405 lines
17 KiB
Python
405 lines
17 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.material == b.material) and \
|
|
np.all(a.grid == b.grid) and \
|
|
np.allclose(a.size, b.size) and \
|
|
str(a.diff(b)) == str(b.diff(a))
|
|
|
|
@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_diff_equal(self,default):
|
|
assert str(default.diff(default)) == ''
|
|
|
|
|
|
def test_diff_not_equal(self,default):
|
|
new = Geom(default.material[1:,1:,1:]+1,default.size*.9,np.ones(3)-default.origin,comments=['modified'])
|
|
assert str(default.diff(new)) != ''
|
|
|
|
|
|
def test_write_read_str(self,default,tmp_path):
|
|
default.save_ASCII(str(tmp_path/'default.geom'))
|
|
new = Geom.load_ASCII(str(tmp_path/'default.geom'))
|
|
assert geom_equal(default,new)
|
|
|
|
|
|
def test_write_read_file(self,default,tmp_path):
|
|
with open(tmp_path/'default.geom','w') as f:
|
|
default.save_ASCII(f,compress=True)
|
|
with open(tmp_path/'default.geom') as f:
|
|
new = Geom.load_ASCII(f)
|
|
assert geom_equal(default,new)
|
|
|
|
|
|
def test_read_write_vtr(self,default,tmp_path):
|
|
default.save(tmp_path/'default')
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(tmp_path/'default.vtr'): break
|
|
|
|
new = Geom.load(tmp_path/'default.vtr')
|
|
assert geom_equal(new,default)
|
|
|
|
|
|
def test_invalid_geom(self,tmp_path):
|
|
with open(tmp_path/'invalid_file','w') as f:
|
|
f.write('this is not a valid header')
|
|
with open(tmp_path/'invalid_file','r') as f:
|
|
with pytest.raises(TypeError):
|
|
Geom.load_ASCII(f)
|
|
|
|
|
|
def test_invalid_vtr(self,tmp_path):
|
|
v = VTK.from_rectilinearGrid(np.random.randint(5,10,3)*2,np.random.random(3) + 1.0)
|
|
v.save(tmp_path/'no_materialpoint.vtr')
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(tmp_path/'no_materialpoint.vtr'): break
|
|
with pytest.raises(ValueError):
|
|
Geom.load(tmp_path/'no_materialpoint.vtr')
|
|
|
|
def test_invalid_material(self):
|
|
with pytest.raises(TypeError):
|
|
Geom(np.zeros((3,3,3),dtype='complex'),np.ones(3))
|
|
|
|
def test_cast_to_int(self):
|
|
g = Geom(np.zeros((3,3,3)),np.ones(3))
|
|
assert g.material.dtype in np.sctypes['int']
|
|
|
|
@pytest.mark.parametrize('compress',[True,False])
|
|
def test_compress(self,default,tmp_path,compress):
|
|
default.save_ASCII(tmp_path/'default.geom',compress=compress)
|
|
new = Geom.load_ASCII(tmp_path/'default.geom')
|
|
assert geom_equal(new,default)
|
|
|
|
|
|
def test_invalid_size(self,default):
|
|
with pytest.raises(ValueError):
|
|
Geom(default.material[1:,1:,1:],
|
|
size=np.ones(2))
|
|
|
|
|
|
def test_invalid_origin(self,default):
|
|
with pytest.raises(ValueError):
|
|
Geom(default.material[1:,1:,1:],
|
|
size=np.ones(3),
|
|
origin=np.ones(4))
|
|
|
|
|
|
def test_invalid_materials_shape(self,default):
|
|
material = np.ones((3,3))
|
|
with pytest.raises(ValueError):
|
|
Geom(material,
|
|
size=np.ones(3))
|
|
|
|
|
|
def test_invalid_materials_type(self,default):
|
|
material = np.random.randint(1,300,(3,4,5))==1
|
|
with pytest.raises(TypeError):
|
|
Geom(material)
|
|
|
|
|
|
@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.mirror(directions,reflect)
|
|
tag = f'directions={"-".join(directions)}_reflect={reflect}'
|
|
reference = reference_dir/f'mirror_{tag}.geom'
|
|
if update: modified.save_ASCII(reference)
|
|
assert geom_equal(Geom.load_ASCII(reference),
|
|
modified)
|
|
|
|
|
|
@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('directions',[
|
|
['x'],
|
|
['x','y','z'],
|
|
['z','x','y'],
|
|
['y','z'],
|
|
]
|
|
)
|
|
def test_flip(self,default,update,reference_dir,directions):
|
|
modified = default.flip(directions)
|
|
tag = f'directions={"-".join(directions)}'
|
|
reference = reference_dir/f'flip_{tag}.geom'
|
|
if update: modified.save_ASCII(reference)
|
|
assert geom_equal(Geom.load_ASCII(reference),
|
|
modified)
|
|
|
|
|
|
def test_flip_invariant(self,default):
|
|
assert geom_equal(default,default.flip([]))
|
|
|
|
|
|
@pytest.mark.parametrize('direction',[['x'],['x','y']])
|
|
def test_flip_double(self,default,direction):
|
|
assert geom_equal(default,default.flip(direction).flip(direction))
|
|
|
|
|
|
@pytest.mark.parametrize('directions',[(1,2,'y'),('a','b','x'),[1]])
|
|
def test_flip_invalid(self,default,directions):
|
|
with pytest.raises(ValueError):
|
|
default.flip(directions)
|
|
|
|
|
|
@pytest.mark.parametrize('stencil',[1,2,3,4])
|
|
@pytest.mark.parametrize('selection',[None,[1],[1,2,3]])
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_clean(self,default,update,reference_dir,stencil,selection,periodic):
|
|
current = default.clean(stencil,selection,periodic)
|
|
reference = reference_dir/f'clean_{stencil}_{"+".join(map(str,[None] if selection is None else selection))}_{periodic}'
|
|
if update and stencil > 1:
|
|
current.save(reference)
|
|
for _ in range(10):
|
|
time.sleep(.2)
|
|
if os.path.exists(reference.with_suffix('.vtr')): break
|
|
assert geom_equal(Geom.load(reference) if stencil > 1 else default,
|
|
current
|
|
)
|
|
|
|
|
|
@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.scale(grid)
|
|
tag = f'grid={util.srepr(grid,"-")}'
|
|
reference = reference_dir/f'scale_{tag}.geom'
|
|
if update: modified.save_ASCII(reference)
|
|
assert geom_equal(Geom.load_ASCII(reference),
|
|
modified)
|
|
|
|
|
|
def test_renumber(self,default):
|
|
material = default.material.copy()
|
|
for m in np.unique(material):
|
|
material[material==m] = material.max() + np.random.randint(1,30)
|
|
modified = Geom(material,
|
|
default.size,
|
|
default.origin)
|
|
assert not geom_equal(modified,default)
|
|
assert geom_equal(default,
|
|
modified.renumber())
|
|
|
|
|
|
def test_substitute(self,default):
|
|
offset = np.random.randint(1,500)
|
|
modified = Geom(default.material + offset,
|
|
default.size,
|
|
default.origin)
|
|
assert not geom_equal(modified,default)
|
|
assert geom_equal(default,
|
|
modified.substitute(np.arange(default.material.max())+1+offset,
|
|
np.arange(default.material.max())+1))
|
|
|
|
|
|
@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(default,modified)
|
|
|
|
|
|
@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.rotate(Rotation.from_Eulers(Eulers,degrees=True))
|
|
tag = f'Eulers={util.srepr(Eulers,"-")}'
|
|
reference = reference_dir/f'rotate_{tag}.geom'
|
|
if update: modified.save_ASCII(reference)
|
|
assert geom_equal(Geom.load_ASCII(reference),
|
|
modified)
|
|
|
|
|
|
def test_canvas(self,default):
|
|
grid = default.grid
|
|
grid_add = np.random.randint(0,30,(3))
|
|
modified = default.canvas(grid + grid_add)
|
|
assert np.all(modified.material[:grid[0],:grid[1],:grid[2]] == default.material)
|
|
|
|
|
|
@pytest.mark.parametrize('center1,center2',[(np.random.random(3)*.5,np.random.random()*8),
|
|
(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)),
|
|
np.random.rand(),
|
|
np.random.randint(30)])
|
|
@pytest.mark.parametrize('exponent',[np.random.random(3)*.5,
|
|
np.random.randint(4,10,(3)),
|
|
np.random.rand()*4,
|
|
np.random.randint(20)])
|
|
def test_add_primitive_shift(self,center1,center2,diameter,exponent):
|
|
"""Same volume fraction for periodic geometries 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).add_primitive(diameter,center1,exponent)
|
|
G_2 = Geom(np.ones(g,'i'),s,o).add_primitive(diameter,center2,exponent)
|
|
assert np.count_nonzero(G_1.material!=2) == np.count_nonzero(G_2.material!=2)
|
|
|
|
|
|
@pytest.mark.parametrize('center',[np.random.randint(4,10,(3)),
|
|
np.random.randint(2,10),
|
|
np.random.rand()*4,
|
|
np.random.rand(3)*10])
|
|
@pytest.mark.parametrize('inverse',[True,False])
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_add_primitive_rotation(self,center,inverse,periodic):
|
|
"""Rotation should not change result for sphere (except for discretization errors)."""
|
|
g = np.array([32,32,32])
|
|
fill = np.random.randint(10)+2
|
|
eu=np.array([np.random.randint(4),np.random.randint(2),np.random.randint(4)])*.5*np.pi
|
|
G_1 = Geom(np.ones(g,'i'),[1.,1.,1.]).add_primitive(.3,center,1,fill,inverse=inverse,periodic=periodic)
|
|
G_2 = Geom(np.ones(g,'i'),[1.,1.,1.]).add_primitive(.3,center,1,fill,Rotation.from_Eulers(eu),inverse,periodic=periodic)
|
|
assert geom_equal(G_1,G_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)).vicinity_offset(vicinity,offset,trigger=trigger)
|
|
|
|
assert np.all(m2==geom.material)
|
|
|
|
|
|
@pytest.mark.parametrize('periodic',[True,False])
|
|
def test_vicinity_offset_invariant(self,default,periodic):
|
|
offset = default.vicinity_offset(trigger=[default.material.max()+1,
|
|
default.material.min()-1])
|
|
assert np.all(offset.material==default.material)
|
|
|
|
|
|
@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, np.arange(N_seeds)+5,periodic)
|
|
Laguerre = Geom.from_Laguerre_tessellation(grid,size,seeds,np.ones(N_seeds),np.arange(N_seeds)+5,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,periodic=np.random.random()>0.5)
|
|
assert np.all(Laguerre.material == 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])))
|
|
material = np.ones(grid)
|
|
material[:,grid[1]//2:,:] = 2
|
|
if approach == 'Laguerre':
|
|
geom = Geom.from_Laguerre_tessellation(grid,size,seeds,np.ones(2),periodic=np.random.random()>0.5)
|
|
elif approach == 'Voronoi':
|
|
geom = Geom.from_Voronoi_tessellation(grid,size,seeds, periodic=np.random.random()>0.5)
|
|
assert np.all(geom.material == material)
|
|
|
|
|
|
@pytest.mark.parametrize('surface',['Schwarz P',
|
|
'Double Primitive',
|
|
'Schwarz D',
|
|
'Complementary D',
|
|
'Double Diamond',
|
|
'Dprime',
|
|
'Gyroid',
|
|
'Gprime',
|
|
'Karcher K',
|
|
'Lidinoid',
|
|
'Neovius',
|
|
'Fisher-Koch S',
|
|
])
|
|
def test_minimal_surface_basic_properties(self,surface):
|
|
grid = np.random.randint(60,100,3)
|
|
size = np.ones(3)+np.random.rand(3)
|
|
threshold = np.random.rand()-.5
|
|
periods = np.random.randint(2)+1
|
|
materials = np.random.randint(0,40,2)
|
|
geom = Geom.from_minimal_surface(grid,size,surface,threshold,periods,materials)
|
|
assert geom.material.max() == materials.max() and geom.material.min() == materials.min() \
|
|
and (geom.size == size).all() and (geom.grid == grid).all()
|
|
|
|
@pytest.mark.parametrize('surface,threshold',[('Schwarz P',0),
|
|
('Double Primitive',-1./6.),
|
|
('Schwarz D',0),
|
|
('Complementary D',0),
|
|
('Double Diamond',-0.133),
|
|
('Dprime',-0.0395),
|
|
('Gyroid',0),
|
|
('Gprime',0.22913),
|
|
('Karcher K',0.17045),
|
|
('Lidinoid',0.14455),
|
|
('Neovius',0),
|
|
('Fisher-Koch S',0),
|
|
])
|
|
def test_minimal_surface_volume(self,surface,threshold):
|
|
grid = np.ones(3,dtype=int)*64
|
|
geom = Geom.from_minimal_surface(grid,np.ones(3),surface,threshold)
|
|
assert np.isclose(np.count_nonzero(geom.material==1)/np.prod(geom.grid),.5,rtol=1e-3)
|