using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

using System;

namespace HYJig
{
    [Regeneration(0)]
    [Transaction(TransactionMode.Manual)]
    public class JigCircle : IExternalCommand
    {
        public Result Execute(ExternalCommandData cmdData, ref string message, ElementSet elements)
        {
            UIDocument activeUIDocument = cmdData.Application.ActiveUIDocument;
            ViewAssist.ViewValidating(activeUIDocument.Document, activeUIDocument.ActiveView);
            XCircleJig xcircleJig = new XCircleJig(activeUIDocument);
            XYZ xyz = xcircleJig.PickCenterPoint("请确定圆中心点:");
            Result result;
            if (xyz == null)
            {
                xcircleJig.Dispose();
                result = 0;
            }
            else
            {
                double num = xcircleJig.PickCircleRadius(xyz, "请确定圆上一点：");
                if (num == 0.0)
                {
                    xcircleJig.Dispose();
                    result = 0;
                }
                else
                {
                    Transaction transaction = new Transaction(activeUIDocument.Document);
                    transaction.Start("CreateCurve");
                    Arc arc = Arc.Create(xyz, num, 0.0, 6.2831853071795862, activeUIDocument.ActiveView.RightDirection, activeUIDocument.ActiveView.UpDirection);
                    activeUIDocument.Document.Create.NewDetailCurve(activeUIDocument.ActiveView, arc);
                    transaction.Commit();
                    xcircleJig.Dispose();
                    result = 0;
                }
            }
            return result;
        }
    }
}