Sorting/selecting points according to line collisions

I would have expected this to work:

But I obviously missed something. Can anyone spot what it might be?


3. Attach minimal versions of all the relevant files

It’s often necessary to use Smaller Than instead of Equals, with an expression on the ‘A’ input to get absolute value: “abs(x)”. And the ‘B’ input set to a small value like 0.01 (or less).

Thanks, that did the trick!