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// $Id: MyDetectorConstruction.cc,v 1.39 2006/11/14 16:03:55 allison Exp $
// GEANT4 tag $Name:  $
//
// 
#include "MyDetectorConstruction.hh"

#include "MyDetectorMessenger.hh"
//#include "MyCalorimeterSD.hh"
//#include "MyTrackerSD.hh"
//#include "MyCalorimeterHit.hh"
//#include "MyTrackerHit.hh"

#include "G4Material.hh"
#include "G4MaterialTable.hh"
#include "G4Element.hh"
#include "G4ElementTable.hh"
#include "G4Box.hh"
#include "G4Tubs.hh"
#include "G4Cons.hh"
#include "G4Sphere.hh"
#include "G4Orb.hh"
#include "G4Trap.hh"
#include "G4EllipticalTube.hh"
#include "G4EllipticalCone.hh"
#include "G4Polyhedra.hh"
#include "G4Polycone.hh"
#include "G4Tet.hh"
#include "G4TwistedTubs.hh"
#include "G4TwistedBox.hh"
#include "G4TwistedTrd.hh"
#include "G4TwistedTrap.hh"
#include "G4IntersectionSolid.hh"
#include "G4SubtractionSolid.hh"
#include "G4UnionSolid.hh"
#include "G4DisplacedSolid.hh"
#include "G4LogicalVolume.hh"
#include "G4RotationMatrix.hh"
#include "G4ThreeVector.hh"
#include "G4Transform3D.hh"
#include "G4PVPlacement.hh"
#include "G4PVReplica.hh"
#include "G4SDManager.hh"
#include "G4VisAttributes.hh"
#include "G4Colour.hh"
#include "G4VisExtent.hh"

#include "G4Polyhedron.hh"

MyDetectorConstruction::MyDetectorConstruction()
{
  new MyDetectorMessenger(this);

  expHall_x = 10. * m;
  expHall_y = 10. * m;
  expHall_z = 10. * m;

  calBox_x = 100.*cm;
  calBox_y = 50.*cm;
  calBox_z = 50.*cm;
  rotAngle = 30.*deg;
  calPos = 200.*cm;
  calMaterialName = "Pb";

  trackerRadius = 50.*cm;
  trackerHight = 100.*cm;
  trackerPos = -200.*cm;
}

MyDetectorConstruction::~MyDetectorConstruction()
{
  for (size_t i = 0; i < materialPointerStore.size(); i++) {
    delete materialPointerStore[i];
  }
}

G4VPhysicalVolume* MyDetectorConstruction::Construct()
{

  //------------------------------------------------------ materials

  G4double a, iz, z, density;
  G4String name, symbol;
  G4int nel;

  a = 14.01*g/mole;
  G4Element* elN = new G4Element(name="Nitrogen", symbol="N", iz=7., a);
  a = 16.00*g/mole;
  G4Element* elO = new G4Element(name="Oxygen", symbol="O", iz=8., a);

  density = 1.29e-03*g/cm3;
  G4Material* Air = new G4Material(name="Air", density, nel=2);
  materialPointerStore.push_back(Air);
  Air->AddElement(elN, .7);
  Air->AddElement(elO, .3);

  a = 207.19*g/mole;
  density = 11.35*g/cm3;
  G4Material* Pb = new G4Material(name="Lead", z=82., a, density);
  materialPointerStore.push_back(Pb);

  a = 39.95*g/mole;
  density = 1.782e-03*g/cm3;
  G4Material* Ar = new G4Material(name="ArgonGas", z=18., a, density);
  materialPointerStore.push_back(Ar);

  a = 26.98*g/mole;
  density = 2.7*g/cm3;
  G4Material* Al = new G4Material(name="Aluminum", z=13., a, density);
  materialPointerStore.push_back(Al);

  a = 55.85*g/mole;
  density = 7.87*g/cm3;
  G4Material* Fe = new G4Material(name="Iron", z=26., a, density);
  materialPointerStore.push_back(Fe);

  //------------------------------------------------------ volumes

  //------------------------------ experimental hall
  G4Box * experimentalHall_box
    = new G4Box("expHall_b",expHall_x,expHall_y,expHall_z);
  G4LogicalVolume * experimentalHall_log
    = new G4LogicalVolume(experimentalHall_box,Air,"expHall_L",0,0,0);
  //  G4VisAttributes * experimentalHallVisAtt
  //      = new G4VisAttributes(G4Colour(1.0,1.0,1.0));
  //  experimentalHallVisAtt->SetForceWireframe(true);
  //  experimentalHall_log->SetVisAttributes(experimentalHallVisAtt);
  experimentalHall_log -> SetVisAttributes (&G4VisAttributes::GetInvisible());
  G4VPhysicalVolume * experimentalHall_phys
    = new G4PVPlacement(0,G4ThreeVector(),"expHall_P",
                        experimentalHall_log,0,false,0);

  //------------------------------ calorimeter boxes
  G4Box * calorimeter_box
    = new G4Box("calorimeter_b",calBox_x,calBox_y,calBox_z);
  G4Material* calMat;
  if(calMaterialName=="Pb")
  { calMat = Pb; }
  else if(calMaterialName=="Al")
  { calMat = Al; }
  else if(calMaterialName=="Fe")
  { calMat = Fe; }
  else
  { calMat = Air; }
  G4LogicalVolume * calorimeter_log
    = new G4LogicalVolume(calorimeter_box,calMat,"calo_L",0,0,0);
  G4VisAttributes * calorimeterVisAtt
      = new G4VisAttributes(G4Colour(0.,0.,1.));
  //  calorimeterVisAtt->SetForceWireframe(true);
  calorimeter_log->SetVisAttributes(calorimeterVisAtt);
  G4VPhysicalVolume* calo_phys;
  for(G4int i=0;i<3;i++)
  {
    G4RotationMatrix rm;
    rm.rotateZ(i*rotAngle);
    rm.print(G4cout);
    calo_phys =
    new G4PVPlacement(G4Transform3D(rm,G4ThreeVector(0.*cm,i*calPos,0.*cm)),
                      "calo_phys",calorimeter_log,experimentalHall_phys,
                      false,i);
    calo_phys->GetObjectRotationValue().print(G4cout);
  }

  //------------------------------ tracker tube
  G4Tubs * tracker_tube
    = new G4Tubs("tracker_tube",0.*cm,trackerRadius,trackerHight,
                 0.*deg,360.*deg);
  /*
  G4cout << "Tracker tube polyhedron:\n"
	 << (HepPolyhedron)(*(tracker_tube->GetPolyhedron())) << G4endl;
  */
  G4LogicalVolume * tracker_log
    = new G4LogicalVolume(tracker_tube,Ar,"tracker_L",0,0,0);
  G4VisAttributes * trackerVisAtt
    = new G4VisAttributes(G4Colour(0.,0.,1.));
  //  trackerVisAtt->SetForceWireframe(true);
  tracker_log->SetVisAttributes(trackerVisAtt);
  //////////////............
  G4RotationMatrix* tracker_rm = new G4RotationMatrix;
  tracker_rm->rotateY(-30.*deg);
  tracker_rm->print(G4cout);
  G4VPhysicalVolume* tracker_phys =
  //new G4PVPlacement(tracker_rm,G4ThreeVector(0.*cm,trackerPos,200.*cm),
  new G4PVPlacement(G4Transform3D(*tracker_rm,G4ThreeVector(0.*cm,trackerPos,200.*cm)),
  //////////////............
  //new G4PVPlacement(0,G4ThreeVector(0.*cm,trackerPos,0.*cm),
                    "tracker_phys",tracker_log,experimentalHall_phys,
                    false,0);
  tracker_phys->GetObjectRotationValue().print(G4cout);

  //------------------------------ displaced box
  G4Box * undisplaced_box = new G4Box("undisplaced_box",30.*cm,50.*cm,70.*cm);
  G4RotationMatrix rm_db;
  rm_db.rotateZ(20.*deg);
  G4DisplacedSolid* displaced_box = new G4DisplacedSolid
    ("displaced_box",undisplaced_box,
     G4Transform3D(rm_db,G4ThreeVector(200.*cm,0.,0.)));
  G4cout << "Displaced box extent:\n" << displaced_box->GetExtent() << G4endl;
  G4LogicalVolume * displaced_box_log
    = new G4LogicalVolume(displaced_box,Ar,"displaced_box_L",0,0,0);
  new G4PVPlacement(0,G4ThreeVector(0.*cm,-200.*cm,0.*cm),
                    "displaced_box_phys",displaced_box_log,
		    experimentalHall_phys,
                    false,0);

  //-------------------------------------------- Boolean solids

  G4Tubs* cylinder1 = new G4Tubs("Cylinder #1",20*cm,50*cm,30*cm,0,2*pi);
  G4Box* box1 = new G4Box("Box #1",20*cm,30*cm,40*cm);
  G4Box* box2 = new G4Box("Box #2",10*cm,20*cm,35*cm);
  G4RotationMatrix* rm1 = new G4RotationMatrix;
  rm1->rotateZ(20*deg);
  G4RotationMatrix* rm2 = new G4RotationMatrix;
  rm2->rotateZ(60*deg);

  G4IntersectionSolid* cyl1Ibox1 =
    new G4IntersectionSolid("cylinder1-intersection-box1", cylinder1, box1,
		     rm1,G4ThreeVector(30.01*cm,30.01*cm,0.01*cm));
  G4cout << "cylinder1-intersection-box1 extent:\n"
	 << cyl1Ibox1->GetExtent() << G4endl;
  G4IntersectionSolid* cyl1Ibox1Ibox2 =
    new G4IntersectionSolid("cylinder1-intersection-box1-intersection-box2", cyl1Ibox1, box2,
		     rm2,G4ThreeVector(0.01,40.01*cm,0.01*cm));
  G4cout << "cylinder1-intersection-box1-intersection-box2 extent:\n"
	 << cyl1Ibox1Ibox2->GetExtent() << G4endl;
  G4LogicalVolume * intersection_log
    = new G4LogicalVolume(cyl1Ibox1Ibox2,Ar,"intersection_L",0,0,0);
  const G4VisAttributes* bool_red =
    new G4VisAttributes(G4Colour(1.,0.,0.));
  intersection_log->SetVisAttributes(bool_red);
  new G4PVPlacement(0,G4ThreeVector(100.*cm,-50*cm,0.*cm),
                    "intersection_phys",intersection_log,experimentalHall_phys,
                    true,0);

  G4SubtractionSolid* cyl1Sbox1 =
    new G4SubtractionSolid("cylinder1-subtraction-box1", cylinder1, box1,
		     rm1,G4ThreeVector(30.*cm,30.*cm,1.*cm));
  G4SubtractionSolid* cyl1Sbox1Sbox2 =
    new G4SubtractionSolid("cylinder1-subtraction-box1-subtraction-box2", cyl1Sbox1, box2,
		     rm2,G4ThreeVector(0.,40*cm,2.*cm));
  G4LogicalVolume * subtraction_log
    = new G4LogicalVolume(cyl1Sbox1Sbox2,Ar,"subtraction_L",0,0,0);
  const G4VisAttributes* bool_green =
    new G4VisAttributes(G4Colour(0.,1.,0.));
  subtraction_log->SetVisAttributes(bool_green);
  new G4PVPlacement(0,G4ThreeVector(200.*cm,-50*cm,0.*cm),
                    "subtraction_phys",subtraction_log,experimentalHall_phys,
                    true,0);

  G4UnionSolid* cyl1Ubox1 =
    new G4UnionSolid("cylinder1-union-box1", cylinder1, box1,
		     rm1,G4ThreeVector(30.*cm,30.*cm,1.*cm));
  G4UnionSolid* cyl1Ubox1Ubox2 =
    new G4UnionSolid("cylinder1-union-box1-union-box2", cyl1Ubox1, box2,
		     rm2,G4ThreeVector(0.,40*cm,2.*cm));
  G4LogicalVolume * union_log
    = new G4LogicalVolume(cyl1Ubox1Ubox2,Ar,"union_L",0,0,0);
  const G4VisAttributes* bool_blue =
    new G4VisAttributes(G4Colour(0.,0.,1.));
  union_log->SetVisAttributes(bool_blue);
  new G4PVPlacement(0,G4ThreeVector(350.*cm,-50*cm,0.*cm),
                    "union_phys",union_log,experimentalHall_phys,
                    true,0);

  //----------- Tubes, replicas(!?) and daughter boxes

  const G4double eps = 10 * mm;
  const G4double alp = 10 * mrad;

  G4VisAttributes * grey
    = new G4VisAttributes(G4Colour(0.5,0.5,0.5,0.1));


  G4double tube_dPhi = twopi;
  G4Tubs* tube = new G4Tubs("tube",20*cm,50*cm,30*cm,0.,tube_dPhi);
  G4LogicalVolume * tube_log
    = new G4LogicalVolume(tube,Ar,"tube_L",0,0,0);
  G4VisAttributes * tube_VisAtt
    = new G4VisAttributes(G4Colour(0.,1.,0.,0.1));
  //  tube_log->SetVisAttributes(tube_VisAtt);
  tube_log->SetVisAttributes(G4VisAttributes::GetInvisible());
  new G4PVPlacement(0,G4ThreeVector(-200.*cm,0.,0.*cm),
                    "tube_phys",tube_log,experimentalHall_phys,
                    false,0);

  G4double divided_tube_dPhi = tube_dPhi / 6.;
  G4Tubs* divided_tube = new G4Tubs
    ("divided_tube",
     20*cm,50*cm,30*cm,-divided_tube_dPhi/2.,divided_tube_dPhi);
  G4LogicalVolume * divided_tube_log
    = new G4LogicalVolume(divided_tube,Ar,"divided_tube_L",0,0,0);
  divided_tube_log->SetVisAttributes(grey);
  new G4PVReplica("divided_tube_phys",divided_tube_log,tube_log,
  		  kPhi,6,divided_tube_dPhi);
  /************ 
  G4int iCopy;
  for (iCopy = 0; iCopy < 6; iCopy++) {
    new G4PVPlacement
      (G4Transform3D
       (G4RotationMatrix().rotateZ(divided_tube_dPhi/2.+iCopy*pi/3.),
	G4ThreeVector()),
       divided_tube_log,"divided_tube_phys",tube_log,
       false,iCopy);
  }
  *********/

  G4double divided_tube_inset_dPhi = divided_tube_dPhi - 2. * alp;
  G4Tubs* divided_tube_inset = new G4Tubs
    ("divided_tube_inset",
     20*cm+eps,50*cm-eps,30*cm-eps,
     -divided_tube_inset_dPhi/2.,
     divided_tube_inset_dPhi);
  G4LogicalVolume * divided_tube_inset_log
    = new G4LogicalVolume(divided_tube_inset,Ar,"divided_tube_inset_L",0,0,0);
  G4VisAttributes * divided_tube_inset_VisAtt
    = new G4VisAttributes(G4Colour(1.,0.,0.,0.2));
  //  divided_tube_inset_log->SetVisAttributes(divided_tube_inset_VisAtt);
  divided_tube_inset_log->SetVisAttributes(G4VisAttributes::Invisible);
  new G4PVPlacement(0,G4ThreeVector(),
                    divided_tube_inset_log,"divided_tube_inset_phys",
		    divided_tube_log,false,0);

  G4double sub_divided_tube_dPhi = divided_tube_inset_dPhi / 4.;
  G4Tubs* sub_divided_tube = new G4Tubs
    ("sub_divided_tube",
     20*cm+eps,50*cm-eps,30*cm-eps,
     -sub_divided_tube_dPhi/2.,sub_divided_tube_dPhi);
  G4LogicalVolume * sub_divided_tube_log
    = new G4LogicalVolume(sub_divided_tube,Ar,"sub_divided_tube_L",0,0,0);
  sub_divided_tube_log->SetVisAttributes(grey);
  new G4PVReplica("sub_divided_tube_phys",
  		  sub_divided_tube_log,divided_tube_inset_log,
		  kPhi,4,sub_divided_tube_dPhi,-divided_tube_inset_dPhi/2.);
  /************ 
  for (iCopy = 0; iCopy < 4; iCopy++) {
    new G4PVPlacement
      (G4Transform3D
       (G4RotationMatrix().rotateZ
	(-divided_tube_inset_dPhi/2.
	 +(iCopy+0.5)*sub_divided_tube_dPhi),
        G4ThreeVector()),
       sub_divided_tube_log,"sub_divided_tube_phys",divided_tube_inset_log,
       false,iCopy);
  }
  ************/
  
  G4Box* daughter_box = new G4Box("daughter_box",4.*cm,3.*cm,25.*cm);
  G4LogicalVolume * daughter_box_log
    = new G4LogicalVolume(daughter_box,Ar,"daughter_box_L",0,0,0);
  G4VisAttributes * daughter_box_VisAtt
    = new G4VisAttributes(G4Colour(0.,0.,1.,0.3));
  daughter_box_log->SetVisAttributes(daughter_box_VisAtt);
  G4Box* grand_daughter_box = new G4Box("grand_daughter_box",1*cm,2*cm,5*cm);
  G4LogicalVolume * grand_daughter_box_log
    = new G4LogicalVolume(grand_daughter_box,Ar,"grand_daughter_box_L",0,0,0);
  G4VisAttributes * grand_daughter_box_VisAtt
    = new G4VisAttributes(G4Colour(1.,1.,0.));
  grand_daughter_box_log->SetVisAttributes(grand_daughter_box_VisAtt);
  G4Box* grand_daughter_box2 = new G4Box("grand_daughter_box2",1*cm,2*cm,5*cm);
  G4LogicalVolume * grand_daughter_box2_log
    = new G4LogicalVolume
    (grand_daughter_box2,Ar,"grand_daughter_box2_L",0,0,0);
  G4VisAttributes * grand_daughter_box2_VisAtt
    = new G4VisAttributes(G4Colour(1.,0.,1.));
  grand_daughter_box2_log->SetVisAttributes(grand_daughter_box2_VisAtt);
  new G4PVPlacement(0,G4ThreeVector(-2*cm,0.,0.),
                    grand_daughter_box_log,"grand_daughter_box_phys",
		    daughter_box_log,false,0);
  new G4PVPlacement(0,G4ThreeVector(2*cm,0.,0.),
                    grand_daughter_box2_log,"grand_daughter_box2_phys",
		    daughter_box_log,false,0);
  new G4PVPlacement(0,G4ThreeVector(40*cm,0.,0.),
                    daughter_box_log,"daughter_box_phys",
		    sub_divided_tube_log,false,0);

  //------------------------------------------------ Extra placements
  // For good measure, as a test of drawn volume path, place in one of
  // the earlier volumes...
  new G4PVPlacement(0,G4ThreeVector(),
                    "divided_tube_inset_phys",divided_tube_inset_log,
		    calo_phys,false,0);  // Place in PV.
  new G4PVPlacement(0,G4ThreeVector(),
                    grand_daughter_box2_log,"grand_daughter_box2_phys",
		    calorimeter_log,false,0);  // Place in LV.  Same effect.

  //------------------------------------------------ sensitive detectors
  /****************
  G4SDManager* SDman = G4SDManager::GetSDMpointer();

  G4String calorimeterSDname = "example2/calorimeter";
  MyCalorimeterSD * myCalorimeterSD = new MyCalorimeterSD( calorimeterSDname );
  SDman->AddNewDetector( myCalorimeterSD );
  calorimeter_log->SetSensitiveDetector( myCalorimeterSD );

  G4String trackerSDname = "example2/tracker";
  MyTrackerSD * myTrackerSD = new MyTrackerSD( trackerSDname );
  SDman->AddNewDetector( myTrackerSD );
  tracker_log->SetSensitiveDetector( myTrackerSD );
  ******************/

  //-------------------------------------------- Sphere

  G4Sphere* PD_vol_crystal
      = new G4Sphere("Test_Sphere",
                     100.*cm,           // inner radius
                     200.*cm,           // outer radius
                     0.,                // start phi
                     90.*degree,         // delta phi
                     0.,                // start theta
                     90.*degree          // delta theta
                     );


  G4LogicalVolume* PD_log_crystal
    = new G4LogicalVolume(PD_vol_crystal,Ar,"Test_Sphere");

  G4VisAttributes * PD_att_crystal
    = new G4VisAttributes(G4Colour(1.,0.,1.));
  PD_att_crystal->SetForceAuxEdgeVisible(true);
  PD_att_crystal->SetForceLineSegmentsPerCircle(100);
  PD_log_crystal->SetVisAttributes(PD_att_crystal);

  G4RotationMatrix rm;

  new G4PVPlacement(G4Transform3D(rm,G4ThreeVector(200.*cm,300.*cm,0)),
		    "PD_physical", PD_log_crystal,
		    experimentalHall_phys,false,0);

//-------------------------------------------- Polyhedra and Polycone

  const G4int numRZ = 10;
  G4double polyhedra_r[] = {0,5,3,4,9,9,3,3,2,0};
  G4double polyhedra_z[] = {0,1,2,3,0,5,4,3,2,1};
  for (int i = 0; i < numRZ; ++i) {
    polyhedra_r[i] *= 10*cm;
    polyhedra_z[i] *= 10.*cm;
  }

  G4Polyhedra* polyhedra_solid
      = new G4Polyhedra("Polyhedra_Test",
			0.,270.*deg,6,numRZ,polyhedra_r,polyhedra_z);
                        //0.,twopi,6,numRZ,polyhedra_r,polyhedra_z);
  G4cout << polyhedra_solid->StreamInfo(G4cout) << G4endl;

  G4LogicalVolume* polyhedra_log
    = new G4LogicalVolume(polyhedra_solid,Ar,"Polyhedra_Test");

  G4VisAttributes * polyhedra_atts
    = new G4VisAttributes(G4Colour(0.,1.,1.));
  polyhedra_log->SetVisAttributes(polyhedra_atts);

  new G4PVPlacement(G4Transform3D(rm,G4ThreeVector(200.*cm,100.*cm,0)),
		    "Polyhedra_Test", polyhedra_log,
		    experimentalHall_phys,false,0);

  const G4int numRZ1 = 10;
  G4double polycone_r[] = {1,5,3,4,9,9,3,3,2,1};
  G4double polycone_z[] = {0,1,2,3,0,5,4,3,2,1};
  for (int i = 0; i < numRZ1; ++i) {
    polycone_r[i] *= 10*cm;
    polycone_z[i] *= 10.*cm;
  }

  G4Polycone* polycone_solid
      = new G4Polycone("Polycone_Test",
		       0.*deg,270.*deg,numRZ1,polycone_r,polycone_z);
                       //0.,twopi,numRZ,polycone_r,polycone_z);
  G4cout << polycone_solid->StreamInfo(G4cout) << G4endl;

  G4LogicalVolume* polycone_log
    = new G4LogicalVolume(polycone_solid,Ar,"Polycone_Test");

  G4VisAttributes * polycone_atts
    = new G4VisAttributes(G4Colour(1.,0.5,0.5));
  polycone_log->SetVisAttributes(polycone_atts);

  new G4PVPlacement(G4Transform3D(rm,G4ThreeVector(400.*cm,120.*cm,0)),
		    "Polycone_Test", polycone_log,
		    experimentalHall_phys,false,0);

  //-------------------------------------------- Orb

  G4Orb* orb 
    = new G4Orb("Test orb", 100.*cm);

  G4LogicalVolume* orb_log
    = new G4LogicalVolume(orb, Ar,"Test_orb");

  G4VisAttributes * orb_att
    = new G4VisAttributes(G4Colour(1.,0.,1.));
  orb_att->SetForceAuxEdgeVisible(true);
  orb_log->SetVisAttributes(orb_att);

  new G4PVPlacement(G4Translate3D(-300.*cm,200.*cm,0),
		    "Test orb", orb_log, 
		    experimentalHall_phys,false,0);

  //-------------------------------------------- Trapezoid

  G4Trap* trap1_solid = new G4Trap
    ("trap1_solid",
     50.*cm,  //      pDz     Half-length along the z-axis
     0.,      //      pTheta  Polar angle of the line joining the centres of the faces
              //              at -/+pDz
     0.,      //      pPhi    Azimuthal angle of the line joing the centre of the face at
              //              -pDz to the centre of the face at +pDz
     40.*cm,  //      pDy1     Half-length along y of the face at -pDz
     30.*cm,  //      pDx1    Half-length along x of the side at y=-pDy1 of the face at -pDz
     30.*cm,  //      pDx2    Half-length along x of the side at y=+pDy1 of the face at -pDz
     20.*deg, //      pAlp1   Angle with respect to the y axis from the centre of the side
              //              at y=-pDy1 to the centre at y=+pDy1 of the face at -pDz
     40.*cm,  //      pDy2     Half-length along y of the face at +pDz
     30.*cm,  //      pDx3    Half-length along x of the side at y=-pDy2 of the face at +pDz
     30.*cm,  //      pDx4    Half-length along x of the side at y=+pDy2 of the face at +pDz
     20.*deg  //      pAlp2   Angle with respect to the y axis from the centre of the side
              //              at y=-pDy2 to the centre at y=+pDy2 of the face at +pDz
     );
  G4LogicalVolume* trap1_log = new G4LogicalVolume (trap1_solid,Ar,"trap1_log");
  new G4PVPlacement
    (G4Transform3D(rm,G4ThreeVector(-200.*cm,200.*cm,-200.*cm)),
     "trap1_phys", trap1_log,
     experimentalHall_phys,false,0);

  G4Trap* trap2_solid = new G4Trap
    ("trap2_solid",
     50.*cm,  //      pDz     Half-length along the z-axis
     20.*deg, //      pTheta  Polar angle of the line joining the centres of the faces
              //              at -/+pDz
     90.*deg, //      pPhi    Azimuthal angle of the line joing the centre of the face at
              //              -pDz to the centre of the face at +pDz
     40.*cm,  //      pDy1     Half-length along y of the face at -pDz
     30.*cm,  //      pDx1    Half-length along x of the side at y=-pDy1 of the face at -pDz
     30.*cm,  //      pDx2    Half-length along x of the side at y=+pDy1 of the face at -pDz
     0.,      //      pAlp1   Angle with respect to the y axis from the centre of the side
              //              at y=-pDy1 to the centre at y=+pDy1 of the face at -pDz
     40.*cm,  //      pDy2     Half-length along y of the face at +pDz
     30.*cm,  //      pDx3    Half-length along x of the side at y=-pDy2 of the face at +pDz
     30.*cm,  //      pDx4    Half-length along x of the side at y=+pDy2 of the face at +pDz
     0.       //      pAlp2   Angle with respect to the y axis from the centre of the side
              //              at y=-pDy2 to the centre at y=+pDy2 of the face at +pDz
     );
  G4LogicalVolume* trap2_log = new G4LogicalVolume (trap2_solid,Ar,"trap2_log");
  new G4PVPlacement
    (G4Transform3D(rm,G4ThreeVector(-200.*cm,400.*cm,-200.*cm)),
     "trap2_phys", trap2_log,
     experimentalHall_phys,false,0);

  //-------------------------------------------- Elliptical Tube
  G4VSolid* eTube = new G4EllipticalTube("e-tube",100.*cm,50.*cm,100.*cm);
  G4LogicalVolume* eTubeLog = new G4LogicalVolume(eTube,Ar,"e-tube-log");
  new G4PVPlacement(G4Translate3D(G4ThreeVector(-400.*cm,0.,0)),
		    "e-tube-phys", eTubeLog,
		    experimentalHall_phys,false,0);

  //-------------------------------------------- Elliptical Cone
  G4VSolid* eCone = new G4EllipticalCone("e-cone",50.*cm,100.*cm,100.*cm,50.*cm);
  //G4VSolid* eCone = new G4EllipticalCone("e-cone",1.*mm,0.5*mm,40.*mm,20.*mm);
  G4LogicalVolume* eConeLog = new G4LogicalVolume(eCone,Ar,"e-cone-log");
  new G4PVPlacement(G4Translate3D(G4ThreeVector(-500.*cm,400.*cm,0)),
		    "e-cone-phys", eConeLog,
		    experimentalHall_phys,false,0);

  //-------------------------------------------- G4Cons
  G4VSolid* eCons = new G4Cons("e-cons",50.*cm,70.*cm,100.*cm,140.*cm,200.*cm,0,twopi);
  G4LogicalVolume* eConsLog = new G4LogicalVolume(eCons,Ar,"e-cons-log");
  new G4PVPlacement(G4Translate3D(G4ThreeVector(-300.*cm,-200.*cm,60*cm)),
		    "e-cons-phys", eConsLog,
		    experimentalHall_phys,false,0);

  /*
  //--------------------------- Simple shared logical volume tree

  G4VSolid* boxTwo = new G4Box("Box2", 100.*cm, 100.*cm, 100.*cm);
  G4LogicalVolume* log2 = new G4LogicalVolume(boxTwo,Ar,"Log2");
  new G4PVPlacement(G4Translate3D(G4ThreeVector(600.*cm,0.,0.)),
		    "B",log2,
		    experimentalHall_phys,false,0);
  new G4PVPlacement(G4Translate3D(G4ThreeVector(900.*cm,0.,0.)),
		    "C",log2,
		    experimentalHall_phys,false,0);
  G4VSolid* boxThree = new G4Box("Box3", 50.*cm, 50.*cm, 50.*cm);
  G4LogicalVolume* log3 = new G4LogicalVolume(boxThree,Ar,"Log3");
  new G4PVPlacement(G4Translate3D(),
		    log3,"D",
		    log2,false,0);
  G4VSolid* boxFour = new G4Box("Box3", 30.*cm, 30.*cm, 30.*cm);
  G4LogicalVolume* log4 = new G4LogicalVolume(boxFour,Ar,"Log4");
  new G4PVPlacement(G4Translate3D(),
		    log4,"E",
		    log3,false,0);
  */

  /*
  //--------------------------- Boolean for logical volume test

  G4double alSLayer_x = 30.*cm;
  G4double alSLayer_y = 50.*cm;
  G4double alSLayer_z = 2.5*cm;

  G4Box* box1B = new
    G4Box("alSLayer_box",alSLayer_x/2.,alSLayer_y/2.,alSLayer_z/2.);

  G4Tubs* Cylinder1 = new G4Tubs("Cylinder#1",0.*mm,alSLayer_x/2.,alSLayer_x/2.,0.,2.*M_PI); 

  G4UnionSolid* b1UnionC1 = new G4UnionSolid("Box+Cylinder", box1B,
			 Cylinder1); 

  G4LogicalVolume* alSpaceCraft_log = new
    G4LogicalVolume(b1UnionC1,Al,"alLayer_log",0,0,0);  

  new G4PVPlacement(0,G4ThreeVector(900.*cm, 200.*cm, 0.),alSpaceCraft_log,"alLayer_phys",experimentalHall_log,false,0);
  // new G4PVPlacement(G4Translate3D(G4ThreeVector(900.*cm, 200.*cm, 0.)),"alLayer_phys",alSpaceCraft_log,experimentalHall_log,false,0);
  */

  //----------- Radially replicated tube sector

  G4double rMin = 50.*cm;
  G4double DeltaR = 50.*cm;
  G4VSolid* rrTubs = new G4Tubs
    ("rrTubs",rMin,rMin + DeltaR,200*cm,180*deg,90*deg);
  G4LogicalVolume* rrTubsLog = new G4LogicalVolume
    (rrTubs,Ar,"rrTubs-log");
  rrTubsLog->SetVisAttributes(G4VisAttributes::Invisible);
  new G4PVPlacement(G4Translate3D(G4ThreeVector(400.*cm,-200.*cm,0)),
		    "rrTubs-phys", rrTubsLog,
		    experimentalHall_phys,false,0);
  G4double deltaR = DeltaR / 6.;
  G4Tubs* drrTubs = new G4Tubs
    ("drrTubs",rMin,rMin + deltaR,200*cm,180*deg,90*deg);
  G4LogicalVolume * drrTubsLog = new G4LogicalVolume
    (drrTubs,Ar,"drrTubs-log");
  drrTubsLog->SetVisAttributes(G4Colour::Red());
  new G4PVReplica("drrTubs-phys",drrTubsLog,rrTubsLog,
  		  kRho,6,deltaR,rMin);


  //----------- tetrahedron

  G4VSolid* tet = new G4Tet
    ("tet",
     G4ThreeVector(),
     G4ThreeVector(0.,100.*cm,0.),
     G4ThreeVector(0.,0.,100.*cm),
     G4ThreeVector(100*cm,0.,0.));
  G4LogicalVolume* tet_log = new G4LogicalVolume
    (tet,Ar,"tet-log");
  tet_log->SetVisAttributes(G4VisAttributes(G4Colour(0.,1.,0.)));
  new G4PVPlacement
    (G4Translate3D(G4ThreeVector(300.*cm,-400.*cm,0.)),
     "tet-phys", tet_log,
     experimentalHall_phys,false,0);

  //----------- Twisted solids

  G4VSolid* aVolume;
  G4LogicalVolume* aLog;
  G4double fTrackerR1 ;   // r1
  G4double fTrackerR2 ;   // r2
  G4double fTrackerpDz  ;  // Full length of Tracker (pDz)
  G4double fTrackerpDx1 ;  // twisted Trapezoid
  G4double fTrackerpDx2 ;
  G4double fTrackerpDy1 ;
  G4double fTrackerpDy2 ;
  G4double fTwistAngle ;
  G4double fPhi ;

  G4double myScale = 5.;

  fTwistAngle = 90*deg ;
  fTrackerpDz = myScale*20*cm ;
  fTrackerR1  = myScale*7*cm ;
  fTrackerR2  = myScale*10*cm ;
  fPhi        = 180*deg ;

  aVolume = new G4TwistedTubs
    ("aTwistedTubs", fTwistAngle, fTrackerR1, fTrackerR2, fTrackerpDz, fPhi ) ;
  //G4cout << "aTwistedTubs: volume: " << aVolume->GetCubicVolume() << G4endl;
  aLog = new G4LogicalVolume
    (aVolume,Ar,"aTwistedTubs-log");
  aLog->SetVisAttributes(G4VisAttributes(G4Colour(1.,1.,0.)));
  //  Comment out this G4PVPlacement to get voxelisation crash...
  new G4PVPlacement
    (G4Translate3D(G4ThreeVector(200.*cm,-400.*cm,0.)),
     "aTwistedTubs-phys", aLog, experimentalHall_phys,false,0);

  fTwistAngle = 50*deg ;
  fTrackerpDx1 = myScale*4*cm ;
  fTrackerpDy1 = myScale*6*cm ;
  fTrackerpDz  = myScale*15*cm ;

  aVolume = new G4TwistedBox
    ("aTwistedBox",fTwistAngle,fTrackerpDx1,fTrackerpDy1,fTrackerpDz) ;
  aLog = new G4LogicalVolume
    (aVolume,Ar,"aTwistedBox-log");
  aLog->SetVisAttributes(G4VisAttributes(G4Colour(1.,1.,0.)));
  //  Comment out this G4PVPlacement to get voxelisation crash...
  new G4PVPlacement
    (G4Translate3D(G4ThreeVector(100.*cm,-400.*cm,0.)),
     "aTwistedBox-phys", aLog, experimentalHall_phys,false,0);

  fTrackerpDx1 = myScale*4*cm ;
  fTrackerpDx2 = myScale*7*cm ;
  fTrackerpDy1 = myScale*2*cm ;
  fTrackerpDy2 = myScale*4*cm ;
  fTrackerpDz  = myScale*15*cm ;
  fTwistAngle = 50*deg ;

  aVolume = new G4TwistedTrd
    ("aTwistedTrd",fTrackerpDx1,fTrackerpDx2,fTrackerpDy1,fTrackerpDy2,
     fTrackerpDz,fTwistAngle);
  aLog = new G4LogicalVolume
    (aVolume,Ar,"aTwistedTrd-log");
  aLog->SetVisAttributes(G4VisAttributes(G4Colour(1.,1.,0.)));
  new G4PVPlacement
    (G4Translate3D(G4ThreeVector(000.*cm,-400.*cm,0.)),
     "aTwistedTrd-phys", aLog, experimentalHall_phys,false,0);

  fTrackerpDx1 = myScale*4*cm ;
  fTrackerpDx2 = myScale*7*cm ;
  fTrackerpDy1 = myScale*2*cm ;
  fTrackerpDy2 = myScale*4*cm ;
  fTrackerpDz  = myScale*15*cm ;
  fTwistAngle = 50*deg ;

  aVolume = new G4TwistedTrd
    ("anotherTwistedTrd",fTrackerpDx1,fTrackerpDx2,fTrackerpDy1,fTrackerpDy2,
     fTrackerpDz,fTwistAngle);
  aLog = new G4LogicalVolume
    (aVolume,Ar,"anotherTwistedTrd-log");
  aLog->SetVisAttributes(G4VisAttributes(G4Colour(1.,1.,0.)));
  new G4PVPlacement
    (G4Translate3D(G4ThreeVector(-100.*cm,-400.*cm,0.)),
     "anotherTwistedTrd-phys", aLog, experimentalHall_phys,false,0);

  //-------------------------------------------- return
  return experimentalHall_phys;
}
