src/plugins/DDTrackerLinear.cpp

0001 //==========================================================================
0002 //  AIDA Detector description implementation
0003 //--------------------------------------------------------------------------
0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 // All rights reserved.
0006 //
0007 // For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 //
0010 // Author     : M.Frank
0011 //
0012 //==========================================================================
0013 //
0014 // Specialized generic detector constructor
0015 //
0016 //==========================================================================
0017
0018 // Framework include files
0019 #include "DD4hep/DetFactoryHelper.h"
0020 #include "DDCMS/DDCMSPlugins.h"
0021
0022 using namespace std;
0023 using namespace dd4hep;
0024 using namespace dd4hep::cms;
0025
0026 static long algorithm(Detector& /* description */,
0027                       ParsingContext& ctxt,
0028                       xml_h e,
0029                       SensitiveDetector& /* sens */)
0030 {
0031   Namespace      ns(ctxt, e, true);
0032   AlgoArguments  args(ctxt, e);
0033   int            startcn = args.find("StartCopyNo") ? args.value<int>("StartCopyNo") : 1;
0034   int            incrcn  = args.find("IncrCopyNo") ? args.value<int>("IncrCopyNo") : 1;
0035   int            number  = args.value<int>("Number");
0036   double         theta   = args.value<double>("Theta");
0037   double         phi     = args.value<double>("Phi");
0038   double         offset  = args.value<double>("Offset");
0039   double         delta   = args.value<double>("Delta");
0040   vector<double> centre  = args.value<vector<double> >("Center");
0041   string         rotMat  = args.value<string>("Rotation");
0042   Volume         mother  = ns.volume(args.parentName());
0043   Volume         child   = ns.volume(args.value<string>("ChildName"));
0044
0045   LogDebug("TrackerGeom") << "+++ Executing Algorithm. rParent:" << mother.name();
0046   LogDebug("TrackerGeom") << "debug: Parent " << mother.name()
0047       << "\tChild " << child.name() << " NameSpace "
0048       << ns.name << "\tNumber " << number
0049       << "\tAxis (theta/phi) " << theta/dd4hep::deg << ", "
0050       << phi/dd4hep::deg << "\t(Offset/Delta) " << offset
0051       << ", "  << delta << "\tCentre " << centre[0] << ", "
0052       << centre[1] << ", " << centre[2] << "\tRotation "
0053       << rotMat;
0054
0055   Position direction(sin(theta)*cos(phi),sin(theta)*sin(phi),cos(theta));
0056   Position base(centre[0],centre[1],centre[2]);
0057   RotationZYX   rot;
0058   if ( !rotMat.empty() ) {
0059     rot = ns.rotation(rotMat);
0060   }
0061   for (int i=0, ci=startcn; i<number; i++, ci += incrcn) {
0062     Position tran = base + (offset + double(i)*delta)*direction;
0063     // Copy number ???
0064     /* PlacedVolume pv = */ rotMat.empty()
0065       ? mother.placeVolume(child,ci,Transform3D(rot,tran))
0066       : mother.placeVolume(child,ci,tran);
0067     LogDebug("TrackerGeom") << child.name() << " number "
0068                             << ci << " positioned in " << mother.name() << " at "
0069                             << tran << " with " << rot;
0070   }
0071   return 1;
0072 }
0073
0074 // first argument is the type from the xml file
0075 DECLARE_DDCMS_DETELEMENT(DDCMS_track_DDTrackerLinear,algorithm)
0076