def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_projection_origin = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.ortho_cs = Orthographic(self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
ellipsoid=self.ellipsoid)
class Test_as_cartopy_projection(tests.IrisTest):
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_projection_origin = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.ortho_cs = Orthographic(
self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
ellipsoid=self.ellipsoid,
)
def test_projection_creation(self):
res = self.ortho_cs.as_cartopy_projection()
globe = ccrs.Globe(
semimajor_axis=self.semi_major_axis,
semiminor_axis=self.semi_minor_axis,
ellipse=None,
)
expected = ccrs.Orthographic(
self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
globe=globe,
)
self.assertEqual(res, expected)
def test__fail_unsupported_coord_system(self):
cs = Orthographic(0, 0)
test_cube = self._make_test_cube(cs=cs)
with self.assertRaisesRegexp(
ValueError,
'Grib saving is not supported for coordinate system:'):
grid_definition_section(test_cube, self.mock_grib)
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_projection_origin = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.ortho_cs = Orthographic(self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
ellipsoid=self.ellipsoid)
class Test_as_cartopy_projection(tests.IrisTest):
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_projection_origin = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.ortho_cs = Orthographic(self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
ellipsoid=self.ellipsoid)
def test_projection_creation(self):
res = self.ortho_cs.as_cartopy_projection()
globe = ccrs.Globe(semimajor_axis=self.semi_major_axis,
semiminor_axis=self.semi_minor_axis,
ellipse=None)
expected = ccrs.Orthographic(
self.latitude_of_projection_origin,
self.longitude_of_projection_origin,
globe=globe)
self.assertEqual(res, expected)
def test_optional_args_None(self):
# Check expected defaults with optional args=None.
crs = Orthographic(0, 0, false_easting=None, false_northing=None)
self._check_crs_defaults(crs)
def test_no_optional_args(self):
# Check expected defaults with no optional args.
crs = Orthographic(0, 0)
self._check_crs_defaults(crs)
def test_set_optional_args(self):
# Check that setting the optional (non-ellipse) args works.
crs = Orthographic(0, 0, false_easting=100, false_northing=-203.7)
self.assertEqualAndKind(crs.false_easting, 100.0)
self.assertEqualAndKind(crs.false_northing, -203.7)