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//==========================================================================
// AIDA Detector description implementation
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author : M.Frank
//
//==========================================================================
//
// Specialized generic detector constructor
//
//==========================================================================
#include <map>
#include "DD4hep/DetFactoryHelper.h"
#include "Acts/Plugins/DD4hep/ActsExtension.hpp"
#include "Acts/Definitions/Units.hpp"
using namespace std;
using namespace dd4hep;
using namespace dd4hep::detail;
static Ref_t create_detector(Detector& description, xml_h e, SensitiveDetector sens)
{
typedef vector<PlacedVolume> Placements;
xml_det_t x_det = e;
Material vacuum = description.vacuum();
int det_id = x_det.id();
string det_name = x_det.nameStr();
bool reflect = x_det.reflect(false);
DetElement sdet(det_name, det_id);
Assembly assembly(det_name);
Material air = description.material("Air");
// Volume assembly (det_name,Box(10000,10000,10000),vacuum);
Volume motherVol = description.pickMotherVolume(sdet);
int m_id = 0, c_id = 0, n_sensor = 0;
map<string, Volume> modules;
map<string, Placements> sensitives;
PlacedVolume pv;
Acts::ActsExtension* detWorldExt = new Acts::ActsExtension();
detWorldExt->addType("endcap", "detector");
sdet.addExtension<Acts::ActsExtension>(detWorldExt);
assembly.setVisAttributes(description.invisible());
sens.setType("tracker");
for (xml_coll_t mi(x_det, _U(module)); mi; ++mi, ++m_id) {
xml_comp_t x_mod = mi;
string m_nam = x_mod.nameStr();
xml_comp_t trd = x_mod.trd();
double posY;
double x1 = trd.x1();
double x2 = trd.x2();
double z = trd.z();
double y1, y2, total_thickness = 0.;
xml_coll_t ci(x_mod, _U(module_component));
for (ci.reset(), total_thickness = 0.0; ci; ++ci)
total_thickness += xml_comp_t(ci).thickness();
y1 = y2 = total_thickness / 2;
Trapezoid m_solid(x1, x2, y1, y2, z);
Volume m_volume(m_nam, m_solid, vacuum);
m_volume.setVisAttributes(description.visAttributes(x_mod.visStr()));
Solid frame_s;
if(x_mod.hasChild("frame")){
// build frame from trd (assumed to be smaller)
xml_comp_t m_frame = x_mod.child(_U(frame));
xml_comp_t f_pos = m_frame.child(_U(position));
xml_comp_t frame_trd = m_frame.trd();
double frame_thickness = getAttrOrDefault(m_frame, _U(thickness), total_thickness);
double frame_x1 = frame_trd.x1();
double frame_x2 = frame_trd.x2();
double frame_z = frame_trd.z();
// make the frame match the total thickness if thickness attribute is not given
Trapezoid f_solid1(x1, x2,frame_thickness / 2.0, frame_thickness / 2.0, z);
Trapezoid f_solid(frame_x1, frame_x2, frame_thickness / 2.0, frame_thickness / 2.0, frame_z) ;
SubtractionSolid frame_shape(f_solid1, f_solid);
frame_s = frame_shape;
Material f_mat = description.material(m_frame.materialStr());
Volume f_vol(m_nam + "_frame", frame_shape, f_mat);
f_vol.setVisAttributes(description.visAttributes(m_frame.visStr()));
// figure out how to best place
pv = m_volume.placeVolume(f_vol, Position(f_pos.x(), f_pos.y(), f_pos.z()));
}
for (ci.reset(), n_sensor = 1, c_id = 0, posY = -y1; ci; ++ci, ++c_id) {
xml_comp_t c = ci;
double c_thick = c.thickness();
auto comp_x1 = getAttrOrDefault(c, _Unicode(x1), x1);
auto comp_x2 = getAttrOrDefault(c, _Unicode(x2), x2);
auto comp_height = getAttrOrDefault(c, _Unicode(height), z);
Material c_mat = description.material(c.materialStr());
string c_name = _toString(c_id, "component%d");
Trapezoid comp_s1(comp_x1, comp_x2, c_thick / 2e0, c_thick / 2e0, comp_height);
Solid comp_shape = comp_s1;
if(frame_s.isValid()) {
comp_shape = SubtractionSolid( comp_s1, frame_s);
}
Volume c_vol(c_name, comp_shape, c_mat);
c_vol.setVisAttributes(description.visAttributes(c.visStr()));
pv = m_volume.placeVolume(c_vol, Position(0, posY + c_thick / 2, 0));
if (c.isSensitive()) {
sdet.check(n_sensor > 2, "SiTrackerEndcap2::fromCompact: " + c_name + " Max of 2 modules allowed!");
pv.addPhysVolID("sensor", n_sensor);
c_vol.setSensitiveDetector(sens);
sensitives[m_nam].push_back(pv);
++n_sensor;
}
posY += c_thick;
modules[m_nam] = m_volume;
}
for (xml_coll_t li(x_det, _U(layer)); li; ++li) {
xml_comp_t x_layer(li);
int l_id = x_layer.id();
int mod_num = 1;
xml_comp_t l_env = x_layer.child(_U(envelope));
string layer_name = det_name + std::string("_layer") + std::to_string(l_id);
std::string layer_vis = l_env.attr<std::string>(_Unicode(vis));
double layer_rmin = l_env.attr<double>(_Unicode(rmin));
double layer_rmax = l_env.attr<double>(_Unicode(rmax));
double layer_length = l_env.attr<double>(_Unicode(length));
double layer_zstart = l_env.attr<double>(_Unicode(zstart));
double layer_center_z = layer_zstart + layer_length/2.0;
//printout(INFO,"ROOTGDMLParse","+++ Read geometry from GDML file file:%s",input.c_str());
//std::cout << "SiTracker Endcap layer " << l_id << " zstart = " << layer_zstart/dd4hep::mm << "mm ( " << layer_length/dd4hep::mm << " mm thick )\n";
//Assembly layer_assembly(layer_name);
Tube layer_tub(layer_rmin, layer_rmax, layer_length / 2);
Volume layer_vol(layer_name, layer_tub, air); // Create the layer envelope volume.
layer_vol.setVisAttributes(description.visAttributes(layer_vis));
PlacedVolume layer_pv;
if (reflect) {
layer_pv =
assembly.placeVolume(layer_vol, Transform3D(RotationZYX(0.0, -M_PI, 0.0), Position(0, 0, -layer_center_z)));
layer_pv.addPhysVolID("barrel", 3).addPhysVolID("layer", l_id);
layer_name += "_N";
} else {
layer_pv = assembly.placeVolume(layer_vol, Position(0, 0, layer_center_z));
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layer_pv.addPhysVolID("barrel", 2).addPhysVolID("layer", l_id);
layer_name += "_P";
}
DetElement layer_element(sdet, layer_name, l_id);
layer_element.setPlacement(layer_pv);
Acts::ActsExtension* layerExtension = new Acts::ActsExtension();
layerExtension->addType("layer", "layer");
//layerExtension->addType("axes", "definitions", "XZY");
layer_element.addExtension<Acts::ActsExtension>(layerExtension);
for (xml_coll_t ri(x_layer, _U(ring)); ri; ++ri) {
xml_comp_t x_ring = ri;
double r = x_ring.r();
double phi0 = x_ring.phi0(0);
double zstart = x_ring.zstart();
double dz = x_ring.dz(0);
int nmodules = x_ring.nmodules();
string m_nam = x_ring.moduleStr();
Volume m_vol = modules[m_nam];
double iphi = 2 * M_PI / nmodules;
double phi = phi0;
Placements& sensVols = sensitives[m_nam];
for (int k = 0; k < nmodules; ++k) {
string m_base = _toString(l_id, "layer%d") + _toString(mod_num, "_module%d");
double x = -r * std::cos(phi);
double y = -r * std::sin(phi);
if (!reflect) {
DetElement module(sdet, m_base + "_pos", det_id);
pv = layer_vol.placeVolume(
m_vol, Transform3D(RotationZYX(0, -M_PI / 2 - phi, -M_PI / 2), Position(x, y, zstart + dz)));
pv.addPhysVolID("barrel", 1).addPhysVolID("layer", l_id).addPhysVolID("module", mod_num);
module.setPlacement(pv);
for (size_t ic = 0; ic < sensVols.size(); ++ic) {
PlacedVolume sens_pv = sensVols[ic];
DetElement comp_elt(module, sens_pv.volume().name(), mod_num);
comp_elt.setPlacement(sens_pv);
Acts::ActsExtension* moduleExtension = new Acts::ActsExtension();
comp_elt.addExtension<Acts::ActsExtension>(moduleExtension);
}
} else {
pv = layer_vol.placeVolume(
m_vol, Transform3D(RotationZYX(0, -M_PI / 2 - phi, -M_PI / 2), Position(x, y, -zstart - dz)));
pv.addPhysVolID("barrel", 2).addPhysVolID("layer", l_id).addPhysVolID("module", mod_num);
DetElement r_module(sdet, m_base + "_neg", det_id);
r_module.setPlacement(pv);
for (size_t ic = 0; ic < sensVols.size(); ++ic) {
PlacedVolume sens_pv = sensVols[ic];
DetElement comp_elt(r_module, sens_pv.volume().name(), mod_num);
comp_elt.setPlacement(sens_pv);
Acts::ActsExtension* moduleExtension = new Acts::ActsExtension();
comp_elt.addExtension<Acts::ActsExtension>(moduleExtension);
}
dz = -dz;
phi += iphi;
++mod_num;
}
pv = motherVol.placeVolume(assembly,Position(0,0,(reflect?-1.0e-9:1.0e-9)) );
pv.addPhysVolID("system", det_id);
sdet.setPlacement(pv);
return sdet;
}
// clang-format off
DECLARE_DETELEMENT(refdet_TrapEndcapTracker, create_detector)
DECLARE_DETELEMENT(refdet_GEMTrackerEndcap, create_detector)