TEC_TO_FEM
Convert TECPLOT Finite Element Files to FEM Format

TEC_TO_FEM is a FORTRAN90 program which reads a TECPLOT file defining a finite element dataset, and writes a corresponding set of FEM files.

Usage:

tec_to_fem file.tec

reads the TECPLOT file file.tec and creates the FEM files file.node_coord.txt, file.element.txt and file.node_data.txt.

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 is a data directory which contains a description of the data files that can be used to describe a finite element model.

FEM_50 is a MATLAB program which implments the finite element method in just 50 lines of code.

FEM_50_HEAT is a MATLAB program which is a modified version of FEM_50 suitable for solving the heat equation.

FEM_IO is a FORTRAN90 library which may be used to read or write a set of FEM files.

FEM_TO_TEC is a FORTRAN90 program which can convert an FEM model into a TEC graphics file.

FEM2D_POISSON is a FORTRAN90 program which solves Poisson's equation on a square, using the finite element method.

FEMPACK is a FORTRAN90 library which is useful for finite element calculations.

FREE_FEM_POISSON is a FORTRAN90 program which solves Poisson's equation on a triangulated region, using the finite element method.

FREE_FEM_STOKES is a FORTRAN90 program which solves the Stokes equations on a triangulated region, using the finite element method.

HOT_PIPE is a MATLAB program which can be run with FEM_50_HEAT.

HOT_POINT is a MATLAB program which can be run with FEM_50_HEAT.

PLTMG_SINGLE is a FORTRAN77 library which solves elliptic partial differential equations using the finite element method with piecewise linear triangles and the multigrid approach.

TABLE is a format which is used for the input and output files used by FEM_IO.

TABLE_IO is a FORTRAN90 library which reads and writes TABLE files.

TEC is a data directory which contains a description of TECPLOT files.

TEC_IO is a FORTRAN90 library which may be used to read or write a TECPLOT file definite a finite element dataset.

TEC_TO_FEM is available in a FORTRAN90 version and a MATLAB version.

TEC_TO_OBJ is a FORTRAN90 program which can read a TECPLOT file describing a surface in 3D composed of triangles or quadrilaterals, and write an OBJ file.

TEC_TO_UCD is a FORTRAN90 program which can read a TECPLOT file defining a finite element dataset, and write a corresponding AVS UCD (Unstructured Cell Data) file.

TEC_WRITE is a FORTRAN90 library which can write TEC files.

Reference:

1. Hans Rudolf Schwarz,
   Methode der Finiten Elemente,
   Teubner Studienbuecher, 1980.
2. Gilbert Strang, George Fix,
   An Analysis of the Finite Element Method,
   Prentice Hall, 1973.
3. Tecplot, Inc,
   TECPLOT Reference Manual,
   Version 10, Release 4,
   Tecplot, Inc, 2005.
4. Tecplot, Inc,
   TECPLOT User's Manual,
   Version 10,
   Tecplot, Inc, 2005.
5. Olgierd Zienkiewicz,
   The Finite Element Method,
   McGraw Hill, Third Edition, 1977.
6. Daniel Zwillinger, editor,
   Standard Mathematical Tables and Formulae,
   30th Edition,
   CRC Press, 1996.

Source Code:

• tec_to_fem.f90, the source code.
• tec_to_fem.csh, commands to compile the source code.

Examples and Tests:

TINY is a "tiny" dataset.

• tiny.tec, a TECPLOT file defining the dataset.
• tiny.node_coord.txt, the FEM file containing the node coordinates.
• tiny.element.txt, the FEM file containing the elements.
• tiny.node_data.txt, the FEM file containing the node data.

List of Routines:

• MAIN is the main program for TEC_TO_FEM.
• 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.
• DTABLE_DATA_WRITE writes data to a double precision table file.
• DTABLE_HEADER_WRITE writes the header to a double precision table file.
• FEM_WRITE writes data files associated with a finite element solution.
• FILE_NAME_EXT_GET determines the "extension" of a file name.
• FILE_NAME_EXT_SWAP replaces the current "extension" of a file name.
• GET_UNIT returns a free FORTRAN unit number.
• ITABLE_DATA_WRITE writes data to an integer table file.
• ITABLE_HEADER_WRITE writes the header to an integer table file.
• S_BEGIN is TRUE if one string matches the beginning of the other.
• S_BEHEAD_SUBSTRING "beheads" a string, removing a given substring.
• S_BLANK_DELETE removes blanks from a string, left justifying the remainder.
• S_EQI is a case insensitive comparison of two strings for equality.
• S_INDEX_LAST finds the LAST occurrence of a given substring.
• S_REPLACE_CH replaces all occurrences of one character by another.
• S_TO_I4 reads an I4 from a string.
• S_TO_R8 reads an R8 from a string.
• S_WORD_COUNT counts the number of "words" in a string.
• S_WORD_EXTRACT extracts the next word from a string.
• TEC_DATA_READ reads the data from a TEC file.
• TEC_HEADER_PRINT prints the header to a TEC file.
• TEC_HEADER_READ reads the header from a TEC file.
• TEC_TO_FEM_HANDLE reads data from a TECPLOT file and writes FEM files.
• TEC_ZONE_LINE_PARSE parses the "ZONE" line of a TEC file.
• TIMESTAMP prints the current YMDHMS date as a time stamp.
• TIMESTRING writes the current YMDHMS date into a string.

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