Struct vrp_core::models::problem::ObjectiveCost

pub struct ObjectiveCost { /* fields omitted */ }

A hierarchical multi objective for vehicle routing problem.

Implementations

impl ObjectiveCost

pub fn new(objectives: Vec<Vec<TargetObjective>>) -> Self

Creates an instance of ObjectiveCost.

pub fn shuffled(&self, random: &(dyn Random + Send + Sync)) -> Self

Returns a new instance of ObjectiveCost with shuffled objectives.

Trait Implementations

impl Default for ObjectiveCost

fn default() -> Self

Returns the “default value” for a type.

impl MultiObjective for ObjectiveCost

fn objectives<'a>(&'a self) -> Box<dyn Iterator<Item = &TargetObjective> + 'a>

Returns collection of objective functions.

impl Objective for ObjectiveCost

type Solution = InsertionContext

The solution value type that we define the objective on.

fn total_order(&self, a: &Self::Solution, b: &Self::Solution) -> Ordering

An objective defines a total ordering between any two solution values.

fn distance(&self, _a: &Self::Solution, _b: &Self::Solution) -> f64

An objective defines a distance metric between any two solution values.

fn fitness(&self, solution: &Self::Solution) -> f64

An objective fitness value for given solution.