/* $Id$ */
/////////////////////////////////////////////////////////
-// Manager and hits classes for set:MUON version 0 //
+// Manager and hits classes for set:MUON version 1 //
/////////////////////////////////////////////////////////
+
#include <TRandom.h>
#include <TF1.h>
#include <TClonesArray.h>
-#include <TLorentzVector.h>
+#include <TLorentzVector.h>
+#include <TNode.h>
+#include <TRandom.h>
+#include <TTUBE.h>
+#include <TGeoMatrix.h>
#include <TVirtualMC.h>
#include <TParticle.h>
#include "AliMUONHit.h"
#include "AliMUONTriggerCircuit.h"
#include "AliMUONv1.h"
+#include "AliMUONVGeometryBuilder.h"
+#include "AliMUONChamberGeometry.h"
+#include "AliMUONGeometryEnvelope.h"
+#include "AliMUONGeometryConstituent.h"
#include "AliMagF.h"
#include "AliRun.h"
#include "AliMC.h"
//___________________________________________
AliMUONv1::AliMUONv1() : AliMUON()
- ,fTrackMomentum(), fTrackPosition()
+ ,fTrackMomentum(), fTrackPosition(),fGlobalTransformation(0)
{
// Constructor
fChambers = 0;
- fStations = 0;
fStepManagerVersionOld = kFALSE;
fAngleEffect = kTRUE;
fStepMaxInActiveGas = 0.6;
{
// Constructor
// By default include all stations
- fStations = new Int_t[5];
- for (Int_t i=0; i<5; i++) fStations[i] = 1;
-
AliMUONFactory factory;
factory.Build(this, title);
fAngleEffectNorma->SetParameter(1,-6.809e-01);
fAngleEffectNorma->SetParameter(2,5.151e-02);
fAngleEffectNorma->SetParameter(3,-1.490e-03);
+
+ // Define the global transformation:
+ // Transformation from the old ALICE coordinate system to a new one:
+ // x->-x, z->-z
+ TGeoRotation* rotGlobal
+ = new TGeoRotation("rotGlobal", 90., 180., 90., 90., 180., 0.);
+ fGlobalTransformation = new TGeoCombiTrans(0., 0., 0., rotGlobal);
+}
+
+//_____________________________________________________________________________
+AliMUONv1::AliMUONv1(const AliMUONv1& right)
+ : AliMUON(right)
+{
+ // copy constructor (not implemented)
+
+ Fatal("AliMUONv1", "Copy constructor not provided.");
}
//___________________________________________
-void AliMUONv1::CreateGeometry()
+AliMUONv1::~AliMUONv1()
{
-//
-// Note: all chambers have the same structure, which could be
-// easily parameterised. This was intentionally not done in order
-// to give a starting point for the implementation of the actual
-// design of each station.
- Int_t *idtmed = fIdtmed->GetArray()-1099;
+// Destructor
-// Distance between Stations
-//
- Float_t bpar[3];
- Float_t tpar[3];
-// Float_t pgpar[10];
- Float_t zpos1, zpos2, zfpos;
- // Outer excess and inner recess for mother volume radius
- // with respect to ROuter and RInner
- Float_t dframep=.001; // Value for station 3 should be 6 ...
- // Width (RdPhi) of the frame crosses for stations 1 and 2 (cm)
-// Float_t dframep1=.001;
- Float_t dframep1 = 11.0;
-// Bool_t frameCrosses=kFALSE;
- Bool_t frameCrosses=kTRUE;
- Float_t *dum=0;
-
-// Float_t dframez=0.9;
- // Half of the total thickness of frame crosses (including DAlu)
- // for each chamber in stations 1 and 2:
- // 3% of X0 of composite material,
- // but taken as Aluminium here, with same thickness in number of X0
- Float_t dframez = 3. * 8.9 / 100;
-// Float_t dr;
- Float_t dstation;
+ delete fGlobalTransformation;
+}
-//
-// Rotation matrices in the x-y plane
- Int_t idrotm[1199];
-// phi= 0 deg
- AliMatrix(idrotm[1100], 90., 0., 90., 90., 0., 0.);
-// phi= 90 deg
- AliMatrix(idrotm[1101], 90., 90., 90., 180., 0., 0.);
-// phi= 180 deg
- AliMatrix(idrotm[1102], 90., 180., 90., 270., 0., 0.);
-// phi= 270 deg
- AliMatrix(idrotm[1103], 90., 270., 90., 0., 0., 0.);
-//
- Float_t phi=2*TMath::Pi()/12/2;
+//_____________________________________________________________________________
+AliMUONv1& AliMUONv1::operator=(const AliMUONv1& right)
+{
+ // assignement operator (not implemented)
-//
-// pointer to the current chamber
-// pointer to the current chamber
- Int_t idAlu1=idtmed[1103]; // medium 4
- Int_t idAlu2=idtmed[1104]; // medium 5
-// Int_t idAlu1=idtmed[1100];
-// Int_t idAlu2=idtmed[1100];
- Int_t idAir=idtmed[1100]; // medium 1
-// Int_t idGas=idtmed[1105]; // medium 6 = Ar-isoC4H10 gas
- Int_t idGas=idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
-
+ // check assignement to self
+ if (this == &right) return *this;
- AliMUONChamber *iChamber, *iChamber1, *iChamber2;
-
- if (fStations[0]) {
-
-//********************************************************************
-// Station 1 **
-//********************************************************************
-// CONCENTRIC
- // indices 1 and 2 for first and second chambers in the station
- // iChamber (first chamber) kept for other quanties than Z,
- // assumed to be the same in both chambers
- iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[0];
- iChamber2 =(AliMUONChamber*) (*fChambers)[1];
- zpos1=iChamber1->Z();
- zpos2=iChamber2->Z();
- dstation = TMath::Abs(zpos2 - zpos1);
- // DGas decreased from standard one (0.5)
- iChamber->SetDGas(0.4); iChamber2->SetDGas(0.4);
- // DAlu increased from standard one (3% of X0),
- // because more electronics with smaller pads
- iChamber->SetDAlu(3.5 * 8.9 / 100.); iChamber2->SetDAlu(3.5 * 8.9 / 100.);
- zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
-
-//
-// Mother volume
- tpar[0] = iChamber->RInner()-dframep;
- tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
- tpar[2] = dstation/5;
-
- gMC->Gsvolu("S01M", "TUBE", idAir, tpar, 3);
- gMC->Gsvolu("S02M", "TUBE", idAir, tpar, 3);
- gMC->Gspos("S01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
- gMC->Gspos("S02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
-// // Aluminium frames
-// // Outer frames
-// pgpar[0] = 360/12/2;
-// pgpar[1] = 360.;
-// pgpar[2] = 12.;
-// pgpar[3] = 2;
-// pgpar[4] = -dframez/2;
-// pgpar[5] = iChamber->ROuter();
-// pgpar[6] = pgpar[5]+dframep1;
-// pgpar[7] = +dframez/2;
-// pgpar[8] = pgpar[5];
-// pgpar[9] = pgpar[6];
-// gMC->Gsvolu("S01O", "PGON", idAlu1, pgpar, 10);
-// gMC->Gsvolu("S02O", "PGON", idAlu1, pgpar, 10);
-// gMC->Gspos("S01O",1,"S01M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S01O",2,"S01M", 0.,0.,+zfpos, 0,"ONLY");
-// gMC->Gspos("S02O",1,"S02M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S02O",2,"S02M", 0.,0.,+zfpos, 0,"ONLY");
-// //
-// // Inner frame
-// tpar[0]= iChamber->RInner()-dframep1;
-// tpar[1]= iChamber->RInner();
-// tpar[2]= dframez/2;
-// gMC->Gsvolu("S01I", "TUBE", idAlu1, tpar, 3);
-// gMC->Gsvolu("S02I", "TUBE", idAlu1, tpar, 3);
-
-// gMC->Gspos("S01I",1,"S01M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S01I",2,"S01M", 0.,0.,+zfpos, 0,"ONLY");
-// gMC->Gspos("S02I",1,"S02M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S02I",2,"S02M", 0.,0.,+zfpos, 0,"ONLY");
-//
-// Frame Crosses
- if (frameCrosses) {
- // outside gas
- // security for inside mother volume
- bpar[0] = (iChamber->ROuter() - iChamber->RInner())
- * TMath::Cos(TMath::ASin(dframep1 /
- (iChamber->ROuter() - iChamber->RInner())))
- / 2.0;
- bpar[1] = dframep1/2;
- // total thickness will be (4 * bpar[2]) for each chamber,
- // which has to be equal to (2 * dframez) - DAlu
- bpar[2] = (2.0 * dframez - iChamber->DAlu()) / 4.0;
- gMC->Gsvolu("S01B", "BOX", idAlu1, bpar, 3);
- gMC->Gsvolu("S02B", "BOX", idAlu1, bpar, 3);
-
- gMC->Gspos("S01B",1,"S01M", -iChamber->RInner()-bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S01B",2,"S01M", iChamber->RInner()+bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S01B",3,"S01M", 0, -iChamber->RInner()-bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S01B",4,"S01M", 0, iChamber->RInner()+bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S01B",5,"S01M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S01B",6,"S01M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S01B",7,"S01M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S01B",8,"S01M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
-
- gMC->Gspos("S02B",1,"S02M", -iChamber->RInner()-bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S02B",2,"S02M", iChamber->RInner()+bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S02B",3,"S02M", 0, -iChamber->RInner()-bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S02B",4,"S02M", 0, iChamber->RInner()+bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S02B",5,"S02M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S02B",6,"S02M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S02B",7,"S02M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S02B",8,"S02M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- }
-//
-// Chamber Material represented by Alu sheet
- tpar[0]= iChamber->RInner();
- tpar[1]= iChamber->ROuter();
- tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
- gMC->Gsvolu("S01A", "TUBE", idAlu2, tpar, 3);
- gMC->Gsvolu("S02A", "TUBE",idAlu2, tpar, 3);
- gMC->Gspos("S01A", 1, "S01M", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("S02A", 1, "S02M", 0., 0., 0., 0, "ONLY");
-//
-// Sensitive volumes
- // tpar[2] = iChamber->DGas();
- tpar[2] = iChamber->DGas()/2;
- gMC->Gsvolu("S01G", "TUBE", idGas, tpar, 3);
- gMC->Gsvolu("S02G", "TUBE", idGas, tpar, 3);
- gMC->Gspos("S01G", 1, "S01A", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("S02G", 1, "S02A", 0., 0., 0., 0, "ONLY");
-//
-// Frame Crosses to be placed inside gas
- // NONE: chambers are sensitive everywhere
-// if (frameCrosses) {
-
-// dr = (iChamber->ROuter() - iChamber->RInner());
-// bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
-// bpar[1] = dframep1/2;
-// bpar[2] = iChamber->DGas()/2;
-// gMC->Gsvolu("S01F", "BOX", idAlu1, bpar, 3);
-// gMC->Gsvolu("S02F", "BOX", idAlu1, bpar, 3);
-
-// gMC->Gspos("S01F",1,"S01G", +iChamber->RInner()+bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S01F",2,"S01G", -iChamber->RInner()-bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S01F",3,"S01G", 0, +iChamber->RInner()+bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// gMC->Gspos("S01F",4,"S01G", 0, -iChamber->RInner()-bpar[0] , 0,
-// idrotm[1101],"ONLY");
-
-// gMC->Gspos("S02F",1,"S02G", +iChamber->RInner()+bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S02F",2,"S02G", -iChamber->RInner()-bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S02F",3,"S02G", 0, +iChamber->RInner()+bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// gMC->Gspos("S02F",4,"S02G", 0, -iChamber->RInner()-bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// }
- }
- if (fStations[1]) {
-
-//********************************************************************
-// Station 2 **
-//********************************************************************
- // indices 1 and 2 for first and second chambers in the station
- // iChamber (first chamber) kept for other quanties than Z,
- // assumed to be the same in both chambers
- iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[2];
- iChamber2 =(AliMUONChamber*) (*fChambers)[3];
- zpos1=iChamber1->Z();
- zpos2=iChamber2->Z();
- dstation = TMath::Abs(zpos2 - zpos1);
- // DGas and DAlu not changed from standard values
- zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
-
-//
-// Mother volume
- tpar[0] = iChamber->RInner()-dframep;
- tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
- tpar[2] = dstation/5;
-
- gMC->Gsvolu("S03M", "TUBE", idAir, tpar, 3);
- gMC->Gsvolu("S04M", "TUBE", idAir, tpar, 3);
- gMC->Gspos("S03M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
- gMC->Gspos("S04M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
- gMC->Gsbool("S03M", "L3DO");
- gMC->Gsbool("S03M", "L3O1");
- gMC->Gsbool("S03M", "L3O2");
- gMC->Gsbool("S04M", "L3DO");
- gMC->Gsbool("S04M", "L3O1");
- gMC->Gsbool("S04M", "L3O2");
-
-// // Aluminium frames
-// // Outer frames
-// pgpar[0] = 360/12/2;
-// pgpar[1] = 360.;
-// pgpar[2] = 12.;
-// pgpar[3] = 2;
-// pgpar[4] = -dframez/2;
-// pgpar[5] = iChamber->ROuter();
-// pgpar[6] = pgpar[5]+dframep;
-// pgpar[7] = +dframez/2;
-// pgpar[8] = pgpar[5];
-// pgpar[9] = pgpar[6];
-// gMC->Gsvolu("S03O", "PGON", idAlu1, pgpar, 10);
-// gMC->Gsvolu("S04O", "PGON", idAlu1, pgpar, 10);
-// gMC->Gspos("S03O",1,"S03M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S03O",2,"S03M", 0.,0.,+zfpos, 0,"ONLY");
-// gMC->Gspos("S04O",1,"S04M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S04O",2,"S04M", 0.,0.,+zfpos, 0,"ONLY");
-// //
-// // Inner frame
-// tpar[0]= iChamber->RInner()-dframep;
-// tpar[1]= iChamber->RInner();
-// tpar[2]= dframez/2;
-// gMC->Gsvolu("S03I", "TUBE", idAlu1, tpar, 3);
-// gMC->Gsvolu("S04I", "TUBE", idAlu1, tpar, 3);
-
-// gMC->Gspos("S03I",1,"S03M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S03I",2,"S03M", 0.,0.,+zfpos, 0,"ONLY");
-// gMC->Gspos("S04I",1,"S04M", 0.,0.,-zfpos, 0,"ONLY");
-// gMC->Gspos("S04I",2,"S04M", 0.,0.,+zfpos, 0,"ONLY");
-//
-// Frame Crosses
- if (frameCrosses) {
- // outside gas
- // security for inside mother volume
- bpar[0] = (iChamber->ROuter() - iChamber->RInner())
- * TMath::Cos(TMath::ASin(dframep1 /
- (iChamber->ROuter() - iChamber->RInner())))
- / 2.0;
- bpar[1] = dframep1/2;
- // total thickness will be (4 * bpar[2]) for each chamber,
- // which has to be equal to (2 * dframez) - DAlu
- bpar[2] = (2.0 * dframez - iChamber->DAlu()) / 4.0;
- gMC->Gsvolu("S03B", "BOX", idAlu1, bpar, 3);
- gMC->Gsvolu("S04B", "BOX", idAlu1, bpar, 3);
-
- gMC->Gspos("S03B",1,"S03M", -iChamber->RInner()-bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S03B",2,"S03M", +iChamber->RInner()+bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S03B",3,"S03M", 0, -iChamber->RInner()-bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S03B",4,"S03M", 0, +iChamber->RInner()+bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S03B",5,"S03M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S03B",6,"S03M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S03B",7,"S03M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S03B",8,"S03M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
-
- gMC->Gspos("S04B",1,"S04M", -iChamber->RInner()-bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S04B",2,"S04M", +iChamber->RInner()+bpar[0] , 0, zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S04B",3,"S04M", 0, -iChamber->RInner()-bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S04B",4,"S04M", 0, +iChamber->RInner()+bpar[0] , zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S04B",5,"S04M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S04B",6,"S04M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
- idrotm[1100],"ONLY");
- gMC->Gspos("S04B",7,"S04M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- gMC->Gspos("S04B",8,"S04M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
- idrotm[1101],"ONLY");
- }
-//
-// Chamber Material represented by Alu sheet
- tpar[0]= iChamber->RInner();
- tpar[1]= iChamber->ROuter();
- tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
- gMC->Gsvolu("S03A", "TUBE", idAlu2, tpar, 3);
- gMC->Gsvolu("S04A", "TUBE", idAlu2, tpar, 3);
- gMC->Gspos("S03A", 1, "S03M", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("S04A", 1, "S04M", 0., 0., 0., 0, "ONLY");
-//
-// Sensitive volumes
- // tpar[2] = iChamber->DGas();
- tpar[2] = iChamber->DGas()/2;
- gMC->Gsvolu("S03G", "TUBE", idGas, tpar, 3);
- gMC->Gsvolu("S04G", "TUBE", idGas, tpar, 3);
- gMC->Gspos("S03G", 1, "S03A", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("S04G", 1, "S04A", 0., 0., 0., 0, "ONLY");
-//
-// Frame Crosses to be placed inside gas
- // NONE: chambers are sensitive everywhere
-// if (frameCrosses) {
-
-// dr = (iChamber->ROuter() - iChamber->RInner());
-// bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
-// bpar[1] = dframep1/2;
-// bpar[2] = iChamber->DGas()/2;
-// gMC->Gsvolu("S03F", "BOX", idAlu1, bpar, 3);
-// gMC->Gsvolu("S04F", "BOX", idAlu1, bpar, 3);
-
-// gMC->Gspos("S03F",1,"S03G", +iChamber->RInner()+bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S03F",2,"S03G", -iChamber->RInner()-bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S03F",3,"S03G", 0, +iChamber->RInner()+bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// gMC->Gspos("S03F",4,"S03G", 0, -iChamber->RInner()-bpar[0] , 0,
-// idrotm[1101],"ONLY");
-
-// gMC->Gspos("S04F",1,"S04G", +iChamber->RInner()+bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S04F",2,"S04G", -iChamber->RInner()-bpar[0] , 0, 0,
-// idrotm[1100],"ONLY");
-// gMC->Gspos("S04F",3,"S04G", 0, +iChamber->RInner()+bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// gMC->Gspos("S04F",4,"S04G", 0, -iChamber->RInner()-bpar[0] , 0,
-// idrotm[1101],"ONLY");
-// }
- }
- // define the id of tracking media:
- Int_t idCopper = idtmed[1110];
- Int_t idGlass = idtmed[1111];
- Int_t idCarbon = idtmed[1112];
- Int_t idRoha = idtmed[1113];
-
- // sensitive area: 40*40 cm**2
- const Float_t ksensLength = 40.;
- const Float_t ksensHeight = 40.;
- const Float_t ksensWidth = 0.5; // according to TDR fig 2.120
- const Int_t ksensMaterial = idGas;
- const Float_t kyOverlap = 1.5;
-
- // PCB dimensions in cm; width: 30 mum copper
- const Float_t kpcbLength = ksensLength;
- const Float_t kpcbHeight = 60.;
- const Float_t kpcbWidth = 0.003;
- const Int_t kpcbMaterial= idCopper;
-
- // Insulating material: 200 mum glass fiber glued to pcb
- const Float_t kinsuLength = kpcbLength;
- const Float_t kinsuHeight = kpcbHeight;
- const Float_t kinsuWidth = 0.020;
- const Int_t kinsuMaterial = idGlass;
-
- // Carbon fiber panels: 200mum carbon/epoxy skin
- const Float_t kpanelLength = ksensLength;
- const Float_t kpanelHeight = ksensHeight;
- const Float_t kpanelWidth = 0.020;
- const Int_t kpanelMaterial = idCarbon;
-
- // rohacell between the two carbon panels
- const Float_t krohaLength = ksensLength;
- const Float_t krohaHeight = ksensHeight;
- const Float_t krohaWidth = 0.5;
- const Int_t krohaMaterial = idRoha;
-
- // Frame around the slat: 2 sticks along length,2 along height
- // H: the horizontal ones
- const Float_t khFrameLength = kpcbLength;
- const Float_t khFrameHeight = 1.5;
- const Float_t khFrameWidth = ksensWidth;
- const Int_t khFrameMaterial = idGlass;
-
- // V: the vertical ones
- const Float_t kvFrameLength = 4.0;
- const Float_t kvFrameHeight = ksensHeight + khFrameHeight;
- const Float_t kvFrameWidth = ksensWidth;
- const Int_t kvFrameMaterial = idGlass;
-
- // B: the horizontal border filled with rohacell
- const Float_t kbFrameLength = khFrameLength;
- const Float_t kbFrameHeight = (kpcbHeight - ksensHeight)/2. - khFrameHeight;
- const Float_t kbFrameWidth = khFrameWidth;
- const Int_t kbFrameMaterial = idRoha;
-
- // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper)
- const Float_t knulocLength = 2.5;
- const Float_t knulocHeight = 7.5;
- const Float_t knulocWidth = 0.0030 + 0.0014; // equivalent copper width of vetronite;
- const Int_t knulocMaterial = idCopper;
-
- const Float_t kslatHeight = kpcbHeight;
- const Float_t kslatWidth = ksensWidth + 2.*(kpcbWidth + kinsuWidth +
- 2.* kpanelWidth + krohaWidth);
- const Int_t kslatMaterial = idAir;
- const Float_t kdSlatLength = kvFrameLength; // border on left and right
-
- Float_t spar[3];
- Int_t i, j;
-
- // the panel volume contains the rohacell
-
- Float_t twidth = 2 * kpanelWidth + krohaWidth;
- Float_t panelpar[3] = { kpanelLength/2., kpanelHeight/2., twidth/2. };
- Float_t rohapar[3] = { krohaLength/2., krohaHeight/2., krohaWidth/2. };
-
- // insulating material contains PCB-> gas-> 2 borders filled with rohacell
-
- twidth = 2*(kinsuWidth + kpcbWidth) + ksensWidth;
- Float_t insupar[3] = { kinsuLength/2., kinsuHeight/2., twidth/2. };
- twidth -= 2 * kinsuWidth;
- Float_t pcbpar[3] = { kpcbLength/2., kpcbHeight/2., twidth/2. };
- Float_t senspar[3] = { ksensLength/2., ksensHeight/2., ksensWidth/2. };
- Float_t theight = 2*khFrameHeight + ksensHeight;
- Float_t hFramepar[3]={khFrameLength/2., theight/2., khFrameWidth/2.};
- Float_t bFramepar[3]={kbFrameLength/2., kbFrameHeight/2., kbFrameWidth/2.};
- Float_t vFramepar[3]={kvFrameLength/2., kvFrameHeight/2., kvFrameWidth/2.};
- Float_t nulocpar[3]={knulocLength/2., knulocHeight/2., knulocWidth/2.};
- Float_t xx;
- Float_t xxmax = (kbFrameLength - knulocLength)/2.;
- Int_t index=0;
-
- if (fStations[2]) {
-
-//********************************************************************
-// Station 3 **
-//********************************************************************
- // indices 1 and 2 for first and second chambers in the station
- // iChamber (first chamber) kept for other quanties than Z,
- // assumed to be the same in both chambers
- iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[4];
- iChamber2 =(AliMUONChamber*) (*fChambers)[5];
- zpos1=iChamber1->Z();
- zpos2=iChamber2->Z();
- dstation = TMath::Abs(zpos2 - zpos1);
+ Fatal("operator =", "Assignement operator not provided.");
+
+ return *this;
+}
+//__________________________________________________
+void AliMUONv1::CreateGeometry()
+{
//
-// Mother volume
- tpar[0] = iChamber->RInner()-dframep;
- tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
- tpar[2] = dstation/5;
-
- char *slats5Mother = "S05M";
- char *slats6Mother = "S06M";
- Float_t zoffs5 = 0;
- Float_t zoffs6 = 0;
-
- if (gAlice->GetModule("DIPO")) {
- slats5Mother="DDIP";
- slats6Mother="DDIP";
-
- zoffs5 = TMath::Abs(zpos1);
- zoffs6 = TMath::Abs(zpos2);
- }
-
- else {
- gMC->Gsvolu("S05M", "TUBE", idAir, tpar, 3);
- gMC->Gsvolu("S06M", "TUBE", idAir, tpar, 3);
- gMC->Gspos("S05M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
- gMC->Gspos("S06M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
- }
-
- // volumes for slat geometry (xx=5,..,10 chamber id):
- // Sxx0 Sxx1 Sxx2 Sxx3 --> Slat Mother volumes
- // SxxG --> Sensitive volume (gas)
- // SxxP --> PCB (copper)
- // SxxI --> Insulator (vetronite)
- // SxxC --> Carbon panel
- // SxxR --> Rohacell
- // SxxH, SxxV --> Horizontal and Vertical frames (vetronite)
- // SB5x --> Volumes for the 35 cm long PCB
- // slat dimensions: slat is a MOTHER volume!!! made of air
-
- // only for chamber 5: slat 1 has a PCB shorter by 5cm!
-
- Float_t tlength = 35.;
- Float_t panelpar2[3] = { tlength/2., panelpar[1], panelpar[2]};
- Float_t rohapar2[3] = { tlength/2., rohapar[1], rohapar[2]};
- Float_t insupar2[3] = { tlength/2., insupar[1], insupar[2]};
- Float_t pcbpar2[3] = { tlength/2., pcbpar[1], pcbpar[2]};
- Float_t senspar2[3] = { tlength/2., senspar[1], senspar[2]};
- Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
- Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
-
- const Int_t knSlats3 = 5; // number of slats per quadrant
- const Int_t knPCB3[knSlats3] = {3,3,4,3,2}; // n PCB per slat
- const Float_t kxpos3[knSlats3] = {31., 40., 0., 0., 0.};
- Float_t slatLength3[knSlats3];
-
- // create and position the slat (mother) volumes
-
- char volNam5[5];
- char volNam6[5];
- Float_t xSlat3;
-
- Float_t spar2[3];
- for (i = 0; i<knSlats3; i++){
- slatLength3[i] = kpcbLength * knPCB3[i] + 2. * kdSlatLength;
- xSlat3 = slatLength3[i]/2. - kvFrameLength/2. + kxpos3[i];
- if (i==1 || i==0) slatLength3[i] -= 2. *kdSlatLength; // frame out in PCB with circular border
- Float_t ySlat31 = ksensHeight * i - kyOverlap * i;
- Float_t ySlat32 = -ksensHeight * i + kyOverlap * i;
- spar[0] = slatLength3[i]/2.;
- spar[1] = kslatHeight/2.;
- spar[2] = kslatWidth/2. * 1.01;
- // take away 5 cm from the first slat in chamber 5
- Float_t xSlat32 = 0;
- if (i==1 || i==2) { // 1 pcb is shortened by 5cm
- spar2[0] = spar[0]-5./2.;
- xSlat32 = xSlat3 - 5/2.;
- }
- else {
- spar2[0] = spar[0];
- xSlat32 = xSlat3;
- }
- spar2[1] = spar[1];
- spar2[2] = spar[2];
- Float_t dzCh3=spar[2] * 1.01;
- // zSlat to be checked (odd downstream or upstream?)
- Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
-
- if (gAlice->GetModule("DIPO")) {zSlat*=-1.;}
-
- sprintf(volNam5,"S05%d",i);
- gMC->Gsvolu(volNam5,"BOX",kslatMaterial,spar2,3);
- gMC->Gspos(volNam5, i*4+1,slats5Mother, -xSlat32, ySlat31, zoffs5-zSlat-2.*dzCh3, 0, "ONLY");
- gMC->Gspos(volNam5, i*4+2,slats5Mother, +xSlat32, ySlat31, zoffs5-zSlat+2.*dzCh3, 0, "ONLY");
-
- if (i>0) {
- gMC->Gspos(volNam5, i*4+3,slats5Mother,-xSlat32, ySlat32, zoffs5-zSlat-2.*dzCh3, 0, "ONLY");
- gMC->Gspos(volNam5, i*4+4,slats5Mother,+xSlat32, ySlat32, zoffs5-zSlat+2.*dzCh3, 0, "ONLY");
- }
- sprintf(volNam6,"S06%d",i);
- gMC->Gsvolu(volNam6,"BOX",kslatMaterial,spar,3);
- gMC->Gspos(volNam6, i*4+1,slats6Mother,-xSlat3, ySlat31, zoffs6-zSlat-2.*dzCh3, 0, "ONLY");
- gMC->Gspos(volNam6, i*4+2,slats6Mother,+xSlat3, ySlat31, zoffs6-zSlat+2.*dzCh3, 0, "ONLY");
- if (i>0) {
- gMC->Gspos(volNam6, i*4+3,slats6Mother,-xSlat3, ySlat32, zoffs6-zSlat-2.*dzCh3, 0, "ONLY");
- gMC->Gspos(volNam6, i*4+4,slats6Mother,+xSlat3, ySlat32, zoffs6-zSlat+2.*dzCh3, 0, "ONLY");
- }
- }
-
- // create the panel volume
-
- gMC->Gsvolu("S05C","BOX",kpanelMaterial,panelpar,3);
- gMC->Gsvolu("SB5C","BOX",kpanelMaterial,panelpar2,3);
- gMC->Gsvolu("S06C","BOX",kpanelMaterial,panelpar,3);
-
- // create the rohacell volume
-
- gMC->Gsvolu("S05R","BOX",krohaMaterial,rohapar,3);
- gMC->Gsvolu("SB5R","BOX",krohaMaterial,rohapar2,3);
- gMC->Gsvolu("S06R","BOX",krohaMaterial,rohapar,3);
-
- // create the insulating material volume
-
- gMC->Gsvolu("S05I","BOX",kinsuMaterial,insupar,3);
- gMC->Gsvolu("SB5I","BOX",kinsuMaterial,insupar2,3);
- gMC->Gsvolu("S06I","BOX",kinsuMaterial,insupar,3);
-
- // create the PCB volume
-
- gMC->Gsvolu("S05P","BOX",kpcbMaterial,pcbpar,3);
- gMC->Gsvolu("SB5P","BOX",kpcbMaterial,pcbpar2,3);
- gMC->Gsvolu("S06P","BOX",kpcbMaterial,pcbpar,3);
-
- // create the sensitive volumes,
- gMC->Gsvolu("S05G","BOX",ksensMaterial,dum,0);
- gMC->Gsvolu("S06G","BOX",ksensMaterial,dum,0);
-
-
- // create the vertical frame volume
-
- gMC->Gsvolu("S05V","BOX",kvFrameMaterial,vFramepar,3);
- gMC->Gsvolu("S06V","BOX",kvFrameMaterial,vFramepar,3);
-
- // create the horizontal frame volume
-
- gMC->Gsvolu("S05H","BOX",khFrameMaterial,hFramepar,3);
- gMC->Gsvolu("SB5H","BOX",khFrameMaterial,hFramepar2,3);
- gMC->Gsvolu("S06H","BOX",khFrameMaterial,hFramepar,3);
-
- // create the horizontal border volume
-
- gMC->Gsvolu("S05B","BOX",kbFrameMaterial,bFramepar,3);
- gMC->Gsvolu("SB5B","BOX",kbFrameMaterial,bFramepar2,3);
- gMC->Gsvolu("S06B","BOX",kbFrameMaterial,bFramepar,3);
-
- index=0;
- for (i = 0; i<knSlats3; i++){
- sprintf(volNam5,"S05%d",i);
- sprintf(volNam6,"S06%d",i);
- Float_t xvFrame = (slatLength3[i] - kvFrameLength)/2.;
- Float_t xvFrame2 = xvFrame;
- if ( i==1 || i ==2 ) xvFrame2 -= 5./2.;
- // position the vertical frames
- if (i!=1 && i!=0) {
- gMC->Gspos("S05V",2*i-1,volNam5, xvFrame2, 0., 0. , 0, "ONLY");
- gMC->Gspos("S05V",2*i ,volNam5,-xvFrame2, 0., 0. , 0, "ONLY");
- gMC->Gspos("S06V",2*i-1,volNam6, xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S06V",2*i ,volNam6,-xvFrame, 0., 0. , 0, "ONLY");
- }
- // position the panels and the insulating material
- for (j=0; j<knPCB3[i]; j++){
- index++;
- Float_t xx = ksensLength * (-knPCB3[i]/2.+j+.5);
- Float_t xx2 = xx + 5/2.;
-
- Float_t zPanel = spar[2] - panelpar[2];
- if ( (i==1 || i==2) && j == knPCB3[i]-1) { // 1 pcb is shortened by 5cm
- gMC->Gspos("SB5C",2*index-1,volNam5, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("SB5C",2*index ,volNam5, xx, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("SB5I",index ,volNam5, xx, 0., 0 , 0, "ONLY");
- }
- else if ( (i==1 || i==2) && j < knPCB3[i]-1) {
- gMC->Gspos("S05C",2*index-1,volNam5, xx2, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S05C",2*index ,volNam5, xx2, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("S05I",index ,volNam5, xx2, 0., 0 , 0, "ONLY");
- }
- else {
- gMC->Gspos("S05C",2*index-1,volNam5, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S05C",2*index ,volNam5, xx, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("S05I",index ,volNam5, xx, 0., 0 , 0, "ONLY");
- }
- gMC->Gspos("S06C",2*index-1,volNam6, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S06C",2*index ,volNam6, xx, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("S06I",index,volNam6, xx, 0., 0 , 0, "ONLY");
- }
- }
-
- // position the rohacell volume inside the panel volume
- gMC->Gspos("S05R",1,"S05C",0.,0.,0.,0,"ONLY");
- gMC->Gspos("SB5R",1,"SB5C",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S06R",1,"S06C",0.,0.,0.,0,"ONLY");
-
- // position the PCB volume inside the insulating material volume
- gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
- gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
- // position the horizontal frame volume inside the PCB volume
- gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
- gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
- // position the sensitive volume inside the horizontal frame volume
- gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
- gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
- gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
- // position the border volumes inside the PCB volume
- Float_t yborder = ( kpcbHeight - kbFrameHeight ) / 2.;
- gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
- gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
- gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
-
- // create the NULOC volume and position it in the horizontal frame
-
- gMC->Gsvolu("S05N","BOX",knulocMaterial,nulocpar,3);
- gMC->Gsvolu("S06N","BOX",knulocMaterial,nulocpar,3);
- index = 0;
- Float_t xxmax2 = xxmax - 5./2.;
- for (xx = -xxmax; xx<=xxmax; xx+=2*knulocLength) {
- index++;
- gMC->Gspos("S05N",2*index-1,"S05B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S05N",2*index ,"S05B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- if (xx > -xxmax2 && xx< xxmax2) {
- gMC->Gspos("S05N",2*index-1,"SB5B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S05N",2*index ,"SB5B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- }
- gMC->Gspos("S06N",2*index-1,"S06B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S06N",2*index ,"S06B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- }
-
- // position the volumes approximating the circular section of the pipe
- Float_t yoffs = ksensHeight/2. - kyOverlap;
- Float_t epsilon = 0.001;
- Int_t ndiv=6;
- Float_t divpar[3];
- Double_t dydiv= ksensHeight/ndiv;
- Double_t ydiv = yoffs -dydiv;
- Int_t imax=0;
- imax = 1;
- Float_t rmin = 33.;
- Float_t z1 = spar[2], z2=2*spar[2]*1.01;
- if (gAlice->GetModule("DIPO")) {z1*=-1.;}
- for (Int_t idiv=0;idiv<ndiv; idiv++){
- ydiv+= dydiv;
- Float_t xdiv = 0.;
- if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
- divpar[0] = (kpcbLength-xdiv)/2.;
- divpar[1] = dydiv/2. - epsilon;
- divpar[2] = ksensWidth/2.;
- Float_t xvol=(kpcbLength+xdiv)/2.+1.999;
- Float_t yvol=ydiv + dydiv/2.;
- //printf ("y ll = %f y ur = %f \n",yvol - divpar[1], yvol + divpar[1]);
- gMC->Gsposp("S05G",imax+4*idiv+1,slats5Mother,-xvol, yvol, zoffs5-z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S06G",imax+4*idiv+1,slats6Mother,-xvol, yvol, zoffs6-z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S05G",imax+4*idiv+2,slats5Mother,-xvol,-yvol, zoffs5-z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S06G",imax+4*idiv+2,slats6Mother,-xvol,-yvol, zoffs6-z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S05G",imax+4*idiv+3,slats5Mother,+xvol, yvol, zoffs5-z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S06G",imax+4*idiv+3,slats6Mother,+xvol, yvol, zoffs6-z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S05G",imax+4*idiv+4,slats5Mother,+xvol,-yvol, zoffs5-z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S06G",imax+4*idiv+4,slats6Mother,+xvol,-yvol, zoffs6-z1+z2, 0, "ONLY",divpar,3);
- }
- }
-
- if (fStations[3]) {
-
-//********************************************************************
-// Station 4 **
-//********************************************************************
- // indices 1 and 2 for first and second chambers in the station
- // iChamber (first chamber) kept for other quanties than Z,
- // assumed to be the same in both chambers
- iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[6];
- iChamber2 =(AliMUONChamber*) (*fChambers)[7];
- zpos1=iChamber1->Z();
- zpos2=iChamber2->Z();
- dstation = TMath::Abs(zpos2 - zpos1);
-// zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2; // not used any more
-
+// Construct geometry using geometry builders.
//
-// Mother volume
- tpar[0] = iChamber->RInner()-dframep;
- tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
- tpar[2] = dstation/4;
-
- gMC->Gsvolu("S07M", "TUBE", idAir, tpar, 3);
- gMC->Gsvolu("S08M", "TUBE", idAir, tpar, 3);
- gMC->Gspos("S07M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
- gMC->Gspos("S08M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
-
- const Int_t knSlats4 = 6; // number of slats per quadrant
- const Int_t knPCB4[knSlats4] = {4,4,5,5,4,3}; // n PCB per slat
- const Float_t kxpos4[knSlats4] = {38.5, 40., 0., 0., 0., 0.};
- Float_t slatLength4[knSlats4];
-
- // create and position the slat (mother) volumes
-
- char volNam7[5];
- char volNam8[5];
- Float_t xSlat4;
- Float_t ySlat4;
-
- for (i = 0; i<knSlats4; i++){
- slatLength4[i] = kpcbLength * knPCB4[i] + 2. * kdSlatLength;
- xSlat4 = slatLength4[i]/2. - kvFrameLength/2. + kxpos4[i];
- if (i==1) slatLength4[i] -= 2. *kdSlatLength; // frame out in PCB with circular border
- ySlat4 = ksensHeight * i - kyOverlap *i;
-
- spar[0] = slatLength4[i]/2.;
- spar[1] = kslatHeight/2.;
- spar[2] = kslatWidth/2.*1.01;
- Float_t dzCh4=spar[2]*1.01;
- // zSlat to be checked (odd downstream or upstream?)
- Float_t zSlat = (i%2 ==0)? spar[2] : -spar[2];
- sprintf(volNam7,"S07%d",i);
- gMC->Gsvolu(volNam7,"BOX",kslatMaterial,spar,3);
- gMC->Gspos(volNam7, i*4+1,"S07M",-xSlat4, ySlat4, -zSlat-2.*dzCh4, 0, "ONLY");
- gMC->Gspos(volNam7, i*4+2,"S07M",+xSlat4, ySlat4, -zSlat+2.*dzCh4, 0, "ONLY");
- if (i>0) {
- gMC->Gspos(volNam7, i*4+3,"S07M",-xSlat4,-ySlat4, -zSlat-2.*dzCh4, 0, "ONLY");
- gMC->Gspos(volNam7, i*4+4,"S07M",+xSlat4,-ySlat4, -zSlat+2.*dzCh4, 0, "ONLY");
- }
- sprintf(volNam8,"S08%d",i);
- gMC->Gsvolu(volNam8,"BOX",kslatMaterial,spar,3);
- gMC->Gspos(volNam8, i*4+1,"S08M",-xSlat4, ySlat4, -zSlat-2.*dzCh4, 0, "ONLY");
- gMC->Gspos(volNam8, i*4+2,"S08M",+xSlat4, ySlat4, -zSlat+2.*dzCh4, 0, "ONLY");
- if (i>0) {
- gMC->Gspos(volNam8, i*4+3,"S08M",-xSlat4,-ySlat4, -zSlat-2.*dzCh4, 0, "ONLY");
- gMC->Gspos(volNam8, i*4+4,"S08M",+xSlat4,-ySlat4, -zSlat+2.*dzCh4, 0, "ONLY");
- }
- }
-
-
- // create the panel volume
-
- gMC->Gsvolu("S07C","BOX",kpanelMaterial,panelpar,3);
- gMC->Gsvolu("S08C","BOX",kpanelMaterial,panelpar,3);
-
- // create the rohacell volume
+ for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
- gMC->Gsvolu("S07R","BOX",krohaMaterial,rohapar,3);
- gMC->Gsvolu("S08R","BOX",krohaMaterial,rohapar,3);
+ // Get the builder
+ AliMUONVGeometryBuilder* builder
+ = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
- // create the insulating material volume
-
- gMC->Gsvolu("S07I","BOX",kinsuMaterial,insupar,3);
- gMC->Gsvolu("S08I","BOX",kinsuMaterial,insupar,3);
-
- // create the PCB volume
-
- gMC->Gsvolu("S07P","BOX",kpcbMaterial,pcbpar,3);
- gMC->Gsvolu("S08P","BOX",kpcbMaterial,pcbpar,3);
-
- // create the sensitive volumes,
-
- gMC->Gsvolu("S07G","BOX",ksensMaterial,dum,0);
- gMC->Gsvolu("S08G","BOX",ksensMaterial,dum,0);
-
- // create the vertical frame volume
-
- gMC->Gsvolu("S07V","BOX",kvFrameMaterial,vFramepar,3);
- gMC->Gsvolu("S08V","BOX",kvFrameMaterial,vFramepar,3);
-
- // create the horizontal frame volume
-
- gMC->Gsvolu("S07H","BOX",khFrameMaterial,hFramepar,3);
- gMC->Gsvolu("S08H","BOX",khFrameMaterial,hFramepar,3);
-
- // create the horizontal border volume
-
- gMC->Gsvolu("S07B","BOX",kbFrameMaterial,bFramepar,3);
- gMC->Gsvolu("S08B","BOX",kbFrameMaterial,bFramepar,3);
-
- index=0;
- for (i = 0; i<knSlats4; i++){
- sprintf(volNam7,"S07%d",i);
- sprintf(volNam8,"S08%d",i);
- Float_t xvFrame = (slatLength4[i] - kvFrameLength)/2.;
- // position the vertical frames
- if (i!=1 && i!=0) {
- gMC->Gspos("S07V",2*i-1,volNam7, xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S07V",2*i ,volNam7,-xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S08V",2*i-1,volNam8, xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S08V",2*i ,volNam8,-xvFrame, 0., 0. , 0, "ONLY");
- }
- // position the panels and the insulating material
- for (j=0; j<knPCB4[i]; j++){
- index++;
- Float_t xx = ksensLength * (-knPCB4[i]/2.+j+.5);
-
- Float_t zPanel = spar[2] - panelpar[2];
- gMC->Gspos("S07C",2*index-1,volNam7, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S07C",2*index ,volNam7, xx, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("S08C",2*index-1,volNam8, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S08C",2*index ,volNam8, xx, 0.,-zPanel , 0, "ONLY");
-
- gMC->Gspos("S07I",index,volNam7, xx, 0., 0 , 0, "ONLY");
- gMC->Gspos("S08I",index,volNam8, xx, 0., 0 , 0, "ONLY");
- }
- }
-
- // position the rohacell volume inside the panel volume
- gMC->Gspos("S07R",1,"S07C",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S08R",1,"S08C",0.,0.,0.,0,"ONLY");
-
- // position the PCB volume inside the insulating material volume
- gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
- // position the horizontal frame volume inside the PCB volume
- gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
- // position the sensitive volume inside the horizontal frame volume
- gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
- gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
- // position the border volumes inside the PCB volume
- Float_t yborder = ( kpcbHeight - kbFrameHeight ) / 2.;
- gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
- gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
-
- // create the NULOC volume and position it in the horizontal frame
-
- gMC->Gsvolu("S07N","BOX",knulocMaterial,nulocpar,3);
- gMC->Gsvolu("S08N","BOX",knulocMaterial,nulocpar,3);
- index = 0;
- for (xx = -xxmax; xx<=xxmax; xx+=2*knulocLength) {
- index++;
- gMC->Gspos("S07N",2*index-1,"S07B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S07N",2*index ,"S07B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S08N",2*index-1,"S08B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S08N",2*index ,"S08B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- }
-
- // position the volumes approximating the circular section of the pipe
- Float_t yoffs = ksensHeight/2. - kyOverlap;
- Float_t epsilon = 0.001;
- Int_t ndiv=6;
- Float_t divpar[3];
- Double_t dydiv= ksensHeight/ndiv;
- Double_t ydiv = yoffs -dydiv;
- Int_t imax=0;
- imax = 1;
- Float_t rmin = 40.;
- Float_t z1 = -spar[2], z2=2*spar[2]*1.01;
- for (Int_t idiv=0;idiv<ndiv; idiv++){
- ydiv+= dydiv;
- Float_t xdiv = 0.;
- if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
- divpar[0] = (kpcbLength-xdiv)/2.;
- divpar[1] = dydiv/2. - epsilon;
- divpar[2] = ksensWidth/2.;
- Float_t xvol=(kpcbLength+xdiv)/2.+1.999;
- Float_t yvol=ydiv + dydiv/2.;
- gMC->Gsposp("S07G",imax+4*idiv+1,"S07M", -xvol, yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S08G",imax+4*idiv+1,"S08M", -xvol, yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S07G",imax+4*idiv+2,"S07M", -xvol,-yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S08G",imax+4*idiv+2,"S08M", -xvol,-yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S07G",imax+4*idiv+3,"S07M", xvol, yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S08G",imax+4*idiv+3,"S08M", xvol, yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S07G",imax+4*idiv+4,"S07M", xvol,-yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S08G",imax+4*idiv+4,"S08M", xvol,-yvol, -z1+z2, 0, "ONLY",divpar,3);
- }
-
-
-
-
-
- }
-
- if (fStations[4]) {
-
-
-//********************************************************************
-// Station 5 **
-//********************************************************************
- // indices 1 and 2 for first and second chambers in the station
- // iChamber (first chamber) kept for other quanties than Z,
- // assumed to be the same in both chambers
- iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[8];
- iChamber2 =(AliMUONChamber*) (*fChambers)[9];
- zpos1=iChamber1->Z();
- zpos2=iChamber2->Z();
- dstation = TMath::Abs(zpos2 - zpos1);
-// zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2; // not used any more
-
-//
-// Mother volume
- tpar[0] = iChamber->RInner()-dframep;
- tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
- tpar[2] = dstation/5.;
-
- gMC->Gsvolu("S09M", "TUBE", idAir, tpar, 3);
- gMC->Gsvolu("S10M", "TUBE", idAir, tpar, 3);
- gMC->Gspos("S09M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
- gMC->Gspos("S10M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
-
-
- const Int_t knSlats5 = 7; // number of slats per quadrant
- const Int_t knPCB5[knSlats5] = {5,5,6,6,5,4,3}; // n PCB per slat
- const Float_t kxpos5[knSlats5] = {38.5, 40., 0., 0., 0., 0., 0.};
- Float_t slatLength5[knSlats5];
- char volNam9[5];
- char volNam10[5];
- Float_t xSlat5;
- Float_t ySlat5;
-
- for (i = 0; i<knSlats5; i++){
- slatLength5[i] = kpcbLength * knPCB5[i] + 2. * kdSlatLength;
- xSlat5 = slatLength5[i]/2. - kvFrameLength/2. +kxpos5[i];
- if (i==1 || i==0) slatLength5[i] -= 2. *kdSlatLength; // frame out in PCB with circular border
- ySlat5 = ksensHeight * i - kyOverlap * i;
- spar[0] = slatLength5[i]/2.;
- spar[1] = kslatHeight/2.;
- spar[2] = kslatWidth/2. * 1.01;
- Float_t dzCh5=spar[2]*1.01;
- // zSlat to be checked (odd downstream or upstream?)
- Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
- sprintf(volNam9,"S09%d",i);
- gMC->Gsvolu(volNam9,"BOX",kslatMaterial,spar,3);
- gMC->Gspos(volNam9, i*4+1,"S09M",-xSlat5, ySlat5, -zSlat-2.*dzCh5, 0, "ONLY");
- gMC->Gspos(volNam9, i*4+2,"S09M",+xSlat5, ySlat5, -zSlat+2.*dzCh5, 0, "ONLY");
- if (i>0) {
- gMC->Gspos(volNam9, i*4+3,"S09M",-xSlat5,-ySlat5, -zSlat-2.*dzCh5, 0, "ONLY");
- gMC->Gspos(volNam9, i*4+4,"S09M",+xSlat5,-ySlat5, -zSlat+2.*dzCh5, 0, "ONLY");
- }
- sprintf(volNam10,"S10%d",i);
- gMC->Gsvolu(volNam10,"BOX",kslatMaterial,spar,3);
- gMC->Gspos(volNam10, i*4+1,"S10M",-xSlat5, ySlat5, -zSlat-2.*dzCh5, 0, "ONLY");
- gMC->Gspos(volNam10, i*4+2,"S10M",+xSlat5, ySlat5, -zSlat+2.*dzCh5, 0, "ONLY");
- if (i>0) {
- gMC->Gspos(volNam10, i*4+3,"S10M",-xSlat5,-ySlat5, -zSlat-2.*dzCh5, 0, "ONLY");
- gMC->Gspos(volNam10, i*4+4,"S10M",+xSlat5,-ySlat5, -zSlat+2.*dzCh5, 0, "ONLY");
- }
- }
-
- // create the panel volume
-
- gMC->Gsvolu("S09C","BOX",kpanelMaterial,panelpar,3);
- gMC->Gsvolu("S10C","BOX",kpanelMaterial,panelpar,3);
+ // Create geometry with each builder
+ if (builder) {
+ builder->CreateGeometry();
+ builder->SetTransformations();
+ }
+ }
- // create the rohacell volume
+ for (Int_t j=0; j<AliMUONConstants::NCh(); j++) {
- gMC->Gsvolu("S09R","BOX",krohaMaterial,rohapar,3);
- gMC->Gsvolu("S10R","BOX",krohaMaterial,rohapar,3);
+ AliMUONChamberGeometry* geometry = Chamber(j).GetGeometry();
- // create the insulating material volume
+ if (!geometry) continue;
+ // Skip chambers with not defined geometry
+
+ // Loop over envelopes
+ const TObjArray* kEnvelopes = geometry->GetEnvelopes();
+ for (Int_t k=0; k<kEnvelopes->GetEntriesFast(); k++) {
+
+ // Get envelope
+ AliMUONGeometryEnvelope* env = (AliMUONGeometryEnvelope*)kEnvelopes->At(k);
+ const TGeoCombiTrans* kEnvTrans = env->GetTransformation();
+ const char* only = "ONLY";
+ if (env->IsMANY()) only = "MANY";
+
+ if (env->IsVirtual() && env->GetConstituents()->GetEntriesFast() == 0 ) {
+ // virtual envelope + nof constituents = 0
+ // => not allowed;
+ // empty virtual envelope has no sense
+ Fatal("CreateGeometry", "Virtual envelope must have constituents.");
+ return;
+ }
- gMC->Gsvolu("S09I","BOX",kinsuMaterial,insupar,3);
- gMC->Gsvolu("S10I","BOX",kinsuMaterial,insupar,3);
+ if (!env->IsVirtual() && env->GetConstituents()->GetEntriesFast() > 0 ) {
+ // non virtual envelope + nof constituents > 0
+ // => not allowed;
+ // use VMC to place constituents
+ Fatal("CreateGeometry", "Non virtual envelope cannot have constituents.");
+ return;
+ }
- // create the PCB volume
+ if (!env->IsVirtual() && env->GetConstituents()->GetEntriesFast() == 0 ) {
+ // non virtual envelope + nof constituents = 0
+ // => place envelope in ALICE by composed transformation:
+ // Tglobal * Tch * Tenv
+
+ // Compound chamber transformation with the envelope one
+ TGeoHMatrix total
+ = (*fGlobalTransformation) *
+ (*geometry->GetTransformation()) *
+ (*kEnvTrans);
+ PlaceVolume(env->GetName(), geometry->GetMotherVolume(),
+ env->GetCopyNo(), total, 0, 0, only);
+ }
- gMC->Gsvolu("S09P","BOX",kpcbMaterial,pcbpar,3);
- gMC->Gsvolu("S10P","BOX",kpcbMaterial,pcbpar,3);
-
- // create the sensitive volumes,
-
- gMC->Gsvolu("S09G","BOX",ksensMaterial,dum,0);
- gMC->Gsvolu("S10G","BOX",ksensMaterial,dum,0);
-
- // create the vertical frame volume
-
- gMC->Gsvolu("S09V","BOX",kvFrameMaterial,vFramepar,3);
- gMC->Gsvolu("S10V","BOX",kvFrameMaterial,vFramepar,3);
-
- // create the horizontal frame volume
-
- gMC->Gsvolu("S09H","BOX",khFrameMaterial,hFramepar,3);
- gMC->Gsvolu("S10H","BOX",khFrameMaterial,hFramepar,3);
-
- // create the horizontal border volume
-
- gMC->Gsvolu("S09B","BOX",kbFrameMaterial,bFramepar,3);
- gMC->Gsvolu("S10B","BOX",kbFrameMaterial,bFramepar,3);
-
- index=0;
- for (i = 0; i<knSlats5; i++){
- sprintf(volNam9,"S09%d",i);
- sprintf(volNam10,"S10%d",i);
- Float_t xvFrame = (slatLength5[i] - kvFrameLength)/2.;
- // position the vertical frames
- if (i!=1 && i!=0) {
- gMC->Gspos("S09V",2*i-1,volNam9, xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S09V",2*i ,volNam9,-xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S10V",2*i-1,volNam10, xvFrame, 0., 0. , 0, "ONLY");
- gMC->Gspos("S10V",2*i ,volNam10,-xvFrame, 0., 0. , 0, "ONLY");
- }
-
- // position the panels and the insulating material
- for (j=0; j<knPCB5[i]; j++){
- index++;
- Float_t xx = ksensLength * (-knPCB5[i]/2.+j+.5);
-
- Float_t zPanel = spar[2] - panelpar[2];
- gMC->Gspos("S09C",2*index-1,volNam9, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S09C",2*index ,volNam9, xx, 0.,-zPanel , 0, "ONLY");
- gMC->Gspos("S10C",2*index-1,volNam10, xx, 0., zPanel , 0, "ONLY");
- gMC->Gspos("S10C",2*index ,volNam10, xx, 0.,-zPanel , 0, "ONLY");
-
- gMC->Gspos("S09I",index,volNam9, xx, 0., 0 , 0, "ONLY");
- gMC->Gspos("S10I",index,volNam10, xx, 0., 0 , 0, "ONLY");
- }
- }
-
- // position the rohacell volume inside the panel volume
- gMC->Gspos("S09R",1,"S09C",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S10R",1,"S10C",0.,0.,0.,0,"ONLY");
-
- // position the PCB volume inside the insulating material volume
- gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
- // position the horizontal frame volume inside the PCB volume
- gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
- gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
- // position the sensitive volume inside the horizontal frame volume
- gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
- gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
- // position the border volumes inside the PCB volume
- Float_t yborder = ( kpcbHeight - kbFrameHeight ) / 2.;
- gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
- gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
- gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
-
- // create the NULOC volume and position it in the horizontal frame
-
- gMC->Gsvolu("S09N","BOX",knulocMaterial,nulocpar,3);
- gMC->Gsvolu("S10N","BOX",knulocMaterial,nulocpar,3);
- index = 0;
- for (xx = -xxmax; xx<=xxmax; xx+=2*knulocLength) {
- index++;
- gMC->Gspos("S09N",2*index-1,"S09B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S09N",2*index ,"S09B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S10N",2*index-1,"S10B", xx, 0.,-kbFrameWidth/4., 0, "ONLY");
- gMC->Gspos("S10N",2*index ,"S10B", xx, 0., kbFrameWidth/4., 0, "ONLY");
- }
- // position the volumes approximating the circular section of the pipe
- Float_t yoffs = ksensHeight/2. - kyOverlap;
- Float_t epsilon = 0.001;
- Int_t ndiv=6;
- Float_t divpar[3];
- Double_t dydiv= ksensHeight/ndiv;
- Double_t ydiv = yoffs -dydiv;
- Int_t imax=0;
- // for (Int_t islat=0; islat<knSlats3; islat++) imax += knPCB3[islat];
- imax = 1;
- Float_t rmin = 40.;
- Float_t z1 = spar[2], z2=2*spar[2]*1.01;
- for (Int_t idiv=0;idiv<ndiv; idiv++){
- ydiv+= dydiv;
- Float_t xdiv = 0.;
- if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
- divpar[0] = (kpcbLength-xdiv)/2.;
- divpar[1] = dydiv/2. - epsilon;
- divpar[2] = ksensWidth/2.;
- Float_t xvol=(kpcbLength+xdiv)/2. + 1.999;
- Float_t yvol=ydiv + dydiv/2.;
- gMC->Gsposp("S09G",imax+4*idiv+1,"S09M", -xvol, yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S10G",imax+4*idiv+1,"S10M", -xvol, yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S09G",imax+4*idiv+2,"S09M", -xvol,-yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S10G",imax+4*idiv+2,"S10M", -xvol,-yvol, -z1-z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S09G",imax+4*idiv+3,"S09M", +xvol, yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S10G",imax+4*idiv+3,"S10M", +xvol, yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S09G",imax+4*idiv+4,"S09M", +xvol,-yvol, -z1+z2, 0, "ONLY",divpar,3);
- gMC->Gsposp("S10G",imax+4*idiv+4,"S10M", +xvol,-yvol, -z1+z2, 0, "ONLY",divpar,3);
- }
-
- }
-
-//********************************************************************
-// Trigger **
-//********************************************************************
- /*
- zpos1 and zpos2 are the middle of the first and second
- planes of station 1 (+1m for second station):
- zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
- zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
- zposxm and zposxp= middles of gaz gaps within a detection plane
- rem: the total thickness accounts for 1 mm of al on both
- side of the RPCs (see zpos1 and zpos2)
- */
-
-// vertical gap between right and left chambers (kDXZERO*2=4cm)
- const Float_t kDXZERO=2.;
-// main distances for chamber definition in first plane/first station
- const Float_t kXMIN=34.;
- const Float_t kXMED=51.;
- const Float_t kXMAX=272.;
-// kXMAX will become 255. in real life. segmentation to be updated accordingly
-// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
- const Float_t kYMIN=34.;
- const Float_t kYMAX=51.;
-// inner/outer radius of flange between beam shield. and chambers (1/station)
- const Float_t kRMIN[2]={50.,50.};
- const Float_t kRMAX[2]={64.,68.};
-// z position of the middle of the gas gap in mother vol
- const Float_t kZm=-3.6;
- const Float_t kZp=+3.6;
-
- iChamber1 = (AliMUONChamber*) (*fChambers)[10];
- zpos1 = iChamber1->Z();
+ if (env->IsVirtual() && env->GetConstituents()->GetEntriesFast() > 0 ) {
+ // virtual envelope + nof constituents > 0
+ // => do not place envelope and place constituents
+ // in ALICE by composed transformation:
+ // Tglobal * Tch * Tenv * Tconst
+
+ for (Int_t l=0; l<env->GetConstituents()->GetEntriesFast(); l++) {
+ AliMUONGeometryConstituent* constituent
+ = (AliMUONGeometryConstituent*)env->GetConstituents()->At(l);
+
+ // Compound chamber transformation with the envelope one + the constituent one
+ TGeoHMatrix total
+ = (*fGlobalTransformation) *
+ (*geometry->GetTransformation()) *
+ (*kEnvTrans) *
+ (*constituent->GetTransformation());
+
+ PlaceVolume(constituent->GetName(), geometry->GetMotherVolume(),
+ constituent->GetCopyNo(), total,
+ constituent->GetNpar(), constituent->GetParam(), only);
+ }
+ }
+ }
+ }
+}
+//__________________________________________________________________
+Int_t AliMUONv1::GetChamberId(Int_t volId) const
+{
+// Check if the volume with specified volId is a sensitive volume (gas)
+// of some chamber and returns the chamber number;
+// if not sensitive volume - return 0.
+// ---
-// ratio of zpos1m/zpos1p and inverse for first plane
- Float_t zmp=(zpos1+3.6)/(zpos1-3.6);
- Float_t zpm=1./zmp;
-
- Int_t icount=0; // chamber counter (0 1 2 3)
-
- for (Int_t istation=0; istation<2; istation++) { // loop on stations
- for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
-
- Int_t iVolNum=1; // counter Volume Number
- icount = Int_t(iplane*TMath::Power(2,0))+
- Int_t(istation*TMath::Power(2,1));
-
- char volPlane[5];
- sprintf(volPlane,"SM%d%d",istation+1,iplane+1);
-
- iChamber = (AliMUONChamber*) (*fChambers)[10+icount];
- Float_t zpos = iChamber->Z();
-
-// mother volume
- tpar[0] = iChamber->RInner();
- tpar[1] = iChamber->ROuter();
- tpar[2] = 4.0;
- gMC->Gsvolu(volPlane,"TUBE",idAir,tpar,3);
-
-// Flange between beam shielding and RPC
- tpar[0]= kRMIN[istation];
- tpar[1]= kRMAX[istation];
- tpar[2]= 4.0;
-
- char volFlange[5];
- sprintf(volFlange,"SF%dA",icount+1);
- gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3); //Al
- gMC->Gspos(volFlange,1,volPlane,0.,0.,0.,0,"MANY");
-
-// scaling factor
- Float_t zRatio = zpos / zpos1;
-
-// chamber prototype
- tpar[0]= 0.;
- tpar[1]= 0.;
- tpar[2]= 0.;
-
- char volAlu[5]; // Alu
- char volBak[5]; // Bakelite
- char volGaz[5]; // Gas streamer
-
- sprintf(volAlu,"SC%dA",icount+1);
- sprintf(volBak,"SB%dA",icount+1);
- sprintf(volGaz,"SG%dA",icount+1);
-
- gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0); // Al
- gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0); // Bakelite
- gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0); // Gas streamer
-
-// chamber type A
- tpar[0] = -1.;
- tpar[1] = -1.;
-
- Float_t xA=(kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
- Float_t yAm=0.;
- Float_t yAp=0.;
-
- tpar[2] = 0.1;
- gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
- tpar[2] = 0.3;
- gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);
-
- tpar[2] = 0.4;
- tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
- tpar[1] = kYMIN*zRatio;
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xA,yAm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xA,yAp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsbool(volAlu,volFlange);
-
-// chamber type B
- Float_t tpar1save=tpar[1];
- Float_t y1msave=yAm;
- Float_t y1psave=yAp;
-
- tpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
- tpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
-
- Float_t xB=(kDXZERO+kXMIN)*zRatio+tpar[0];
- Float_t yBp=(y1msave+tpar1save)*zpm+tpar[1];
- Float_t yBm=(y1psave+tpar1save)*zmp+tpar[1];
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xB, yBp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xB, yBm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xB,-yBp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xB,-yBm,-kZm,0,"ONLY",tpar,3);
-
-// chamber type C (note : same Z than type B)
- tpar1save=tpar[1];
- y1msave=yBm;
- y1psave=yBp;
-
- tpar[0] = (kXMAX/2)*zRatio;
- tpar[1] = (kYMAX/2)*zRatio;
-
- Float_t xC=kDXZERO*zRatio+tpar[0];
- Float_t yCp=(y1psave+tpar1save)*1.+tpar[1];
- Float_t yCm=(y1msave+tpar1save)*1.+tpar[1];
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane,-xC, yCp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xC, yCm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane,-xC,-yCp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xC,-yCm,-kZm,0,"ONLY",tpar,3);
-
-// chamber type D, E and F (same size)
- tpar1save=tpar[1];
- y1msave=yCm;
- y1psave=yCp;
-
- tpar[0] = (kXMAX/2.)*zRatio;
- tpar[1] = kYMIN*zRatio;
-
- Float_t xD=kDXZERO*zRatio+tpar[0];
- Float_t yDp=(y1msave+tpar1save)*zpm+tpar[1];
- Float_t yDm=(y1psave+tpar1save)*zmp+tpar[1];
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD, yDm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD, yDp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD,-yDm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD,-yDp,-kZp,0,"ONLY",tpar,3);
-
- tpar1save=tpar[1];
- y1msave=yDm;
- y1psave=yDp;
- Float_t yEp=(y1msave+tpar1save)*zpm+tpar[1];
- Float_t yEm=(y1psave+tpar1save)*zmp+tpar[1];
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD, yEp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD, yEm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD,-yEp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD,-yEm,-kZm,0,"ONLY",tpar,3);
-
- tpar1save=tpar[1];
- y1msave=yEm;
- y1psave=yEp;
- Float_t yFp=(y1msave+tpar1save)*zpm+tpar[1];
- Float_t yFm=(y1psave+tpar1save)*zmp+tpar[1];
-
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD, yFm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD, yFp,-kZp,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, -xD,-yFm,-kZm,0,"ONLY",tpar,3);
- gMC->Gsposp(volAlu,iVolNum++,volPlane, xD,-yFp,-kZp,0,"ONLY",tpar,3);
-
-// Positioning plane in ALICE
- gMC->Gspos(volPlane,1,"ALIC",0.,0.,zpos,0,"ONLY");
-
- } // end loop on detection planes
- } // end loop on stations
+/*
+ for (Int_t i = 1; i <= AliMUONConstants::NCh(); i++)
+ if (volId==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()) return i;
+*/
+ for (Int_t i = 1; i <= AliMUONConstants::NCh(); i++)
+ if ( ((AliMUONChamber*)(*fChambers)[i-1])->IsSensId(volId) ) return i;
+ return 0;
}
-
-
-//___________________________________________
+//________________________________________________________________
void AliMUONv1::CreateMaterials()
{
+
// *** DEFINITION OF AVAILABLE MUON MATERIALS ***
//
// Ar-CO2 gas (80%+20%)
fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd,
fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
+
+
+
+ //.Materials specific to stations
+ // created via builders
+
+ for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
+
+ // Get the builder
+ AliMUONVGeometryBuilder* builder
+ = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
+
+ // Create materials with each builder
+ if (builder) builder->CreateMaterials();
+ }
}
-//___________________________________________
+//______________________________________________________________________________
+void AliMUONv1::PlaceVolume(const TString& name, const TString& mName,
+ Int_t copyNo, const TGeoHMatrix& matrix,
+ Int_t npar, Double_t* param, const char* only) const
+{
+// Place the volume specified by name with the given transformation matrix
+// ---
+
+ // Do not apply global transformation
+ // if mother volume == DDIP
+ // (as it is applied on this volume)
+ TGeoHMatrix transform(matrix);
+ if (mName == TString("DDIP")) {
+ transform = (*fGlobalTransformation) * transform;
+ // To be changed to (*fGlobalTransformation).inverse()
+ // when available in TGeo
+ // To make this correct also for a general case when
+ // (*fGlobalTransformation) * *fGlobalTransformation) != 1
+ }
+
+ // Decompose transformation
+ const Double_t* xyz = transform.GetTranslation();
+ const Double_t* rm = transform.GetRotationMatrix();
+
+ //cout << "Got translation: "
+ // << xyz[0] << " " << xyz[1] << " " << xyz[2] << endl;
+
+ //cout << "Got rotation: "
+ // << rm[0] << " " << rm[1] << " " << rm[2] << endl
+ // << rm[3] << " " << rm[4] << " " << rm[5] << endl
+ // << rm[6] << " " << rm[7] << " " << rm[8] << endl;
+
+ // Check for presence of rotation
+ // (will be nice to be available in TGeo)
+ const Double_t kTolerance = 1e-04;
+ Bool_t isRotation = true;
+ if (TMath::Abs(rm[0] - 1.) < kTolerance &&
+ TMath::Abs(rm[1] - 0.) < kTolerance &&
+ TMath::Abs(rm[2] - 0.) < kTolerance &&
+ TMath::Abs(rm[3] - 0.) < kTolerance &&
+ TMath::Abs(rm[4] - 1.) < kTolerance &&
+ TMath::Abs(rm[5] - 0.) < kTolerance &&
+ TMath::Abs(rm[6] - 0.) < kTolerance &&
+ TMath::Abs(rm[7] - 0.) < kTolerance &&
+ TMath::Abs(rm[8] - 1.) < kTolerance) isRotation = false;
+
+ Int_t krot = 0;
+ if (isRotation) {
+ TGeoRotation rot;
+ rot.SetMatrix(const_cast<Double_t*>(transform.GetRotationMatrix()));
+ Double_t theta1, phi1, theta2, phi2, theta3, phi3;
+ rot.GetAngles(theta1, phi1, theta2, phi2, theta3, phi3);
+
+ //cout << "angles: "
+ // << theta1 << " " << phi1 << " "
+ // << theta2 << " " << phi2 << " "
+ // << theta3 << " " << phi3 << endl;
+
+ AliMatrix(krot, theta1, phi1, theta2, phi2, theta3, phi3);
+ }
+
+ // Place the volume in ALIC
+ if (npar == 0)
+ gMC->Gspos(name, copyNo, mName, xyz[0], xyz[1], xyz[2] , krot, only);
+ else
+ gMC->Gsposp(name, copyNo, mName, xyz[0], xyz[1], xyz[2] , krot, only,
+ param, npar);
+
+}
+//___________________________________________
void AliMUONv1::Init()
{
//
( (AliMUONChamber*) (*fChambers)[i])->Init();
}
+ //
+ // Set the chamber (sensitive region) GEANT identifier
+ //
+ for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
+
+ // Get the builder
+ AliMUONVGeometryBuilder* builder
+ = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
+
+ // Set sesitive volumes with each builder
+ if (builder) builder->SetSensitiveVolumes();
+ }
+
+/*
//
// Set the chamber (sensitive region) GEANT identifier
((AliMUONChamber*)(*fChambers)[0])->SetGid(gMC->VolId("S01G"));
((AliMUONChamber*)(*fChambers)[11])->SetGid(gMC->VolId("SG2A"));
((AliMUONChamber*)(*fChambers)[12])->SetGid(gMC->VolId("SG3A"));
((AliMUONChamber*)(*fChambers)[13])->SetGid(gMC->VolId("SG4A"));
-
+*/
if(fDebug) printf("\n%s: Finished Init for version 1 - CPC chamber type\n",ClassName());
//cp
}
if(fDebug) printf("%s: Finished Init for Trigger Circuits\n",ClassName());
//cp
-
}
-//_______________________________________________________________________________
-Int_t AliMUONv1::GetChamberId(Int_t volId) const
-{
-// Check if the volume with specified volId is a sensitive volume (gas)
-// of some chamber and returns the chamber number;
-// if not sensitive volume - return 0.
-// ---
-
- for (Int_t i = 1; i <= AliMUONConstants::NCh(); i++)
- if (volId==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()) return i;
-
- return 0;
-}
//_______________________________________________________________________________
void AliMUONv1::StepManager()
{
// Only gas gap inside chamber
// Tag chambers and record hits when track enters
- Int_t idvol=-1;
+ static Int_t idvol=-1;
Int_t iChamber=0;
Int_t id=0;
Int_t copy;
const Float_t kBig = 1.e10;
+
+ //
+ // Only gas gap inside chamber
+ // Tag chambers and record hits when track enters
id=gMC->CurrentVolID(copy);
- // printf("id == %d \n",id);
- for (Int_t i = 1; i <= AliMUONConstants::NCh(); i++) {
- if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()) {
- iChamber = i;
- idvol = i-1;
- }
- }
- if (idvol == -1) {
- return;
- }
+ iChamber = GetChamberId(id);
+ idvol = iChamber -1;
+
+ if (idvol == -1) return;
if( gMC->IsTrackEntering() ) {
Float_t theta = fTrackMomentum.Theta();
// if (GetDebug()) {
// Info("StepManager Step","iChamber %d, Particle %d, theta %f phi %f mass %f StepSum %f eloss %g",
-// iChamber,ipart, fTrackMomentum.Theta()*kRaddeg, fTrackMomentum.Phi()*kRaddeg, mass, fStepSum[idvol], gMC->Edep());
+// iChamber,ipart, fTrackMomentum.Theta()*kRaddeg, fTrackMomentum.Phi()*kRaddeg, mass, fStepSum[idvol], gMC->Edep());
// Info("StepManager Step","Track Momentum %f %f %f", fTrackMomentum.X(), fTrackMomentum.Y(), fTrackMomentum.Z()) ;
// gMC->TrackPosition(fTrackPosition);
// Info("StepManager Step","Track Position %f %f %f",fTrackPosition.X(),fTrackPosition.Y(),fTrackPosition.Z()) ;
(fStepSum[idvol]>fStepMaxInActiveGas) ) {
if ( gMC->IsTrackExiting() ||
- gMC->IsTrackStop() ||
- gMC->IsTrackDisappeared() ) gMC->SetMaxStep(kBig);
+ gMC->IsTrackStop() ||
+ gMC->IsTrackDisappeared() ) gMC->SetMaxStep(kBig);
gMC->TrackPosition(fTrackPosition);
Float_t theta = fTrackMomentum.Theta();
Float_t phi = fTrackMomentum.Phi();
TLorentzVector backToWire( fStepSum[idvol]/2.*sin(theta)*cos(phi),
- fStepSum[idvol]/2.*sin(theta)*sin(phi),
- fStepSum[idvol]/2.*cos(theta),0.0 );
+ fStepSum[idvol]/2.*sin(theta)*sin(phi),
+ fStepSum[idvol]/2.*cos(theta),0.0 );
// if (GetDebug())
// Info("StepManager Exit","Track Position %f %f %f",fTrackPosition.X(),fTrackPosition.Y(),fTrackPosition.Z()) ;
// if (GetDebug())
// Angle with respect to the wires assuming that chambers are perpendicular to the z axis.
sigmaEffectThetadegrees = sigmaEffect10degrees/fAngleEffectNorma->Eval(thetawires*kRaddeg); // For 5mm gap
if ( (iChamber==1) || (iChamber==2) )
- sigmaEffectThetadegrees/=(1.09833e+00+1.70000e-02*(thetawires*kRaddeg)); // The gap is different (4mm)
+ sigmaEffectThetadegrees/=(1.09833e+00+1.70000e-02*(thetawires*kRaddeg)); // The gap is different (4mm)
yAngleEffect=1.e-04*gRandom->Gaus(0,sigmaEffectThetadegrees); // Error due to the angle effect in cm
}
}
// One hit per chamber
GetMUONData()->AddHit(fIshunt, gAlice->GetMCApp()->GetCurrentTrackNumber(), iChamber, ipart,
- fTrackPosition.X(), fTrackPosition.Y()+yAngleEffect, fTrackPosition.Z(), 0.0,
- fTrackMomentum.P(),theta, phi, fStepSum[idvol], fDestepSum[idvol],
- fTrackPosition.X(),fTrackPosition.Y(),fTrackPosition.Z());
+ fTrackPosition.X(), fTrackPosition.Y()+yAngleEffect, fTrackPosition.Z(), 0.0,
+ fTrackMomentum.P(),theta, phi, fStepSum[idvol], fDestepSum[idvol],
+ fTrackPosition.X(),fTrackPosition.Y(),fTrackPosition.Z());
// if (GetDebug()){
// Info("StepManager Exit","Particle exiting from chamber %d",iChamber);
// Info("StepManager Exit","StepSum %f eloss geant %g ",fStepSum[idvol],fDestepSum[idvol]);
{
// Old Stepmanager for the chambers
Int_t copy, id;
- static Int_t idvol;
+ static Int_t idvol =-1;
static Int_t vol[2];
Int_t ipart;
TLorentzVector pos;
Double_t ty = mom[1]/pmom;
Double_t tz = mom[2]/pmom;
Double_t s = ((AliMUONChamber*)(*fChambers)[idvol])
- ->ResponseModel()
- ->Pitch()/tz;
+ ->ResponseModel()
+ ->Pitch()/tz;
theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
hits[0] = Float_t(ipart); // Geant3 particle type
// if(idvol < AliMUONConstants::NTrackingCh()) {
-// //
-// // Initialize hit position (cursor) in the segmentation model
-// ((AliMUONChamber*) (*fChambers)[idvol])
-// ->SigGenInit(pos[0], pos[1], pos[2]);
+// //
+// // Initialize hit position (cursor) in the segmentation model
+// ((AliMUONChamber*) (*fChambers)[idvol])
+// ->SigGenInit(pos[0], pos[1], pos[2]);
// } else {
-// //geant3->Gpcxyz();
-// //printf("In the Trigger Chamber #%d\n",idvol-9);
+// //geant3->Gpcxyz();
+// //printf("In the Trigger Chamber #%d\n",idvol-9);
// }
}
eloss2+=destep;
if(idvol < AliMUONConstants::NTrackingCh()) {
// tracking chambers
- x0 = 0.5*(xhit+pos[0]);
- y0 = 0.5*(yhit+pos[1]);
- z0 = 0.5*(zhit+pos[2]);
+ x0 = 0.5*(xhit+pos[0]);
+ y0 = 0.5*(yhit+pos[1]);
+ z0 = 0.5*(zhit+pos[2]);
} else {
// trigger chambers
- x0 = xhit;
- y0 = yhit;
- z0 = 0.;
+ x0 = xhit;
+ y0 = yhit;
+ z0 = 0.;
}
// if (eloss >0) MakePadHits(x0,y0,z0,eloss,tof,idvol);
-
+
hits[6] = tlength; // track length
hits[7] = eloss2; // de/dx energy loss
// if (fNPadHits > (Int_t)hits[8]) {
- // hits[8] = hits[8]+1;
- // hits[9] = 0: // PadHits does not exist anymore (Float_t) fNPadHits;
+ // hits[8] = hits[8]+1;
+ // hits[9] = 0: // PadHits does not exist anymore (Float_t) fNPadHits;
//}
//
// new hit
new(lhits[fNhits++])
- AliMUONHit(fIshunt, gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
+ AliMUONHit(fIshunt, gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
eloss = 0;
//
// Check additional signal generation conditions
((AliMUONChamber*) (*fChambers)[idvol])->SigGenCond(pos[0], pos[1], pos[2]))
{
((AliMUONChamber*) (*fChambers)[idvol])
- ->SigGenInit(pos[0], pos[1], pos[2]);
+ ->SigGenInit(pos[0], pos[1], pos[2]);
Float_t localPos[3];
Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
eloss += destep;
// if (eloss > 0 && idvol < AliMUONConstants::NTrackingCh())
- // MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),pos[2],eloss,tof,idvol);
+ // MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),pos[2],eloss,tof,idvol);
xhit = pos[0];
yhit = pos[1];
zhit = pos[2];
tlength += step ;
}
}
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff