原文鏈接：https://blog.csdn.net/qq_39412924/article/details/83110866
當進行管道生成的時候，發現二次開發基本教程中僅有彎頭的示例，於是我補充上三通與四通的生成示例。
彎頭的生成最簡單，書中有教程，且彎頭的生成對於角度的要求較低。
using Autodesk.Revit.UI.Selection;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
[Transaction(TransactionMode.Manual)]
class NewElbow : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIApplication uiApp = commandData.Application;
Document doc = uiApp.ActiveUIDocument.Document;
Selection sel = uiApp.ActiveUIDocument.Selection;
//選取兩個管
var reference1 = sel.PickObject(ObjectType.Element, "請選擇第1個管");
MEPCurve duct1 = doc.GetElement(reference1) as MEPCurve;
var reference2 = sel.PickObject(ObjectType.Element, "請選擇第2個管");
MEPCurve duct2 = doc.GetElement(reference2) as MEPCurve;
//彎頭
ConnectTwoDuctsWithElbow(doc, duct1, duct2);
return Result.Succeeded;
}
/// <summary>
/// 連接管道
/// </summary>
/// <param name="doc"></param>
/// <param name="duct1"></param>
/// <param name="duct2"></param>
public static void ConnectTwoDuctsWithElbow(Document doc, MEPCurve duct1, MEPCurve duct2)
{
double minDistance = double.MaxValue;
Connector connector1, connector2;
connector1 = connector2 = null;
foreach (Connector con1 in duct1.ConnectorManager.Connectors)
{
foreach (Connector con2 in duct2.ConnectorManager.Connectors)
{
var dis = con1.Origin.DistanceTo(con2.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector1 = con1;
connector2 = con2;
}
}
}
if (connector1 != null && connector2 != null)
{
using (Transaction tran = new Transaction(doc))
{
tran.Start("1033067630");
var elbow = doc.Create.NewElbowFitting(connector1, connector2);
tran.Commit();
}
}
}
}
接下是三通，三通最需要注意的事角度！！角度！！角度！！，第二根管應該垂直於第一根管，不能超出1°！極爲嚴格！
還有主次順序問題。
[Transaction(TransactionMode.Manual)]
class NewTeeFitting : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIApplication uiApp = commandData.Application;
Document doc = uiApp.ActiveUIDocument.Document;
Selection sel = uiApp.ActiveUIDocument.Selection;
//選取兩個管道
var reference1 = sel.PickObject(ObjectType.Element, "請選擇第1個管");
MEPCurve duct1 = doc.GetElement(reference1) as MEPCurve;
var reference2 = sel.PickObject(ObjectType.Element, "請選擇第2個管");
MEPCurve duct2 = doc.GetElement(reference2) as MEPCurve;
Curve curve1 = (doc.GetElement(reference1).Location as LocationCurve).Curve;
Curve curve2 = (doc.GetElement(reference2).Location as LocationCurve).Curve;
var ductList = GetMainDuct(duct1, duct2);
MEPCurve MainDuct = ductList[0];//the main Pipe
MEPCurve LessDuct = ductList[1];// the minor Pipe
MEPCurve duct3 = null;//the main pipe
IntersectionResultArray intersectPoint = new IntersectionResultArray();
var x = curve1.Intersect(curve2, out intersectPoint);
if (x == SetComparisonResult.Overlap)
{
using (Transaction tran = new Transaction(doc))
{
tran.Start("1033067630");
var OrginPoint = intersectPoint.get_Item(0).XYZPoint;
var elementId = PlumbingUtils.BreakCurve(doc, MainDuct.Id, OrginPoint);
duct3 = doc.GetElement(elementId) as MEPCurve;
tran.Commit();
}
}
ConnectTwoDuctsWithElbow(doc, MainDuct, duct3, LessDuct);
return Result.Succeeded;
}
/// <summary>
/// 區分主要管道與次要管道
/// </summary>
/// <param name="duct1"></param>
/// <param name="duct2"></param>
/// <returns></returns>
public static List<MEPCurve> GetMainDuct(MEPCurve duct1, MEPCurve duct2)
{
List<MEPCurve> mEPCurves = new List<MEPCurve>();
Curve curve1 = (duct1.Location as LocationCurve).Curve;
Curve curve2 = (duct2.Location as LocationCurve).Curve;
List<double> disList = new List<double>();
double dis = double.MaxValue;
XYZ pointA1 = curve1.GetEndPoint(0);
XYZ pointA2 = curve1.GetEndPoint(1);
XYZ pointB1 = curve2.GetEndPoint(0);
XYZ pointB2 = curve2.GetEndPoint(1);
var distance1 = curve2.Distance(pointA1);
var distance2 = curve2.Distance(pointA2);
var distance3 = curve1.Distance(pointB1);
var distance4 = curve1.Distance(pointB2);
disList.Add(distance1);
disList.Add(distance2);
disList.Add(distance3);
disList.Add(distance4);
dis = disList.Min();
var x = disList.IndexOf(dis);
if (x < 2)
{
mEPCurves.Add(duct2);
mEPCurves.Add(duct1);
return mEPCurves;
}
else
{
mEPCurves.Add(duct1);
mEPCurves.Add(duct2);
return mEPCurves;
}
}
/// <summary>
/// 創建連接
/// </summary>
/// <param name="doc"></param>
/// <param name="duct1">主要管道1</param>
/// <param name="duct2">主要管道2</param>
/// <param name="duct3">次要管道</param>
public static void ConnectTwoDuctsWithElbow(Document doc, MEPCurve duct1, MEPCurve duct2, MEPCurve duct3)
{
double minDistance = double.MaxValue;
Connector connector1, connector2, connector3;
connector1 = connector2 = connector3 = null;
foreach (Connector con1 in duct1.ConnectorManager.Connectors)
{
foreach (Connector con2 in duct2.ConnectorManager.Connectors)
{
var dis = con1.Origin.DistanceTo(con2.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector1 = con1;
connector2 = con2;
}
}
}
minDistance = double.MaxValue;//重置
foreach (Connector con3 in duct3.ConnectorManager.Connectors)
{
var dis = con3.Origin.DistanceTo(connector1.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector3 = con3;
}
}
if (connector1 != null && connector2 != null && connector3 != null)
{
using (Transaction tran = new Transaction(doc))
{
tran.Start("xx");
var elbow = doc.Create.NewTeeFitting(connector1, connector2, connector3);
tran.Commit();
}
}
}
}
最後就是4通，依舊是角度問題要注意，且連接器內參數，第一個和第二個參數共線，第三個和第四個參數共線（即在同一根線上）
[Transaction(TransactionMode.Manual)]
class NewCross : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
MEPCurve duct3, duct4;
duct3 = duct4 = null;
UIApplication uiApp = commandData.Application;
Document doc = uiApp.ActiveUIDocument.Document;
Selection sel = uiApp.ActiveUIDocument.Selection;
//選取兩個風管
var reference1 = sel.PickObject(ObjectType.Element, "請選擇第1個風管");
MEPCurve duct1 = doc.GetElement(reference1) as MEPCurve;
var reference2 = sel.PickObject(ObjectType.Element, "請選擇第2個風管");
MEPCurve duct2 = doc.GetElement(reference2) as MEPCurve;
Curve curve1 = (doc.GetElement(reference1).Location as LocationCurve).Curve;
Curve curve2 = (doc.GetElement(reference2).Location as LocationCurve).Curve;
IntersectionResultArray intersectPoint = new IntersectionResultArray();
var x = curve1.Intersect(curve2, out intersectPoint);
if (x == SetComparisonResult.Overlap)
{
using (Transaction tran = new Transaction(doc))
{
tran.Start("x");
var OrginPoint = intersectPoint.get_Item(0).XYZPoint;
var elementId3 = PlumbingUtils.BreakCurve(doc, duct1.Id, OrginPoint);
duct3 = doc.GetElement(elementId3) as MEPCurve;//duct1 and duct3 in one line
var elementId4 = PlumbingUtils.BreakCurve(doc, duct2.Id, OrginPoint);
duct4 = doc.GetElement(elementId4) as MEPCurve;//duct2 and duct4 in one line
tran.Commit();
}
}
ConnectTwoDuctsWithElbow(doc, duct1, duct3, duct2, duct4);//四通
return Result.Succeeded;
}
/// <summary>
/// 創建連接,四通前2個共線，後2個共線
/// </summary>
/// <param name="doc"></param>
/// <param name="duct1"></param>
/// <param name="duct2"></param>
/// <param name="duct3"></param>
public static void ConnectTwoDuctsWithElbow(Document doc, MEPCurve duct1, MEPCurve duct2, MEPCurve duct3, MEPCurve duct4)
{
double minDistance = double.MaxValue;
Connector connector1, connector2, connector3, connector4;
connector1 = connector2 = connector3 = connector4 = null;
foreach (Connector con1 in duct1.ConnectorManager.Connectors)
{
foreach (Connector con2 in duct2.ConnectorManager.Connectors)
{
var dis = con1.Origin.DistanceTo(con2.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector1 = con1;
connector2 = con2;
}
}
}
minDistance = double.MaxValue;//重置
foreach (Connector con3 in duct3.ConnectorManager.Connectors)
{
var dis = con3.Origin.DistanceTo(connector1.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector3 = con3;
}
}
minDistance = double.MaxValue;//重置
foreach (Connector con4 in duct4.ConnectorManager.Connectors)
{
var dis = con4.Origin.DistanceTo(connector1.Origin);
if (dis < minDistance)
{
minDistance = dis;
connector4 = con4;
}
}
if (connector1 != null && connector2 != null && connector3 != null && connector4 != null)
{
using (Transaction tran = new Transaction(doc))
{
tran.Start("xx");
var elbow = doc.Create.NewCrossFitting(connector1, connector2, connector3, connector4);
tran.Commit();
}
}
}
}