HGeomVertexFit2

class HGeomVertexFit2 : public TObject

    public:

                       HGeomVertexFit2()
                       HGeomVertexFit2(const HGeomVertexFit2&)
                       ~HGeomVertexFit2()
                  void addLine(const HGeomVector& r, const HGeomVector& alpha, HSymMat4& cov, Float_t zv, const Double_t w = 1.0)
        static TClass* Class()
                  void getVertex(HGeomVector& out)
       virtual TClass* IsA() const
      HGeomVertexFit2& operator=(const HGeomVertexFit2&)
                  void reset()
          virtual void ShowMembers(TMemberInspector& insp, char* parent)
          virtual void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      HGeomMatrix fM  Temporal matrix for calculations

    protected:

      HGeomMatrix fSys  LSM system inverse matrix
      HGeomVector fB    LSM independent term

Class Description

HGeomVertexFit

  Calculates the point of maximun approach to any given
set of n tracks with user specified weights.

  To start the operation the function reset() is called, then
addLine() should be used on all tracks on the sample and
finally getVertex() will provide the desired point.

  Note that getVertex() is not destructive, you can continue
adding lines after getVertex() was called

 The default constructor

 Everything that is constructed has to be destructed

 Function to add lines to the fit.
 Input
   r --> A point in the straight line
   alpha --> Direction vector
   w --> weight of this line in the fit
   cov --> Covariance matrix with elements
   		sigma(x, y, x', y')
   zv --> Stimation of z coord. of vertex

 This method fills the vector "out" with the coordinates
of the point of maximun approach to the lines added with
addLine()

 Resets the fitting procedure. That is, the class goes to the
state where no line was added

Inline Functions

                 TClass* Class()
                 TClass* IsA() const
                    void ShowMembers(TMemberInspector& insp, char* parent)
                    void Streamer(TBuffer& b)
                    void StreamerNVirtual(TBuffer& b)
         HGeomVertexFit2 HGeomVertexFit2(const HGeomVertexFit2&)
        HGeomVertexFit2& operator=(const HGeomVertexFit2&)