Rust で線分を描く(Rust製ラスタライザ)

Rustで線分を描く

最終実装

このページで実装したdraw_line関数を用いる。

code:rs

while window.is_open() && !window.is_key_down(Key::Escape) {

for i in 0..50 {

let theta = -PI/2.0 + (i as f64) * 2.0*PI / 50.0;

let r = (HEIGHT as f64) / 2.0;

let p1 = Point2::new((WIDTH as i32) / 2, (HEIGHT as i32) / 2);

let p2 = Point2::new(

(p1.x as f64 + r * f64::cos(theta)).floor() as i32,

(p1.y as f64 + r * f64::sin(theta)).floor() as i32

);

draw_line(&mut buffer, &p1, &p2, &Color::new(1., 1., 1.));

}

window.update_with_buffer(&buffer, WIDTH, HEIGHT)?;

}

https://scrapbox.io/files/66bb7596202bb3001d4cd0ce.png