Revit二开--划线切板功能源码

Revit二开–划线切板功能源码

前一篇博客划线切板功能解析介绍了划线切板功能，今天把源码补充上

在Revit使用过程中，版的切割对用户来说不是很容易，Revit原生功能在板的分割上并不是十分友好。今天我在这里分享 楼板分割的方法（天花板切割原理类似）。

• 1.鼠标点选楼板。
• 2.调用画线命令，绘制一条直线。
• 3.用绘制的直线切割楼板。

代码详见github：https://github.com/binbinstrong/tangsengjiewa

 /// <summary>
    /// 划线切板
    /// </summary>
    [Transaction(TransactionMode.Manual)]
    class Cmd_CutFloorWithLine : IExternalCommand
    {
   
   
        private Floor floor = null;
        ICollection<ElementId> ids_add = new List<ElementId>();
        private Application App = null;

        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
   
   
            var uiapp = commandData.Application;
            var app = uiapp.Application;
            App = app;
            var uidoc = uiapp.ActiveUIDocument;

            var doc = uidoc.Document;
            var sel = uidoc.Selection;

            var acview = doc.ActiveView;
            app.DocumentChanged += OnDocumentChanged;
            uiapp.Idling += OnIdling;

            floor =
              sel.PickObject(ObjectType.Element, doc.GetSelectionFilter(m => m is Floor)).GetElement(doc) as Floor;

#if Revit2019
            CommandHandlerService.invokeCommandHandler("ID_OBJECTS_PROJECT_CURVE");

#endif



#if Revit2016
              //调用postablecommand 
              var commandid = RevitCommandId.LookupPostableCommandId(PostableCommand.ModelLine);
              uiapp.PostCommand(commandid);
            
#endif


            return Result.Succeeded;
        }

        private void OnIdling(object sender, IdlingEventArgs e)
        {
   
   
            //var App = sender as Application;
            var docsInApp = App.Documents.Cast<Document>();
            var doc = docsInApp.FirstOrDefault();
            var uidoc = new UIDocument(doc);
            var uiapp = uidoc.Application;

            try