From cf04e57d38a7461e96af2bc6f3d43976e0524dde Mon Sep 17 00:00:00 2001
From: Peter Hachenberger <hachenberger@mpi-inf.mpg.de>
Date: Sun, 5 Mar 2006 17:34:34 +0000
Subject: [PATCH] examples for the construction of a set of polygons and a set
 of polylines.

---
 .gitattributes                               |  2 ++
 Nef_3/examples/Nef_3/polygon_construction.C  | 28 ++++++++++++++++++++
 Nef_3/examples/Nef_3/polyline_construction.C | 28 ++++++++++++++++++++
 3 files changed, 58 insertions(+)
 create mode 100644 Nef_3/examples/Nef_3/polygon_construction.C
 create mode 100644 Nef_3/examples/Nef_3/polyline_construction.C

diff --git a/.gitattributes b/.gitattributes
index 67e7c3f1aeb..cd945dd9a30 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1112,6 +1112,8 @@ Nef_3/doc_tex/Nef_3_ref/fig/shalfloopB.pdf -text svneol=unset#unset
 Nef_3/doc_tex/Nef_3_ref/fig/snc.eps -text
 Nef_3/doc_tex/Nef_3_ref/fig/snc.gif -text svneol=unset#unset
 Nef_3/doc_tex/Nef_3_ref/fig/snc.pdf -text svneol=unset#unset
+Nef_3/examples/Nef_3/polygon_construction.C -text
+Nef_3/examples/Nef_3/polyline_construction.C -text
 Nef_3/test/Nef_3/data/2_cycles_on_halfsphere.off -text
 Nef_3/test/Nef_3/data/2_cycles_on_halfsphere2.off -text
 Nef_3/test/Nef_3/data/centered_cube.off -text
diff --git a/Nef_3/examples/Nef_3/polygon_construction.C b/Nef_3/examples/Nef_3/polygon_construction.C
new file mode 100644
index 00000000000..7318299f505
--- /dev/null
+++ b/Nef_3/examples/Nef_3/polygon_construction.C
@@ -0,0 +1,28 @@
+#include <CGAL/Gmpz.h>
+#include <CGAL/Homogeneous.h>
+#include <CGAL/Nef_polyhedron_3.h>
+#include <CGAL/IO/Nef_polyhedron_iostream_3.h>
+#include <CGAL/Nef_3/Polygon_constructor.h>
+
+typedef CGAL::Gmpz NT;
+typedef CGAL::Homogeneous<NT> Kernel;
+typedef Kernel::Point_3 Point_3;
+typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
+typedef Point_3* point_iterator;
+typedef std::pair<point_iterator,point_iterator> point_range;
+typedef std::list<point_range> polygon;
+typedef polygon::const_iterator polygon_iterator;
+typedef CGAL::Polygon_constructor<Nef_polyhedron, polygon_iterator> 
+Polygon_constructor;
+
+int main() {
+
+  Point_3 pl[4] = {Point_3(0,0,0), Point_3(1,0,0), 
+		   Point_3(1,1,0), Point_3(0,1,0)};
+  polygon poly;
+  poly.push_back(point_range(pl,pl+4));
+  Nef_polyhedron N;
+  Polygon_constructor pc(poly.begin(), poly.end());
+  N.delegate(pc,true);
+  std::cout << N;
+}
diff --git a/Nef_3/examples/Nef_3/polyline_construction.C b/Nef_3/examples/Nef_3/polyline_construction.C
new file mode 100644
index 00000000000..15a37fa989b
--- /dev/null
+++ b/Nef_3/examples/Nef_3/polyline_construction.C
@@ -0,0 +1,28 @@
+#include <CGAL/Gmpz.h>
+#include <CGAL/Homogeneous.h>
+#include <CGAL/Nef_polyhedron_3.h>
+#include <CGAL/IO/Nef_polyhedron_iostream_3.h>
+#include <CGAL/Nef_3/Polyline_constructor.h>
+
+typedef CGAL::Gmpz NT;
+typedef CGAL::Homogeneous<NT> Kernel;
+typedef Kernel::Point_3 Point_3;
+typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
+typedef Point_3* point_iterator;
+typedef std::pair<point_iterator,point_iterator> point_range;
+typedef std::list<point_range> polyline;
+typedef polyline::const_iterator polyline_iterator;
+typedef CGAL::Polyline_constructor<Nef_polyhedron, polyline_iterator> 
+Polyline_constructor;
+
+int main() {
+
+  Point_3 pl[4] = {Point_3(0,0,0), Point_3(1,0,0), 
+		   Point_3(1,1,0), Point_3(0,1,0)};
+  polyline poly;
+  poly.push_back(point_range(pl,pl+4));
+  Nef_polyhedron N;
+  Polyline_constructor pc(poly.begin(), poly.end());
+  N.delegate(pc,true);
+  std::cout << N;
+}