extern crate pdfpdf;
use pdfpdf::Pdf;
use pdfpdf::graphicsstate::Color;
use std::f32::consts::PI;
fn main() {
let (x, y) = (200.0, 200.0);
let r = 190.0;
let sides = 200;
let angles = (0..sides).map(|n| 2. * PI * n as f32 / sides as f32);
Pdf::new()
.add_page(400.0, 400.0)
.set_stroke_color(Color::rgb(0, 0, 0))
.set_line_width(2.0)
.draw_circle(x, y, r)
.set_stroke_color(Color::rgb(255, 230, 150))
.set_line_width(1.0)
.draw_line(angles.map(|phi| (x + r * phi.cos(), y + r * phi.sin())))
.write_to("circles.pdf")
.unwrap();
}