class Test_as_cartopy_crs(tests.IrisTest):
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_central_meridian = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.false_easting = 0.0
self.false_northing = 0.0
self.standard_parallels = (-18., -36.)
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.aea_cs = AlbersEqualArea(self.latitude_of_projection_origin,
self.longitude_of_central_meridian,
self.false_easting,
self.false_northing,
self.standard_parallels,
ellipsoid=self.ellipsoid)
def test_crs_creation(self):
res = self.aea_cs.as_cartopy_crs()
globe = ccrs.Globe(semimajor_axis=self.semi_major_axis,
semiminor_axis=self.semi_minor_axis,
ellipse=None)
expected = ccrs.AlbersEqualArea(self.longitude_of_central_meridian,
self.latitude_of_projection_origin,
self.false_easting,
self.false_northing,
self.standard_parallels,
globe=globe)
self.assertEqual(res, expected)
class Test_as_cartopy_crs(tests.IrisTest):
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_central_meridian = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.false_easting = 0.0
self.false_northing = 0.0
self.standard_parallels = (-18., -36.)
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.aea_cs = AlbersEqualArea(
self.latitude_of_projection_origin,
self.longitude_of_central_meridian,
self.false_easting,
self.false_northing,
self.standard_parallels,
ellipsoid=self.ellipsoid)
def test_crs_creation(self):
res = self.aea_cs.as_cartopy_crs()
globe = ccrs.Globe(semimajor_axis=self.semi_major_axis,
semiminor_axis=self.semi_minor_axis,
ellipse=None)
expected = ccrs.AlbersEqualArea(
self.longitude_of_central_meridian,
self.latitude_of_projection_origin,
self.false_easting,
self.false_northing,
self.standard_parallels,
globe=globe)
self.assertEqual(res, expected)
class Test_as_cartopy_crs(tests.IrisTest):
def setUp(self):
self.latitude_of_projection_origin = 0.0
self.longitude_of_central_meridian = 0.0
self.semi_major_axis = 6377563.396
self.semi_minor_axis = 6356256.909
self.false_easting = 0.0
self.false_northing = 0.0
self.standard_parallels = (-18.0, -36.0)
self.ellipsoid = GeogCS(self.semi_major_axis, self.semi_minor_axis)
self.aea_cs = AlbersEqualArea(
self.latitude_of_projection_origin,
self.longitude_of_central_meridian,
self.false_easting,
self.false_northing,
self.standard_parallels,
ellipsoid=self.ellipsoid,
)
def test_crs_creation(self):
res = self.aea_cs.as_cartopy_crs()
globe = ccrs.Globe(
semimajor_axis=self.semi_major_axis,
semiminor_axis=self.semi_minor_axis,
ellipse=None,
)
expected = ccrs.AlbersEqualArea(
self.longitude_of_central_meridian,
self.latitude_of_projection_origin,
self.false_easting,
self.false_northing,
self.standard_parallels,
globe=globe,
)
self.assertEqual(res, expected)
def test_fail_too_few_parallels(self):
emsg = "parallels"
with self.assertRaisesRegex(ValueError, emsg):
AlbersEqualArea(standard_parallels=())
def test_fail_too_many_parallels(self):
emsg = "parallels"
with self.assertRaisesRegex(ValueError, emsg):
AlbersEqualArea(standard_parallels=(1, 2, 3))