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test_maps.py
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test_maps.py
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import numpy as np
import unittest
from SimPEG import Mesh, Maps, Models, Utils
import inspect
TOL = 1e-14
np.random.seed(121)
MAPS_TO_EXCLUDE_2D = [
"ComboMap", "ActiveCells", "InjectActiveCells",
"LogMap", "ReciprocalMap",
"Surject2Dto3D", "Map2Dto3D", "Mesh2Mesh",
"ParametricPolyMap", "PolyMap", "ParametricSplineMap",
"SplineMap", "BaseParametric", "ParametricBlock",
"ParametricCasingAndLayer",
"ParametricLayer", "ParametricBlockInLayer",
"Projection", "SelfConsistentEffectiveMedium"
]
MAPS_TO_EXCLUDE_3D = [
"ComboMap", "ActiveCells", "InjectActiveCells",
"LogMap", "ReciprocalMap",
"CircleMap", "ParametricCircleMap", "Mesh2Mesh",
"BaseParametric", "ParametricBlock",
"ParametricPolyMap", "PolyMap", "ParametricSplineMap",
"SplineMap", "ParametricCasingAndLayer",
"ParametricLayer", "ParametricBlockInLayer",
"Projection", "SelfConsistentEffectiveMedium"
]
class MapTests(unittest.TestCase):
def setUp(self):
maps2test2D = [M for M in dir(Maps) if M not in MAPS_TO_EXCLUDE_2D]
maps2test3D = [M for M in dir(Maps) if M not in MAPS_TO_EXCLUDE_3D]
self.maps2test2D = [getattr(Maps, M) for M in maps2test2D if
(inspect.isclass(getattr(Maps, M)) and
issubclass(getattr(Maps, M), Maps.IdentityMap))]
self.maps2test3D = [getattr(Maps, M) for M in maps2test3D if
inspect.isclass(getattr(Maps, M)) and
issubclass(getattr(Maps, M), Maps.IdentityMap)]
a = np.array([1, 1, 1])
b = np.array([1, 2])
self.mesh2 = Mesh.TensorMesh([a, b], x0=np.array([3, 5]))
self.mesh3 = Mesh.TensorMesh([a, b, [3, 4]], x0=np.array([3, 5, 2]))
self.mesh22 = Mesh.TensorMesh([b, a], x0=np.array([3, 5]))
self.meshCyl = Mesh.CylMesh([10., 1., 10.], x0='00C')
def test_transforms2D(self):
for M in self.maps2test2D:
self.assertTrue(M(self.mesh2).test())
def test_transforms2Dvec(self):
for M in self.maps2test2D:
self.assertTrue(M(self.mesh2).testVec())
def test_transforms3D(self):
for M in self.maps2test3D:
self.assertTrue(M(self.mesh3).test())
def test_transforms3Dvec(self):
for M in self.maps2test3D:
self.assertTrue(M(self.mesh3).testVec())
def test_invtransforms2D(self):
for M in self.maps2test2D:
print('Testing Inverse {0}'.format(str(M.__name__)))
mapping = M(self.mesh2)
d = np.random.rand(mapping.shape[0])
try:
m = mapping.inverse(d)
print('Testing Inverse {0}'.format(str(M.__name__)))
self.assertLess(np.linalg.norm(d - mapping._transform(m)), TOL)
print(' ... ok\n')
except NotImplementedError:
pass
def test_invtransforms3D(self):
for M in self.maps2test3D:
print('Testing Inverse {0}'.format(str(M.__name__)))
mapping = M(self.mesh3)
d = np.random.rand(mapping.shape[0])
try:
m = mapping.inverse(d)
print('Testing Inverse {0}'.format(str(M.__name__)))
self.assertLess(np.linalg.norm(d - mapping._transform(m)), TOL)
print(' ... ok\n')
except NotImplementedError:
pass
def test_ParametricCasingAndLayer(self):
mapping = Maps.ParametricCasingAndLayer(self.meshCyl)
m = np.r_[-2., 1., 6., 2., -0.1, 0.2, 0.5, 0.2, -0.2, 0.2]
self.assertTrue(mapping.test(m))
def test_ParametricBlock2D(self):
mesh = Mesh.TensorMesh(
[np.ones(30), np.ones(20)], x0=np.array([-15, -5])
)
mapping = Maps.ParametricBlock(mesh)
# val_background,val_block, block_x0, block_dx, block_y0, block_dy
m = np.r_[-2., 1., -5, 10, 5, 4]
self.assertTrue(mapping.test(m))
def test_transforms_logMap_reciprocalMap(self):
# Note that log/reciprocal maps can be kinda finicky, so we are being
# explicit about the random seed.
v2 = np.r_[0.40077291, 0.1441044, 0.58452314, 0.96323738, 0.01198519,
0.79754415]
dv2 = np.r_[0.80653921, 0.13132446, 0.4901117, 0.03358737, 0.65473762,
0.44252488]
v3 = np.r_[0.96084865, 0.34385186, 0.39430044, 0.81671285, 0.65929109,
0.2235217, 0.87897526, 0.5784033, 0.96876393, 0.63535864,
0.84130763, 0.22123854]
dv3 = np.r_[0.96827838, 0.26072111, 0.45090749, 0.10573893,
0.65276365, 0.15646586, 0.51679682, 0.23071984,
0.95106218, 0.14201845, 0.25093564, 0.3732866]
maps = Maps.LogMap(self.mesh2)
self.assertTrue(maps.test(v2, dx=dv2))
maps = Maps.LogMap(self.mesh3)
self.assertTrue(maps.test(v3, dx=dv3))
maps = Maps.ReciprocalMap(self.mesh2)
self.assertTrue(maps.test(v2, dx=dv2))
maps = Maps.ReciprocalMap(self.mesh3)
self.assertTrue(maps.test(v3, dx=dv3))
def test_Mesh2MeshMap(self):
maps = Maps.Mesh2Mesh([self.mesh22, self.mesh2])
self.assertTrue(maps.test())
def test_Mesh2MeshMapVec(self):
maps = Maps.Mesh2Mesh([self.mesh22, self.mesh2])
self.assertTrue(maps.testVec())
def test_mapMultiplication(self):
M = Mesh.TensorMesh([2, 3])
expMap = Maps.ExpMap(M)
vertMap = Maps.SurjectVertical1D(M)
combo = expMap*vertMap
m = np.arange(3.0)
t_true = np.exp(np.r_[0, 0, 1, 1, 2, 2.])
self.assertLess(np.linalg.norm((combo * m) - t_true, np.inf), TOL)
self.assertLess(np.linalg.norm((expMap * vertMap * m)-t_true, np.inf),
TOL)
self.assertLess(np.linalg.norm(expMap * (vertMap * m)-t_true, np.inf),
TOL)
self.assertLess(np.linalg.norm((expMap * vertMap) * m-t_true, np.inf),
TOL)
# Try making a model
mod = Models.Model(m, mapping=combo)
# print mod.transform
# import matplotlib.pyplot as plt
# plt.colorbar(M.plotImage(mod.transform)[0])
# plt.show()
self.assertLess(np.linalg.norm(mod.transform - t_true, np.inf), TOL)
self.assertRaises(Exception, Models.Model, np.r_[1.0], mapping=combo)
self.assertRaises(ValueError, lambda: combo * (vertMap * expMap))
self.assertRaises(ValueError, lambda: (combo * vertMap) * expMap)
self.assertRaises(ValueError, lambda: vertMap * expMap)
self.assertRaises(ValueError, lambda: expMap * np.ones(100))
self.assertRaises(ValueError, lambda: expMap * np.ones((100, 1)))
self.assertRaises(ValueError, lambda: expMap * np.ones((100, 5)))
self.assertRaises(ValueError, lambda: combo * np.ones(100))
self.assertRaises(ValueError, lambda: combo * np.ones((100, 1)))
self.assertRaises(ValueError, lambda: combo * np.ones((100, 5)))
def test_activeCells(self):
M = Mesh.TensorMesh([2, 4], '0C')
for actMap in [Maps.InjectActiveCells(M, M.vectorCCy <= 0, 10,
nC=M.nCy), Maps.ActiveCells(M, M.vectorCCy <= 0, 10,
nC=M.nCy)]:
vertMap = Maps.SurjectVertical1D(M)
combo = vertMap * actMap
m = np.r_[1., 2.]
mod = Models.Model(m, combo)
self.assertLess(np.linalg.norm(mod.transform -
np.r_[1, 1, 2, 2, 10, 10, 10, 10.]), TOL)
self.assertLess((mod.transformDeriv -
combo.deriv(m)).toarray().sum(), TOL)
def test_tripleMultiply(self):
M = Mesh.TensorMesh([2, 4], '0C')
expMap = Maps.ExpMap(M)
vertMap = Maps.SurjectVertical1D(M)
actMap = Maps.InjectActiveCells(M, M.vectorCCy <= 0, 10, nC=M.nCy)
m = np.r_[1., 2.]
t_true = np.exp(np.r_[1, 1, 2, 2, 10, 10, 10, 10.])
self.assertLess(np.linalg.norm((expMap * vertMap * actMap * m) -
t_true, np.inf), TOL)
self.assertLess(np.linalg.norm(((expMap * vertMap * actMap) * m) -
t_true, np.inf), TOL)
self.assertLess(np.linalg.norm((expMap * vertMap * (actMap * m)) -
t_true, np.inf), TOL)
self.assertLess(np.linalg.norm((expMap * (vertMap * actMap) * m) -
t_true, np.inf), TOL)
self.assertLess(np.linalg.norm(((expMap * vertMap) * actMap * m) -
t_true, np.inf), TOL)
self.assertRaises(ValueError, lambda: expMap * actMap * vertMap)
self.assertRaises(ValueError, lambda: actMap * vertMap * expMap)
def test_map2Dto3D_x(self):
M2 = Mesh.TensorMesh([2, 4])
M3 = Mesh.TensorMesh([3, 2, 4])
m = np.random.rand(int(M2.nC))
for m2to3 in [Maps.Surject2Dto3D(M3, normal='X'),
Maps.Map2Dto3D(M3, normal='X')]:
# m2to3 = Maps.Surject2Dto3D(M3, normal='X')
m = np.arange(m2to3.nP)
self.assertTrue(m2to3.test())
self.assertTrue(m2to3.testVec())
self.assertTrue(np.all(Utils.mkvc((m2to3 * m).reshape(M3.vnC,
order='F')[0, :, :]) == m))
def test_map2Dto3D_y(self):
M2 = Mesh.TensorMesh([3, 4])
M3 = Mesh.TensorMesh([3, 2, 4])
m = np.random.rand(M2.nC)
for m2to3 in [Maps.Surject2Dto3D(M3, normal='Y'), Maps.Map2Dto3D(M3,
normal='Y')]:
# m2to3 = Maps.Surject2Dto3D(M3, normal='Y')
m = np.arange(m2to3.nP)
self.assertTrue(m2to3.test())
self.assertTrue(m2to3.testVec())
self.assertTrue(np.all(Utils.mkvc((m2to3 * m).reshape(M3.vnC,
order='F')[:, 0, :]) == m))
def test_map2Dto3D_z(self):
M2 = Mesh.TensorMesh([3, 2])
M3 = Mesh.TensorMesh([3, 2, 4])
m = np.random.rand(M2.nC)
for m2to3 in [Maps.Surject2Dto3D(M3, normal='Z'), Maps.Map2Dto3D(M3,
normal='Z')]:
# m2to3 = Maps.Surject2Dto3D(M3, normal='Z')
m = np.arange(m2to3.nP)
self.assertTrue(m2to3.test())
self.assertTrue(m2to3.testVec())
self.assertTrue(np.all(Utils.mkvc((m2to3 * m).reshape(M3.vnC,
order='F')[:, :, 0]) == m))
def test_ParametricPolyMap(self):
M2 = Mesh.TensorMesh([np.ones(10), np.ones(10)], "CN")
mParamPoly = Maps.ParametricPolyMap(M2, 2, logSigma=True, normal='Y')
self.assertTrue(mParamPoly.test(m=np.r_[1., 1., 0., 0., 0.]))
self.assertTrue(mParamPoly.testVec(m=np.r_[1., 1., 0., 0., 0.]))
def test_ParametricSplineMap(self):
M2 = Mesh.TensorMesh([np.ones(10), np.ones(10)], "CN")
x = M2.vectorCCx
mParamSpline = Maps.ParametricSplineMap(M2, x, normal='Y', order=1)
self.assertTrue(mParamSpline.test())
self.assertTrue(mParamSpline.testVec())
def test_Projection(self):
nP = 10
m = np.arange(nP)
self.assertTrue(
np.all(Maps.Projection(nP, slice(5)) * m == m[:5])
)
self.assertTrue(
np.all(Maps.Projection(nP, slice(5, None)) * m == m[5:])
)
self.assertTrue(np.all(
Maps.Projection(nP, np.r_[1, 5, 3, 2, 9, 9]) * m ==
np.r_[1, 5, 3, 2, 9, 9]
))
self.assertTrue(np.all(
Maps.Projection(nP, [1, 5, 3, 2, 9, 9]) * m ==
np.r_[1, 5, 3, 2, 9, 9]
))
with self.assertRaises(AssertionError):
Maps.Projection(nP, np.r_[10]) * m
mapping = Maps.Projection(nP, np.r_[1, 2, 6, 1, 3, 5, 4, 9, 9, 8, 0])
mapping.test()
class TestWires(unittest.TestCase):
def test_basic(self):
mesh = Mesh.TensorMesh([10, 10, 10])
wires = Maps.Wires(
('sigma', mesh.nCz),
('mu_casing', 1),
)
model = np.arange(mesh.nCz + 1)
assert isinstance(wires.sigma, Maps.Projection)
assert wires.nP == mesh.nCz + 1
named_model = wires * model
named_model.sigma == model[:mesh.nCz]
assert named_model.mu_casing == 10
class TestSCEMT(unittest.TestCase):
def test_sphericalInclusions(self):
mesh = Mesh.TensorMesh([4, 5, 3])
mapping = Maps.SelfConsistentEffectiveMedium(
mesh, sigma0=1e-1, sigma1=1.
)
m = np.abs(np.random.rand(mesh.nC))
mapping.test(m=m, dx=0.05, num=3)
def test_spheroidalInclusions(self):
mesh = Mesh.TensorMesh([4, 3, 2])
mapping = Maps.SelfConsistentEffectiveMedium(
mesh, sigma0=1e-1, sigma1=1., alpha0=0.8, alpha1=0.9, rel_tol=1e-8
)
m = np.abs(np.random.rand(mesh.nC))
mapping.test(m=m, dx=0.05, num=3)
if __name__ == '__main__':
unittest.main()