Function new

examples/log_scale.rs:24–54

()

}

fn new() -> PlotWidget {
    let mut values = Vec::new();
    for i in -10..=200 {
        let x = i as f64 * 0.1;
        let y = x * x + 0.05;
        values.push([x, y]);
    }

    let series = Series::circles(values, 4.0)
        .with_label("y = x² + 0.05")
        .with_color(Color::from_rgb(0.2, 0.8, 1.0));

    // Build a log-log plot.
    //
    // Note that we also override the tick producers to place ticks on powers,
    // and the formatters to use scientific notation. This is optional. You could
    // use the built-in ones if you don't need evenly spaced ticks, or provide your
    // own.
    PlotWidgetBuilder::new()
        .with_x_label("x")
        .with_y_label("y")
        .with_x_scale(AxisScale::Log { base: E })
        .with_y_scale(AxisScale::Log { base: E })
        .with_x_tick_producer(|min, max, width_px| log_tick_producer(E, min, max, width_px))
        .with_y_tick_producer(|min, max, height_px| log_tick_producer(E, min, max, height_px))
        .with_x_tick_formatter(|t| log_formatter(t, E))
        .with_y_tick_formatter(|t| log_formatter(t, E))
        .add_series(series)
        .build()
        .unwrap()
}