In order to make angular and other frameworks play nice is to wrap the “other” frameworks using directives.
http://docs.angularjs.org/guide/directive
The thing that you want to do is to tell angular when data has been updated by the “other” frameworks. If angular doesn’t need to know, then your task is simpler.
Here is an example that works with SVG, its awesome
http://sullerandras.github.com/SVG-Sequence-Diagram/
Here is an example that wraps TinyMCE