DDPixFwdDiskAlgo.cc

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// File: DDPixFwdDiskAlgo.cc
// Description: Position n copies at given z-values

#include <cmath>
#include <algorithm>

#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DetectorDescription/Core/interface/DDCurrentNamespace.h"
#include "DetectorDescription/Core/interface/DDSplit.h"
#include "Geometry/TrackerCommonData/plugins/DDPixFwdDiskAlgo.h"
#include "CLHEP/Units/PhysicalConstants.h"
#include "CLHEP/Units/SystemOfUnits.h"

DDPixFwdDiskAlgo::DDPixFwdDiskAlgo() {
  LogDebug("TrackerGeom") <<"DDPixFwdDiskAlgo info: Creating an instance";
}

DDPixFwdDiskAlgo::~DDPixFwdDiskAlgo() {}

void DDPixFwdDiskAlgo::initialize(const DDNumericArguments & nArgs,
                   const DDVectorArguments & vArgs,
                   const DDMapArguments & ,
                   const DDStringArguments & sArgs,
                   const DDStringVectorArguments & vsArgs) {

  startCopyNo = int(nArgs["StartCopyNo"]);
  nBlades     = int(nArgs["NumberOfBlades"]);
  bladeAngle  = nArgs["BladeAngle"];
  bladeTilt   = nArgs["BladeTilt"];
  zPlane      = nArgs["BladeCommonZ"];
  bladeZShift = vArgs["BladeZShift"];
  anchorR     = nArgs["AnchorRadius"];
 
  idNameSpace = DDCurrentNamespace::ns();
  childName   = sArgs["ChildName"]; 
  rotName     = sArgs["RotationName"]; 
  flagString  = sArgs["FlagString"];
  DDName parentName = parent().name();
  LogDebug("TrackerGeom") << "DDPixFwdDiskAlgo debug: Parent " << parentName 
              << "\tChild " << childName << " NameSpace " 
              << idNameSpace << "\tRot Name " << rotName
              << "\tCopyNo (Start/Total) " << startCopyNo << ", " 
              << nBlades << "\tAngles " << bladeAngle/CLHEP::deg 
              << ", " << bladeTilt/CLHEP::deg << "\tZshifts " 
              << zPlane << "\tAmnchor Radius " << anchorR;

  for (int iBlade=0; iBlade<nBlades; ++iBlade) {
    LogDebug("TrackerGeom") << "DDPixFwdDiskAlgo: Blade " << iBlade 
                << " flag " << flagString[iBlade] << " zshift "
                << bladeZShift[iBlade];
  }
}

void DDPixFwdDiskAlgo::execute(DDCompactView& cpv) {

  int    copy   = startCopyNo;
  DDName mother = parent().name();
  DDName child(DDSplit(childName).first, DDSplit(childName).second);
  std::string flagSelector = "Y";

  double deltaPhi   = (360./nBlades)*CLHEP::deg;
  std::string rotns = DDSplit(rotName).second;
  for (int iBlade=0; iBlade<nBlades; ++iBlade) {
    
    if (flagString[iBlade] == flagSelector[0]) {
      std::string rotstr = DDSplit(rotName).first + std::to_string(double(copy));

      double phi  = (iBlade+0.5)*deltaPhi;
//      double phi  = (iBlade+0.5)*deltaPhi - 90.*CLHEP::deg;
      double phix = std::atan2(std::sin(phi)*std::cos(bladeAngle),
                   std::cos(phi)*std::cos(bladeAngle));
      double thetx= std::acos(-std::sin(bladeAngle));
      double phiy = std::atan2((std::cos(phi)*std::cos(bladeTilt)+std::sin(phi)
                *std::sin(bladeAngle)*std::sin(bladeTilt)),
                   (-std::sin(phi)*std::cos(bladeTilt)+std::cos(phi)
                *std::sin(bladeAngle)*std::sin(bladeTilt)));
      double thety= std::acos(std::cos(bladeAngle)*std::sin(bladeTilt));
      double phiz = std::atan2((-std::cos(phi)*std::sin(bladeTilt)+std::sin(phi)
                *std::sin(bladeAngle)*std::cos(bladeTilt)),
                   (std::sin(phi)*std::sin(bladeTilt)+std::cos(phi)
                *std::sin(bladeAngle)*std::cos(bladeTilt)));
      double thetz= std::acos(std::cos(bladeAngle)*std::cos(bladeTilt));
      DDRotation rot = DDRotation(DDName(rotstr, rotns));
      if (!rot) {
    LogDebug("TrackerGeom") << "DDPixFwdDiskAlgo test: Creating a new "
                << "rotation: " << rotstr << "\t" 
                << thetx/CLHEP::deg << ", " << phix/CLHEP::deg 
                << ", " << thety/CLHEP::deg << ", " 
                << phiy/CLHEP::deg << ", " << thetz/CLHEP::deg
                << ", " << phiz/CLHEP::deg;
    LogDebug("TrackerGeom") << "Rotation Matrix (" << phi/CLHEP::deg << ", " << bladeAngle/CLHEP::deg << ", " << bladeTilt/CLHEP::deg << ") " << std::cos(phi)*std::cos(bladeAngle) << ", " << (-std::sin(phi)*std::cos(bladeTilt)+std::cos(phi)*std::sin(bladeAngle)*std::sin(bladeTilt)) << ", " << (std::sin(phi)*std::sin(bladeTilt)+std::cos(phi)*std::sin(bladeAngle)*std::cos(bladeTilt)) << ", " << std::sin(phi)*std::cos(bladeAngle) << ", " << (std::cos(phi)*std::cos(bladeTilt)+std::sin(phi)*std::sin(bladeAngle)*std::sin(bladeTilt)) << ", " << (-std::cos(phi)*std::sin(bladeTilt)+std::sin(phi)*std::sin(bladeAngle)*std::cos(bladeTilt)) << ", " << -std::sin(bladeAngle) << ", " << std::cos(bladeAngle)*std::sin(bladeTilt) << ", " << std::cos(bladeAngle)*std::cos(bladeTilt);
    rot = DDrot(DDName(rotstr, rotns), thetx,phix, thety,phiy, thetz,phiz);
      }
      double xpos = anchorR*(-std::sin(phi)*std::cos(bladeTilt)+std::cos(phi)
                 *std::sin(bladeAngle)*std::sin(bladeTilt));
      double ypos = anchorR*(std::cos(phi)*std::cos(bladeTilt)+std::sin(phi)
                 *std::sin(bladeAngle)*std::sin(bladeTilt));
      double zpos = anchorR*(std::cos(bladeAngle)*std::sin(bladeTilt))+zPlane+
    bladeZShift[iBlade];
      DDTranslation tran(xpos, ypos, zpos);
      cpv.position (child, mother, copy, tran, rot);
      LogDebug("TrackerGeom") << "DDPixFwdDiskAlgo test: " << child 
                  << " number " << copy << " positioned in "
                  << mother << " at " << tran << " with " << rot;
    }
    copy++;
  }
}