CGAL users discussion list

[Efi Fogel <>]

You must use an exact-predicate exact-construction kernel.

Are you?

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On Thu, Dec 19, 2013 at 2:50 PM, hasadi <> wrote:

Hi,

I try to use Arrangement part of the code. It seems to work properly,
however, for the the following example it cannot find correct arrangement.

here are the data which I add to the CGAL
example/arrangement_on_surface/face_extenstion.cpp

  Segment_2      s_1 (Point_2(1.5375, 0.83125), Point_2(1.575, 0.6625));
  Segment_2      s_2 (Point_2(1.5375, 0.83125), Point_2(1.2875, 0.70625));
  Segment_2      s_3 (Point_2(1.575, 0.6625), Point_2(1.2875, 0.70625));
  Segment_2      s_4 (Point_2(1.43526, 0.780128), Point_2(1.45,0.73));
  Segment_2      s_5 (Point_2(1.45,0.73), Point_2(1.47624, 0.677529));
  Segment_2      s_6 (Point_2(1.30709, 0.716047), Point_2(1.3011, 0.70418));

the fist three segment are the coordinate of a triangle, and the rest are
the intersections with triangle boundaries.
below image show the position of the segments.

it worth to mention that all of the intersection also found by CGAL library.

<http://cgal-discuss.949826.n4.nabble.com/file/n4658571/drawing.png>

any help would be appreciated.

Thanks,
Hosein



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