CGAL users discussion list

[Alex Tsui <>]

Hi,

I am using Exact_circular_kernel_2 and I would like to 
construct a line segment that exactly passes through two 
Circular_arc_point_2's. It looks like I have a choice between a 
CircularKernel::Segment_2 or a CircularKernel::Line_arc_2. However, 
Segment_2's coordinate type (FT) doesn't match the arc point's 
coordinate type (Root_of_2). It also seems that you can't construct a 
Line_arc_2 given just two arc points - you also need a Line_2 that 
contains both of the arc points. But like the Segment_2, Line_2 uses FT 
coordinates and I'm not sure how to construct one that contains both arc
 points. How should I do this?

Thanks,

--Alex