def test_bound_crs__example(): proj_crs = ProjectedCRS( conversion=TransverseMercatorConversion( latitude_natural_origin=0, longitude_natural_origin=15, false_easting=2520000, false_northing=0, scale_factor_natural_origin=0.9996, ), geodetic_crs=GeographicCRS( datum=CustomDatum(ellipsoid="International 1909 (Hayford)") ), ) bound_crs = BoundCRS( source_crs=proj_crs, target_crs="WGS 84", transformation=ToWGS84Transformation( proj_crs.geodetic_crs, -122.74, -34.27, -22.83, -1.884, -3.4, -3.03, -15.62 ), ) with pytest.warns(UserWarning): assert bound_crs.to_dict() == { "ellps": "intl", "k": 0.9996, "lat_0": 0, "lon_0": 15, "no_defs": None, "proj": "tmerc", "towgs84": [-122.74, -34.27, -22.83, -1.884, -3.4, -3.03, -15.62], "type": "crs", "units": "m", "x_0": 2520000, "y_0": 0, }
def test_transverse_mercator_operation__defaults(): aeaop = TransverseMercatorConversion() assert aeaop.name == "unknown" assert aeaop.method_name == "Transverse Mercator" assert _to_dict(aeaop) == { "Latitude of natural origin": 0.0, "Longitude of natural origin": 0.0, "False easting": 0.0, "False northing": 0.0, "Scale factor at natural origin": 1.0, }
def _transverse_mercator(cf_params): """ http://cfconventions.org/cf-conventions/cf-conventions.html#_transverse_mercator """ return TransverseMercatorConversion( latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0), longitude_natural_origin=cf_params.get("longitude_of_central_meridian", 0.0), false_easting=cf_params.get("false_easting", 0.0), false_northing=cf_params.get("false_northing", 0.0), scale_factor_natural_origin=cf_params.get( "scale_factor_at_central_meridian", 1.0 ), )
def test_transverse_mercator_operation(): aeaop = TransverseMercatorConversion( latitude_natural_origin=1, longitude_natural_origin=2, false_easting=3, false_northing=4, scale_factor_natural_origin=0.5, ) assert aeaop.name == "unknown" assert aeaop.method_name == "Transverse Mercator" assert _to_dict(aeaop) == { "Latitude of natural origin": 1.0, "Longitude of natural origin": 2.0, "False easting": 3.0, "False northing": 4.0, "Scale factor at natural origin": 0.5, }