CGAL::Min_ellipse_2_traits_2<K>

Definition

The class Min_ellipse_2_traits_2<K> is a traits class for CGAL::Min_ellipse_2<Traits> using the two-dimensional CGAL kernel.

#include <CGAL/Min_ellipse_2_traits_2.h>

Requirements

The template parameter K is a model for Kernel.

Is Model for the Concept

MinEllipse2Traits

Types

Min_ellipse_2_traits_2<K>::Point
	typedef to K::Point_2.
Min_ellipse_2_traits_2<K>::Ellipse
	internal type.

The Ellipse type provides the following access methods not required by the concept MinEllipse2Traits.

bool	ellipse.is_circle ()
		tests whether the ellipse is a circle.
void	ellipse.double_coefficients ( double &r, double &s, double &t, double &u, double &v, double &w)
		gives a double approximation of the ellipse's conic equation. If K is a Cartesian kernel, the ellipse is the set of all points $$(x,y) satisfying $$rx2+sy2+txy+ux+vy+w=0. In the Homogeneous case, the ellipse is the set of points $$(hx,hy,hw) satisfying $$r(hx)2+s(hy)2+t(hx)(hy)+u(hx)(hw)+v(hy)(hw)+w(hw)2=0.

Creation

Min_ellipse_2_traits_2<K> traits;
	default constructor.
Min_ellipse_2_traits_2<K> traits ( Min_ellipse_2_traits_2<K>);
	copy constructor.

See Also

CGAL::Min_ellipse_2<Traits>
MinEllipse2Traits