Returns a mapping model initialized from a given URL.
Original signature is '- (id)initWithContentsOfURL:(NSURL *)url'
Available in Mac OS X v10.5 and later.


- url (NSURL)
- The location of an archived mapping model.

A mapping model initialized from url.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)