Track - vertex relationships

IVX = KORIV (ITK)

origin vertex of a track

IVX = KENDV (ITK)

end vertex of a track

ITK = KVINCP (IVX)

particle incoming to vertex IVX

To find the tracks outgoing from a vertex, the following loop must be performed:

              IVX = ... (vertex number; defined before)
              DO 10 I = 1, KVNDAU (IVX)
                ITK = KVDAU (IVX,I)
                CALL HFILL (47, QP(ITK))
         10   CONTINUE

KVNDAU (IVX)

number of outgoing tracks

KVDAU (IVX,I)

track number of Ith outgoing track