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I want to create a piping network.

When I import my AutoCAD file in ArcMap, the program creates an extra reverse polyline.

For example if I have a polyline which is include 50 spot, the GIS draw a polyline from point 1 to 50 and another on from 50 to 1. Exactly reverse.

Can I solve this problem by specifying my first and last point before I import my file to GIS?

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    If your data generates double features, it's likely because they have double features. If it's systematic, then removing those features should be easy enough.
    – Vince
    Commented Nov 29, 2021 at 11:41
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    Do you know which line is correct? By some attribute?
    – Bera
    Commented Nov 29, 2021 at 12:10
  • Adding an image to your question, helps explain your problem.
    – Hornbydd
    Commented Nov 29, 2021 at 15:53

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