class TEveVector

 TEveVector

 Float three-vector; a inimal Float_t copy of TVector3 used to
 represent points and momenta (also used in VSD).

Function Members (Methods)

public:
TEveVector()
TEveVector(const Float_t* v)
TEveVector(const Double_t* v)
TEveVector(const TEveVector&)
TEveVector(Float_t x, Float_t y, Float_t z)
virtual~TEveVector()
const Float_t*Arr() const
Float_t*Arr()
static TClass*Class()
Float_tCosTheta() const
Float_tDistance(const TEveVector& b) const
Float_tDot(const TEveVector& a) const
Float_tEta() const
virtual TClass*IsA() const
Float_tMag() const
Float_tMag2() const
TEveVector&Mult(const TEveVector& a, Float_t af)
const Float_t*operator const Float_t*() const
Float_t*operator Float_t*()
TEveVectoroperator*(Float_t a)
TEveVector&operator*=(Float_t s)
TEveVectoroperator+(const TEveVector&)
TEveVector&operator+=(const TEveVector& v)
TEveVectoroperator-(const TEveVector&)
TEveVector&operator-=(const TEveVector& v)
TEveVector&operator=(const TEveVector&)
Float_t&operator[](Int_t idx)
Float_toperator[](Int_t idx) const
Float_tPerp() const
Float_tPerp2() const
Float_tPhi() const
Float_tR() const
voidSet(const Float_t* v)
voidSet(const Double_t* v)
voidSet(const TVector3& v)
voidSet(const TEveVector& v)
voidSet(Float_t x, Float_t y, Float_t z)
voidSet(Double_t x, Double_t y, Double_t z)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
Float_tSquareDistance(const TEveVector& b) const
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
Float_tTheta() const

Data Members

public:
Float_tfX
Float_tfY
Float_tfZComponents of the vector.

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

Float_t Eta()
 Calculate eta of the point, pretending it's a momentum vector.
Float_t Phi()



{ return fX == 0.0 && fY == 0.0 ? 0.0 : TMath::ATan2(fY, fX); }






Float_t Theta()



{ return fX == 0.0 && fY == 0.0 && fZ == 0.0 ? 0.0 : TMath::ATan2(Perp(), fZ); }






Float_t CosTheta()



{ Float_t ptot = Mag(); return ptot == 0.0 ? 1.0 : fZ/ptot; }






Float_t Distance(const TEveVector& b) const




Float_t SquareDistance(const TEveVector& b) const




Float_t Dot(const TEveVector& a) const






 TEveVector()



{}






 TEveVector(const Float_t* v)



{}






 TEveVector(const Double_t* v)



{}






 TEveVector(Float_t x, Float_t y, Float_t z)



{}






virtual ~TEveVector()



{}






 operator const Float_t*()



{ return &fX; }






const Float_t* Arr()



{ return &fX; }






Float_t* Arr()



{ return &fX; }






void Set(const Float_t*  v)



{ fX = v[0]; fY = v[1]; fZ = v[2]; }






void Set(const Double_t* v)



{ fX = v[0]; fY = v[1]; fZ = v[2]; }






void Set(Float_t  x, Float_t  y, Float_t  z)



{ fX = x; fY = y; fZ = z; }






void Set(Double_t x, Double_t y, Double_t z)



{ fX = x; fY = y; fZ = z; }






void Set(const TVector3& v)



{ fX = v.x(); fY = v.y(); fZ = v.z(); }






void Set(const TEveVector& v)



{ fX = v.fX;  fY = v.fY;  fZ = v.fZ;  }






Float_t Mag()



{ return TMath::Sqrt(fX*fX + fY*fY + fZ*fZ);}






Float_t Mag2()



{ return fX*fX + fY*fY + fZ*fZ;}






Float_t Perp()



{ return TMath::Sqrt(fX*fX + fY*fY);}






Float_t Perp2()



{ return fX*fX + fY*fY;}






Float_t R()



{ return Perp(); }






TEveVector& Mult(const TEveVector& a, Float_t af)



{ fX = a.fX*af; fY = a.fY*af; fZ = a.fZ*af; return *this; }






TEveMCTrack& operator=(const TEveVector& )



{ *((TParticle*)this) = p; return *this; }










Last change: root/eve:$Id: TEveVSDStructs.h 22539 2008-03-08 14:36:37Z rdm $

Last generated: 2008-05-13 17:10

Copyright   (C) 1995-2007, Rene Brun and Fons Rademakers.               *




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