Export a Quick Model from Xcode?

I was looking for a quick way to generate UML like documentation for my project when I stumbled across the Quick Model menu item in Xcode. I was w开发者_如何学JAVAondering if there were a way to export these diagrams in a non-platform-specific file format like png or pdf? Basically I want to take some quick visual diagrams (illustrating component relationships) of some of the major classes in our project to management. Does anyone know of an idea?

File > Print, and choose Save to PDF from the gear menu in the Print dialog. Works in nearly every Mac OS X app.

@testing GraphicConverter allows you to open PDF's or files saved to iPhoto and then converted to PNG and crop them with precision to then rejoin in a bigger file. It's quite tedious but works. OmniGraffle should have a CoreData importer but it's not in the Standard version.