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rowanc1
104 lines
3.9 KiB
Python
104 lines
3.9 KiB
Python
import unittest
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from SimPEG import *
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import simpegEM as EM
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class FieldsTest(unittest.TestCase):
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def setUp(self):
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mesh = Mesh.TensorMesh([np.ones(n)*5 for n in [10,11,12]],[0,0,-30])
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x = np.linspace(5,10,3)
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XYZ = Utils.ndgrid(x,x,np.r_[0.])
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txLoc = np.r_[0,0,0.]
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rxList0 = EM.FDEM.RxFDEM(XYZ, 'exi')
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Tx0 = EM.FDEM.TxFDEM(txLoc, 'VMD', 3., [rxList0])
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rxList1 = EM.FDEM.RxFDEM(XYZ, 'bxi')
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Tx1 = EM.FDEM.TxFDEM(txLoc, 'VMD', 3., [rxList1])
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rxList2 = EM.FDEM.RxFDEM(XYZ, 'bxi')
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Tx2 = EM.FDEM.TxFDEM(txLoc, 'VMD', 2., [rxList2])
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rxList3 = EM.FDEM.RxFDEM(XYZ, 'bxi')
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Tx3 = EM.FDEM.TxFDEM(txLoc, 'VMD', 2., [rxList3])
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Tx4 = EM.FDEM.TxFDEM(txLoc, 'VMD', 1., [rxList0, rxList1, rxList2, rxList3])
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txList = [Tx0,Tx1,Tx2,Tx3,Tx4]
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survey = EM.FDEM.SurveyFDEM(txList)
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self.F = EM.FDEM.FieldsFDEM(mesh, survey)
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self.Tx0 = Tx0
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self.Tx1 = Tx1
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self.mesh = mesh
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self.XYZ = XYZ
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def test_SetGet(self):
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F = self.F
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for freq in F.survey.freqs:
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nFreq = F.survey.nTxByFreq[freq]
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Txs = F.survey.getTransmitters(freq)
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e = np.random.rand(F.mesh.nE, nFreq)
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F[Txs, 'e'] = e
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b = np.random.rand(F.mesh.nF, nFreq)
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F[Txs, 'b'] = b
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if nFreq == 1:
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F[Txs, 'b'] = Utils.mkvc(b)
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if e.shape[1] == 1:
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e, b = Utils.mkvc(e), Utils.mkvc(b)
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self.assertTrue(np.all(F[Txs, 'e'] == e))
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self.assertTrue(np.all(F[Txs, 'b'] == b))
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F[Txs] = {'b':b,'e':e}
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self.assertTrue(np.all(F[Txs, 'e'] == e))
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self.assertTrue(np.all(F[Txs, 'b'] == b))
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lastFreq = F[Txs]
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self.assertTrue(type(lastFreq) is dict)
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self.assertTrue(sorted([k for k in lastFreq]) == ['b','e'])
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self.assertTrue(np.all(lastFreq['b'] == b))
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self.assertTrue(np.all(lastFreq['e'] == e))
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Tx_f3 = F.survey.getTransmitters(3.)
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self.assertTrue(F[Tx_f3,'b'].shape == (F.mesh.nF, 2))
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b = np.random.rand(F.mesh.nF, 2)
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Tx_f0 = F.survey.getTransmitters(self.Tx0.freq)
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F[Tx_f0,'b'] = b
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self.assertTrue(F[self.Tx0]['b'].shape == (F.mesh.nF,))
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self.assertTrue(F[self.Tx0,'b'].shape == (F.mesh.nF,))
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self.assertTrue(np.all(F[self.Tx0,'b'] == b[:,0]))
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self.assertTrue(np.all(F[self.Tx1,'b'] == b[:,1]))
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def test_assertions(self):
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freq = self.F.survey.freqs[0]
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Txs = self.F.survey.getTransmitters(freq)
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bWrongSize = np.random.rand(self.F.mesh.nE, self.F.survey.nTxByFreq[freq])
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def fun(): self.F[Txs, 'b'] = bWrongSize
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self.assertRaises(ValueError, fun)
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def fun(): self.F[-999.]
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self.assertRaises(KeyError, fun)
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def fun(): self.F['notRight']
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self.assertRaises(KeyError, fun)
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def fun(): self.F[Txs,'notThere']
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self.assertRaises(KeyError, fun)
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def test_FieldProjections(self):
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F = self.F
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for freq in F.survey.freqs:
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nFreq = F.survey.nTxByFreq[freq]
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Txs = F.survey.getTransmitters(freq)
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e = np.random.rand(F.mesh.nE, nFreq)
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b = np.random.rand(F.mesh.nF, nFreq)
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F[Txs] = {'b':b,'e':e}
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Txs = F.survey.getTransmitters(freq)
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for ii, tx in enumerate(Txs):
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for jj, rx in enumerate(tx.rxList):
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dat = rx.projectFields(tx, self.mesh, F)
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self.assertTrue(dat.dtype == float)
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fieldType = rx.projField
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u = {'b':b[:,ii], 'e': e[:,ii]}[fieldType]
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real_or_imag = rx.projComp
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u = getattr(u, real_or_imag)
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gloc = rx.projGLoc
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d = self.mesh.getInterpolationMat(self.XYZ, gloc)*u
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self.assertTrue(np.all(dat == d))
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if __name__ == '__main__':
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unittest.main()
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