Revit API找到风管穿过的墙(当前文档和链接文档)

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[Transaction(TransactionMode.Manual)]

[Regeneration(RegenerationOption.Manual)]

public class cmdDuctWall : IExternalCommand

{

    public Result Execute(ExternalCommandData cmdData, ref string msg, ElementSet elements)

    {

        UIApplication uiApp = cmdData.Application;

        UIDocument uiDoc = cmdData.Application.ActiveUIDocument;

        Document doc = uiDoc.Document;

        Selection sel = uiDoc.Selection;



        Transaction ts = new Transaction(uiDoc.Document, "delete");

        ts.Start();

        //加载链接文件

        FilteredElementCollector collector = new FilteredElementCollector(doc);//

        collector.OfClass(typeof(Instance)).OfCategory(BuiltInCategory.OST_RvtLinks);//RevitLinkType

        List<string> listPath = GetLinkFilePaths(doc);



        Duct duct = doc.GetElement(sel.PickObject(ObjectType.Element, "duct")) as Duct;

        foreach (Element elDoc in collector)

        {

            Instance ins = elDoc as Instance;



            if (ins != null)

            {

                Transform transForm = ins.GetTransform();

                string strKey = elDoc.Name.Substring(0, elDoc.Name.IndexOf(".rvt"));//找到链接文件名称

                string strPath = GetLinkPath(listPath, strKey);

                Document docLink = uiApp.Application.OpenDocumentFile(strPath);



                List<Wall> listWall = FindDuctWall(doc, duct, docLink, ins.GetTransform().Origin);

                TaskDialog.Show("count", listWall.Count.ToString());

                List<Wall> listWall1 = FindDuctWall(doc, duct);

                TaskDialog.Show("count", listWall1.Count.ToString());

            }

        }



        ts.Commit();



        return Result.Succeeded;

    }

    /// <summary>

    /// 找到当前文档穿过的墙

    /// </summary>

    /// <param name="doc"></param>

    /// <param name="duct"></param>

    /// <returns></returns>

    public List<Wall> FindDuctWall(Document doc, Duct duct)

    {

        List<Wall> listWall = new List<Wall>();

        //找到outLine

        BoundingBoxXYZ bb = duct.get_BoundingBox(doc.ActiveView);

        Outline outline = new Outline(bb.Min, bb.Max);

        //WinFormTools.MsgBox(bb.Min + "|" + bb.Max);

        //

        FilteredElementCollector collector = new FilteredElementCollector(doc);

        BoundingBoxIntersectsFilter invertFilter = new BoundingBoxIntersectsFilter(outline, false);

        IList<Element> noIntersectWalls = collector.OfClass(typeof(Wall)).WherePasses(invertFilter).ToElements();

        foreach (Element el in noIntersectWalls)

        {

            Wall wall = el as Wall;

            if (wall != null)

                listWall.Add(wall);

        }

        return listWall;

    }

    /// <summary>

    /// 找到穿过链接文件的墙

    /// </summary>

    /// <param name="doc"></param>

    /// <param name="duct"></param>

    /// <param name="docLink"></param>

    /// <param name="xyz">依稀量</param>

    /// <returns></returns>

    public List<Wall> FindDuctWall(Document doc, Duct duct, Document docLink, XYZ xyz)

    {

        List<Wall> listWall = new List<Wall>();



        //找到outLine

        BoundingBoxXYZ bb = duct.get_BoundingBox(doc.ActiveView);

        Outline outline = new Outline(bb.Min - xyz, bb.Max - xyz);

        //

        FilteredElementCollector collector = new FilteredElementCollector(docLink);

        BoundingBoxIntersectsFilter invertFilter = new BoundingBoxIntersectsFilter(outline, false);

        IList<Element> noIntersectWalls = collector.OfClass(typeof(Wall)).WherePasses(invertFilter).ToElements();

        foreach (Element el in noIntersectWalls)

        {

            Wall wall = el as Wall;

            if (wall != null)

                listWall.Add(wall);

        }

        return listWall;

    }

    /// <summary>

    /// 取得链接文件路径

    /// </summary>

    /// <param name="doc"></param>

    /// <returns></returns>

    public List<string> GetLinkFilePaths(Document doc)

    {

        List<string> listPath = new List<string>();

        foreach (ElementId elId in ExternalFileUtils.GetAllExternalFileReferences(doc))

        {

            if (doc.get_Element(elId).IsExternalFileReference())

            {

                ExternalFileReference fileRef = doc.get_Element(elId).GetExternalFileReference();

                if (ExternalFileReferenceType.RevitLink == fileRef.ExternalFileReferenceType)

                    listPath.Add(ModelPathUtils.ConvertModelPathToUserVisiblePath(fileRef.GetAbsolutePath()));

            }

        }

        return listPath;

    }

    /// <summary>

    /// 根据链接文件名称找到对应链接路径，模糊匹配，待改进

    /// </summary>

    /// <param name="listPath"></param>

    /// <param name="strKey"></param>

    /// <returns></returns>

    public string GetLinkPath(List<string> listPath, string strKey)

    {

        foreach (string strPath in listPath)

        {

            if (strPath.Contains(strKey))

                return strPath;

        }

        return "";

    }

}

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