def test_parse():
assert crs_util.parse_name(TEST_WKT) == "WGS 84"
assert crs_util.parse_authority(TEST_WKT) == ("EPSG", "4326")
assert crs_util.parse_name(AXIS_LAST_WKT) == "WGS 84"
assert crs_util.parse_authority(AXIS_LAST_WKT) == ("EPSG", "4326")
# Strangely this doesn't entirely work using osgeo:
spatial_ref = SpatialReference(TEST_WKT)
assert spatial_ref.GetName() == "WGS 84"
assert spatial_ref.GetAuthorityName(None) is None
assert spatial_ref.GetAuthorityCode(None) is None
def generate_gpkg_spatial_ref_sys(cls, v2_obj):
"""Generate a gpkg_spatial_ref_sys meta item from a v2 dataset."""
geom_columns = v2_obj.schema.geometry_columns
if not geom_columns:
return []
crs_pathname = geom_columns[0].extra_type_info.get("geometryCRS")
if not crs_pathname:
return []
wkt = v2_obj.get_crs_definition(crs_pathname)
auth_name, auth_code = crs_util.parse_authority(wkt)
if auth_code and auth_code.isdigit() and int(auth_code) > 0:
srs_id = int(auth_code)
else:
srs_id = crs_util.get_identifier_int(wkt)
return [{
"srs_name": crs_util.parse_name(wkt),
"definition": wkt,
"organization": auth_name or "NONE",
"srs_id": srs_id,
"organization_coordsys_id": srs_id,
"description": None,
}]
def generate_mysql_spatial_ref_sys(cls, v2_obj):
"""
Generates the contents of the spatial_referece_system table from the v2 object.
The result is a list containing a dict per table row.
Each dict has the format {column-name: value}.
"""
result = []
for crs_name, definition in v2_obj.crs_definitions().items():
auth_name, auth_code = crs_util.parse_authority(definition)
crs_id = crs_util.get_identifier_int(definition)
result.append({
"srs_id":
crs_id,
"name":
crs_util.parse_name(definition),
"definition":
crs_util.mysql_compliant_wkt(definition),
"organization":
auth_name,
"org_id":
crs_id,
})
return result
def _is_builtin_crs(self, crs):
auth_name, auth_code = crs_util.parse_authority(crs)
return auth_name == "EPSG"
def _is_builtin_crs(self, crs):
auth_name, auth_code = crs_util.parse_authority(crs)
return auth_name in ("EPSG", "ESRI") or auth_code == "900913" # GOOGLE