def world_obj(self):
        """
        The :meth:`local_obj <local_obj>` object in the
        :meth:`world_coords <Component.world_coords>` coordinate system.

        .. note::

            This is automatically generated when called, and
            :meth:`world_coords <Component.world_coords>` is not ``Null``.
        """
        if self._world_obj is None:
            local_obj = self.local_obj
            world_coords = self.world_coords
            if (local_obj is not None) and (world_coords is not None):
                # Copy local object, apply transform to move to its new home.
                self._world_obj = world_coords + local_obj
        return self._world_obj