Sierpinski square curve: Difference between revisions

Line 426:

let theta = (PI * self.current_angle as f64) / 180.0;

self.current_x += self.line_length * theta.cos();

self.current_y -= self.line_length * theta.sin();

self.current_y += self.line_length * theta.sin();

data.line_to((self.current_x, self.current_y))

}

Line 432:

self.current_angle = (self.current_angle + angle) % 360;

}

fn save(file : &str, size : usize, order : usize) -> std::io::Result<()> {

fn save(file : &str, size : usize, length : f64, order : usize) -> std::io::Result<()> {

use svg::node::element::Rectangle;

let x = ~~315~~.0;

let x = (size as f64 - length)/2.0;

let y = ~~630.0~~;

let y = length;

let rect = Rectangle::new()

.set("width", "100%")

.set("height", "100%")

.set("fill", "white");

let mut ~~hilbert~~ = SierpinskiSquareCurve::new(x, y, ~~5.0~~, 0);

let mut s = SierpinskiSquareCurve::new(x, y, length, 0);

let document = svg::Document::new()

.set("width", size)

.set("height", size)

.add(rect)

.add(~~hilbert~~.execute(order));

.add(s.execute(order));

svg::save(file, &document)

}

Line 451:

fn main() {

SierpinskiSquareCurve::save("sierpinski_square_curve.svg", 635, 5).unwrap();

SierpinskiSquareCurve::save("sierpinski_square_curve.svg", 635, 5.0, 5).unwrap();

}</lang>