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Hyperbolic.h

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// $Id: Hyperbolic.h,v 1.2 2000/01/18 00:42:07 burnett Exp $
//

#ifndef HYPERBOLIC_H
#define HYPERBOLIC_H

#include "geometry/Surface.h"

class Hyperbolic : public Surface
{
  public:

    Hyperbolic(const Point& origin, const Vector& axis, double ri, double ro, double h_z);

    virtual double how_near( const Point& x ) const;
    virtual double distance( const Point& x ,const Vector& v,int) const;
    virtual Vector normal( const Point& x )const;

    // specify geometry

    const Vector& axis()const{return Surface::direction();}

    double radius(double z=0)const;
    // radius at position z from origin

    virtual const char *nameOf() const { return "Hyperbolic"; }
    virtual void printOn( std::ostream& os = std::cout ) const;


};
#endif

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