;
255  po[2] = Z;
256 
257  fField->GetFieldValue(po, BB); //return value in KG (G3)
258 
259  if (verbose > 2)
260  {
261  std::cout << "Point " << iPoint << " : ";
262  //myPoint->Print();
263  std::cout << "Z=" << Z << "cm X=" << X << "cm Y=" << Y << "cm BX="
264  << BB[0] / 10. << "T BY=" << BB[1] / 10. << "T BZ="
265  << BB[2] / 10. << "T" << std::endl;
266  }
267 
268  }
269 
270  mcPoints->SetMarkerColor(2);
271  mcPoints->SetMarkerStyle(29);
272  mcPoints->SetMarkerSize(1);
273 
274  tSim->ResetBranchAddresses();
275  Points->Delete(); // maybe Points->Clear(); would be enough...
276  return 0;
277 
278 }
verbose
#define verbose
Definition: PndRadMapBoxMesh.cxx:15
Y
double Y
Definition: anaLmdDigi.C:68
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
point
TClonesArray * point
Definition: anaLmdDigi.C:29
X
double X
Definition: anaLmdDigi.C:68
Z
double Z
Definition: anaLmdDigi.C:68
program_options
obj
PndAnaPidSelector *& obj
Definition: PndAnaPidSelector.cxx:35
int plotTrackCands ( int  iEvent)

Definition at line 569 of file plotTrackCands.C.

References BeamMomentum, DigiFile, Double_t, DrawField(), fField, fVerbose, PndFtsHit::GetLayerID(), PndFtsHit::GetSkewed(), hit(), hits, PndMultiField::Init(), nHits, plotHoughTrackCand(), PlotMCTracks(), RecoFile, and TString.

570 {
571 
572  UInt_t fVerbose = 0;
573 
574 
575  gROOT->LoadMacro("$VMCWORKDIR/gconfig/basiclibs.C");
576  // basiclibs(); // this gives an error when compiling
577 
578  // Load the example libraries
579  gSystem->Load("libGeoBase");
580  gSystem->Load("libParBase");
581  gSystem->Load("libBase");
582  gSystem->Load("libField");
583  gSystem->Load("libFts");
584 
585 
586 
587  gROOT->Macro("$VMCWORKDIR/gconfig/rootlogon.C");
588  gROOT->SetStyle("Plain");
589  gStyle->SetMarkerStyle(20);
590  gStyle->SetOptStat(0);
591  gStyle->SetPalette(1);
592 
593 
594 
595  // -----------------------------------------------------------------------
596  // FileNames
597  TString RecoFile = "reco_complete.root";
598  TString DigiFile = "digi_complete.root";
599  TString SimFile = "sim_complete.root";
600  // -----------------------------------------------------------------------
601 
602 
603 
604 
605 
606 
607  // General stuff
608  const Double_t BeamMomentum = 15.; //6.991;
609  const Double_t meinpi = 3.14159265359;
610  const Int_t ResolutionX = 800, ResolutionY = 600; // for plotting
611 
612  // -----------------------------------------------------------------------
613 
614  // for B field access
615  Double_t By = 0.;
616  Double_t po[3], BB[3];
617  Double_t BMeanForParabolapz = 0;
618  Double_t BMeanForParabola = 0;
619 
620  // -----------------------------------------------------------------------
621 
622 
623 
624 
625 
626 
627  // Histograms
628  // TH2D* hits = new TH2D("hits", "hits", 276, 250, 800, 331, -330, 330);
629  // TString mcPointsHistoname = "mcPoints event ";
630  // mcPointsHistoname += iEvent;
631  // TH2D* mcPoints = new TH2D(mcPointsHistoname, mcPointsHistoname, 1200, -200, 1000, 500, -250,
632  // 250);
633 
634  TH2F* fFieldHist = NULL;
635 
636  fFieldHist = new TH2F("Bfield", "", 650, -200, 1100, 250, -250, 250);
637  fFieldHist->GetXaxis()->SetTitle("z [cm]");
638  fFieldHist->GetYaxis()->SetTitle("x [cm]");
639 
640 
641 
642  // TH2D* Fitinxzplane= new TH2D("Fitinxzplane", "Fitinxzplane", 800, 0, 800, 500, -250, 250);
643  TGraph* FitInXZPlane = new TGraph();
644  FitInXZPlane->SetMarkerColor(4);
645  FitInXZPlane->SetMarkerStyle(1);
646  FitInXZPlane->SetMarkerSize(1.1);
647  FitInXZPlane->SetLineColor(4);
648  FitInXZPlane->SetLineWidth(1.5);
649 
650 
651 
652 
653 
654  // Initialize the B-field // new method
655  PndMultiField *fField= new PndMultiField("FULL", BeamMomentum); //beam momentum is BeamMomentum in GeV/c (for scaling of dipole field)
656  fField->Init();
657 
658 
659 
660 
661  // // That is what I used before Mohammad did some changes
662  //
663  // // Create the Simulation run manager--------------------------------
664  // FairRunSim *fRun = new FairRunSim();
665  // //fRun->SetName(SimEngine.Data() );
666  // //fRun->SetOutputFile(OutputFile.Data());
667  // fRun->SetBeamMom(BeamMomentum);
668  // //fRun->SetMaterials(MediaFile.Data());
669  // //FairRuntimeDb *rtdb=fRun->GetRuntimeDb();
670  //
671  // PndMultiField *fField= new PndMultiField("FULL");
672  // fField->Init();
673 
674 
675  TCanvas *cEventZx = NULL;
676 
677  cEventZx = new TCanvas("zx plane", "zx plane", ResolutionX, ResolutionY);
678  // Plot the B-field
679  DrawField(fField, fFieldHist);
680  fFieldHist->Draw("cont1");
681 
682 
683 
684 
685 
686 
687 
688 
689 
690 
691 
692 
693 
694 
695 
696 
697 
698 
699 
700 
701 
702 
703 
704 
705 
706 
707 
708 
709  // // This code can be used to test the fit drawing method with B field
710  // for (Double_t thetatest=0.1; thetatest <30.; thetatest+=14.)
711  // {
712  // void MakeHoughParabolaFitwithBfield(PndMultiField *fField, Double_t pzinv, Double_t theta,
713  // Double_t weight, Double_t zOffset, Double_t hitshiftinx, Double_t zscaling, const Double_t c,
714  // const Bool_t keepBConstant, TH2D* Fitinxzplane)
715  // // make some test plots for 1/pz
716  // //MakeHoughParabolaFitwithBfield(fField,-1./300./thetatest,0.01,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
717  // // rotate in positive theta direction (counterclockwise)
718  // //MakeHoughParabolaFitwithBfield(fField,-1./1000.,thetatest,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
719  // // rotate in negative theta direction (clockwise)
720  // MakeHoughParabolaFitwithBfield(fField,-1./3000.,-thetatest,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
721  // }
722  //
723  //
724  // // This code can be used to test the fit drawing method without B field
725  // for (Double_t thetatest=0.1; thetatest <30.; thetatest+=14.)
726  // {
727  // // make some test plots for 1/pz
728  // //MakeHoughFit(-1./300./thetatest,0.01,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
729  // // rotate in positive theta direction (counterclockwise)
730  // //MakeHoughFit(-1./1000.,thetatest,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
731  // // rotate in negative theta direction (clockwise)
732  // MakeHoughFit(-1./3000.,-thetatest,thetatest*thetatest,zOffset,0.,1.,c,keepBConstant,Fitinxzplane);
733  // }
734 
735  // plot the fit
736  //const int ResolutionX = 800, ResolutionY = 600;
737  //TCanvas *cHoughFit=new TCanvas("cHoughFit","cHoughFit",ResolutionX,ResolutionY);
738 
739 
740  //
741 
742 
743 
744 
745 
746 
747 
748 
749 
750 
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755 
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764 
765 
766 
767 
768 
769 
770 
771  cEventZx->cd(0);
772  // Plot the MC Points
773  const int subdetectorCount = 11; //
774  TString branchNames[subdetectorCount] =
775  { "FTSPoint", "STTPoint", "MVDPoint", "GEMPoint", "DrcBarPoint",
776  "DrcPDPoint", "DskParticle", "PndDskFLGHit", "MdtPoint",
777  "FtofPoint", "EmcHit" };
778  TString tcaNames[subdetectorCount] =
779  { "PndFtsPoint", "PndSttPoint", "PndSdsMCPoint", "PndGemMCPoint",
780  "PndDrcBarPoint", "PndDrcPDPoint", "PndDskParticle", "PndDskFLGHit",
781  "PndMdtPoint", "PndFtofPoint", "PndEmcHit" };
782  std::cout << "Event number " << iEvent << std::endl;
783 
784 
785  TGraph *mcPoints = new TGraph();
786  mcPoints->SetMarkerColor(2);
787  mcPoints->SetMarkerStyle(29);
788  mcPoints->SetMarkerSize(1.4);
789  mcPoints->SetLineColor(2);
790  TFile* fSim = new TFile(SimFile.Data());
791  for (int iSubdetector = 0; iSubdetector < subdetectorCount; ++iSubdetector)
792  {
793  cout << iSubdetector
794  << ". subdetector: branchNames[iSubdetector], tcaNames[iSubdetector] = "
795  << branchNames[iSubdetector] << " " << tcaNames[iSubdetector]
796  << std::endl;
797  PlotMCTracks(iEvent, branchNames[iSubdetector], tcaNames[iSubdetector], mcPoints, fSim);
798  }
799  // do not close the file fSim, otherwise, you won't see any plots
800 
801 
802 
803  // get FTS Hits
804  TFile* fDigi = new TFile(DigiFile.Data());
805  TTree* tDigi = (TTree*) (fDigi->Get("pndsim"));
806  //tDigi->StartViewer();
807 
808  TClonesArray* fFtsHitArray = new TClonesArray("PndFtsHit");
809  tDigi->SetBranchAddress("FTSHit", &fFtsHitArray);
810  tDigi->GetEntry(iEvent); // Look at event iEvent
811 
812  // Plot FTS hits
813  TGraph* hits = new TGraph();
814  hits->SetMarkerStyle(2);
815  hits->SetMarkerColor(1);
816  hits->SetMarkerSize(2.0);
817  const Int_t nHits = fFtsHitArray->GetEntriesFast();
818  Double_t hitX[nHits];
819  Double_t hitY[nHits];
820  Double_t hitZ[nHits];
821  for (int iHit = 0; iHit < nHits; iHit++)
822  {
823  PndFtsHit* myHit = (PndFtsHit*) fFtsHitArray->At(iHit);
824  // if (kTRUE == onlyUseHitsFromNonSkewedStraws)
825  // {
826  if (0 != myHit->GetSkewed())
827  {
828  if (0<fVerbose) {std::cout << "Not drawing hit with index " << iHit << " , because it comes from a skewed straw! LayerID = " << myHit->GetLayerID() << std::endl;}
829  continue;
830  }
831 
832  // }
833  TVector3 hit;
834  myHit->Position(hit);
835 
836  hitX[iHit] = hit.X();
837  hitY[iHit] = hit.Y();
838  hitZ[iHit] = hit.Z();
839 
840 
841  if (0<fVerbose)
842  {
843  std::cout << "Hit " << iHit << " : ";
844  //myHit->Print();
845  std::cout << "X: " << hitX[iHit] << " Y: " << hitY[iHit] << " Z: " << hitZ[iHit]
846  << std::endl;
847  }
848  }
849  hits->DrawGraph(nHits, hitZ, hitX, "P,SAME");
850 
851 
852 
853  // TTree *tree=(TTree *) fSim->Get("pndsim") ;
854  // TClonesArray* mc_array=new TClonesArray("PndMCTrack");
855  // tree->SetBranchAddress("MCTrack", &mc_array);
856  // tree->GetEntry(iEvent);
857  // for (Int_t mcIndex = 0; mcIndex < mc_array->GetEntriesFast(); ++mcIndex)
858  // {
859  // PndMCTrack *mctrack = (PndMCTrack*)mc_array->At(mcIndex);
860  // // only look at primary particles
861  // if (mctrack->GetMotherID()!=-1) continue;
862  //
863  // Int_t mc_pid = mctrack->GetPdgCode();
864  // Double_t mc_px = mctrack->GetMomentum().X();
865  // Double_t mc_py = mctrack->GetMomentum().Y();
866  // Double_t mc_pz = mctrack->GetMomentum().Z();
867  // // Double_t mc_theta = mctrack->GetMomentum().Theta()*TMath::RadToDeg();
868  // // Double_t mc_phi = mctrack->GetMomentum().Phi()*TMath::RadToDeg();
869  // //
870  // // Double_t mc_theta_xz = atan2(mc_px,mc_pz)*TMath::RadToDeg();
871  //
872  // std::cout << "Primary particle with pid " << mc_pid << " has momentum = (" << mc_px << ", " << mc_py << ", " << mc_pz << ") GeV/c (at interaction point)" << std::endl;
873  //
874  // // std::cout<<setprecision(4);
875  // TString histoname = "Single #mu^{-} event with MC p_{z} = ";
876  // // manually round mc_pz to a.bc, for example: 4.71
877  // TString numMCTruth="", numReco="";
878  // numMCTruth += mc_pz+0.0005;
879  // numMCTruth.Resize(5);
880  // histoname += numMCTruth;
881  // histoname += " GeV/c <-> FTS PR p_{z} = ";
882  // numReco +=pzinvpeak+0.0005;
883  // numReco.Resize(5);
884  // histoname += numReco;
885  // histoname += " GeV/c"; //, red = points, black = FTS hits";
886  //
887  // fFieldHist->SetTitle(histoname);
888 
889 
890 
891  // get PndFtsHoughTrackCand
892  TFile* fReco = new TFile(RecoFile.Data());
893  TTree* tReco = (TTree*) (fReco->Get("pndsim"));
894  //tReco->StartViewer();
895 
896  TClonesArray* fTrackCands = new TClonesArray("PndFtsHoughTrackCand");
897  tReco->SetBranchAddress("PndFtsHoughTrackCand", &fTrackCands);
898  tReco->GetEntry(iEvent); // Look at event iEvent
899  cout << fTrackCands->GetEntriesFast()<< " Hough track cands. in event\n";
900 
901  // Plotting of HoughTrackCands
902  cEventZx->cd(0);
903  for (UInt_t iTrackCand=0; iTrackCand < fTrackCands->GetEntriesFast(); ++iTrackCand){
904  PndFtsHoughTrackCand *myTrackCand = (PndFtsHoughTrackCand*) fTrackCands->At(iTrackCand);
905  plotHoughTrackCand(myTrackCand, FitInXZPlane);
906  }
907  return 0;
908 }
fField
PndMultiField * fField
Definition: sim_emc_apd.C:97
fVerbose
int fVerbose
Definition: poormantracks.C:24
RecoFile
TString RecoFile
Definition: emc/run_linkCreation.C:15
DrawField
int DrawField(PndMultiField *fField, TH2F *Bfield)
Definition: plotTrackCands.C:493
BeamMomentum
double BeamMomentum
Definition: sim_ftof_stof.C:17
PndFtsHit::GetLayerID
Int_t GetLayerID() const
Definition: PndFtsHit.h:74
DigiFile
TString DigiFile
Definition: emc/run_linkCreation.C:14
nHits
int nHits
Definition: RiemannTest.C:16
Double_t
Double_t
Definition: SimCompleteLinkDef.h:6
hit
int hit(Int_t nEvents=0, TString inFile="sim.root", TString parFile="par.root", TString inDigi="digi.root", TString outFile="hit.root", Int_t timeBased=0)
Definition: hit.C:1
program_options
PndFtsHit::GetSkewed
Int_t GetSkewed() const
Definition: PndFtsHit.h:75
PndFtsHoughTrackCand
Class for saving a FTS track cand. for Hough transform based FTS PR.
Definition: PndFtsHoughTrackCand.h:47
hits
CbmHit * hits[nHits]
Definition: RiemannTest.C:19
plotHoughTrackCand
int plotHoughTrackCand(PndFtsHoughTrackCand *trackCand, TGraph *returnTGraph)
Definition: plotTrackCands.C:288
PlotMCTracks
int PlotMCTracks(int iEvent, TString branchName, TString tcaName, TGraph *mcPoints, TFile *fSim=0)
Definition: plotTrackCands.C:75
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