What's wrong with the editix one you included a picture of?
Not quite sure I know of any librarys but there exist a lot of applications, or you could make your own...
Thanks for the replies,
I want to models element like in the image I've posted on top, I need to create an XSD editor, so I need to graph XSD elements in a visual graph, I've used JFreeGraph before, but it doesn't be useful for this project now.
Also can be useful source code of Editix, but I haven't found it.
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