18#ifndef TRKGEOMTRAJVISITOR_H
19#define TRKGEOMTRAJVISITOR_H
22class TrkPieceLineTraj;
virtual void visitHelix(const BesHelixTraj *)=0
virtual ~TrkGeomTrajVisitor()
virtual void visitPieceLine(const TrkPieceLineTraj *)=0
virtual void visitLine(const TrkLineTraj *)=0