CGAL users discussion list

[陳 柏宏 <>]

hi,
thanks for replying. i am still not sure how to use it
to find the intersection of a circle and line though..
the closest constructor i could find is 
Circular_arc_2<CircularKernel> ca (     
CircularKernel::Circle_2 c,
CircularKernel::Circular_arc_point_2 p1,
CircularKernel::Circular_arc_point_2 p2);
Constructs 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.

and it does not seem that it automatically finds
intersection points. am i missing something here?

--- 

 說：

> Sorry, I made a mistake in my answer. It seems the
> intersection 
> Line_2/Circle_2 was forgotten in this functor...
> You can use the constructor
> CircularKernel::ConstructCircularArc_2 instead.
> 
> 
>  wrote:
> > yes, in the following chapter:
> > 
> > II   Geometry Kernels
> >        4   2D Circular Geometry Kernel
> > The intersection computed by functor
> CircularKernel::Intersect_2 will 
> > give you a CircularKernel::Circular_arc_point_2
> and you can access its 
> > coordinates as CGAL::Root_of_2 numbers.
> > 
> >     Monique Teillaud
> > 
> > 陳 柏宏 wrote:
> > 
> >> Is there a function for finding the intersections
> >> between one circle and one line?
> >>
> >>
> >>       
> >>
>
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