def setUp(self, fromfile, np2str):
"""Create a test file handler."""
np2str.side_effect = lambda x: x
m = mock.mock_open()
with mock.patch('satpy.readers.ahi_hsd.open', m, create=True):
# Check if file handler raises exception for invalid calibration mode
with self.assertRaises(ValueError):
fh = AHIHSDFileHandler(None, {
'segment_number': 8,
'total_segments': 10
},
None,
calib_mode='BAD_MODE')
fh = AHIHSDFileHandler(None, {
'segment_number': 8,
'total_segments': 10
}, None)
fh.proj_info = {
'CFAC': 40932549,
'COFF': 5500.5,
'LFAC': 40932549,
'LOFF': 5500.5,
'blocklength': 127,
'coeff_for_sd': 1737122264.0,
'distance_from_earth_center': 42164.0,
'earth_equatorial_radius': 6378.137,
'earth_polar_radius': 6356.7523,
'hblock_number': 3,
'req2_rpol2': 1.006739501,
'req2_rpol2_req2': 0.0066943844,
'resampling_size': 4,
'resampling_types': 0,
'rpol2_req2': 0.993305616,
'spare': '',
'sub_lon': 140.7
}
fh.nav_info = {
'SSP_longitude': 140.66,
'SSP_latitude': 0.03,
'distance_earth_center_to_satellite': 42165.04,
'nadir_longitude': 140.67,
'nadir_latitude': 0.04
}
fh.data_info = {
'blocklength': 50,
'compression_flag_for_data': 0,
'hblock_number': 2,
'number_of_bits_per_pixel': 16,
'number_of_columns': 11000,
'number_of_lines': 1100,
'spare': ''
}
fh.basic_info = {
'observation_start_time': np.array([58413.12523839]),
'observation_end_time': np.array([58413.12562439]),
'observation_timeline': np.array([300]),
}
self.fh = fh
def _create_fake_file_handler(in_fname,
filename_info=None,
filetype_info=None):
if filename_info is None:
filename_info = {'segment': 8, 'total_segments': 10}
if filetype_info is None:
filetype_info = {'file_type': 'hsd_b01'}
fh = AHIHSDFileHandler(in_fname, filename_info, filetype_info)
# Check that the filename is altered for bz2 format files
assert in_fname != fh.filename
fh.proj_info = {
'CFAC': 40932549,
'COFF': 5500.5,
'LFAC': 40932549,
'LOFF': 5500.5,
'blocklength': 127,
'coeff_for_sd': 1737122264.0,
'distance_from_earth_center': 42164.0,
'earth_equatorial_radius': 6378.137,
'earth_polar_radius': 6356.7523,
'hblock_number': 3,
'req2_rpol2': 1.006739501,
'req2_rpol2_req2': 0.0066943844,
'resampling_size': 4,
'resampling_types': 0,
'rpol2_req2': 0.993305616,
'spare': '',
'sub_lon': 140.7
}
fh.nav_info = {
'SSP_longitude': 140.66,
'SSP_latitude': 0.03,
'distance_earth_center_to_satellite': 42165.04,
'nadir_longitude': 140.67,
'nadir_latitude': 0.04
}
fh.data_info = {
'blocklength': 50,
'compression_flag_for_data': 0,
'hblock_number': 2,
'number_of_bits_per_pixel': 16,
'number_of_columns': 11000,
'number_of_lines': 1100,
'spare': ''
}
fh.basic_info = {
'observation_area': np.array(['FLDK']),
'observation_start_time': np.array([58413.12523839]),
'observation_end_time': np.array([58413.12562439]),
'observation_timeline': np.array([300]),
}
fh.observation_area = fh.basic_info['observation_area']
return fh
def test_region(self, fromfile, np2str):
"""Test region navigation."""
from pyresample.utils import proj4_radius_parameters
np2str.side_effect = lambda x: x
m = mock.mock_open()
with mock.patch('satpy.readers.ahi_hsd.open', m, create=True):
fh = AHIHSDFileHandler('somefile', {
'segment': 1,
'total_segments': 1
},
filetype_info={'file_type': 'hsd_b01'},
user_calibration=None)
fh.proj_info = {
'CFAC': 40932549,
'COFF': -591.5,
'LFAC': 40932549,
'LOFF': 5132.5,
'blocklength': 127,
'coeff_for_sd': 1737122264.0,
'distance_from_earth_center': 42164.0,
'earth_equatorial_radius': 6378.137,
'earth_polar_radius': 6356.7523,
'hblock_number': 3,
'req2_rpol2': 1.006739501,
'req2_rpol2_req2': 0.0066943844,
'resampling_size': 4,
'resampling_types': 0,
'rpol2_req2': 0.993305616,
'spare': '',
'sub_lon': 140.7
}
fh.data_info = {
'blocklength': 50,
'compression_flag_for_data': 0,
'hblock_number': 2,
'number_of_bits_per_pixel': 16,
'number_of_columns': 1000,
'number_of_lines': 1000,
'spare': ''
}
area_def = fh.get_area_def(None)
proj_dict = area_def.proj_dict
a, b = proj4_radius_parameters(proj_dict)
self.assertEqual(a, 6378137.0)
self.assertEqual(b, 6356752.3)
self.assertEqual(proj_dict['h'], 35785863.0)
self.assertEqual(proj_dict['lon_0'], 140.7)
self.assertEqual(proj_dict['proj'], 'geos')
self.assertEqual(proj_dict['units'], 'm')
np.testing.assert_allclose(area_def.area_extent,
(592000.0038256242, 4132000.0267018233,
1592000.0102878273, 5132000.033164027))
def test_segment(self, fromfile, np2str):
"""Test segment navigation."""
np2str.side_effect = lambda x: x
m = mock.mock_open()
with mock.patch('satpy.readers.ahi_hsd.open', m, create=True):
fh = AHIHSDFileHandler(None, {
'segment_number': 8,
'total_segments': 10
}, None)
fh.proj_info = {
'CFAC': 40932549,
'COFF': 5500.5,
'LFAC': 40932549,
'LOFF': 5500.5,
'blocklength': 127,
'coeff_for_sd': 1737122264.0,
'distance_from_earth_center': 42164.0,
'earth_equatorial_radius': 6378.137,
'earth_polar_radius': 6356.7523,
'hblock_number': 3,
'req2_rpol2': 1.006739501,
'req2_rpol2_req2': 0.0066943844,
'resampling_size': 4,
'resampling_types': 0,
'rpol2_req2': 0.993305616,
'spare': '',
'sub_lon': 140.7
}
fh.data_info = {
'blocklength': 50,
'compression_flag_for_data': 0,
'hblock_number': 2,
'number_of_bits_per_pixel': 16,
'number_of_columns': 11000,
'number_of_lines': 1100,
'spare': ''
}
area_def = fh.get_area_def(None)
self.assertEqual(
area_def.proj_dict, {
'a': 6378137.0,
'b': 6356752.3,
'h': 35785863.0,
'lon_0': 140.7,
'proj': 'geos',
'units': 'm'
})
self.assertEqual(area_def.area_extent,
(-5500000.035542117, -3300000.021325271,
5500000.035542117, -2200000.0142168473))
def test_segment(self, fromfile, np2str):
"""Test segment navigation."""
np2str.side_effect = lambda x: x
m = mock.mock_open()
with mock.patch('satpy.readers.ahi_hsd.open', m, create=True):
fh = AHIHSDFileHandler(None, {'segment_number': 8, 'total_segments': 10}, None)
fh.proj_info = {'CFAC': 40932549,
'COFF': 5500.5,
'LFAC': 40932549,
'LOFF': 5500.5,
'blocklength': 127,
'coeff_for_sd': 1737122264.0,
'distance_from_earth_center': 42164.0,
'earth_equatorial_radius': 6378.137,
'earth_polar_radius': 6356.7523,
'hblock_number': 3,
'req2_rpol2': 1.006739501,
'req2_rpol2_req2': 0.0066943844,
'resampling_size': 4,
'resampling_types': 0,
'rpol2_req2': 0.993305616,
'spare': '',
'sub_lon': 140.7}
fh.data_info = {'blocklength': 50,
'compression_flag_for_data': 0,
'hblock_number': 2,
'number_of_bits_per_pixel': 16,
'number_of_columns': 11000,
'number_of_lines': 1100,
'spare': ''}
area_def = fh.get_area_def(None)
self.assertEqual(area_def.proj_dict, {'a': 6378137.0, 'b': 6356752.3,
'h': 35785863.0, 'lon_0': 140.7,
'proj': 'geos', 'units': 'm'})
self.assertEqual(area_def.area_extent, (-5500000.035542117, -3300000.021325271,
5500000.035542117, -2200000.0142168473))