Struct vrp_core::models::problem::ProblemObjective

pub struct ProblemObjective { /* private fields */ }

A hierarchical multi objective for vehicle routing problem.

Implementations

impl ProblemObjective

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

Creates an instance of InsertionObjective.

Trait Implementations

impl Default for ProblemObjective

fn default() -> Self

Returns the “default value” for a type.

impl MultiObjective for ProblemObjective

fn objectives<'a>(
    &'a self
) -> Box<dyn Iterator<Item = &'a (dyn Objective<Solution = Self::Solution> + Send + Sync)> + 'a>

Returns collection of objective functions.

impl Objective for ProblemObjective

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.

impl Shuffled for ProblemObjective

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

Returns a new instance of ObjectiveCost with shuffled objectives.

impl HeuristicObjective for ProblemObjective