///////////////////////////////////////////////////////////////////////////////
// //
// Base class for ALICE modules. Both sensitive modules (detectors) and //
// non-sensitive ones are described by this base class. This class //
// supports the hit and digit trees produced by the simulation and also //
// the objects produced by the reconstruction. //
// //
// This class is also responsible for building the geometry of the //
// detectors. //
// //
//Begin_Html
/*
*/
//End_Html
// //
///////////////////////////////////////////////////////////////////////////////
#include "AliDetector.h"
#include "AliRun.h"
#include "AliHit.h"
#include "AliPoints.h"
#include
#include
#include
// Static variables for the hit iterator routines
static Int_t sMaxIterHit=0;
static Int_t sCurIterHit=0;
ClassImp(AliDetector)
//_____________________________________________________________________________
AliDetector::AliDetector()
{
//
// Default constructor for the AliDetector class
//
fNhits = 0;
fNdigits = 0;
fPoints = 0;
fHits = 0;
fDigits = 0;
fTimeGate = 200.e-9;
fBufferSize = 16000;
}
//_____________________________________________________________________________
AliDetector::AliDetector(const char* name,const char *title):AliModule(name,title)
{
//
// Normal constructor invoked by all Detectors.
// Create the list for detector specific histograms
// Add this Detector to the global list of Detectors in Run.
//
fTimeGate = 200.e-9;
fActive = kTRUE;
fNhits = 0;
fHits = 0;
fDigits = 0;
fNdigits = 0;
fPoints = 0;
fBufferSize = 16000;
}
//_____________________________________________________________________________
AliDetector::~AliDetector()
{
//
// Destructor
//
fNhits = 0;
fNdigits = 0;
//
// Delete space point structure
if (fPoints) fPoints->Delete();
delete fPoints;
fPoints = 0;
}
//_____________________________________________________________________________
void AliDetector::Browse(TBrowser *b)
{
//
// Insert Detector objects in the list of objects to be browsed
//
char name[64];
if( fHits == 0) return;
TObject *obj;
Int_t i, nobjects;
//
nobjects = fHits->GetEntries();
for (i=0;iAt(i);
sprintf(name,"%s_%d",obj->GetName(),i);
b->Add(obj, &name[0]);
}
}
//_____________________________________________________________________________
void AliDetector::FinishRun()
{
//
// Procedure called at the end of a run.
//
}
//_____________________________________________________________________________
AliHit* AliDetector::FirstHit(Int_t track)
{
//
// Initialise the hit iterator
// Return the address of the first hit for track
// If track>=0 the track is read from disk
// while if track<0 the first hit of the current
// track is returned
//
if(track>=0) {
gAlice->ResetHits();
gAlice->TreeH()->GetEvent(track);
}
//
sMaxIterHit=fHits->GetEntriesFast();
sCurIterHit=0;
if(sMaxIterHit) return (AliHit*) fHits->UncheckedAt(0);
else return 0;
}
//_____________________________________________________________________________
AliHit* AliDetector::NextHit()
{
//
// Return the next hit for the current track
//
if(sMaxIterHit) {
if(++sCurIterHitUncheckedAt(sCurIterHit);
else
return 0;
} else {
printf("* AliDetector::NextHit * Hit Iterator called without calling FistHit before\n");
return 0;
}
}
//_____________________________________________________________________________
void AliDetector::LoadPoints(Int_t)
{
//
// Store x, y, z of all hits in memory
//
if (fHits == 0) return;
//
if (fPoints == 0) fPoints = new TObjArray(gAlice->GetNtrack());
Int_t nhits = fHits->GetEntriesFast();
if (nhits == 0) return;
AliHit *ahit;
//
AliPoints *points = 0;
Int_t trko=-99, trk;
//
// Loop over all the hits and store their position
for (Int_t hit=0;hitUncheckedAt(hit);
if(trko!=(trk=ahit->GetTrack())) {
//
// Initialise a new track
trko=trk;
points = new AliPoints(nhits);
fPoints->AddAt(points,trk);
points->SetMarkerColor(GetMarkerColor());
points->SetMarkerStyle(GetMarkerStyle());
points->SetMarkerSize(GetMarkerSize());
points->SetDetector(this);
points->SetParticle(trk);
}
points->SetPoint(hit,ahit->fX,ahit->fY,ahit->fZ);
}
}
//_____________________________________________________________________________
void AliDetector::MakeBranch(Option_t *option)
{
//
// Create a new branch in the current Root Tree
// The branch of fHits is automatically split
//
char branchname[10];
sprintf(branchname,"%s",GetName());
//
// Get the pointer to the header
char *H = strstr(option,"H");
//
if (fHits && gAlice->TreeH() && H) {
gAlice->TreeH()->Branch(branchname,&fHits, fBufferSize);
printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
}
}
//_____________________________________________________________________________
void AliDetector::ResetDigits()
{
//
// Reset number of digits and the digits array
//
fNdigits = 0;
if (fDigits) fDigits->Clear();
}
//_____________________________________________________________________________
void AliDetector::ResetHits()
{
//
// Reset number of hits and the hits array
//
fNhits = 0;
if (fHits) fHits->Clear();
}
//_____________________________________________________________________________
void AliDetector::ResetPoints()
{
//
// Reset array of points
//
if (fPoints) {
fPoints->Delete();
delete fPoints;
fPoints = 0;
}
}
//_____________________________________________________________________________
void AliDetector::SetTreeAddress()
{
//
// Set branch address for the Hits and Digits Trees
//
TBranch *branch;
char branchname[20];
sprintf(branchname,"%s",GetName());
//
// Branch address for hit tree
TTree *treeH = gAlice->TreeH();
if (treeH && fHits) {
branch = treeH->GetBranch(branchname);
if (branch) branch->SetAddress(&fHits);
}
//
// Branch address for digit tree
TTree *treeD = gAlice->TreeD();
if (treeD && fDigits) {
branch = treeD->GetBranch(branchname);
if (branch) branch->SetAddress(&fDigits);
}
}
//_____________________________________________________________________________
void AliDetector::Streamer(TBuffer &R__b)
{
//
// Stream an object of class Detector.
//
if (R__b.IsReading()) {
Version_t R__v = R__b.ReadVersion(); if (R__v) { }
TNamed::Streamer(R__b);
TAttLine::Streamer(R__b);
TAttMarker::Streamer(R__b);
AliModule::Streamer(R__b);
R__b >> fTimeGate;
R__b >> fIshunt;
//R__b >> fNhits;
//
// Stream the pointers but not the TClonesArrays
R__b >> fHits; // diff
R__b >> fDigits; // diff
} else {
R__b.WriteVersion(AliDetector::IsA());
TNamed::Streamer(R__b);
TAttLine::Streamer(R__b);
TAttMarker::Streamer(R__b);
AliModule::Streamer(R__b);
R__b << fTimeGate;
R__b << fIshunt;
//R__b << fNhits;
//
// Stream the pointers but not the TClonesArrays
R__b << fHits; // diff
R__b << fDigits; // diff
}
}