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test_Fields.py
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test_Fields.py
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from __future__ import print_function
import unittest
from SimPEG import Mesh, Problem, Fields, Survey, Utils
import numpy as np
import sys
np.random.seed(32)
if sys.version_info < (3,):
zero_types = [0, 0.0, np.r_[0], long(0)]
else:
zero_types = [0, 0.0, np.r_[0]]
class FieldsTest(unittest.TestCase):
def setUp(self):
mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10, 11, 12]],
[0, 0, -30])
x = np.linspace(5, 10, 3)
XYZ = Utils.ndgrid(x, x, np.r_[0.])
srcLoc = np.r_[0., 0., 0.]
rxList0 = Survey.BaseRx(XYZ, 'exi')
Src0 = Survey.BaseSrc([rxList0], loc=srcLoc)
rxList1 = Survey.BaseRx(XYZ, 'bxi')
Src1 = Survey.BaseSrc([rxList1], loc=srcLoc)
rxList2 = Survey.BaseRx(XYZ, 'bxi')
Src2 = Survey.BaseSrc([rxList2], loc=srcLoc)
rxList3 = Survey.BaseRx(XYZ, 'bxi')
Src3 = Survey.BaseSrc([rxList3], loc=srcLoc)
Src4 = Survey.BaseSrc([rxList0, rxList1, rxList2, rxList3], loc=srcLoc)
srcList = [Src0, Src1, Src2, Src3, Src4]
survey = Survey.BaseSurvey(srcList=srcList)
self.D = Survey.Data(survey)
self.F = Problem.Fields(mesh, survey, knownFields={'phi': 'CC',
'e': 'E', 'b': 'F'},
dtype={"phi": float, "e": complex,
"b": complex})
self.Src0 = Src0
self.Src1 = Src1
self.mesh = mesh
self.XYZ = XYZ
def test_contains(self):
F = self.F
nSrc = F.survey.nSrc
self.assertTrue('b' not in F)
self.assertTrue('e' not in F)
e = np.random.rand(F.mesh.nE, nSrc)
F[:, 'e'] = e
self.assertTrue('b' not in F)
self.assertTrue('e' in F)
def test_overlappingFields(self):
self.assertRaises(AssertionError, Problem.Fields, self.F.mesh,
self.F.survey, knownFields={'b': 'F'},
aliasFields={'b': ['b', (lambda F, b, ind: b)]})
def test_SetGet(self):
F = self.F
nSrc = F.survey.nSrc
e = (np.random.rand(F.mesh.nE, nSrc) +
np.random.rand(F.mesh.nE, nSrc)*1j)
F[:, 'e'] = e
b = (np.random.rand(F.mesh.nF, nSrc) +
np.random.rand(F.mesh.nF, nSrc)*1j)
F[:, 'b'] = b
self.assertTrue(np.all(F[:, 'e'] == e))
self.assertTrue(np.all(F[:, 'b'] == b))
F[:] = {'b': b, 'e': e}
self.assertTrue(np.all(F[:, 'e'] == e))
self.assertTrue(np.all(F[:, 'b'] == b))
for s in zero_types:
F[:, 'b'] = s
self.assertTrue(np.all(F[:, 'b'] == b*0))
b = np.random.rand(F.mesh.nF, 1)
print(type(self.Src0), 'here')
F[self.Src0, 'b'] = b
self.assertTrue(np.all(F[self.Src0, 'b'] == b))
b = np.random.rand(F.mesh.nF, 1)
F[self.Src0, 'b'] = b
self.assertTrue(np.all(F[self.Src0, 'b'] == b))
phi = np.random.rand(F.mesh.nC, 2)
F[[self.Src0, self.Src1], 'phi'] = phi
self.assertTrue(np.all(F[[self.Src0, self.Src1], 'phi'] == phi))
fdict = F[:, :]
self.assertTrue(type(fdict) is dict)
self.assertTrue(sorted([k for k in fdict]) == ['b', 'e', 'phi'])
b = np.random.rand(F.mesh.nF, 2)
F[[self.Src0, self.Src1], 'b'] = b
self.assertTrue(F[self.Src0]['b'].shape == (F.mesh.nF, 1))
self.assertTrue(F[self.Src0, 'b'].shape == (F.mesh.nF, 1))
self.assertTrue(np.all(F[self.Src0, 'b'] == Utils.mkvc(b[:, 0], 2)))
self.assertTrue(np.all(F[self.Src1, 'b'] == Utils.mkvc(b[:, 1], 2)))
def test_assertions(self):
freq = [self.Src0, self.Src1]
bWrongSize = np.random.rand(self.F.mesh.nE, self.F.survey.nSrc)
def fun(): self.F[freq, 'b'] = bWrongSize
self.assertRaises(ValueError, fun)
def fun(): self.F[-999.]
self.assertRaises(KeyError, fun)
def fun(): self.F['notRight']
self.assertRaises(KeyError, fun)
def fun(): self.F[freq, 'notThere']
self.assertRaises(KeyError, fun)
class FieldsTest_Alias(unittest.TestCase):
def setUp(self):
mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10, 11, 12]],
[0, 0, -30])
x = np.linspace(5, 10, 3)
XYZ = Utils.ndgrid(x, x, np.r_[0.])
srcLoc = np.r_[0, 0, 0.]
rxList0 = Survey.BaseRx(XYZ, 'exi')
Src0 = Survey.BaseSrc([rxList0], loc=srcLoc)
rxList1 = Survey.BaseRx(XYZ, 'bxi')
Src1 = Survey.BaseSrc([rxList1], loc=srcLoc)
rxList2 = Survey.BaseRx(XYZ, 'bxi')
Src2 = Survey.BaseSrc([rxList2], loc=srcLoc)
rxList3 = Survey.BaseRx(XYZ, 'bxi')
Src3 = Survey.BaseSrc([rxList3], loc=srcLoc)
Src4 = Survey.BaseSrc([rxList0, rxList1, rxList2, rxList3], loc=srcLoc)
srcList = [Src0, Src1, Src2, Src3, Src4]
survey = Survey.BaseSurvey(srcList=srcList)
self.F = Problem.Fields(mesh, survey, knownFields={'e': 'E'},
aliasFields={'b': ['e', 'F',
(lambda e, ind:
self.F.mesh.edgeCurl *
e)]})
self.Src0 = Src0
self.Src1 = Src1
self.mesh = mesh
self.XYZ = XYZ
def test_contains(self):
F = self.F
nSrc = F.survey.nSrc
self.assertTrue('b' not in F)
self.assertTrue('e' not in F)
e = np.random.rand(F.mesh.nE, nSrc)
F[:, 'e'] = e
self.assertTrue('b' in F)
self.assertTrue('e' in F)
def test_simpleAlias(self):
F = self.F
nSrc = F.survey.nSrc
e = np.random.rand(F.mesh.nE, nSrc)
F[:, 'e'] = e
self.assertTrue(np.all(F[:, 'b'] == F.mesh.edgeCurl * e))
e = np.random.rand(F.mesh.nE, 1)
F[self.Src0, 'e'] = e
self.assertTrue(np.all(F[self.Src0, 'b'] == F.mesh.edgeCurl * e))
def f():
F[self.Src0, 'b'] = F[self.Src0, 'b']
self.assertRaises(KeyError, f) # can't set a alias attr.
def test_aliasFunction(self):
def alias(e, ind):
self.assertTrue(ind[0] is self.Src0)
return self.F.mesh.edgeCurl * e
F = Problem.Fields(self.F.mesh, self.F.survey, knownFields={'e': 'E'},
aliasFields={'b': ['e', 'F', alias]})
e = np.random.rand(F.mesh.nE, 1)
F[self.Src0, 'e'] = e
F[self.Src0, 'b']
def alias(e, ind):
self.assertTrue(type(ind) is list)
self.assertTrue(ind[0] is self.Src0)
self.assertTrue(ind[1] is self.Src1)
return self.F.mesh.edgeCurl * e
F = Problem.Fields(self.F.mesh, self.F.survey, knownFields={'e': 'E'},
aliasFields={'b': ['e', 'F', alias]})
e = np.random.rand(F.mesh.nE, 2)
F[[self.Src0, self.Src1], 'e'] = e
F[[self.Src0, self.Src1], 'b']
class FieldsTest_Time(unittest.TestCase):
def setUp(self):
mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10, 11, 12]],
[0, 0, -30])
x = np.linspace(5, 10, 3)
XYZ = Utils.ndgrid(x, x, np.r_[0.])
srcLoc = np.r_[0, 0, 0.]
rxList0 = Survey.BaseRx(XYZ, 'exi')
Src0 = Survey.BaseSrc([rxList0], loc=srcLoc)
rxList1 = Survey.BaseRx(XYZ, 'bxi')
Src1 = Survey.BaseSrc([rxList1], loc=srcLoc)
rxList2 = Survey.BaseRx(XYZ, 'bxi')
Src2 = Survey.BaseSrc([rxList2], loc=srcLoc)
rxList3 = Survey.BaseRx(XYZ, 'bxi')
Src3 = Survey.BaseSrc([rxList3], loc=srcLoc)
Src4 = Survey.BaseSrc([rxList0, rxList1, rxList2, rxList3], loc=srcLoc)
srcList = [Src0, Src1, Src2, Src3, Src4]
survey = Survey.BaseSurvey(srcList=srcList)
prob = Problem.BaseTimeProblem(mesh, timeSteps=[(10., 3), (20., 2)])
survey.pair(prob)
self.F = Problem.TimeFields(mesh, survey, knownFields={'phi': 'CC',
'e': 'E',
'b': 'F'})
self.Src0 = Src0
self.Src1 = Src1
self.mesh = mesh
self.XYZ = XYZ
def test_contains(self):
F = self.F
nSrc = F.survey.nSrc
nT = F.survey.prob.nT + 1
self.assertTrue('b' not in F)
self.assertTrue('e' not in F)
self.assertTrue('phi' not in F)
e = np.random.rand(F.mesh.nE, nSrc, nT)
F[:, 'e', :] = e
self.assertTrue('e' in F)
self.assertTrue('b' not in F)
self.assertTrue('phi' not in F)
def test_SetGet(self):
F = self.F
nSrc = F.survey.nSrc
nT = F.survey.prob.nT + 1
e = np.random.rand(F.mesh.nE, nSrc, nT)
F[:, 'e'] = e
b = np.random.rand(F.mesh.nF, nSrc, nT)
F[:, 'b'] = b
self.assertTrue(np.all(F[:, 'e'] == e))
self.assertTrue(np.all(F[:, 'b'] == b))
F[:] = {'b': b, 'e': e}
self.assertTrue(np.all(F[:, 'e'] == e))
self.assertTrue(np.all(F[:, 'b'] == b))
for s in zero_types:
F[:, 'b'] = s
self.assertTrue(np.all(F[:, 'b'] == b*0))
b = np.random.rand(F.mesh.nF, 1, nT)
F[self.Src0, 'b'] = b
self.assertTrue(np.all(F[self.Src0, 'b'] == b[:, 0, :]))
b = np.random.rand(F.mesh.nF, 1, nT)
F[self.Src0, 'b', 0] = b[:, :, 0]
self.assertTrue(np.all(F[self.Src0, 'b', 0] == Utils.mkvc(b[:, 0, 0],
2)))
phi = np.random.rand(F.mesh.nC, 2, nT)
F[[self.Src0, self.Src1], 'phi'] = phi
self.assertTrue(np.all(F[[self.Src0, self.Src1], 'phi'] == phi))
fdict = F[:]
self.assertTrue(type(fdict) is dict)
self.assertTrue(sorted([k for k in fdict]) == ['b', 'e', 'phi'])
b = np.random.rand(F.mesh.nF, 2, nT)
F[[self.Src0, self.Src1], 'b'] = b
self.assertTrue(F[self.Src0]['b'].shape == (F.mesh.nF, nT))
self.assertTrue(F[self.Src0, 'b'].shape == (F.mesh.nF, nT))
self.assertTrue(np.all(F[self.Src0, 'b'] == b[:, 0, :]))
self.assertTrue(np.all(F[self.Src1, 'b'] == b[:, 1, :]))
self.assertTrue(np.all(F[self.Src0, 'b', 1] ==
Utils.mkvc(b[:, 0, 1], 2)))
self.assertTrue(np.all(F[self.Src1, 'b', 1] ==
Utils.mkvc(b[:, 1, 1], 2)))
self.assertTrue(np.all(F[self.Src0, 'b', 4] ==
Utils.mkvc(b[:, 0, 4], 2)))
self.assertTrue(np.all(F[self.Src1, 'b', 4] ==
Utils.mkvc(b[:, 1, 4], 2)))
b = np.random.rand(F.mesh.nF, 2, nT)
F[[self.Src0, self.Src1], 'b', 0] = b[:, :, 0]
def test_assertions(self):
freq = [self.Src0, self.Src1]
bWrongSize = np.random.rand(self.F.mesh.nE, self.F.survey.nSrc)
def fun(): self.F[freq, 'b'] = bWrongSize
self.assertRaises(ValueError, fun)
def fun(): self.F[-999.]
self.assertRaises(KeyError, fun)
def fun(): self.F['notRight']
self.assertRaises(KeyError, fun)
def fun(): self.F[freq, 'notThere']
self.assertRaises(KeyError, fun)
class FieldsTest_Time_Aliased(unittest.TestCase):
def setUp(self):
mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10, 11, 12]],
[0, 0, -30])
x = np.linspace(5, 10, 3)
XYZ = Utils.ndgrid(x, x, np.r_[0.])
srcLoc = np.r_[0, 0, 0.]
rxList0 = Survey.BaseRx(XYZ, 'exi')
Src0 = Survey.BaseSrc([rxList0], loc=srcLoc)
rxList1 = Survey.BaseRx(XYZ, 'bxi')
Src1 = Survey.BaseSrc([rxList1], loc=srcLoc)
rxList2 = Survey.BaseRx(XYZ, 'bxi')
Src2 = Survey.BaseSrc([rxList2], loc=srcLoc)
rxList3 = Survey.BaseRx(XYZ, 'bxi')
Src3 = Survey.BaseSrc([rxList3], loc=srcLoc)
Src4 = Survey.BaseSrc([rxList0, rxList1, rxList2, rxList3], loc=srcLoc)
srcList = [Src0, Src1, Src2, Src3, Src4]
survey = Survey.BaseSurvey(srcList=srcList)
prob = Problem.BaseTimeProblem(mesh, timeSteps=[(10., 3), (20., 2)])
survey.pair(prob)
def alias(b, srcInd, timeInd):
return self.F.mesh.edgeCurl.T * b + timeInd
self.F = Problem.TimeFields(mesh, survey, knownFields={'b': 'F'},
aliasFields={'e': ['b', 'E', alias]})
self.Src0 = Src0
self.Src1 = Src1
self.mesh = mesh
self.XYZ = XYZ
def test_contains(self):
F = self.F
nSrc = F.survey.nSrc
nT = F.survey.prob.nT + 1
self.assertTrue('b' not in F)
self.assertTrue('e' not in F)
b = np.random.rand(F.mesh.nF, nSrc, nT)
F[:, 'b', :] = b
self.assertTrue('e' in F)
self.assertTrue('b' in F)
def test_simpleAlias(self):
F = self.F
nSrc = F.survey.nSrc
nT = F.survey.prob.nT + 1
b = np.random.rand(F.mesh.nF, nSrc, nT)
F[:, 'b', :] = b
self.assertTrue(np.all(F[:, 'e', 0] == F.mesh.edgeCurl.T * b[:, :, 0]))
e = list(range(nT))
for i in range(nT):
e[i] = F.mesh.edgeCurl.T*b[:, :, i] + i
e[i] = e[i][:, :, np.newaxis]
e = np.concatenate(e, axis=2)
self.assertTrue(np.all(F[:, 'e', :] == e))
self.assertTrue(np.all(F[self.Src0, 'e', :] == e[:, 0, :]))
self.assertTrue(np.all(F[self.Src1, 'e', :] == e[:, 1, :]))
for t in range(nT):
self.assertTrue(np.all(F[self.Src1, 'e', t] ==
Utils.mkvc(e[:, 1, t], 2)))
b = np.random.rand(F.mesh.nF, nT)
F[self.Src0, 'b', :] = b
Cb = F.mesh.edgeCurl.T * b
for i in range(Cb.shape[1]):
Cb[:, i] += i
self.assertTrue(np.all(F[self.Src0, 'e', :] == Cb))
def f():
F[self.Src0, 'e'] = F[self.Src0, 'e']
self.assertRaises(KeyError, f) # can't set a alias attr.
def test_aliasFunction(self):
nT = self.F.survey.prob.nT + 1
count = [0]
def alias(e, srcInd, timeInd):
count[0] += 1
self.assertTrue(srcInd[0] is self.Src0)
return self.F.mesh.edgeCurl * e
F = Problem.TimeFields(self.F.mesh, self.F.survey,
knownFields={'e': 'E'},
aliasFields={'b': ['e', 'F', alias]})
e = np.random.rand(F.mesh.nE, 1, nT)
F[self.Src0, 'e', :] = e
F[self.Src0, 'b', :]
# ensure that this is called for every time separately.
self.assertTrue(count[0] == nT)
e = np.random.rand(F.mesh.nE, 1, 1)
F[self.Src0, 'e', 1] = e
count[0] = 0
F[self.Src0, 'b', 1]
self.assertTrue(count[0] == 1) # ensure that this is called only once.
def alias(e, srcInd, timeInd):
count[0] += 1
self.assertTrue(type(srcInd) is list)
self.assertTrue(srcInd[0] is self.Src0)
self.assertTrue(srcInd[1] is self.Src1)
return self.F.mesh.edgeCurl * e
F = Problem.TimeFields(self.F.mesh, self.F.survey,
knownFields={'e': 'E'},
aliasFields={'b': ['e', 'F', alias]})
e = np.random.rand(F.mesh.nE, 2, nT)
F[[self.Src0, self.Src1], 'e', :] = e
count[0] = 0
F[[self.Src0, self.Src1], 'b', :]
# ensure that this is called for every time separately.
self.assertTrue(count[0] == nT)
e = np.random.rand(F.mesh.nE, 2, 1)
F[[self.Src0, self.Src1], 'e', 1] = e
count[0] = 0
F[[self.Src0, self.Src1], 'b', 1]
self.assertTrue(count[0] == 1) # ensure that this is called only once.
if __name__ == '__main__':
unittest.main()