Revit API根据链接文件开洞

开洞信息数据：

<?xml version="1.0" encoding="utf-8"?>
<Openings>
  <Opening WallId="618644">
    <PT1 X="-46.4673223917839" Y="25.9434404529416" Z="9.8753280839895" />
    <PT2 X="-46.4673223917839" Y="24.2374037075347" Z="8.16929133858268" />
  </Opening>
  <Opening WallId="618699">
    <PT1 X="28.3358272145153" Y="24.2374037075345" Z="9.8753280839895" />
    <PT2 X="28.3358272145153" Y="25.9434404529413" Z="8.16929133858268" />
  </Opening>
  <Opening WallId="618722">
    <PT1 X="-10.7125018356066" Y="57.0806634229704" Z="9.8753280839895" />
    <PT2 X="-12.4185385810134" Y="57.0806634229704" Z="8.16929133858268" />
  </Opening>
  <Opening WallId="618662">
    <PT1 X="-20.8620650191645" Y="-1.31828670826329" Z="9.8753280839895" />
    <PT2 X="-19.1560282737577" Y="-1.31828670826329" Z="8.16929133858268" />
  </Opening>
</Openings>

start

//根据导出开洞信息开洞
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
public class cmdOpening : IExternalCommand
{
    public Result Execute(ExternalCommandData cmdData, ref string msg, ElementSet elements)
    {
        UIDocument uiDoc = cmdData.Application.ActiveUIDocument;
        Document doc = uiDoc.Document;
        Selection sel = uiDoc.Selection;

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

        string strPath = @"C:\Users\HongYe\Desktop\OpeningInfo.xml";
        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.Load(strPath);

        foreach (XmlNode node in xmlDoc.DocumentElement.ChildNodes)
        {
            //;
            Wall wall = doc.get_Element(new ElementId(Convert.ToInt32(node.Attributes["WallId"].Value))) as Wall;
            XmlNode nodePt1 = node.SelectSingleNode("PT1");
            XYZ pt1 = new XYZ(double.Parse(nodePt1.Attributes["X"].Value), double.Parse(nodePt1.Attributes["Y"].Value), double.Parse(nodePt1.Attributes["Z"].Value));
            XmlNode nodePt2 = node.SelectSingleNode("PT2");
            XYZ pt2 = new XYZ(double.Parse(nodePt2.Attributes["X"].Value), double.Parse(nodePt2.Attributes["Y"].Value), double.Parse(nodePt2.Attributes["Z"].Value));
            doc.Create.NewOpening(wall, pt1, pt2);
        }

        ts.Commit();

        return Result.Succeeded;
    }
}
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
//导出开洞信息
public class cmd : IExternalCommand
{
    /// <summary>
    /// 找到链接文档中与风管相交的墙
    /// </summary>
    /// <param name="doc"></param>
    /// <param name="duct"></param>
    /// <returns></returns>
    public static 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);
        //
        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;
    }
    public Result Execute(ExternalCommandData cmdData, ref string msg, ElementSet elements)
    {
        UIDocument uiDoc = cmdData.Application.ActiveUIDocument;
        UIApplication uiApp = cmdData.Application;
        Document doc = uiDoc.Document;
        Selection selection = uiDoc.Selection;


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

            string strPath = @"C:\Users\HongYe\Desktop\OpeningInfo.xml";
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(strPath);

            List<string> listPath = GetLinkFilePaths(doc);
            Document docLink = uiApp.Application.OpenDocumentFile(listPath[0]);
            //
            FilteredElementCollector collIns = new FilteredElementCollector(doc);//
            collIns.OfClass(typeof(Instance)).OfCategory(BuiltInCategory.OST_RvtLinks);//RevitLinkType
            Transform transForm = null;
            foreach (Element elDoc in collIns)
            {
                Instance ins = elDoc as Instance;
                if (ins != null)
                {
                    transForm = ins.GetTransform();
                }
            }
            //风管
            FilteredElementCollector collDuct = new FilteredElementCollector(doc);
            collDuct.OfClass(typeof(Duct)).OfCategory(BuiltInCategory.OST_DuctCurves);
            foreach (Element elDuct in collDuct)
            {
                Duct duct = elDuct as Duct;
                List<Wall> listWall = FindDuctWall(docLink, duct);//找到链接文档中与风管相交的墙
                foreach (Wall wall in listWall)
                {
                    //求面和线的交点
                    Face face = FindWallFace(wall);
                    Curve curve = FindDuctCurve(duct);
                    XYZ xyz = FindFaceCurve(face, curve);
                    //墙线的向量
                    XYZ wallVector = FindWallVector(wall);

                    //找到风管的宽和高
                    double dWidth = GetDuctWidth(duct);
                    double dHeigh = GetDuctHeight(duct);

                    int iUp = 100;
                    int iDown = 100;
                    int iLeft = 100;
                    int iRight = 100;
                    //左上角
                    XYZ pt1 = xyz + new XYZ(0, 0, 1) * (dHeigh / 2 + iUp) / 304.8;
                    pt1 = pt1 - wallVector.Normalize() * (dWidth / 2 + iLeft) / 304.8;
                    pt1 = pt1 - transForm.Origin;
                    //右下角
                    XYZ pt2 = xyz + new XYZ(0, 0, -1) * (dHeigh / 2 + iDown) / 304.8;
                    pt2 = pt2 + wallVector.Normalize() * (dWidth / 2 + iRight) / 304.8;
                    pt2 = pt2 - transForm.Origin;
                    //开洞
                    //doc.Create.NewOpening(wall, pt1, pt2);
                    //wall.Id.IntegerValue.ToString();
                    //pt1.X;
                    XmlElement xmlEl = xmlDoc.CreateElement("Opening");
                    xmlEl.SetAttribute("WallId", wall.Id.IntegerValue.ToString());
                    XmlElement elPt1 = xmlDoc.CreateElement("PT1");
                    elPt1.SetAttribute("X", pt1.X.ToString());
                    elPt1.SetAttribute("Y", pt1.Y.ToString());
                    elPt1.SetAttribute("Z", pt1.Z.ToString());
                    xmlEl.AppendChild(elPt1);
                    XmlElement elPt2 = xmlDoc.CreateElement("PT2");
                    elPt2.SetAttribute("X", pt2.X.ToString());
                    elPt2.SetAttribute("Y", pt2.Y.ToString());
                    elPt2.SetAttribute("Z", pt2.Z.ToString());
                    xmlEl.AppendChild(elPt2);
                    xmlDoc.DocumentElement.AppendChild(xmlEl);
                }
            }

            ts.Commit();
            xmlDoc.Save(strPath);
        }
        catch (Exception ex)
        {
            WinFormTools.MsgBox(ex.ToString());
        }

        return Result.Succeeded;
    }
    //找到风管宽度
    public static double GetDuctWidth(Duct duct)
    {
        double dWidth = 0;
        foreach (Parameter p in duct.Parameters)
        {
            if (p.Definition.Name == "宽度")
            {
                dWidth = double.Parse(p.AsValueString());
                break;
            }
        }
        return dWidth;
    }
    //找到风管高度
    public static double GetDuctHeight(Duct duct)
    {
        double dHeigh = 0;
        foreach (Parameter p in duct.Parameters)
        {
            if (p.Definition.Name == "高度")
            {
                dHeigh = double.Parse(p.AsValueString());
                break;
            }
        }
        return dHeigh;
    }
    /// <summary>
    /// 找到墙线的向量
    /// </summary>
    /// <param name="wall"></param>
    /// <returns></returns>
    public static XYZ FindWallVector(Wall wall)
    {
        LocationCurve lCurve = wall.Location as LocationCurve;
        XYZ xyz = lCurve.Curve.get_EndPoint(1) - lCurve.Curve.get_EndPoint(0);
        return xyz;
    }
    /// <summary>
    /// 求线和面的交点
    /// </summary>
    /// <param name="face"></param>
    /// <param name="curve"></param>
    /// <returns></returns>
    public static XYZ FindFaceCurve(Face face, Curve curve)
    {
        //求交点
        IntersectionResultArray intersectionR = new IntersectionResultArray();//交点集合
        SetComparisonResult comparisonR;//Comparison比较
        comparisonR = face.Intersect(curve, out intersectionR);
        XYZ intersectionResult = null;//交点坐标
        if (SetComparisonResult.Disjoint != comparisonR)//Disjoint不交
        {
            if (!intersectionR.IsEmpty)
            {
                intersectionResult = intersectionR.get_Item(0).XYZPoint;
            }
        }
        return intersectionResult;
    }
    /// <summary>
    /// 找到风管对应的曲线
    /// </summary>
    /// <param name="duct"></param>
    /// <returns></returns>
    public Curve FindDuctCurve(Duct duct)
    {
        //得到风管曲线
        IList<XYZ> list = new List<XYZ>();
        ConnectorSetIterator csi = duct.ConnectorManager.Connectors.ForwardIterator();
        while (csi.MoveNext())
        {
            Connector conn = csi.Current as Connector;
            list.Add(conn.Origin);
        }
        Curve curve = Line.get_Bound(list.ElementAt(0), list.ElementAt(1)) as Curve;
        curve.MakeUnbound();
        return curve;
    }
    /// <summary>
    /// 找到墙的正面
    /// </summary>
    /// <param name="wall"></param>
    /// <returns></returns>
    public Face FindWallFace(Wall wall)
    {
        Face normalFace = null;
        //
        Options opt = new Options();
        opt.ComputeReferences = true;
        opt.DetailLevel = Autodesk.Revit.DB.DetailLevels.Medium;

        //
        GeometryElement e = wall.get_Geometry(opt);
        /*下版改进
        IEnumerator<GeometryObject> enm = e.GetEnumerator();
        while (enm.MoveNext())
        {
            Solid solid = enm.Current as Solid;
        }*/
        foreach (GeometryObject obj in e.Objects)//待改2013
        {
            Solid solid = obj as Solid;
            if (solid != null && solid.Faces.Size > 0)
            {
                foreach (Face face in solid.Faces)
                {
                    PlanarFace pf = face as PlanarFace;
                    if (pf != null)
                    {
                        if (pf.Normal.AngleTo(wall.Orientation) < 0.01)//数值在0到PI之间
                        {
                            normalFace = face;
                        }
                    }
                }
            }
        }
        return normalFace;
    }
    /// <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>
    private string GetPath(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-opening-info.html