I need to trace a geometric network of sewer pipes, but I'm only interested in storm pipes. More specifically storm pipes that connect directly to a starting flag, and not those downstream/upstream of another pipe-type. Each starting flag might have several pipes connected to it of different types (e.g. sanitary, storm, CSO, etc.). Unfortunately, I can't query out the storm pipes because traces only accept geometric networks and not feature layers.

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I've been reading about "in_edge_along_digitized_weight_filter" (in trace geometric network tool), but I can't figure out how to use it. The drop-down box is empty for this option. My geometric network was not built with weights, so I'm guessing that's probably why.

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I would like to avoid rebuilding the geometric network if possible.


Are you able to edit your network features? If so the easiest way to selectively trace features in a geometric network is to set them as Not Enabled (Enabled = False).

Every network feature will have a field called Enabled which you can set to True or False to indicate whether you want the trace to traverse those assets or not. If you select all your non-Storm assets and set Enabled to False, and then select all Storm assets and set Enabled to True, your trace will only run on your Storm assets.

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If you already have different features with Enabled set you may need to copy your network out to another database or perform your edit and trace in a version. Once you've completed your trace you can always revert your Enabled values back.

  • Thank you for your answer! I was definitely over-complicating this problem. It takes forever to field calculate rows to disabled for the traces and back because of the size of our network, but this definitely solves the problem. – Priscilla Sep 22 '16 at 13:15

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