Set here the translation applied to the child object or list of objects.
When linking a plane to another object, the translation is always
applied to the child object: the plane itself when linking above,
the other object (direction, atom, orbital, text) when linking below.
The final child position is given by this translation vector added
to the child or parent origin, as defined by the
Reference option.
By default this is the child origin and the translation vector is
0.0,
0.0,
0.0, so no translation is applied.
When a list of planes is linked above,
Reference is set by default
to
Child, so planes preserve their positions and are not superposed.
When a list of planes is linked below, each plane will be linked to a new,
automatically created, child object, and
Reference is set by default
to
Parent, so childs remain near their parent planes and are not superposed.