Hello everyone,

I have a drawing which consists of a series of 3d blockreferences. I would like to retrieve just the bottom lines from them.

I’ve got as far as exploding all of them to lines, which is easy. Now I’ve got a collection of lines. Basically, for horizontal lines, if x and y are exactly the same, but the z is different, I want the line with the higher z to be removed. In case of vertical lines, those can all be removed.

Do any of you have some input as to where to go next as I can’t seem to find the nodes I think I need.

Thanks in advance for any advice!