Rect A Rect describing the world-space bounding box. Width and height are always non-negative.
Returns the world-space axis-aligned bounding box of this RectTransform.
The returned Rect is the smallest axis-aligned rectangle that encloses all four world-space corners of this RectTransform. For a RectTransform with non-zero Z rotation, the bounding box is larger than the element's nominal size.
Additional resources: GetScreenRect, Contains.