def get_unwrapped(self, root, refobjinter):
        """Return a set with all refobjects in the scene that are not in already
        wrapped in root.

        :param root: the root that groups all reftracks and makes it possible to search for parents
        :type root: :class:`ReftrackRoot`
        :param refobjinter: a programm specific reftrack object interface
        :type refobjinter: :class:`RefobjInterface`
        :returns: a set with unwrapped refobjects
        :rtype: set
        :raises: None
        """
        all_refobjs = set(refobjinter.get_all_refobjs())
        wrapped = set(root._parentsearchdict.keys())
        return all_refobjs - wrapped
Return a set with all refobjects in the scene that are not in already
        wrapped in root.

        :param root: the root that groups all reftracks and makes it possible to search for parents
        :type root: :class:`ReftrackRoot`
        :param refobjinter: a programm specific reftrack object interface
        :type refobjinter: :class:`RefobjInterface`
        :returns: a set with unwrapped refobjects
        :rtype: set
        :raises: None