[u/mrichter/AliRoot.git] / FMD / AliFMDDisplay.cxx

/**************************************************************************
 * Copyright(c) 2004, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
/* $Id$ */
/** @file    AliFMDDisplay.cxx
    @author  Christian Holm Christensen <cholm@nbi.dk>
    @date    Mon Mar 27 12:39:09 2006
    @brief   FMD Event display 
*/
//___________________________________________________________________
//
// The classes defined here, are utility classes for reading in data
// for the FMD.  They are  put in a seperate library to not polute the
// normal libraries.  The classes are intended to be used as base
// classes for customized class that do some sort of analysis on the
// various types of data produced by the FMD. 
//
// Latest changes by Christian Holm Christensen
//
#include "AliFMDDisplay.h"	// ALIFMDDISPLAY_H
#include "AliFMDHit.h"          // ALIFMDHIT_H
#include "AliFMDDigit.h"        // ALIFMDDIGIT_H
#include "AliFMDRecPoint.h"     // ALIFMDRECPOINT_H
#include "AliFMDGeometry.h"	// ALIFMDGEOMETRY_H
#include "AliFMDParameters.h"	// ALIFMDPARAMETERS_H
#include <AliESDFMD.h>          // ALIESDFMD_H
#include <AliLog.h>
#include <TStyle.h>
// #include <TArrayF.h>
#include <TMarker3DBox.h>
#include <TGeoManager.h>
// #include <TMath.h>
#include <TApplication.h>
#include <TButton.h>
// #include <TParticle.h>
#include <TCanvas.h>
#include <TView.h>
#include <TVirtualX.h>

//____________________________________________________________________
ClassImp(AliFMDDisplay)
#if 0
  ; // This is here to keep Emacs for indenting the next line
#endif

//____________________________________________________________________
AliFMDDisplay* AliFMDDisplay::fgInstance = 0;

//____________________________________________________________________
AliFMDDisplay* 
AliFMDDisplay::Instance()
{
  // Return static instance 
  return fgInstance;
}

//____________________________________________________________________
AliFMDDisplay::AliFMDDisplay(const char* gAliceFile)
  : AliFMDInput(gAliceFile),
    fWait(kFALSE),
    fMarkers(0),
    fHits(0),
    fCanvas(0), 
    fPad(0), 
    fButton(0), 
    fZoom(0),
    fPick(0),
    fZoomMode(kFALSE),
    fX0(0),
    fY0(0),
    fX1(0),
    fY1(0),
    fMultCut(0),
    fPedestalFactor(0),
    fXPixel(0),
    fYPixel(0),
    fOldXPixel(0),
    fOldYPixel(0),
    fLineDrawn(0)
{
  // Constructor of an FMD display object. 
  AddLoad(kGeometry);
  fMarkers = new TObjArray;
  fHits    = new TObjArray;
  fMarkers->SetOwner(kTRUE);
  fHits->SetOwner(kFALSE);
  fgInstance = this;
  SetMultiplicityCut();
  SetPedestalFactor();
}

//____________________________________________________________________
void           
AliFMDDisplay::ExecuteEvent(Int_t event, Int_t px, Int_t py) 
{
  // AliInfo(Form("Event %d, at (%d,%d)", px, py));
  if (px == 0 && py == 0) return;
  if (!fZoomMode && fPad->GetView()) {
    fPad->GetView()->ExecuteRotateView(event, px, py);
    return;
  }
  fPad->SetCursor(kCross);
  switch (event) {
  case kButton1Down: 
    fPad->TAttLine::Modify();
    fX0        = fPad->AbsPixeltoX(px);
    fY0        = fPad->AbsPixeltoY(py);
    fXPixel    = fOldXPixel = px;
    fYPixel    = fOldYPixel = py;
    fLineDrawn = kFALSE;
    return;
  case kButton1Motion:
    if (fLineDrawn) 
      gVirtualX->DrawBox(fXPixel, fYPixel, fOldXPixel, fOldYPixel, 
			 TVirtualX::kHollow);
    fOldXPixel = px;
    fOldYPixel = py;
    fLineDrawn = kTRUE;
    gVirtualX->DrawBox(fXPixel, fYPixel, fOldXPixel, fOldYPixel, 
		       TVirtualX::kHollow);
    return;
  case kButton1Up:
    fPad->GetCanvas()->FeedbackMode(kFALSE);
    if (px == fXPixel || py == fYPixel) return;
    fX1 = fPad->AbsPixeltoX(px);
    fY1 = fPad->AbsPixeltoY(py);
    if (fX1 < fX0) std::swap(fX0, fX1); 
    if (fY1 < fY0) std::swap(fY0, fY1); 
    fPad->Range(fX0, fY0, fX1, fY1);
    fPad->Modified();
    return;
  }
}

//____________________________________________________________________
Int_t          
AliFMDDisplay::DistancetoPrimitive(Int_t px, Int_t) 
{
  // AliInfo(Form("@ (%d,%d)", px, py));
  fPad->SetCursor(kCross);
  Float_t xmin = fPad->GetX1();
  Float_t xmax = fPad->GetX2();
  Float_t dx   = .02 * (xmax - xmin);
  Float_t x    = fPad->AbsPixeltoX(px);
  if (x < xmin + dx || x > xmax - dx) return 9999;
  return (fZoomMode ? 0 : 7);
}
//____________________________________________________________________
Bool_t 
AliFMDDisplay::Init()
{
  // Initialize.  GEt transforms and such, 
  if (!AliFMDInput::Init()) return kFALSE;
  AliFMDGeometry* geom = AliFMDGeometry::Instance();
  geom->Init();
  geom->InitTransformations();
  // AliFMDParameters* parm = AliFMDParameters::Instance();
  // parm->Init();
  return kTRUE;
}
//____________________________________________________________________
Bool_t 
AliFMDDisplay::Begin(Int_t event) 
{
  // Begin of event.  Make canvas is not already done 
  if (!fCanvas) {
    gStyle->SetPalette(1);
    fCanvas = new TCanvas("display", "Display", 700, 700);
    fCanvas->SetFillColor(1);
    fCanvas->ToggleEventStatus();
    fPad = new TPad("view3D", "3DView", 0.0, 0.05, 1.0, 1.0, 1, 0, 0);
    fCanvas->cd();
    fPad->Draw();
  }
  if (!fButton) {
    fCanvas->cd();
    fButton = new TButton("Continue", "AliFMDDisplay::Instance()->Continue()",
			  0, 0, .5, .05);
    fButton->Draw();
    fZoom = new TButton("Zoom", "AliFMDDisplay::Instance()->Zoom()",
			.5, 0, .75, .05);
    fZoom->Draw();
    fPick = new TButton("Pick", "AliFMDDisplay::Instance()->Pick()",
			.75, 0, 1, .05);
    fPick->Draw();
  }
  AliInfo("Clearing canvas");
  // fCanvas->Clear();
  if (!fGeoManager) {
    Warning("End", "No geometry manager");
    return kFALSE;
  }
  AliInfo("Drawing geometry");
  fPad->cd();
  fGeoManager->GetTopVolume()->Draw();
  AliInfo("Adjusting view");
  Int_t irep;
  if (fPad->GetView()) {
    fPad->GetView()->SetView(-200, -40, 80, irep);
    fPad->GetView()->Zoom();
    fPad->Modified();
    fPad->cd();
  }
  return AliFMDInput::Begin(event);
}

//____________________________________________________________________
Bool_t 
AliFMDDisplay::End()
{
  // End of event.  Draw everything 
  fPad->cd();
  fMarkers->Draw();
  fPad->cd();
  AppendPad();
  // fPad->Update();
  fPad->cd();
  // fCanvas->Modified(kTRUE);
  //fCanvas->Update();
  // fCanvas->cd();
  // fPad->cd();
  fWait = kTRUE;
  while (fWait) {
    gApplication->StartIdleing();
    gSystem->InnerLoop();
    gApplication->StopIdleing();
  }
  AliInfo("After idle loop");
  fMarkers->Delete();
  fHits->Clear();
  AliInfo("After clearing caches");
  return AliFMDInput::End();
}

//____________________________________________________________________
Int_t
AliFMDDisplay::LookupColor(Float_t x, Float_t max) const
{
  // Look-up color 
  Int_t idx = Int_t(x / max * gStyle->GetNumberOfColors());
  return gStyle->GetColorPalette(idx);
}

//____________________________________________________________________
void
AliFMDDisplay::AddMarker(UShort_t det, Char_t rng, UShort_t sec, UShort_t str,
			 TObject* o, Float_t s, Float_t max)
{
  // Add a marker to the display
  //
  //    det 	Detector
  //    rng 	Ring
  //    sec 	Sector 
  //    str 	Strip
  //    o   	Object to refer to
  //    s   	Signal 
  //    max 	Maximum of signal 
  //
  AliFMDGeometry*   geom = AliFMDGeometry::Instance();
  Double_t x, y, z;
  geom->Detector2XYZ(det, rng, sec, str, x, y, z);
  Float_t  size  = .1;
  Float_t  zsize = s / max * 10;
  Float_t  r     = TMath::Sqrt(x * x + y * y);
  Float_t  theta = TMath::ATan2(r, z);
  Float_t  phi   = TMath::ATan2(y, x);
  Float_t  rz    = z + (z < 0 ? 1 : -1) * zsize;
  TMarker3DBox* marker = new  TMarker3DBox(x,y,rz,size,size,zsize,theta,phi);
  if (o) marker->SetRefObject(o);
  marker->SetLineColor(LookupColor(s, max));
  fMarkers->Add(marker);
}
  

//____________________________________________________________________
Bool_t 
AliFMDDisplay::ProcessHit(AliFMDHit* hit, TParticle* p) 
{
  // Process a hit 
  if (!hit) { AliError("No hit");   return kFALSE; }
  if (!p)   { AliError("No track"); return kFALSE; }

  fHits->Add(hit);
  Float_t  size  = .1;
  Float_t  zsize = hit->Edep() * 10;
  Float_t  z     = hit->Z() + (hit->Z() < 0 ? 1 : -1) * zsize; 
  Float_t  pt    = TMath::Sqrt(hit->Py()*hit->Py()+hit->Px()*hit->Px());
  Float_t  theta = TMath::ATan2(pt, hit->Pz());
  Float_t  phi   = TMath::ATan2(hit->Py(), hit->Px());
  TMarker3DBox* marker = new  TMarker3DBox(hit->X(), hit->Y(), z,
					   size, size, zsize, theta, phi);
  marker->SetLineColor(LookupColor(hit->Edep(), 1));
  marker->SetRefObject(hit);
  fMarkers->Add(marker);
  return kTRUE;
}

//____________________________________________________________________
Bool_t 
AliFMDDisplay::ProcessDigit(AliFMDDigit* digit)
{
  // Process a digit 
  if (!digit) { AliError("No digit");   return kFALSE; }

  AliFMDParameters* parm = AliFMDParameters::Instance();
  UShort_t det           =  digit->Detector();
  Char_t   ring          =  digit->Ring();
  UShort_t sec           =  digit->Sector();
  UShort_t str           =  digit->Strip();
  Double_t ped           =  parm->GetPedestal(det,ring, sec, str);
  Double_t pedW          =  parm->GetPedestalWidth(det,ring, sec, str);
  Double_t threshold     =  ped * fPedestalFactor * pedW;
  Float_t  counts        = digit->Counts();
  if (counts < threshold) return kTRUE;
  fHits->Add(digit);

  AddMarker(det, ring, sec, str, digit, counts, 1024);
  return kTRUE;
}

//____________________________________________________________________
Bool_t 
AliFMDDisplay::ProcessRaw(AliFMDDigit* digit)
{
  // PRocess raw data 
  return ProcessDigit(digit);
}

//____________________________________________________________________
Bool_t 
AliFMDDisplay::ProcessRecPoint(AliFMDRecPoint* recpoint)
{
  // Process reconstructed point 
  if (!recpoint) { AliError("No recpoint");   return kFALSE; }
  if (recpoint->Particles() < fMultCut) return kTRUE;
  fHits->Add(recpoint);
  AddMarker(recpoint->Detector(), recpoint->Ring(), recpoint->Sector(),  
	    recpoint->Strip(), recpoint, recpoint->Particles(), 20);
  return kTRUE;
}

//____________________________________________________________________
Bool_t 
AliFMDDisplay::ProcessESD(AliESDFMD* esd)
{
  // Process event summary data
  for (UShort_t det = 1; det <= 3; det++) {
    Char_t rings[] = { 'I', (det == 1 ? '\0' : 'O'), '\0' };
    for (Char_t* rng = rings; *rng != '\0'; rng++) {
      UShort_t nsec = (*rng == 'I' ?  20 :  40);
      UShort_t nstr = (*rng == 'O' ? 512 : 256);
      for (UShort_t sec = 0; sec < nsec; sec++) {
	for (UShort_t str = 0; str < nstr; str++) {
	  Float_t mult = esd->Multiplicity(det,*rng,sec,str);
	  if (mult < fMultCut) continue;
	  AddMarker(det,*rng,sec,str, 0, mult, 20);
	}
      }
    }
  }
  return kTRUE;
}

//____________________________________________________________________
//
// EOF
//
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 2004, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15	/* $Id$ */
	16	/** @file AliFMDDisplay.cxx
	17	@author Christian Holm Christensen <cholm@nbi.dk>
	18	@date Mon Mar 27 12:39:09 2006
	19	@brief FMD Event display
	20	*/
	21	//___________________________________________________________________
	22	//
	23	// The classes defined here, are utility classes for reading in data
	24	// for the FMD. They are put in a seperate library to not polute the
	25	// normal libraries. The classes are intended to be used as base
	26	// classes for customized class that do some sort of analysis on the
	27	// various types of data produced by the FMD.
	28	//
	29	// Latest changes by Christian Holm Christensen
	30	//
	31	#include "AliFMDDisplay.h" // ALIFMDDISPLAY_H
	32	#include "AliFMDHit.h" // ALIFMDHIT_H
	33	#include "AliFMDDigit.h" // ALIFMDDIGIT_H
	34	#include "AliFMDRecPoint.h" // ALIFMDRECPOINT_H
	35	#include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
	36	#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
	37	#include <AliESDFMD.h> // ALIESDFMD_H
	38	#include <AliLog.h>
	39	#include <TStyle.h>
	40	// #include <TArrayF.h>
	41	#include <TMarker3DBox.h>
	42	#include <TGeoManager.h>
	43	// #include <TMath.h>
	44	#include <TApplication.h>
	45	#include <TButton.h>
	46	// #include <TParticle.h>
	47	#include <TCanvas.h>
	48	#include <TView.h>
	49	#include <TVirtualX.h>
	50
	51	//____________________________________________________________________
	52	ClassImp(AliFMDDisplay)
	53	#if 0
	54	; // This is here to keep Emacs for indenting the next line
	55	#endif
	56
	57	//____________________________________________________________________
	58	AliFMDDisplay* AliFMDDisplay::fgInstance = 0;
	59
	60	//____________________________________________________________________
	61	AliFMDDisplay*
	62	AliFMDDisplay::Instance()
	63	{
	64	// Return static instance
	65	return fgInstance;
	66	}
	67
	68	//____________________________________________________________________
	69	AliFMDDisplay::AliFMDDisplay(const char* gAliceFile)
	70	: AliFMDInput(gAliceFile),
	71	fWait(kFALSE),
	72	fMarkers(0),
	73	fHits(0),
	74	fCanvas(0),
	75	fPad(0),
	76	fButton(0),
	77	fZoom(0),
	78	fPick(0),
	79	fZoomMode(kFALSE),
	80	fX0(0),
	81	fY0(0),
	82	fX1(0),
	83	fY1(0),
	84	fMultCut(0),
	85	fPedestalFactor(0),
	86	fXPixel(0),
	87	fYPixel(0),
	88	fOldXPixel(0),
	89	fOldYPixel(0),
	90	fLineDrawn(0)
	91	{
	92	// Constructor of an FMD display object.
	93	AddLoad(kGeometry);
	94	fMarkers = new TObjArray;
	95	fHits = new TObjArray;
	96	fMarkers->SetOwner(kTRUE);
	97	fHits->SetOwner(kFALSE);
	98	fgInstance = this;
	99	SetMultiplicityCut();
	100	SetPedestalFactor();
	101	}
	102
	103	//____________________________________________________________________
	104	void
	105	AliFMDDisplay::ExecuteEvent(Int_t event, Int_t px, Int_t py)
	106	{
	107	// AliInfo(Form("Event %d, at (%d,%d)", px, py));
	108	if (px == 0 && py == 0) return;
	109	if (!fZoomMode && fPad->GetView()) {
	110	fPad->GetView()->ExecuteRotateView(event, px, py);
	111	return;
	112	}
	113	fPad->SetCursor(kCross);
	114	switch (event) {
	115	case kButton1Down:
	116	fPad->TAttLine::Modify();
	117	fX0 = fPad->AbsPixeltoX(px);
	118	fY0 = fPad->AbsPixeltoY(py);
	119	fXPixel = fOldXPixel = px;
	120	fYPixel = fOldYPixel = py;
	121	fLineDrawn = kFALSE;
	122	return;
	123	case kButton1Motion:
	124	if (fLineDrawn)
	125	gVirtualX->DrawBox(fXPixel, fYPixel, fOldXPixel, fOldYPixel,
	126	TVirtualX::kHollow);
	127	fOldXPixel = px;
	128	fOldYPixel = py;
	129	fLineDrawn = kTRUE;
	130	gVirtualX->DrawBox(fXPixel, fYPixel, fOldXPixel, fOldYPixel,
	131	TVirtualX::kHollow);
	132	return;
	133	case kButton1Up:
	134	fPad->GetCanvas()->FeedbackMode(kFALSE);
	135	if (px == fXPixel \|\| py == fYPixel) return;
	136	fX1 = fPad->AbsPixeltoX(px);
	137	fY1 = fPad->AbsPixeltoY(py);
	138	if (fX1 < fX0) std::swap(fX0, fX1);
	139	if (fY1 < fY0) std::swap(fY0, fY1);
	140	fPad->Range(fX0, fY0, fX1, fY1);
	141	fPad->Modified();
	142	return;
	143	}
	144	}
	145
	146	//____________________________________________________________________
	147	Int_t
	148	AliFMDDisplay::DistancetoPrimitive(Int_t px, Int_t)
	149	{
	150	// AliInfo(Form("@ (%d,%d)", px, py));
	151	fPad->SetCursor(kCross);
	152	Float_t xmin = fPad->GetX1();
	153	Float_t xmax = fPad->GetX2();
	154	Float_t dx = .02 * (xmax - xmin);
	155	Float_t x = fPad->AbsPixeltoX(px);
	156	if (x < xmin + dx \|\| x > xmax - dx) return 9999;
	157	return (fZoomMode ? 0 : 7);
	158	}
	159	//____________________________________________________________________
	160	Bool_t
	161	AliFMDDisplay::Init()
	162	{
	163	// Initialize. GEt transforms and such,
	164	if (!AliFMDInput::Init()) return kFALSE;
	165	AliFMDGeometry* geom = AliFMDGeometry::Instance();
	166	geom->Init();
	167	geom->InitTransformations();
	168	// AliFMDParameters* parm = AliFMDParameters::Instance();
	169	// parm->Init();
	170	return kTRUE;
	171	}
	172	//____________________________________________________________________
	173	Bool_t
	174	AliFMDDisplay::Begin(Int_t event)
	175	{
	176	// Begin of event. Make canvas is not already done
	177	if (!fCanvas) {
	178	gStyle->SetPalette(1);
	179	fCanvas = new TCanvas("display", "Display", 700, 700);
	180	fCanvas->SetFillColor(1);
	181	fCanvas->ToggleEventStatus();
	182	fPad = new TPad("view3D", "3DView", 0.0, 0.05, 1.0, 1.0, 1, 0, 0);
	183	fCanvas->cd();
	184	fPad->Draw();
	185	}
	186	if (!fButton) {
	187	fCanvas->cd();
	188	fButton = new TButton("Continue", "AliFMDDisplay::Instance()->Continue()",
	189	0, 0, .5, .05);
	190	fButton->Draw();
	191	fZoom = new TButton("Zoom", "AliFMDDisplay::Instance()->Zoom()",
	192	.5, 0, .75, .05);
	193	fZoom->Draw();
	194	fPick = new TButton("Pick", "AliFMDDisplay::Instance()->Pick()",
	195	.75, 0, 1, .05);
	196	fPick->Draw();
	197	}
	198	AliInfo("Clearing canvas");
	199	// fCanvas->Clear();
	200	if (!fGeoManager) {
	201	Warning("End", "No geometry manager");
	202	return kFALSE;
	203	}
	204	AliInfo("Drawing geometry");
	205	fPad->cd();
	206	fGeoManager->GetTopVolume()->Draw();
	207	AliInfo("Adjusting view");
	208	Int_t irep;
	209	if (fPad->GetView()) {
	210	fPad->GetView()->SetView(-200, -40, 80, irep);
	211	fPad->GetView()->Zoom();
	212	fPad->Modified();
	213	fPad->cd();
	214	}
	215	return AliFMDInput::Begin(event);
	216	}
	217
	218	//____________________________________________________________________
	219	Bool_t
	220	AliFMDDisplay::End()
	221	{
	222	// End of event. Draw everything
	223	fPad->cd();
	224	fMarkers->Draw();
	225	fPad->cd();
	226	AppendPad();
	227	// fPad->Update();
	228	fPad->cd();
	229	// fCanvas->Modified(kTRUE);
	230	//fCanvas->Update();
	231	// fCanvas->cd();
	232	// fPad->cd();
	233	fWait = kTRUE;
	234	while (fWait) {
	235	gApplication->StartIdleing();
	236	gSystem->InnerLoop();
	237	gApplication->StopIdleing();
	238	}
	239	AliInfo("After idle loop");
	240	fMarkers->Delete();
	241	fHits->Clear();
	242	AliInfo("After clearing caches");
	243	return AliFMDInput::End();
	244	}
	245
	246	//____________________________________________________________________
	247	Int_t
	248	AliFMDDisplay::LookupColor(Float_t x, Float_t max) const
	249	{
	250	// Look-up color
	251	Int_t idx = Int_t(x / max * gStyle->GetNumberOfColors());
	252	return gStyle->GetColorPalette(idx);
	253	}
	254
	255	//____________________________________________________________________
	256	void
	257	AliFMDDisplay::AddMarker(UShort_t det, Char_t rng, UShort_t sec, UShort_t str,
	258	TObject* o, Float_t s, Float_t max)
	259	{
	260	// Add a marker to the display
	261	//
	262	// det Detector
	263	// rng Ring
	264	// sec Sector
	265	// str Strip
	266	// o Object to refer to
	267	// s Signal
	268	// max Maximum of signal
	269	//
	270	AliFMDGeometry* geom = AliFMDGeometry::Instance();
	271	Double_t x, y, z;
	272	geom->Detector2XYZ(det, rng, sec, str, x, y, z);
	273	Float_t size = .1;
	274	Float_t zsize = s / max * 10;
	275	Float_t r = TMath::Sqrt(x * x + y * y);
	276	Float_t theta = TMath::ATan2(r, z);
	277	Float_t phi = TMath::ATan2(y, x);
	278	Float_t rz = z + (z < 0 ? 1 : -1) * zsize;
	279	TMarker3DBox* marker = new TMarker3DBox(x,y,rz,size,size,zsize,theta,phi);
	280	if (o) marker->SetRefObject(o);
	281	marker->SetLineColor(LookupColor(s, max));
	282	fMarkers->Add(marker);
	283	}
	284
	285
	286	//____________________________________________________________________
	287	Bool_t
	288	AliFMDDisplay::ProcessHit(AliFMDHit* hit, TParticle* p)
	289	{
	290	// Process a hit
	291	if (!hit) { AliError("No hit"); return kFALSE; }
	292	if (!p) { AliError("No track"); return kFALSE; }
	293
	294	fHits->Add(hit);
	295	Float_t size = .1;
	296	Float_t zsize = hit->Edep() * 10;
	297	Float_t z = hit->Z() + (hit->Z() < 0 ? 1 : -1) * zsize;
	298	Float_t pt = TMath::Sqrt(hit->Py()hit->Py()+hit->Px()hit->Px());
	299	Float_t theta = TMath::ATan2(pt, hit->Pz());
	300	Float_t phi = TMath::ATan2(hit->Py(), hit->Px());
	301	TMarker3DBox* marker = new TMarker3DBox(hit->X(), hit->Y(), z,
	302	size, size, zsize, theta, phi);
	303	marker->SetLineColor(LookupColor(hit->Edep(), 1));
	304	marker->SetRefObject(hit);
	305	fMarkers->Add(marker);
	306	return kTRUE;
	307	}
	308
	309	//____________________________________________________________________
	310	Bool_t
	311	AliFMDDisplay::ProcessDigit(AliFMDDigit* digit)
	312	{
	313	// Process a digit
	314	if (!digit) { AliError("No digit"); return kFALSE; }
	315
	316	AliFMDParameters* parm = AliFMDParameters::Instance();
	317	UShort_t det = digit->Detector();
	318	Char_t ring = digit->Ring();
	319	UShort_t sec = digit->Sector();
	320	UShort_t str = digit->Strip();
	321	Double_t ped = parm->GetPedestal(det,ring, sec, str);
	322	Double_t pedW = parm->GetPedestalWidth(det,ring, sec, str);
	323	Double_t threshold = ped * fPedestalFactor * pedW;
	324	Float_t counts = digit->Counts();
	325	if (counts < threshold) return kTRUE;
	326	fHits->Add(digit);
	327
	328	AddMarker(det, ring, sec, str, digit, counts, 1024);
	329	return kTRUE;
	330	}
	331
	332	//____________________________________________________________________
	333	Bool_t
	334	AliFMDDisplay::ProcessRaw(AliFMDDigit* digit)
	335	{
	336	// PRocess raw data
	337	return ProcessDigit(digit);
	338	}
	339
	340	//____________________________________________________________________
	341	Bool_t
	342	AliFMDDisplay::ProcessRecPoint(AliFMDRecPoint* recpoint)
	343	{
	344	// Process reconstructed point
	345	if (!recpoint) { AliError("No recpoint"); return kFALSE; }
	346	if (recpoint->Particles() < fMultCut) return kTRUE;
	347	fHits->Add(recpoint);
	348	AddMarker(recpoint->Detector(), recpoint->Ring(), recpoint->Sector(),
	349	recpoint->Strip(), recpoint, recpoint->Particles(), 20);
	350	return kTRUE;
	351	}
	352
	353	//____________________________________________________________________
	354	Bool_t
	355	AliFMDDisplay::ProcessESD(AliESDFMD* esd)
	356	{
	357	// Process event summary data
	358	for (UShort_t det = 1; det <= 3; det++) {
	359	Char_t rings[] = { 'I', (det == 1 ? '\0' : 'O'), '\0' };
	360	for (Char_t* rng = rings; *rng != '\0'; rng++) {
	361	UShort_t nsec = (*rng == 'I' ? 20 : 40);
	362	UShort_t nstr = (*rng == 'O' ? 512 : 256);
	363	for (UShort_t sec = 0; sec < nsec; sec++) {
	364	for (UShort_t str = 0; str < nstr; str++) {
	365	Float_t mult = esd->Multiplicity(det,*rng,sec,str);
	366	if (mult < fMultCut) continue;
	367	AddMarker(det,*rng,sec,str, 0, mult, 20);
	368	}
	369	}
	370	}
	371	}
	372	return kTRUE;
	373	}
	374
	375	//____________________________________________________________________
	376	//
	377	// EOF
	378	//