#ifndef HELICALCOOR_HH
#define  HELICALCOOR_HH
//
// $Id: HelicalCoordinate.hpp,v 1.2 2000/01/31 13:55:01 hobbs Exp $
//
// File: HelicalCoordinate.hpp
// Purpose: Represent a 2D point on helical surface.  Now just a
//          thin shell around spacegeom/CylindricalPoint
// Created: 14-JUL-1999   A. Mayorov
//
// $Revision: 1.2 $
//
//
#include <geometry_system/components/CylindricalCoordinate.hpp>

namespace dgs
{
  /**  A helical coordinate is specified by a position $z$ along an axis of helical surface and
       polar angle $phi$
  */
  class HelicalCoordinate: public CylindricalCoordinate
  {
  public:

    ///  Default constructor.
    HelicalCoordinate(): CylindricalCoordinate() {}

    ///  Construct local point at  $\phi$, $z$.
    HelicalCoordinate(double phi,double z): CylindricalCoordinate(0.0,phi,z) {}

  };

}

#endif // HELICALCOOR_HH