Reconnect Gravity Pipes to Structures in Civil 3D (Dynamo or API Solution?)

[i_syed7CYDV]

Hello, everyone.

I am working on a Gravity Pipe Network (storm/sewer) in Civil 3D, and I have multiple locations where pipes are visually touching the manholes but are logically disconnected (Start/End Structure not assigned).

Since this issue exists in many locations, I would like to know:

Is there a way to reconnect all pipes to the nearest structures in one batch using:

• Dynamo for Civil 3D, or
• Civil 3D API / .NET plugin, or
• any built-in command?

The pipe endpoints are already very close to the structures (within a small tolerance).

I am looking for a one-time automated solution instead of manually assigning start/end structures.

Any guidance or recommended workflow would be appreciated

I attached the drawing and highlighted those locations with circles

[i_syed7CYDV]

Any update please 

[Jeff_M]

@i_syed7CYDV The .NET API has the Structure.ConnectToPipe Method which could be used to accomplish this task. I would loop through the Network's structures and pipes looking for those that are within a specific tolerance then connect if close.

[i_syed7CYDV]

@Jeff_M 

Thank you for the suggestion.
Would it be possible to share a simple sample code using Structure.ConnectToPipe with a tolerance check?
It would really help.

[i_syed7CYDV]

Any update please.

[Jeff_M]

@i_syed7CYDV I suggested what you can do, have you tried to create your own code using my suggestion? I had hand surgery and have no plans to do any code writing for sometime.

[BlackBox_]

@i_syed7CYDV - give this a try, so my partner @Jeff_M can heal: 

                using (Transaction tr = db.TransactionManager.StartTransaction())
                {
                    Structure structure = (Structure)tr.GetObject(strId, OpenMode.ForWrite);

                    foreach (ObjectId ssId in ssIds)
                    {
                        Pipe pipe = (Pipe)tr.GetObject(ssId, OpenMode.ForRead);
                        
                        if (pipe.ConnectedPartCount == 2)
                        {
                            ed.WriteMessage($"\nPipe \"{pipe.Name}\" is already connected at both ends, skipping.");
                            continue;
                        }

                        if (pipe.StartStructureId == strId || pipe.EndStructureId == strId)
                        {
                            ed.WriteMessage($"\n** Pipe \"{pipe.Name}\" is already connected to structure \"{structure.Name}\". ** ");
                            continue;
                        }

                        try
                        {
                            pipe.UpgradeOpen();
                            bool ok = true;

                            if (pipe.StartStructureId == ObjectId.Null)
                            {
                                ok = false;
                                structure.ConnectToPipe(pipe.ObjectId, ConnectorPositionType.Start);
                            }
                            
                            if (ok)
                                structure.ConnectToPipe(pipe.ObjectId, ConnectorPositionType.End);

                            ed.WriteMessage($"\nConnected pipe \"{pipe.Name}\" to structure \"{structure.Name}\".");
                        }
                        catch (System.Exception ex)
                        {
                            ed.WriteMessage($"\n** Failed to connect pipe \"{pipe.Name}\" to structure \"{structure.Name}\": {ex.Message} **");
                        }
                    }

                    tr.Commit();
                }