def get_applicable_variables(self, ds):
'''
Returns a list of variable names that are applicable to ACDD Metadata
Checks for variables. This includes geophysical and coordinate
variables only.
:param netCDF4.Dataset ds: An open netCDF dataset
'''
if self._applicable_variables is None:
self.applicable_variables = cfutil.get_geophysical_variables(ds)
varname = cfutil.get_time_variable(ds)
# avoid duplicates by checking if already present
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_lon_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_lat_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_z_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
return self.applicable_variables
def get_applicable_variables(self, ds):
"""
Returns a list of variable names that are applicable to ACDD Metadata
Checks for variables. This includes geophysical and coordinate
variables only.
:param netCDF4.Dataset ds: An open netCDF dataset
"""
if self._applicable_variables is None:
self.applicable_variables = cfutil.get_geophysical_variables(ds)
varname = cfutil.get_time_variable(ds)
# avoid duplicates by checking if already present
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_lon_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_lat_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
varname = cfutil.get_z_variable(ds)
if varname and (varname not in self.applicable_variables):
self.applicable_variables.append(varname)
return self.applicable_variables
def test_grid_mapping(self):
'''
Ensures that grid mapping variables are properly identified
'''
with Dataset(resources.STATIC_FILES['rotated_pole_grid']) as nc:
grid_mapping = util.get_grid_mapping_variables(nc)
coordinate_variables = util.get_coordinate_variables(nc)
axis_variables = util.get_axis_variables(nc)
assert 'rotated_pole' in grid_mapping
assert set(['rlon', 'rlat', 'lev']) == set(coordinate_variables)
assert set(['rlon', 'rlat', 'lev']) == set(axis_variables)
assert 'lat' == util.get_lat_variable(nc)
assert 'lon' == util.get_lon_variable(nc)
def test_grid_mapping(self):
"""
Ensures that grid mapping variables are properly identified
"""
with Dataset(resources.STATIC_FILES["rotated_pole_grid"]) as nc:
grid_mapping = util.get_grid_mapping_variables(nc)
coordinate_variables = util.get_coordinate_variables(nc)
axis_variables = util.get_axis_variables(nc)
assert "rotated_pole" in grid_mapping
assert set(["rlon", "rlat", "lev"]) == set(coordinate_variables)
assert set(["rlon", "rlat", "lev"]) == set(axis_variables)
assert "lat" == util.get_lat_variable(nc)
assert "lon" == util.get_lon_variable(nc)
def test_grid_mapping(self):
'''
Ensures that grid mapping variables are properly identified
'''
with Dataset(resources.STATIC_FILES['rotated_pole_grid']) as nc:
grid_mapping = util.get_grid_mapping_variables(nc)
coordinate_variables = util.get_coordinate_variables(nc)
axis_variables = util.get_axis_variables(nc)
assert 'rotated_pole' in grid_mapping
assert set(['rlon', 'rlat', 'lev']) == set(coordinate_variables)
assert set(['rlon', 'rlat', 'lev']) == set(axis_variables)
assert 'lat' == util.get_lat_variable(nc)
assert 'lon' == util.get_lon_variable(nc)
def get_applicable_variables(self, ds):
'''
Returns a list of variable names that are applicable to ACDD Metadata
Checks for variables. This includes geophysical and coordinate
variables only.
:param netCDF4.Dataset ds: An open netCDF dataset
'''
if self._applicable_variables is None:
self.applicable_variables = cfutil.get_geophysical_variables(ds)
varname = cfutil.get_time_variable(ds)
if varname:
self.applicable_variables.append(varname)
varname = cfutil.get_lon_variable(ds)
if varname:
self.applicable_variables.append(varname)
varname = cfutil.get_lat_variable(ds)
if varname:
self.applicable_variables.append(varname)
varname = cfutil.get_z_variable(ds)
if varname:
self.applicable_variables.append(varname)
return self.applicable_variables