List Lacing Trouble

Lists-Logic
1

I am trying to check if geometry intersects in a list using longest lacing and was running into some trouble with lists.

I have the following list structure:

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image1853×1056 212 KB

My goal is to check list 0, (containing 4 total solids) to see if they intersect with any of the other solids in this list. My list lacing trouble comes into play in that my desired output should of list 0 should only have 4 total sublists in it, the image below has 5 sublists in list 0.

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image1715×997 192 KB

I’ve tried a whole bunch playing with differing lacing and still can’t get my lacing to work. Any ideas on how to accomplish this?

I have a simple model that works on one stack of solids, but I can’t get it to work with lists of solids. Desired output for list 0 shown below:

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image968×530 65.2 KB

2

Does cross product lacing work with and anytrue check afterwards?

3

This seems to work, but it would be nice to get a more elegant solution to work.

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image1557×885 151 KB

4

You can use List.Combinations node
image

5

look here:

codeblock:

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image1062×375 12.4 KB

and some variations:
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image1515×860 53.7 KB

also use FirstItem and RestOfItems, if you need check first sublist only.