Kernel::ConstructPoint_2 Concept Reference

Definition

Refines

AdaptableUnaryFunction

See also

CGAL::Point_2<Kernel>

Operations
A model of this concept must provide:
Kernel::Point_2	operator() (const CGAL::Origin &CGAL::ORIGIN)
	introduces a variable with Cartesian coordinates \( (0,0)\).
Kernel::Point_2	operator() (const Kernel::Point_2 &p)
	returns p.
Kernel::Point_2	operator() (const Kernel::Weighted_point_2 &wp)
	extracts the bare point from the weighted point.

Member Function Documentation

operator()()

Kernel::Point_2 Kernel::ConstructPoint_2::operator()

(

const Kernel::Point_2 &

p

)

returns p.

Note

It is advised to return a const reference to p to avoid useless copies.

This peculiar requirement is necessary because some CGAL structures such as triangulations internally manipulate points whose type might be Point_2 or Weighted_point_2.