Is there a way to query a list of task executors by closest distance to puller?

Question

question

Kari Payton asked Feb 02 2017 at 4:10 PM Jason Lightfoot commented Dec 04 2020 at 1:02 AM

Is there a way to query a list of task executors by closest distance to puller?

querylist.fsmI had a list of 72 operators avaivable on a list and 8 different fixed resources that pull the operators they need from the list for different sub processes. In real life the operators closest to the fixed resource will work in that location. Is there a way to use the query list option for this?

Software Version:

FlexSim 17.0.1

query

querylist.fsm (34.2 KiB)

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Answer 1 · 2017-02-02T16:25:09Z

anthony.johnson answered Feb 02 2017 at 4:25 PM Jason Lightfoot commented Dec 04 2020 at 1:02 AM

You should be able to just pull from the list with the query: ORDER BY distance, as distance is one of the fields you get with a task executer list. You may need to adjust the distance field's code if you have some weird scenario, but in general it should just work.

· 4

Kari Payton commented · Feb 02 2017 at 4:46 PM

Hi @anthony.johnson I created a model example. I am getting an error on the distance field code. querylist.fsm

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querylist.fsm (34.2 KiB)

Jeff Nordgren commented · Feb 06 2017 at 12:10 PM

@anthony.johnson,

In her model when I look at the entries in the List, under the column header "distance", it just says "Puller Required". Should that be a number of some kind? Is that why there are a bunch of errors when the pull is ORDER BY distance ASC?

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Jon Abbott Jeff Nordgren commented · Dec 04 2020 at 12:45 AM

Hi @anthony.johnson and @Jeff Nordgren, I am encountering the same issue in FlexSim 2020 - pulling by distance doesn't seem to work, and all of the list entries just say "Puller required" even after an item has been pulled. I changed the puller to refer to the token label that refers to the other object, and have also tried setting it to leave items on the list, but nothing seems to work. Is there an example model somewhere for this that I can refer to?

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Jason Lightfoot ♦♦ Jon Abbott commented · Dec 04 2020 at 1:02 AM

When you open the list entries look over at the quick properties where you can define the puller using the sample or typing an expression. Selecting your puller will let you see if the "puller required" is replaced with the correct distance expression.

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1607043768486.png (2.0 KiB)

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