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, that is oriented counterclockwise, whose source is p1 and whose target is p2.
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 that is oriented counterclockwise, whose supporting circle is c, and whose source endpoint 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.
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.