CGAL users discussion list

[nsoonhui <>]

Hello, I look through my CGAL installation directory, and I don't find"Arr_landmarks_pl_impl.h" file.

May I know where it is located? And whether is it an example file, or core source file?

On Wed, Feb 9, 2011 at 7:12 PM, Efraim Fogel [via cgal-discuss] <[hidden email]> 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.

--
  ____  _        ____             _
 /_____/_) o    /__________  __  //
(____ (   (    (    (_/ (_/-(-'_(/
                        _/

--
You are currently subscribed to cgal-discuss.
To unsubscribe or access the archives, go to
https://lists-sop.inria.fr/wws/info/cgal-discuss

---

If you reply to this email, your message will be added to the discussion below:

http://cgal-discuss.949826.n4.nabble.com/Arbitrary-Ray-Shooting-on-Arrangement-tp3296800p3297052.html

To unsubscribe from Arbitrary Ray Shooting on Arrangement, click here.

---

View this message in context: Re: Arbitrary Ray Shooting on Arrangement
Sent from the cgal-discuss mailing list archive at Nabble.com.