MESH
A File Format for Finite Element Meshes

MESH is a data directory which contains examples of MESH files, which define a finite element mesh.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

FEM_TO_MESH, a FORTRAN90 program which reads a pair of FEM files defining node coordinates and elements, and creates a corresponding MESH file.

ICE_TO_MESH, a C program which reads a NETCDF file containing an ICE dataset and rewrites the information as a MESH file.

MESH_IO, a MATLAB library which can read or write MESH files, which can be used to define the geometry of a finite element mesh in 2D or 3D, using triangles, quadrilaterals, tetrahedrons or hexahedrons.

MESH_TO_ICE, a MATLAB program which reads the ICE dataset information from a MESH files and rewrites it to a NETCDF file.

Reference:

1. Pascal Frey,
   MEDIT: An interactive mesh visualization software,
   Technical Report RT-0253,
   Institut National de Recherche en Informatique et en Automatique,
   03 December 2001.

Sample Files:

CUBE86 subdivides the unit cube, using 39 vertices to form 86 tetrahedra. There are 72 boundary triangles.

• cube86.mesh, the mesh file.
• cube86.png, a PNG snapshot.

CYL248 is a cylinder defined by 92 vertices. The volume is subdivided into 248 tetrahedra which have 154 boundary triangles.

• cyl248.mesh, the mesh file.
• cyl248.png, a PNG snapshot.

ELL is a 2D L-shaped region, with a grid of 65 nodes and 96 elements of order 3 triangles.

• ell.mesh, the mesh file.
• ell.png, a PNG snapshot.

GREENLAND is a triangulation of Greenland, using 66,425 nodes and 131,189 elements of order 3 triangles.

• greenland.mesh, the mesh file.
• greenland.bb, the ice thickness at each node.
• greenland_thickness.png, a color contour image of the ice thickness.

GREENLAND_OLD is a triangulation of Greenland, using 33,343 nodes and 64,125 elements of order 3 triangles.

• greenland_old.mesh, the mesh file.
• greenland_old.png, an image of a portion of the triangulation, after "zooming in" twice.

HEXAHEXA_2x2x2 subdivides the unit 3D cube into a 2x2x2 mesh of 8 subcubes or "hexahedra", using 27 vertices, and 24 boundary quadrilaterals.

• hexahexa_2x2x2.mesh, the mesh file.
• hexahexa_2x2x2.png, a PNG snapshot.

P01 is 3D data for a rectangular channel of dimensions 3x1x1 physical units, using 584 nodes and 2568 tetrahedral elements.

• p01.mesh, the mesh file.
• p01.png, an image of the mesh.

PART is a large 3D object including 28,694 vertices, 14,890 triangles, 150,779 tetrahedrons, 50 corners, 1905 edges and 1905 ridges.

• part.mesh, the mesh file.
• part.png, a PNG snapshot.

You can go up one level to the DATA directory.