Update PressurePipe diameter

Civil 3D
1

Civil 3D 2026.2

PartSize is not being updated

Pressure Pipes are at same XY locations as Pipes. In the specific example task the gravity Pipe outside diameter must be applied to the Pressure Pipe that has the same XY location.


import clr

clr.AddReference('AcMgd')
clr.AddReference('AcDbMgd')
clr.AddReference('AeccDbMgd')
clr.AddReference('AeccPressurePipesMgd')

from Autodesk.AutoCAD.ApplicationServices import Application
from Autodesk.AutoCAD.DatabaseServices import *
from Autodesk.AutoCAD.EditorInput import *
from Autodesk.Civil.ApplicationServices import CivilApplication
from Autodesk.Civil.DatabaseServices import *
from Autodesk.Civil.ApplicationServices import CivilDocumentPressurePipesExtension
from Autodesk.Civil.DatabaseServices import PressurePartDomainType, PressurePartContextType

data = IN[0]
networkName = IN[1]

doc = Application.DocumentManager.MdiActiveDocument
db = doc.Database
civDoc = CivilApplication.ActiveDocument

result = []
elog = []

doc.LockDocument()
for i in data:
    NewDiameter = i[2] * 1000.0
    with db.TransactionManager.StartTransaction() as trans:
        try:
            networkId = None
            for nid in CivilDocumentPressurePipesExtension.GetPressurePipeNetworkIds(civDoc):
                net = trans.GetObject(nid, OpenMode.ForRead)
                if net.Name == networkName:
                    networkId = nid
                    break
            if networkId is None:
                result.append("network not accessed")
                continue
            ppn = trans.GetObject(networkId, OpenMode.ForWrite)
            partListId = ppn.PartsListId
            partList = trans.GetObject(partListId, OpenMode.ForRead)
            selectedSize = None
            selectedPart = None
            parts = partList.GetParts(PressurePartDomainType.Pipe)
            for part in parts:
                partOuterDia = part.GetProperty(PressurePartContextType.PipeDiameterOutside)
                if abs(partOuterDia - NewDiameter) < 20.0: 
                    selectedPart = part
                    break
            if selectedPart is None:
                result.append("part size not matched ... " + str(NewDiameter))
                continue
            result.append("matched")
            p = trans.GetObject(i[4].InternalObjectId, OpenMode.ForWrite)
            p.PartSize = selectedPart
            ppn.Rebuild()
            trans.Commit()
        except Exception as ex:
            elog.append(ex)

OUT = [result,elog]

Thanks for helping,

K.

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update-diam1365×570 49.3 KB

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2

my bad … PartSize is not a method .. the method is SwapPartSize