rasterio/tests/test_crs.py
Dr. Andrew Annex a6dd570404
Adds CRS.geodetic_crs property (#3218)
* Adds CRS.to_geodetic function

* inspired by pyproj's .geodetic_crs function to return the
  corresponding base geographic CRS for a given CRS
* helpful for projections that may not use common geographic CRSs

* switch to else rather than finally in to_geodetic

* improve docstring and remove todos

* fixed test comment

* added .geodetic_crs property following pyproj's approach

* change to throw exception, added an aux.xml to .gitignore I keep almost committing

* Update rasterio/crs.pyx

Co-authored-by: Sean Gillies <sean.gillies@gmail.com>

* Update rasterio/crs.pyx

Co-authored-by: Sean Gillies <sean.gillies@gmail.com>

---------

Co-authored-by: Sean Gillies <sean.gillies@gmail.com>
2024-11-08 14:58:57 -07:00

696 lines
22 KiB
Python

"""crs module tests"""
import copy
import json
import logging
import pickle
import subprocess
import pytest
import rasterio
from rasterio._base import _can_create_osr
from rasterio.crs import CRS, epsg_treats_as_latlong, epsg_treats_as_northingeasting
from rasterio.enums import WktVersion
from rasterio.env import env_ctx_if_needed, Env
from rasterio.errors import CRSError
# Items like "D_North_American_1983" characterize the Esri dialect
# of WKT SRS.
ESRI_PROJECTION_STRING = (
'PROJCS["USA_Contiguous_Albers_Equal_Area_Conic_USGS_version",'
'GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",'
'SPHEROID["GRS_1980",6378137.0,298.257222101]],'
'PRIMEM["Greenwich",0.0],'
'UNIT["Degree",0.0174532925199433]],'
'PROJECTION["Albers"],'
'PARAMETER["false_easting",0.0],'
'PARAMETER["false_northing",0.0],'
'PARAMETER["central_meridian",-96.0],'
'PARAMETER["standard_parallel_1",29.5],'
'PARAMETER["standard_parallel_2",45.5],'
'PARAMETER["latitude_of_origin",23.0],'
'UNIT["Meter",1.0],'
'VERTCS["NAVD_1988",'
'VDATUM["North_American_Vertical_Datum_1988"],'
'PARAMETER["Vertical_Shift",0.0],'
'PARAMETER["Direction",1.0],UNIT["Centimeter",0.01]]]')
class CustomCRS:
def to_wkt(self):
return CRS.from_epsg(4326).to_wkt()
def test_crs_constructor_dict():
"""Can create a CRS from a dict"""
crs = CRS({'init': 'epsg:3857'})
assert 'PROJCS["WGS 84 / Pseudo-Mercator"' in crs.wkt
def test_crs_constructor_keywords():
"""Can create a CRS from keyword args, ignoring unknowns"""
# Note: `init="epsg:dddd"` is no longer recommended usage.
crs = CRS(init='epsg:3857', foo='bar')
assert 'PROJCS["WGS 84 / Pseudo-Mercator"' in crs.wkt
def test_crs_constructor_crs_obj():
"""Can create a CRS from a CRS obj"""
crs = CRS(CRS.from_epsg(3857))
assert 'PROJCS["WGS 84 / Pseudo-Mercator"' in crs.wkt
@pytest.fixture(scope='session')
def profile_rgb_byte_tif(path_rgb_byte_tif):
with rasterio.open(path_rgb_byte_tif) as src:
return src.profile
def test_read_epsg():
with rasterio.open('tests/data/RGB.byte.tif') as src:
assert src.crs.to_epsg() == 32618
def test_read_compdcs():
"""Expect no match for a single EPSG for this COMPDCS"""
with rasterio.open('zip://tests/data/ak-compdcs.zip!test.tif') as src:
assert src.crs.to_epsg() == None
def test_read_no_crs():
"""crs of a dataset with no SRS is None"""
with rasterio.open('tests/data/389225main_sw_1965_1024.jpg') as src:
assert src.crs is None
# Ensure that CRS sticks when we write a file.
@pytest.mark.gdalbin
def test_write_3857(tmpdir):
src_path = str(tmpdir.join('lol.tif'))
subprocess.call([
'gdalwarp', '-t_srs', 'epsg:3857',
'tests/data/RGB.byte.tif', src_path])
dst_path = str(tmpdir.join('wut.tif'))
with rasterio.open(src_path) as src:
with rasterio.open(dst_path, 'w', **src.meta) as dst:
assert dst.crs.to_epsg() == 3857
info = subprocess.check_output([
'gdalinfo', dst_path])
# WKT string may vary a bit w.r.t GDAL versions
assert '"WGS 84 / Pseudo-Mercator"' in info.decode('utf-8')
def test_write_bogus_fails(tmpdir, profile_rgb_byte_tif):
src_path = str(tmpdir.join('lol.tif'))
profile = profile_rgb_byte_tif.copy()
profile['crs'] = ['foo']
with pytest.raises(CRSError):
rasterio.open(src_path, 'w', **profile)
# TODO: switch to DatasetWriter here and don't require a .start().
def test_from_proj4_json():
json_str = '{"proj": "longlat", "ellps": "WGS84", "datum": "WGS84"}'
crs_dict = CRS.from_string(json_str)
assert crs_dict == json.loads(json_str)
# Test with invalid JSON code
with pytest.raises(ValueError):
assert CRS.from_string('{foo: bar}')
def test_from_epsg():
assert CRS.from_epsg(4326)._epsg == 4326
def test_from_epsg_fail():
with pytest.raises(ValueError):
CRS.from_epsg(0)
def test_from_epsg_string():
assert CRS.from_string("epsg:4326")._epsg == 4326
def test_from_epsg_string_fail():
with pytest.raises(ValueError):
CRS.from_string("epsg:xyz")
def test_from_epsg_overflow():
with pytest.raises(CRSError):
# the argument is large enough to cause an overflow in Cython
CRS.from_epsg(1111111111111111111111)
def test_from_string():
wgs84_crs = CRS.from_string("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs")
assert wgs84_crs.to_dict() == {"proj": "longlat", "datum": "WGS84", "no_defs": True}
def test_from_string_2():
# Make sure this doesn't get handled using the from_epsg() even though 'epsg' is in the string
epsg_init_crs = CRS.from_string("+init=epsg:26911")
assert epsg_init_crs.to_dict() == {
"proj": "utm",
"zone": 11,
"datum": "NAD83",
"units": "m",
"no_defs": True,
}
@pytest.mark.parametrize('proj,expected', [({'init': 'epsg:4326'}, True), ({'init': 'epsg:3857'}, False)])
def test_is_geographic(proj, expected):
assert CRS(proj).is_geographic is expected
def test_is_geographic_from_string():
wgs84_crs = CRS.from_string('+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs')
assert wgs84_crs.is_geographic is True
nad27_crs = CRS.from_string('+proj=longlat +ellps=clrk66 +datum=NAD27 +no_defs')
assert nad27_crs.is_geographic is True
lcc_crs = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0')
assert lcc_crs.is_geographic is False
def test_is_projected():
assert CRS({'init': 'epsg:3857'}).is_projected is True
lcc_crs = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0')
assert CRS(lcc_crs).is_projected is True
wgs84_crs = CRS.from_string('+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs')
assert CRS(wgs84_crs).is_projected is False
@pytest.mark.parametrize('epsg_code', [3857, 4326, 26913, 32618])
def test_equality_from_epsg(epsg_code):
assert CRS.from_epsg(epsg_code) == CRS.from_epsg(epsg_code)
@pytest.mark.parametrize('epsg_code', [3857, 4326, 26913, 32618])
def test_equality_from_dict(epsg_code):
assert CRS.from_dict(init=f"epsg:{epsg_code}") == CRS.from_dict(
init=f"epsg:{epsg_code}"
)
def test_crs_equals():
crs1 = CRS({'init': 'epsg:4326'})
assert CRS({'init': 'epsg:4326'}).equals(crs1)
def test_crs_equals__ignore_axis_order():
crs1 = CRS({'init': 'epsg:4326'})
assert CRS({'init': 'epsg:4326'}).equals(crs1, ignore_axis_order=True)
def test_is_same_crs():
# Make sure that same projection with different parameter are not equal
lcc_crs1 = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0')
lcc_crs2 = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=45 +lat_0=0')
assert lcc_crs1 != lcc_crs2
def test_null_crs_equality():
assert CRS() == CRS()
a = CRS()
assert a == a
assert not a != a
def test_null_and_valid_crs_equality():
assert (CRS() == CRS(init='epsg:4326')) is False
def test_to_string():
assert CRS({'init': 'epsg:4326'}).to_string() == "EPSG:4326"
def test_is_valid_false():
with Env(), pytest.raises(CRSError):
CRS(init='epsg:432600').is_valid
def test_is_valid():
assert CRS(init='epsg:4326').is_valid
@pytest.mark.parametrize('arg', ['{}', '[]', ''])
def test_empty_json(arg):
with Env(), pytest.raises(CRSError):
CRS.from_string(arg)
@pytest.mark.parametrize('arg', [None, {}, ''])
def test_can_create_osr_none_err(arg):
"""Passing None or empty fails"""
assert not _can_create_osr(arg)
def test_can_create_osr():
assert _can_create_osr({'init': 'epsg:4326'})
assert _can_create_osr('epsg:4326')
@pytest.mark.parametrize('arg', ['epsg:-1', 'foo'])
def test_can_create_osr_invalid(arg):
"""invalid CRS definitions fail"""
with Env():
assert not _can_create_osr(arg)
def test_can_create_osr_invalid_epsg_0():
assert not _can_create_osr('epsg:')
def test_has_wkt_property():
assert CRS({'init': 'epsg:4326'}).wkt.startswith('GEOGCS["WGS 84",DATUM')
def test_repr():
assert repr(CRS({'init': 'epsg:4326'})).startswith("CRS.from_epsg(4326)")
def test_dunder_str():
assert str(CRS({'init': 'epsg:4326'})) == CRS({'init': 'epsg:4326'}).to_string()
def test_epsg_code_true():
assert CRS({'init': 'epsg:4326'}).is_epsg_code
def test_epsg():
assert CRS({'init': 'epsg:4326'}).to_epsg() == 4326
assert CRS.from_string('+proj=longlat +datum=WGS84 +no_defs').to_epsg() == 4326
def test_epsg__no_code_available():
lcc_crs = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc '
'+x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0')
assert lcc_crs.to_epsg() is None
def test_crs_4326_if_equivalent_crs84():
crs1 = CRS.from_epsg(4326)
crs2 = CRS.from_string("OGC:CRS84")
assert not crs1.equals(crs2, ignore_axis_order=False)
assert crs1.equals(crs2, ignore_axis_order=True)
assert not crs1 == crs2
def test_crs_OSR_equivalence():
crs1 = CRS.from_string('+proj=longlat +datum=WGS84 +no_defs')
crs2 = CRS.from_string('+proj=latlong +datum=WGS84 +no_defs')
assert crs1 == crs2
def test_crs_OSR_no_equivalence():
crs1 = CRS.from_string('+proj=longlat +datum=WGS84 +no_defs')
crs2 = CRS.from_string('+proj=longlat +datum=NAD27 +no_defs')
assert crs1 != crs2
def test_safe_osr_release(tmpdir):
log = logging.getLogger('rasterio._gdal')
log.setLevel(logging.DEBUG)
logfile = str(tmpdir.join('test.log'))
fh = logging.FileHandler(logfile)
log.addHandler(fh)
with rasterio.Env():
CRS({}) == CRS({})
log = open(logfile).read()
assert "Pointer 'hSRS' is NULL in 'OSRRelease'" not in log
def test_from_wkt():
wgs84 = CRS.from_string('+proj=longlat +datum=WGS84 +no_defs')
from_wkt = CRS.from_wkt(wgs84.wkt)
assert wgs84.wkt == from_wkt.wkt
def test_from_wkt_invalid():
with Env(), pytest.raises(CRSError):
CRS.from_wkt('trash')
def test_from_user_input_epsg():
assert CRS.from_user_input("epsg:4326")._epsg == 4326
@pytest.mark.parametrize("version", ["WKT2_2019", WktVersion.WKT2_2019])
def test_to_wkt__version(version):
assert CRS.from_epsg(4326).to_wkt(version=version).startswith('GEOGCRS["WGS 84",')
def test_to_wkt__env_version():
with Env(OSR_WKT_FORMAT="WKT2_2018"):
assert CRS.from_epsg(4326).to_wkt().startswith('GEOGCRS["WGS 84",')
def test_to_wkt__version_invalid():
with pytest.raises(ValueError):
CRS.from_epsg(4326).to_wkt(version="INVALID")
def test_compound_crs():
wkt = """COMPD_CS["unknown",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4326"]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1.0,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]"""
assert CRS.from_wkt(wkt).wkt.startswith('COMPD_CS')
def test_dataset_compound_crs():
with rasterio.open("tests/data/compdcs.vrt") as dataset:
assert dataset.crs.wkt.startswith('COMPD_CS')
@pytest.mark.wheel
def test_environ_patch(gdalenv, monkeypatch):
"""PROJ_LIB (PROJ < 9.1) | PROJ_DATA (PROJ 9.1+) is patched when rasterio._crs is imported"""
monkeypatch.delenv('GDAL_DATA', raising=False)
monkeypatch.delenv('PROJ_DATA', raising=False)
monkeypatch.delenv('PROJ_LIB', raising=False)
with env_ctx_if_needed():
assert CRS.from_epsg(4326) != CRS(units='m', proj='aeqd', ellps='WGS84', datum='WGS84', lat_0=-17.0, lon_0=-44.0)
def test_exception():
"""Get the exception we expect"""
with pytest.raises(CRSError):
CRS.from_wkt("bogus")
def test_exception_proj4():
"""Get the exception message we expect"""
with pytest.raises(CRSError):
CRS.from_proj4("+proj=bogus")
@pytest.mark.parametrize('projection_string', [ESRI_PROJECTION_STRING])
def test_implicit_proj_dict(projection_string):
"""Ensure that old behavior is preserved"""
assert CRS.from_wkt(projection_string)['proj'] == 'aea'
def test_capitalized_epsg_init():
"""Ensure that old behavior is preserved"""
assert CRS(init='EPSG:4326').to_epsg() == 4326
def test_issue1609_wktext_a():
"""Check on fix of issue 1609"""
src_proj = {'ellps': 'WGS84',
'proj': 'stere',
'lat_0': -90.0,
'lon_0': 0.0,
'x_0': 0.0,
'y_0': 0.0,
'lat_ts': -70,
'no_defs': True}
wkt = CRS(src_proj).wkt
assert 'PROJECTION["Polar_Stereographic"]' in wkt
assert 'PARAMETER["latitude_of_origin",-70]' in wkt
def test_empty_crs_str():
"""str(CRS()) should be empty string"""
assert str(CRS()) == ''
def test_issue1620():
"""Different forms of EPSG:3857 are equal"""
assert CRS.from_wkt('PROJCS["WGS 84 / Pseudo-Mercator",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs"],AUTHORITY["EPSG","3857"]]') == CRS.from_dict(init='epsg:3857')
@pytest.mark.parametrize('factory,arg', [(CRS.from_epsg, 3857), (CRS.from_dict, {'ellps': 'WGS84', 'proj': 'stere', 'lat_0': -90.0, 'lon_0': 0.0, 'x_0': 0.0, 'y_0': 0.0, 'lat_ts': -70, 'no_defs': True})])
def test_pickle(factory, arg):
"""A CRS is pickleable"""
crs1 = factory(arg)
crs2 = pickle.loads(pickle.dumps(crs1))
assert crs2 == crs1
def test_linear_units():
"""CRS linear units can be had"""
assert CRS.from_epsg(3857).linear_units == 'metre'
assert CRS.from_epsg(2261).linear_units == 'US survey foot'
assert CRS.from_epsg(4326).linear_units == 'unknown'
def test_linear_units_factor():
"""CRS linear units can be had"""
assert CRS.from_epsg(3857).linear_units_factor[0] == 'metre'
assert CRS.from_epsg(3857).linear_units_factor[1] == 1.0
assert CRS.from_epsg(2261).linear_units_factor[0] == 'US survey foot'
assert CRS.from_epsg(2261).linear_units_factor[1] == pytest.approx(0.3048006096012192)
with pytest.raises(CRSError):
CRS.from_epsg(4326).linear_units_factor
@pytest.mark.parametrize("epsg_code, units_factor", [
(3857, ("metre", 1.0)),
(4326, ("degree", pytest.approx(0.017453292519943295))),
])
def test_units_factor(epsg_code, units_factor):
assert CRS.from_epsg(epsg_code).units_factor == units_factor
def test_crs_copy():
"""CRS can be copied"""
assert copy.copy(CRS.from_epsg(3857)).wkt.startswith('PROJCS["WGS 84 / Pseudo-Mercator",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84"')
def test_crs_hash():
"""hashes of equivalent CRS are equal"""
assert hash(CRS.from_epsg(3857)) == hash(CRS.from_epsg(3857))
def test_crs_hash_unequal():
"""hashes of non-equivalent CRS are not equal"""
assert hash(CRS.from_epsg(3857)) != hash(CRS.from_epsg(4326))
def test_crs84():
"""Create CRS from OGC code"""
assert "WGS 84" in CRS.from_user_input("urn:ogc:def:crs:OGC::CRS84").wkt
@pytest.mark.parametrize("other", ["", 4.2, 0])
def test_equals_different_type(other):
"""Comparison to non-CRS objects is False"""
assert CRS.from_epsg(4326) != other
def test_from_user_input_custom_crs_class():
"""Support comparison to foreign objects that provide to_wkt()"""
assert CRS.from_user_input(CustomCRS()) == CRS.from_epsg(4326)
@pytest.mark.parametrize(
"crs_obj",
[
CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/4326"),
CRS.from_epsg(4326),
],
)
def test_epsg_treats_as_latlong(crs_obj):
"""EPSG treats this CRS as lat, lon (see also PR #1943)."""
assert epsg_treats_as_latlong(crs_obj)
@pytest.mark.parametrize(
"crs_obj",
[
CRS.from_user_input("http://www.opengis.net/def/crs/OGC/1.3/CRS84"),
CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/2193"),
CRS.from_epsg(3857),
CRS.from_epsg(32618),
]
)
def test_epsg_treats_as_latlong_not(crs_obj):
"""EPSG does not treat this CRS as lat, lon (see also PR #1943)."""
assert not epsg_treats_as_latlong(crs_obj)
@pytest.mark.parametrize(
"crs_obj",
[
CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/2193"),
CRS.from_epsg(2193),
],
)
def test_epsg_treats_as_northingeasting(crs_obj):
"""EPSG treats this CRS as northing, easting"""
assert epsg_treats_as_northingeasting(crs_obj)
@pytest.mark.parametrize(
"crs_obj",
[
CRS.from_epsg(32618),
CRS.from_epsg(3857),
CRS.from_user_input("http://www.opengis.net/def/crs/OGC/1.3/CRS84"),
CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/4326"),
],
)
def test_epsg_treats_as_northingeasting_not(crs_obj):
"""EPSG does not treat this CRS as northing, easting"""
assert not epsg_treats_as_northingeasting(crs_obj)
def test_from_string__wkt_with_proj():
wkt = (
'PROJCS["WGS 84 / Pseudo-Mercator",'
'GEOGCS["WGS 84",'
' DATUM["WGS_1984",'
' SPHEROID["WGS 84",6378137,298.257223563,'
' AUTHORITY["EPSG","7030"]],'
' AUTHORITY["EPSG","6326"]],'
' PRIMEM["Greenwich",0,'
' AUTHORITY["EPSG","8901"]],'
' UNIT["degree",0.0174532925199433,'
' AUTHORITY["EPSG","9122"]],'
' AUTHORITY["EPSG","4326"]],'
'PROJECTION["Mercator_1SP"],'
'PARAMETER["central_meridian",0],'
'PARAMETER["scale_factor",1],'
'PARAMETER["false_easting",0],'
'PARAMETER["false_northing",0],'
'UNIT["metre",1,'
' AUTHORITY["EPSG","9001"]],'
'AXIS["Easting",EAST],'
'AXIS["Northing",NORTH],'
'EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0 '
'+lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs"],'
'AUTHORITY["EPSG","3857"]] '
)
assert CRS.from_string(wkt).to_epsg() == 3857
def test_esri_auth__from_string():
assert CRS.from_string('ESRI:54009').to_string() == 'ESRI:54009'
def test_esri_auth__to_epsg():
assert CRS.from_user_input('ESRI:54009').to_epsg() is None
def test_esri_auth__to_authority():
assert CRS.from_user_input('ESRI:54009').to_authority() == ('ESRI', '54009')
def test_from_authority__to_authority():
assert CRS.from_authority("EPSG", 4326).to_authority() == ("EPSG", "4326")
def test_to_authority__no_code_available():
lcc_crs = CRS.from_string('+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc '
'+x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0')
assert lcc_crs.to_authority() is None
@pytest.mark.parametrize(
'crs_obj,result',
[
(CRS.from_user_input("http://www.opengis.net/def/crs/OGC/1.3/CRS84"), False),
(CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/2193"), False),
(CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/4326"), True),
]
)
def test_is_latlong(crs_obj, result):
"""Test if CRS should be treated as latlon."""
assert epsg_treats_as_latlong(crs_obj) == result
@pytest.mark.parametrize(
'crs_obj,result',
[
(CRS.from_user_input("http://www.opengis.net/def/crs/OGC/1.3/CRS84"), False),
(CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/2193"), True),
(CRS.from_user_input("http://www.opengis.net/def/crs/EPSG/0/4326"), False),
]
)
def test_is_northingeasting(crs_obj, result):
"""Test if CRS should be treated as having northing/easting coordinate ordering."""
assert epsg_treats_as_northingeasting(crs_obj) == result
def test_latlong_northingeasting_gdal3():
"""Check CRS created from epsg with GDAL 3."""
assert epsg_treats_as_latlong(CRS.from_epsg(4326))
assert epsg_treats_as_northingeasting(CRS.from_epsg(2193))
def test_tmerc_no_match():
"""Should not match an authority, see issue #2293."""
s = "+proj=tmerc +lat_0=0 +lon_0=10.7584 +k=0.9996 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs"
crs = CRS.from_string(s)
assert crs.to_epsg() is None
def test_crs_to_json_dict():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
json_dict = aeqd_crs.to_dict(projjson=True)
assert json_dict["type"] == "ProjectedCRS"
def test_crs_to_json_dict__empty():
crs = CRS()
assert crs.to_dict(projjson=True) == {}
def test_crs_from_json_dict():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
assert CRS.from_dict(aeqd_crs.to_dict(projjson=True)) == aeqd_crs
def test_crs_from_json_dict__user_input():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
assert CRS.from_user_input(aeqd_crs.to_dict(projjson=True)) == aeqd_crs
def test_crs_from_json_dict__init():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
assert CRS(aeqd_crs.to_dict(projjson=True)) == aeqd_crs
def test_crs_proj_json__user_input():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
assert CRS.from_user_input(json.dumps(aeqd_crs.to_dict(projjson=True))) == aeqd_crs
def test_crs_proj_json__from_string():
aeqd_crs = CRS(proj="aeqd", lon_0=-80, lat_0=40.5)
assert CRS.from_string(json.dumps(aeqd_crs.to_dict(projjson=True))) == aeqd_crs
def test_crs_compound_epsg():
assert CRS.from_string("EPSG:4326+3855").to_wkt().startswith("COMPD")
@pytest.mark.parametrize(
'crs_obj,geod_crs',
[
(CRS.from_epsg(4087), CRS.from_epsg(4326)),
(CRS.from_epsg(3995), CRS.from_epsg(4326)),
(CRS.from_epsg(3031), CRS.from_epsg(4326)),
(CRS.from_user_input("ESRI:102004"), CRS.from_user_input("EPSG:4269")),
(CRS.from_user_input("IAU_2015:49910"), CRS.from_user_input("IAU_2015:49900")),
(CRS.from_user_input("IAU_2015:49911"), CRS.from_user_input("IAU_2015:49901"))
]
)
def test_construct_geodetic_crs(crs_obj, geod_crs):
"""Test if CRS geodetic CRS matches expectations."""
assert crs_obj.geodetic_crs == geod_crs
@pytest.mark.parametrize("crs", [CRS.from_epsg(4326), CRS.from_string("EPSG:4326")])
def test_epsg_4326_ogc_crs84(crs):
"""EPSG:4326 not equivalent to OGC:CRS84."""
assert CRS.from_string("OGC:CRS84") != crs