Struct SaNestingProblem 

pub struct SaNestingProblem { /* private fields */ }

SA problem definition for 2D nesting.

Implementations

impl SaNestingProblem

pub fn new( geometries: Vec<Geometry2D>, boundary: Boundary2D, config: Config, cancelled: Arc<AtomicBool>, ) -> Self

Creates a new SA nesting problem.

pub fn num_instances(&self) -> usize

Returns the total number of instances.

pub fn decode( &self, solution: &PermutationSolution, ) -> (Vec<Placement<f64>>, f64, usize)

Decodes a solution into placements using NFP-guided placement.

Trait Implementations

impl SaProblem for SaNestingProblem

type Solution = PermutationSolution

The solution type for this problem.

fn initial_solution<R: Rng>(&self, rng: &mut R) -> Self::Solution

Creates an initial solution.

fn neighbor<R: Rng>( &self, solution: &Self::Solution, operator: NeighborhoodOperator, rng: &mut R, ) -> Self::Solution

Generates a neighbor solution using the specified operator.

fn evaluate(&self, solution: &mut Self::Solution)

Evaluates the objective of a solution.

fn available_operators(&self) -> Vec<NeighborhoodOperator>

Returns available neighborhood operators for this problem.

fn on_temperature_change( &self, temperature: f64, iteration: u64, best: &Self::Solution, _current: &Self::Solution, )

Called after each temperature level (for progress reporting).