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test_util.py
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test_util.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import inspect
import os
import unittest
import numpy as np
try:
import pyproj
HAS_PYPROJ = True
except ImportError:
HAS_PYPROJ = False
from obspy.io.nlloc.util import read_nlloc_scatter
def _coordinate_conversion(x, y, z):
try:
transformer = pyproj.Transformer.from_crs("epsg:31468", "epsg:4326",
always_xy=True)
except Exception:
# pyproj version < 2.2
proj_wgs84 = pyproj.Proj(init="epsg:4326")
proj_gk4 = pyproj.Proj(init="epsg:31468")
x, y = pyproj.transform(proj_gk4, proj_wgs84, x * 1e3, y * 1e3)
else:
x, y = transformer.transform(x * 1e3, y * 1e3)
return x, y, z
class NLLOCTestCase(unittest.TestCase):
"""
Test suite for obspy.io.nlloc
"""
def setUp(self):
self.path = os.path.dirname(os.path.abspath(inspect.getfile(
inspect.currentframe())))
self.datapath = os.path.join(self.path, "data")
def test_read_nlloc_scatter_plain(self):
"""
Test reading NLLoc scatter file without coordinate conversion.
"""
# test without coordinate manipulation
filename = os.path.join(self.datapath, "nlloc.scat")
got = read_nlloc_scatter(filename)
filename = os.path.join(self.datapath, "nlloc_scat.npy")
expected = np.load(filename)
np.testing.assert_array_equal(got, expected)
@unittest.skipIf(not HAS_PYPROJ, 'pyproj not installed')
def test_read_nlloc_scatter_coordinate_conversion(self):
"""
Test reading NLLoc scatter file including coordinate conversion.
"""
# test including coordinate manipulation
filename = os.path.join(self.datapath, "nlloc.scat")
got = read_nlloc_scatter(
filename, coordinate_converter=_coordinate_conversion)
filename = os.path.join(self.datapath, "nlloc_scat_converted.npy")
expected = np.load(filename)
for field in expected.dtype.fields:
np.testing.assert_allclose(got[field], expected[field], rtol=1e-5)
def suite():
return unittest.makeSuite(NLLOCTestCase, "test")
if __name__ == "__main__":
unittest.main(defaultTest="suite")