def _set_constraint_on_var(index: int, constraint: TimeWindowConstraint,
time_dimension: RoutingDimension):
if constraint.is_hard:
time_dimension.CumulVar(index).SetRange(constraint.from_time,
constraint.to_time)
else:
if constraint.from_time > 0:
time_dimension.SetCumulVarSoftLowerBound(
index, constraint.from_time, constraint.weight)
if constraint.to_time < MAX_TIMESTAMP_VALUE:
time_dimension.SetCumulVarSoftUpperBound(
index, constraint.to_time, constraint.weight)
def node_properties(
routing: pywrapcp.RoutingModel,
assignment: pywrapcp.Assignment,
capacity_dimension: pywrapcp.RoutingDimension,
time_dimension: pywrapcp.RoutingDimension,
index: int,
) -> tuple:
"""
Get a node's properties on the index.
"""
node_index = routing.IndexToNode(index)
load = assignment.Value(capacity_dimension.CumulVar(index))
time_var = time_dimension.CumulVar(index)
time_min, time_max = assignment.Min(time_var), assignment.Max(time_var)
return (node_index, load, time_min, time_max)
def node_properties(
manager: RoutingIndexManager,
assignment: Assignment,
capacity_dimension: RoutingDimension,
time_dimension: RoutingDimension,
index: int,
) -> tuple:
"""
Get a node's properties corresponding to the index.
"""
node_index = manager.IndexToNode(index)
load = assignment.Value(capacity_dimension.CumulVar(index))
time_var = time_dimension.CumulVar(index)
time_min, time_max = assignment.Min(time_var), assignment.Max(time_var)
return (node_index, load, time_min, time_max)
def node_properties( data: dict, manager: RoutingIndexManager, assignment: Assignment, capacity_dimension: RoutingDimension, time_dimension: RoutingDimension, index: int, ) -> tuple: """ Get a node's properties corresponding to the index. """ node_index = manager.IndexToNode(index) demand = data['demands'][node_index] load = assignment.Value(capacity_dimension.CumulVar(index)) if 'time_windows' in data.keys(): time_var = time_dimension.CumulVar(index) time = assignment.Value(time_dimension.CumulVar(index)) time_min, time_max = assignment.Min(time_var), assignment.Max(time_var) return (node_index, demand, time_min, time_max, load, time) return (node_index, demand, load)