///////////////////////////////////////////////////////////////////////////////
// //
// This class contains the points for the ALICE event display //
// //
//Begin_Html
/*
*/
//End_Html
// //
// //
///////////////////////////////////////////////////////////////////////////////
#include "AliMUONdisplay.h"
#include "AliMUONpoints.h"
#include "AliRun.h"
#include "TPad.h"
#include "TView.h"
#include "TMath.h"
const Int_t MAX_Nipx=400, MAX_Nipy=800;
ClassImp(AliMUONpoints)
//_____________________________________________________________________________
AliMUONpoints::AliMUONpoints()
{
//
// Default constructor
//
fHitIndex = 0;
fTrackIndex = 0;
fDigitIndex = 0;
}
//_____________________________________________________________________________
AliMUONpoints::AliMUONpoints(Int_t npoints)
:AliPoints(npoints)
{
//
// Standard constructor
//
fHitIndex = 0;
fTrackIndex = 0;
fDigitIndex = 0;
}
//_____________________________________________________________________________
AliMUONpoints::~AliMUONpoints()
{
//
// Default destructor
//
fHitIndex = 0;
fTrackIndex = 0;
fDigitIndex = 0;
}
//_____________________________________________________________________________
void AliMUONpoints::DumpHit()
{
//
// Dump hit corresponding to this point
//
AliMUONhit *hit = GetHit();
if (hit) hit->Dump();
}
//_____________________________________________________________________________
void AliMUONpoints::DumpDigit()
{
//
// Dump digit corresponding to this point
//
AliMUONdigit *digit = GetDigit();
if (digit) digit->Dump();
}
//_____________________________________________________________________________
void AliMUONpoints::InspectHit()
{
//
// Inspect hit corresponding to this point
//
AliMUONhit *hit = GetHit();
if (hit) hit->Inspect();
}
//_____________________________________________________________________________
void AliMUONpoints::InspectDigit()
{
//
// Inspect digit corresponding to this point
//
AliMUONdigit *digit = GetDigit();
if (digit) digit->Inspect();
}
//_____________________________________________________________________________
Int_t AliMUONpoints::GetTrackIndex()
{
//
// Dump digit corresponding to this point
//
printf("GetTrackIndex - fTrackIndex %d \n",fTrackIndex);
this->Inspect();
return fTrackIndex;
}
//_____________________________________________________________________________
AliMUONhit *AliMUONpoints::GetHit() const
{
//
// Returns pointer to hit index in AliRun::fParticles
//
AliMUON *MUON = (AliMUON*)gAlice->GetModule("MUON");
gAlice->TreeH()->GetEvent(fTrackIndex);
TClonesArray *MUONhits = MUON->Hits();
Int_t nhits = MUONhits->GetEntriesFast();
if (fHitIndex < 0 || fHitIndex >= nhits) return 0;
return (AliMUONhit*)MUONhits->UncheckedAt(fHitIndex);
}
//_____________________________________________________________________________
AliMUONdigit *AliMUONpoints::GetDigit() const
{
//
// Returns pointer to digit index in AliRun::fParticles
//
AliMUONdisplay *display=(AliMUONdisplay*)gAlice->Display();
Int_t chamber=display->GetChamber();
Int_t cathode=display->GetCathode();
AliMUON *MUON = (AliMUON*)gAlice->GetModule("MUON");
TClonesArray *MUONdigits = MUON->DigitsAddress(chamber-1);
gAlice->TreeD()->GetEvent(cathode);
Int_t ndigits = MUONdigits->GetEntriesFast();
if (fDigitIndex < 0 || fDigitIndex >= ndigits) return 0;
return (AliMUONdigit*)MUONdigits->UncheckedAt(fDigitIndex);
}
//_____________________________________________________________________________
struct Bin {
const AliMUONdigit *dig;
int idx;
Bin() {dig=0; idx=-1;}
};
struct PreCluster : public AliMUONreccluster {
const AliMUONdigit* summit;
int idx;
int cut;
int npeaks;
PreCluster() : AliMUONreccluster() {cut=npeaks=0;}
};
//_____________________________________________________________________________
static void FindCluster(AliMUONchamber *iChamber, AliMUONsegmentation *segmentation, int i, int j, Bin bins[MAX_Nipx][MAX_Nipy], PreCluster &c)
{
//
// Find clusters
//
printf("I'm in FindCluster \n");
Bin& b=bins[i][j];
Int_t q=b.dig->fSignal;
printf("FindCluster - i j q %d %d %d\n",i,j,q);
if (q<0) {
q=-q;
c.cut=1;
}
if (b.idx >= 0 && b.idx != c.idx) {
c.idx=b.idx;
c.npeaks++;
}
if (q > TMath::Abs(c.summit->fSignal)) c.summit=b.dig;
Int_t npx = segmentation->Npx();
Int_t npy = segmentation->Npy();
Float_t x,y;
segmentation->GetPadCxy(i-npx, j-npy, x,y);
printf("FindCluster - x y %f %f \n",x,y);
c.fX += q*x;
c.fY += q*y;
c.fQ += q;
b.dig = 0; b.idx = c.idx;
if (bins[i-1][j].dig) FindCluster(iChamber,segmentation,i-1,j,bins,c);
if (bins[i][j-1].dig) FindCluster(iChamber,segmentation,i,j-1,bins,c);
if (bins[i+1][j].dig) FindCluster(iChamber,segmentation,i+1,j,bins,c);
if (bins[i][j+1].dig) FindCluster(iChamber,segmentation,i,j+1,bins,c);
}
//_____________________________________________________________________________
void AliMUONpoints::GetCenterOfGravity()
{
//
// simple MUON cluster finder from digits -- finds neighbours and
// calculates center of gravity for the cluster
//
const Int_t MAX_Nipx=400, MAX_Nipy=800;
printf("\n Hallo world");
AliMUONdisplay *display=(AliMUONdisplay*)gAlice->Display();
Int_t chamber=display->GetChamber();
Int_t cathode=display->GetCathode();
AliMUON *MUON = (AliMUON*)gAlice->GetModule("MUON");
AliMUONchamber *iChamber;
AliMUONsegmentation *segmentation;
iChamber =&(MUON->Chamber(chamber-1));
segmentation=iChamber->GetSegmentationModel(cathode);
Int_t npx = segmentation->Npx();
Int_t npy = segmentation->Npy();
Float_t zpos=iChamber->ZPosition();
TClonesArray *MUONdigits = MUON->DigitsAddress(chamber-1);
gAlice->TreeD()->GetEvent(cathode);
Int_t ndigits = MUONdigits->GetEntriesFast();
if (fDigitIndex < 0 || fDigitIndex >= ndigits) return;
AliMUONdigit *dig;
dig=(AliMUONdigit*)MUONdigits->UncheckedAt(fDigitIndex);
Int_t ipx=dig->fPadX;
Int_t ipy=dig->fPadY;
Bin bins[MAX_Nipx][MAX_Nipy];
bins[ipx+npx][ipy+npy].dig=dig;
int ndig;
int ncls=0;
for (ndig=0; ndigUncheckedAt(ndig);
int i=dig->fPadX, j=dig->fPadY;
bins[i+npx][j+npy].dig=dig;
}
PreCluster c; c.summit=bins[ipx+npx][ipy+npy].dig; c.idx=ncls;
FindCluster(iChamber,segmentation,ipx+npx, ipy+npy, bins, c);
if (c.npeaks>1) {
printf("GetCenterOfGravity -- more than one peak");
}
c.fX /= c.fQ;
c.fY /= c.fQ;
printf("GetCenterOfGravity - c.fX c.fY c.fQ %f %f %d \n",c.fX,c.fY,c.fQ);
c.fTracks[0]=c.summit->fTracks[0];
c.fTracks[1]=c.summit->fTracks[1];
c.fTracks[2]=c.summit->fTracks[2];
ncls++;
AliMUONpoints *points = 0;
points = new AliMUONpoints(1);
points->SetMarkerColor(kYellow);
points->SetMarkerStyle(5);
points->SetMarkerSize(1.);
points->SetPoint(0,c.fX,c.fY,zpos);
points->Draw();
printf("GetCenterOfGravity -- ncls %d \n",ncls);
}