currently, the GangElementID of processed GangElements is placed into the Layout/Position elements
there is no explicit reference to the unprocessed or partially processed elemnts
a.) the list can be calculated from the Layout
b.) calculation of partial processing is fairly complex
we could add GangElement/@PlacedAmount (Attribute name TBD) that explicitly states the amount of all placed elements, and 0 if the element was not processed.
Table 6.164: GangElement Element
|PlacedQuantity ? New in 2.1||integer||PlacedQuantity SHALL specify the total quantity of all positions that contain this GangElement. Note: PlacedQuantity is a result of the ganging calculation and updated in the input to SheetOptimizing by the gang engine.|