/// <summary>
/// Draws a circle only on screen.
/// </summary>
/// <param name="graphics">The graphics object.</param>
/// <param name="color">The color.</param>
/// <param name="center">The center point.</param>
/// <param name="radius">The radius.</param>
public static void CCircle(this IGraphics graphics, Color color, Vector center, double radius)
{
graphics.CCircleSegment(color, center, radius, 0, 2 * Math.PI);
}
