The Rescale function is available from both the Action menu of the Group of Datums Members tab and from the edit tool palette.

A Rescale operation on a Group will cause the route offset measurements to be recalculated. The offset value is the measured distance value of the start of the Element, relative to the parent Group in increasing measure from the Route Start point. The offset calculation rules will be dependent on the precedence set by the sequence number of the Type Subclass's defined for the Datum Network Type.

When the Rescale button is pressed on the toolbar, the Rescale Group dialog will be displayed as shown above. The value entered in the 'Offset' field, will be the value used for the offset value for the first Element in the Group, e.g. if a value of 10 was entered, the offset of the first member Element would be 10. All other offsets will be based on this start offset.

When a Group is Rescaled, the Group membership Start Date will be reset to the date of the Rescale operation. Offset values for any subsequent elements will be unaffected by a rescale.

If the selected element contains a point of equation (POE) it is removed from the selected element and moved to the next connected element.

If the group being rescaled is circular, a dialog opens, allowing you to select the starting datum network layer element: