Kernel::ConstructCircle_2

Kernel::Circle_2	fo.operator() ( Kernel::Point_2 center, Kernel::FT squared_radius, Orientation orientation = COUNTERCLOCKWISE)
		introduces a variable of type Kernel::Circle_2. It is initialized to the circle with center center, squared radius squared_radius and orientation orientation. Precondition:  orientation $$ COLLINEAR, and further, squared_radius $$ 0.
Kernel::Circle_2	fo.operator() ( Kernel::Point_2 p, Kernel::Point_2 q, Kernel::Point_2 r)
		introduces a variable of type Kernel::Circle_2. It is initialized to the unique circle which passes through the points p, q and r. The orientation of the circle is the orientation of the point triple p, q, r. Precondition:  p, q, and r are not collinear.
Kernel::Circle_2	fo.operator() ( Kernel::Point_2 p, Kernel::Point_2 q, Orientation orientation = COUNTERCLOCKWISE)
		introduces a variable of type Kernel::Circle_2. It is initialized to the circle with diameter $$pq and orientation orientation. Precondition:  orientation $$ COLLINEAR.
Kernel::Circle_2	fo.operator() ( Kernel::Point_2 center, Orientation orientation = COUNTERCLOCKWISE)
		introduces a variable of type Kernel::Circle_2. It is initialized to the circle with center center, squared radius zero and orientation orientation. Precondition:  orientation $$ COLLINEAR. Postcondition:  .is_degenerate() = true.

Refines

See Also