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test_core.py
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test_core.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import (absolute_import, division, print_function,
unicode_literals)
from future.builtins import * # NOQA @UnusedWildImport
import os
import unittest
import numpy as np
from obspy import UTCDateTime, read
from obspy.io.ah.core import _is_ah, _read_ah, _write_ah1, _read_ah1
from obspy.core.util import NamedTemporaryFile
class CoreTestCase(unittest.TestCase):
"""
AH (Ad Hoc) file test suite.
"""
def setUp(self):
# Directory where the test files are located
self.path = os.path.join(os.path.dirname(__file__), 'data')
def test_is_ah(self):
"""
Testing AH file format.
"""
# AH v1
testfile = os.path.join(self.path, 'TSG', 'BRV.TSG.DS.lE21.resp')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'TSG', 'BRV.TSG.KSM.sE12.resp')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah1.f')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah1.c')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah1.t')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'hrv.lh.zne')
self.assertTrue(_is_ah(testfile))
# AH v2
testfile = os.path.join(self.path, 'ah2.f')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah2.f-e')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah2.c')
self.assertTrue(_is_ah(testfile))
testfile = os.path.join(self.path, 'ah2.t')
self.assertTrue(_is_ah(testfile))
# non AH files
testfile = os.path.join(self.path, 'TSG', 'BRV.TSG.DS.lE21.asc')
self.assertFalse(_is_ah(testfile))
testfile = os.path.join(self.path, 'TSG', 'BRV.TSG.KSM.sE12.asc')
self.assertFalse(_is_ah(testfile))
testfile = os.path.join(self.path, 'TSG', 'Readme_TSG_response.txt')
self.assertFalse(_is_ah(testfile))
def test_read(self):
"""
Testing reading AH file format using read() function.
"""
# AH v1
testfile = os.path.join(self.path, 'hrv.lh.zne')
st = read(testfile)
self.assertEqual(len(st), 3)
testfile = os.path.join(self.path, 'ah1.f')
st = read(testfile)
self.assertEqual(len(st), 4)
# not supported data types (vector, complex, tensor)
testfile = os.path.join(self.path, 'ah1.c')
self.assertRaises(NotImplementedError, _read_ah, testfile)
testfile = os.path.join(self.path, 'ah1.t')
self.assertRaises(NotImplementedError, _read_ah, testfile)
# AH v2
# float
testfile = os.path.join(self.path, 'ah2.f')
st = read(testfile)
self.assertEqual(len(st), 4)
def test_read_ah(self):
"""
Testing reading AH file format using _read_ah() function.
"""
# AH v1
testfile = os.path.join(self.path, 'ah1.f')
st = _read_ah(testfile)
self.assertEqual(len(st), 4)
tr = st[0]
ah = tr.stats.ah
# station
self.assertEqual(ah.version, '1.0')
self.assertEqual(ah.station.code, 'RSCP')
self.assertEqual(ah.station.channel, 'IPZ')
self.assertEqual(ah.station.type, 'null')
self.assertAlmostEqual(ah.station.latitude, 35.599899, 6)
self.assertAlmostEqual(ah.station.longitude, -85.568802, 6)
self.assertEqual(ah.station.elevation, 481.0)
self.assertAlmostEqual(ah.station.gain, 64200.121094, 6)
self.assertEqual(len(ah.station.poles), 24)
self.assertEqual(len(ah.station.zeros), 7)
# event
self.assertEqual(ah.event.latitude, 0.0)
self.assertEqual(ah.event.longitude, 0.0)
self.assertEqual(ah.event.depth, 0.0)
self.assertEqual(ah.event.origin_time, None)
self.assertEqual(ah.event.comment, 'null')
# record
self.assertEqual(ah.record.type, 1)
self.assertEqual(ah.record.ndata, 720)
self.assertEqual(tr.stats.npts, 720)
self.assertEqual(len(tr), 720)
self.assertEqual(tr.data.dtype, np.float64)
self.assertAlmostEqual(ah.record.delta, 0.25, 6)
self.assertAlmostEqual(tr.stats.delta, 0.25, 6)
self.assertAlmostEqual(ah.record.max_amplitude, 0.0, 6)
dt = UTCDateTime(1984, 4, 20, 6, 42, 0, 120000)
self.assertEqual(ah.record.start_time, dt)
self.assertEqual(tr.stats.starttime, dt)
self.assertEqual(ah.record.comment, 'null')
self.assertEqual(ah.record.log, 'gdsn_tape;demeaned;')
# data
np.testing.assert_array_almost_equal(tr.data[:4], np.array([
-731.41247559, -724.41247559, -622.41247559, -470.4125061]))
np.testing.assert_array_almost_equal(tr.data[-4:], np.array([
-1421.41247559, 118.58750153, 88.58750153, -982.41247559]))
# not supported data types (vector, complex, tensor)
testfile = os.path.join(self.path, 'ah1.c')
self.assertRaises(NotImplementedError, _read_ah, testfile)
testfile = os.path.join(self.path, 'ah1.t')
self.assertRaises(NotImplementedError, _read_ah, testfile)
# AH v2
testfile = os.path.join(self.path, 'ah2.f')
st = _read_ah(testfile)
self.assertEqual(len(st), 4)
tr = st[0]
ah = tr.stats.ah
self.assertEqual(ah.version, '2.0')
# station
self.assertEqual(ah.station.code, 'RSCP')
self.assertEqual(ah.station.channel, 'IPZ')
self.assertEqual(ah.station.type, 'null')
self.assertAlmostEqual(ah.station.latitude, 35.599899, 6)
self.assertAlmostEqual(ah.station.longitude, -85.568802, 6)
self.assertEqual(ah.station.elevation, 481.0)
self.assertAlmostEqual(ah.station.gain, 64200.121094, 6)
self.assertEqual(len(ah.station.poles), 24)
self.assertEqual(len(ah.station.zeros), 7)
# event
self.assertEqual(ah.event.latitude, 0.0)
self.assertEqual(ah.event.longitude, 0.0)
self.assertEqual(ah.event.depth, 0.0)
self.assertEqual(ah.event.origin_time, None)
self.assertEqual(ah.event.comment, 'null')
# record
self.assertEqual(ah.record.type, 1)
self.assertEqual(ah.record.ndata, 720)
self.assertEqual(tr.stats.npts, 720)
self.assertEqual(len(tr), 720)
self.assertEqual(tr.data.dtype, np.float64)
self.assertAlmostEqual(ah.record.delta, 0.25, 6)
self.assertAlmostEqual(tr.stats.delta, 0.25, 6)
self.assertAlmostEqual(ah.record.max_amplitude, 0.0, 6)
dt = UTCDateTime(1984, 4, 20, 6, 42, 0, 120000)
self.assertEqual(ah.record.start_time, dt)
self.assertEqual(tr.stats.starttime, dt)
self.assertEqual(ah.record.comment, 'null')
self.assertEqual(ah.record.log, 'gdsn_tape;demeaned;')
# data
np.testing.assert_array_almost_equal(tr.data[:4], np.array([
-731.41247559, -724.41247559, -622.41247559, -470.4125061]))
np.testing.assert_array_almost_equal(tr.data[-4:], np.array([
-1421.41247559, 118.58750153, 88.58750153, -982.41247559]))
# not supported data types (vector, complex, tensor)
testfile = os.path.join(self.path, 'ah2.t')
self.assertRaises(NotImplementedError, _read_ah, testfile)
def test_tsg(self):
"""
Test reading AH v1 files of the STsR-TSG System at Borovoye.
.. seealso:: https://www.ldeo.columbia.edu/res/pi/Monitoring/Data/
"""
# 1 - BRV.TSG.DS.lE21
testfile = os.path.join(self.path, 'TSG', 'BRV.TSG.DS.lE21.resp')
st = _read_ah(testfile)
self.assertEqual(len(st), 1)
tr = st[0]
ah = tr.stats.ah
self.assertEqual(ah.version, '1.0')
# station
self.assertEqual(ah.station.code, 'BRVK')
self.assertEqual(ah.station.channel, 'lE21')
self.assertEqual(ah.station.type, 'TSG-DS')
self.assertAlmostEqual(ah.station.latitude, 53.058060, 6)
self.assertAlmostEqual(ah.station.longitude, 70.282799, 6)
self.assertEqual(ah.station.elevation, 300.0)
self.assertAlmostEqual(ah.station.gain, 0.05, 6)
self.assertAlmostEqual(ah.station.normalization, 40.009960, 6)
self.assertAlmostEqual(ah.station.longitude, 70.282799, 6)
# calibration
self.assertEqual(len(ah.station.poles), 7)
self.assertAlmostEqual(ah.station.poles[0],
complex(-1.342653e-01, 1.168836e-01), 6)
self.assertAlmostEqual(ah.station.poles[1],
complex(-1.342653e-01, -1.168836e-01), 6)
self.assertEqual(len(ah.station.zeros), 4)
self.assertAlmostEqual(ah.station.zeros[0], complex(0.0, 0.0), 6)
self.assertAlmostEqual(ah.station.zeros[1], complex(0.0, 0.0), 6)
self.assertAlmostEqual(ah.station.zeros[2], complex(0.0, 0.0), 6)
self.assertAlmostEqual(ah.station.zeros[3], complex(0.0, 0.0), 6)
# event
self.assertAlmostEqual(ah.event.latitude, 49.833000, 6)
self.assertAlmostEqual(ah.event.longitude, 78.807999, 6)
self.assertEqual(ah.event.depth, 0.5)
self.assertEqual(ah.event.origin_time, UTCDateTime(1988, 2, 8, 15, 23))
self.assertEqual(ah.event.comment, 'Calibration_for_hg_TSG')
# record
self.assertEqual(ah.record.type, 1)
self.assertEqual(ah.record.ndata, 225)
self.assertEqual(tr.stats.npts, 225)
self.assertEqual(len(tr), 225)
self.assertEqual(tr.data.dtype, np.float64)
self.assertAlmostEqual(ah.record.delta, 0.312, 6)
self.assertAlmostEqual(tr.stats.delta, 0.312, 6)
self.assertAlmostEqual(ah.record.max_amplitude, 785.805786, 6)
dt = UTCDateTime(1988, 2, 8, 15, 24, 50.136002)
self.assertEqual(ah.record.start_time, dt)
self.assertEqual(tr.stats.starttime, dt)
self.assertEqual(ah.record.abscissa_min, 0.0)
self.assertEqual(ah.record.comment, 'DS response in counts/nm;')
self.assertEqual(ah.record.log,
'brv2ah: ahtedit;demeaned;modhead;modhead;ahtedit;')
# extras
self.assertEqual(len(ah.extras), 21)
self.assertEqual(ah.extras[0], 0.0)
self.assertAlmostEqual(ah.extras[1], 0.1, 6)
self.assertAlmostEqual(ah.extras[2], 0.1, 6)
self.assertEqual(ah.extras[3], 0.0)
# data
np.testing.assert_array_almost_equal(tr.data[:24], np.array([
-1.19425595, -1.19425595, -1.19425595, -1.19425595,
-1.19425595, -1.19425595, -1.19425595, -1.19425595,
-1.19425595, -1.19425595, -1.19425595, -1.19425595,
-1.19425595, -1.19425595, -1.19425595, -1.19425595,
-1.19425595, -1.19425595, -1.19425595, -1.19425595,
52.8057518, 175.80580139, 322.80578613, 463.80578613]))
np.testing.assert_array_almost_equal(tr.data[-4:], np.array([
1.80574405, 2.80574393, 3.80574393, 3.80574393]))
def test_write_ah1(self):
"""
Testing writing AH1 file format using _write_ah1() function.
"""
# AH v1
testfile = os.path.join(self.path, 'st.ah')
stream_orig = _read_ah(testfile)
with NamedTemporaryFile() as tf:
tmpfile = tf.name + '.AH'
# write testfile
_write_ah1(stream_orig, tmpfile)
# read again
st = _read_ah1(tmpfile)
self.assertEqual(len(st), 1)
tr = st[0]
ah = tr.stats.ah
stats = tr.stats
# stream header
self.assertEqual(stats.network, '')
self.assertEqual(stats.station, 'ALE')
self.assertEqual(stats.location, '')
self.assertEqual(stats.channel, 'VHZ')
starttime = UTCDateTime(1994, 6, 9, 0, 40, 45)
endtime = UTCDateTime(1994, 6, 12, 8, 55, 4, 724522)
self.assertEqual(stats.starttime, starttime)
self.assertEqual(stats.endtime, endtime)
self.assertAlmostEqual(stats.sampling_rate, 0.100000, 6)
self.assertAlmostEqual(stats.delta, 9.999990, 6)
self.assertEqual(stats.npts, 28887)
self.assertEqual(len(tr), 28887)
self.assertEqual(stats.calib, 1.0)
# station
self.assertEqual(ah.version, '1.0')
self.assertEqual(ah.station.code, 'ALE')
self.assertEqual(ah.station.channel, 'VHZ')
self.assertEqual(ah.station.type, 'Global S')
self.assertEqual(ah.station.latitude, 82.50330352783203)
self.assertEqual(ah.station.longitude, -62.349998474121094)
self.assertEqual(ah.station.elevation, 60.0)
self.assertEqual(ah.station.gain, 265302864.0)
self.assertEqual(len(ah.station.poles), 13)
self.assertEqual(len(ah.station.zeros), 6)
# event
self.assertEqual(ah.event.latitude, -13.872200012207031)
self.assertEqual(ah.event.longitude, -67.51249694824219)
self.assertEqual(ah.event.depth, 640000.0)
origintime = UTCDateTime(1994, 6, 9, 0, 33, 16)
self.assertEqual(ah.event.origin_time, origintime)
self.assertEqual(ah.event.comment, 'null')
# record
self.assertEqual(ah.record.type, 1)
self.assertEqual(ah.record.ndata, 28887)
self.assertEqual(tr.data.dtype, np.float64)
self.assertAlmostEqual(ah.record.delta, 9.999990, 6)
self.assertEqual(ah.record.max_amplitude, 9.265750885009766)
rstarttime = UTCDateTime(1994, 6, 9, 0, 40, 45)
self.assertEqual(ah.record.start_time, rstarttime)
comment = 'Comp azm=0.0,inc=-90.0; Disp (m);'
self.assertEqual(ah.record.comment, comment)
self.assertEqual(ah.record.log, 'null')
# data
np.testing.assert_array_almost_equal(tr.data[:4], np.array([
-236., -242., -252., -262.]))
np.testing.assert_array_almost_equal(tr.data[-4:], np.array([
101., 106., 107., 104.]))
def suite():
return unittest.makeSuite(CoreTestCase, 'test')
if __name__ == '__main__':
unittest.main(defaultTest='suite')