Filter lines to just keep highest from an overlapping set

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Rev Roads Model.dwg (1.6 MB)

I’m trying to keep only the top line (highest elevation) in each set of overlapping lines in the attached drawing. Not managed it yet, any advice much appreciated. Richard.

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Are rhe elevaions close ro rhe same or eg at 0 and 300 or separated clearly in the vertical

If separated clearly in the vertical - in 3D view change the color of the lower ones to a clearly identifiable color, and then move them all from 0,0 to 0.002,0.002 so that they are clearly the same but separated laterally from the original lines that are the 3D. You know the ones that you want to filter away are orange let’s say vs eg blue or green for the higher ones - this makes it easy to see them and get rid of them. When done, any that remain get moved back from 0.002, 0.002 to 0,0

This approach works when you have a lot of duplicates that are clearly separated or that can be clearly separated vertically.

If the lines are close vertically and are not separated by layer as well then you would have to separate them somehow first.

Alan

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Thanks Alan, recolouring and the 3D View were helpful.