Revit开发 - 面积边界及面积（Area & AreaBoundaryLine）

小灰灰 2022-02-28 14:48 899阅读 0赞

本文演示创建面积边界及面积。

using Autodesk.Revit.Attributes;
    using Autodesk.Revit.DB;
    using Autodesk.Revit.UI;
    
    namespace RevitAddin4
    {
        [TransactionAttribute(TransactionMode.Manual)]
        public class RevitAddin : IExternalCommand
        {
            public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                Document doc = uiDoc.Document;
                ViewPlan viewPlan = doc.ActiveView as ViewPlan;
                if (viewPlan == null)
                {
                    TaskDialog.Show("错误", "不是viewPlan");
                    return Result.Failed;
                }
               
                using (Transaction tr = new Transaction(doc))
                {
                    Autodesk.Revit.Creation.Document document = doc.Create;
                    //通过创建四条边界线来形成一个正方形的闭合区域
                    tr.Start("Create area bound");
                    var sketchPlane = viewPlan.SketchPlane;
                    document.NewAreaBoundaryLine(sketchPlane, 
                       Line.CreateBound(new XYZ(20, 20, 0), new XYZ(40, 20, 0)), viewPlan);
                    document.NewAreaBoundaryLine(sketchPlane,
                       Line.CreateBound(new XYZ(40, 20, 0), new XYZ(40, 40, 0)), viewPlan);
                    document.NewAreaBoundaryLine(sketchPlane,
                       Line.CreateBound(new XYZ(40, 40, 0), new XYZ(20, 40, 0)), viewPlan);
                    document.NewAreaBoundaryLine(sketchPlane,
                       Line.CreateBound(new XYZ(20, 40, 0), new XYZ(20, 20, 0)), viewPlan);
                    tr.Commit();
    
                    //在新创建的面积边界中心点（30,30）处放置一个面积
                    tr.Start("Create area");
                    Area area = document.NewArea(viewPlan, new UV(30.0,30.0));
                    tr.Commit();
                }           
                return Result.Succeeded;
            }
        }
    }

执行结果：（注意：正常情况下，面积只能绘制在面积平面中。所以当前视图为面积平面时，该程序才能正常运行）

![20190326091807698.png][]

如果想为上述“面积”加上"面积标注"，在创建面积之后，事务提交之前，加上代码：

document.NewAreaTag(viewPlan,area, new UV(30.0,30.0));

执行结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70][]

[20190326091807698.png]: /images/20220228/671559a77fca44068de9f55fe014a74c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70]: /images/20220228/1cead266844e465dba158c2c7980151e.png