MSH >> MSH - MeSHing software package for octave 
Structured mesh creation
  msh2m_structured_mesh
  msh3m_structured_mesh
  msh2m_mesh_along_spline
Unstructured mesh creation
  msh2m_gmsh
  msh3m_gmsh
Mesh manipulation
  msh2m_join_structured_mesh
  msh3m_join_structured_mesh
Mesh properties
  msh2m_geometrical_properties
  msh3m_geometrical_properties
  msh2m_topological_properties
  msh2m_nodes_on_sides
  msh3m_nodes_on_faces
Mesh adaptation
  msh2m_equalize_mesh
  msh2m_displacement_smoothing
  msh2m_jiggle_mesh
Mesh extraction
  msh3e_surface_mesh
  msh2m_submesh
  msh3m_submesh
Mesh plotting
  msh2p_mesh
Mesh export to gmsh
  msh2m_gmsh_write
  msh3m_gmsh_write