视频连接http://v.bimcc.com/course/35/tasks

一、系统族的创建

1.各自类下面的相应方法

以墙为例

namespace RevitDevelopClass
{
    [Transaction(TransactionMode.Manual)]
    class Class6 : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uidoc = commandData.Application.ActiveUIDocument;
            Document doc = uidoc.Document;

            XYZ pnt1 = uidoc.Selection.PickPoint(ObjectSnapTypes.None, "请选择墙的起点");
            XYZ pnt2 = uidoc.Selection.PickPoint(ObjectSnapTypes.None, "请选择墙的终点");
            Line li = Line.CreateBound(pnt1, pnt2);
            ElementId levelId = new ElementId(2607);
            //视频中用的是底部约束value的id 311，这里用的是parameters中的顶部约束value的id(因为本模型样例中没有底部约束属性)
            //id会随着模型样例的改变而改变，所以一般用过滤器选择familysymbol或系统族，而不是这样简单粗暴的创建。


            using (Transaction trans = new Transaction(doc, "创建墙"))
            {
                trans.Start();
                Wall.Create(doc, li, levelId, false);
                trans.Commit();
            }

            return Result.Succeeded;
        }
    }
}

创建墙

2.Document下面的相应方法

二、可载入族的创建

Document.NewFamilyInstance

以柱子为例

namespace RevitDevelopClass
{
    [Transaction(TransactionMode.Manual)]
    class Class6 : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uidoc = commandData.Application.ActiveUIDocument;
            Document doc = uidoc.Document;

            XYZ pnt1 = uidoc.Selection.PickPoint(ObjectSnapTypes.None, "请选择墙的起点");
            //XYZ pnt2 = uidoc.Selection.PickPoint(ObjectSnapTypes.None, "请选择墙的终点");
            //Line li = Line.CreateBound(pnt1, pnt2);
            ElementId levelId = new ElementId(2607);
            Level lev = doc.GetElement(levelId) as Level;

            ElementId columSymbol = new ElementId(263331);//这里是选择了柱的familysymbol的Id
            FamilySymbol fs = doc.GetElement(columSymbol) as FamilySymbol;

            using (Transaction trans = new Transaction(doc, "创建墙"))
            {
                trans.Start();
                //Wall.Create(doc, li, levelId, false);
                doc.Create.NewFamilyInstance(pnt1,fs,lev,Autodesk.Revit.DB.Structure.StructuralType.NonStructural);
                trans.Commit();
            }

            return Result.Succeeded;
        }
    }
}

创建柱

三、删除操作。

namespace RevitDevelopClass
{
    [Transaction(TransactionMode.Manual)]
    class Class7 : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uidoc = commandData.Application.ActiveUIDocument;
            Document doc = uidoc.Document;

            Reference refer = uidoc.Selection.PickObject(ObjectType.Element);
            Element ele = doc.GetElement(refer);

            using (Transaction trans = new Transaction(doc, "删除墙"))
            {
                trans.Start();
                doc.Delete(ele.Id);
                trans.Commit();
            }

            return Result.Succeeded;
        }
    }
}

删除选中的图元