MESH_IO
Reading and Writing MESH Files

MESH_IO is a FORTRAN90 library which can read or write 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.

Languages:

MESH_IO is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.

Related 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 FORTRAN90 program which reads a NETCDF file containing an ICE dataset and rewrites the information as a MESH file.

MESH, a data directory which contains examples of 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 FORTRAN90 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.

Source Code:

• mesh_io.f90, the source code.

Examples and Tests:

• mesh_io_test.f90, a sample calling program.
• mesh_io_test.txt, the output file.

List of Routines:

• CH_CAP capitalizes a single character.
• CH_EQI is a case insensitive comparison of two characters for equality.
• CH_TO_DIGIT returns the integer value of a base 10 digit.
• CYL248_DATA defines the data for a 3D tetrahedral mesh.
• CYL248_SIZE defines the sizes for a 3D tetrahedral mesh.
• GET_UNIT returns a free FORTRAN unit number.
• HEXAHEXA_2X2X2_DATA defines the data for a 3D hexahedral mesh.
• HEXAHEXA_2X2X2_SIZE defines the sizes for a 3D hexahedral mesh.
• I4MAT_COPY copies an I4MAT.
• I4VEC_COPY copies an I4VEC.
• MESH_DATA_PRINT prints mesh data.
• MESH_DATA_READ reads data from a MESH file.
• MESH_SIZE_PRINT prints mesh sizes.
• MESH_SIZE_READ reads sizes from a MESH file.
• MESH_WRITE writes sizes and data to a MESH file.
• R8MAT_COPY copies an R8MAT.
• R8VEC_COPY copies an R8VEC.
• S_BEGIN is TRUE if one string matches the beginning of the other.
• S_EQI is a case insensitive comparison of two strings for equality.
• S_TO_I4 reads an integer value from a string.
• S_TO_I4VEC reads an integer vector from a string.
• S_TO_R8 reads an R8 value from a string.
• S_TO_R8VEC reads an R8VEC from a string.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the FORTRAN90 source codes.