/// <summary>
/// Returns a signed angle
/// </summary>
/// <param name="direction"></param>
/// <param name="next"></param>
/// <returns></returns>
public static Angle GetSignedAngleBetween(LineSegment2 direction, Vector2 next)
{
var angle = next.GetAngleTo(direction.ToVector());
return angle * (direction.IsLeft(next) ? 1 : -1);
}
/// <summary>
/// Split the Arc at the given Point
/// </summary>
/// <param name="splitPoint">Point to split</param>
/// <returns></returns>
public IEnumerable<Arc> Split(Vector2 splitPoint)
{
var vstart = new Vector2(this.MiddlePoint, this.Location);
var vsplit = new Vector2(this.MiddlePoint, splitPoint);
return Split(vstart.GetAngleTo(vsplit));
}
