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Claire Krupp avatar image
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Claire Krupp asked Claire Krupp commented

Incorrect Graphical location on AStar bridges - possible bug

I am modeling a large number (~1000) of employees moving around a plant using People Flow and AStar. The layout represents two floors, and stairs are represented with bridges.

One particular group of employees is approaching a bridge and then "jumping" to a completely different location (actually outside the AStar boundaries). They then move parallel to their correct path. Some of them jump back to the correct location when they encounter a "BlockEvent", but then they jump back again when they enter the next bridge. Logically they "think" they are in the right place.

It only happens with one particular group of 14 employees who work at a location which is (accidentally) a sub-node of a Plane, although it is not physically located on that plane. (But they have already left the work location when they get to the bridge.)

I also have an intermittent (and probably unrelated) graphic problem with the Heat Map function, which can only be solved by closing FlexSim and reopening the model.

I can't post the model here because of confidentiality, but I will email it to [email protected] .

FlexSim 19.0.0
astar navigatorpeople flowheat mapbridges
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Phil BoBo avatar image
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Phil BoBo answered Claire Krupp commented

At first glance, it appears that the issue may be related to those objects being within a VisualTool. This is probably a bug with the A* bridge object, but it seems you can work around the issue by adding a Move Object activity to move the people back into the model before giving them the Walk task:

We're still debugging why it isn't working the way it is configured, but you should be able to use the workaround in the meantime.


pf.png (31.9 KiB)
move-object.png (32.8 KiB)
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Claire Krupp avatar image Claire Krupp commented ·

OK thanks, I can do that. But I'd rather not have them attached to the plane in the first place! How do I move the location out of the plane? I tried looking at the tree but it would not let me drag the sub-node to a main-node position.

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Ben Wilson avatar image Ben Wilson ♦♦ Claire Krupp commented ·

Hi @Claire K,

You can use the Edit Selected Objects sidebar (open from main menu > View > Edit Selected Objects):

Ctrl-click or Shift-click nodes in the tree to red-select them, then yellow-highlight (left-click) any other node (like the model), then click the button to move selected nodes into highlighted.

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Claire Krupp avatar image Claire Krupp Ben Wilson ♦♦ commented ·

Thanks @Ben Wilson! That solved my problem. (And removed an annoying little frustration!)

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Phil BoBo avatar image Phil BoBo ♦♦ commented ·

The location positioning bug has been fixed for 19.0.1, which is now available.

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Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.