/data/refman/pasoursint/CMSSW_5_3_10/src/Alignment/CocoaModel/src/OptOTiltmeter.cc

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//   COCOA class implementation file
//Id:  OptOTiltmeter.cc
//CAT: Model
//
//   History: v1.0 
//   Pedro Arce

#include "Alignment/CocoaModel/interface/OptOTiltmeter.h"
#include "Alignment/CocoaModel/interface/Measurement.h"
#include <iostream>
#include <iomanip>
#ifdef COCOA_VIS
#include "Alignment/CocoaVisMgr/interface/ALIVRMLMgr.h"
#include "Alignment/IgCocoaFileWriter/interface/IgCocoaFileMgr.h"
#endif
#include "Alignment/CocoaDDLObjects/interface/CocoaSolidShapeBox.h"
#include "Alignment/CocoaUtilities/interface/GlobalOptionMgr.h"

using namespace CLHEP;

//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@  Default behaviour: make measurement
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void OptOTiltmeter::defaultBehaviour( LightRay& lightray, Measurement& meas ) 
{
  makeMeasurement( lightray, meas);

}


//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@  Make measurement as angle with the horizontal plane = angle between local  Z axis and its projection on the global XZ plane 
//-Make measurement as rotations around X axis: difference between current Z axis and Z axis (0,0,1)
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void OptOTiltmeter::makeMeasurement( LightRay& lightray, Measurement& meas )
{

  //---------- Get local Z axix
  CLHEP::HepRotation rmt = rmGlob();
  CLHEP::Hep3Vector ZAxisl(0.,0.,1.);
  ZAxisl *= rmt;

  //--------- Get projection in a global XZ plane
  /*-plane parallel to global Y (gravity) and to tiltmeter Z
  CLHEP::Hep3Vector plane_point(0.,0.,0.);
  CLHEP::Hep3Vector plane_normal = ZAxisl.cross( CLHEP::Hep3Vector(0.,1.,0.) );
  CLHEP::Hep3Vector ZAxis_proj = (ALIPlane( plane_point, plane_normal)).project( ZAxisl );
  */
  CLHEP::Hep3Vector XAxisg(1.,0.,0.);
  CLHEP::Hep3Vector ZAxisg(0.,0.,1.);
  CLHEP::Hep3Vector ZAxis_proj = (ZAxisl*XAxisg) * XAxisg + (ZAxisl*ZAxisg) * ZAxisg;
  ZAxis_proj *= (1. / ZAxis_proj.mag() );

  //--------- Get measurement
  ALIdouble measvalue = acos(ZAxisl*ZAxis_proj / ZAxisl.mag() / ZAxis_proj.mag());
  //----- get sign of angle as sign of y component of ZAxis
  if( ZAxisl.y() != 0 ) measvalue *= (ZAxisl.y() / fabs(ZAxisl.y()) );
  meas.setValueSimulated(0 , measvalue ); 
  
  if (ALIUtils::debug >= 3) {
    ALIUtils::dump3v(ZAxisl," OptOTiltmeter: Local Z axis ");
    ALIUtils::dumprm(rmt," tiltmeter rotation matrix");
    ALIUtils::dump3v(ZAxis_proj," Projection of Local Z axis on global XZ plane ");
    std::cout << "SIMU value: TA: " << std::setprecision(8) << 1000*meas.valueSimulated(0)
         << " (mrad)  " << (this)->name() << std::endl;
    std::cout << "REAL value: TA: " << std::setprecision(8) << 1000*meas.value()[0] 
         << " (mrad)  " << (this)->name() << std::endl;

  }
 
  
   /*-  //---------- Get simulated value:
  CLHEP::HepRotation rmtori = rmGlobOriginal();
  CLHEP::Hep3Vector ZAxism(0.,0.,1.);
  CLHEP::Hep3Vector ZAxism_ori = ZAxism;
  ZAxism_ori *= rmtori;
      
  //---------- Measure rotation with respect to original position, around the X axis defined by the original position, in the original YZ plane
  CLHEP::Hep3Vector ZAxism_rot = ZAxism;
  CLHEP::HepRotation rmt = rmGlob();
  ZAxism_rot *= rmt;
  //----- Project on original YZ plane
  CLHEP::Hep3Vector YAxism_ori(0.,1.,0.);
  YAxism_ori *= rmtori;
  //--- create original YZ plane
  CLHEP::Hep3Vector YZplanePoint = centreGlob();
  CLHEP::Hep3Vector YZplaneNormal = YAxism_ori.cross( ZAxism_ori );
  ALIPlane yzorig( YZplanePoint, YZplaneNormal );
  CLHEP::Hep3Vector ZAxism_proj = yzorig.project( ZAxism_rot);
  //- ALIUtils::dump3v( YAxism_ori, "YAxism_ori");
  //- ALIUtils::dump3v( ZAxism_ori, "ZAxism_ori");
  //- ALIUtils::dump3v( ZAxism_rot, "ZAxism_rot");
  //- ALIUtils::dump3v( ZAxism_proj, "ZAxism_proj");
  ALIdouble measValue =  acos( ZAxism.dot(ZAxism_proj)/ZAxism_proj.mag() );
  if( ZAxism_proj.x() < 0) measValue *= -1.;
  meas.setValueSimulated(0 , measValue );
  
  if (ALIUtils::debug >= 3) {
    std::cout << " OptOTiltmeter: Original Z axis " << ZAxism_ori << std::endl;
    ALIUtils::dumprm(rmt," tiltmeter original rotation matrix");
    std::cout << " OptOTiltmeter: current Z axis " << ZAxism_rot << std::endl;
    ALIUtils::dumprm(rmt," tiltmeter current rotation matrix");
    std::cout << "SIMU value; TA: " << std::setprecision(8) << meas.valueSimulated(0)
         << " (rad)  " << (this)->name() << std::endl;
    std::cout << "REAL value: TA: " << std::setprecision(8) << meas.value()[0] 
         << " (rad)  " << (this)->name() << std::endl;

  }
  */
  
}

#ifdef COCOA_VIS
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void OptOTiltmeter::fillVRML()
{
  //-  std::cout << " filling optosensor " << std::endl;
  ALIVRMLMgr& vrmlmgr = ALIVRMLMgr::getInstance();
  ALIColour* col = new ALIColour( 1., 1., 0., 0. );
  vrmlmgr.AddBox( *this, .2, .2, 1., col);
  vrmlmgr.SendReferenceFrame( *this, 0.6); 
  vrmlmgr.SendName( *this, 0.01 );
}


//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void OptOTiltmeter::fillIguana()
{
  ALIColour* col = new ALIColour( 1., 0., 0.9, 0. );
  std::vector<ALIdouble> spar;
  spar.push_back(1.);
  spar.push_back(1.);
  spar.push_back(4.);
  IgCocoaFileMgr::getInstance().addSolid( *this, "BOX", spar, col);
}
#endif

//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
void OptOTiltmeter::constructSolidShape()
{
  ALIdouble go;
  GlobalOptionMgr* gomgr = GlobalOptionMgr::getInstance();
  gomgr->getGlobalOptionValue("VisScale", go );

  theSolidShape = new CocoaSolidShapeBox( "Box", go*2.*cm/m, go*2.*cm/m, go*5.*cm/m ); //COCOA internal units are meters
}