Creating A Roof Using Revit APIs

[aniket_pachore]

I am facing an issue while creating a roof using C# Revit APIs.
              I am automating the conversion of 2D AutoCAD drawings to Revit 3D models. The process involves reading data from AutoCAD drawings. I store the polylines (on which I want to create the roof) in a list, specifically List<PolyLine> roofPolyLineList, and pass it to my function. First, I convert the polyline into a CurveArray, CurveArray topFloorCurveArray = application.Create.NewCurveArray(), and pass it to the API. I am not getting any errors, but the roof is not created in Revit.
I have attached my code below.
Please help me to solve the issue.

private void CreateRoof(Document doc, List<Level> floorlevels, List<PolyLine> roofPolyLineList)
        {
            Application application = doc.Application;
            CurveArray topFloorCurveArray = application.Create.NewCurveArray();

            RoofType roofType= new FilteredElementCollector(doc).OfClass(typeof(RoofType)).FirstOrDefault<Element>() as RoofType;

            Transaction trans = new Transaction(doc, "Create Roof");
            trans.Start();
            {
                for (int i = 0; i < roofPolyLineList.Count; ++i)
                {
                    var points = roofPolyLineList[i].GetCoordinates();

                    for (int j = 0; j < points.Count - 1; j++)
                    {
                        var start = points[j];
                        var end = points[j + 1];
                        var line = Line.CreateBound(new XYZ(start.X, start.Y, start.Z), new XYZ(end.X, end.Y, end.Z));
                        topFloorCurveArray.Append(line);
                    }
                }

                for (int i = 0; i < floorlevels.Count; i++)
                {
                    int count = floorlevels.Count;
                    string name = "Floor " + (count - 1);
                    Level level = floorlevels[i];

                    if (level.Name == name)
                    {
                        ModelCurveArray footPrintToModelCurveMapping = new ModelCurveArray();
                        FootPrintRoof footprintRoof = doc.Create.NewFootPrintRoof(topFloorCurveArray, level, roofType, out footPrintToModelCurveMapping);

                        ModelCurveArrayIterator iterator = footPrintToModelCurveMapping.ForwardIterator();
                        iterator.Reset();
                        while (iterator.MoveNext())
                        {
                            ModelCurve modelCurve = iterator.Current as ModelCurve;
                            footprintRoof.set_DefinesSlope(modelCurve, true);
                            footprintRoof.set_SlopeAngle(modelCurve, 0.5);
                        }
                    }
                }
                doc.Regenerate();
                trans.Commit();
            }
        }

[scgq425]

Hi @aniket_pachore :

i was has a seem problem , when i place a base-face-family use api , run succeed and not visable or move it will visable  ,the result  is a old version bug , u can update  revit version and try again .

i dont konw u revit version ,so  if a old version , can try this .