rasterization 0.2.0

Iterator and iterator adapters for rasterizing a circle and its parts.
Documentation 
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use rasterization::{Rasterization, SemicircleFilled};
use image::{Rgb, RgbImage, ImageResult};

fn main() -> ImageResult<()> {
    let radius = 128_usize;
    let width = (radius * 3) as u32;
    let height = (radius * 2) as u32;
    let color = Rgb([195, 156, 216]);
    let center_x = (radius * 2) as i32;
    let center_y = radius as i32;
    let mut img = RgbImage::from_pixel(width, height, Rgb([255, 255, 255]));
   SemicircleFilled::<i32>::new(radius)
        .circle_long(-128, 0)
        .offset(center_x, center_y) 
        .for_each(|(x, y)| { img.put_pixel(x as u32, y as u32, color); });
    
    img.save("circle_long.png")?;
    Ok(())
}