dyna3/app-proto/examples/point-on-sphere.rs

mod common;

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

fn main() {
    let mut problem = ConstraintProblem::from_guess(&[
        point(0.0, 0.0, 2.0),
        sphere(0.0, 0.0, 0.0, 1.0)
    ]);
    for j in 0..2 {
        for k in j..2 {
            problem.gram.push_sym(j, k, if (j, k) == (1, 1) { 1.0 } else { 0.0 });
        }
    }
    problem.frozen.push(3, 0, problem.guess[(3, 0)]);
    let realization_result = realize_gram(
        &problem, 1.0e-12, 0.5, 0.9, 1.1, 200, 110
    );
    print_title("Point on a sphere");
    print_realization_diagnostics(&realization_result);
    if let Ok(Realization{ config, .. }) = realization_result.result {
        print_gram_matrix(&config);
        print_config(&config);
    }
    print_loss_history(&realization_result.history);
}