Periodic_3Offset_3 Concept Reference

Definition

The concept Periodic_3Offset_3 describes a three-dimensional integer vector with some specialized access functions and operations.

Has Models:

CGAL::Periodic_3_offset_3

See Also

Periodic_3DelaunayTriangulationTraits_3

Creation
	Periodic_3Offset_3 ()
	Default constructor.
	Periodic_3Offset_3 (int x, int y, int z)
	Constructs the offset (x,y,z).

Operations
Periodic_3Offset_3	operator+ (const Periodic_3Offset_3 &other) const
	Return the vector sum of o and other.
Periodic_3Offset_3	operator- (const Periodic_3Offset_3 &other) const
	Return the vector difference of o and other.
Periodic_3Offset_3	operator- () const
	Return the negative vector of o.
void	operator+= (const Periodic_3Offset_3 &other) const
	Add other to o using vector addition.
void	operator-= (const Periodic_3Offset_3 &other) const
	Subtract other from o using vector subtraction.
bool	operator== (const Periodic_3Offset_3 &other) const
	Return true if other and o represent the same vector.
bool	operator!= (const Periodic_3Offset_3 &other) const
	Return true if other and o do not represent the same vector.
bool	operator< (const Periodic_3Offset_3 &other) const
	Compare o and other lexicographically.

Access Functions
int	operator[] (int i)
	Return the \( i\)-th entry of o.
int	x () const
	Return the \( x\)-entry of o.
int	y () const
	Return the \( y\)-entry of o.
int	z ()
	Return the \( z\)-entry of o.
bool	is_null () const
	Returns true if o is equal to (0,0,0).
istream &	operator>> (istream &is, Periodic_3_offset_3 &off)
	Inputs an offset from is.
ostream &	operator<< (ostream &os, Periodic_3_offset_3 &off) const
	Outputs an offset from os.