File indexing completed on 2024-04-06 12:14:37
0001 #include "DataFormats/Math/interface/GeantUnits.h"
0002 #include "DetectorDescription/Core/interface/DDSplit.h"
0003 #include "DetectorDescription/DDCMS/interface/DDPlugins.h"
0004 #include "FWCore/MessageLogger/interface/MessageLogger.h"
0005 #include "DD4hep/DetFactoryHelper.h"
0006
0007
0008 using namespace geant_units::operators;
0009
0010 static long algorithm(dd4hep::Detector& , cms::DDParsingContext& ctxt, xml_h e) {
0011 cms::DDNamespace ns(ctxt, e, true);
0012 cms::DDAlgoArguments args(ctxt, e);
0013 int units = args.value<int>("number");
0014 double rr = args.value<double>("radius");
0015 double dphi = args.value<double>("deltaPhi");
0016 #ifdef EDM_ML_DEBUG
0017 edm::LogVerbatim("ForwardGeom") << "DDBHMAngular debug: Parameters for positioning-- " << units
0018 << " copies at radius " << convertMmToCm(rr) << " cm with delta(phi) "
0019 << convertRadToDeg(dphi);
0020 #endif
0021 std::string rotMat = args.value<std::string>("Rotation");
0022 std::string childName = args.value<std::string>("ChildName");
0023 dd4hep::Volume parent = ns.volume(args.parentName());
0024 dd4hep::Volume child = ns.volume(ns.prepend(childName));
0025 #ifdef EDM_ML_DEBUG
0026 edm::LogVerbatim("ForwardGeom") << "DDBHMAngular debug: Parent " << parent.name() << "\tChild " << child.name()
0027 << "\tRotation matrix " << rotMat;
0028 #endif
0029 std::string rotstr = DDSplit(rotMat).first;
0030 dd4hep::Rotation3D rot;
0031 if (rotstr != "NULL") {
0032 rot = ns.rotation(rotMat);
0033 }
0034 static const int startpos = 16;
0035 static const double fac1 = 0.5;
0036 static const double fac2 = 1.5;
0037 for (int jj = 0; jj < units; jj++) {
0038 double driverX(0), driverY(0), driverZ(0);
0039 if (jj < startpos) {
0040 driverX = rr * cos((jj + fac1) * dphi);
0041 driverY = sqrt(rr * rr - driverX * driverX);
0042 } else if (jj == startpos) {
0043 driverX = rr * cos((startpos - fac1) * dphi);
0044 driverY = -sqrt(rr * rr - driverX * driverX);
0045 } else if (jj == startpos + 1) {
0046 driverX = rr * cos((startpos - fac2) * dphi);
0047 driverY = -sqrt(rr * rr - driverX * driverX);
0048 } else if (jj == startpos + 2) {
0049 driverX = rr * cos(fac1 * dphi);
0050 driverY = -sqrt(rr * rr - driverX * driverX);
0051 } else if (jj == startpos + 3) {
0052 driverX = rr * cos(fac2 * dphi);
0053 driverY = -sqrt(rr * rr - driverX * driverX);
0054 }
0055 dd4hep::Position tran(driverX, driverY, driverZ);
0056
0057 parent.placeVolume(child, jj + 1, dd4hep::Transform3D(rot, tran));
0058 #ifdef EDM_ML_DEBUG
0059 edm::LogVerbatim("ForwardGeom") << "DDBHMAngular test: " << child.name() << " number " << jj + 1
0060 << " positioned in " << parent.name() << " at " << tran << " with " << rotMat
0061 << " : " << rot;
0062 #endif
0063 }
0064 return 1;
0065 }
0066
0067
0068 DECLARE_DDCMS_DETELEMENT(DDCMS_bhmalgo_DDBHMAngular, algorithm)