Do I have to append TIN Surface to the database?

heyimsp12 — Mon, 17 Oct 2022 06:41:38 GMT

I'm trying to create a TIN Surface in the below function and later I want to extrude it into a solid of depth 2 meters.
While debugging the code, I have noticed that my code runs fine butt I still can't see new surfaces being created on C3D Document. Do I have to append the surface to the Model Space and then also add it to the transaction? If yes, i tried doing that as well but then I am getting error - Object already in database.

Here is my code:

//Create TIN Surface and define its Breaklines and Boundaries. public ObjectId CreateTinSurface(Polyline2d boundary, bool ExtrudeSolid = false, double DepthOfSolid = 2.0) { var surfaceId = new ObjectId(); //Placeholder for surfaceId. using (var db = Application.DocumentManager.MdiActiveDocument.Database) using (var trans = db.TransactionManager.StartTransaction()) using (var blockTable = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead)) using (var modelSpace = (BlockTableRecord)trans.GetObject(blockTable[BlockTableRecord.ModelSpace], OpenMode.ForRead)) { try { //Create an empty TIN surface surfaceId = TinSurface.Create(db, "TempVisSurface_"+boundary.BlockName.Trim().ToString()); //Open the TIN surface TinSurface surface = (TinSurface)trans.GetObject(surfaceId, OpenMode.ForWrite); //Surface Breaklines Definition //BoundarySet will also serve as a BreaklinesSet here, since the surface is empty anyways. ObjectIdCollection breaklineSet = new ObjectIdCollection(); breaklineSet.Add(boundary.ObjectId); surface.BreaklinesDefinition.AddStandardBreaklines(breaklineSet, 1.0, 1.0, 1.0, 0); ////Surface Boundary Definition ObjectIdCollection boundaryIdSet = new ObjectIdCollection(); boundaryIdSet.Add(boundary.ObjectId); surface.BoundariesDefinition.AddBoundaries(boundaryIdSet, 1.0, Autodesk.Civil.SurfaceBoundaryType.Outer, true); //Conditionally also convert the surface into solid with given depth //Ideally, Solid will be created with depth 2m. if (ExtrudeSolid == true) surface.CreateSolidsAtDepth(DepthOfSolid, surface.Layer, 0); //***My question is: do i need to run the below code?? //modelSpace.AppendEntity(surface); //trans.AddNewlyCreatedDBObject(surface, true); //***End of question } catch (Exception ex) { Application.ShowAlertDialog("Error creating TIN Surface.\n" + ex.Message); } } return surfaceId; }

Re: Do I have to append TIN Surface to the database?

hosneyalaa — Mon, 17 Oct 2022 07:33:27 GMT

HI @heyimsp12

Think

YOU Forgot this to the code

trans.Commit();

Re: Do I have to append TIN Surface to the database?

heyimsp12 — Mon, 17 Oct 2022 07:59:46 GMT

Thanks @hosneyalaa. I will end the transaction, but that still doesn't solve the problem.

Also btw, since the transaction is in using-statement, I don't think I necessarily need to close it but I'm not sure. It sounds like a good idea to commit the transaction manually.

Re: Do I have to append TIN Surface to the database?

Jeff_M — Mon, 17 Oct 2022 14:28:46 GMT

C3D handles adding the Surface to the database.

@heyimsp12 wrote:

Thanks @hosneyalaa. I will end the transaction, but that still doesn't solve the problem.

Also btw, since the transaction is in using-statement, I don't think I necessarily need to close it but I'm not sure. It sounds like a good idea to commit the transaction manually.

If you don't Commit the transaction, it is disposed when exiting the Using statement.

I think you will need to Rebuild the Surface prior to creating the solids.

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Do I have to append TIN Surface to the database?

Re: Do I have to append TIN Surface to the database?

Re: Do I have to append TIN Surface to the database?

Re: Do I have to append TIN Surface to the database?