\image html image126.gif "Example of a hexahedral 3D mesh"
</ul>
-\Note that BLSURF and GHS3D are commercial meshers and require a
+Some of 3D meshing algorithms also can generate 3D meshes from 2D meshes, working without
+geometrical objects. Such algorithms are
+<ul>
+<li>Hexahedron meshing algorithm (i,j,k),</li>
+<li>Tetrahedron (Netgen and GHS3D) meshing algorithms,</li>
+<li>Hexotic.</li>
+</ul>
+
+
+\note BLSURF and GHS3D are commercial meshers and require a
license to be used within the Mesh module.
There is also a number of more specific algorithms:
<li>\subpage radial_prism_algo_page "for meshing geometrical objects with cavities"</li>
<li>\subpage segments_around_vertex_algo_page "for defining the local size of elements around a certain node"</li>
<li>\subpage prism_3d_algo_page "for meshing prismatic shapes"</li>
-<li>\subpage radial_quadrangle_1D2D_algo_page "for meshing special 2d
-faces (circles and part of circles)"</li>
+<li>\subpage radial_quadrangle_1D2D_algo_page "for meshing special 2d faces (circles and part of circles)"</li>
</ul>
\ref constructing_meshes_page "Constructing meshes" page describes in