Class CmdlineOptions

tools/attractor.rs:16–96

#[derive(Debug, Parser)]
#[clap(name = "attractor", verbatim_doc_comment)]
struct CmdlineOptions {
    /// The log level
    #[clap(short, long, default_value_t = tracing::Level::INFO)]
    log_level: tracing::Level,

    #[clap(short = 'O', long, default_value_t = OutputFormat::Points)]
    output_format: OutputFormat,

    #[clap(short, long, required_if_eq("output_format", "image"))]
    output: Option<PathBuf>,

    /// The width of the output image
    ///
    /// If not given, an appropriate width will be chosen
    #[clap(short = 'W', long)]
    width: Option<u32>,

    /// The height of the output image
    ///
    /// If not given, an appropriate height will be chosen
    #[clap(short = 'H', long)]
    height: Option<u32>,

    /// Mathematical expressions defining the dynamical system
    ///
    /// The --math argument may be provided multiple times. The initial values of x and y will be
    /// populated, and the expression is expected to define new variables x_new and y_new.
    #[clap(short, long)]
    math: Vec<String>,

    /// The path to a rune script defining the dynamical system
    ///
    /// Has the same rules as --math. May be combined with --math (all --math arguments are
    /// appended to the end of the script).
    #[clap(short, long)]
    script: Option<String>,

    /// Parameters to define when the dynamical system is evaluated
    ///
    /// May be given multiple times. Each parameter should be defined as '-p name=value'
    ///
    /// Anything defined with --math or --script may override these parameters.
    #[clap(short, long)]
    parameter: Vec<String>,

    /// Letters A..=Y used to generate the values of parameters a_1, a_2, ..., a_n
    ///
    /// Example: "ABCD" will generate parameters a_1=-1.2, a_2=-1.1, a_3=-1.0, a_4=-0.9
    ///
    /// Example: "WXY" will generate parameters a_1=1.0, a_2=1.1, a_3=1.2
    ///
    /// Anything defined with --math or --script may override these parameters.
    #[clap(long)]
    letters: Option<String>,

    /// The random seed to use. Use zero to let the tool pick its own random seed.
    #[clap(long, default_value_t = 0)]
    seed: u64,