77 lines
3.2 KiB
Python
77 lines
3.2 KiB
Python
import os
|
|
from itertools import permutations
|
|
|
|
import pytest
|
|
import numpy as np
|
|
|
|
import damask
|
|
from damask import Rotation
|
|
from damask import Orientation
|
|
from damask import Lattice
|
|
|
|
n = 1000
|
|
|
|
def IPF_color(orientation,direction):
|
|
"""TSL color of inverse pole figure for given axis (non-vectorized)."""
|
|
for o in orientation.equivalent:
|
|
pole = o.rotation@direction
|
|
inSST,color = orientation.lattice.in_SST(pole,color=True)
|
|
if inSST: break
|
|
|
|
return color
|
|
|
|
@pytest.fixture
|
|
def reference_dir(reference_dir_base):
|
|
"""Directory containing reference results."""
|
|
return os.path.join(reference_dir_base,'Rotation')
|
|
|
|
|
|
class TestOrientation:
|
|
|
|
@pytest.mark.parametrize('color',[{'label':'red', 'RGB':[1,0,0],'direction':[0,0,1]},
|
|
{'label':'green','RGB':[0,1,0],'direction':[0,1,1]},
|
|
{'label':'blue', 'RGB':[0,0,1],'direction':[1,1,1]}])
|
|
@pytest.mark.parametrize('lattice',['fcc','bcc'])
|
|
def test_IPF_cubic(self,color,lattice):
|
|
cube = damask.Orientation(damask.Rotation(),lattice)
|
|
for direction in set(permutations(np.array(color['direction']))):
|
|
assert np.allclose(cube.IPF_color(np.array(direction)),np.array(color['RGB']))
|
|
|
|
@pytest.mark.parametrize('lattice',Lattice.lattices)
|
|
def test_IPF_equivalent(self,set_of_quaternions,lattice):
|
|
direction = np.random.random(3)*2.0-1
|
|
for ori in Orientation(Rotation(set_of_quaternions),lattice)[200]:
|
|
color = ori.IPF_color(direction)
|
|
for equivalent in ori.equivalent:
|
|
assert np.allclose(color,equivalent.IPF_color(direction))
|
|
|
|
|
|
@pytest.mark.parametrize('lattice',Lattice.lattices)
|
|
def test_IPF_vectorize(self,set_of_quaternions,lattice):
|
|
for ori in Orientation(Rotation(set_of_quaternions),lattice)[200]:
|
|
direction = np.random.random(3)*2.0-1
|
|
assert np.allclose(ori.IPF_color(direction),IPF_color(ori,direction))
|
|
|
|
|
|
@pytest.mark.parametrize('model',['Bain','KS','GT','GT_prime','NW','Pitsch'])
|
|
@pytest.mark.parametrize('lattice',['fcc','bcc'])
|
|
def test_relationship_forward_backward(self,model,lattice):
|
|
ori = Orientation(Rotation.from_random(),lattice)
|
|
for i,r in enumerate(ori.relatedOrientations(model)):
|
|
ori2 = r.relatedOrientations(model)[i]
|
|
misorientation = ori.rotation.misorientation(ori2.rotation)
|
|
assert misorientation.asAxisAngle(degrees=True)[3]<1.0e-5
|
|
|
|
@pytest.mark.parametrize('model',['Bain','KS','GT','GT_prime','NW','Pitsch'])
|
|
@pytest.mark.parametrize('lattice',['fcc','bcc'])
|
|
def test_relationship_reference(self,update,reference_dir,model,lattice):
|
|
reference = os.path.join(reference_dir,'{}_{}.txt'.format(lattice,model))
|
|
ori = Orientation(Rotation(),lattice)
|
|
eu = np.array([o.rotation.as_Eulers(degrees=True) for o in ori.relatedOrientations(model)])
|
|
if update:
|
|
coords = np.array([(1,i+1) for i,x in enumerate(eu)])
|
|
table = damask.Table(eu,{'Eulers':(3,)})
|
|
table.add('pos',coords)
|
|
table.to_ASCII(reference)
|
|
assert np.allclose(eu,damask.Table.from_ASCII(reference).get('Eulers'))
|