dyna3/app-proto/examples/three-spheres.rs

mod common;

use common::{
    print_gram_matrix,
    print_loss_history,
    print_realization_diagnostics,
    print_title
};
use dyna3::engine::{realize_gram, sphere, ConstraintProblem, Realization};

fn main() {
    let mut problem = ConstraintProblem::from_guess({
        let a: f64 = 0.75_f64.sqrt();
        &[
            sphere(1.0, 0.0, 0.0, 1.0),
            sphere(-0.5, a, 0.0, 1.0),
            sphere(-0.5, -a, 0.0, 1.0)
        ]
    });
    for j in 0..3 {
        for k in j..3 {
            problem.gram.push_sym(j, k, if j == k { 1.0 } else { -1.0 });
        }
    }
    let realization_result = realize_gram(
        &problem, 1.0e-12, 0.5, 0.9, 1.1, 200, 110
    );
    print_title("Three spheres");
    print_realization_diagnostics(&realization_result);
    if let Ok(Realization{ config, .. }) = realization_result.result {
        print_gram_matrix(&config);
    }
    print_loss_history(&realization_result.history);
}