by Fenton Webb
Here’s how to iterate a pipe network in Plant3d…
First in .NET…
[CommandMethod("PipeWalk")] public void pipeWalk() { // 4.1 Declare a variable as a PlantProject. Instantiate it using // the CurrentProject of PlantApplication PlantProject mainPrj = PlantApplication.CurrentProject; // 4.2 Declare a Project and instantiate it using // ProjectParts[] of the PlantProject from step 4.1 // use "Piping" for the name. This will get the Piping project Project prj = mainPrj.ProjectParts["Piping"]; // 4.3 Declare a variable as a DataLinksManager. Instantiate it using // the DataLinksManager property of the Project from 4.2. DataLinksManager dlm = prj.DataLinksManager; // PipingProject pipingPrj = (PipingProject) mainPrj.ProjectParts["Piping"]; // DataLinksManager dlm = pipingPrj.DataLinksManager; // Get the TransactionManager TransactionManager tm = AcadApp.DocumentManager.MdiActiveDocument.Database.TransactionManager; // Get the AutoCAD editor Editor ed = AcadApp.DocumentManager.MdiActiveDocument.Editor; // Prompt the user to select a pipe entity PromptEntityOptions pmtEntOpts = new PromptEntityOptions("Select a Pipe : "); PromptEntityResult pmtEntRes = ed.GetEntity(pmtEntOpts); if (pmtEntRes.Status == PromptStatus.OK) { // Get the ObjectId of the selected entity ObjectId entId = pmtEntRes.ObjectId; // Use the using statement and start a transaction // Use the transactionManager created above (tm) using (Transaction tr = tm.StartTransaction()) { try { // 4.4 Declare a variable as a Part. Instantiate it using // the GetObject Method of the Transaction created above (tr) // for the ObjectId argument use the ObjectId from above (entId) // Open it for read. (need to cast it to Part) Part pPart = (Part)tr.GetObject(entId, OpenMode.ForRead);
// 4.5 Declare a variable as a PortCollection. Instantiate it // using the GetPorts method of the Part from step 4.4. // use PortType.All for the PortType. PortCollection portCol = pPart.GetPorts(PortType.All); // (PortType.Both); // 4.6 Use the WriteMessage function of the Editor created above (ed) // print the Count property of the PortCollection from step 4.5. // use a string similar to this: "n port collection count = " ed.WriteMessage("n port collection count = " + portCol.Count); // 4.7 Declare a ConnectionManager variable. // (Autodesk.ProcessPower.PnP3dObjects.ConnectionManager) // Instantiate the ConnectionManager variable by making it // equal to a new Autodesk.ProcessPower.PnP3dObjects.ConnectionManager(); ConnectionManager conMgr = new Autodesk.ProcessPower.PnP3dObjects.ConnectionManager(); // 4.8 Declare a bool variable named bPartIsConnected and make it false bool bPartIsConnected = false; // 4.9 Use a foreach loop and iterate through all of the Port in // the PortCollection from step 4.5. // Note: Put the closing curly brace below step 4.18 foreach (Port pPort in portCol) { // 4.10 Use the WriteMessage function of the Editor created above (ed) // print the Name property of the Port (looping through the ports) // use a string similar to this: "nName of this Port = " + ed.WriteMessage("nName of this Port = " + pPort.Name); // 4.11 Use the WriteMessage function of the Editor created above (ed) // print the X property of the Position from the Port // use a string similar to this: "nX of this Port = " + ed.WriteMessage("nX of this Port = " + pPort.Position.X.ToString()); // 4.12 Declare a variable as a Pair and make it equal to a // new Pair(). Pair pair1 = new Pair(); // 4.13 Make the ObjectId property of the Pair created in step 4.10 // equal to the ObjectId of the selected Part (entId) pair1.ObjectId = entId; // 4.14 Make the Port property of the Pair created in step 4.10 // equal to the port from the foreach cycle (step 4.7) pair1.Port = pPort
; // 4.15 Use an if else and the IsConnected method of the ConnectionManager // from step 4.7. Pass in the Pair from step 4.12 // Note: Put the else statement below step 4.17 and the closing curly // brace for the else below step 4.18 if (conMgr.IsConnected(pair1)) { // 4.16 Use the WriteMessage function of the Editor (ed) // and put this on the command line: // "n Pair is connected " ed.WriteMessage("n Pair is connected "); // 4.17 Make the bool from step 4.8 equal to true. // This is used in an if statement in step 4.19. bPartIsConnected = true; } else { // 4.18 Use the WriteMessage function of the Editor (ed) // and put this on the command line: // "n Pair is NOT connected " ed.WriteMessage("n Pair is NOT connected "); } } // 4.19 Use an If statement and the bool from step 4.8. This will be // true if one of the pairs tested in loop above loop was connected. // Note: Put the closing curly brace after step 4.26 if (bPartIsConnected) { // 4.20 Declare an ObjectId named curObjID make it // equal to ObjectId.Null ObjectId curObjId = ObjectId.Null; // 4.21 Declare an int name it rowId int rowId; // 4.22 Declare a variable as a ConnectionIterator instantiate it // using the NewIterator method of ConnectionIterator (Autodesk.ProcessPower.PnP3dObjects.) // Use the ObjectId property of the Part from step 4.4 ConnectionIterator connectIter = ConnectionIterator.NewIterator(pPart.ObjectId); //need PnP3dObjectsMgd.dll // You could Also use this, need to ensure that pPort is connected // Use the ConnectionManager and a Pair as in the example above. // conIter = ConnectionIterator.NewIterator(pPart.ObjectId, pPort); // 4.23 Use a for loop and loop through the connections in the // ConnectionIterator from step 4.22. The initializer can be empty. // Use !.Done for the condition. use .Next for the iterator. // Note: Put the closing curly brace after step 4.26 for (; !connectIter.Done(); connectIter.Next()) { // 4.24 Make the ObjectId from step 4.20 equal to the ObjectId // property of the ConnectionIterator curObjId = connectIter.ObjectId; // 4.25 Make the integer from step 4.21 equal to the return from // FindAcPpRowId method of the DataLinksManager from step 4.3. // pass in the ObjectId from step 4.24 rowId = dlm.FindAcPpRowId(curObjId); //4.26 Use the WriteMessage function of the Editor (ed) // and pring the integer from step 4.25. Use a string similar to this // this on the command line: // "n PnId = " + ed.WriteMessage("n PnId = " + rowId); } } } catch (System.Exception ex) { ed.WriteMessage(ex.ToString()); } } } } now in C++… // Iterate a pipe network (from specific part / port) void ct_iter_port() { ads_name entname; ads_point pt; int ret = acedEntSel(L"nSelect part on a network: ", entname, pt); if (ret != RTNORM) { return; // cancelled } AcPp3dConnectionIterator* pIter = NULL; try { AcDbObjectId objId; eOkThrow(acdbGetObjectId(objId, entname)); AcDbObjectPointer pPart(objId, AcDb::kForRead); eOkThrow(pPart.openStatus()); AcPp3dPortArray ports; eOkThrow(pPart->getPorts(ports, AcPpDb3dPart::kBoth)); eOkThrow(pPart.close()); int index = -1; do { ret = acedGetInt(L"nEnter the port index: ", &index); if (ret != RTNORM) { return; // cancelled } } while (index < 0 || index >= ports.length()); AcPp3dPair pair(objId, ports[index]); eOkThrow(AcPp3dConnectionIterator::newIterator(pair, pIter)); for ( ; !pIter->done(); pIter->next()) { AcDbObjectId curObjId; eOkThrow(pIter->getObjectId(curObjId)); listPart(curObjId); } } catch (const Acad::ErrorStatus& es) { acutPrintf(L"nERROR: %d", es); } if (pIter != NULL) { delete pIter; } } <p class="MsoNormal" style="margin: 0in 0in 0pt;line-height: normal"><span lang="EN-US" style="font-family:"><font face="Consolas"><font style="font-size: 9.5pt" color="#000000"> </font></font></span></p> </div> </div> </div>
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