Topic: Loft with Editor.Command()

[danjeff]

I'm looking to create a Lofted 3D solids between a number of polylines. I'm looking at the Editor.Command() method because the .Net method CreateLoftedSolid() has a limitation where the cross sections must be planar, where the user command does not. I feel like I've tried a million different combinations but I clearly don't understand how to find the inputs required for a command.
Could anybody help with the lofting inputs for Editor.Command()?

A quick bit of test code I was using is below.

Code - C#: [Select]

1. public static void testingNode(ACDN.Document doc)
2.                 {
3.                     Autodesk.AutoCAD.DynamoApp.Services.DocumentContext ctx = new Autodesk.AutoCAD.DynamoApp.Services.DocumentContext(doc.AcDocument);
4.                     Database db = ctx.Database;
5.                     using (Transaction trans = db.TransactionManager.StartTransaction())
6.                     {
7.                         BlockTable blockTable = db.BlockTableId.GetObject(OpenMode.ForRead) as BlockTable;
8.                         BlockTableRecord btr = trans.GetObject(blockTable[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
9.  
10.                         List<Entity> ents = new List<Entity>();
11.                         Polyline3d outputPolyline3D1 = new Polyline3d();
12.                         Polyline3d outputPolyline3D2 = new Polyline3d();
13.  
14.                         outputPolyline3D1.SetDatabaseDefaults();
15.                         btr.AppendEntity(outputPolyline3D1);
16.                         trans.AddNewlyCreatedDBObject(outputPolyline3D1, true);
17.  
18.                         outputPolyline3D2.SetDatabaseDefaults();
19.                         btr.AppendEntity(outputPolyline3D2);
20.                         trans.AddNewlyCreatedDBObject(outputPolyline3D2, true);
21.  
22.                         ents.Add(outputPolyline3D1);
23.                         ents.Add(outputPolyline3D2);
24.  
25.                         Point3d inputPoint1 = new Point3d(0, 0, 0);
26.                         Point3d inputPoint2 = new Point3d(10, 0, 0);
27.                         Point3d inputPoint3 = new Point3d(10, 10, 0);
28.                         Point3d inputPoint4 = new Point3d(0, 10, 0);
29.  
30.                         Point3d inputPoint5 = new Point3d(0, 0, 10);
31.                         Point3d inputPoint6 = new Point3d(10, 0, 10);
32.                         Point3d inputPoint7 = new Point3d(10, 10, 10);
33.                         Point3d inputPoint8 = new Point3d(0, 10, 10);
34.  
35.                         PolylineVertex3d outputPolylineVertex1 = new PolylineVertex3d(inputPoint1);
36.                         PolylineVertex3d outputPolylineVertex2 = new PolylineVertex3d(inputPoint2);
37.                         PolylineVertex3d outputPolylineVertex3 = new PolylineVertex3d(inputPoint3);
38.                         PolylineVertex3d outputPolylineVertex4 = new PolylineVertex3d(inputPoint4);
39.                         PolylineVertex3d outputPolylineVertex5 = new PolylineVertex3d(inputPoint5);
40.                         PolylineVertex3d outputPolylineVertex6 = new PolylineVertex3d(inputPoint6);
41.                         PolylineVertex3d outputPolylineVertex7 = new PolylineVertex3d(inputPoint7);
42.                         PolylineVertex3d outputPolylineVertex8 = new PolylineVertex3d(inputPoint8);
43.  
44.                         outputPolyline3D1.AppendVertex(outputPolylineVertex1);
45.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex1, true);
46.                         outputPolyline3D1.AppendVertex(outputPolylineVertex2);
47.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex2, true);
48.                         outputPolyline3D1.AppendVertex(outputPolylineVertex3);
49.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex3, true);
50.                         outputPolyline3D1.AppendVertex(outputPolylineVertex4);
51.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex4, true);
52.                         outputPolyline3D2.AppendVertex(outputPolylineVertex5);
53.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex5, true);
54.                         outputPolyline3D2.AppendVertex(outputPolylineVertex6);
55.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex6, true);
56.                         outputPolyline3D2.AppendVertex(outputPolylineVertex7);
57.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex7, true);
58.                         outputPolyline3D2.AppendVertex(outputPolylineVertex8);
59.                         trans.AddNewlyCreatedDBObject(outputPolylineVertex8, true);
60.  
61.                         outputPolyline3D1.Closed = true;
62.                         outputPolyline3D2.Closed = true;
63.  
64.                         Autodesk.AutoCAD.ApplicationServices.DocumentCollection docColl = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager;
65.                         Autodesk.AutoCAD.ApplicationServices.Document testDoc = docColl.MdiActiveDocument;
66.                         Autodesk.AutoCAD.EditorInput.Editor testEdit = testDoc.Editor;
67.                        
68.                         //I don't understand why "testEdit.Command()" throws invalid input
69.                         var ss = Autodesk.AutoCAD.EditorInput.SelectionSet.FromObjectIds(ents.Select(entitiesToCreate => entitiesToCreate.ObjectId).ToArray());
70.                         testEdit.Command("_.loft", ss, " ", "Cross sections only");
71.  
72.                         //This works but is not synchronous
73.                         //testEdit.SetImpliedSelection(ents.Select(ent => ent.ObjectId).ToArray());
74.                         //testDoc.SendStringToExecute("._loft  c ", false, false, false);
75.                        
76.                         trans.Commit();
77.                     }
78.                 }

[gile]

Hi,

Try this way:

Code - C#: [Select]

1. testEdit.Command("_.loft", outputPolyline3D1.ObjectId, outputPolyline3D2.ObjectId, "", "_Cross");

[danjeff]

Hi,

Try this way:

Code - C#: [Select]

1. testEdit.Command("_.loft", outputPolyline3D1.ObjectId, outputPolyline3D2.ObjectId, "", "_Cross");

Hi Gile,

Thanks for the quick answer on this. Unfortunately that doesn't appear to work either. I tried just performing a simple zoom:

Code: [Select]

testEdit.Command("_.ZOOM", ".8x");and that also gives an eInvalidInput exception.

For a little more context this is running in a dynamo zero touch node for civil 3D. Would that have an impact causing Editor.Command to fail?

[gile]

I don't know much about Dynamo and Civil 3d, but Editor.Command only works in Document context (i.e. CommandMethod without the CommandFlags.Session or modal dialog).

[huiz]

Editor must be available, I wrote a node to write a message on the Command Line.


I'm not sure what the problem is but ZT nodes never should dispose the transaction, so no using construction.


https://forum.dynamobim.com/t/c-how-to-create-autocad-entities/35214/12

[danjeff]

Editor must be available, I wrote a node to write a message on the Command Line.


I'm not sure what the problem is but ZT nodes never should dispose the transaction, so no using construction.


https://forum.dynamobim.com/t/c-how-to-create-autocad-entities/35214/12

Interesting. I seemingly haven't had any issues in my working nodes with disposing of a transaction, however the example shows using/disposing the DyanmoApp.Services.DocumentContext transaction causing errors where I have created a transaction within Autocad. I'm quite new to this though so I'm likely just ignorant on the topic.