tecplot Package

tecplot Module

Inheritance diagram of pyNastran.converters.tecplot.tecplot
models from:

http://people.sc.fsu.edu/~jburkardt/data/tec/tec.html

class pyNastran.converters.tecplot.tecplot.Base[source]

Bases: object

object_attributes(mode: str = 'public', keys_to_skip: Optional[List[str]] = None, filter_properties: bool = False) → List[str][source]

List the names of attributes of a class as strings. Returns public attributes as default.

Parameters
objinstance

the object for checking

modestr

defines what kind of attributes will be listed * ‘public’ - names that do not begin with underscore * ‘private’ - names that begin with single underscore * ‘both’ - private and public * ‘all’ - all attributes that are defined for the object

keys_to_skipList[str]; default=None -> []

names to not consider to avoid deprecation warnings

filter_properties: bool: default=False

filters the @property objects

Returns
attribute_namesList[str]

sorted list of the names of attributes of a given type or None if the mode is wrong

object_methods(mode: str = 'public', keys_to_skip: Optional[List[str]] = None) → List[str][source]

List the names of methods of a class as strings. Returns public methods as default.

Parameters
objinstance

the object for checking

modestr

defines what kind of methods will be listed * “public” - names that do not begin with underscore * “private” - names that begin with single underscore * “both” - private and public * “all” - all methods that are defined for the object

keys_to_skipList[str]; default=None -> []

names to not consider to avoid deprecation warnings

Returns
methodList[str]

sorted list of the names of methods of a given type or None if the mode is wrong

object_stats(mode: str = 'public', keys_to_skip: Optional[List[str]] = None, filter_properties: bool = False) → str[source]

Prints out an easy to read summary of the object

class pyNastran.converters.tecplot.tecplot.Tecplot(log=None, debug: bool = False)[source]

Bases: pyNastran.converters.tecplot.tecplot.Base

Parses a hexa binary/ASCII Tecplot 360 file. Writes an ASCII Tecplot 10 file.

Supports:
  • title

  • single zone only?

  • unstructured: - nodal results - single element type; ZONETYPE = [FETRIANGLE, FEQUADRILATERAL, FETETRAHEDRON, FEBRICK] - DATAPACKING = [POINT, ELEMENT] writing - 2D/3D - full support for writing

  • structured: - nodal results - F=POINT - 2d/3d (POINT, I/J/K) - full support for writing - no reshaping of xyz to make slicing easier!

Doesn’t support:
  • text

  • geometry

  • transient writing

  • centroidal results

  • non-sequential node ids

  • data lists (100*0.0)

extract_y_slice(y0, tol=0.01, slice_filename=None)[source]

doesn’t work…

property nzones

gets the number of zones

read_table(tecplot_file, unused_iblock, headers_dict, line)[source]

reads a space-separated tabular data block

read_tecplot(tecplot_filename: str, filetype: str = 'guess')[source]

Reads an ASCII/binary Tecplot file.

The binary file reader must have ONLY CHEXAs and be Tecplot 360 with rho, u, v, w, and p. The ASCII file reader has only been tested with Tecplot 10, but will probably work on Tecplot360. It should work with any set of variables.

read_tecplot_ascii(tecplot_filename, nnodes=None, nelements=None)[source]

Reads a Tecplot ASCII file.

Supports:
  • CTRIA3

  • CQUAD4

  • CTETRA

  • CHEXA

Note

assumes single typed results

Warning

BLOCK option doesn’t work if line length isn’t the same…

read_tecplot_binary(tecplot_filename, nnodes=None, nelements=None)[source]

The binary file reader must have ONLY CHEXAs and be Tecplot 360 with: rho, u, v, w, and p.

show(n, types='ifs', endian=None)[source]
show_data(data, types='ifs', endian=None)[source]

Shows a data block as various types

Parameters
databytes

the binary string bytes

typesstr; default=’ifs’

i - int f - float s - string d - double (float64; 8 bytes) q - long long (int64; 8 bytes)

l - long (int; 4 bytes) I - unsigned int (int; 4 bytes) L - unsigned long (int; 4 bytes) Q - unsigned long long (int; 8 bytes)

endianstr; default=None -> auto determined somewhere else in the code

the big/little endian {>, <}

.. warning:: ‘s’ is apparently not Python 3 friendly
show_ndata(n, types='ifs')[source]
slice_x(xslice)[source]

TODO: doesn’t remove unused nodes/renumber elements

slice_xyz(xslice, yslice, zslice)[source]

TODO: doesn’t remove unused nodes/renumber elements

slice_y(yslice)[source]

TODO: doesn’t remove unused nodes/renumber elements

slice_z(zslice)[source]

TODO: doesn’t remove unused nodes/renumber elements

write_tecplot(tecplot_filename, res_types=None, adjust_nids=True)[source]

Only handles single type writing

Parameters
tecplot_filenamestr

the path to the output file

res_typesstr; List[str, str, …]; default=None -> all

the results that will be written (must be consistent with self.variables)

adjust_nidsbool; default=True

element_ids are 0-based in binary and must be switched to 1-based in ASCII

pyNastran.converters.tecplot.tecplot.get_next_line(lines, iline)[source]

Read the next line from the file. Handles comments.

pyNastran.converters.tecplot.tecplot.get_next_nsline(lines, iline, sline, nvars)[source]
pyNastran.converters.tecplot.tecplot.get_next_sline(lines, iline)[source]

Read the next split line from the file. Handles comments.

pyNastran.converters.tecplot.tecplot.main()[source]
pyNastran.converters.tecplot.tecplot.main2()[source]

tests slicing

pyNastran.converters.tecplot.tecplot.read_block(lines, iline, xyz, results, zone_type, line, sline, nnodes, nvars, log)[source]

BLOCK format is similar to PLOT3D in that you read all the X values before the Ys, Zs, and results. The alternative format is POINT, which reads them on a per node basis.

pyNastran.converters.tecplot.tecplot.read_point(lines, iline, xyz, results, zone_type, line, sline, nnodes, nvars, log)[source]

a POINT grid is a structured grid

pyNastran.converters.tecplot.tecplot.read_tecplot(tecplot_filename: str, use_cols=None, dtype=None, filetype='guess', log=None, debug=False)[source]

loads a tecplot file

pyNastran.converters.tecplot.tecplot.read_unstructured_elements(lines, iline, sline, elements, nelements)[source]
pyNastran.converters.tecplot.tecplot.read_zone_block(lines, iline, xyz, results, nresults, zone_type, sline, nnodes, log)[source]

a zone can be structured or unstructred

pyNastran.converters.tecplot.tecplot.split_headers(header_in)[source]
pyNastran.converters.tecplot.tecplot.split_line(line)[source]

splits a comma or space separated line

tecplot_to_cart3d Module

Defines:
  • tecplot_to_cart3d_filename(tecplot_filename, cart3d_filename, debug=True)

  • tecplot_to_cart3d(tecplot_filename, cart3d_filename=None, debug=True)

pyNastran.converters.tecplot.tecplot_to_cart3d.get_zone_tris_xyz(zone)[source]

gets the tris and associated xyz points

pyNastran.converters.tecplot.tecplot_to_cart3d.main()[source]

runs the test problem

pyNastran.converters.tecplot.tecplot_to_cart3d.tecplot_to_cart3d(tecplot_filename, cart3d_filename=None, remove_degenerate_tris=True, log=None, debug=True)[source]

Converts a Tecplot file to Cart3d.

Parameters
remove_degenerate_trisbool; default=False

removes degenerate triangles (triangles with an area of 0.0)

pyNastran.converters.tecplot.tecplot_to_cart3d.tecplot_to_cart3d_filename(tecplot_filename, cart3d_filename, remove_degenerate_tris=True, log=None, debug=True)[source]

Converts a Tecplot file to Cart3d.

tecplot_to_nastran Module

Defines:
  • tecplot_to_nastran(tecplot_filename, bdf_filename, debug=True)

  • tecplot_to_nastran(tecplot_filename, bdf_filename, debug=True)

pyNastran.converters.tecplot.tecplot_to_nastran.nastran_table_to_tecplot(bdf_model: pyNastran.bdf.bdf.BDF, case, variables: List[str]) → pyNastran.converters.tecplot.tecplot.Tecplot[source]

assumes only triangles

pyNastran.converters.tecplot.tecplot_to_nastran.nastran_tables_to_tecplot_filenames(tecplot_filename_base: str, bdf_model: pyNastran.bdf.bdf.BDF, case, variables: Optional[List[str]] = None, ivars: Optional[List[int]] = None) → None[source]
pyNastran.converters.tecplot.tecplot_to_nastran.tecplot_to_nastran(tecplot_filename: Union[str, Tecplot], bdf_filename: str, log: Optional[SimpleLogger] = None, debug: bool = True) → None[source]

Converts a Tecplot file to Nastran.

pyNastran.converters.tecplot.tecplot_to_nastran.tecplot_to_nastran_filename(tecplot_filename: Union[str, Tecplot], bdf_filename: str, log: Optional[SimpleLogger] = None, debug: bool = True) → BDF[source]

Converts a Tecplot file to Nastran.

utils Module

pyNastran.converters.tecplot.utils.merge_tecplot_files(tecplot_filenames, tecplot_filename_out=None, log=None)[source]

merges one or more tecplot files

utils Module

pyNastran.converters.tecplot.utils.merge_tecplot_files(tecplot_filenames, tecplot_filename_out=None, log=None)[source]

merges one or more tecplot files