Function build_dynamical_system_function

tools/attractor.rs:109–122

(args: &CmdlineOptions)

type DynamicalSystemFn = Box<dyn Fn(f64, f64) -> (f64, f64) + 'static>;

fn build_dynamical_system_function(args: &CmdlineOptions) -> eyre::Result<DynamicalSystemFn> {
    // Interpret the CLI arguments to build the dynamical system function
    if !args.math.is_empty() || args.script.is_some() {
        build_dynamical_system_function_from_args(args)
    } else {
        // If no --math arguments are provided, use a default function useful for prototyping
        Ok(Box::new(|x, y| {
            (
                f64::sin(0.97 * y) - f64::cos(-1.899 * x),
                f64::sin(1.381 * x) - f64::cos(-1.506 * y),
            )
        }))
    }
}

fn build_dynamical_system_function_from_args(
    args: &CmdlineOptions,