Revit API遍历系统族布置喷头

最新推荐文章于 2021-11-26 14:39:23 发布

weixin_34356138

最新推荐文章于 2021-11-26 14:39:23 发布

阅读量257

点赞数

文章标签： ui

本文介绍如何在Revit中通过编程方式从系统族中筛选并布置喷头族实例，包括使用FilteredElementCollector进行元素过滤及利用NewFamilyInstance方法进行族实例的创建。

系统族可以通过内参遍历，遍历出来是个FamilySymbol
喷头属于系统族，但不能通过NewDuct();类似这样的方法布置。
必须使用

NewFamilyInstance()

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using WinForm = System.Windows.Forms;

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

using Autodesk.Revit.DB.Mechanical;
using Autodesk.Revit.UI.Selection;
using Autodesk.Revit.ApplicationServices;

using Autodesk.Revit.DB.Structure;
using Autodesk.Revit.DB.ExtensibleStorage;
using Autodesk.Revit.DB.Plumbing;
using Autodesk.Revit.DB.Architecture;

using System.Xml;

namespace RevitCodes
{

    [TransactionAttribute(Autodesk.Revit.Attributes.TransactionMode.Manual)]
     public class cmdSprinklers : IExternalCommand
    {
         public Result Execute(ExternalCommandData commandData, ref string messages, ElementSet elements)
        {
            UIApplication uiApp = commandData.Application;
            Document doc = uiApp.ActiveUIDocument.Document;
            Selection sel = uiApp.ActiveUIDocument.Selection;

            Transaction ts = new Transaction(doc, " http://revit.5d6d.com " );
            ts.Start();

             // 从系统族中过滤出喷头，是作为一个FamilySymbol存在的
            FilteredElementCollector collector = new FilteredElementCollector(doc);
             // 此法可以只过滤系统类型
             // collector.OfClass(typeof(FamilySymbol)).OfCategory(BuiltInCategory.OST_Sprinklers);
            collector.OfCategory(BuiltInCategory.OST_Sprinklers);
            FamilyInstance fi = null ; // 如果已经布置了，就是族实例
             int iFi = 0 ;
            FamilySymbol symbol = null ; // 系统族是族符号
             int iFs = 0 ;
             foreach (Element el in collector.ToElements())
            {
                fi = el as FamilyInstance;
                 if (fi != null )
                    iFi += 1 ;
                symbol = el as FamilySymbol;
                 if (symbol != null )
                    iFs += 1 ;
            }
            TaskDialog.Show( " count " , iFi + " , " + iFs);
             if (fi != null )
                doc.Create.NewFamilyInstance( new XYZ( 10 , 10 , 10 ), fi.Symbol, StructuralType.Beam);
             if (symbol != null )
                doc.Create.NewFamilyInstance( new XYZ( 10 , 10 , 10 ), symbol, StructuralType.Beam);

            ts.Commit();

             return Result.Succeeded;
        }
        XYZ PointOnFace(PlanarFace face)
        {
            XYZ p = new XYZ( 0 , 0 , 0 );
            Mesh mesh = face.Triangulate();

             for ( int i = 0 ; i < mesh.NumTriangles; ++ i)
            {
                MeshTriangle triangle = mesh.get_Triangle(i);
                p += triangle.get_Vertex( 0 );
                p += triangle.get_Vertex( 1 );
                p += triangle.get_Vertex( 2 );
                p *= 0.3333333333333333 ;
                 break ;
            }
             return p;
        }
    }
}

url: http://greatverve.cnblogs.com/p/api-Sprinklers.html