def add_tank(self, name, elevation=0.0, init_level=3.048,
min_level=0.0, max_level=6.096, diameter=15.24,
min_vol=None, vol_curve=None, coordinates=None):
"""
Adds a tank to the water network model.
Parameters
-------------------
name : string
Name of the tank.
elevation : float
Elevation at the Tank.
init_level : float
Initial tank level.
min_level : float
Minimum tank level.
max_level : float
Maximum tank level.
diameter : float
Tank diameter.
min_vol : float
Minimum tank volume.
vol_curve : Curve object
Curve object
coordinates : tuple of floats
X-Y coordinates of the node location.
Raises
------
ValueError
If `init_level` greater than `max_level` or less than `min_level`
"""
elevation = float(elevation)
init_level = float(init_level)
min_level = float(min_level)
max_level = float(max_level)
diameter = float(diameter)
if min_vol is not None:
min_vol = float(min_vol)
if init_level < min_level:
raise ValueError("Initial tank level must be greater than or equal to the tank minimum level.")
if init_level > max_level:
raise ValueError("Initial tank level must be less than or equal to the tank maximum level.")
if vol_curve and isinstance(vol_curve, six.string_types):
vol_curve = self.get_curve(vol_curve)
tank = Tank(name, elevation, init_level, min_level, max_level, diameter, min_vol, vol_curve)
self._nodes[name] = tank
self._tanks[name] = tank
self._graph.add_node(name)
if coordinates is not None:
self.set_node_coordinates(name, coordinates)
nx.set_node_attributes(self._graph, name='type', values={name: 'tank'})
self._num_tanks += 1
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