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- From: nsoonhui <>
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- Subject: [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement
- Date: Thu, 10 Feb 2011 07:56:47 -0800 (PST)
Ah, I've found it, thanks.
But upon reading the Arr_landmarks_pl_impl.h makes me even more confused: I don't see any examples where I can shoot a ray and "walk along it and retrieve all the vertices, edges and/or faces".
Is there any such examples readily available, that I'm not aware of?
On Thu, Feb 10, 2011 at 11:36 PM, Sebastien Loriot (GeometryFactory) [via cgal-discuss] <[hidden email]> wrote:
nsoonhui wrote:Are you using CGAL-3.7?
> Hello, I look through my CGAL installation directory, and I don't
> find"Arr_landmarks_pl_impl.h" file.
>
this include file is located here:
CGAL-3.7/include/CGAL/Arr_point_location/Arr_landmarks_pl_impl.h
> May I know where it is located? And whether is it an example file, or
> core source file?
>> <http://cgal-discuss.949826.n4.nabble.com/Arbitrary-Ray-Shooting-on-Arrangement-tp3296800p3297052.html?by-user=t>> On Wed, Feb 9, 2011 at 7:12 PM, Efraim Fogel [via cgal-discuss] <[hidden
> email] </user/SendEmail.jtp?type=node&node=3299358&i=0>> wrote:
>
> nsoonhui wrote:
> > For 2D Arrangement, one is able to do
> >
> http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Arrangement_on_surface_2/Chapter_main.html#Subsection_30.3.2
> > vertical ray-shooting query . But unfortunately, for a lot of
> application,
> > doing vertical ray shooting is a bit too limiting; is there
> anyway I can do
> > arbitrary direction ray shooting ( i.e, I can shoot the ray in
> any direction
> > given any query point, and find whether the ray intersects a
> vertex, an edge
> > or a face, not just vertically)?
> >
> You can construct a ray (or a long segment) in the given direction
> emanating from the query point. Then, "walk" along the ray, in a
> similar
> way to the walk is applied by the Landmark point location; see
> Arr_point_location/Arr_landmarks_pl_impl.h.
>
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Sent from the cgal-discuss mailing list archive at Nabble.com.
- [cgal-discuss] Arbitrary Ray Shooting on Arrangement, nsoonhui, 02/09/2011
- Re: [cgal-discuss] Arbitrary Ray Shooting on Arrangement, Efraim Fogel, 02/09/2011
- [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, nsoonhui, 02/10/2011
- Re: [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, Sebastien Loriot (GeometryFactory), 02/10/2011
- [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, nsoonhui, 02/10/2011
- Re: [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, Efraim Fogel, 02/14/2011
- [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, nsoonhui, 02/10/2011
- Re: [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, Sebastien Loriot (GeometryFactory), 02/10/2011
- [cgal-discuss] Re: Arbitrary Ray Shooting on Arrangement, nsoonhui, 02/10/2011
- Re: [cgal-discuss] Arbitrary Ray Shooting on Arrangement, Efraim Fogel, 02/09/2011
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