How to programmatically access resource array index

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Stan Davis asked Dec 1, '16 Kari Payton commented Apr 3, '17

How to programmatically access resource array index

How do you access a specific resource index when an array has been created on the label that references all the acquired resource.

To illustrate, this only changes the color of the object referenced in index 1 even if multiple resources are acquired....

colorlime(getlabel(token, "myoperator"));

Suppose I need to change the color of only the 2nd resource of 3 total acquired resources. How would that be accomplished?

I studied the switch code in the Move Object activity's 'Object From Label Array', but I don't know how to apply it in this scenario.

Thanks

Software Version:

FlexSim 16.2.0

process flow

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Matthew Gillespie ♦♦ commented · Dec 01, 2016 at 08:31 PM

Just FYI, this will be much easier in FlexSim 2017 which will be out soon (the beta is available now). We've added dot syntax and a new Array type to FlexScript so accessing the 2nd resource would look like this:

token.myOperator[2]

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Kari Payton Matthew Gillespie ♦♦ commented · Apr 03, 2017 at 04:08 PM

@Matthew Gillespie using dot syntax, how can you access all of the acquired resources (i.e. I want both cranes to travel,load item, travel, and unload)? Or is this not possible? This is what the token label looks like:

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cranearray.png (4.3 KiB)

Matthew Gillespie ♦♦ Kari Payton commented · Apr 03, 2017 at 07:22 PM

You still need to access each one individually. I would suggest using a RunSubFlow activity to create a child token for each individual crane. See this post (especially Matt Long's model in the comments) for an example of this. For the quantity of child tokens to make you would use:

token.Crane.length

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Answer 1 · 2016-12-01T19:28:01Z

Sam Stubbs answered Dec 1, '16 Mischa Spelt commented Apr 3, '17

In order to get a reference to specific ranks within your Array, I would set a label as a reference. IN the picklist options for Assign Label Activity under the value field you can select Array > Value from Label Array. This will let you set the index number you're trying to select of which label (In this case whatever label you set your Resource as.)

Then you can use the new label reference you created to alter the color or whatever logic you need.

I've included a simple example.

color-example.fsm

label-array.png (24.4 KiB)

color-example.fsm (20.0 KiB)

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Stan Davis commented · Dec 01, 2016 at 08:11 PM

Sam,

That will work for me! I need to remember that while the acquired activity's label is destroyed once all the resources are released, the array reference label persists although now empty. I appreciate the very quick reply.

Stan

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Mischa Spelt Stan Davis commented · Apr 03, 2017 at 04:12 PM

Note that in the same menu as in the screenshot, there is also a "Remove Bad References" option which will cut out all items in the array that are no longer pointing to a valid object.

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