Source code for pyNastran.op2.tables.oes_stressStrain.real.oes_shear

from struct import Struct, pack
import inspect
from typing import List

import numpy as np
from numpy import zeros, allclose

from pyNastran.op2.result_objects.op2_objects import get_times_dtype
from pyNastran.op2.tables.oes_stressStrain.real.oes_objects import StressObject, StrainObject, OES_Object
from pyNastran.f06.f06_formatting import _eigenvalue_header #, get_key0


[docs]class RealShearArray(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.nelements = 0 # result specific #if is_sort1: #self.add_new_eid = self.add_new_eid_sort1 #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: return 1 def _reset_indices(self) -> None: self.itotal = 0 self.ielement = 0 def _get_msgs(self): raise NotImplementedError()
[docs] def get_headers(self): raise NotImplementedError()
[docs] def build(self): """sizes the vectorized attributes of the RealShearArray""" #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 #self.names = [] self.nelements //= self.ntimes self.itime = 0 self.ielement = 0 self.itotal = 0 #self.ntimes = 0 #self.nelements = 0 #print("ntimes=%s nelements=%s ntotal=%s" % (self.ntimes, self.nelements, self.ntotal)) dtype, idtype, fdtype = get_times_dtype(self.nonlinear_factor, self.size, self.analysis_fmt) _times = zeros(self.ntimes, dtype=dtype) element = zeros(self.nelements, dtype='int32') # [max_shear, avg_shear, margin] data = zeros((self.ntimes, self.ntotal, 3), dtype='float32') 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 = group.create_dataset('element', data=element) self.data = group.create_dataset('data', data=data) else: self._times = _times self.element = element self.data = data
[docs] def build_dataframe(self): """creates a pandas dataframe""" import pandas as pd headers = self.get_headers() 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 Item #22 max_shear 8.050749e-13 5.871460e-07 2.035239e-12 # avg_shear -8.050749e-13 5.871460e-07 2.035239e-12 # margin 1.401298e-45 1.401298e-45 1.401298e-45 column_names, column_values = self._build_dataframe_transient_header() data_frame = self._build_pandas_transient_elements( column_values, column_names, headers, self.element, self.data) else: #Static axial SMa torsion SMt #ElementID #14 0.0 1.401298e-45 0.0 1.401298e-45 #15 0.0 1.401298e-45 0.0 1.401298e-45 data_frame = pd.DataFrame(self.data[0], columns=headers, index=self.element) data_frame.index.name = 'ElementID' data_frame.columns.names = ['Static'] self.data_frame = data_frame
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()) ntimes = self.data.shape[0] i = 0 if self.is_sort1: for itime in range(ntimes): for ieid, eid, in enumerate(self.element): t1 = self.data[itime, ieid, :] t2 = table.data[itime, ieid, :] (max_shear, avg_shear, margin) = t1 (max_shear2, avg_shear2, margin2) = t2 if not allclose(t1, t2): #if not np.array_equal(t1, t2): msg += '%s\n (%s, %s, %s)\n (%s, %s, %s)\n' % ( eid, max_shear, avg_shear, margin, max_shear2, avg_shear2, margin2) i += 1 if i > 10: print(msg) raise ValueError(msg) else: raise NotImplementedError(self.is_sort2) if i > 0: print(msg) raise ValueError(msg) return True def add_sort1(self, dt, eid, max_shear, avg_shear, margin): """ ELEMENT MAX AVG SAFETY ELEMENT MAX AVG SAFETY ID. SHEAR SHEAR MARGIN ID. SHEAR SHEAR MARGIN 328 1.721350E+03 1.570314E+03 7.2E+01 """ self._times[self.itime] = dt self.element[self.ielement] = eid self.data[self.itime, self.ielement, :] = [max_shear, avg_shear, margin] self.ielement += 1
[docs] def get_stats(self, short: bool=False) -> List[str]: if not self.is_built: return [ '<%s>\n' % self.__class__.__name__, f' ntimes: {self.ntimes:d}\n', f' ntotal: {self.ntotal:d}\n', ] nelements = self.nelements ntimes = self.ntimes #ntotal = self.ntotal msg = [] if self.nonlinear_factor not in (None, np.nan): # transient msg.append(' type=%s ntimes=%i nelements=%i\n' % (self.__class__.__name__, ntimes, nelements)) ntimes_word = 'ntimes' else: msg.append(' type=%s nelements=%i\n' % (self.__class__.__name__, nelements)) ntimes_word = '1' msg.append(' eType\n') headers = self.get_headers() n = len(headers) msg.append(' data: [%s, nnodes, %i] where %i=[%s]\n' % (ntimes_word, n, n, str(', '.join(headers)))) msg.append(f' element.shape = {self.element.shape}\n') msg.append(f' data.shape = {self.data.shape}\n') msg.append(f' element type: {self.element_name}-{self.element_type}\n') msg += self.get_data_code() return msg
[docs] def get_f06_header(self): raise NotImplementedError('CSHEAR...')
[docs] def write_f06(self, f06_file, 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_temp = self.get_f06_header() # write the f06 ntimes = self.data.shape[0] eids = self.element is_odd = False nwrite = len(eids) if len(eids) % 2 == 1: nwrite -= 1 is_odd = True for itime in range(ntimes): dt = self._times[itime] # TODO: rename this... header = _eigenvalue_header(self, header, itime, ntimes, dt) f06_file.write(''.join(header + msg_temp)) #print("self.data.shape=%s itime=%s ieids=%s" % (str(self.data.shape), itime, str(ieids))) max_shear = self.data[itime, :, 0] avg_shear = self.data[itime, :, 1] margin = self.data[itime, :, 2] out = [] for eid, max_sheari, avg_sheari, margini in zip(eids, max_shear, avg_shear, margin): #[max_sheari, avg_sheari, margini] = write_floats_13e([max_sheari, avg_sheari, margini]) out.append([eid, max_sheari, avg_sheari, margini]) for i in range(0, nwrite, 2): f06_file.write(' %8i %13s %10.4E %13s %8i %13s %10.4E %s\n' % ( tuple(out[i] + out[i + 1]))) if is_odd: f06_file.write(' %8i %13s %10.4E %s\n' % tuple(out[-1])) f06_file.write(page_stamp % page_num) page_num += 1 return page_num - 1
[docs] def write_op2(self, op2_file, op2_ascii, itable, new_result, date, is_mag_phase=False, endian='>'): """writes an OP2""" 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 #if isinstance(self.nonlinear_factor, float): #op2_format = '%sif' % (7 * self.ntimes) #raise NotImplementedError() #else: #op2_format = 'i21f' #s = Struct(op2_format) unused_eids = self.element # table 4 info #ntimes = self.data.shape[0] #nnodes = self.data.shape[1] nelements = self.data.shape[1] # 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 #print('shape = %s' % str(self.data.shape)) #assert self.ntimes == 1, self.ntimes op2_ascii.write(f' ntimes = {self.ntimes}\n') eids = self.element eids_device = self.element * 10 + self.device_code #fmt = '%2i %6f' #print('ntotal=%s' % (ntotal)) #assert ntotal == 193, ntotal if not self.is_sort1: raise NotImplementedError('SORT2') struct1 = Struct(endian + b'i 3f') fdtype = self.data.dtype if self.size == 4: pass else: print(f'downcasting {self.class_name}...') #idtype = np.int32(1) fdtype = np.float32(1.0) # [eid, max_shear, avg_shear, margin] data_out = np.empty((nelements, 4), dtype=fdtype) data_out[:, 0] = eids_device.view(fdtype) op2_ascii.write(f'nelements={nelements:d}\n') for itime in range(self.ntimes): #print('3, %s' % itable) self._write_table_3(op2_file, op2_ascii, new_result, itable, itime) # record 4 #print('stress itable = %s' % itable) itable -= 1 #print('4, %s' % itable) header = [4, itable, 4, 4, 1, 4, 4, 0, 4, 4, ntotal, 4, 4 * ntotal] op2_file.write(pack('%ii' % len(header), *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') # [eid, max_shear, avg_shear, margin] data_out[:, 1:] = self.data[itime, :, :] op2_file.write(data_out) itable -= 1 header = [4 * ntotal,] op2_file.write(pack('i', *header)) op2_ascii.write('footer = %s\n' % header) new_result = False return itable
[docs]class RealShearStressArray(RealShearArray, StressObject): def __init__(self, data_code, is_sort1, isubcase, dt): RealShearArray.__init__(self, data_code, is_sort1, isubcase, dt) StressObject.__init__(self, data_code, isubcase)
[docs] def get_headers(self) -> List[str]: headers = ['max_shear', 'avg_shear', 'margin'] return headers
[docs] def get_f06_header(self): msg = [ ' S T R E S S E S I N S H E A R P A N E L S ( C S H E A R )\n' ' ELEMENT MAX AVG SAFETY ELEMENT MAX AVG SAFETY\n' ' ID. SHEAR SHEAR MARGIN ID. SHEAR SHEAR MARGIN\n' #' 328 1.721350E+03 1.570314E+03 7.2E+01' ] return msg
[docs]class RealShearStrainArray(RealShearArray, StrainObject): def __init__(self, data_code, is_sort1, isubcase, dt): RealShearArray.__init__(self, data_code, is_sort1, isubcase, dt) StrainObject.__init__(self, data_code, isubcase)
[docs] def get_headers(self) -> List[str]: headers = ['max_shear', 'avg_shear', 'margin'] return headers
[docs] def get_f06_header(self): msg = [ ' S T R A I N S I N S H E A R P A N E L S ( C S H E A R )\n' ' ELEMENT MAX AVG SAFETY ELEMENT MAX AVG SAFETY\n' ' ID. SHEAR SHEAR MARGIN ID. SHEAR SHEAR MARGIN\n' #' 328 1.721350E+03 1.570314E+03 7.2E+01' ] return msg