CGAL users discussion list

[Stephen Wong <>]

Hi guys,

Please find the conversation Peter and I have on the archives, the 
half-spaces question has been answered previously there!  Peter, you have 
sent these to me!

Max, I also use double coordinates with half-plane operations.  I have used 
Cartesian<Gmpq> (exact constructions, exact predicates).

Stephen

-----Original Message-----
From: Max 
[mailto:]
Sent: February-06-08 5:10 AM
To: 

Subject: Re: Re: Re: [cgal-discuss][Nef_polyhedron]A more 
complexbutstillsimplequestion

>I might have asked you this before, but why do you need halfspaces? If
>you only need halfspaces to perform intersections, then you don't need
>the extended kernels. I wrote an intersection routine that intersects a
>halfspace with a Nef polyhedron without constructing the halfspace
>explicitly.

where can I found the routine?
Thanks

B/Rgds
Max
>
>Peter

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