295 lines
12 KiB
Python
295 lines
12 KiB
Python
import os
|
|
import time
|
|
|
|
import pytest
|
|
import numpy as np
|
|
|
|
from damask import VTK
|
|
from damask import Geom
|
|
from damask import Rotation
|
|
from damask import util
|
|
|
|
|
|
def geom_equal(a,b):
|
|
return np.all(a.get_microstructure() == b.get_microstructure()) and \
|
|
np.all(a.get_grid() == b.get_grid()) and \
|
|
np.allclose(a.get_size(), b.get_size())
|
|
|
|
@pytest.fixture
|
|
def default():
|
|
"""Simple geometry."""
|
|
x=np.concatenate((np.ones(40,dtype=int),
|
|
np.arange(2,42),
|
|
np.ones(40,dtype=int)*2,
|
|
np.arange(1,41))).reshape(8,5,4,order='F')
|
|
return Geom(x,[8e-6,5e-6,4e-6])
|
|
|
|
@pytest.fixture
|
|
def reference_dir(reference_dir_base):
|
|
"""Directory containing reference results."""
|
|
return reference_dir_base/'Geom'
|
|
|
|
|
|
class TestGeom:
|
|
|
|
def test_update(self,default):
|
|
modified = default.copy()
|
|
modified.update(
|
|
default.get_microstructure(),
|
|
default.get_size(),
|
|
default.get_origin()
|
|
)
|
|
print(modified)
|
|
assert geom_equal(modified,default)
|
|
|
|
@pytest.mark.parametrize('masked',[True,False])
|
|
def test_set_microstructure(self,default,masked):
|
|
old = default.get_microstructure()
|
|
new = np.random.randint(200,size=default.grid)
|
|
default.set_microstructure(np.ma.MaskedArray(new,np.full_like(new,masked)))
|
|
assert np.all(default.microstructure==(old if masked else new))
|
|
|
|
|
|
def test_write_read_str(self,default,tmpdir):
|
|
default.to_file(str(tmpdir/'default.geom'))
|
|
new = Geom.from_file(str(tmpdir/'default.geom'))
|
|
assert geom_equal(new,default)
|
|
|
|
def test_write_read_file(self,default,tmpdir):
|
|
with open(tmpdir/'default.geom','w') as f:
|
|
default.to_file(f)
|
|
with open(tmpdir/'default.geom') as f:
|
|
new = Geom.from_file(f)
|
|
assert geom_equal(new,default)
|
|
|
|
def test_write_show(self,default,tmpdir):
|
|
with open(tmpdir/'str.geom','w') as f:
|
|
f.write(default.show())
|
|
with open(tmpdir/'str.geom') as f:
|
|
new = Geom.from_file(f)
|
|
assert geom_equal(new,default)
|
|
|
|
def test_read_write_vtr(self,default,tmpdir):
|
|
default.to_vtr(tmpdir/'default')
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(tmpdir/'default.vtr'): break
|
|
|
|
new = Geom.from_vtr(tmpdir/'default.vtr')
|
|
assert geom_equal(new,default)
|
|
|
|
def test_invalid_vtr(self,tmpdir):
|
|
v = VTK.from_rectilinearGrid(np.random.randint(5,10,3)*2,np.random.random(3) + 1.0)
|
|
v.write(tmpdir/'no_materialpoint.vtr')
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(tmpdir/'no_materialpoint.vtr'): break
|
|
with pytest.raises(ValueError):
|
|
Geom.from_vtr(tmpdir/'no_materialpoint.vtr')
|
|
|
|
|
|
@pytest.mark.parametrize('pack',[True,False])
|
|
def test_pack(self,default,tmpdir,pack):
|
|
default.to_file(tmpdir/'default.geom',pack=pack)
|
|
new = Geom.from_file(tmpdir/'default.geom')
|
|
assert geom_equal(new,default)
|
|
|
|
def test_invalid_combination(self,default):
|
|
with pytest.raises(ValueError):
|
|
default.update(default.microstructure[1:,1:,1:],size=np.ones(3), rescale=True)
|
|
|
|
def test_invalid_size(self,default):
|
|
with pytest.raises(ValueError):
|
|
default.update(default.microstructure[1:,1:,1:],size=np.ones(2))
|
|
|
|
def test_invalid_origin(self,default):
|
|
with pytest.raises(ValueError):
|
|
default.update(default.microstructure[1:,1:,1:],origin=np.ones(4))
|
|
|
|
def test_invalid_microstructure_size(self,default):
|
|
microstructure = np.ones((3,3))
|
|
with pytest.raises(ValueError):
|
|
default.update(microstructure)
|
|
|
|
def test_invalid_microstructure_type(self,default):
|
|
microstructure = np.random.randint(1,300,(3,4,5))==1
|
|
with pytest.raises(TypeError):
|
|
default.update(microstructure)
|
|
|
|
def test_invalid_homogenization(self,default):
|
|
with pytest.raises(TypeError):
|
|
default.set_homogenization(homogenization=0)
|
|
|
|
@pytest.mark.parametrize('directions,reflect',[
|
|
(['x'], False),
|
|
(['x','y','z'],True),
|
|
(['z','x','y'],False),
|
|
(['y','z'], False)
|
|
]
|
|
)
|
|
def test_mirror(self,default,update,reference_dir,directions,reflect):
|
|
modified = default.copy()
|
|
modified.mirror(directions,reflect)
|
|
tag = f'directions={"-".join(directions)}_reflect={reflect}'
|
|
reference = reference_dir/f'mirror_{tag}.geom'
|
|
if update: modified.to_file(reference)
|
|
assert geom_equal(modified,Geom.from_file(reference))
|
|
|
|
@pytest.mark.parametrize('directions',[(1,2,'y'),('a','b','x'),[1]])
|
|
def test_mirror_invalid(self,default,directions):
|
|
with pytest.raises(ValueError):
|
|
default.mirror(directions)
|
|
|
|
@pytest.mark.parametrize('stencil',[1,2,3,4])
|
|
@pytest.mark.parametrize('selection',[None,1,2])
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_clean(self,update,reference_dir,stencil,selection,periodic):
|
|
current = Geom.from_vtr((reference_dir/'clean').with_suffix('.vtr'))
|
|
current.clean(stencil,None if selection is None else [selection],periodic)
|
|
reference = reference_dir/f'clean_{stencil}_{selection}_{periodic}'
|
|
if update and stencil !=1:
|
|
current.to_vtr(reference)
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(reference.with_suffix('.vtr')): break
|
|
assert geom_equal(current,Geom.from_vtr(reference if stencil !=1 else reference_dir/'clean'))
|
|
|
|
@pytest.mark.parametrize('grid',[
|
|
(10,11,10),
|
|
[10,13,10],
|
|
np.array((10,10,10)),
|
|
np.array((8, 10,12)),
|
|
np.array((5, 4, 20)),
|
|
np.array((10,20,2))
|
|
]
|
|
)
|
|
def test_scale(self,default,update,reference_dir,grid):
|
|
modified = default.copy()
|
|
modified.scale(grid)
|
|
tag = f'grid={util.srepr(grid,"-")}'
|
|
reference = reference_dir/f'scale_{tag}.geom'
|
|
if update: modified.to_file(reference)
|
|
assert geom_equal(modified,Geom.from_file(reference))
|
|
|
|
def test_renumber(self,default):
|
|
modified = default.copy()
|
|
microstructure = modified.get_microstructure()
|
|
for m in np.unique(microstructure):
|
|
microstructure[microstructure==m] = microstructure.max() + np.random.randint(1,30)
|
|
modified.update(microstructure)
|
|
assert not geom_equal(modified,default)
|
|
modified.renumber()
|
|
assert geom_equal(modified,default)
|
|
|
|
def test_substitute(self,default):
|
|
modified = default.copy()
|
|
microstructure = modified.get_microstructure()
|
|
offset = np.random.randint(1,500)
|
|
microstructure += offset
|
|
modified.update(microstructure)
|
|
assert not geom_equal(modified,default)
|
|
modified.substitute(np.arange(default.microstructure.max())+1+offset,
|
|
np.arange(default.microstructure.max())+1)
|
|
assert geom_equal(modified,default)
|
|
|
|
@pytest.mark.parametrize('axis_angle',[np.array([1,0,0,86.7]), np.array([0,1,0,90.4]), np.array([0,0,1,90]),
|
|
np.array([1,0,0,175]),np.array([0,-1,0,178]),np.array([0,0,1,180])])
|
|
def test_rotate360(self,default,axis_angle):
|
|
modified = default.copy()
|
|
for i in range(np.rint(360/axis_angle[3]).astype(int)):
|
|
modified.rotate(Rotation.from_axis_angle(axis_angle,degrees=True))
|
|
assert geom_equal(modified,default)
|
|
|
|
@pytest.mark.parametrize('Eulers',[[32.0,68.0,21.0],
|
|
[0.0,32.0,240.0]])
|
|
def test_rotate(self,default,update,reference_dir,Eulers):
|
|
modified = default.copy()
|
|
modified.rotate(Rotation.from_Eulers(Eulers,degrees=True))
|
|
tag = f'Eulers={util.srepr(Eulers,"-")}'
|
|
reference = reference_dir/f'rotate_{tag}.geom'
|
|
if update: modified.to_file(reference)
|
|
assert geom_equal(modified,Geom.from_file(reference))
|
|
|
|
def test_canvas(self,default):
|
|
grid_add = np.random.randint(0,30,(3))
|
|
modified = default.copy()
|
|
modified.canvas(modified.grid + grid_add)
|
|
e = default.grid
|
|
assert np.all(modified.microstructure[:e[0],:e[1],:e[2]] == default.microstructure)
|
|
|
|
@pytest.mark.parametrize('center1,center2',[(np.random.random(3)*.5,np.random.random(3)),
|
|
(np.random.randint(4,8,(3)),np.random.randint(9,12,(3)))])
|
|
@pytest.mark.parametrize('diameter',[np.random.random(3)*.5,
|
|
np.random.randint(4,10,(3))])
|
|
def test_add_primitive(self,diameter,center1,center2):
|
|
"""Same volume fraction for periodic microstructures and different center."""
|
|
o = np.random.random(3)-.5
|
|
g = np.random.randint(8,32,(3))
|
|
s = np.random.random(3)+.5
|
|
G_1 = Geom(np.ones(g,'i'),s,o)
|
|
G_2 = Geom(np.ones(g,'i'),s,o)
|
|
G_1.add_primitive(diameter,center1,1)
|
|
G_2.add_primitive(diameter,center2,1)
|
|
assert np.count_nonzero(G_1.microstructure!=2) == np.count_nonzero(G_2.microstructure!=2)
|
|
|
|
@pytest.mark.parametrize('trigger',[[1],[]])
|
|
def test_vicinity_offset(self,trigger):
|
|
offset = np.random.randint(2,4)
|
|
vicinity = np.random.randint(2,4)
|
|
|
|
g = np.random.randint(28,40,(3))
|
|
m = np.ones(g,'i')
|
|
x = (g*np.random.permutation(np.array([.5,1,1]))).astype('i')
|
|
m[slice(0,x[0]),slice(0,x[1]),slice(0,x[2])] = 2
|
|
m2 = m.copy()
|
|
for i in [0,1,2]:
|
|
m2[(np.roll(m,+vicinity,i)-m)!=0] += offset
|
|
m2[(np.roll(m,-vicinity,i)-m)!=0] += offset
|
|
if len(trigger) > 0:
|
|
m2[m==1] = 1
|
|
|
|
geom = Geom(m,np.random.rand(3))
|
|
geom.vicinity_offset(vicinity,offset,trigger=trigger)
|
|
|
|
assert np.all(m2==geom.microstructure)
|
|
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_vicinity_offset_invariant(self,default,periodic):
|
|
old = default.get_microstructure()
|
|
default.vicinity_offset(trigger=[old.max()+1,old.min()-1])
|
|
assert np.all(old==default.microstructure)
|
|
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_tessellation_approaches(self,periodic):
|
|
grid = np.random.randint(10,20,3)
|
|
size = np.random.random(3) + 1.0
|
|
N_seeds= np.random.randint(10,30)
|
|
seeds = np.random.rand(N_seeds,3) * np.broadcast_to(size,(N_seeds,3))
|
|
Voronoi = Geom.from_Voronoi_tessellation( grid,size,seeds, periodic)
|
|
Laguerre = Geom.from_Laguerre_tessellation(grid,size,seeds,np.ones(N_seeds),periodic)
|
|
assert geom_equal(Laguerre,Voronoi)
|
|
|
|
def test_Laguerre_weights(self):
|
|
grid = np.random.randint(10,20,3)
|
|
size = np.random.random(3) + 1.0
|
|
N_seeds= np.random.randint(10,30)
|
|
seeds = np.random.rand(N_seeds,3) * np.broadcast_to(size,(N_seeds,3))
|
|
weights= np.full((N_seeds),-np.inf)
|
|
ms = np.random.randint(1, N_seeds+1)
|
|
weights[ms-1] = np.random.random()
|
|
Laguerre = Geom.from_Laguerre_tessellation(grid,size,seeds,weights,np.random.random()>0.5)
|
|
assert np.all(Laguerre.microstructure == ms)
|
|
|
|
@pytest.mark.parametrize('approach',['Laguerre','Voronoi'])
|
|
def test_tessellate_bicrystal(self,approach):
|
|
grid = np.random.randint(5,10,3)*2
|
|
size = grid.astype(np.float)
|
|
seeds = np.vstack((size*np.array([0.5,0.25,0.5]),size*np.array([0.5,0.75,0.5])))
|
|
microstructure = np.ones(grid)
|
|
microstructure[:,grid[1]//2:,:] = 2
|
|
if approach == 'Laguerre':
|
|
geom = Geom.from_Laguerre_tessellation(grid,size,seeds,np.ones(2),np.random.random()>0.5)
|
|
elif approach == 'Voronoi':
|
|
geom = Geom.from_Voronoi_tessellation(grid,size,seeds, np.random.random()>0.5)
|
|
assert np.all(geom.microstructure == microstructure)
|