Cannot create roof through the API

VisualARQ
,
1

Hi all,

For some reason, I cannot create a roof using the Script.AddRoofFromCurve() method. Yet I can select the created curve inside of Rhino and do vaRoof from curves and it will work just fine?

The AddRoofFromCurve always returns an empty Guid.

using Masonry3D.Core.HelpersIn3D;
using Rhino;
using Rhino.Commands;
using Rhino.DocObjects;
using Rhino.Geometry;
using System;
using System.Drawing;
using Varq = VisualARQ.Script;

namespace Masonry3D.RC.Commands.RhinoCommands;

public class TestAnythingCommand : Command
{
    #region Rhino Command Boilerplate
    public TestAnythingCommand()
    {
        // Rhino only creates one instance of each command class defined in a
        // plug-in, so it is safe to store a refence in a static property.
        Instance = this;
    }

    ///<summary>The only instance of this command.</summary>
    #pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring as nullable.
    // This is default RhinoCommon code - it knowns what it is doing
    public static TestAnythingCommand Instance { get; private set; }
    #pragma warning restore CS8618
    #endregion

    ///<returns>The command name as it appears on the Rhino command line.</returns>
    public override string EnglishName => "t3TestAnything";


    protected override Result RunCommand(RhinoDoc doc, RunMode mode)
    {
        Polyline pl = TraceHelper.PolylineTrace(doc); // Spits out a standard, closed polyline

        Curve cv = pl.ToNurbsCurve(); // I can make a VA roof from this curve actually inside of Rhino

        ObjectAttributes attributes = new() { ColorSource = ObjectColorSource.ColorFromObject, ObjectColor = Color.Purple };

        doc.Objects.Add(cv, attributes);

        doc.Views.Redraw();

        Guid[] result = Varq.GetAllRoofStyleIds(); // Doesn't matter if I use my own style

        Guid id = Varq.AddRoofFromCurve(result[0], cv); // gives me Guid.Empty

        doc.Views.Redraw();

        return Result.Success;
    }

}

Thank you for your help!