Struct Shipment 

#[non_exhaustive]
pub struct Shipment {

    pub pickups: Vec<VisitRequest>,
    pub deliveries: Vec<VisitRequest>,
    pub load_demands: HashMap<String, Load>,
    pub penalty_cost: Option<f64>,
    pub allowed_vehicle_indices: Vec<i32>,
    pub costs_per_vehicle: Vec<f64>,
    pub costs_per_vehicle_indices: Vec<i32>,
    pub pickup_to_delivery_relative_detour_limit: Option<f64>,
    pub pickup_to_delivery_absolute_detour_limit: Option<Duration>,
    pub pickup_to_delivery_time_limit: Option<Duration>,
    pub shipment_type: String,
    pub label: String,
    pub ignore: bool,
    pub demands: Vec<CapacityQuantity>,
    /* private fields */
}

The shipment of a single item, from one of its pickups to one of its deliveries. For the shipment to be considered as performed, a unique vehicle must visit one of its pickup locations (and decrease its spare capacities accordingly), then visit one of its delivery locations later on (and therefore re-increase its spare capacities accordingly).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

pickups: Vec<VisitRequest>

Set of pickup alternatives associated to the shipment. If not specified, the vehicle only needs to visit a location corresponding to the deliveries.

deliveries: Vec<VisitRequest>

Set of delivery alternatives associated to the shipment. If not specified, the vehicle only needs to visit a location corresponding to the pickups.

load_demands: HashMap<String, Load>

Load demands of the shipment (for example weight, volume, number of pallets etc). The keys in the map should be identifiers describing the type of the corresponding load, ideally also including the units. For example: “weight_kg”, “volume_gallons”, “pallet_count”, etc. If a given key does not appear in the map, the corresponding load is considered as null.

penalty_cost: Option<f64>

If the shipment is not completed, this penalty is added to the overall cost of the routes. A shipment is considered completed if one of its pickup and delivery alternatives is visited. The cost may be expressed in the same unit used for all other cost-related fields in the model and must be positive.

IMPORTANT: If this penalty is not specified, it is considered infinite, i.e. the shipment must be completed.

allowed_vehicle_indices: Vec<i32>

The set of vehicles that may perform this shipment. If empty, all vehicles may perform it. Vehicles are given by their index in the ShipmentModel’s vehicles list.

costs_per_vehicle: Vec<f64>

Specifies the cost that is incurred when this shipment is delivered by each vehicle. If specified, it must have EITHER:

• the same number of elements as costs_per_vehicle_indices. costs_per_vehicle[i] corresponds to vehicle costs_per_vehicle_indices[i] of the model.
• the same number of elements as there are vehicles in the model. The i-th element corresponds to vehicle #i of the model.

These costs must be in the same unit as penalty_cost and must not be negative. Leave this field empty, if there are no such costs.

costs_per_vehicle_indices: Vec<i32>

Indices of the vehicles to which costs_per_vehicle applies. If non-empty, it must have the same number of elements as costs_per_vehicle. A vehicle index may not be specified more than once. If a vehicle is excluded from costs_per_vehicle_indices, its cost is zero.

pickup_to_delivery_relative_detour_limit: Option<f64>

Specifies the maximum relative detour time compared to the shortest path from pickup to delivery. If specified, it must be nonnegative, and the shipment must contain at least a pickup and a delivery.

For example, let t be the shortest time taken to go from the selected pickup alternative directly to the selected delivery alternative. Then setting pickup_to_delivery_relative_detour_limit enforces:

start_time(delivery) - start_time(pickup) <=
std::ceil(t * (1.0 + pickup_to_delivery_relative_detour_limit))

If both relative and absolute limits are specified on the same shipment, the more constraining limit is used for each possible pickup/delivery pair. As of 2017/10, detours are only supported when travel durations do not depend on vehicles.

pickup_to_delivery_absolute_detour_limit: Option<Duration>

Specifies the maximum absolute detour time compared to the shortest path from pickup to delivery. If specified, it must be nonnegative, and the shipment must contain at least a pickup and a delivery.

For example, let t be the shortest time taken to go from the selected pickup alternative directly to the selected delivery alternative. Then setting pickup_to_delivery_absolute_detour_limit enforces:

start_time(delivery) - start_time(pickup) <=
t + pickup_to_delivery_absolute_detour_limit

If both relative and absolute limits are specified on the same shipment, the more constraining limit is used for each possible pickup/delivery pair. As of 2017/10, detours are only supported when travel durations do not depend on vehicles.

pickup_to_delivery_time_limit: Option<Duration>

Specifies the maximum duration from start of pickup to start of delivery of a shipment. If specified, it must be nonnegative, and the shipment must contain at least a pickup and a delivery. This does not depend on which alternatives are selected for pickup and delivery, nor on vehicle speed. This can be specified alongside maximum detour constraints: the solution will respect both specifications.

shipment_type: String

Non-empty string specifying a “type” for this shipment. This feature can be used to define incompatibilities or requirements between shipment_types (see shipment_type_incompatibilities and shipment_type_requirements in ShipmentModel).

Differs from visit_types which is specified for a single visit: All pickup/deliveries belonging to the same shipment share the same shipment_type.

label: String

Specifies a label for this shipment. This label is reported in the response in the shipment_label of the corresponding ShipmentRoute.Visit.

ignore: bool

If true, skip this shipment, but don’t apply a penalty_cost.

Ignoring a shipment results in a validation error when there are any shipment_type_requirements in the model.

Ignoring a shipment that is performed in injected_first_solution_routes or injected_solution_constraint is permitted; the solver removes the related pickup/delivery visits from the performing route. precedence_rules that reference ignored shipments will also be ignored.

demands: Vec<CapacityQuantity>

👎Deprecated

Deprecated: Use Shipment.load_demands instead.

Implementations

impl Shipment

pub fn new() -> Self

pub fn set_pickups<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<VisitRequest>,

Sets the value of pickups.

pub fn set_deliveries<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<VisitRequest>,

Sets the value of deliveries.

pub fn set_load_demands<T, K, V>(self, v: T) -> Self

where T: IntoIterator<Item = (K, V)>, K: Into<String>, V: Into<Load>,

Sets the value of load_demands.

pub fn set_penalty_cost<T>(self, v: T) -> Self

where T: Into<f64>,

Sets the value of penalty_cost.

pub fn set_or_clear_penalty_cost<T>(self, v: Option<T>) -> Self

where T: Into<f64>,

Sets or clears the value of penalty_cost.

pub fn set_allowed_vehicle_indices<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<i32>,

Sets the value of allowed_vehicle_indices.

pub fn set_costs_per_vehicle<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<f64>,

Sets the value of costs_per_vehicle.

pub fn set_costs_per_vehicle_indices<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<i32>,

Sets the value of costs_per_vehicle_indices.

pub fn set_pickup_to_delivery_relative_detour_limit<T>(self, v: T) -> Self

where T: Into<f64>,

Sets the value of pickup_to_delivery_relative_detour_limit.

pub fn set_or_clear_pickup_to_delivery_relative_detour_limit<T>( self, v: Option<T>, ) -> Self

where T: Into<f64>,

Sets or clears the value of pickup_to_delivery_relative_detour_limit.

pub fn set_pickup_to_delivery_absolute_detour_limit<T>(self, v: T) -> Self

where T: Into<Duration>,

Sets the value of pickup_to_delivery_absolute_detour_limit.

pub fn set_or_clear_pickup_to_delivery_absolute_detour_limit<T>( self, v: Option<T>, ) -> Self

where T: Into<Duration>,

Sets or clears the value of pickup_to_delivery_absolute_detour_limit.

pub fn set_pickup_to_delivery_time_limit<T>(self, v: T) -> Self

where T: Into<Duration>,

Sets the value of pickup_to_delivery_time_limit.

pub fn set_or_clear_pickup_to_delivery_time_limit<T>(self, v: Option<T>) -> Self

where T: Into<Duration>,

Sets or clears the value of pickup_to_delivery_time_limit.

pub fn set_shipment_type<T: Into<String>>(self, v: T) -> Self

Sets the value of shipment_type.

pub fn set_label<T: Into<String>>(self, v: T) -> Self

Sets the value of label.

pub fn set_ignore<T: Into<bool>>(self, v: T) -> Self

Sets the value of ignore.

pub fn set_demands<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<CapacityQuantity>,

👎Deprecated

Sets the value of demands.

Trait Implementations

impl Clone for Shipment

fn clone(&self) -> Shipment

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Shipment

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Shipment

fn default() -> Shipment

Returns the “default value” for a type.

impl Message for Shipment

fn typename() -> &'static str

The typename of this message.

impl PartialEq for Shipment

fn eq(&self, other: &Shipment) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Shipment