328 lines
11 KiB
Python
328 lines
11 KiB
Python
import numpy as np
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from . import Config
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from . import Rotation
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from . import Orientation
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class ConfigMaterial(Config):
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"""Material configuration."""
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_defaults = {'material': [],
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'homogenization': {},
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'phase': {}}
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def __init__(self,d=_defaults):
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"""Initialize object with default dictionary keys."""
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super().__init__(d)
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def save(self,fname='material.yaml',**kwargs):
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"""
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Save to yaml file.
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Parameters
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----------
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fname : file, str, or pathlib.Path, optional
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Filename or file for writing. Defaults to 'material.yaml'.
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**kwargs
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Keyword arguments parsed to yaml.dump.
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"""
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super().save(fname,**kwargs)
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@classmethod
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def load(cls,fname='material.yaml'):
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"""
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Load from yaml file.
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Parameters
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----------
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fname : file, str, or pathlib.Path, optional
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Filename or file for writing. Defaults to 'material.yaml'.
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"""
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return super(ConfigMaterial,cls).load(fname)
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@staticmethod
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def from_table(table,constituents={},**kwargs):
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"""
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Load from an ASCII table.
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Parameters
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----------
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table : damask.Table
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Table that contains material information.
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constituents : dict, optional
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Entries for 'constituents'. The key is the name and the value specifies
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the label of the data column in the table
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**kwargs
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Keyword arguments where the key is the name and the value specifies
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the label of the data column in the table
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Examples
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--------
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>>> import damask
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>>> import damask.ConfigMaterial as cm
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>>> t = damask.Table.load('small.txt')
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>>> t
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pos pos pos qu qu qu qu phase homog
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0 0 0 0 0.19 0.8 0.24 -0.51 Aluminum SX
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1 1 0 0 0.8 0.19 0.24 -0.51 Steel SX
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>>> cm.from_table(t,{'O':'qu','phase':'phase'},homogenization='homog')
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material:
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- constituents:
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- O: [0.19, 0.8, 0.24, -0.51]
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fraction: 1.0
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phase: Aluminum
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homogenization: SX
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- constituents:
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- O: [0.8, 0.19, 0.24, -0.51]
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fraction: 1.0
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phase: Steel
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homogenization: SX
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homogenization: {}
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phase: {}
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"""
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constituents_ = {k:table.get(v) for k,v in constituents.items()}
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kwargs_ = {k:table.get(v) for k,v in kwargs.items()}
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_,idx = np.unique(np.hstack(list({**constituents_,**kwargs_}.values())),return_index=True,axis=0)
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idx = np.sort(idx)
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constituents_ = {k:np.atleast_1d(v[idx].squeeze()) for k,v in constituents_.items()}
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kwargs_ = {k:np.atleast_1d(v[idx].squeeze()) for k,v in kwargs_.items()}
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return ConfigMaterial().material_add(constituents_,**kwargs_)
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@property
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def is_complete(self):
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"""Check for completeness."""
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ok = True
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for top_level in ['homogenization','phase','material']:
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# ToDo: With python 3.8 as prerequisite we can shorten with :=
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ok &= top_level in self
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if top_level not in self: print(f'{top_level} entry missing')
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if ok:
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ok &= len(self['material']) > 0
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if len(self['material']) < 1: print('Incomplete material definition')
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if ok:
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homogenization = set()
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phase = set()
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for i,v in enumerate(self['material']):
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if 'homogenization' in v:
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homogenization.add(v['homogenization'])
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else:
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print(f'No homogenization specified in material {i}')
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ok = False
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if 'constituents' in v:
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for ii,vv in enumerate(v['constituents']):
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if 'O' not in vv:
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print('No orientation specified in constituent {ii} of material {i}')
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ok = False
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if 'phase' in vv:
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phase.add(vv['phase'])
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else:
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print(f'No phase specified in constituent {ii} of material {i}')
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ok = False
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for k,v in self['phase'].items():
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if 'lattice' not in v:
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print(f'No lattice specified in phase {k}')
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ok = False
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for k,v in self['homogenization'].items():
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if 'N_constituents' not in v:
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print(f'No. of constituents not specified in homogenization {k}')
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ok = False
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if phase - set(self['phase']):
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print(f'Phase(s) {phase-set(self["phase"])} missing')
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ok = False
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if homogenization - set(self['homogenization']):
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print(f'Homogenization(s) {homogenization-set(self["homogenization"])} missing')
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ok = False
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return ok
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@property
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def is_valid(self):
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"""Check for valid file layout."""
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ok = True
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if 'phase' in self:
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for k,v in self['phase'].items():
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if 'lattice' in v:
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try:
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Orientation(lattice=v['lattice'])
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except KeyError:
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s = v['lattice']
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print(f"Invalid lattice: '{s}' in phase '{k}'")
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ok = False
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if 'material' in self:
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for i,v in enumerate(self['material']):
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if 'constituents' in v:
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f = 0.0
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for c in v['constituents']:
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f+= float(c['fraction'])
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if 'O' in c:
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try:
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Rotation.from_quaternion(c['O'])
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except ValueError:
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o = c['O']
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print(f"Invalid orientation: '{o}' in material '{i}'")
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ok = False
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if not np.isclose(f,1.0):
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print(f"Invalid total fraction '{f}' in material '{i}'")
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ok = False
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return ok
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def material_rename_phase(self,mapping,ID=None,constituent=None):
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"""
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Change phase name in material.
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Parameters
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----------
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mapping: dictionary
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Mapping from old name to new name
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ID: list of ints, optional
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Limit renaming to selected material IDs.
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constituent: list of ints, optional
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Limit renaming to selected constituents.
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"""
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dup = self.copy()
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for i,m in enumerate(dup['material']):
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if ID and i not in ID: continue
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for c in m['constituents']:
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if constituent is not None and c not in constituent: continue
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try:
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c['phase'] = mapping[c['phase']]
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except KeyError:
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continue
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return dup
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def material_rename_homogenization(self,mapping,ID=None):
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"""
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Change homogenization name in material.
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Parameters
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----------
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mapping: dictionary
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Mapping from old name to new name
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ID: list of ints, optional
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Limit renaming to selected homogenization IDs.
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"""
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dup = self.copy()
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for i,m in enumerate(dup['material']):
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if ID and i not in ID: continue
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try:
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m['homogenization'] = mapping[m['homogenization']]
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except KeyError:
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continue
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return dup
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def material_add(self,constituents=None,**kwargs):
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"""
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Add material entries.
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Parameters
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----------
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constituents : dict, optional
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Entries for 'constituents' as key-value pair.
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**kwargs
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Key-value pairs.
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Examples
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--------
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>>> import damask
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>>> O = damask.Rotation.from_random(3).as_quaternion()
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>>> phase = ['Aluminum','Steel','Aluminum']
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>>> m = damask.ConfigMaterial().material_add(constituents={'phase':phase,'O':O},
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... homogenization='SX')
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>>> m
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material:
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- constituents:
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- O: [0.577764, -0.146299, -0.617669, 0.513010]
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fraction: 1.0
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phase: Aluminum
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homogenization: SX
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- constituents:
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- O: [0.184176, 0.340305, 0.737247, 0.553840]
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fraction: 1.0
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phase: Steel
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homogenization: SX
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- constituents:
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- O: [0.0886257, -0.144848, 0.615674, -0.769487]
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fraction: 1.0
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phase: Aluminum
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homogenization: SX
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homogenization: {}
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phase: {}
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"""
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length = -1
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for v in kwargs.values():
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if hasattr(v,'__len__') and not isinstance(v,str):
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if length != -1 and len(v) != length:
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raise ValueError('Cannot add entries of different length')
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else:
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length = len(v)
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length = max(1,length)
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c = [{} for _ in range(length)] if constituents is None else \
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[{'constituents':u} for u in ConfigMaterial._constituents(**constituents)]
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if len(c) == 1: c = [c[0] for _ in range(length)]
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if length != 1 and length != len(c):
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raise ValueError('Cannot add entries of different length')
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for k,v in kwargs.items():
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if hasattr(v,'__len__') and not isinstance(v,str):
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for i,vv in enumerate(v):
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c[i][k] = vv.item() if isinstance(vv,np.generic) else vv
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else:
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for i in range(len(c)):
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c[i][k] = v
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dup = self.copy()
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dup['material'] = dup['material'] + c if 'material' in dup else c
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return dup
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@staticmethod
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def _constituents(N=1,**kwargs):
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"""Construct list of constituents."""
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N_material=1
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for v in kwargs.values():
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if hasattr(v,'__len__') and not isinstance(v,str): N_material = len(v)
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if N == 1:
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m = [[{'fraction':1.0}] for _ in range(N_material)]
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for k,v in kwargs.items():
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if hasattr(v,'__len__') and not isinstance(v,str):
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if len(v) != N_material:
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raise ValueError('Cannot add entries of different length')
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for i,vv in enumerate(np.array(v)):
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m[i][0][k] = vv.item() if isinstance(vv,np.generic) else vv
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else:
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for i in range(N_material):
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m[i][0][k] = v
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return m
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else:
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raise NotImplementedError
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