lbf/
config.rs

1use jagua_rs::collision_detection::CDEConfig;
2use jagua_rs::geometry::fail_fast::SPSurrogateConfig;
3use jagua_rs::io::svg::SvgDrawOptions;
4use serde::{Deserialize, Serialize};
5
6/// Configuration for the LBF optimizer
7#[derive(Debug, Serialize, Deserialize, Clone, Copy)]
8#[serde(default)]
9pub struct LBFConfig {
10    /// Configuration of the Collision Detection Engine
11    pub cde_config: CDEConfig,
12    /// Max deviation from the original polygon area as a fraction. If undefined, the algorithm will run without simplification
13    pub poly_simpl_tolerance: Option<f32>,
14    /// Maximum distance between two vertices of a polygon to consider it a narrow concavity (which will be closed).
15    /// Defined as a fraction of the largest item in the instance.
16    pub narrow_concavity_cutoff_ratio: Option<f32>,
17    /// Minimum distance between items and other hazards.
18    /// If undefined, the algorithm will run without this constraint
19    pub min_item_separation: Option<f32>,
20    /// Seed for the PRNG. If undefined, the algorithm will run in non-deterministic mode using entropy
21    pub prng_seed: Option<u64>,
22    /// Total budget of samples per item per layout
23    pub n_samples: usize,
24    /// Fraction of `n_samples_per_item` used for the local search sampler, the rest is sampled uniformly.
25    pub ls_frac: f32,
26    /// Optional SVG drawing options
27    pub svg_draw_options: SvgDrawOptions,
28}
29
30impl Default for LBFConfig {
31    fn default() -> Self {
32        Self {
33            cde_config: CDEConfig {
34                quadtree_depth: 5,
35                cd_threshold: 16,
36                item_surrogate_config: SPSurrogateConfig {
37                    n_pole_limits: [(100, 0.0), (20, 0.75), (10, 0.90)],
38                    n_ff_poles: 2,
39                    n_ff_piers: 0,
40                },
41            },
42            poly_simpl_tolerance: Some(0.001),
43            narrow_concavity_cutoff_ratio: Some(0.01),
44            min_item_separation: None,
45            prng_seed: None,
46            n_samples: 5000,
47            ls_frac: 0.2,
48            svg_draw_options: SvgDrawOptions::default(),
49        }
50    }
51}
lbf/config.rs

lbf/
config.rs
