660 lines
25 KiB
Python
660 lines
25 KiB
Python
"""
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This module contains mappings necessary to convert from
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a CRS to a CF-1.8 compliant projection.
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http://cfconventions.org/cf-conventions/cf-conventions.html#appendix-grid-mappings
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"""
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import warnings
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from pyproj._crs import Datum, Ellipsoid, PrimeMeridian
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from pyproj.crs.coordinate_operation import (
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AlbersEqualAreaConversion,
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AzumuthalEquidistantConversion,
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GeostationarySatelliteConversion,
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HotineObliqueMercatorBConversion,
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LambertAzumuthalEqualAreaConversion,
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LambertConformalConic1SPConversion,
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LambertConformalConic2SPConversion,
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LambertCylindricalEqualAreaConversion,
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LambertCylindricalEqualAreaScaleConversion,
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MercatorAConversion,
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MercatorBConversion,
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OrthographicConversion,
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PolarStereographicAConversion,
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PolarStereographicBConversion,
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RotatedLatitudeLongitudeConversion,
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SinusoidalConversion,
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StereographicConversion,
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TransverseMercatorConversion,
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VerticalPerspectiveConversion,
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)
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from pyproj.crs.datum import CustomDatum, CustomEllipsoid, CustomPrimeMeridian
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from pyproj.exceptions import CRSError
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def _horizontal_datum_from_params(cf_params):
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# step 1: build ellipsoid
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ellipsoid = None
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ellipsoid_name = cf_params.get("reference_ellipsoid_name")
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try:
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ellipsoid = CustomEllipsoid(
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name=ellipsoid_name or "undefined",
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semi_major_axis=cf_params.get("semi_major_axis"),
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semi_minor_axis=cf_params.get("semi_minor_axis"),
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inverse_flattening=cf_params.get("inverse_flattening"),
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radius=cf_params.get("earth_radius"),
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)
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except CRSError:
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if ellipsoid_name:
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ellipsoid = Ellipsoid.from_name(ellipsoid_name)
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# step 2: build prime meridian
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prime_meridian = None
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prime_meridian_name = cf_params.get("prime_meridian_name")
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try:
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prime_meridian = CustomPrimeMeridian(
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name=prime_meridian_name or "undefined",
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longitude=cf_params["longitude_of_prime_meridian"],
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)
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except KeyError:
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if prime_meridian_name:
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prime_meridian = PrimeMeridian.from_name(prime_meridian_name)
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# step 3: build datum
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datum_name = cf_params.get("horizontal_datum_name")
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if ellipsoid or prime_meridian:
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return CustomDatum(
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name=datum_name or "undefined",
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ellipsoid=ellipsoid or "WGS 84",
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prime_meridian=prime_meridian or "Greenwich",
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)
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if datum_name:
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return Datum.from_name(datum_name)
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return None
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def _try_list_if_string(input_str):
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"""
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Attempt to convert string to list if it is a string
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"""
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if not isinstance(input_str, str):
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return input_str
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val_split = input_str.split(",")
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if len(val_split) > 1:
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return [float(sval.strip()) for sval in val_split]
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return input_str
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def _get_standard_parallels(standard_parallel):
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standard_parallel = _try_list_if_string(standard_parallel)
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try:
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first_parallel = float(standard_parallel)
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second_parallel = None
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except TypeError:
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first_parallel, second_parallel = standard_parallel
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return first_parallel, second_parallel
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def _albers_conical_equal_area(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_albers_equal_area
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"""
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first_parallel, second_parallel = _get_standard_parallels(
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cf_params["standard_parallel"]
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)
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return AlbersEqualAreaConversion(
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latitude_first_parallel=first_parallel,
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latitude_second_parallel=second_parallel or 0.0,
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latitude_false_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_false_origin=cf_params.get("longitude_of_central_meridian", 0.0),
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easting_false_origin=cf_params.get("false_easting", 0.0),
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northing_false_origin=cf_params.get("false_northing", 0.0),
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)
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def _azimuthal_equidistant(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#azimuthal-equidistant
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"""
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return AzumuthalEquidistantConversion(
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _geostationary(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_geostationary_projection
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"""
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try:
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sweep_angle_axis = cf_params["sweep_angle_axis"]
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except KeyError:
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sweep_angle_axis = {"x": "y", "y": "x"}[cf_params["fixed_angle_axis"].lower()]
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return GeostationarySatelliteConversion(
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sweep_angle_axis=sweep_angle_axis,
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satellite_height=cf_params["perspective_point_height"],
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _lambert_azimuthal_equal_area(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#lambert-azimuthal-equal-area
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"""
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return LambertAzumuthalEqualAreaConversion(
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _lambert_conformal_conic(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_lambert_conformal
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"""
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first_parallel, second_parallel = _get_standard_parallels(
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cf_params["standard_parallel"]
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)
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if second_parallel is not None:
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return LambertConformalConic2SPConversion(
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latitude_first_parallel=first_parallel,
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latitude_second_parallel=second_parallel,
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latitude_false_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_false_origin=cf_params.get("longitude_of_central_meridian", 0.0),
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easting_false_origin=cf_params.get("false_easting", 0.0),
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northing_false_origin=cf_params.get("false_northing", 0.0),
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)
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return LambertConformalConic1SPConversion(
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latitude_natural_origin=first_parallel,
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longitude_natural_origin=cf_params.get("longitude_of_central_meridian", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _lambert_cylindrical_equal_area(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_lambert_cylindrical_equal_area
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"""
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if "scale_factor_at_projection_origin" in cf_params:
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return LambertCylindricalEqualAreaScaleConversion(
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scale_factor_natural_origin=cf_params["scale_factor_at_projection_origin"],
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longitude_natural_origin=cf_params.get(
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"longitude_of_central_meridian", 0.0
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),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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return LambertCylindricalEqualAreaConversion(
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latitude_first_parallel=cf_params.get("standard_parallel", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_central_meridian", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _mercator(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_mercator
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"""
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if "scale_factor_at_projection_origin" in cf_params:
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return MercatorAConversion(
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latitude_natural_origin=cf_params.get("standard_parallel", 0.0),
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longitude_natural_origin=cf_params.get(
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"longitude_of_projection_origin", 0.0
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),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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scale_factor_natural_origin=cf_params["scale_factor_at_projection_origin"],
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)
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return MercatorBConversion(
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latitude_first_parallel=cf_params.get("standard_parallel", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _oblique_mercator(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_oblique_mercator
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"""
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return HotineObliqueMercatorBConversion(
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latitude_projection_centre=cf_params["latitude_of_projection_origin"],
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longitude_projection_centre=cf_params["longitude_of_projection_origin"],
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azimuth_initial_line=cf_params["azimuth_of_central_line"],
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angle_from_rectified_to_skew_grid=0.0,
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scale_factor_on_initial_line=cf_params.get(
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"scale_factor_at_projection_origin", 1.0
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),
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easting_projection_centre=cf_params.get("false_easting", 0.0),
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northing_projection_centre=cf_params.get("false_northing", 0.0),
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)
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def _orthographic(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_orthographic
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"""
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return OrthographicConversion(
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _polar_stereographic(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#polar-stereographic
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"""
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if "standard_parallel" in cf_params:
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return PolarStereographicBConversion(
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latitude_standard_parallel=cf_params["standard_parallel"],
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longitude_origin=cf_params["straight_vertical_longitude_from_pole"],
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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return PolarStereographicAConversion(
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latitude_natural_origin=cf_params["latitude_of_projection_origin"],
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longitude_natural_origin=cf_params["straight_vertical_longitude_from_pole"],
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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scale_factor_natural_origin=cf_params.get(
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"scale_factor_at_projection_origin", 1.0
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),
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)
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def _sinusoidal(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_sinusoidal
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"""
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return SinusoidalConversion(
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _stereographic(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_stereographic
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"""
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return StereographicConversion(
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_projection_origin", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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scale_factor_natural_origin=cf_params.get(
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"scale_factor_at_projection_origin", 1.0
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),
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)
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def _transverse_mercator(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_transverse_mercator
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"""
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return TransverseMercatorConversion(
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latitude_natural_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_natural_origin=cf_params.get("longitude_of_central_meridian", 0.0),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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scale_factor_natural_origin=cf_params.get(
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"scale_factor_at_central_meridian", 1.0
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),
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)
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def _vertical_perspective(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#vertical-perspective
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"""
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return VerticalPerspectiveConversion(
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viewpoint_height=cf_params["perspective_point_height"],
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latitude_topocentric_origin=cf_params.get("latitude_of_projection_origin", 0.0),
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longitude_topocentric_origin=cf_params.get(
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"longitude_of_projection_origin", 0.0
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),
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false_easting=cf_params.get("false_easting", 0.0),
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false_northing=cf_params.get("false_northing", 0.0),
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)
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def _rotated_latitude_longitude(cf_params):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_rotated_pole
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"""
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return RotatedLatitudeLongitudeConversion(
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o_lat_p=cf_params["grid_north_pole_latitude"],
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o_lon_p=cf_params["grid_north_pole_longitude"],
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lon_0=cf_params.get("north_pole_grid_longitude", 0.0),
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)
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_GRID_MAPPING_NAME_MAP = {
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"albers_conical_equal_area": _albers_conical_equal_area,
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"azimuthal_equidistant": _azimuthal_equidistant,
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"geostationary": _geostationary,
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"lambert_azimuthal_equal_area": _lambert_azimuthal_equal_area,
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"lambert_conformal_conic": _lambert_conformal_conic,
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"lambert_cylindrical_equal_area": _lambert_cylindrical_equal_area,
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"mercator": _mercator,
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"oblique_mercator": _oblique_mercator,
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"orthographic": _orthographic,
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"polar_stereographic": _polar_stereographic,
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"sinusoidal": _sinusoidal,
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"stereographic": _stereographic,
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"transverse_mercator": _transverse_mercator,
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"vertical_perspective": _vertical_perspective,
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}
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_GEOGRAPHIC_GRID_MAPPING_NAME_MAP = {
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"rotated_latitude_longitude": _rotated_latitude_longitude,
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}
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def _to_dict(operation):
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param_dict = {}
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for param in operation.params:
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param_dict[param.name.lower().replace(" ", "_")] = param.value
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return param_dict
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def _albers_conical_equal_area__to_cf(conversion):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_albers_equal_area
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"""
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params = _to_dict(conversion)
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return {
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"grid_mapping_name": "albers_conical_equal_area",
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"standard_parallel": (
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params["latitude_of_1st_standard_parallel"],
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params["latitude_of_2nd_standard_parallel"],
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),
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"latitude_of_projection_origin": params["latitude_of_false_origin"],
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"longitude_of_central_meridian": params["longitude_of_false_origin"],
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"false_easting": params["easting_at_false_origin"],
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"false_northing": params["northing_at_false_origin"],
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}
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def _azimuthal_equidistant__to_cf(conversion):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#azimuthal-equidistant
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"""
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params = _to_dict(conversion)
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return {
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"grid_mapping_name": "azimuthal_equidistant",
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"latitude_of_projection_origin": params["latitude_of_natural_origin"],
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"longitude_of_projection_origin": params["longitude_of_natural_origin"],
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"false_easting": params["false_easting"],
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"false_northing": params["false_northing"],
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}
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def _geostationary__to_cf(conversion):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#_geostationary_projection
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"""
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params = _to_dict(conversion)
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sweep_angle_axis = "y"
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if conversion.method_name.lower().replace(" ", "_").endswith("(sweep_x)"):
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sweep_angle_axis = "x"
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return {
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"grid_mapping_name": "geostationary",
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"sweep_angle_axis": sweep_angle_axis,
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"perspective_point_height": params["satellite_height"],
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# geostationary satellites orbit arount equator
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# so latitude_of_natural_origin is often left off and assumed to be 0.0
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"latitude_of_projection_origin": params.get("latitude_of_natural_origin", 0.0),
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"longitude_of_projection_origin": params["longitude_of_natural_origin"],
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"false_easting": params["false_easting"],
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"false_northing": params["false_northing"],
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}
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def _lambert_azimuthal_equal_area__to_cf(conversion):
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"""
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http://cfconventions.org/cf-conventions/cf-conventions.html#lambert-azimuthal-equal-area
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"""
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params = _to_dict(conversion)
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return {
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"grid_mapping_name": "lambert_azimuthal_equal_area",
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"latitude_of_projection_origin": params["latitude_of_natural_origin"],
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"longitude_of_projection_origin": params["longitude_of_natural_origin"],
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"false_easting": params["false_easting"],
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"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _lambert_conformal_conic__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_lambert_conformal
|
|
"""
|
|
params = _to_dict(conversion)
|
|
if conversion.method_name.lower().endswith("(2sp)"):
|
|
return {
|
|
"grid_mapping_name": "lambert_conformal_conic",
|
|
"standard_parallel": (
|
|
params["latitude_of_1st_standard_parallel"],
|
|
params["latitude_of_2nd_standard_parallel"],
|
|
),
|
|
"latitude_of_projection_origin": params["latitude_of_false_origin"],
|
|
"longitude_of_central_meridian": params["longitude_of_false_origin"],
|
|
"false_easting": params["easting_at_false_origin"],
|
|
"false_northing": params["northing_at_false_origin"],
|
|
}
|
|
return {
|
|
"grid_mapping_name": "lambert_conformal_conic",
|
|
"standard_parallel": params["latitude_of_natural_origin"],
|
|
"longitude_of_central_meridian": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _lambert_cylindrical_equal_area__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_lambert_cylindrical_equal_area
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "lambert_cylindrical_equal_area",
|
|
"standard_parallel": params["latitude_of_1st_standard_parallel"],
|
|
"longitude_of_central_meridian": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _mercator__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_mercator
|
|
"""
|
|
params = _to_dict(conversion)
|
|
if conversion.method_name.lower().replace(" ", "_").endswith("(variant_a)"):
|
|
return {
|
|
"grid_mapping_name": "mercator",
|
|
"standard_parallel": params["latitude_of_natural_origin"],
|
|
"longitude_of_projection_origin": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
"scale_factor_at_projection_origin": params[
|
|
"scale_factor_at_natural_origin"
|
|
],
|
|
}
|
|
return {
|
|
"grid_mapping_name": "mercator",
|
|
"standard_parallel": params["latitude_of_1st_standard_parallel"],
|
|
"longitude_of_projection_origin": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _oblique_mercator__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_oblique_mercator
|
|
"""
|
|
params = _to_dict(conversion)
|
|
if params["angle_from_rectified_to_skew_grid"] != 0:
|
|
warnings.warn(
|
|
"angle from rectified to skew grid parameter lost in conversion to CF"
|
|
)
|
|
return {
|
|
"grid_mapping_name": "oblique_mercator",
|
|
"latitude_of_projection_origin": params["latitude_of_projection_centre"],
|
|
"longitude_of_projection_origin": params["longitude_of_projection_centre"],
|
|
"azimuth_of_central_line": params["azimuth_of_initial_line"],
|
|
"scale_factor_at_projection_origin": params["scale_factor_on_initial_line"],
|
|
"false_easting": params["easting_at_projection_centre"],
|
|
"false_northing": params["northing_at_projection_centre"],
|
|
}
|
|
|
|
|
|
def _orthographic__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_orthographic
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "orthographic",
|
|
"latitude_of_projection_origin": params["latitude_of_natural_origin"],
|
|
"longitude_of_projection_origin": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _polar_stereographic__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#polar-stereographic
|
|
"""
|
|
params = _to_dict(conversion)
|
|
if conversion.method_name.lower().endswith("(variant b)"):
|
|
return {
|
|
"grid_mapping_name": "polar_stereographic",
|
|
"standard_parallel": params["latitude_of_standard_parallel"],
|
|
"straight_vertical_longitude_from_pole": params["longitude_of_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
return {
|
|
"grid_mapping_name": "polar_stereographic",
|
|
"latitude_of_projection_origin": params["latitude_of_natural_origin"],
|
|
"straight_vertical_longitude_from_pole": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
"scale_factor_at_projection_origin": params["scale_factor_at_natural_origin"],
|
|
}
|
|
|
|
|
|
def _sinusoidal__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_sinusoidal
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "sinusoidal",
|
|
"longitude_of_projection_origin": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _stereographic__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_stereographic
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "stereographic",
|
|
"latitude_of_projection_origin": params["latitude_of_natural_origin"],
|
|
"longitude_of_projection_origin": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
"scale_factor_at_projection_origin": params["scale_factor_at_natural_origin"],
|
|
}
|
|
|
|
|
|
def _transverse_mercator__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_transverse_mercator
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "transverse_mercator",
|
|
"latitude_of_projection_origin": params["latitude_of_natural_origin"],
|
|
"longitude_of_central_meridian": params["longitude_of_natural_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
"scale_factor_at_central_meridian": params["scale_factor_at_natural_origin"],
|
|
}
|
|
|
|
|
|
def _vertical_perspective__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#vertical-perspective
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "vertical_perspective",
|
|
"perspective_point_height": params["viewpoint_height"],
|
|
"latitude_of_projection_origin": params["latitude_of_topocentric_origin"],
|
|
"longitude_of_projection_origin": params["longitude_of_topocentric_origin"],
|
|
"false_easting": params["false_easting"],
|
|
"false_northing": params["false_northing"],
|
|
}
|
|
|
|
|
|
def _rotated_latitude_longitude__to_cf(conversion):
|
|
"""
|
|
http://cfconventions.org/cf-conventions/cf-conventions.html#_rotated_pole
|
|
"""
|
|
params = _to_dict(conversion)
|
|
return {
|
|
"grid_mapping_name": "rotated_latitude_longitude",
|
|
"grid_north_pole_latitude": params["o_lat_p"],
|
|
"grid_north_pole_longitude": params["o_lon_p"],
|
|
"north_pole_grid_longitude": params["lon_0"],
|
|
}
|
|
|
|
|
|
_INVERSE_GRID_MAPPING_NAME_MAP = {
|
|
"albers_equal_area": _albers_conical_equal_area__to_cf,
|
|
"modified_azimuthal_equidistant": _azimuthal_equidistant__to_cf,
|
|
"geostationary_satellite_(sweep_x)": _geostationary__to_cf,
|
|
"geostationary_satellite_(sweep_y)": _geostationary__to_cf,
|
|
"lambert_azimuthal_equal_area": _lambert_azimuthal_equal_area__to_cf,
|
|
"lambert_conic_conformal_(2sp)": _lambert_conformal_conic__to_cf,
|
|
"lambert_conic_conformal_(1sp)": _lambert_conformal_conic__to_cf,
|
|
"lambert_cylindrical_equal_area": _lambert_cylindrical_equal_area__to_cf,
|
|
"mercator_(variant_a)": _mercator__to_cf,
|
|
"mercator_(variant_b)": _mercator__to_cf,
|
|
"hotine_oblique_mercator_(variant_b)": _oblique_mercator__to_cf,
|
|
"orthographic": _orthographic__to_cf,
|
|
"polar_stereographic_(variant_a)": _polar_stereographic__to_cf,
|
|
"polar_stereographic_(variant_b)": _polar_stereographic__to_cf,
|
|
"sinusoidal": _sinusoidal__to_cf,
|
|
"stereographic": _stereographic__to_cf,
|
|
"transverse_mercator": _transverse_mercator__to_cf,
|
|
"vertical_perspective": _vertical_perspective__to_cf,
|
|
}
|
|
|
|
_INVERSE_GEOGRAPHIC_GRID_MAPPING_NAME_MAP = {
|
|
"proj ob_tran o_proj=longlat": _rotated_latitude_longitude__to_cf,
|
|
"proj ob_tran o_proj=lonlat": _rotated_latitude_longitude__to_cf,
|
|
"proj ob_tran o_proj=latlon": _rotated_latitude_longitude__to_cf,
|
|
"proj ob_tran o_proj=latlong": _rotated_latitude_longitude__to_cf,
|
|
}
|