ape_cell_base_3.h&gt;</code><br />
<code>#include &lt;CGAL/Alpha_shape_vertex_base_3.h&gt;</code><br />
<code>#include &lt;CGAL/Alpha_shapes_3/internal/Lazy_alpha_nt_3.h&gt;</code><br />
<code>#include &lt;CGAL/Compact_container.h&gt;</code><br />
<code>#include &lt;CGAL/Delaunay_triangulation_3.h&gt;</code><br />
<code>#include &lt;CGAL/Exact_predicates_inexact_constructions_kernel.h&gt;</code><br />
<code>#include &lt;CGAL/IO/output_to_vtu.h&gt;</code><br />
<code>#include &lt;CGAL/Mesh_complex_3_in_trian