start
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
public class cmd : IExternalCommand
{
/// <summary>
/// 取得风管两端连接器
/// </summary>
/// <param name="duct"></param>
/// <returns></returns>
private List<Connector> getConn(Duct duct)
{
List<Connector> listConn = new List<Connector>();
ConnectorSetIterator csi = duct.ConnectorManager.Connectors.ForwardIterator();
while (csi.MoveNext())
{
Connector conn = csi.Current as Connector;
if (ConnectorType.End == conn.ConnectorType)
{
listConn.Add(conn);
}
else if (ConnectorType.Curve == conn.ConnectorType)
{
//return conn;
}
}
return listConn;
}
public Result Execute(ExternalCommandData cmdData, ref string msg, ElementSet elements)
{
UIDocument uiDoc = cmdData.Application.ActiveUIDocument;
UIApplication uiApp = cmdData.Application;
Document doc = uiDoc.Document;
Selection sel = uiDoc.Selection; Transaction ts = new Transaction(doc, "http://revit.5d6d.com");
ts.Start();
try
{
Element elDuct0 = doc.GetElement(sel.PickObject(ObjectType.Element, "选择风管1:"));
Element elDuct1 = doc.GetElement(sel.PickObject(ObjectType.Element, "选择风管2:"));
Duct duct0 = elDuct0 as Duct;
Duct duct1 = elDuct1 as Duct;
List<Connector> listConn0 = getConn(duct0);
List<Connector> listConn1 = getConn(duct1);
Line line0 = Line.get_Bound(listConn0[].Origin, listConn0[].Origin);
Line line1 = Line.get_Bound(listConn1[].Origin, listConn1[].Origin);
double dDis = line1.Distance(line0.get_EndPoint());//直接间距
XYZ xyzVector = GetXYVector(line0, line1);
LocationCurve lc = elDuct1.Location as LocationCurve;
lc.Move(dDis * xyzVector);
ts.Commit();
}
catch (Autodesk.Revit.Exceptions.OperationCanceledException)
{
ts.RollBack();
return Result.Cancelled;
}
catch (Exception ex)
{
ts.RollBack();
} return Result.Succeeded;
} /// <summary>
/// 取得平行线的单位向量
/// </summary>
/// <param name="line0"></param>
/// <param name="line1"></param>
/// <returns></returns>
public XYZ GetXYVector(Line line0, Line line1)
{
//基准
XYZ startPoint0 = line0.get_EndPoint();
XYZ endPoint0 = line0.get_EndPoint();
//参照
XYZ startPoint1 = line1.get_EndPoint();
XYZ endPoint1 = line1.get_EndPoint();
//
XYZ resultVector = new XYZ(, , ); XYZ zStart = new XYZ(startPoint1.X, startPoint1.Y, );
XYZ zEnd = new XYZ(endPoint1.X, endPoint1.Y, ); Line line = Line.get_Bound(new XYZ(startPoint0.X, startPoint0.Y, ), new XYZ(endPoint0.X, endPoint0.Y, ));
line.MakeUnbound(); //取得一条直线所在直线相垂直的直线
XYZ tPoint = zStart - zEnd;
XYZ zVector = new XYZ(, , );
XYZ nPoint = tPoint.CrossProduct(zVector).Normalize() + zStart;
Line lineN = Line.get_Bound(zStart, nPoint);
lineN.MakeUnbound(); //与另外一条风管的交点
IntersectionResultArray intersectionR = new IntersectionResultArray();
SetComparisonResult comparisonR; comparisonR = line.Intersect(lineN, out intersectionR); if (SetComparisonResult.Disjoint != comparisonR)
{
if (!intersectionR.IsEmpty)
{
resultVector = intersectionR.get_Item().XYZPoint;
}
} if (!zStart.IsAlmostEqualTo(resultVector))
{
resultVector = (resultVector - zStart).Normalize();
} return resultVector;
}
}
url:http://greatverve.cnblogs.com/p/revit-api-duct-alignment.html