braille_pics，一个用于将盲文字符制作成文本艺术的Rust crate

• 作者: Christopher Phan
• 许可证: MIT或Apache-2.0
• crate.io
• 文档 (docs.rs)

use mandelbrot::BraillePic;

fn main() {
    /* Make an image of the Mandelbrot set */

    let mandelbrot_bp = BraillePic::from_func(
        |(col, row)| {
            let c: (f64, f64) = (
                // Representing the complex number a + bi as (a, b)
                3.0 * (col as f64) / 120.0 - 2.0, // viewing window: [-2, 1] x [-1, 1]
                -2.0 * (row as f64) / 100.0 + 1.0, // 120 bits x 100 bits
            );
            let mut z: (f64, f64) = (0.0, 0.0);
            for _ in 0..500 {
                z = (z.0 * z.0 - z.1 * z.1 + c.0, 2.0 * z.0 * z.1 + c.1); // z = z**2 + c
                if z.0 * z.0 + z.1 * z.1 >= 16.0 {
                    // test bailout condition |z|**2 > 16
                    return false;
                }
            }
            true // assume bounded
        },
        120,
        100,
    );

    println!("{}", mandelbrot_bp);
}

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