def test_create_flags_variable_1D(self):
meanings = ["flag1", "flag2", "flag3", "flag4", "flag5", "flag6", "flag7", "flag8"]
meanings_txt = "flag1 flag2 flag3 flag4 flag5 flag6 flag7 flag8"
masks = "1, 2, 4, 8, 16, 32, 64, 128"
flags_vector_variable = DatasetUtil.create_flags_variable([5], meanings, dim_names=["dim1"],
attributes={"standard_name": "std"})
self.assertIsNotNone(flags_vector_variable)
self.assertEqual(Variable, type(flags_vector_variable))
self.assertEqual((5,), flags_vector_variable.shape)
self.assertEqual(np.uint8, flags_vector_variable.dtype)
self.assertEqual(flags_vector_variable.attrs['flag_masks'], masks)
self.assertEqual(flags_vector_variable.attrs['flag_meanings'], meanings_txt)
self.assertEqual(0, flags_vector_variable[2])
self.assertEqual("std", flags_vector_variable.attrs["standard_name"])
self.assertEqual(("dim1",), flags_vector_variable.dims)
def add_variables(ds, variables_dict, dim_sizes_dict):
"""
Adds defined variables dataset
:type ds: xarray.Dataset
:param ds: dataset
:type variables_dict: dict
:type variables_dict: dictionary defining variables
:type dim_sizes_dict: dict
:param dim_sizes_dict: entry per dataset dimension with value of size as int
:return: dataset with defined variables
:rtype: xarray.Dataset
"""
du = DatasetUtil()
for variable_name in variables_dict.keys():
variable_attrs = variables_dict[variable_name]
# Check variable definition
TemplateUtil._check_variable_definition(variable_name,
variable_attrs)
# Unpack variable attributes
dtype = variable_attrs["dtype"]
dim_names = variable_attrs["dim"]
attributes = variable_attrs[
"attributes"] if "attributes" in variable_attrs else None
# Determine variable shape from dims
try:
dim_sizes = TemplateUtil._return_variable_shape(
dim_names, dim_sizes_dict)
except KeyError:
raise KeyError("Dim Name Error - Variable " + variable_name +
" defined with dim not in dim_sizes_dict")
# Create variable and add to dataset
if dtype == "flag":
flag_meanings = attributes.pop("flag_meanings")
variable = du.create_flags_variable(dim_sizes,
meanings=flag_meanings,
dim_names=dim_names,
attributes=attributes)
else:
variable = du.create_variable(dim_sizes,
dim_names=dim_names,
dtype=dtype,
attributes=attributes)
if "encoding" in variable_attrs:
du.add_encoding(variable, **variable_attrs["encoding"])
ds[variable_name] = variable
return ds