TEC_TO_FEM
Convert a TEC Graphics File to an FEM Model

TEC_TO_FEM is a MATLAB program which reads a TEC graphics file containing a finite element model, and writes the information to three files in the FEM format.

The FEM files created will include:

• Node coordinates, stored in a "node coordinate file";
• Elements defined by a sequence of node indices, store in an "element file";
• Node data, such as finite element coefficients for pressure, velocity, and so on, stored in a "node data file";

The TECPLOT home page contains a description of the TECPLOT program.

Related Data and Programs:

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

FEM_50 is a MATLAB finite element program in just 50 lines of code.

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

FEM_IO is a set of MATLAB routines for reading or writing an FEM model.

FEM_TO_TEC is a MATLAB program which reads the three files defining an FEM model and writes an equivalent TEC file.

FEM2D_POISSON is a program for solving Poisson's equation on a square, using the finite element method.

FEMPACK is a library of routines for finite element calculations.

FREE_FEM_POISSON is a program for solving Poisson's equation on a triangulated region, using the finite element method.

FREE_FEM_STOKES is a program for solving the Stokes equations on a triangulated region, using the finite element method.

HOT_PIPE is a sample problem that can be run with FEM_50_HEAT.

HOT_POINT is a sample problem that can be run with FEM_50_HEAT.

TABLE is a file format which is used for the FEM files.

TABLE_IO is a library of routines for reading and writing TABLE files.

TEC is a data directory which contains a description and examples of the TEC graphics files used by TECPLOT

TEC_IO is a set of MATLAB routines for reading or writing a TEC file containing a finite element model.

TEC_TO_FEM is also available in a FORTRAN90 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 an executable FORTRAN90 program which reads a (finite element) TEC file and writes an equivalent AVS UCD file.

Source Code:

• ch_cap.m capitalizes a character.
• ch_eqi.m is TRUE if two characters are equal, ignoring case.
• dtable_data_write.m writes a table to a double precision table file.
• dtable_header_write.m writes the header for a double precision table file.
• dtable_write.m writes a double precision table file.
• fem_write.m writes the node coordinate, element and node data files defining a finite element model.
• itable_data_write.m writes a table to an integer table file.
• itable_header_write.m writes the header for an integer table file.
• itable_write.m writes an integer table file.
• r8_epsilon.m returns the R8 machine precision.
• s_adjustl.m shifts a string to the left, removing initial blanks.
• s_begin.m is TRUE if two strings match up to the end of the shorter one, ignoring spaces and capitalization.
• s_behead_substring.m beheads a substring from the beginning of a string, if it occurs there.
• s_len_trim.m returns the length of a string to the last nonblank.
• s_replace_ch.m replaces all occurrences of one character by another character.
• s_to_i4.m converts a string to an I4.
• s_word_count.m counts the number of words in a string.
• s_word_extract.m extracts the first word from a string.
• tec_read.m reads the information from a TEC file.
• tec_to_fem.m reads the information from a TEC file and writes it to a set of FEM files.
• timestamp.m prints the current YMDHMS date as a timestamp.
• timestring.m writes the current YMDHMS date as a string.

Examples and Tests:

ELL is an example of a 2D finite element model in which a scalar value is stored. This data was computed by the FREE_FEM_POISSON program.

• ell.tec, the TEC file;
• ell_node_coord.txt, the node coordinate file.
• ell_element.txt, the element file.
• ell_node_data.txt, the node data file.
• ell.out, the printed output from the program;

TINY is a "tiny" example of a 2D finite element model in which a vector value is stored.

• tiny.tec, the TEC file;
• tiny_node_coord.txt, the node coordinate file.
• tiny_element.txt, the element file.
• tiny_node_data.txt, the node data file.
• tiny.out, the printed output from the program;

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