* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.10 1999/09/29 09:24:35 fca
-Introduction of the Copyright and cvs Log
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
-// Transition Radiation Detector version 0 -- coarse simulation //
+// Transition Radiation Detector version 0 -- fast simulator //
// //
//Begin_Html
/*
-<img src="picts/AliTRDv0Class.gif">
+<img src="picts/AliTRDfullClass.gif">
*/
//End_Html
// //
// //
///////////////////////////////////////////////////////////////////////////////
-#include <stdlib.h>
+#include <stdlib.h>
+#include <TLorentzVector.h>
#include <TMath.h>
#include <TRandom.h>
-#include <TVector.h>
+#include <TVector.h>
+#include <TVirtualMC.h>
-#include "AliTRDv0.h"
+#include "AliConst.h"
#include "AliRun.h"
+#include "AliTRDgeometry.h"
+#include "AliTRDhit.h"
+#include "AliTRDv0.h"
#include "AliMC.h"
-#include "AliConst.h"
-
+
ClassImp(AliTRDv0)
+
+//_____________________________________________________________________________
+AliTRDv0::AliTRDv0():AliTRD()
+{
+ //
+ // AliTRDv0 default constructor
+ //
+
+ fHitsOn = 0;
+
+}
//_____________________________________________________________________________
AliTRDv0::AliTRDv0(const char *name, const char *title)
// Standard constructor for Transition Radiation Detector version 0
//
- fIdSens = 0;
fHitsOn = 0;
- fIdSpace1 = 0;
- fIdSpace2 = 0;
- fIdSpace3 = 0;
+}
- fIdChamber1 = 0;
- fIdChamber2 = 0;
- fIdChamber3 = 0;
+//_____________________________________________________________________________
+AliTRDv0::~AliTRDv0()
+{
+ //
+ // AliTRDv0 destructor
+ //
}
-
+
//_____________________________________________________________________________
void AliTRDv0::CreateGeometry()
{
// Create the GEANT geometry for the Transition Radiation Detector - Version 0
// This version covers the full azimuth.
//
- // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
- //
-
- Float_t xpos, ypos, zpos;
// Check that FRAME is there otherwise we have no place where to put the TRD
- AliModule* FRAME = gAlice->GetModule("FRAME");
- if (!FRAME) return;
+ AliModule* frame = gAlice->GetModule("FRAME");
+ if (!frame) return;
// Define the chambers
AliTRD::CreateGeometry();
- // Position the the TRD-sectors in all TRD-volumes in the spaceframe
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("TRD ",1,"BTR1",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("TRD ",2,"BTR2",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("TRD ",3,"BTR3",xpos,ypos,zpos,0,"ONLY");
-
}
//_____________________________________________________________________________
void AliTRDv0::Init()
{
//
- // Initialise Transition Radiation Detector after geometry is built
+ // Initialize Transition Radiation Detector after geometry is built
//
AliTRD::Init();
- printf("**************************************"
- " TRD "
- "**************************************\n");
- printf("\n Version 0 of TRD initialing, "
- "symmetric TRD\n\n");
-
- //
- // Check that FRAME is there otherwise we have no place where to
- // put TRD
- AliModule* FRAME=gAlice->GetModule("FRAME");
- if(!FRAME) {
- Error("Ctor","TRD needs FRAME to be present\n");
- exit(1);
- } else
- if(FRAME->IsVersion()!=1) {
- Error("Ctor","FRAME version 1 needed with this version of TRD\n");
- exit(1);
- }
-
+ printf(" Fast simulator\n\n");
for (Int_t i = 0; i < 80; i++) printf("*");
printf("\n");
- // Identifier of the sensitive volume (amplification region)
- fIdSens = gMC->VolId("UL06");
-
- // Identifier of the TRD-spaceframe volumina
- fIdSpace1 = gMC->VolId("B028");
- fIdSpace2 = gMC->VolId("B029");
- fIdSpace3 = gMC->VolId("B030");
-
- // Identifier of the TRD-driftchambers
- fIdChamber1 = gMC->VolId("UCIO");
- fIdChamber2 = gMC->VolId("UCIM");
- fIdChamber3 = gMC->VolId("UCII");
-
- printf("**************************************"
- " TRD "
- "**************************************\n");
}
//_____________________________________________________________________________
// crosses the border between amplification region and pad plane.
//
- Int_t vol[3];
- Int_t iIdSens, icSens;
- Int_t iIdSpace, icSpace;
- Int_t iIdChamber, icChamber;
+ Int_t pla = 0;
+ Int_t cha = 0;
+ Int_t sec = 0;
- Int_t secMap1[10] = { 3, 7, 8, 9, 10, 11, 2, 1, 18, 17 };
- Int_t secMap2[ 5] = { 16, 15, 14, 13, 12 };
- Int_t secMap3[ 3] = { 5, 6, 4 };
-
- Float_t hits[4];
+ Float_t hits[3];
+ Int_t det;
TLorentzVector p;
- TClonesArray &lhits = *fHits;
+
+ // Use pad plane as sensitive volume
+ TString cIdSens = "L";
+ TString cIdCurrent;
+ Char_t cIdChamber[3];
+ cIdChamber[2] = 0;
+
+ const Int_t kNplan = AliTRDgeometry::Nplan();
// Writing out hits enabled?
if (!(fHitsOn)) return;
// Use only charged tracks and count them only once per volume
if (gMC->TrackCharge() &&
- gMC->IsTrackExiting()) {
+ gMC->IsTrackEntering()) {
// Check on sensitive volume
- iIdSens = gMC->CurrentVolID(icSens);
- if (iIdSens == fIdSens) {
+ cIdCurrent = gMC->CurrentVolName();
+ if (cIdSens == cIdCurrent[1]) {
gMC->TrackPosition(p);
for (Int_t i = 0; i < 3; i++) hits[i] = p[i];
- // No charge created
- hits[3] = 0;
-
- iIdSpace = gMC->CurrentVolOffID(4,icSpace );
- iIdChamber = gMC->CurrentVolOffID(1,icChamber);
-
- // The sector number
- if (iIdSpace == fIdSpace1)
- vol[0] = secMap1[icSpace-1];
- else if (iIdSpace == fIdSpace2)
- vol[0] = secMap2[icSpace-1];
- else if (iIdSpace == fIdSpace3)
- vol[0] = secMap3[icSpace-1];
-
- // The chamber number
- // 1: outer left
- // 2: middle left
- // 3: inner
- // 4: middle right
- // 5: outer right
- if (iIdChamber == fIdChamber1)
- vol[1] = (hits[2] < 0 ? 1 : 5);
- else if (iIdChamber == fIdChamber2)
- vol[1] = (hits[2] < 0 ? 2 : 4);
- else if (iIdChamber == fIdChamber3)
- vol[1] = 3;
-
- // The plane number
- vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
-
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
+
+ // The sector number (0 - 17)
+ // The numbering goes clockwise and starts at y = 0
+ Float_t phi = kRaddeg*TMath::ATan2(hits[0],hits[1]);
+ if (phi < 90.)
+ phi = phi + 270.;
+ else
+ phi = phi - 90.;
+ sec = ((Int_t) (phi / 20));
+
+ // The plane and chamber number
+ cIdChamber[0] = cIdCurrent[2];
+ cIdChamber[1] = cIdCurrent[3];
+ Int_t idChamber = atoi(cIdChamber);
+ cha = ((Int_t) idChamber / kNplan);
+ pla = ((Int_t) idChamber % kNplan);
+ det = fGeometry->GetDetector(pla,cha,sec);
+
+ AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),det,hits,0,kTRUE);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff