/*
$Log$
+Revision 1.13.4.1 2000/02/28 18:01:53 cblume
+Change to new hit version and introduce geometry class
+
+Revision 1.13 1999/11/05 22:50:28 fca
+Do not use Atan, removed from ROOT too
+
+Revision 1.12 1999/11/02 16:35:56 fca
+New version of TRD introduced
+
+Revision 1.11 1999/11/01 20:41:51 fca
+Added protections against using the wrong version of FRAME
+
+Revision 1.10 1999/09/29 09:24:35 fca
+Introduction of the Copyright and cvs Log
+
*/
///////////////////////////////////////////////////////////////////////////////
// //
-// 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 <TRandom.h>
#include <TVector.h>
-#include "AliTRDv0.h"
#include "AliRun.h"
#include "AliMC.h"
#include "AliConst.h"
-ClassImp(AliTRDv0)
+#include "AliTRDv0.h"
+#include "AliTRDgeometry.h"
+ClassImp(AliTRDv0)
+
//_____________________________________________________________________________
AliTRDv0::AliTRDv0(const char *name, const char *title)
:AliTRD(name, title)
fIdSens = 0;
fHitsOn = 0;
- fIdSpace1 = 0;
- fIdSpace2 = 0;
- fIdSpace3 = 0;
-
fIdChamber1 = 0;
fIdChamber2 = 0;
fIdChamber3 = 0;
}
-
+
//_____________________________________________________________________________
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");
// 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();
- 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(" Fast simulator\n\n");
+ for (Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
+
}
//_____________________________________________________________________________
// crosses the border between amplification region and pad plane.
//
- Int_t vol[3];
+ Int_t pla = 0;
+ Int_t cha = 0;
+ Int_t sec = 0;
Int_t iIdSens, icSens;
- Int_t iIdSpace, icSpace;
Int_t iIdChamber, icChamber;
- 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];
TLorentzVector p;
// 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 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 chamber number
- // 1: outer left
- // 2: middle left
- // 3: inner
- // 4: middle right
- // 5: outer right
+ // 0: outer left
+ // 1: middle left
+ // 2: inner
+ // 3: middle right
+ // 4: outer right
+ iIdChamber = gMC->CurrentVolOffID(1,icChamber);
if (iIdChamber == fIdChamber1)
- vol[1] = (hits[2] < 0 ? 1 : 5);
+ cha = (hits[2] < 0 ? 0 : 4);
else if (iIdChamber == fIdChamber2)
- vol[1] = (hits[2] < 0 ? 2 : 4);
+ cha = (hits[2] < 0 ? 1 : 3);
else if (iIdChamber == fIdChamber3)
- vol[1] = 3;
+ cha = 2;
- // The plane number
- vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
+ // The plane number (0 - 5)
+ pla = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6 - 1;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
+ new(lhits[fNhits++]) AliTRDhit(fIshunt
+ ,gAlice->CurrentTrack()
+ ,fGeometry->GetDetector(pla,cha,sec)
+ ,hits);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff