/// <summary>
/// Returns all rectangles that intersect with the target rectangle.
/// </summary>
/// <param name="rectangle">The target rectangle.</param>
/// <param name="rectangles">The candidate rectangles.</param>
/// <returns>A collection of rectangles.</returns>
public static IEnumerable<Rectangle> ChildrenAndIntersectingSiblings(Rectangle rectangle, IEnumerable<Rectangle> rectangles)
{
return rectangles.Where(r => rectangle.HitTest(r) && !rectangle.Equals(r) && !r.Encompasses(rectangle));
}
