def test_simple(self):
# Check that a projection set up with all the defaults is correctly
# converted to a cartopy projection.
merc_cs = Mercator()
res = merc_cs.as_cartopy_projection()
expected = ccrs.Mercator(globe=ccrs.Globe())
self.assertEqual(res, expected)
def test_extra_kwargs(self):
longitude_of_projection_origin = 90.0
true_scale_lat = 14.0
false_easting = 13
false_northing = 12
ellipsoid = GeogCS(semi_major_axis=6377563.396,
semi_minor_axis=6356256.909)
merc_cs = Mercator(
longitude_of_projection_origin,
ellipsoid=ellipsoid,
standard_parallel=true_scale_lat,
false_easting=false_easting,
false_northing=false_northing,
)
expected = ccrs.Mercator(
central_longitude=longitude_of_projection_origin,
globe=ccrs.Globe(
semimajor_axis=6377563.396,
semiminor_axis=6356256.909,
ellipse=None,
),
latitude_true_scale=true_scale_lat,
false_easting=false_easting,
false_northing=false_northing,
)
res = merc_cs.as_cartopy_projection()
self.assertEqual(res, expected)
def test_extra_kwargs(self):
longitude_of_projection_origin = 90.0
true_scale_lat = 14.0
ellipsoid = GeogCS(semi_major_axis=6377563.396,
semi_minor_axis=6356256.909)
merc_cs = Mercator(
longitude_of_projection_origin,
ellipsoid=ellipsoid,
standard_parallel=true_scale_lat)
expected = ccrs.Mercator(
central_longitude=longitude_of_projection_origin,
globe=ccrs.Globe(semimajor_axis=6377563.396,
semiminor_axis=6356256.909, ellipse=None),
latitude_true_scale=true_scale_lat)
res = merc_cs.as_cartopy_projection()
self.assertEqual(res, expected)