OpenGL ES and Default iPhone UI components

So I am rather experienced with OpenGL on the desktop platform and am trying to integrate it with my iOS development experience. I have created several large scale iOS applications so I have a good understanding of that process as well. I was wondering if anyone knows of any useful techniques to integrate iOS UI components with an OpenGL scene, or if that is even possible. I apologize if this is to general. I can refine it if necessary.

For example, say you have an iPad application that has a table and whatnot on the left, and you want to add a little 3D OpenGL window on the right. (Perhaps a chart or something that the user can interact with?) This would not be for a game or anything, but more for my understanding on how to smoothly integrate the different platforms. Any advice or links that the communi开发者_高级运维ty could provide would be greatly appreciated. Thanks in advance!

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GL-Views do not have to cover the entire screen. A great and very easy to understand example is the sound=recorder SpeakHere iphone app within the iOS SDK.

This example uses a small GL-View for displaying a peak-level-meter of the audio signal; GLLevelMeter.

Hope this helps...