<commit_before>// Example macro to test available methods and operation on the 
// mathcore GenVector classes. The results are compared and check at the 
// numerical precision levels. 
// Some small discrepancy can appear when the macro 
// is executed on different architectures where it has been calibrated (Power PC G5)
// The macro is divided in 4 parts: 
//    - testVector3D          :  tests of the 3D Vector classes
//    - testPoint3D           :  tests of the 3D Point classes
//    - testLorentzVector     :  tests of the 4D LorentzVector classes
//    - testVectorUtil        :  tests of the utility functions of all the vector classes
//
// To execute the macro type in: 
//
// root[0]: .x  mathcoreGenVector.C


int ntest = 0; 
int nfail = 0; 
int ok = 0;

void mathcoreGenVector() {

  gSystem->Load("libMathCore");
  using namespace ROOT::Math;
 
  testVector3D();
  testPoint3D();
  testLorentzVector();
  testVectorUtil();

  std::cout << "\n\nNumber of tests " << ntest << " failed = " << nfail << std::endl;
}


int compare( double v1, double v2, const char* name, double Scale = 1.0) {
  ntest = ntest + 1; 

  // numerical double limit for epsilon 
  double eps = Scale* 2.22044604925031308e-16; 
  int iret = 0; 
  double delta = v2 - v1;
  if (delta < 0 ) delta = - delta; 
  if (v1 == 0 || v2 == 0) { 
    if  (delta > eps ) { 
      iret = 1; 
    }
  }
  // skip case v1 or v2 is infinity
  else { 
     double d = v1; 

    if ( v1 < 0) d = -d; 
    // add also case when delta is small by default
    if ( delta/d  > eps && delta > eps ) 
      iret =  1; 
  }

  if (iret == 0) 
    std::cout << ".";
  else { 
    int pr = std::cout.precision (18);
    std::cout << "\nDiscrepancy in " << name << "() : " << v1 << " != " << v2 << " discr = " << int(delta/d/eps) 
              << "   (Allowed discrepancy is " << eps  << ")\n";
    std::cout.precision (pr);
    nfail = nfail + 1;
  }
  return iret; 
}
      

  

int testVector3D() { 


  std::cout << "\n************************************************************************\n " 
	    << " Vector 3D Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  XYZVector v1(0.01, 0.02, 16);
  //XYZVector v1(1.0, 2.0, 3.0);

//   XYZVector v1(1.0, 2.0, 30.0);

//   double R = sqrt (v1.X()*v1.X() + v1.Y()*v1.Y() + v1.Z()*v1.Z());
//   // this formula in not precise enough
//   //  double Theta = R>0 ? acos ( v1.Z()/r ) : 0;
//   double Rho = sqrt (v1.X()*v1.X() + v1.Y()*v1.Y());
//   double Theta = v1.Z() == 0 || Rho == 0 ? 0 : atan2( Rho, v1.Z() );  
//   double Phi = Rho>0 ? atan2 (v1.Y(), v1.X()) : 0;

  std::cout << "Test Cartesian-Polar :          " ;

  Polar3DVector v2(v1.R(), v1.Theta(), v1.Phi() );

  ok = 0;
  ok+= compare(v1.X(), v2.X(), "x"); 
  ok+= compare(v1.Y(), v2.Y(), "y"); 
  ok+= compare(v1.Z(), v2.Z(), "z"); 
  ok+= compare(v1.Phi(), v2.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v2.Theta(), "theta"); 
  ok+= compare(v1.R(), v2.R(), "r"); 
  ok+= compare(v1.Eta(), v2.Eta(), "eta"); 
  ok+= ok+= compare(v1.Rho(), v2.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Cartesian-Cylindrical :    ";

  RhoEtaPhiVector v3( v1.Rho(), v1.Eta(), v1.Phi() ); 

  ok = 0;
  ok+= compare(v1.X(), v3.X(), "x"); 
  ok+= compare(v1.Y(), v3.Y(), "y"); 
  ok+= compare(v1.Z(), v3.Z(), "z"); 
  ok+= compare(v1.Phi(), v3.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v3.Theta(), "theta"); 
  ok+= compare(v1.R(), v3.R(), "r"); 
  ok+= compare(v1.Eta(), v3.Eta(), "eta"); 
  ok+= compare(v1.Rho(), v3.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Operations :               " ;

  ok = 0;
  double Dot = v1.Dot(v2);
  ok+= compare( Dot, v1.Mag2(),"dot"  );
  XYZVector vcross = v1.Cross(v2);
  ok+= compare( vcross.R(), 0,"cross"  );

  //std::cout << "\nTest Unit & scaling : " ;

  XYZVector vscale1 = v1*10;
  XYZVector vscale2 = vscale1/10;
  ok+= compare( v1.R(), vscale2.R(), "scale");

  XYZVector vu = v1.Unit();
  ok+= compare(v2.Phi(),vu.Phi(),"unit Phi");
  ok+= compare(v2.Theta(),vu.Theta(),"unit Theta");
  ok+= compare(1.0,vu.R(),"unit ");

  XYZVector q1 = v1;
  // RhoEtaPhiVector q2 = v1;  ! copy onstructor between different vector does not work yet)  
  RhoEtaPhiVector q2(1.0,1.0,1.0);
  
  XYZVector q3 = q1 + q2; 
  XYZVector q4 = q3 - q2; 

  ok+= compare( q4.X(), q1.X(), "op X"  );
  ok+= compare( q4.Y(), q1.Y(), "op Y" );
  ok+= compare( q4.Z(), q1.Z(), "op Z" );

  if (ok == 0) std::cout << "\t OK " << std::endl;


  //test setters
 
  std::cout << "Test Setters :                  " ;

  q2.SetXYZ(q1.X(), q1.Y(), q1.Z() );

  ok+= compare( q2.X(), q1.X(), "setXYZ X"  );
  ok+= compare( q2.Y(), q1.Y(), "setXYZ Y" );
  ok+= compare( q2.Z(), q1.Z(), "setXYZ Z" );

  q2.SetCoordinates( 2.0*q1.Rho(), q1.Eta(), q1.Phi() );
  q1s = 2.0*q1;
  ok+= compare( q2.X(), q1s.X(), "set X"  );
  ok+= compare( q2.Y(), q1s.Y(), "set Y" );
  ok+= compare( q2.Z(), q1s.Z(), "set Z" );
  

  if (ok == 0) std::cout << "\t\t OK " << std::endl;

  std::cout << "Test Linear Algebra conversion: " ;

  XYZVector vxyz1(1.,2.,3.); 
  
  TVectorD vla1(3);
  vxyz1.Coordinates().GetCoordinates(vla1.GetMatrixArray() );

  TVectorD vla2(3); 
  vla2[0] = 1.; vla2[1] = -2.; vla2[2] = 1.;

  XYZVector vxyz2; 
  vxyz2.SetCoordinates(&vla2[0]);

  ok = 0; 
  double prod1 =  vxyz1.Dot(vxyz2); 
  double prod2 = vla1*vla2; 
  ok+= compare( prod1, prod2, "la test" );

  if (ok == 0) std::cout << "\t\t OK " << std::endl;
  

}



int testPoint3D() { 

  std::cout << "\n************************************************************************\n " 
	    << " Point 3D Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  //XYZPoint p1(0.00001, 0.00001, 30000000000.0);
  XYZPoint p1(1.0, 2.0, 3.0);

  std::cout << "Test Cartesian-Polar :          ";

  Polar3DPoint p2(p1.R(), p1.Theta(), p1.Phi() );

  ok = 0;
  ok+= compare(p1.x(), p2.X(), "x"); 
  ok+= compare(p1.y(), p2.Y(), "y"); 
  ok+= compare(p1.z(), p2.Z(), "z"); 
  ok+= compare(p1.phi(), p2.Phi(), "phi"); 
  ok+= compare(p1.theta(), p2.Theta(), "theta"); 
  ok+= compare(p1.r(), p2.R(), "r"); 
  ok+= compare(p1.eta(), p2.Eta(), "eta"); 
  ok+= compare(p1.rho(), p2.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Polar-Cylindrical :        ";

  RhoEtaPhiPoint p3( p2.Rho(), p2.Eta(), p2.Phi() ); 

  ok = 0;
  ok+= compare(p2.X(), p3.X(), "x"); 
  ok+= compare(p2.Y(), p3.Y(), "y"); 
  ok+= compare(p2.Z(), p3.Z(), "z",3); 
  ok+= compare(p2.Phi(), p3.Phi(), "phi"); 
  ok+= compare(p2.Theta(), p3.Theta(), "theta"); 
  ok+= compare(p2.R(), p3.R(), "r"); 
  ok+= compare(p2.Eta(), p3.Eta(), "eta"); 
  ok+= compare(p2.Rho(), p3.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test operations :               ";
  //std::cout << "\nTest Dot and Cross products with Vectors : ";
  Polar3DVector vperp(1.,p1.Theta() + TMath::PiOver2(),p1.Phi() );
  double Dot = p1.Dot(vperp);
  ok+= compare( Dot, 0.0,"dot", 10  );

  XYZPoint vcross = p1.Cross(vperp);
  ok+= compare( vcross.R(), p1.R(),"cross mag"  );
  ok+= compare( vcross.Dot(vperp), 0.0,"cross dir"  );


  //RhoEtaPhiPoint q1 = p1;  ! constructor yet not working in CINT
  RhoEtaPhiPoint q1; q1 = p1; 
  q1.SetCoordinates(p1.Rho(),2.0, p1.Phi() );

  Polar3DVector v2(p1.R(), p1.Theta(),p1.Phi()); 

  
#ifdef WHEN_CINT_FIXED
  RhoEtaPhiPoint q3 = q1 + v2; 
  // point -point in vector does not work yet
  RhoEtaPhiPoint q4 = q3 - v2; 
  ok+= compare( q4.X(), q1.X(), "PV op X"  );
  ok+= compare( q4.Y(), q1.Y(), "PV op Y" );
  ok+= compare( q4.Z(), q1.Z(), "PV op Z" );
#endif

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


//   RhoEtaPhiVector v4 = q3 - q1; 
//   ok+= compare( v4.X(), v2.X(), "op X"  );
//   ok+= compare( v4.Y(), v2.Y(), "op Y" );
//   ok+= compare( v4.Z(), v2.Z(), "op Z" );



}




int testLorentzVector() { 

  std::cout << "\n************************************************************************\n " 
	    << " Loorentz Vector Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  //XYZTVector v1(0.00001, 0.00001, 30000000000.0);
  XYZTVector v1(1.0, 2.0, 3.0, 4.0);


  std::cout << "Test Cartesian-Cylindrical4D :  ";

  PtEtaPhiEVector v2( v1.Rho(), v1.Eta(), v1.Phi(), v1.E() ); 

  ok = 0;
  ok+= compare(v1.Px(), v2.X(), "x"); 
  ok+= compare(v1.Py(), v2.Y(), "y"); 
  ok+= compare(v1.Pz(), v2.Z(), "z", 2); 
  ok+= compare(v1.E(), v2.T(), "e"); 
  ok+= compare(v1.Phi(), v2.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v2.Theta(), "theta"); 
  ok+= compare(v1.Pt(), v2.Pt(), "pt"); 
  ok+= compare(v1.M(), v2.M(), "mass", 5); 
  ok+= compare(v1.Et(), v2.Et(), "et"); 
  ok+= compare(v1.Mt(), v2.Mt(), "mt", 3); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test operations :               ";
  //std::cout << "\nTest Dot product : " ;

  ok = 0;
  double Dot = v1.Dot(v2);
  ok+= compare( Dot, v1.M2(),"dot" , 10 );

  //std::cout << "\nTest scaling : " ;

  XYZTVector vscale1 = v1*10;
  XYZTVector vscale2 = vscale1/10;
  ok+= compare( v1.M(), vscale2.M(), "scale");


  XYZTVector q1 = v1;
  // RhoEtaPhiVector q2 = v1;  ! copy onstructor between different vector does not work yet)  
  PtEtaPhiEVector  q2(1.0,1.0,1.0,5.0); 
  
  XYZTVector q3 = q1 + q2; 
  XYZTVector q4 = q3 - q2; 

  ok+= compare( q4.x(), q1.X(), "op X"  );
  ok+= compare( q4.y(), q1.Y(), "op Y" );
  ok+= compare( q4.z(), q1.Z(), "op Z" );
  ok+= compare( q4.t(), q1.E(), "op E" );

  if (ok == 0) std::cout << "\t\t OK " << std::endl;

  //test setters
 
  std::cout << "Test Setters :                  " ;

  q2.SetXYZT(q1.Px(), q1.Py(), q1.Pz(), q1.E() );

  ok+= compare( q2.X(), q1.X(), "setXYZT X"  );
  ok+= compare( q2.Y(), q1.Y(), "setXYZT Y" );
  ok+= compare( q2.Z(), q1.Z(), "setXYZT Z" ,2);
  ok+= compare( q2.T(), q1.E(), "setXYZT E" );

  q2.SetCoordinates( 2.0*q1.Rho(), q1.Eta(), q1.Phi(), 2.0*q1.E() );
  q1s = q1*2.0;
  ok+= compare( q2.X(), q1s.X(), "set X"  );
  ok+= compare( q2.Y(), q1s.Y(), "set Y" );
  ok+= compare( q2.Z(), q1s.Z(), "set Z" ,2);
  ok+= compare( q2.T(), q1s.T(),  "set E" );
 

  if (ok == 0) std::cout << "\t OK " << std::endl;


}


int testVectorUtil() { 

 
  std::cout << "\n************************************************************************\n " 
	    << " Utility Function Test" 
	    << "\n************************************************************************\n";

  std::cout << "Test Vector utility functions : ";


  XYZVector v1(1.0, 2.0, 3.0); 
  Polar3DVector v2pol(v1.R(), v1.Theta()+TMath::PiOver2(), v1.Phi() + 1.0); 
  // mixedmethods not yet impl. 
  XYZVector v2; v2 = v2pol; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(v1,v2), 1.0, "deltaPhi Vec");
  
  RhoEtaPhiVector v2cyl(v1.Rho(), v1.Eta() + 1.0, v1.Phi() + 1.0);
  v2 = v2cyl; 


  ok += compare( VectorUtil::DeltaR(v1,v2), sqrt(2.0), "DeltaR Vec");

  XYZVector vperp = v1.Cross(v2);
  ok += compare( VectorUtil::CosTheta(v1,vperp), 0.0, "costheta Vec");
  ok += compare( VectorUtil::Angle(v1,vperp), TMath::PiOver2(), "angle Vec");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


  std::cout << "Test Point utility functions :  ";


  XYZPoint p1(1.0, 2.0, 3.0); 
  Polar3DPoint p2pol(p1.R(), p1.Theta()+TMath::PiOver2(), p1.Phi() + 1.0); 
  // mixedmethods not yet impl. 
  XYZPoint p2; p2 = p2pol; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(p1,p2), 1.0, "deltaPhi Point");
  
  RhoEtaPhiPoint p2cyl(p1.Rho(), p1.Eta() + 1.0, p1.Phi() + 1.0);
  p2 = p2cyl; 
  ok += compare( VectorUtil::DeltaR(p1,p2), sqrt(2.0), "DeltaR Point");

  XYZPoint pperp(vperp.X(), vperp.Y(), vperp.Z());
  ok += compare( VectorUtil::CosTheta(p1,pperp), 0.0, "costheta Point");
  ok += compare( VectorUtil::Angle(p1,pperp), TMath::PiOver2(), "angle Point");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


  std::cout << "LorentzVector utility funct.:   ";


  XYZTVector q1(1.0, 2.0, 3.0,4.0); 
  PtEtaPhiEVector q2cyl(q1.Pt(), q1.Eta()+1.0, q1.Phi() + 1.0, q1.E() ); 
  // mixedmethods not yet impl. 
  XYZTVector q2; q2 = q2cyl; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(q1,q2), 1.0, "deltaPhi LVec");
  ok += compare( VectorUtil::DeltaR(q1,q2), sqrt(2.0), "DeltaR LVec");
  
  XYZTVector qsum = q1+q2; 
  ok += compare( VectorUtil::InvariantMass(q1,q2), qsum.M(), "InvMass");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


}<commit_msg>From Lorenzo: patch for tutorials/mathcoreGenVector.C<commit_after>// Example macro to test available methods and operation on the 
// mathcore GenVector classes. The results are compared and check at the 
// numerical precision levels. 
// Some small discrepancy can appear when the macro 
// is executed on different architectures where it has been calibrated (Power PC G5)
// The macro is divided in 4 parts: 
//    - testVector3D          :  tests of the 3D Vector classes
//    - testPoint3D           :  tests of the 3D Point classes
//    - testLorentzVector     :  tests of the 4D LorentzVector classes
//    - testVectorUtil        :  tests of the utility functions of all the vector classes
//
// To execute the macro type in: 
//
// root[0]: .x  mathcoreGenVector.C


int ntest = 0; 
int nfail = 0; 
int ok = 0;

void mathcoreGenVector() {

  gSystem->Load("libMathCore");
  using namespace ROOT::Math;
 
  testVector3D();
  testPoint3D();
  testLorentzVector();
  testVectorUtil();
  testRotation();

  std::cout << "\n\nNumber of tests " << ntest << " failed = " << nfail << std::endl;
}


int compare( double v1, double v2, const char* name, double Scale = 1.0) {
  ntest = ntest + 1; 

  // numerical double limit for epsilon 
  double eps = Scale* 2.22044604925031308e-16; 
  int iret = 0; 
  double delta = v2 - v1;
  if (delta < 0 ) delta = - delta; 
  if (v1 == 0 || v2 == 0) { 
    if  (delta > eps ) { 
      iret = 1; 
    }
  }
  // skip case v1 or v2 is infinity
  else { 
     double d = v1; 

    if ( v1 < 0) d = -d; 
    // add also case when delta is small by default
    if ( delta/d  > eps && delta > eps ) 
      iret =  1; 
  }

  if (iret == 0) 
    std::cout << ".";
  else { 
    int pr = std::cout.precision (18);
    std::cout << "\nDiscrepancy in " << name << "() : " << v1 << " != " << v2 << " discr = " << int(delta/d/eps) 
              << "   (Allowed discrepancy is " << eps  << ")\n";
    std::cout.precision (pr);
    nfail = nfail + 1;
  }
  return iret; 
}
      

  

int testVector3D() { 


  std::cout << "\n************************************************************************\n " 
	    << " Vector 3D Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  XYZVector v1(0.01, 0.02, 16);
  //XYZVector v1(1.0, 2.0, 3.0);

//   XYZVector v1(1.0, 2.0, 30.0);

//   double R = sqrt (v1.X()*v1.X() + v1.Y()*v1.Y() + v1.Z()*v1.Z());
//   // this formula in not precise enough
//   //  double Theta = R>0 ? acos ( v1.Z()/r ) : 0;
//   double Rho = sqrt (v1.X()*v1.X() + v1.Y()*v1.Y());
//   double Theta = v1.Z() == 0 || Rho == 0 ? 0 : atan2( Rho, v1.Z() );  
//   double Phi = Rho>0 ? atan2 (v1.Y(), v1.X()) : 0;

  std::cout << "Test Cartesian-Polar :          " ;

  Polar3DVector v2(v1.R(), v1.Theta(), v1.Phi() );

  ok = 0;
  ok+= compare(v1.X(), v2.X(), "x"); 
  ok+= compare(v1.Y(), v2.Y(), "y"); 
  ok+= compare(v1.Z(), v2.Z(), "z"); 
  ok+= compare(v1.Phi(), v2.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v2.Theta(), "theta"); 
  ok+= compare(v1.R(), v2.R(), "r"); 
  ok+= compare(v1.Eta(), v2.Eta(), "eta"); 
  ok+= ok+= compare(v1.Rho(), v2.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Cartesian-Cylindrical :    ";

  RhoEtaPhiVector v3( v1.Rho(), v1.Eta(), v1.Phi() ); 

  ok = 0;
  ok+= compare(v1.X(), v3.X(), "x"); 
  ok+= compare(v1.Y(), v3.Y(), "y"); 
  ok+= compare(v1.Z(), v3.Z(), "z"); 
  ok+= compare(v1.Phi(), v3.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v3.Theta(), "theta"); 
  ok+= compare(v1.R(), v3.R(), "r"); 
  ok+= compare(v1.Eta(), v3.Eta(), "eta"); 
  ok+= compare(v1.Rho(), v3.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Operations :               " ;

  ok = 0;
  double Dot = v1.Dot(v2);
  ok+= compare( Dot, v1.Mag2(),"dot"  );
  XYZVector vcross = v1.Cross(v2);
  ok+= compare( vcross.R(), 0,"cross"  );

  //std::cout << "\nTest Unit & scaling : " ;

  XYZVector vscale1 = v1*10;
  XYZVector vscale2 = vscale1/10;
  ok+= compare( v1.R(), vscale2.R(), "scale");

  XYZVector vu = v1.Unit();
  ok+= compare(v2.Phi(),vu.Phi(),"unit Phi");
  ok+= compare(v2.Theta(),vu.Theta(),"unit Theta");
  ok+= compare(1.0,vu.R(),"unit ");

  XYZVector q1 = v1;
  // RhoEtaPhiVector q2 = v1;  ! copy onstructor between different vector does not work yet)  
  RhoEtaPhiVector q2(1.0,1.0,1.0);
  
  XYZVector q3 = q1 + q2; 
  XYZVector q4 = q3 - q2; 

  ok+= compare( q4.X(), q1.X(), "op X"  );
  ok+= compare( q4.Y(), q1.Y(), "op Y" );
  ok+= compare( q4.Z(), q1.Z(), "op Z" );

  if (ok == 0) std::cout << "\t OK " << std::endl;


  //test setters
 
  std::cout << "Test Setters :                  " ;

  q2.SetXYZ(q1.X(), q1.Y(), q1.Z() );

  ok+= compare( q2.X(), q1.X(), "setXYZ X"  );
  ok+= compare( q2.Y(), q1.Y(), "setXYZ Y" );
  ok+= compare( q2.Z(), q1.Z(), "setXYZ Z" );

  q2.SetCoordinates( 2.0*q1.Rho(), q1.Eta(), q1.Phi() );
  q1s = 2.0*q1;
  ok+= compare( q2.X(), q1s.X(), "set X"  );
  ok+= compare( q2.Y(), q1s.Y(), "set Y" );
  ok+= compare( q2.Z(), q1s.Z(), "set Z" );
  

  if (ok == 0) std::cout << "\t\t OK " << std::endl;

  std::cout << "Test Linear Algebra conversion: " ;

  XYZVector vxyz1(1.,2.,3.); 
  
  TVectorD vla1(3);
  vxyz1.Coordinates().GetCoordinates(vla1.GetMatrixArray() );

  TVectorD vla2(3); 
  vla2[0] = 1.; vla2[1] = -2.; vla2[2] = 1.;

  XYZVector vxyz2; 
  vxyz2.SetCoordinates(&vla2[0]);

  ok = 0; 
  double prod1 =  vxyz1.Dot(vxyz2); 
  double prod2 = vla1*vla2; 
  ok+= compare( prod1, prod2, "la test" );

  if (ok == 0) std::cout << "\t\t OK " << std::endl;
  

}



int testPoint3D() { 

  std::cout << "\n************************************************************************\n " 
	    << " Point 3D Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  //XYZPoint p1(0.00001, 0.00001, 30000000000.0);
  XYZPoint p1(1.0, 2.0, 3.0);

  std::cout << "Test Cartesian-Polar :          ";

  Polar3DPoint p2(p1.R(), p1.Theta(), p1.Phi() );

  ok = 0;
  ok+= compare(p1.x(), p2.X(), "x"); 
  ok+= compare(p1.y(), p2.Y(), "y"); 
  ok+= compare(p1.z(), p2.Z(), "z"); 
  ok+= compare(p1.phi(), p2.Phi(), "phi"); 
  ok+= compare(p1.theta(), p2.Theta(), "theta"); 
  ok+= compare(p1.r(), p2.R(), "r"); 
  ok+= compare(p1.eta(), p2.Eta(), "eta"); 
  ok+= compare(p1.rho(), p2.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Polar-Cylindrical :        ";

  RhoEtaPhiPoint p3( p2.Rho(), p2.Eta(), p2.Phi() ); 

  ok = 0;
  ok+= compare(p2.X(), p3.X(), "x"); 
  ok+= compare(p2.Y(), p3.Y(), "y"); 
  ok+= compare(p2.Z(), p3.Z(), "z",3); 
  ok+= compare(p2.Phi(), p3.Phi(), "phi"); 
  ok+= compare(p2.Theta(), p3.Theta(), "theta"); 
  ok+= compare(p2.R(), p3.R(), "r"); 
  ok+= compare(p2.Eta(), p3.Eta(), "eta"); 
  ok+= compare(p2.Rho(), p3.Rho(), "rho"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test operations :               ";
  //std::cout << "\nTest Dot and Cross products with Vectors : ";
  Polar3DVector vperp(1.,p1.Theta() + TMath::PiOver2(),p1.Phi() );
  double Dot = p1.Dot(vperp);
  ok+= compare( Dot, 0.0,"dot", 10  );

  XYZPoint vcross = p1.Cross(vperp);
  ok+= compare( vcross.R(), p1.R(),"cross mag"  );
  ok+= compare( vcross.Dot(vperp), 0.0,"cross dir"  );


  //RhoEtaPhiPoint q1 = p1;  ! constructor yet not working in CINT
  RhoEtaPhiPoint q1; q1 = p1; 
  q1.SetCoordinates(p1.Rho(),2.0, p1.Phi() );

  Polar3DVector v2(p1.R(), p1.Theta(),p1.Phi()); 

  
#ifdef WHEN_CINT_FIXED
  RhoEtaPhiPoint q3 = q1 + v2; 
  // point -point in vector does not work yet
  RhoEtaPhiPoint q4 = q3 - v2; 
  ok+= compare( q4.X(), q1.X(), "PV op X"  );
  ok+= compare( q4.Y(), q1.Y(), "PV op Y" );
  ok+= compare( q4.Z(), q1.Z(), "PV op Z" );
#endif

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


//   RhoEtaPhiVector v4 = q3 - q1; 
//   ok+= compare( v4.X(), v2.X(), "op X"  );
//   ok+= compare( v4.Y(), v2.Y(), "op Y" );
//   ok+= compare( v4.Z(), v2.Z(), "op Z" );



}




int testLorentzVector() { 

  std::cout << "\n************************************************************************\n " 
	    << " Loorentz Vector Test" 
	    << "\n************************************************************************\n";


  int ret = 0;

  //XYZTVector v1(0.00001, 0.00001, 30000000000.0);
  XYZTVector v1(1.0, 2.0, 3.0, 4.0);


  std::cout << "Test Cartesian-Cylindrical4D :  ";

  PtEtaPhiEVector v2( v1.Rho(), v1.Eta(), v1.Phi(), v1.E() ); 

  ok = 0;
  ok+= compare(v1.Px(), v2.X(), "x"); 
  ok+= compare(v1.Py(), v2.Y(), "y"); 
  ok+= compare(v1.Pz(), v2.Z(), "z", 2); 
  ok+= compare(v1.E(), v2.T(), "e"); 
  ok+= compare(v1.Phi(), v2.Phi(), "phi"); 
  ok+= compare(v1.Theta(), v2.Theta(), "theta"); 
  ok+= compare(v1.Pt(), v2.Pt(), "pt"); 
  ok+= compare(v1.M(), v2.M(), "mass", 5); 
  ok+= compare(v1.Et(), v2.Et(), "et"); 
  ok+= compare(v1.Mt(), v2.Mt(), "mt", 3); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test operations :               ";
  //std::cout << "\nTest Dot product : " ;

  ok = 0;
  double Dot = v1.Dot(v2);
  ok+= compare( Dot, v1.M2(),"dot" , 10 );

  //std::cout << "\nTest scaling : " ;

  XYZTVector vscale1 = v1*10;
  XYZTVector vscale2 = vscale1/10;
  ok+= compare( v1.M(), vscale2.M(), "scale");


  XYZTVector q1 = v1;
  // RhoEtaPhiVector q2 = v1;  ! copy onstructor between different vector does not work yet)  
  PtEtaPhiEVector  q2(1.0,1.0,1.0,5.0); 
  
  XYZTVector q3 = q1 + q2; 
  XYZTVector q4 = q3 - q2; 

  ok+= compare( q4.x(), q1.X(), "op X"  );
  ok+= compare( q4.y(), q1.Y(), "op Y" );
  ok+= compare( q4.z(), q1.Z(), "op Z" );
  ok+= compare( q4.t(), q1.E(), "op E" );

  if (ok == 0) std::cout << "\t\t OK " << std::endl;

  //test setters
 
  std::cout << "Test Setters :                  " ;

  q2.SetXYZT(q1.Px(), q1.Py(), q1.Pz(), q1.E() );

  ok+= compare( q2.X(), q1.X(), "setXYZT X"  );
  ok+= compare( q2.Y(), q1.Y(), "setXYZT Y" );
  ok+= compare( q2.Z(), q1.Z(), "setXYZT Z" ,2);
  ok+= compare( q2.T(), q1.E(), "setXYZT E" );

  q2.SetCoordinates( 2.0*q1.Rho(), q1.Eta(), q1.Phi(), 2.0*q1.E() );
  q1s = q1*2.0;
  ok+= compare( q2.X(), q1s.X(), "set X"  );
  ok+= compare( q2.Y(), q1s.Y(), "set Y" );
  ok+= compare( q2.Z(), q1s.Z(), "set Z" ,2);
  ok+= compare( q2.T(), q1s.T(),  "set E" );
 

  if (ok == 0) std::cout << "\t OK " << std::endl;


}


int testVectorUtil() { 

 
  std::cout << "\n************************************************************************\n " 
	    << " Utility Function Test" 
	    << "\n************************************************************************\n";

  std::cout << "Test Vector utility functions : ";


  XYZVector v1(1.0, 2.0, 3.0); 
  Polar3DVector v2pol(v1.R(), v1.Theta()+TMath::PiOver2(), v1.Phi() + 1.0); 
  // mixedmethods not yet impl. 
  XYZVector v2; v2 = v2pol; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(v1,v2), 1.0, "deltaPhi Vec");
  
  RhoEtaPhiVector v2cyl(v1.Rho(), v1.Eta() + 1.0, v1.Phi() + 1.0);
  v2 = v2cyl; 


  ok += compare( VectorUtil::DeltaR(v1,v2), sqrt(2.0), "DeltaR Vec");

  XYZVector vperp = v1.Cross(v2);
  ok += compare( VectorUtil::CosTheta(v1,vperp), 0.0, "costheta Vec");
  ok += compare( VectorUtil::Angle(v1,vperp), TMath::PiOver2(), "angle Vec");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


  std::cout << "Test Point utility functions :  ";


  XYZPoint p1(1.0, 2.0, 3.0); 
  Polar3DPoint p2pol(p1.R(), p1.Theta()+TMath::PiOver2(), p1.Phi() + 1.0); 
  // mixedmethods not yet impl. 
  XYZPoint p2; p2 = p2pol; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(p1,p2), 1.0, "deltaPhi Point");
  
  RhoEtaPhiPoint p2cyl(p1.Rho(), p1.Eta() + 1.0, p1.Phi() + 1.0);
  p2 = p2cyl; 
  ok += compare( VectorUtil::DeltaR(p1,p2), sqrt(2.0), "DeltaR Point");

  XYZPoint pperp(vperp.X(), vperp.Y(), vperp.Z());
  ok += compare( VectorUtil::CosTheta(p1,pperp), 0.0, "costheta Point");
  ok += compare( VectorUtil::Angle(p1,pperp), TMath::PiOver2(), "angle Point");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


  std::cout << "LorentzVector utility funct.:   ";


  XYZTVector q1(1.0, 2.0, 3.0,4.0); 
  PtEtaPhiEVector q2cyl(q1.Pt(), q1.Eta()+1.0, q1.Phi() + 1.0, q1.E() ); 
  // mixedmethods not yet impl. 
  XYZTVector q2; q2 = q2cyl; 

  ok = 0; 
  ok += compare( VectorUtil::DeltaPhi(q1,q2), 1.0, "deltaPhi LVec");
  ok += compare( VectorUtil::DeltaR(q1,q2), sqrt(2.0), "DeltaR LVec");
  
  XYZTVector qsum = q1+q2; 
  ok += compare( VectorUtil::InvariantMass(q1,q2), qsum.M(), "InvMass");

  if (ok == 0) std::cout << "\t\t OK " << std::endl;


}



int testRotation() { 

 
  std::cout << "\n************************************************************************\n " 
	    << " Rotation Test" 
	    << "\n************************************************************************\n";

  std::cout << "Test Vector Rotations :         ";


  XYZPoint v(1.,2,3.); 

  double pi = TMath::Pi();
  EulerAngles r1( pi/2.,pi/4., pi );
  //  AxisAngle   r2(r1); (this not yet implemented)
  Rotation3D  r2(r1);
  AxisAngle   r3(r2);
  Quaternion  r4(r3);

  XYZPoint v1 = r1(v);
  XYZPoint v2 = r2(v);
  XYZPoint v3 = r3(v);
  XYZPoint v4 = r4(v);
  
  ok+= compare(v1.X(), v2.X(), "x"); 
  ok+= compare(v1.Y(), v2.Y(), "y"); 
  ok+= compare(v1.Z(), v2.Z(), "z"); 

  ok+= compare(v1.X(), v3.X(), "x"); 
  ok+= compare(v1.Y(), v3.Y(), "y"); 
  ok+= compare(v1.Z(), v3.Z(), "z"); 

  ok+= compare(v1.X(), v4.X(), "x"); 
  ok+= compare(v1.Y(), v4.Y(), "y"); 
  ok+= compare(v1.Z(), v4.Z(), "z"); 

  // test with matrix
  double rdata[9]; 
  r2.GetComponents(rdata, rdata+9);
  TMatrixD m(3,3,rdata);
  double vdata[3];
  v.GetCoordinates(vdata);
  TVectorD q(3,vdata);
  TVectorD q2 = m*q; 
  
  XYZPoint v5; 
  v5.SetCoordinates( q2.GetMatrixArray() );

  ok+= compare(v1.X(), v5.X(), "x"); 
  ok+= compare(v1.Y(), v5.Y(), "y"); 
  ok+= compare(v1.Z(), v5.Z(), "z"); 


  if (ok == 0) std::cout << "\t OK " << std::endl;

  std::cout << "Test Inversions :               "; 

  EulerAngles s1 = r1.Inverse();
  Rotation3D  s2 = r2.Inverse();
  AxisAngle   s3 = r3.Inverse();
  Quaternion  s4 = r4.Inverse();
  
  // euler angles not yet impl.
  XYZPoint p = s2 * r2 * v; 
  
  ok+= compare(p.X(), v.X(), "x",10); 
  ok+= compare(p.Y(), v.Y(), "y",10); 
  ok+= compare(p.Z(), v.Z(), "z",10); 

  XYZPoint p = s3 * r3 * v; 
  // axis angle inversion not very precise
  ok+= compare(p.X(), v.X(), "x",1E9); 
  ok+= compare(p.Y(), v.Y(), "y",1E9); 
  ok+= compare(p.Z(), v.Z(), "z",1E9); 

  XYZPoint p = s4 * r4 * v; 
  
  ok+= compare(p.X(), v.X(), "x",10); 
  ok+= compare(p.Y(), v.Y(), "y",10); 
  ok+= compare(p.Z(), v.Z(), "z",10); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

  
  std::cout << "Test Transform3D :              "; 

  XYZVector d(1.,-2.,3.);
  Transform3D t(r2,d);
  
  XYZPoint pd = t * v;
  // apply directly rotation
  XYZPoint vd = r2 * v + d; 

  ok+= compare(pd.X(), vd.X(), "x"); 
  ok+= compare(pd.Y(), vd.Y(), "y"); 
  ok+= compare(pd.Z(), vd.Z(), "z"); 

  // test with matrix 
  double tdata[12]; 
  t.GetComponents(tdata, tdata+12);
  TMatrixD mt(3,4,tdata);
  double vData[4]; // needs a vector of dim 4 
  v.GetCoordinates(vData);
  vData[3] = 1;
  TVectorD q0(4,vData);
  
  TVectorD qt = mt*q0; 

  ok+= compare(pd.X(), qt(0), "x"); 
  ok+= compare(pd.Y(), qt(1), "y"); 
  ok+= compare(pd.Z(), qt(2), "z"); 


  // test inverse 

  Transform3D tinv = t.Inverse();
  
  p = tinv * t * v; 

  ok+= compare(p.X(), v.X(), "x",10); 
  ok+= compare(p.Y(), v.Y(), "y",10); 
  ok+= compare(p.Z(), v.Z(), "z",10); 

  if (ok == 0) std::cout << "\t OK " << std::endl;


  std::cout << "Test LorentzRotation :          "; 

  XYZTVector lv(1.,2.,3.,4.);
  
  // test from rotx (using boosts and 3D rotations not yet impl.)
  RotationX rx(pi/4);
  LorentzRotation rl(rx);
  //  cout << Rotation3D(rx) << endl;

  XYZTVector lv1 = rl * lv; 

  XYZTVector lv2 = rx * lv; 
    
  ok+= compare(lv1.X(), lv2.X(), "x"); 
  ok+= compare(lv1.Y(), lv2.Y(), "y"); 
  ok+= compare(lv1.Z(), lv2.Z(), "z"); 
  ok+= compare(lv1.E(), lv2.E(), "t"); 

  double rlData[16];
  rl.GetComponents(rlData, rlData+16);
  TMatrixD ml(4,4,rlData); 
  //  ml.Print();
  double lvData[4];
  lv.GetCoordinates(lvData);
  TVectorD ql(4,lvData); 

  qlr = ml*ql; 

  ok+= compare(lv1.X(), qlr(0), "x"); 
  ok+= compare(lv1.Y(), qlr(1), "y"); 
  ok+= compare(lv1.Z(), qlr(2), "z"); 
  ok+= compare(lv1.E(), qlr(3), "t"); 

  // test inverse 

  XYZTVector lv0 = rl * rl.Inverse() * lv; 

  ok+= compare(lv0.X(), lv.X(), "x"); 
  ok+= compare(lv0.Y(), lv.Y(), "y"); 
  ok+= compare(lv0.Z(), lv.Z(), "z"); 
  ok+= compare(lv0.E(), lv.E(), "t"); 

  if (ok == 0) std::cout << "\t OK " << std::endl;

}
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