From 85aa5e638f4adc6992ce7411babb183957dcbf6c Mon Sep 17 00:00:00 2001
From: Abdelkrim Mebarki <Abdelkrim.Mebarki@sophia.inria.fr>
Date: Fri, 10 Mar 2006 14:04:42 +0000
Subject: [PATCH] bug fixed : eliminate duplicate seed points in the
 streamlines

---
 Stream_lines_2/include/CGAL/Stream_lines_2.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Stream_lines_2/include/CGAL/Stream_lines_2.h b/Stream_lines_2/include/CGAL/Stream_lines_2.h
index d2434e50223..4dfb2e868fc 100644
--- a/Stream_lines_2/include/CGAL/Stream_lines_2.h
+++ b/Stream_lines_2/include/CGAL/Stream_lines_2.h
@@ -496,6 +496,8 @@ void Stream_lines_2<VectorField_2, Integrator_2>::integrate_backward(const Vecto
   bool bEnd = false;
   FT dist;
   Point_2 new_point = Point_2 (stl.back().x(),stl.back().y());
+  // to not have duplicate points in the streamline
+  stl.pop_back();
   Vertex_handle m_Vertex_handle = insert_point(new_point, stl_vertices.back()->face(), dist,true);
   stl_vertices.push_back(m_Vertex_handle);
   stl.push_back(new_point);