# coding: utf-8
#pylint disable=C0103
from itertools import count
import warnings
from typing import TextIO
import numpy as np
from pyNastran.utils.mathematics import get_abs_max
from pyNastran.utils.numpy_utils import integer_types
from pyNastran.op2.op2_interface.write_utils import to_column_bytes, view_dtype, view_idtype_as_fdtype
from pyNastran.op2.tables.oes_stressStrain.real.oes_objects import (
StressObject, StrainObject, OES_Object,
oes_real_data_code, get_scode,
set_static_case, set_modal_case, set_transient_case)
from pyNastran.op2.result_objects.op2_objects import get_times_dtype
from pyNastran.f06.f06_formatting import write_floats_13e, write_floats_13e_long, _eigenvalue_header
from pyNastran.op2.errors import SixtyFourBitError
NUM_WIDE_CENTROID = 17
NUM_WIDE_CORNER = 17
ELEMENT_NAME_TO_NUM_WIDE = {
'CTRIA3': NUM_WIDE_CENTROID,
'CQUAD4': NUM_WIDE_CENTROID,
#2 + 17 * nnodes_all
'CQUAD4-144': 2 + NUM_WIDE_CORNER*4,
'CQUADR': 2 + NUM_WIDE_CORNER*5,
'CQUAD8': 2 + NUM_WIDE_CORNER*5,
'CTRIA6': 2 + NUM_WIDE_CORNER*4,
'CTRIAR': 2 + NUM_WIDE_CORNER*4,
'CTRIAR_LINEAR': NUM_WIDE_CENTROID,
'CQUADR_LINEAR': NUM_WIDE_CENTROID,
}
ELEMENT_NAME_TO_ELEMENT_TYPE = {
'CTRIA3': 74,
'CQUAD4': 33,
'CQUAD4-144': 144,
'CQUADR': 82,
'CQUAD8': 64,
'CTRIA6': 75,
'CTRIAR': 70,
'CTRIAR_LINEAR': 227,
'CQUADR_LINEAR': 228,
}
[docs]
class RealPlateArray(OES_Object):
def __init__(self, data_code, is_sort1, isubcase, dt):
OES_Object.__init__(self, data_code, isubcase, apply_data_code=False)
#self.code = [self.format_code, self.sort_code, self.s_code]
#self.ntimes = 0 # or frequency/mode
#self.ntotal = 0
self.ielement = 0
self.nelements = 0 # result specific
self.nnodes = None
#if is_sort1:
#pass
#else:
#raise NotImplementedError('SORT2')
@property
def is_real(self) -> bool:
return True
@property
def is_complex(self) -> bool:
return False
@property
def nnodes_per_element(self) -> int:
if self.element_type in [33, 74, 83, 227, 228]:
nnodes_per_element = 1
elif self.element_type == 144:
nnodes_per_element = 5
elif self.element_type == 64: # CQUAD8
nnodes_per_element = 5
elif self.element_type == 82: # CQUADR
nnodes_per_element = 5
elif self.element_type == 70: # CTRIAR
nnodes_per_element = 4
elif self.element_type == 75: # CTRIA6
nnodes_per_element = 4
else:
raise NotImplementedError(f'name={self.element_name!r} type={self.element_type}')
return nnodes_per_element
def _reset_indices(self) -> None:
self.itotal = 0
self.ielement = 0
[docs]
def is_bilinear(self):
if self.element_type in [33, 74]: # CQUAD4, CTRIA3
return False
elif self.element_type in [144, 64, 82, 70, 75]: # CQUAD4
return True
else:
raise NotImplementedError(f'name={self.element_name} type={self.element_type}')
[docs]
def build(self):
"""sizes the vectorized attributes of the RealPlateArray"""
#print("self.ielement = %s" % self.ielement)
#print('ntimes=%s nelements=%s ntotal=%s' % (self.ntimes, self.nelements, self.ntotal))
assert self.ntimes > 0, 'ntimes=%s' % self.ntimes
assert self.nelements > 0, 'nelements=%s' % self.nelements
assert self.ntotal > 0, 'ntotal=%s' % self.ntotal
#nnodes = 2
#ntotal = 99164
# 99164 / 2 = 49582
# nelements = 49582
# nnodes = 49582 * 2 = 99164
#self.names = []
#factor = self.size // 4
nnodes_per_element = self.nnodes_per_element
#print(self.code_information())
#print('nnodes_per_element =', nnodes_per_element)
nlayers_per_element = 2 * nnodes_per_element
#print('nnodes_per_element[%s, %s] = %s' % (
#self.isubcase, self.element_type, nnodes_per_element))
self.nnodes = nnodes_per_element
#self.nelements //= nnodes_per_element
self.nelements //= self.ntimes
#self.ntotal //= factor
self.itime = 0
self.ielement = 0
self.itotal = 0
#self.ntimes = 0
#self.nelements = 0
#print("***name=%s type=%s nnodes_per_element=%s ntimes=%s nelements=%s ntotal=%s" % (
#self.element_name, self.element_type, nnodes_per_element, self.ntimes,
#self.nelements, self.ntotal))
dtype, idtype, fdtype = get_times_dtype(self.nonlinear_factor, self.size, self.analysis_fmt)
if self.is_sort1:
ntimes = self.ntimes
nlayers = self.nelements
else:
# NUMBER OF CQUAD4 ELEMENTS = 956
# NUMBER OF CTRIA3 ELEMENTS = 27
#***nelements=956 nlayers_per_element=2 ntimes=201 nlayers=1912
#***nelements=27 nlayers_per_element=2 ntimes=201
#print(self.ntimes, self.nelements, self.ntotal, self._ntotals)
nelements = self.ntimes # good
ntimes = self._ntotals[0] // nlayers_per_element
nlayers = nelements * nlayers_per_element
#print(f'***nelements={nelements} nlayers_per_element={nlayers_per_element} ntimes={ntimes} -> nlayers={nlayers}')
#nelements = self._ntotals[0] # good
#nlayers += 1
#ntimes = nlayers // nelements
assert nlayers % nelements == 0
#print('***', self.element_name, nlayers)
#assert nelements == 4, self.ntimes
#nelements = 4
#nelements = = self.ntimes // 2
#print(f'ntimes={ntimes} nelements={nelements} nlayers={nlayers}; '
#f'nlayers_per_element={nlayers_per_element}')
#bbb
#assert ntimes == 1, ntimes
#print(self.code_information())
if self.analysis_code == 1:
#ntimes = 1
if ntimes != 1:
# C:\MSC.Software\simcenter_nastran_2019.2\tpl_post1\acc002.op2
warnings.warn(f'ntimes != 1; {self.element_name}-{self.element_type}\n'
f'ntimes={ntimes} _ntotals={self._ntotals} '
f'sort_method={self.sort_method} nlayers_per_element={nlayers_per_element} nlayers={nlayers}')
assert nlayers >= 2, self.code_information()
_times = np.zeros(ntimes, dtype=self.analysis_fmt)
element_node = np.zeros((nlayers, 2), dtype=idtype)
#[fiber_dist, oxx, oyy, txy, angle, majorP, minorP, ovm]
data = np.zeros((ntimes, nlayers, 8), dtype=fdtype)
if self.load_as_h5:
#for key, value in sorted(self.data_code.items()):
#print(key, value)
group = self._get_result_group()
self._times = group.create_dataset('_times', data=_times)
self.element_node = group.create_dataset('element_node', data=element_node)
self.data = group.create_dataset('data', data=data)
else:
self._times = _times
self.element_node = element_node
self.data = data
#print(self.element_node.shape, self.data.shape)
[docs]
def abs_principal(self) -> np.ndarray:
"""hasn't been checked for strain; 2d von mises"""
omax = self.data[:, :, 5]
omin = self.data[:, :, 6]
abs_principal = get_abs_max(omin, omax, dtype=omin.dtype)
return abs_principal
[docs]
def von_mises(self) -> np.ndarray:
"""hasn't been checked for strain; 2d von mises"""
if self.is_von_mises:
return self.data[:, :, -1]
σxx = self.data[:, :, 1]
σyy = self.data[:, :, 2]
τxy = self.data[:, :, 3]
ovm = np.sqrt(σxx**2 + σyy**2 - σxx*σyy +3*(τxy**2) )
return ovm
[docs]
def max_shear(self) -> np.ndarray:
"""hasn't been checked for strain"""
if not self.is_von_mises:
return self.data[:, :, -1]
#headers = [fiber_dist, 'oxx', 'oyy', 'txy', 'angle', 'omax', 'omin', ovm]
omax = self.data[:, :, 5]
omin = self.data[:, :, 6]
max_shear = (omax - omin) / 2.
return max_shear
[docs]
def build_dataframe(self):
"""creates a pandas dataframe"""
import pandas as pd
headers = self.get_headers()
nelements = self.element_node.shape[0] // 2
if self.is_fiber_distance:
fiber_distance = ['Top', 'Bottom'] * nelements
else:
fiber_distance = ['Mean', 'Curvature'] * nelements
fd = np.array(fiber_distance, dtype='unicode')
node = pd.Series(data=self.element_node[:, 1])
node.replace(to_replace=0, value='CEN', inplace=True)
element_node = [
self.element_node[:, 0],
node,
fd,
]
if self.nonlinear_factor not in (None, np.nan):
# Mode 1 2 3
# Freq 1.482246e-10 3.353940e-09 1.482246e-10
# Eigenvalue -8.673617e-19 4.440892e-16 8.673617e-19
# Radians 9.313226e-10 2.107342e-08 9.313226e-10
# ElementID NodeID Location Item
# 8 0 Top fiber_distance -1.250000e-01 -1.250000e-01 -1.250000e-01
# oxx 7.092928e-12 -3.259632e-06 -9.558293e-12
# oyy 3.716007e-12 -2.195630e-06 -5.435632e-12
# txy -7.749725e-14 1.438695e-07 -6.269848e-13
# angle -1.313964e+00 8.243371e+01 -8.154103e+01
# omax 7.094705e-12 -2.176520e-06 -5.342388e-12
# omin 3.714229e-12 -3.278742e-06 -9.651537e-12
# von_mises 6.146461e-12 2.889834e-06 8.374427e-12
# Bottom fiber_distance 1.250000e-01 1.250000e-01 1.250000e-01
# oxx -7.530338e-12 2.134777e-06 1.063986e-11
# oyy -4.434658e-12 -9.347183e-07 6.212209e-12
# txy 2.291380e-12 -5.399188e-07 -4.161393e-12
# angle 6.201962e+01 -9.690845e+00 -3.099370e+01
# omax -3.217317e-12 2.226978e-06 1.313966e-11
# omin -8.747680e-12 -1.026920e-06 3.712415e-12
# von_mises 7.663484e-12 2.881133e-06 1.173255e-11
# 9 0 Top fiber_distance -1.250000e-01 -1.250000e-01 -1.250000e-01
#
#LoadStep 1.0
#ElementID NodeID Location Item
#2001 CEN Top fiber_distance -0.635000
# Bottom oxx 26.197712
#2007 CEN Top oyy 65.378319
# Bottom txy -28.221191
#2008 CEN Top angle -62.383610
#... ...
#2024 CEN Bottom txy -28.961452
#2025 CEN Top angle -21.011902
# Bottom omax -23.810177
#2033 CEN Top omin -110.334686
# Bottom von_mises 100.566292
#
column_names, column_values = self._build_dataframe_transient_header()
names = ['ElementID', 'NodeID', 'Location', 'Item']
data_frame = self._build_pandas_transient_element_node(
column_values, column_names,
headers, element_node, self.data, from_tuples=False, from_array=True,
names=names,
)
else:
# option B - nice!
df1 = pd.DataFrame(element_node).T
df1.columns = ['ElementID', 'NodeID', 'Location']
df2 = pd.DataFrame(self.data[0])
df2.columns = headers
data_frame = df1.join(df2)
data_frame = data_frame.reset_index().set_index(['ElementID', 'NodeID', 'Location'])
self.data_frame = data_frame
@classmethod
def _add_case(cls,
table_name, element_name, isubcase,
is_sort1, is_random, is_msc,
random_code, title, subtitle, label):
is_strain = 'Strain' in cls.__name__
num_wide = ELEMENT_NAME_TO_NUM_WIDE[element_name]
data_code = oes_real_data_code(table_name,
element_name, num_wide,
is_sort1=is_sort1, is_random=is_random,
random_code=random_code,
title=title, subtitle=subtitle, label=label,
is_msc=is_msc)
# I'm only sure about the 1s in the strains and the
# corresponding 0s in the stresses.
#stress / strain -> 1, 3
# stress_bits[2] = 0 # curvature
# stress_bits[4] = 1 # von mises (vs. max shear)
fiber = 1
von_mises = 0
if is_strain:
strain = 1
else:
strain = 0
stress_bits = [0, strain, fiber, strain, von_mises]
s_code = get_scode(stress_bits)
# stress
assert stress_bits[1] == stress_bits[3], 'stress_bits=%s' % (stress_bits)
data_code['stress_bits'] = stress_bits
data_code['s_code'] = s_code
element_type = ELEMENT_NAME_TO_ELEMENT_TYPE[element_name]
data_code['element_name'] = element_name
data_code['element_type'] = element_type
return data_code
[docs]
@classmethod
def add_static_case(cls, table_name, element_name, nnodes, element_node, fiber, data, isubcase,
is_sort1=True, is_random=False, is_msc=True,
random_code=0, title='', subtitle='', label=''):
data_code = cls._add_case(
table_name, element_name,
isubcase, is_sort1, is_random, is_msc,
random_code, title, subtitle, label)
obj = set_static_case(cls, is_sort1, isubcase, data_code,
set_element_node_fiber_case, (nnodes, element_node, fiber, data))
return obj
[docs]
@classmethod
def add_modal_case(cls, table_name, element_name: str, nnodes, element_node, fiber, data, isubcase,
modes, eigns, cycles,
is_sort1=True, is_random=False, is_msc=True,
random_code=0, title='', subtitle='', label=''):
data_code = cls._add_case(
table_name, element_name,
isubcase, is_sort1, is_random, is_msc,
random_code, title, subtitle, label)
obj = set_modal_case(cls, is_sort1, isubcase, data_code,
set_element_node_fiber_case, (nnodes, element_node, fiber, data),
modes, eigns, cycles)
return obj
[docs]
@classmethod
def add_transient_case(cls, table_name, element_name, nnodes, element_node, fiber, data, isubcase,
times,
is_sort1=True, is_random=False, is_msc=True,
random_code=0, title='', subtitle='', label=''):
data_code = cls._add_case(
table_name, element_name,
isubcase, is_sort1, is_random, is_msc,
random_code, title, subtitle, label)
obj = set_transient_case(cls, is_sort1, isubcase, data_code,
set_element_node_fiber_case, (nnodes, element_node, fiber, data),
times)
return obj
def __eq__(self, table): # pragma: no cover
assert self.is_sort1 == table.is_sort1
self._eq_header(table)
if not np.array_equal(self.data, table.data):
msg = 'table_name=%r class_name=%s\n' % (self.table_name, self.__class__.__name__)
msg += '%s\n' % str(self.code_information())
i = 0
for itime in range(self.ntimes):
for ie, element_nodei in enumerate(self.element_node):
(eid, nid) = element_nodei
t1 = self.data[itime, ie, :]
t2 = table.data[itime, ie, :]
(fiber_dist1, oxx1, oyy1, txy1, angle1, major_p1, minor_p1, ovm1) = t1
(fiber_dist2, oxx2, oyy2, txy2, angle2, major_p2, minor_p2, ovm2) = t2
# vm stress can be NaN for some reason...
if not np.array_equal(t1[:-1], t2[:-1]):
msg += '(%s, %s) (%s, %s, %s, %s, %s, %s, %s, %s) (%s, %s, %s, %s, %s, %s, %s, %s)\n' % (
eid, nid,
fiber_dist1, oxx1, oyy1, txy1, angle1, major_p1, minor_p1, ovm1,
fiber_dist2, oxx2, oyy2, txy2, angle2, major_p2, minor_p2, ovm2)
i += 1
if i > 10:
print(msg)
raise ValueError(msg)
#print(msg)
if i > 0:
raise ValueError(msg)
return True
[docs]
def add_new_eid_sort1(self, dt, eid, node_id,
fiber_dist1, oxx1, oyy1, txy1, angle1, major_principal1, minor_principal1, ovm1,
fiber_dist2, oxx2, oyy2, txy2, angle2, major_principal2, minor_principal2, ovm2):
assert isinstance(eid, integer_types), eid
assert isinstance(node_id, integer_types), node_id
self._times[self.itime] = dt
#assert self.itotal == 0, oxx
self.element_node[self.itotal, :] = [eid, node_id]
self.element_node[self.itotal+1, :] = [eid, node_id]
self.data[self.itime, self.itotal, :] = [fiber_dist1, oxx1, oyy1, txy1, angle1,
major_principal1, minor_principal1, ovm1]
self.data[self.itime, self.itotal+1, :] = [fiber_dist2, oxx2, oyy2, txy2, angle2,
major_principal2, minor_principal2, ovm2]
self.itotal += 2
self.ielement += 2
def add_sort1(self, dt, eid, node_id,
fiber_dist1, oxx1, oyy1, txy1, angle1, major_principal1, minor_principal1, ovm1,
fiber_dist2, oxx2, oyy2, txy2, angle2, major_principal2, minor_principal2, ovm2):
assert self.sort_method == 1, self
assert eid is not None, eid
assert isinstance(eid, integer_types) and eid > 0, 'dt=%s eid=%s' % (dt, eid)
assert isinstance(node_id, integer_types), node_id
self.element_node[self.itotal, :] = [eid, node_id]
self.element_node[self.itotal+1, :] = [eid, node_id]
self.data[self.itime, self.itotal, :] = [fiber_dist1, oxx1, oyy1, txy1, angle1,
major_principal1, minor_principal1, ovm1]
self.data[self.itime, self.itotal+1, :] = [fiber_dist2, oxx2, oyy2, txy2, angle2,
major_principal2, minor_principal2, ovm2]
self.itotal += 2
#self.ielement += 2
def _get_sort2_itime_ilower_iupper_from_itotal(self, dt, eid: int, nid: int,
debug=False) -> tuple[int, int, int]:
ntimes = self.data.shape[0]
# the monotonic element index (no duplicates)
ielement = self.itime
# itime = self.itime
itime = self.ielement
#ie_upper = self.ielement
#ie_lower = self.ielement + 1
#itotal = self.itotal
#inid = 0
nnodes = self.nnodes_per_element
#itime = self.ielement // nnodes
#ilayer = self.itotal % 2 == 0 # 0/1
#ielement_inid = self.itotal // ntimes
inid = self.itotal // (2 * ntimes)
if self.element_type in {33, 74, 227, 228}:
# CQUAD4-33, CTRIA3-74, CTRIAR-227, CQUADR-228
assert inid == 0, (self.element_name, self.element_type, inid)
#print('inid', inid)
elif self.element_type in [64, 144]: # CQUAD8, CQUAD4-144
assert inid in (0, 1, 2, 3, 4), (self.element_name, self.element_type, inid)
elif self.element_type == 75: # CQUAD8
assert inid in (0, 1, 2, 3), (self.element_name, self.element_type, inid)
else:
raise NotImplementedError((self.element_name, self.element_type, inid))
#inid = self.ielement % nnodes
#itotal = self.itotal
#if itime >= self.data.shape[0]:# or itotal >= self.element_node.shape[0]:
ielement = self.itime
#if self.element_name == 'CQUAD8':
#print(f'*SORT2 {self.element_name}: itime={itime} ielement={ielement} ilayer={ilayer} inid={inid} itotal={itotal} dt={dt} eid={eid} nid={nid}')
#print(f'*SORT2 {self.element_name}: itime={itime} ielement={ielement} ilayer=False inid={inid} itotal={itotal+1} dt={dt} eid={eid} nid={nid}')
#print(self.data.shape)
#print(self.element_node.shape)
#else:
#aaa
#print(itime, inid, ielement)
#ibase = 2 * ielement # ctria3/cquad4-33
if debug:
print(f'ielement={ielement} nnodes={nnodes} inid={inid}')
ibase = 2 * (ielement * nnodes + inid)
#ibase = ielement_inid
ie_upper = ibase
ie_lower = ibase + 1
#if self.element_name == 'CTRIAR': # and self.table_name == 'OESATO2':
#debug = False
#if self.element_name == 'CTRIAR': # and self.table_name in ['OSTRRMS1', 'OSTRRMS2']:
#debug = True
#if debug:
#print(f'SORT2 {self.table_name} {self.element_name}: itime={itime} ie_upper={ie_upper} ielement={self.itime} inid={inid} nid={nid} itotal={itotal} dt={dt} eid={eid} nid={nid}')
#print(f'SORT2 {self.table_name} {self.element_name}: itime={itime} ie_lower={ie_lower} ielement={self.itime} inid={inid} nid={nid} itotal={itotal+1} dt={dt} eid={eid} nid={nid}')
return itime, ie_upper, ie_lower
[docs]
def add_new_eid_sort2(self, dt, eid, node_id,
fiber_dist1, oxx1, oyy1, txy1, angle1, major_principal1, minor_principal1, ovm1,
fiber_dist2, oxx2, oyy2, txy2, angle2, major_principal2, minor_principal2, ovm2):
assert isinstance(eid, integer_types), eid
assert isinstance(node_id, integer_types), node_id
#itime, itotal = self._get_sort2_itime_ielement_from_itotal()
itime, ie_upper, ie_lower = self._get_sort2_itime_ilower_iupper_from_itotal(dt, eid, node_id)
try:
#print(f'SORT2: itime={itime} -> dt={dt}; ie_upper={ie_upper} -> eid={eid} ({self.element_name})')
self._times[itime] = dt
#assert self.itotal == 0, oxx
#if itime == 0:
self.element_node[ie_upper, :] = [eid, node_id] # 0 is center
self.element_node[ie_lower, :] = [eid, node_id] # 0 is center
except Exception:
itime, ie_upper, ie_lower = self._get_sort2_itime_ilower_iupper_from_itotal(
dt, eid, node_id, debug=True)
print(f'SORT2: itime={itime} -> dt={dt}; ie_upper={ie_upper} -> eid={eid} ({self.element_name})')
raise
#print(self.element_node)
#self.data[self.itime, ie_upper, :] = [fiber_dist1, oxx1, oyy1, txy1, angle1,
#major_principal1, minor_principal1, ovm1]
#self.data[self.itime, ie_lower, :] = [fiber_dist2, oxx2, oyy2, txy2, angle2,
#major_principal2, minor_principal2, ovm2]
self.itotal += 2
#self.ielement += 1
def add_sort2(self, dt, eid, node_id,
fiber_dist1, oxx1, oyy1, txy1, angle1, major_principal1, minor_principal1, ovm1,
fiber_dist2, oxx2, oyy2, txy2, angle2, major_principal2, minor_principal2, ovm2):
assert self.is_sort2, self
assert eid is not None, eid
assert isinstance(eid, integer_types) and eid > 0, 'dt=%s eid=%s' % (dt, eid)
assert isinstance(node_id, integer_types), node_id
itime, ie_upper, ie_lower = self._get_sort2_itime_ilower_iupper_from_itotal(dt, eid, node_id)
#print(f'SORT2b: itime={itime} -> dt={dt}; ie_upper={ie_upper} -> eid={eid} nid={node_id}')
#print(self.element_node.shape)
#if itime == 0:
self.element_node[ie_upper, :] = [eid, node_id]
self.element_node[ie_lower, :] = [eid, node_id]
#print(self.element_node.tolist())
self.data[itime, ie_upper, :] = [fiber_dist1, oxx1, oyy1, txy1, angle1,
major_principal1, minor_principal1, ovm1]
self.data[itime, ie_lower, :] = [fiber_dist2, oxx2, oyy2, txy2, angle2,
major_principal2, minor_principal2, ovm2]
self.itotal += 2
#self.ielement += 2
[docs]
def get_stats(self, short: bool=False) -> list[str]:
if not self.is_built:
return [
f'<{self.__class__.__name__}>; table_name={self.table_name!r}\n',
f' ntimes: {self.ntimes:d}\n',
f' ntotal: {self.ntotal:d}\n',
]
nelements = self.nelements
ntimes = self.ntimes
nnodes = self.nnodes
ntotal = self.ntotal
nlayers = 2
nelements = self.ntotal // self.nnodes // 2
msg = []
if self.nonlinear_factor not in (None, np.nan): # transient
msgi = ' type=%s ntimes=%i nelements=%i nnodes_per_element=%i nlayers=%i ntotal=%i\n' % (
self.__class__.__name__, ntimes, nelements, nnodes, nlayers, ntotal)
ntimes_word = 'ntimes'
else:
msgi = ' type=%s nelements=%i nnodes_per_element=%i nlayers=%i ntotal=%i\n' % (
self.__class__.__name__, nelements, nnodes, nlayers, ntotal)
ntimes_word = '1'
msg.append(msgi)
headers = self.get_headers()
n = len(headers)
msg.append(' data: [%s, ntotal, %i] where %i=[%s]\n' % (ntimes_word, n, n,
str(', '.join(headers))))
msg.append(f' element_node.shape = {self.element_node.shape}\n')
msg.append(f' data.shape={self.data.shape}\n')
msg.append(f' element type: {self.element_name}-{self.element_type}\n')
msg.append(f' s_code: {self.s_code}\n')
msg += self.get_data_code()
return msg
[docs]
def get_element_index(self, eids):
# elements are always sorted; nodes are not
itot = np.searchsorted(eids, self.element_node[:, 0]) #[0]
return itot
[docs]
def eid_to_element_node_index(self, eids):
ind = np.ravel([np.searchsorted(self.element_node[:, 0] == eid) for eid in eids])
#ind = searchsorted(eids, self.element)
#ind = ind.reshape(ind.size)
#ind.sort()
return ind
[docs]
def write_csv(self, csv_file: TextIO,
is_exponent_format: bool=False,
is_mag_phase: bool=False, is_sort1: bool=True,
write_header: bool=True):
"""
Stress Table - PSHELL
---------------------
2, stress, , , , , , , , ,
, E_type, CQUAD4, (PSHELL), , , , , , ,
Flag, SubcaseID, iTime, EID, NID, FD, Sxx, Syy, Szz, Sxy, Syz, Szx
2, 1, 0, 301, 0, 0.125, 265.173, 1535.666, 0, 169.811, 0, 0
2, 1, 0, 301, 101, 0.125, 62.7342, 1021.736, 0, 759.3948, 0, 0
2, 1, 0, 301, 102, 0.125, 12671707, 1078.741, 0, 1352.053, 0, 0
2, 1, 0, 301, 103, 0.125, 1797.972, 1944.449, 0, 719.5833, 0, 0
2, 1, 0, 301, 104, 0.125, 1109.873, 1651.793, 0, 1187.893, 0, 0
2, 1, 0, 301, 0, -0.125, 389.2484, 1939.577, 0, 1270.192, 0, 0
2, 1, 0, 301, 101, -0.125, 500.0936, 832.8021, 0, 1562.421, 0, 0
2, 1, 0, 301, 102, -0.125, 1118429, 441.4652, 0, 303.9695, 0, 0
2, 1, 0, 301, 103, -0.125, 530.9528, 116.0281, 0, 522.3726, 0, 0
2, 1, 0, 301, 104, -0.125, 295.108, 1303.783, 0, 1465.683, 0, 0
, E_type, CTRIA3, (PSHELL), , , , , , ,
Flag, SubcaseID, iTime, EID, NID, FD, Sxx, Syy, Szz, Sxy, Syz, Szx
2, 1, 0, 302, 0, -0.125, 1289.590, 640.5084, 0, 1822.057, 0, 0
2, 1, 0, 302, 0, 0.125, 1851.625, 1957.094, 0, 1276.033, 0, 0
"""
name = str(self.__class__.__name__)
if write_header:
csv_file.write('# %s\n' % name)
headers = ['Flag', 'SubcaseID', 'iTime', 'Eid', 'Nid', 'FD', 'Sxx', 'Syy', 'Szz', 'Sxy', 'Syz', 'Sxz']
csv_file.write('# ' + ','.join(headers) + '\n')
# stress vs. strain
flag = 10 if 'Stress' in name else 11
#node = self.node_gridtype[:, 0]
#gridtype = self.node_gridtype[:, 1]
#itime = 0
isubcase = self.isubcase
#times = self._times
# write the f06
ntimes = self.data.shape[0]
eids = self.element_node[:, 0]
nids = self.element_node[:, 1]
nid_len = '%d' % len(str(nids.max()))
eid_len = '%d' % len(str(eids.max()))
zero = ' 0.000000E+00'
#cen_word = 'CEN/%i' % nnodes
#cen_word = cen
for itime in range(ntimes):
#dt = self._times[itime]
#header = _eigenvalue_header(self, header, itime, ntimes, dt)
#f06_file.write(''.join(header + msg))
#print("self.data.shape=%s itime=%s ieids=%s" % (str(self.data.shape), itime, str(ieids)))
#[fiber_dist, oxx, oyy, txy, angle, majorP, minorP, ovm]
fiber_dist = self.data[itime, :, 0]
oxx = self.data[itime, :, 1]
oyy = self.data[itime, :, 2]
txy = self.data[itime, :, 3]
#angle = self.data[itime, :, 4]
#major_principal = self.data[itime, :, 5]
#minor_principal = self.data[itime, :, 6]
#ovm = self.data[itime, :, 7]
is_linear = self.element_type in {33, 74, 227, 228, 83}
is_bilinear = self.element_type in {64, 70, 75, 82, 144}
for (i, eid, nid, fdi, oxxi, oyyi, txyi) in zip(
count(), eids, nids, fiber_dist, oxx, oyy, txy):
if is_exponent_format:
[fdi, oxxi, oyyi, txyi] = write_floats_13e_long(
[fdi, oxxi, oyyi, txyi])
#Flag, SubcaseID, iTime, EID, NID, FD, Sxx, Syy, Szz, Sxy, Syz, Szx
#2, 1, 0, 301, 0, 0.125, 265.173, 1535.666, 0, 169.811, 0, 0
#2, 1, 0, 301, 101, 0.125, 62.7342, 1021.736, 0, 759.3948, 0, 0
# tria3
if is_linear: # CQUAD4, CTRIA3, CTRIAR linear, CQUADR linear
csv_file.write(f'{flag}, {isubcase}, {itime}, {eid:{eid_len}d}, {0:{nid_len}d}, {fdi}, {oxxi}, {oyyi}, {zero}, {txyi}, {zero}, {zero}\n')
elif is_bilinear: # CQUAD8, CTRIAR, CTRIA6, CQUADR, CQUAD4
# bilinear
csv_file.write(f'{flag}, {isubcase}, {itime}, {eid:{eid_len}d}, {nid:{nid_len}d}, {fdi}, {oxxi}, {oyyi}, {zero}, {txyi}, {zero}, {zero}\n')
else: # pragma: no cover
msg = 'element_name=%s self.element_type=%s' % (
self.element_name, self.element_type)
raise NotImplementedError(msg)
return
[docs]
def write_f06(self, f06_file: TextIO, header=None, page_stamp='PAGE %s',
page_num: int=1, is_mag_phase: bool=False, is_sort1: bool=True):
if header is None:
header = []
msg, nnodes, cen = _get_plate_msg(self)
# write the f06
ntimes = self.data.shape[0]
eids = self.element_node[:, 0]
nids = self.element_node[:, 1]
#cen_word = 'CEN/%i' % nnodes
cen_word = cen
for itime in range(ntimes):
dt = self._times[itime]
header = _eigenvalue_header(self, header, itime, ntimes, dt)
f06_file.write(''.join(header + msg))
#print("self.data.shape=%s itime=%s ieids=%s" % (str(self.data.shape), itime, str(ieids)))
#[fiber_dist, oxx, oyy, txy, angle, majorP, minorP, ovm]
fiber_dist = self.data[itime, :, 0]
oxx = self.data[itime, :, 1]
oyy = self.data[itime, :, 2]
txy = self.data[itime, :, 3]
angle = self.data[itime, :, 4]
major_principal = self.data[itime, :, 5]
minor_principal = self.data[itime, :, 6]
ovm = self.data[itime, :, 7]
is_linear = self.element_type in {33, 74, 227, 228, 83}
is_bilinear = self.element_type in {64, 70, 75, 82, 144}
for (i, eid, nid, fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi) in zip(
count(), eids, nids, fiber_dist, oxx, oyy, txy, angle, major_principal, minor_principal, ovm):
[fdi, oxxi, oyyi, txyi, major, minor, ovmi] = write_floats_13e(
[fdi, oxxi, oyyi, txyi, major, minor, ovmi])
ilayer = i % 2
# tria3
if is_linear: # CQUAD4, CTRIA3, CTRIAR linear, CQUADR linear
if ilayer == 0:
f06_file.write('0 %6i %-13s %-13s %-13s %-13s %8.4f %-13s %-13s %s\n' % (
eid, fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi))
else:
f06_file.write(' %6s %-13s %-13s %-13s %-13s %8.4f %-13s %-13s %s\n' % (
'', fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi))
elif is_bilinear: # CQUAD8, CTRIAR, CTRIA6, CQUADR, CQUAD4
# bilinear
if nid == 0 and ilayer == 0: # CEN
f06_file.write('0 %8i %8s %-13s %-13s %-13s %-13s %8.4f %-13s %-13s %s\n' % (
eid, cen_word, fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi))
elif ilayer == 0:
f06_file.write(' %8s %8i %-13s %-13s %-13s %-13s %8.4f %-13s %-13s %s\n' % (
'', nid, fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi))
elif ilayer == 1:
f06_file.write(' %8s %8s %-13s %-13s %-13s %-13s %8.4f %-13s %-13s %s\n\n' % (
'', '', fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi))
else: # pragma: no cover
msg = 'element_name=%s self.element_type=%s' % (
self.element_name, self.element_type)
raise NotImplementedError(msg)
f06_file.write(page_stamp % page_num)
page_num += 1
return page_num - 1
[docs]
def get_nnodes_bilinear(self):
"""gets the number of nodes and whether or not the element has bilinear results"""
is_bilinear = False
if self.element_type == 74:
nnodes = 3
elif self.element_type == 33:
nnodes = 4
elif self.element_type == 144:
nnodes = 4
is_bilinear = True
elif self.element_type == 82: # CQUADR
nnodes = 4
is_bilinear = True
elif self.element_type == 64: # CQUAD8
nnodes = 4
is_bilinear = True
elif self.element_type == 75: # CTRIA6
nnodes = 3
is_bilinear = True
elif self.element_type == 70: # CTRIAR
nnodes = 3
is_bilinear = True
elif self.element_type == 227: # CTRIAR-linear
nnodes = 3
is_bilinear = False
elif self.element_type == 228: # CQUADR-linear
nnodes = 4
is_bilinear = False
else:
raise NotImplementedError(f'name={self.element_name} type={self.element_type}')
return nnodes, is_bilinear
[docs]
def write_op2(self, op2_file, op2_ascii, itable, new_result,
date, is_mag_phase=False, endian='>'):
"""writes an OP2"""
import inspect
from struct import Struct
frame = inspect.currentframe()
call_frame = inspect.getouterframes(frame, 2)
op2_ascii.write(f'{self.__class__.__name__}.write_op2: {call_frame[1][3]}\n')
if itable == -1:
self._write_table_header(op2_file, op2_ascii, date)
itable = -3
nnodes, is_bilinear = self.get_nnodes_bilinear()
if is_bilinear:
nnodes_all = nnodes + 1
ntotal = 2 + 17 * nnodes_all
else:
nnodes_all = nnodes
#print("nnodes_all =", nnodes_all)
#cen_word_ascii = f'CEN/{nnodes:d}'
cen_word_bytes = b'CEN/'
idtype = self.element_node.dtype
fdtype = self.data.dtype
if self.size == fdtype.itemsize:
pass
else:
print(f'downcasting {self.class_name}...')
#cen_word_bytes = b'CEN/ '
idtype = np.int32(1)
fdtype = np.float32(1.0)
#msg.append(f' element_node.shape = {self.element_node.shape}\n')
#msg.append(f' data.shape={self.data.shape}\n')
eids = self.element_node[:, 0]
nids = self.element_node[:, 1]
max_id = self.element_node.max()
if max_id > 99999999:
raise SixtyFourBitError(f'64-bit OP2 writing is not supported; max id={max_id}')
eids_device = eids * 10 + self.device_code
nelements = len(np.unique(eids))
nlayers = len(eids)
#print('nelements =', nelements)
#print('nlayers =', nlayers)
nnodes_per_element = nlayers // nelements // 2
assert nnodes_per_element in [1, 4, 5], nnodes_per_element
# 21 = 1 node, 3 principal, 6 components, 9 vectors, 2 p/ovm
#ntotal = ((nnodes * 21) + 1) + (nelements * 4)
ntotali = self.num_wide
ntotal = ntotali * nelements
assert nnodes > 1, nnodes
op2_ascii.write(f' ntimes = {self.ntimes}\n')
#[fiber_dist, oxx, oyy, txy, angle, majorP, minorP, ovm]
op2_ascii.write(' #elementi = [eid_device, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 1+16
op2_ascii.write(' #elementi = [eid_device, node1, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 1 + 17*5
op2_ascii.write(' #elementi = [ node2, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 17
op2_ascii.write(' #elementi = [ node3, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 17
op2_ascii.write(' #elementi = [ node4, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 17
op2_ascii.write(' #elementi = [ node5, fd1, sx1, sy1, txy1, angle1, major1, minor1, vm1,\n')
op2_ascii.write(' # fd2, sx2, sy2, txy2, angle2, major2, minor2, vm2,]\n') # 17
if not self.is_sort1:
raise NotImplementedError('SORT2')
#struct_isi8f = Struct('i 4s i 8f')
#struct_i8f = Struct(endian + b'i8f')
#struct_8f = Struct(endian + b'8f')
nelements_nnodes = len(nids) // 2
is_centroid = self.element_type in [33, 74, 227, 228]
is_nodes = self.element_type in [64, 70, 75, 82, 144]
if is_centroid:
eids_device2 = to_column_bytes([eids_device[::2]], idtype).view(fdtype)
assert len(eids_device2) == nelements
elif is_nodes:
cen_word_array_temp = np.full((nelements, 1), cen_word_bytes)
cen_word_array = cen_word_array_temp.view(fdtype)
eids_device2 = view_idtype_as_fdtype(eids_device[::2*nnodes_per_element].reshape(nelements, 1),
fdtype)
nids2 = view_idtype_as_fdtype(nids[::2].reshape(nelements_nnodes, 1),
fdtype)
#nheader = 15
struct_i = Struct('i')
struct_13i = Struct('13i')
op2_ascii.write(f'nelements={nelements:d}\n')
for itime in range(self.ntimes):
self._write_table_3(op2_file, op2_ascii, new_result, itable, itime)
# record 4
#print('stress itable = %s' % itable)
itable -= 1
header = [4, itable, 4,
4, 1, 4,
4, 0, 4,
4, ntotal, 4,
4 * ntotal]
op2_file.write(struct_13i.pack(*header))
op2_ascii.write('r4 [4, 0, 4]\n')
op2_ascii.write(f'r4 [4, {itable:d}, 4]\n')
op2_ascii.write(f'r4 [4, {4 * ntotal:d}, 4]\n')
datai_ = self.data[itime, :, :]
# 16 values
# [eid_device, fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi]
# [ fdi, oxxi, oyyi, txyi, anglei, major, minor, ovmi]
if is_centroid:
datai2_ = datai_.reshape(nelements, 16)
datai = view_dtype(datai2_, fdtype)
data_out = np.hstack([eids_device2, datai])
elif is_nodes:
# CQUAD8, CTRIAR, CTRIA6, CQUADR, CQUAD4
# bilinear
#16
datai2_ = datai_.reshape(nelements*nnodes_per_element, 16)
datai = view_dtype(datai2_, fdtype)
nids_data = np.hstack([nids2, datai]).reshape(nelements, nnodes_per_element*17)
data_out = np.hstack([eids_device2, cen_word_array, nids_data])
else: # pragma: no cover
msg = f'element_name={self.element_name} element_type={self.element_type}'
raise NotImplementedError(msg)
assert data_out.size == ntotal, f'data_out.shape={data_out.shape} size={data_out.size}; ntotal={ntotal}'
op2_file.write(data_out)
itable -= 1
header = [4 * ntotal,]
op2_file.write(struct_i.pack(*header))
op2_ascii.write('footer = %s\n' % header)
new_result = False
return itable
[docs]
class RealPlateStressArray(RealPlateArray, StressObject):
def __init__(self, data_code, is_sort1, isubcase, dt):
RealPlateArray.__init__(self, data_code, is_sort1, isubcase, dt)
StressObject.__init__(self, data_code, isubcase)
[docs]
class RealPlateStrainArray(RealPlateArray, StrainObject):
"""
used for:
- RealPlateStressArray
- RealPlateStrainArray
"""
def __init__(self, data_code, is_sort1, isubcase, dt):
RealPlateArray.__init__(self, data_code, is_sort1, isubcase, dt)
StrainObject.__init__(self, data_code, isubcase)
def _get_plate_msg(self):
von_mises = 'VON MISES' if self.is_von_mises else 'MAX SHEAR'
if self.is_stress:
if self.is_fiber_distance:
quad_msg_temp = [' ELEMENT FIBER STRESSES IN ELEMENT COORD SYSTEM PRINCIPAL STRESSES (ZERO SHEAR) \n',
' ID GRID-ID DISTANCE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s \n' % von_mises]
tri_msg_temp = [' ELEMENT FIBER STRESSES IN ELEMENT COORD SYSTEM PRINCIPAL STRESSES (ZERO SHEAR) \n',
' ID. DISTANCE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s\n' % von_mises]
else:
quad_msg_temp = [' ELEMENT FIBER STRESSES IN ELEMENT COORD SYSTEM PRINCIPAL STRESSES (ZERO SHEAR) \n',
' ID GRID-ID CURVATURE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s \n' % von_mises]
tri_msg_temp = [' ELEMENT FIBER STRESSES IN ELEMENT COORD SYSTEM PRINCIPAL STRESSES (ZERO SHEAR) \n',
' ID. CURVATURE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s\n' % von_mises]
oes1a = ' - OES1A' if self.table_name_str == 'OES1A' else ''
cquad4_msg = [f' S T R E S S E S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 4 ){oes1a}\n'] + tri_msg_temp
cquad8_msg = [f' S T R E S S E S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 8 ){oes1a}\n'] + tri_msg_temp
cquadr_msg = [f' S T R E S S E S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D R ){oes1a}\n'] + tri_msg_temp
#cquadr_bilinear_msg = [' S T R E S S E S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D R ) OPTION = BILIN \n \n'] + quad_msg_temp
cquad4_bilinear_msg = [f' S T R E S S E S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 4 ){oes1a} OPTION = BILIN \n \n'] + quad_msg_temp
ctria3_msg = [f' S T R E S S E S I N T R I A N G U L A R E L E M E N T S ( T R I A 3 ){oes1a}\n'] + tri_msg_temp
ctria6_msg = [f' S T R E S S E S I N T R I A N G U L A R E L E M E N T S ( T R I A 6 ){oes1a}\n'] + tri_msg_temp
ctriar_msg = [f' S T R E S S E S I N T R I A N G U L A R E L E M E N T S ( T R I A R ){oes1a}\n'] + tri_msg_temp
else:
if self.is_fiber_distance:
quad_msg_temp = [' ELEMENT STRAIN STRAINS IN ELEMENT COORD SYSTEM PRINCIPAL STRAINS (ZERO SHEAR) \n',
' ID GRID-ID DISTANCE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s \n' % von_mises]
tri_msg_temp = [' ELEMENT FIBER STRAINS IN ELEMENT COORD SYSTEM PRINCIPAL STRAINS (ZERO SHEAR) \n',
' ID. DISTANCE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s\n' % von_mises]
else:
quad_msg_temp = [' ELEMENT STRAIN STRAINS IN ELEMENT COORD SYSTEM PRINCIPAL STRAINS (ZERO SHEAR) \n',
' ID GRID-ID CURVATURE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s \n' % von_mises]
tri_msg_temp = [' ELEMENT STRAIN STRAINS IN ELEMENT COORD SYSTEM PRINCIPAL STRAINS (ZERO SHEAR) \n',
' ID. CURVATURE NORMAL-X NORMAL-Y SHEAR-XY ANGLE MAJOR MINOR %s\n' % von_mises]
cquad4_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 4 )\n'] + tri_msg_temp
cquad8_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 8 )\n'] + tri_msg_temp
cquadr_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D R )\n'] + tri_msg_temp
#cquadr_bilinear_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D R ) OPTION = BILIN \n \n'] + quad_msg_temp
cquad4_bilinear_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D 4 ) OPTION = BILIN \n \n'] + quad_msg_temp
cquadr_msg = [' S T R A I N S I N Q U A D R I L A T E R A L E L E M E N T S ( Q U A D R )\n'] + tri_msg_temp
ctria3_msg = [' S T R A I N S I N T R I A N G U L A R E L E M E N T S ( T R I A 3 )\n'] + tri_msg_temp
ctria6_msg = [' S T R A I N S I N T R I A N G U L A R E L E M E N T S ( T R I A 6 )\n'] + tri_msg_temp
ctriar_msg = [' S T R A I N S I N T R I A N G U L A R E L E M E N T S ( T R I A R )\n'] + tri_msg_temp
if self.element_type in [74, 83]:
msg = ctria3_msg
nnodes = 3
cen = 'CEN/3'
elif self.element_type == 33:
msg = cquad4_msg
nnodes = 4
cen = 'CEN/4'
#elif self.element_type == 228:
#msg = cquadr_msg
#nnodes = 4
#cen = None # 'CEN/4'
elif self.element_type == 144:
msg = cquad4_bilinear_msg
nnodes = 4
cen = 'CEN/4'
elif self.element_type in [82, 228]: # CQUADR bilinear, CQUADR linear
msg = cquadr_msg
nnodes = 4
cen = 'CEN/4'
elif self.element_type == 64: # CQUAD8
msg = cquad8_msg
nnodes = 4
cen = 'CEN/8'
elif self.element_type == 75: # CTRIA6
msg = ctria6_msg
nnodes = 3
cen = 'CEN/6'
elif self.element_type in [70, 227]:
# 70: CTRIAR bilinear
# 227: CTRIAR linear
msg = ctriar_msg
nnodes = 3
cen = 'CEN/3'
else: # pragma: no cover
raise NotImplementedError(f'name={self.element_name} type={self.element_type}')
return msg, nnodes, cen
[docs]
def set_element_node_fiber_case(cls, data_code, is_sort1, isubcase,
nnodes, element_node, fiber_distance, data, times):
assert element_node.ndim == 2, element_node.shape
assert element_node.shape[1] == 2, element_node.shape
assert fiber_distance.ndim == 1, fiber_distance.shape
assert element_node[:, 0].min() > 0, element_node
assert element_node[:, 1].min() == 0, element_node
ntimes = data.shape[0]
nlayers = data.shape[1]
dt = times[0]
obj = cls(data_code, is_sort1, isubcase, dt)
obj.element_node = element_node
obj.fiber_distance = fiber_distance
obj.data = data
#fiber_dist, oxx, oyy, txy, angle, majorP, minorP, ovm
#assert data.shape[2] == 8, data.shape
# nlayers: includes all plies
# assumed 2 layers per node
# a CTRIA3 has 1 node; a CQUAD4-144 has 4+1=5 nodes (centroid is included)
# nelements should be the *actual* number of elements, not the size of element_node
#
# TODO: element_node should not contain duplicates?
nelements = nlayers // (nnodes * 2)
assert nelements >= 1, nelements
obj.ntimes = ntimes
obj.ntotal = nnodes
obj.nelements = nelements
obj._times = times
obj.nnodes = nnodes
#obj.update_data_components()
return obj