In addition, the manager provides features that compute
and enforce group/child location relationships when one or the other
is moved:
em.setAutoComputeGroupLocation(true);
Moving a group
When the user interactively moves a group, the children
belonging to that group are all moved using the same offsets.
The following figure shows how the children are moved
when the group is moved.
Moving a group
Moving children
When the user interactively moves the children of a group
to a new position, the corresponding group is moved accordingly.
The following figure shows how the group is moved when
the children are moved.
Moving children