{

// Heat screen panel

//

auto vmc = TVirtualMC::GetMC();

const int kAir = mAirMedID;

const int kAlu = mAluMedID;

float dx, dy;

char mname[16];

char cname[16];

char t1name[16];

char t2name[16];

char t3name[16];

char t4name[16];

char t5name[16];

//

float dxP = 2. * (287. * TMath::Sin(10. * TMath::Pi() / 180.) - 2.);

float dzP = 1.05;

//

// Mother volume

float thshM[3];

thshM[0] = dxP / 2.;

thshM[1] = dyP / 2.;

thshM[2] = dzP / 2.;

snprintf(mname, 16, "BTSH_%s", name);

vmc->Gsvolu(mname, "BOX ", kAir, thshM, 3);

//

// Aluminum sheet

thshM[2] = 0.025;

snprintf(cname, 16, "BTSHA_%s", name);

vmc->Gsvolu(cname, "BOX ", kAlu, thshM, 3);

vmc->Gspos(cname, 1, mname, 0., 0., -0.5, 0);

//

// Tubes

float thshT[3];

thshT[0] = 0.4;

thshT[1] = 0.5;

thshT[2] = (dyP / 2. - 8.);

//

snprintf(t1name, 16, "BTSHT1_%s", name);

vmc->Gsvolu(t1name, "TUBE", kAlu, thshT, 3);

dx = -dxP / 2. + 8. - 0.5;

vmc->Gspos(t1name, 1, mname, dx, 0., 0.025, rot1);

//

snprintf(t2name, 16, "BTSHT2_%s", name);

snprintf(t3name, 16, "BTSHT3_%s", name);

snprintf(t4name, 16, "BTSHT4_%s", name);

snprintf(t5name, 16, "BTSHT5_%s", name);

thshT[2] = (thshM[1] - 12.);

vmc->Gsvolu(t2name, "TUBE", kAlu, thshT, 3);

thshT[2] = 7.9 / 2.;

vmc->Gsvolu(t3name, "TUBE", kAlu, thshT, 3);

thshT[2] = 23.9 / 2.;

vmc->Gsvolu(t4name, "TUBE", kAlu, thshT, 3);

int sig = 1;

int ipo = 1;

for (int i = 0; i < 5; i++) {

sig *= -1;

dx += 8.00;

dy = 4. * sig;

float dy1 = -(thshM[1] - 15.5) * sig;

float dy2 = -(thshM[1] - 7.5) * sig;

vmc->Gspos(t2name, ipo++, mname, dx, dy, 0.025, rot1);

dx += 6.9;

vmc->Gspos(t2name, ipo++, mname, dx, dy, 0.025, rot1);

vmc->Gspos(t3name, i + 1, mname, dx - 3.45, dy1, 0.025, rot2);

vmc->Gspos(t4name, i + 1, mname, dx - 3.45, dy2, 0.025, rot2);

}

dx += 8.;

vmc->Gspos(t1name, 2, mname, dx, 0., 0.025, rot1);

vmc->Gspos(t3name, 6, mname, dx - 3.45, -(thshM[1] - 7.5), 0.025, rot2);

{

//

// Create a web frame element

//

auto vmc = TVirtualMC::GetMC();

phi0 = 0.;

const float krad2deg = 180. / TMath::Pi();

const float kdeg2rad = 1. / krad2deg;

const int kAir = mAirMedID;

const int kSteel = mSteelMedID;

float ptrap[11];

char nameA[16];

snprintf(nameA, 16, "%sA", name);

char nameI[16];

snprintf(nameI, 16, "%sI", name);

theta0 *= kdeg2rad;

phi0 *= kdeg2rad;

float theta = TMath::Pi() / 2.;

float phi = TMath::ACos(TMath::Cos(theta0) * TMath::Cos(phi0));

if (phi0 < 0) {

phi = -phi;

}

phi *= krad2deg;

theta *= krad2deg;

ptrap[0] = dHz / 2;

ptrap[2] = theta;

ptrap[1] = phi;

ptrap[3] = 6. / cos(theta0 * kdeg2rad) / 2.;

ptrap[4] = 1.;

ptrap[5] = ptrap[4];

ptrap[6] = 0;

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

ptrap[10] = 0;

vmc->Gsvolu(name, "TRAP", kSteel, ptrap, 11);

vmc->Gsvolu(nameI, "TRAP", kSteel, ptrap, 11);

ptrap[3] = (6. - 1.) / cos(theta0 * kdeg2rad) / 2.;

ptrap[4] = 0.75;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu(nameA, "TRAP", kAir, ptrap, 11);

vmc->Gspos(nameA, 1, name, -0.25, 0.0, 0., 0, "ONLY");

vmc->Gspos(nameA, 2, nameI, +0.25, 0.0, 0., 0, "ONLY");

gGeoManager->GetVolume(name)->SetVisContainers();

gGeoManager->GetVolume(nameI)->SetVisContainers();

{

auto& matmgr = o2::base::MaterialManager::Instance();

// Creates the materials

float epsil, stemax, tmaxfd, deemax, stmin;

epsil = 1.e-4; // Tracking precision,

stemax = -0.01; // Maximum displacement for multiple scat

tmaxfd = -20.; // Maximum angle due to field deflection

deemax = -.3; // Maximum fractional energy loss, DLS

stmin = -.8;

int isxfld = 2; // field uniformity value as defined by Geant3

float sxmgmx = 10.; // max field

o2::base::Detector::initFieldTrackingParams(isxfld, sxmgmx);

float asteel[4] = {55.847, 51.9961, 58.6934, 28.0855};

float zsteel[4] = {26., 24., 28., 14.};

float wsteel[4] = {.715, .18, .1, .005};

// Air

float aAir[4] = {12.0107, 14.0067, 15.9994, 39.948};

float zAir[4] = {6., 7., 8., 18.};

float wAir[4] = {0.000124, 0.755267, 0.231781, 0.012827};

float dAir = 1.20479E-3;

// G10

// G10 60% SiO2 40% epoxy

float ag10[4] = {12.01, 1., 15.994, 28.086};

float zg10[4] = {6., 1., 8., 14.};

float wg10[4] = {0.194, 0.023, 0.443, 0.340};

matmgr.Mixture("FRAME", 22, "G10", ag10, zg10, 1.7, 4, wg10);

matmgr.Mixture("FRAME", 65, "STEEL$", asteel, zsteel, 7.88, 4, wsteel);

matmgr.Mixture("FRAME", 5, "AIR$ ", aAir, zAir, dAir, 4, wAir);

matmgr.Material("FRAME", 9, "ALU ", 26.98, 13., 2.7, 8.9, 37.2);

matmgr.Medium("FRAME", 65, "Steel", 65, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);

matmgr.Medium("FRAME", 5, "Air", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);

matmgr.Medium("FRAME", 9, "Aluminum", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);

matmgr.Medium("FRAME", 22, "G10", 22, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);

mAirMedID = matmgr.getMediumID("FRAME", 5);

mSteelMedID = matmgr.getMediumID("FRAME", 65);

mAluMedID = matmgr.getMediumID("FRAME", 9);

mG10MedID = matmgr.getMediumID("FRAME", 22);

// do a cross check

assert(gGeoManager->GetMedium("FRAME_Air")->GetId() == mAirMedID);

assert(gGeoManager->GetMedium("FRAME_Aluminum")->GetId() == mAluMedID);

assert(gGeoManager->GetMedium("FRAME_Steel")->GetId() == mSteelMedID);

assert(gGeoManager->GetMedium("FRAME_G10")->GetId() == mG10MedID);

{

auto vmc = TVirtualMC::GetMC();

// TODO: we should be allowed to call this function only once

if (vmc == nullptr) {

throw std::runtime_error("VMC instance not initialized");

}

// verify that we have the world volume already setup

if (gGeoManager != nullptr && gGeoManager->GetVolume(TOPNAME)) {

mCaveIsAvailable = true;

}

// create materials

createMaterials();

int idrotm[2299];

AliMatrix(idrotm[2070], 90.0, 0.0, 90.0, 270.0, 0.0, 0.0);

//

AliMatrix(idrotm[2083], 170.0, 0.0, 90.0, 90.0, 80.0, 0.0);

AliMatrix(idrotm[2084], 170.0, 180.0, 90.0, 90.0, 80.0, 180.0);

AliMatrix(idrotm[2085], 90.0, 180.0, 90.0, 90.0, 0.0, 0.0);

//

AliMatrix(idrotm[2086], 80.0, 0.0, 90.0, 90., -10.0, 0.0);

AliMatrix(idrotm[2096], 100.0, 0.0, 90.0, 90., 10.0, 0.0);

//

AliMatrix(idrotm[2087], -100.0, 0.0, 90.0, 270., -10.0, 0.0);

AliMatrix(idrotm[2097], -80.0, 0.0, 90.0, 270., 10.0, 0.0);

//

AliMatrix(idrotm[2088], 90.0, 180.0, 90.0, 270., 0.0, 0.0);

AliMatrix(idrotm[2089], 90.0, -90.0, 90.0, 0., 0.0, 0.0);

//

AliMatrix(idrotm[2090], 90.0, 0.0, 0.0, 0., 90.0, 90.0);

AliMatrix(idrotm[2091], 0.0, 0.0, 90.0, 90., 90.0, 0.0);

//

// Matrices have been imported from Euclid. Some simplification

// seems possible

//

AliMatrix(idrotm[2003], 0.0, 0.0, 90.0, 130.0, 90.0, 40.0);

AliMatrix(idrotm[2004], 180.0, 0.0, 90.0, 130.0, 90.0, 40.0);

AliMatrix(idrotm[2005], 180.0, 0.0, 90.0, 150.0, 90.0, 240.0);

AliMatrix(idrotm[2006], 0.0, 0.0, 90.0, 150.0, 90.0, 240.0);

AliMatrix(idrotm[2007], 0.0, 0.0, 90.0, 170.0, 90.0, 80.0);

AliMatrix(idrotm[2008], 180.0, 0.0, 90.0, 190.0, 90.0, 280.0);

AliMatrix(idrotm[2009], 180.0, 0.0, 90.0, 170.0, 90.0, 80.0);

AliMatrix(idrotm[2010], 0.0, 0.0, 90.0, 190.0, 90.0, 280.0);

AliMatrix(idrotm[2011], 0.0, 0.0, 90.0, 350.0, 90.0, 260.0);

AliMatrix(idrotm[2012], 180.0, 0.0, 90.0, 350.0, 90.0, 260.0);

AliMatrix(idrotm[2013], 180.0, 0.0, 90.0, 10.0, 90.0, 100.0);

AliMatrix(idrotm[2014], 0.0, 0.0, 90.0, 10.0, 90.0, 100.0);

AliMatrix(idrotm[2015], 0.0, 0.0, 90.0, 30.0, 90.0, 300.0);

AliMatrix(idrotm[2016], 180.0, 0.0, 90.0, 30.0, 90.0, 300.0);

AliMatrix(idrotm[2017], 180.0, 0.0, 90.0, 50.0, 90.0, 140.0);

AliMatrix(idrotm[2018], 0.0, 0.0, 90.0, 50.0, 90.0, 140.0);

AliMatrix(idrotm[2019], 180.0, 0.0, 90.0, 130.0, 90.0, 220.0);

AliMatrix(idrotm[2020], 180.0, 0.0, 90.0, 50.0, 90.0, 320.0);

AliMatrix(idrotm[2021], 180.0, 0.0, 90.0, 150.0, 90.0, 60.0);

AliMatrix(idrotm[2022], 180.0, 0.0, 90.0, 30.0, 90.0, 120.0);

AliMatrix(idrotm[2023], 180.0, 0.0, 90.0, 170.0, 90.0, 260.0);

AliMatrix(idrotm[2024], 180.0, 0.0, 90.0, 190.0, 90.0, 100.0);

AliMatrix(idrotm[2025], 180.0, 0.0, 90.0, 350.0, 90.0, 80.0);

AliMatrix(idrotm[2026], 180.0, 0.0, 90.0, 10.0, 90.0, 280.0);

AliMatrix(idrotm[2100], 180.0, 0.0, 90.0, 210.0, 90.0, 120.0);

AliMatrix(idrotm[2101], 180.0, 0.0, 90.0, 330.0, 90.0, 60.0);

AliMatrix(idrotm[2027], 0.0, 0.0, 90.0, 50.0, 90.0, 320.0);

AliMatrix(idrotm[2028], 0.0, 0.0, 90.0, 150.0, 90.0, 60.0);

AliMatrix(idrotm[2029], 0.0, 0.0, 90.0, 30.0, 90.0, 120.0);

AliMatrix(idrotm[2030], 0.0, 0.0, 90.0, 10.0, 90.0, 280.0);

AliMatrix(idrotm[2031], 0.0, 0.0, 90.0, 170.0, 90.0, 260.0);

AliMatrix(idrotm[2032], 0.0, 0.0, 90.0, 190.0, 90.0, 100.0);

AliMatrix(idrotm[2033], 0.0, 0.0, 90.0, 350.0, 90.0, 80.0);

//

// The Main Space Frame

// ALIP2A__0007

// ALIP2A__0008

//

float pbox[3], ptrap[11], ptrd1[4], ppgon[10];

float dx, dy, dz;

int i, j;

int jmod = 0;

//

// Constants

//

// Materials

const TGeoMedium* kMedAir = gGeoManager->GetMedium("FRAME_Air");

const TGeoMedium* kMedSteel = gGeoManager->GetMedium("FRAME_Steel");

const TGeoMedium* kMedAlu = gGeoManager->GetMedium("FRAME_Aluminum");

const int kAir = mAirMedID;

const int kSteel = mSteelMedID;

const int kAlu = mAluMedID;

const int kG10 = mG10MedID;

// Angles

const float kEps = 0.01;

const float krad2deg = 180. / TMath::Pi();

const float kdeg2rad = 1. / krad2deg;

const float sin10 = TMath::Sin(10. * kdeg2rad);

const float tan10 = TMath::Tan(10. * kdeg2rad);

const float cos10 = TMath::Cos(10. * kdeg2rad);

// Dimensions

// vertical distance of frame wrt to origin (center of inner rings)

const float hR = 286.00;

// Height of inner frame from lower edge to outer ring (sectors for detectors)

const float iFrH = 119.00;

//

// radial length of web frame elements

const float dHz = 113. / cos10 - 0.3; // 114.74 (114.5 on drawing)

// Positions of ring bars (ALIP2A_0008)

// outer

const float dymodU[3] = {71.5, 228.5, 339.5};

// inner

const float dymodL[3] = {50.0, 175.0, 297.5};

//

// orientation of web frame elements

const float dymodO[5] = {10., -40., 20., -27.1, 18.4};

// Position of web frame elements

float dymodW[5] = {70., 73.6, 224.5, 231.4, 340.2};

for (int ii = 0; ii < 5; ii++) {

dymodW[ii] = dymodW[ii] - 3. * TMath::Tan(dymodO[ii] * kdeg2rad);

}

// Inner ring bars (Pos 6)

const float ringH = 6.00; // Hight

const float ringW = 10.00; // Width of the ring bars in z

const float ringT = 1.00; // Thickness of bars

// inner longitudinal bars 4 x 6

const float longH = 6.00; // Height

const float longW = 4.00; // Width

// outer longitudianl bars 8 x 8

// const float longOD = 8.0;

// some extra space for mother volume

const float dext = sin10 * longW / 2. + 0.01;

// sector hight with extra space

const float iFrH0 = iFrH + dext;

// length of inner longitudinal bars

// inner

const float longLI = 615.;

const float zE = 376.5;

//

// Frame mother volume

//

TGeoPgon* shB77A = new TGeoPgon(0., 360., 18, 2);

shB77A->SetName("shB77A");

shB77A->DefineSection(0, -zE, 280., 422.15);

shB77A->DefineSection(1, zE, 280., 422.15);

TGeoBBox* shB77B = new TGeoBBox(3.42, 2., 375.5);

shB77B->SetName("shB77B");

TGeoTranslation* trB77A = new TGeoTranslation("trB77A", +283.32, 0., 0.);

TGeoTranslation* trB77B = new TGeoTranslation("trB77B", -283.32, 0., 0.);

trB77A->RegisterYourself();

trB77B->RegisterYourself();

TGeoPgon* shB77C = new TGeoPgon(60., 360., 18, 2);

shB77C->SetName("shB77C");

shB77C->DefineSection(0, -zE, 422.15, 423.70);

shB77C->DefineSection(1, zE, 422.15, 423.70);

TGeoCompositeShape* shB77 = new TGeoCompositeShape("shB77", "shB77A+shB77B:trB77A+shB77B:trB77B+shB77C");

TGeoVolume* voB77 = new TGeoVolume("B077", shB77, gGeoManager->GetMedium("FRAME_Air"));

voB77->SetName("B077"); // just to avoid a warning

vmc->Gspos("B077", 1, TOPNAME, 0., 30., 0., 0, "ONLY");

//

// Reference plane #1 for TRD

TGeoPgon* shBREFA = new TGeoPgon(0.0, 360., 18, 2);

shBREFA->DefineSection(0, -376., 280., 280.1);

shBREFA->DefineSection(1, 376., 280., 280.1);

shBREFA->SetName("shBREFA");

TGeoCompositeShape* shBREF1 = new TGeoCompositeShape("shBREF1", "shBREFA-(shB77B:trB77A+shB77B:trB77B)");

TGeoVolume* voBREF = new TGeoVolume("BREF1", shBREF1, gGeoManager->GetMedium("FRAME_Air"));

voBREF->SetVisibility(0);

vmc->Gspos("BREF1", 1, "B077", 0., 0., 0., 0, "ONLY");

//

// The outer Frame

//

float dol = 4.;

float doh = 4.;

float ds = 0.63;

//

// Rings

//

dz = 2. * 410.2 * sin10 - 2. * dol * cos10 - 2. * doh * tan10;

float l1 = dz / 2.;

float l2 = dz / 2. + 2. * doh * tan10;

TGeoVolumeAssembly* asBI42 = new TGeoVolumeAssembly("BI42");

// Horizontal

ptrd1[0] = l2 - 0.6 * tan10;

ptrd1[1] = l2;

ptrd1[2] = 8.0 / 2.;

ptrd1[3] = 0.6 / 2.;

vmc->Gsvolu("BIH142", "TRD1", kSteel, ptrd1, 4);

ptrd1[0] = l1;

ptrd1[1] = l1 + 0.6 * tan10;

ptrd1[2] = 8.0 / 2.;

ptrd1[3] = 0.6 / 2.;

vmc->Gsvolu("BIH242", "TRD1", kSteel, ptrd1, 4);

// Vertical

ptrd1[0] = l1 + 0.6 * tan10;

ptrd1[1] = l2 - 0.6 * tan10;

ptrd1[2] = 0.8 / 2.;

ptrd1[3] = 6.8 / 2.;

vmc->Gsvolu("BIV42", "TRD1", kSteel, ptrd1, 4);

// Place

asBI42->AddNode(gGeoManager->GetVolume("BIV42"), 1, new TGeoTranslation(0., 0., 0.0));

asBI42->AddNode(gGeoManager->GetVolume("BIH142"), 1, new TGeoTranslation(0., 0., 3.7));

asBI42->AddNode(gGeoManager->GetVolume("BIH242"), 1, new TGeoTranslation(0., 0., -3.7));

//

// longitudinal bars

//

// 80 x 80 x 6.3

//

pbox[0] = dol;

pbox[1] = doh;

pbox[2] = 345.;

vmc->Gsvolu("B033", "BOX", kSteel, pbox, 3);

pbox[0] = dol - ds;

pbox[1] = doh - ds;

vmc->Gsvolu("B034", "BOX", kAir, pbox, 3);

vmc->Gspos("B034", 1, "B033", 0., 0., 0., 0, "ONLY");

//

// TPC support

//

pbox[0] = 3.37;

pbox[1] = 2.0;

pbox[2] = longLI / 2.;

vmc->Gsvolu("B080", "BOX", kSteel, pbox, 3);

pbox[0] = 2.78;

pbox[1] = 1.40;

pbox[2] = longLI / 2.;

vmc->Gsvolu("B081", "BOX", kAir, pbox, 3);

vmc->Gspos("B081", 1, "B080", 0., 0., 0., 0, "ONLY");

// Small 2nd reference plane elemenet

pbox[0] = 0.05;

pbox[1] = 2.0;

pbox[2] = longLI / 2.;

vmc->Gsvolu("BREF2", "BOX", kAir, pbox, 3);

vmc->Gspos("BREF2", 1, "B080", 3.37 - 0.05, 0., 0., 0, "ONLY");

vmc->Gspos("B080", 1, "B077", 283.25, 0., 0., 0, "ONLY");

vmc->Gspos("B080", 2, "B077", -283.25, 0., 0., idrotm[2088], "ONLY");

//

// Diagonal bars (1)

//

float h, d, dq, x, theta;

h = (dymodU[1] - dymodU[0] - 2. * dol) * .999;

d = 2. * dol;

dq = h * h + dz * dz;

x = TMath::Sqrt((dz * dz - d * d) / dq + d * d * h * h / dq / dq) + d * h / dq;

theta = krad2deg * TMath::ACos(x);

ptrap[0] = dz / 2.;

ptrap[1] = theta;

ptrap[2] = 0.;

ptrap[3] = doh;

ptrap[4] = dol / x;

ptrap[5] = ptrap[4];

ptrap[6] = 0;

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

ptrap[10] = 0;

vmc->Gsvolu("B047", "TRAP", kSteel, ptrap, 11);

ptrap[3] = doh - ds;

ptrap[4] = (dol - ds) / x;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu("B048", "TRAP", kAir, ptrap, 11);

vmc->Gspos("B048", 1, "B047", 0.0, 0.0, 0., 0, "ONLY");

/*

h = (2. * dymodU[0] - 2. * dol) * .999;

//

// Mother volume

//

pbox[0] = h / 2;

pbox[1] = doh;

pbox[2] = dz / 2.;

vmc->Gsvolu("BM49", "BOX ", kAir, pbox, 3);

dq = h * h + dz * dz;

x = TMath::Sqrt((dz * dz - d * d) / dq + d * d * h * h / dq / dq) + d * h / dq;

theta = krad2deg * TMath::ACos(x);

ptrap[0] = dz / 2. - kEps;

ptrap[1] = theta;

ptrap[2] = 0.;

ptrap[3] = doh - kEps;

ptrap[4] = dol / x;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu("B049", "TRAP", kSteel, ptrap, 11);

ptrap[0] = ptrap[0] - kEps;

ptrap[3] = (doh - ds);

ptrap[4] = (dol - ds) / x;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu("B050", "TRAP", kAir, ptrap, 11);

vmc->Gspos("B050", 1, "B049", 0.0, 0.0, 0., 0, "ONLY");

vmc->Gspos("B049", 1, "BM49", 0.0, 0.0, 0., 0, "ONLY");

float dd1 = d * TMath::Tan(theta * kdeg2rad);

float dd2 = d / TMath::Tan(2. * theta * kdeg2rad);

float theta2 = TMath::ATan(TMath::Abs(dd2 - dd1) / d / 2.);

ptrap[0] = dol;

ptrap[1] = theta2 * krad2deg;

ptrap[2] = 0.;

ptrap[3] = doh;

ptrap[4] = (dz / 2. / x - dd1 - dd2) / 2.;

ptrap[5] = ptrap[4];

ptrap[6] = 0.;

ptrap[7] = ptrap[3];

ptrap[8] = dz / 4. / x;

ptrap[9] = ptrap[8];

vmc->Gsvolu("B051", "TRAP", kSteel, ptrap, 11);

float ddx0 = ptrap[8];

float dd1s = dd1 * (1. - 2. * ds / d);

float dd2s = dd2 * (1. - 2. * ds / d);

float theta2s = TMath::ATan(TMath::Abs(dd2s - dd1s) / (d - 2. * ds) / 2.);

ptrap[0] = dol - ds;

ptrap[1] = theta2s * krad2deg;

ptrap[2] = 0.;

ptrap[3] = doh - ds;

ptrap[4] = ptrap[4] + ds / d / 2. * (dd1 + dd2);

ptrap[5] = ptrap[4];

ptrap[6] = 0.;

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[8] - ds / 2. / d * (dd1 + dd2);

ptrap[9] = ptrap[8];

vmc->Gsvolu("B052", "TRAP", kAir, ptrap, 11);

vmc->Gspos("B052", 1, "B051", 0.0, 0.0, 0., 0, "ONLY");

float ddx, ddz, drx, drz, rtheta;

AliMatrix(idrotm[2001], -theta + 180, 0.0, 90.0, 90.0, 90. - theta, 0.0);

rtheta = (90. - theta) * kdeg2rad;

ddx = -ddx0 - dol * TMath::Tan(theta2);

ddz = -dol;

drx = TMath::Cos(rtheta) * ddx + TMath::Sin(rtheta) * ddz + pbox[0];

drz = -TMath::Sin(rtheta) * ddx + TMath::Cos(rtheta) * ddz - pbox[2];

vmc->Gspos("B051", 1, "BM49", drx, 0.0, drz, idrotm[2001], "ONLY");

AliMatrix(idrotm[2002], -theta, 0.0, 90.0, 90.0, 270. - theta, 0.0);

rtheta = (270. - theta) * kdeg2rad;

drx = TMath::Cos(rtheta) * ddx + TMath::Sin(rtheta) * ddz - pbox[0];

drz = -TMath::Sin(rtheta) * ddx + TMath::Cos(rtheta) * ddz + pbox[2];

vmc->Gspos("B051", 2, "BM49", drx, 0.0, drz, idrotm[2002], "ONLY");

//

// Diagonal bars (3)

//

h = ((dymodU[2] - dymodU[1]) - 2. * dol) * .999;

dq = h * h + dz * dz;

x = TMath::Sqrt((dz * dz - d * d) / dq + d * d * h * h / dq / dq) + d * h / dq;

theta = krad2deg * TMath::ACos(x);

ptrap[0] = dz / 2.;

ptrap[1] = theta;

ptrap[3] = doh;

ptrap[4] = dol / x;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu("B045", "TRAP", kSteel, ptrap, 11);

TGeoTrap* b045shape = new TGeoTrap("B045shape", ptrap[0], ptrap[1], ptrap[2], ptrap[3], ptrap[4], ptrap[5], ptrap[6], ptrap[7], ptrap[8], ptrap[9], ptrap[10]);

double cutAngle = 43 * TMath::DegToRad();

double trd1par[4] = {0., 15 + 0.1, 15, 15 * TMath::Tan(cutAngle) * 0.5 + 0.45};

TGeoTranslation* trnsB045cut = new TGeoTranslation("trnsB045cut", ptrap[0] * TMath::Tan(ptrap[1] * TMath::DegToRad()) - trd1par[2] + ptrap[4], -ptrap[3] + 0.5, ptrap[0] + 0.6);

TGeoRotation* rotB045cut = new TGeoRotation("rotB045cut");

rotB045cut->RotateZ(90);

TGeoCombiTrans* moveB045cut = new TGeoCombiTrans(*trnsB045cut, *rotB045cut);

moveB045cut->SetName("moveB045cut");

moveB045cut->RegisterYourself();

ptrap[3] = doh - ds;

ptrap[4] = (dol - ds) / x;

ptrap[5] = ptrap[4];

ptrap[7] = ptrap[3];

ptrap[8] = ptrap[4];

ptrap[9] = ptrap[4];

vmc->Gsvolu("B046", "TRAP", kAir, ptrap, 11);

vmc->Gspos("B046", 1, "B045", 0.0, 0.0, 0., 0, "ONLY");

TGeoTrd1* cutOnB045 = new TGeoTrd1("cutOnB045", trd1par[0], trd1par[1], trd1par[2], trd1par[3]);

TGeoCompositeShape* b045shapeCut = new TGeoCompositeShape("B045shapeCut", "(B045shape)-(cutOnB045:moveB045cut)");

TGeoVolume* B045cutVol = new TGeoVolume("B045cut", b045shapeCut, kMedSteel);

//

// Positioning of diagonal bars

float rd = 405.5 + 0.51;

dz = (dymodU[1] + dymodU[0]) / 2.;

float dz2 = (dymodU[1] + dymodU[2]) / 2.;

//

// phi = 60

//

float phi = 60;

dx = rd * TMath::Sin(phi * kdeg2rad);

dy = rd * TMath::Cos(phi * kdeg2rad);

vmc->Gspos("B045", 1, "B077", -dx, dy, dz2, idrotm[2021], "ONLY");

vmc->Gspos("B045", 2, "B077", -dx, dy, -dz2, idrotm[2028], "ONLY");

vmc->Gspos("B045", 3, "B077", dx, dy, dz2, idrotm[2022], "ONLY");

vmc->Gspos("B045", 4, "B077", dx, dy, -dz2, idrotm[2029], "ONLY");

vmc->Gspos("B045", 5, "B077", dx, -dy, -dz2, idrotm[2021], "ONLY");

vmc->Gspos("B045cut", 6, "B077", dx, -dy, +dz2, idrotm[2028], "ONLY");

vmc->Gspos("B045", 7, "B077", -dx, -dy, -dz2, idrotm[2022], "ONLY");

vmc->Gspos("B045", 8, "B077", -dx, -dy, +dz2, idrotm[2029], "ONLY");

vmc->Gspos("B047", 1, "B077", -dx, -dy, dz, idrotm[2022], "ONLY");

vmc->Gspos("B047", 2, "B077", -dx, -dy, -dz, idrotm[2029], "ONLY");

vmc->Gspos("B047", 3, "B077", dx, -dy, dz, idrotm[2021], "ONLY");

vmc->Gspos("B047", 4, "B077", dx, -dy, -dz, idrotm[2028], "ONLY");

vmc->Gspos("BM49", 1, "B077", dx, -dy, 0., idrotm[2101], "ONLY");

vmc->Gspos("BM49", 2, "B077", -dx, -dy, 0., idrotm[2100], "ONLY");

//

// phi = 80

//

phi = 80;

dx = rd * TMath::Sin(phi * kdeg2rad);

dy = rd * TMath::Cos(phi * kdeg2rad);

vmc->Gspos("B047", 13, "B077", -dx, -dy, dz, idrotm[2008], "ONLY");

vmc->Gspos("B047", 14, "B077", -dx, -dy, -dz, idrotm[2010], "ONLY");

vmc->Gspos("B047", 15, "B077", dx, -dy, dz, idrotm[2012], "ONLY");

vmc->Gspos("B047", 16, "B077", dx, -dy, -dz, idrotm[2011], "ONLY");

vmc->Gspos("B045", 11, "B077", -dx, dy, dz2, idrotm[2023], "ONLY");

vmc->Gspos("B045", 12, "B077", -dx, dy, -dz2, idrotm[2031], "ONLY");

vmc->Gspos("B045", 13, "B077", dx, dy, dz2, idrotm[2026], "ONLY");

vmc->Gspos("B045", 14, "B077", dx, dy, -dz2, idrotm[2030], "ONLY");

vmc->Gspos("B045", 15, "B077", -dx, -dy, dz2, idrotm[2024], "ONLY");

vmc->Gspos("B045", 16, "B077", -dx, -dy, -dz2, idrotm[2032], "ONLY");

vmc->Gspos("B045", 17, "B077", dx, -dy, dz2, idrotm[2025], "ONLY");

vmc->Gspos("B045", 18, "B077", dx, -dy, -dz2, idrotm[2033], "ONLY");

vmc->Gspos("BM49", 3, "B077", dx, -dy, 0., idrotm[2025], "ONLY");

vmc->Gspos("BM49", 4, "B077", -dx, -dy, 0., idrotm[2024], "ONLY");

//

// The inner frame

//

//

// Mother Volumes

//

ptrd1[0] = (hR - longH / 2. - dext) * tan10;

ptrd1[1] = (hR - longH / 2. + iFrH0) * tan10;

ptrd1[2] = zE;

ptrd1[3] = iFrH0 / 2.;

float dd = longW / 2. * cos10 + 0.1;

TGeoTrd1* shTRD1 = new TGeoTrd1("shTRD1", ptrd1[0], ptrd1[1], ptrd1[2], ptrd1[3]);

TGeoBBox* shBox = new TGeoBBox("shBox", 50., zE + 10., 1.);

TGeoRotation* rot1 = new TGeoRotation("urot1", 100., 0., 90., 90., 10., 0.);

TGeoRotation* rot2 = new TGeoRotation("urot2", 80., 0., 90., 90., -10., 0.);

float trotDz = iFrH0 / 2. + 1.;

float trotDx = 402. * tan10;

TGeoCombiTrans* trot1 = new TGeoCombiTrans(-trotDx, 0., trotDz, rot2);

TGeoCombiTrans* trot2 = new TGeoCombiTrans(+trotDx, 0., trotDz, rot1);

TGeoUnion* uni = new TGeoUnion(shBox, shBox, trot1, trot2);

TGeoCompositeShape* shU = new TGeoCompositeShape("shU", uni);

TGeoSubtraction* sub = new TGeoSubtraction(shTRD1, shU, nullptr, nullptr);

TGeoCompositeShape* shCS = new TGeoCompositeShape("shCS", sub);

// center of segments

float r = (hR - longH / 2. + iFrH0 / 2.) - dext;

// center of outer frame

// vertical

float rout1 = 406.0;

// radial

float rout2 = 412.3 - 2. * sin10 + 0.25;

//

TString module[18];

for (i = 0; i < 18; i++) {

// Create volume i

char name[16];

// official module numbering

int mod = i + 13;

if (mod > 17) {

mod -= 18;

}

snprintf(name, 16, "BSEGMO%d", mod);

//

TGeoVolume* voTRD1 = new TGeoVolume(name, shCS, kMedAir);

module[i] = name;

// Place volume i

float phi1 = i * 20.;

float phi2 = 270. + phi1;

if (phi2 >= 360.) {

phi2 -= 360.;

}

dx = TMath::Sin(phi1 * kdeg2rad) * r;

dy = -TMath::Cos(phi1 * kdeg2rad) * r;

char nameR[16];

snprintf(nameR, 16, "B43_Rot_%d", i);

TGeoRotation* rot = new TGeoRotation(nameR, 90.0, phi1, 0., 0., 90., phi2);

AliMatrix(idrotm[2034 + i], 90.0, phi1, 0., 0., 90., phi2);

TGeoVolume* vol77 = gGeoManager->GetVolume("B077");

vol77->AddNode(voTRD1, 1, new TGeoCombiTrans(dx, dy, 0., rot));

//

// Position elements of outer Frame

//

dx = TMath::Sin(phi1 * kdeg2rad) * rout1;

dy = -TMath::Cos(phi1 * kdeg2rad) * rout1;

for (j = 0; j < 3; j++) {

dz = dymodU[j];

TGeoVolume* vol = gGeoManager->GetVolume("B077");

vol->AddNode(asBI42, 6 * i + 2 * j + 1, new TGeoCombiTrans(dx, dy, dz, rot));

vol->AddNode(asBI42, 6 * i + 2 * j + 2, new TGeoCombiTrans(dx, dy, -dz, rot));

}

phi1 = i * 20. + 10;

phi2 = 270 + phi1;

AliMatrix(idrotm[2052 + i], 90.0, phi1, 90., phi2, 0., 0.);

dx = TMath::Sin(phi1 * kdeg2rad) * rout2;

dy = -TMath::Cos(phi1 * kdeg2rad) * rout2;

vmc->Gspos("B033", i + 1, "B077", dx, dy, 0., idrotm[2052 + i], "ONLY");

//

}

// Internal Frame rings

//

//

// Pos 7 60x60x5x6 for inner rings (I-beam)

// Pos 6 100x60x5 for front and rear rings

//

// Front and rear

//

ptrd1[0] = (hR - longH / 2.) * tan10 - dd;

ptrd1[1] = (hR + longH / 2.) * tan10 - dd;

ptrd1[2] = ringW / 2.;

ptrd1[3] = ringH / 2.;

vmc->Gsvolu("B072", "TRD1", kSteel, ptrd1, 4);

ptrd1[0] = (hR - longH / 2. + 0.5) * tan10 - dd;

ptrd1[1] = (hR + longH / 2. - 0.5) * tan10 - dd;

ptrd1[2] = ringW / 2. - 0.5;

ptrd1[3] = ringH / 2. - 0.5;

vmc->Gsvolu("B073", "TRD1", kAir, ptrd1, 4);

vmc->Gspos("B073", 1, "B072", 0., 0., 0., 0, "ONLY");

//

// I-Beam

// Mother volume

TGeoVolumeAssembly* asBI72 = new TGeoVolumeAssembly("BI72");

// Horizontal

float rIB1 = hR + ringH / 2.;

float rIB2 = hR - ringH / 2.;

ptrd1[0] = (rIB1 - ringT / 2.) * tan10 - dd;

ptrd1[1] = (rIB1)*tan10 - dd;

ptrd1[2] = ringH / 2.;

ptrd1[3] = ringT / 4.;

vmc->Gsvolu("BIH172", "TRD1", kSteel, ptrd1, 4);

ptrd1[0] = (rIB2)*tan10 - dd;

ptrd1[1] = (rIB2 + ringT / 2.) * tan10 - dd;

ptrd1[2] = ringH / 2.;

ptrd1[3] = ringT / 4.;

vmc->Gsvolu("BIH272", "TRD1", kSteel, ptrd1, 4);

// Vertical

ptrd1[0] = (rIB2 + ringT / 2.) * tan10 - dd;

ptrd1[1] = (rIB1 - ringT / 2.) * tan10 - dd;

ptrd1[2] = 0.6 / 2.;

ptrd1[3] = (ringH - ringT) / 2.;

vmc->Gsvolu("BIV72", "TRD1", kSteel, ptrd1, 4);

// Place

asBI72->AddNode(gGeoManager->GetVolume("BIV72"), 1, new TGeoTranslation(0., 0., 0.));

asBI72->AddNode(gGeoManager->GetVolume("BIH172"), 1, new TGeoTranslation(0., 0., (ringH / 2. - ringT / 4.)));

asBI72->AddNode(gGeoManager->GetVolume("BIH272"), 1, new TGeoTranslation(0., 0., -(ringH / 2. - ringT / 4.)));

// Web frame

//

// h x w x s = 60 x 40 x 5

// (attention: elements are half bars, "U" shaped)

//

createWebFrame("B063", dHz, dymodO[0], 10.);

createWebFrame("B163", dHz, dymodO[1], 10.);

createWebFrame("B263", dHz, dymodO[2], 10.);

createWebFrame("B363", dHz, dymodO[3], 10.);

createWebFrame("B463", dHz, dymodO[4], 10.);

dz = -iFrH0 / 2. + ringH / 2. + dext;

float dz0 = -iFrH0 / 2. + longH + 113. / 2. + dext - 0.1;

float dx0 = (hR + iFrH / 2.) * tan10 - longW / 4. * cos10 - 0.065;

for (jmod = 0; jmod < 18; jmod++) {

//

// ring bars

for (i = 0; i < 3; i++) {

if (i == 2) {

vmc->Gspos("B072", 6 * jmod + i + 1, module[jmod], 0, dymodL[i], dz, 0, "ONLY");

vmc->Gspos("B072", 6 * jmod + i + 4, module[jmod], 0, -dymodL[i], dz, idrotm[2070], "ONLY");

} else {

TGeoVolume* vol = gGeoManager->GetVolume(module[jmod]);

vol->AddNode(asBI72, 6 * jmod + i + 1, new TGeoTranslation(0, dymodL[i], dz));

vol->AddNode(asBI72, 6 * jmod + i + 4, new TGeoTranslation(0, -dymodL[i], dz));

}

}

}

//

// outer diagonal web

dy = dymodW[0] - (dHz / 2.) * TMath::Tan(dymodO[0] * kdeg2rad);

for (jmod = 0; jmod < 18; jmod++) {

vmc->Gspos("B063I", 4 * jmod + 1, module[jmod], dx0, dy, dz0, idrotm[2096], "ONLY");

vmc->Gspos("B063", 4 * jmod + 2, module[jmod], dx0, -dy, dz0, idrotm[2097], "ONLY");

vmc->Gspos("B063I", 4 * jmod + 3, module[jmod], -dx0, -dy, dz0, idrotm[2087], "ONLY");

vmc->Gspos("B063", 4 * jmod + 4, module[jmod], -dx0, dy, dz0, idrotm[2086], "ONLY");

}

dy = dymodW[1] - (dHz / 2.) * TMath::Tan(dymodO[1] * kdeg2rad);

for (jmod = 0; jmod < 18; jmod++) {

vmc->Gspos("B163I", 4 * jmod + 1, module[jmod], dx0, -dy, dz0, idrotm[2096], "ONLY");

vmc->Gspos("B163", 4 * jmod + 2, module[jmod], dx0, dy, dz0, idrotm[2097], "ONLY");

vmc->Gspos("B163I", 4 * jmod + 3, module[jmod], -dx0, dy, dz0, idrotm[2087], "ONLY");

vmc->Gspos("B163", 4 * jmod + 4, module[jmod], -dx0, -dy, dz0, idrotm[2086], "ONLY");

}

dy = dymodW[2] - (dHz / 2) * TMath::Tan(dymodO[2] * kdeg2rad);

for (jmod = 0; jmod < 18; jmod++) {

vmc->Gspos("B263I", 4 * jmod + 1, module[jmod], dx0, dy, dz0, idrotm[2096], "ONLY");

vmc->Gspos("B263", 4 * jmod + 2, module[jmod], dx0, -dy, dz0, idrotm[2097], "ONLY");

vmc->Gspos("B263I", 4 * jmod + 3, module[jmod], -dx0, -dy, dz0, idrotm[2087], "ONLY");

vmc->Gspos("B263", 4 * jmod + 4, module[jmod], -dx0, dy, dz0, idrotm[2086], "ONLY");

}

dy = dymodW[3] - (dHz / 2.) * TMath::Tan(dymodO[3] * kdeg2rad);

for (jmod = 0; jmod < 18; jmod++) {

vmc->Gspos("B363I", 4 * jmod + 1, module[jmod], dx0, -dy, dz0, idrotm[2096], "ONLY");

vmc->Gspos("B363", 4 * jmod + 2, module[jmod], dx0, dy, dz0, idrotm[2097], "ONLY");

vmc->Gspos("B363I", 4 * jmod + 3, module[jmod], -dx0, dy, dz0, idrotm[2087], "ONLY");

vmc->Gspos("B363", 4 * jmod + 4, module[jmod], -dx0, -dy, dz0, idrotm[2086], "ONLY");

}

dy = dymodW[4] - (dHz / 2.) * TMath::Tan(dymodO[4] * kdeg2rad);

for (jmod = 0; jmod < 18; jmod++) {

vmc->Gspos("B463I", 4 * jmod + 1, module[jmod], dx0, dy, dz0, idrotm[2096], "ONLY");

vmc->Gspos("B463", 4 * jmod + 2, module[jmod], dx0, -dy, dz0, idrotm[2097], "ONLY");

vmc->Gspos("B463I", 4 * jmod + 3, module[jmod], -dx0, -dy, dz0, idrotm[2087], "ONLY");

vmc->Gspos("B463", 4 * jmod + 4, module[jmod], -dx0, dy, dz0, idrotm[2086], "ONLY");

}

// longitudinal bars (TPC rails attached)

// new specs:

// h x w x s = 100 x 75 x 6

// Attention: 2 "U" shaped half rods per cell

// longitudinal bars (no TPC rails attached)

// new specs: h x w x s = 40 x 60 x 5

//

//

//

double lbox[3];

lbox[0] = longW / 4.;

lbox[2] = longH / 2.;

lbox[1] = longLI / 2.;

vmc->Gsvolu("BA59", "BOX", kSteel, lbox, 3);

gGeoManager->GetVolume("BA59")->SetVisContainers();

lbox[0] = longW / 4. - 0.25;

lbox[2] = longH / 2. - 0.50;

vmc->Gsvolu("BA62", "BOX", kAir, lbox, 3);

vmc->Gspos("BA62", 1, "BA59", 0.25, 0.0, 0.0, 0, "ONLY");

dz = -iFrH0 / 2. + longH / 2. - 1. * sin10 + dext;