| root | The Transform to use when converting from world to local space. |
| child | The parent Transform object whose RectTransform children will be encapsulated. |
| trans | The Transfdorm to both search for RectTransform children and convert into world to local space. |
Bounds A Bounds object representing the encapsulated bounds in local space relative to the root Transform.
Creates a Bounds object that encapsulates all the child RectTransform objects found in the child parameter, and converts the resulting bounds into local space relative to the root transform.