Examples for insert between two different 2-cells

Generalized_map/examples/Generalized_map/gmap_3_insert.cpp

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+#include <CGAL/Generalized_map.h>
+#include <iostream>
+#include <cstdlib>
+#include <cassert>
+
+typedef CGAL::Generalized_map<3> GMap_3;
+typedef GMap_3::Dart_descriptor  Dart_descriptor;
+
+int main()
+{
+  GMap_3 gm;
+
+  // Create one combinatorial hexahedron
+  Dart_descriptor d1 = gm.make_combinatorial_hexahedron();
+
+  // Create one square face
+  Dart_descriptor d2=gm.make_combinatorial_polygon(4);
+
+  assert(gm.is_insertable_cell_1_between_two_cells_2(d1,d2));
+
+  // Insert the square face as a hole of the face of the hexahedron containing d1
+  gm.insert_cell_1_between_two_cells_2(d1, d2);
+
+  // Display the combinatorial map characteristics.
+  gm.display_characteristics(std::cout)<<", valid="
+                                       <<gm.is_valid()<<std::endl;
+
+  std::size_t nb=0;
+  for(Dart_descriptor dh=gm.darts().begin(); dh!=gm.darts().end(); ++dh)
+  { if (gm.is_free<2>(dh)) ++nb; }
+  std::cout<<"Number of 2-free darts: "<<nb<<std::endl;
+
+  return EXIT_SUCCESS;
+}