CircularKernel::ConstructCircularArc_2

A model fo of this type must provide:

CircularKernel::Circular_arc_2 fo ( CircularKernel::Circle_2 c )
Constructs an arc from a full circle.

CircularKernel::Circular_arc_2
fo ( CircularKernel::Circle_2 c ,
CircularKernel::Circular_arc_point_2 p1 ,
CircularKernel::Circular_arc_point_2 p2 )
Construct the circular arc supported by c, whose source is p1 and whose target is p2 when traversing the circle in counterclockwise direction.
Precondition: p1 and p2 lie on c.

CircularKernel::Circular_arc_2
fo ( CircularKernel::Circle_2 c ,
CircularKernel::Circle_2 c1 ,
bool b1 ,
CircularKernel::Circle_2 c2 ,
bool b2 )
Constructs the unique circular arc whose supporting circle is c, and whose source is the intersection of c and c1 with index b1, and whose target is the intersection of c and c2 of index b2, where intersections are ordered lexicographically, and when traversing the circle in counterclockwise direction.
Precondition: c intersects both c1 and c2, and the arc defined by the intersections has non-zero length.

CircularKernel::Circular_arc_2
fo ( CircularKernel::Circle_2 c ,
CircularKernel::Line_2 l1 ,
bool b1 ,
CircularKernel::Line_2 l2 ,
bool b2 )
Same, for intersections defined by lines instead of circles.

CircularKernel::Circular_arc_2 fo ( CircularKernel::Point_2 p , CircularKernel::Point_2 q , CircularKernel::Point_2 r )
Constructs an arc that is supported by the circle of type CircularKernel::Circle_2 passing through the points p, q and r. The source and target are respectively p and r, when traversing the supporting circle in the counterclockwise direction. Note that, depending on the orientation of the point triple (p,q,r), q may not lie on the arc.
Precondition: p, q, and r are not collinear.