RayS2< FT > Class Template Reference

#include <RayS2.h>

Public Member Functions
	RayS2 ()
	RayS2 (const PointS2< FT > &sp, const PointS2< FT > &secondp)
	RayS2 (const PointS2< FT > &sp, const DirectionS2< FT > &d)
bool	operator== (const RayS2< FT > &r) const
bool	operator!= (const RayS2< FT > &r) const
const PointS2< FT > &	start () const
const PointS2< FT > &	source () const
PointS2< FT >	point (int i) const
PointS2< FT >	second_point () const
DirectionS2< FT >	direction () const
LineS2< FT >	supporting_line () const
RayS2< FT >	opposite () const
RayS2< FT >	transform (const Aff_transformationS2< FT > &t) const
bool	is_horizontal () const
bool	is_vertical () const
bool	is_degenerate () const
bool	has_on (const PointS2< FT > &p) const
bool	collinear_has_on (const PointS2< FT > &p) const

Public Attributes
PointS2< FT >	s
PointS2< FT >	t

Detailed Description

template<class FT>
class RayS2< FT >

Definition at line 60 of file RayS2.h.

Constructor & Destructor Documentation

RayS2 ( )

inline

Definition at line 63 of file RayS2.h.

{};

RayS2 ( const PointS2< FT > &  sp, const PointS2< FT > &  secondp  )

inline

Definition at line 64 of file RayS2.h.

                                                    : s(sp), t(secondp) {};

CGAL_KERNEL_CTOR_INLINE RayS2	(	const PointS2< FT > &	sp,
		const DirectionS2< FT > &	d
	)

Definition at line 99 of file RayS2.h.

References s, and DirectionS2< FT >::vector().

{ s = sp; t = sp + d.vector(); }

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Member Function Documentation

CGAL_KERNEL_MEDIUM_INLINE bool collinear_has_on

(

const PointS2< FT > &

p

)

const

Definition at line 201 of file RayS2.h.

References compare_x(), compare_y(), LARGER, and SMALLER.

{
    switch(compare_x(source(), second_point())){
    case SMALLER:
        return compare_x(source(), p) != LARGER;
    case LARGER:
        return compare_x(p, source()) != LARGER;
    default:
        switch(compare_y(source(), second_point())){
        case SMALLER:
            return compare_y(source(), p) != LARGER;
        case LARGER:
            return compare_y(p, source()) != LARGER;
        default:
            return true; // p == source()
        }
    }
}

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DirectionS2< FT > direction ( ) const

inline

Definition at line 149 of file RayS2.h.

Referenced by RayS2< FT >::operator==().

{ return DirectionS2<FT>(  second_point() - source() ); }

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CGAL_KERNEL_INLINE bool has_on

(

const PointS2< FT > &

p

)

const

Definition at line 191 of file RayS2.h.

References collinear().

{
  return ( p == source()
           || ( collinear(source(), p, second_point())
          && ( DirectionS2<FT>(p - source()) == direction() )));
}

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CGAL_KERNEL_INLINE bool is_degenerate

(

)

const

Definition at line 185 of file RayS2.h.

{ return (source() == second_point()); }

CGAL_KERNEL_INLINE bool is_horizontal

(

)

const

Definition at line 173 of file RayS2.h.

References y.

{ return (source().y() ==  second_point().y()); }

CGAL_KERNEL_INLINE bool is_vertical

(

)

const

Definition at line 179 of file RayS2.h.

References x.

{ return  (source().x() == second_point().x()); }

bool operator!=

(

const RayS2< FT > &

r

)

const

Definition at line 110 of file RayS2.h.

{ return !(*this == r); }

CGAL_KERNEL_INLINE bool operator==

(

const RayS2< FT > &

r

)

const

Definition at line 105 of file RayS2.h.

References RayS2< FT >::direction(), and RayS2< FT >::source().

{ return ((source() == r.source()) && (direction() == r.direction()) ); }

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RayS2< FT > opposite ( ) const

inline

Definition at line 159 of file RayS2.h.

{ return RayS2<FT>( source(), - direction() ); }

CGAL_KERNEL_INLINE PointS2< FT > point

(

int

i

)

const

Definition at line 134 of file RayS2.h.

References CGAL_kernel_precondition, and s.

{
  CGAL_kernel_precondition( i >= 0 );
  if (i == 0)
    return s;

  if (i == 1)
    return t;

  return source() + FT(i) * (second_point() - source());
}

PointS2< FT > second_point ( ) const

inline

Definition at line 128 of file RayS2.h.

Referenced by LineS2< FT >::LineS2().

{ return t; }

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const PointS2< FT > & source ( ) const

inline

Definition at line 122 of file RayS2.h.

References s.

Referenced by RayS2< FT >::operator==().

{ return s; }

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const PointS2< FT > & start ( ) const

inline

Definition at line 116 of file RayS2.h.

References s.

Referenced by LineS2< FT >::LineS2().

{ return s; }

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LineS2< FT > supporting_line ( ) const

inline

Definition at line 154 of file RayS2.h.

{ return LineS2<FT>(*this); }

CGAL_KERNEL_INLINE RayS2< FT > transform

(

const Aff_transformationS2< FT > &

t

)

const

Definition at line 166 of file RayS2.h.

References Aff_transformationS2< FT >::transform().

{ return RayS2<FT>(t.transform(source()), t.transform(second_point())); }

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Member Data Documentation

PointS2<FT> s

Definition at line 92 of file RayS2.h.

PointS2<FT> t

Definition at line 93 of file RayS2.h.

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The documentation for this class was generated from the following file:

• RayS2.h