arc_example.rs

extern crate piston_window;
extern crate graphics;
extern crate piston;

use piston_window::*;

fn main() {

    let opengl = OpenGL::V3_2;
    let (width, height) = (800, 800);
    let window: PistonWindow =
        WindowSettings::new("Arc Example", (width, height))
        .exit_on_esc(true)
        .opengl(opengl)
        .into();

    for e in window {
        match e.event {
            Some(Event::Render(_)) => {
                e.draw_2d(|c, g| {
                    clear([1.0, 1.0, 1.0, 1.0], g);
                    arc(
                        [0.3, 0.3, 0.6, 1.0],
                        4.0,
                        ::std::f64::consts::PI * 0.25,
                        ::std::f64::consts::PI * 1.25,
                        [370.0, 370.0, 60.0, 60.0],
                        c.transform,
                        g
                    );
                });
            },
            _ => {}
        }
    }
}