@Felix Möhlmann and @Jordan Johnson
I am making the advaced model you helped last ike picture.
I want to pick up TWO slotItems from a pair of slots in a bay-level place like above TWO Green Box in slot#1 and slot#2 stored as a pair. After picking up them, two items should be transported to the tote in the combiner.
If It is possible to pick up a pair of slotitems in any place, the combiner tote can be packed with TWO items and can be conveyed.
How can I do it? Please help me.
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One way would be to write a script that labels the slots with a pointer to an adjacent slot, say 'leftSlot'. Then you can add a where clause to a findItem activity that would look for a stored item in the adjacent slot. It would look something like this:
WHERE slot.leftSlot.slotItems.length>0 AND slot.leftSlot.slotItems[1].storageItem.state=Storage.Item.State.Stored
I have a trouble how to get the adjacent slot item pointer and the slotItems length.
I have a followed script in the expression Field in the ItemList1.
--- AdjacentSlot --
Storage.Object StorageObject = puller;
Storage.Slot AdjacentSlot;
Storage.Item StorageItem;
int bayID = value.Type;
int levelID = value.LevelID;
int slotID = value.SlotID;
if ( slotID == 1) {
AdjacentSlot = StorageObject.getSlot(bayID, levelID, 2);
}
else {
AdjacentSlot = StorageObject.getSlot(bayID, levelID, 1);
}
int AdjacentSlotItemsLength = ?;
------
The puller is not the rack but the connected queue. Other than that the code in your attached model looks correct.
Pulling two items, with the second depending on the first is still difficult by just using a default pull strategy though. In the attached model I instead use an instanced process flow to control the combiner pulling the items. First I add the pointer labels that Jason mentioned to each slot in the rack ("Initialize Labels" custom code activity). In the list, instead of counting of many items are in the adjacent slot I simply check if there is any item. If that is the case, the field value becomes a pointer to that adjacent item.
This allows to pull both the first item and get a reference to the second item in one pull activity by using the "SELECT" statement. Afterwards I pull the second item from the list and release both items.
I would read the slots of a level of a bay of a rackobject to get an array of slots. I extract the slot of already known slot item and then test the length of each slot in the array. This approach is universal, because you may have more slots in a rack cell.
You get access to the nodes of slots from your tree, if you cast a slot from your slot item to treenode and go the nodes up until you get to slots. All warehouse properties are still available just by tree operations. You can cast a treenode than back to a class in storage system.
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