get ObjectId from CorridorSurface?

[joantopo]

Hi.

If I have TIN surfaces in drawing, I can read (transaction) that objects.

PromptEntityOptions entOpts2 = new PromptEntityOptions("\nSelect TIN surface: ");

            var _with2 = entOpts2;
            _with2.SetRejectMessage("\Incorrect object.");


            _with2.AddAllowedClass(typeof(Autodesk.Civil.DatabaseServices.TinSurface), true);
            _with2.AllowNone = true;
            _with2.AllowObjectOnLockedLayer = true;
            PromptEntityResult entRes2 = ed.GetEntity(entOpts2);
            if (entRes2.Status != PromptStatus.OK)
                return;

            ObjectId IdSurf = entRes2.ObjectId;

 using (Transaction trans = db.TransactionManager.StartTransaction())
 {


  TinSurface sup = trans.GetObject(IdSurf, OpenMode.ForRead as TinSurface);
 
 

 trans.Commit();
 }

However, if I have corridor surfaces in the drawing, I can´t read them (doing the transaction), because CorridorSurfaces have "surfaceId" property and "ObjectId" is not valid.

So, How can I do it?

Thanks.

[joantopo]

Moreover, I get this bug:

[Jeff_M · Accepted solution]

Joan, A corridor surface is just a TinSurface. You can select it on screen just like any other surface.

[joantopo]

Ok.

Thanks Jeff.

[joantopo]

Sorry.

How do you know if a TIN Surface is a corridor surface?

I don´t find any property in TinSurface class about this?

Perhaps, it was good an extension method (for TinSurfaces) like "IsFromCorridor".

[joantopo]

Do I have to get a corridor surface List and compare their "Names" property  with the "DisplayName" property of TinSurfaces, to guess if  each surface is actually a corridor surface?

I have seen this:

http://knowledge.autodesk.com/support/autocad-civil-3d/learn-explore/caas/CloudHelp/cloudhelp/2015/E...

[Jeff_M · Accepted solution]

Like so...

                TinSurface tinsurf = civilEnt as TinSurface;
                if (tinsurf!=null)
                {
                    for (int i = 0; i < tinsurf.Operations.Count; i++)
                    {
                        SurfaceOperation op = tinsurf.Operations[i];
                        if (op.Enabled && op.GetType() == typeof(SurfaceOperationCreatedFromCorridor))
                        {
                            ed.WriteMessage("This is a Corridor surface.\r\n");
                            break;
                        }
                    }
                }

[joantopo]

Great !

Now it´s a property (field) of my Surface List.

  public static List<toolsC3D.Surfaces> ComprobarSuperficies_sonCorridorSurfaces(List<Surfaces> listSup)
        {
                Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
             Database db = doc.Database;
             Editor ed = doc.Editor;

             using (Transaction trans = db.TransactionManager.StartTransaction())
             {

                 for (int k = 0; k <= listSup.Count - 1; k++)  //revisamos si cada superficie de la lista, es una superficie de obra lineal.
                 {
                     TinSurface tinsurf = trans.GetObject(listSup[k].Id, OpenMode.ForRead) as TinSurface;
                     if (tinsurf != null)
                     {
                         for (int i = 0; i < tinsurf.Operations.Count; i++)
                         {
                             SurfaceOperation op = tinsurf.Operations[i];
                             if (op.Enabled && op.GetType() == typeof(SurfaceOperationCreatedFromCorridor))
                             {
                                 listSup[k].IsSurfaceCorridor = true;
                                 // ed.WriteMessage("This is a Corridor surface.\r\n");
                             }
                         }
                     }

                 }
                 trans.Commit();
             }
            

            return listSup;
        }

[Jeff_M]

For anyone else coming across this thread, the SurfaceOperationCreatedFromCorridor type was not available in C3D2013's initial inclusion of the Surface .NET API. So the above code will only work with C3D2014 and newer.