free_faces Module

defines:

• get_element_faces(model, element_ids=None)

• get_solid_skin_faces(model)

• write_skin_solid_faces(model, skin_filename,

  write_solids=False, write_shells=True, size=8, is_double=False, encoding=None)

pyNastran.bdf.mesh_utils.free_faces.get_element_faces(model: BDF, element_ids: list[int] | None = None) → Any

Gets the elements and faces that are skinned from solid elements. This includes internal faces.

Parameters:

modelBDF()

the BDF object

element_idslist[int] / None

skin a subset of element faces default=None -> all elements

Returns:

eid_faces(int, list[(int, int, …)])

value1 : element id value2 : face

pyNastran.bdf.mesh_utils.free_faces.get_solid_skin_faces(model: BDF) → Any

Gets the elements and faces that are skinned from solid elements This doesn’t include internal faces.

Parameters:

modelBDF()

the BDF object

Returns:

eid_setdict[tuple(int, int, …)] = list[int]

key : sorted face value : list of element ids with that face

face_mapdict[tuple(int, int, …)] = list[int]

key : sorted face value : unsorted face

pyNastran.bdf.mesh_utils.free_faces.write_skin_solid_faces(model, skin_filename, write_solids=False, write_shells=True, size=8, is_double=False, encoding=None, punch=False, log=None)

Writes the skinned elements

Parameters:

modelBDF() or str

BDF : the BDF object str : bdf_filename and the read_bdf method is called

skin_filenamestr

the file to write

write_solidsbool; default=False

write solid elements that have skinned faces

write_shellsbool; default=False

write shell elements

sizeint; default=8

the field width

is_doublebool; default=False

double precision flag

encodingstr; default=None -> system default

the string encoding

loglogger; default=None

a python logging object

punchbool; default=False

is this a punch file; should be used by the read_bdf if model is a string unused