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Vertex.cpp

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#include "Vertex.h"

//-----------------------------------------------------------------------
// Vertex member functions
//-----------------------------------------------------------------------
 
// default constructor
Vertex::Vertex() { 
  HepSymMatrix temp(3,0);
  _cov_matrix.assign(temp);
  _cov_matrix(1,1) = -1.;
}

//-----------------------------------------------------------------------
// construct Vertex from an Aleph vertex
Vertex::Vertex(QvrtBase* vertex) {
  HepSymMatrix temp(3,0);
  _cov_matrix.assign(temp);

  _v3V.setX(vertex->QX());
  _v3V.setY(vertex->QY());
  _v3V.setZ(vertex->QZ()); 
  _cov_matrix = vertex->QVEM();
}
    
//-----------------------------------------------------------------------
// set Vertex parameters according to a Aleph vertex
void Vertex::setVertexParameters(QvrtBase* vertex) {
  _v3V.setX(vertex->QX());
  _v3V.setY(vertex->QY());
  _v3V.setZ(vertex->QZ()); 
  _cov_matrix = vertex->QVEM();
} 
 
//-----------------------------------------------------------------------
// set Vertex position
void Vertex::setVertexPosition(float x, float y, float z) {
  _v3V.setX(x);
  _v3V.setY(y);
  _v3V.setZ(z); 
} 

//-----------------------------------------------------------------------
// set Vertex position
void Vertex::setVertexPosition(Hep3Vector* pv) {
  _v3V = *pv;
} 


//-----------------------------------------------------------------------
// set Vertex covariance matrix (single element)
void Vertex::setVertexCov(int m, int n, float val) {
  _cov_matrix(m,n) = val;
} 

//-----------------------------------------------------------------------
// set Vertex covariance matrix (single element)
void Vertex::setVertexCov(HepSymMatrix* newMatrix) {
  _cov_matrix = *newMatrix;
} 

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