//
// Forward Multiplicity Detector based on Silicon wafers. This class
// contains the base procedures for the Forward Multiplicity detector
-// Detector consists of 5 Si volumes covered pseudorapidity interval
-// from 1.7 to 5.1.
-//
+// Detector consists of 3 sub-detectors FMD1, FMD2, and FMD3, each of
+// which has 1 or 2 rings of silicon sensors.
+//
// This class contains the detailed version of the FMD - that is, hits
// are produced during simulation.
//
-// The actual code is done by various separate classes. Below is
-// diagram showing the relationship between the various FMD classes
-// that handles the geometry
-//
-//
-// +----------+ +----------+
-// | AliFMDv1 | | AliFMDv1 |
-// +----------+ +----------+
-// | |
-// +----+--------------+
-// |
-// | +------------+ 1 +---------------+
-// | +- | AliFMDRing |<>--| AliFMDPolygon |
-// V 2 | +------------+ +---------------+
-// +--------+<>--+ |
-// | AliFMD | ^
-// +--------+<>--+ V 1..2
-// 3 | +-------------------+
-// +-| AliFMDSubDetector |
-// +-------------------+
-// ^
-// |
-// +-------------+-------------+
-// | | |
-// +---------+ +---------+ +---------+
-// | AliFMD1 | | AliFMD2 | | AliFMD3 |
-// +---------+ +---------+ +---------+
-//
-//
// See also the class AliFMD for a more detailed explanation of the
// various componets.
-#ifndef ROOT_TVirtualMC
-# include <TVirtualMC.h>
-#endif
-#ifndef ALIFMDV1_H
-# include "AliFMDv1.h"
-#endif
-#ifndef ALIRUN_H
-# include "AliRun.h"
-#endif
-#ifndef ALIMC_H
-# include "AliMC.h"
-#endif
-#ifndef ALILOG_H
-# include "AliLog.h"
-#endif
+//
+#include <TVirtualMC.h> // ROOT_TVirtualMC
+#include <AliRun.h> // ALIRUN_H
+#include <AliMC.h> // ALIMC_H
+#include <AliLog.h> // ALILOG_H
+#include "AliFMDv1.h" // ALIFMDV1_H
+#include "AliFMDSimulator.h" // ALIFMDSIMULATOR_H
+#include "AliFMDG3Simulator.h" // ALIFMDG3SIMULATOR_H
+#include "AliFMDGeoSimulator.h" // ALIFMDGEOSIMULATOR_H
//____________________________________________________________________
-ClassImp(AliFMDv1);
+ClassImp(AliFMDv1)
+#if 0
+ ; // This is here to keep Emacs for indenting the next line
+#endif
//____________________________________________________________________
void
AliFMDv1::StepManager()
{
- //
// Called for every step in the Forward Multiplicity Detector
//
- // The procedure is as follows:
+ // The message is deligated to AliFMDSimulator::Exec
//
- // - IF NOT track is alive THEN RETURN ENDIF
- // - IF NOT particle is charged THEN RETURN ENDIF
- // - IF NOT volume name is "STRI" or "STRO" THEN RETURN ENDIF
- // - Get strip number (volume copy # minus 1)
- // - Get phi division number (mother volume copy #)
- // - Get module number (grand-mother volume copy #)
- // - section # = 2 * module # + phi division # - 1
- // - Get ring Id from volume name
- // - Get detector # from grand-grand-grand-mother volume name
- // - Get pointer to sub-detector object.
- // - Get track position
- // - IF track is entering volume AND track is inside real shape THEN
- // - Reset energy deposited
- // - Get track momentum
- // - Get particle ID #
- /// - ENDIF
- // - IF track is inside volume AND inside real shape THEN
- /// - Update energy deposited
- // - ENDIF
- // - IF track is inside real shape AND (track is leaving volume,
- // or it died, or it is stopped THEN
- // - Create a hit
- // - ENDIF
- //
- //
- // DebugGuard guard("AliFMDv1::StepManager");
- AliDebug(10, "AliFMDv1::StepManager");
- // return;
-
- // If the track is gone, return
- if (!gMC->IsTrackAlive()) return;
-
- // Only process charged particles
- if(TMath::Abs(gMC->TrackCharge()) <= 0) return;
-
- // Only do stuff is the track is in one of the strips.
- TString vol(gMC->CurrentVolName());
- if (!vol.Contains("STR")) return;
-
-
- // Get the strip number. Note, that GEANT numbers divisions from 1,
- // so we subtract one
- Int_t strip;
- gMC->CurrentVolID(strip);
- strip--;
-
- // Get the phi division of the module
- Int_t phiDiv; // * The phi division number (1 or 2)
- gMC->CurrentVolOffID(1, phiDiv); // in the module
-
- // Active volume number - not used.
- // Int_t active;
- // gMC->CurrentVolOffID(2, active);
-
- // Get the module number in the ring.
- Int_t module;
- gMC->CurrentVolOffID(3, module);
-
- // Ring copy number - the same as the detector number - not used
- // Int_t ringCopy; // * Ring copy number
- // gMC->CurrentVolOffID(4, ringCopy); // Same as detector number
-
- // Get the detector number from the path name
- Int_t detector = Int_t((gMC->CurrentVolOffName(5)[3]) - 48);
-
- // The sector number, calculated from module and phi division #
- Int_t sector = 2 * module + phiDiv - 1;
-
- // The ring ID is encoded in the volume name
- Char_t ring = vol[3];
-
- // Get a pointer to the sub detector structure
- AliFMDSubDetector* det = 0;
- switch (detector) {
- case 1: det = fFMD1; break;
- case 2: det = fFMD2; break;
- case 3: det = fFMD3; break;
- }
- if (!det) return;
-
- // Get the current track position
- TLorentzVector v;
- gMC->TrackPosition(v);
- // Check that the track is actually within the active area
- Bool_t isWithin = det->CheckHit(ring, module, v.X(), v.Y());
- Bool_t entering = gMC->IsTrackEntering() && isWithin;
- Bool_t inside = gMC->IsTrackInside() && isWithin;
- Bool_t out = (gMC->IsTrackExiting()
- || gMC->IsTrackDisappeared()
- || gMC->IsTrackStop()
- || !isWithin);
-// Reset the energy deposition for this track, and update some of
- // our parameters.
- if (entering) {
- fCurrentDeltaE = 0;
-
- // Get production vertex and momentum of the track
- fCurrentV = v;
- gMC->TrackMomentum(fCurrentP);
- fCurrentPdg = gMC->IdFromPDG(gMC->TrackPid());
-
- // if (fAnalyser)
- // fAnalyser->Update(detector, ring, isWithin, v.X(), v.Y());
- }
-
- // If the track is inside, then update the energy deposition
- if (inside && fCurrentDeltaE >= 0)
- fCurrentDeltaE += 1000 * gMC->Edep();
-
- // The track exits the volume, or it disappeared in the volume, or
- // the track is stopped because it no longer fulfills the cuts
- // defined, then we create a hit.
- if (out && fCurrentDeltaE >= 0) {
- fCurrentDeltaE += 1000 * gMC->Edep();
-
- AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),
- detector, ring, sector, strip,
- fCurrentV.X(), fCurrentV.Y(), fCurrentV.Z(),
- fCurrentP.X(), fCurrentP.Y(), fCurrentP.Z(),
- fCurrentDeltaE, fCurrentPdg, fCurrentV.T());
- fCurrentDeltaE = -1;
+ if (!fSimulator) {
+ AliFatal("No simulator object made");
+ return;
}
+ fSimulator->Exec("");
}
//___________________________________________________________________
//
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff