def constant(cls, name=None, units=None, variables=None):
if any(var is None for var in (name, variables, units)):
raise ValueError("name, variables, or units may not be None")
if not isinstance(variables, collections.Iterable):
raise TypeError('{0} variables must be an iterable'.format(name))
t = Time.constant_time()
return cls(name=name,
units=units,
time=t,
variables=[v for v in variables])
def constant(
cls,
name=None,
units=None,
data=None,
):
if any(var is None for var in (name, data, units)):
raise ValueError("name, data, or units may not be None")
if not isinstance(data, Number):
raise TypeError('{0} data must be a number'.format(name))
t = Time.constant_time()
return cls(name=name, units=units, time=t, data=[data])
def __init__(self, angle=None, **kwargs):
"""
:param angle: scalar field of cell rotation angles (for rotated/distorted grids)
"""
if 'variables' in kwargs:
variables = kwargs['variables']
if len(variables) == 2:
variables.append(TimeSeriesProp(name='constant w', data=[0.0], time=Time.constant_time(), units='m/s'))
kwargs['variables'] = variables
if angle is None:
df = None
if kwargs.get('dataset', None) is not None:
df = kwargs['dataset']
elif kwargs.get('grid_file', None) is not None:
df = _get_dataset(kwargs['grid_file'])
if df is not None and 'angle' in df.variables.keys():
# Unrotated ROMS Grid!
self.angle = GriddedProp(name='angle', units='radians', time=None, grid=kwargs['grid'], data=df['angle'])
else:
self.angle = None
else:
self.angle = angle
super(VelocityGrid, self).__init__(**kwargs)