/// <summary>
/// Draws the specified circle.
/// </summary>
/// <param name="canvas">The canvas.</param>
/// <param name="circle">The circle.</param>
/// <param name="filled">if set to <c>true</c> [filled].</param>
/// <param name="pixel">The pixel.</param>
/// <returns>The canvas.</returns>
public static ICanvas Draw(this ICanvas canvas, ICircle circle, bool filled, Pixel pixel)
{
circle.Iterate(
(x, y) =>
{
canvas.Draw(x, y, pixel);
},
filled ? 1 : circle.Radius
);
return(canvas);
}