Binary Constraint for Objects Overlapping

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Felipe Capalbo asked Mar 25, '24 Jason Lightfoot commented Mar 31, '24

Binary Constraint for Objects Overlapping

I'm building a Reinforcement Learning model to optimize a layout. When the model provides a solution, some of the objects may be overlapped.

Is there a way to create a script to set a binary value when any of the objects in the 3D overlaps? This binary value will be used in the Reward Function to set it to 0 (invalid solution) or 1 (valid solution).

Software Version:

FlexSim 23.2.3

overlapping

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

Joerg Vogel commented · Mar 26 at 06:04 AM

This would be a feature of a physical simulation tool, which isn’t FlexSim. You have to implement it yourself by checking size and location to find intersections. Some user here might to propose to use the agent system tool, but it will reduce your running performance massively.

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Jason Lightfoot ♦♦ commented · Mar 31 at 12:47 PM

Hi @Felipe Capalbo, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always comment back to reopen your question.

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Answer 1 · 2024-03-26T08:41:12Z

Felix Möhlmann answered Mar 26, '24 Jason Lightfoot commented Mar 26, '24

If the rotations of the objects in question don't get too crazy, it should be sufficient to check if any of the corners of one object lies within the bounding volume of the other to detect overlap.

Attached is an example model with a user command that checks for overlap on the XY-plane.

2d-overlap-fm.fsm

2d-overlap-fm.fsm (34.0 KiB)

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5 |100000

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

Felipe Capalbo commented · Mar 26 at 12:23 PM

This user command works when the objects are partially overlapped, but when its totally overlapped, which will be my case of use, it don't accuse as "1".

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1711455728505.png (195.5 KiB)

1711455739439.png (129.7 KiB)

Jason Lightfoot ♦♦ Felipe Capalbo commented · Mar 26 at 12:46 PM

You might find it useful to split out the function to test if a single point is within a rectangle as I have in this user library which will autoinstall these commands:

withinRectangle23.2.fsl

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1711457132313.png (2.7 KiB)

withinrectangle232.fsl (896 B)

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