Creates figure for this edit part.
Body of this method does not depend on settings in generation model
so you may safely remove generated tag and modify it.
Relocates the bordered items on the expression.
If the links to proxies are crossed over the relocate
moves the bordered items and resolves the crossings.
Default implementation treats passed figure as content pane.
Respects layout one may have set for generated figure.
Parameters: nodeShape - instance of generated figure class