Revit api 创建楼梯图元

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Threading.Tasks;
  6 using Autodesk.Revit.Attributes;
  7 using Autodesk.Revit.DB;
  8 using Autodesk.Revit.UI;
  9 using Autodesk.Revit.DB.Architecture;
 10 
 11 
 12 namespace CreateStairs
 13 {
 14     [Transaction(TransactionMode.Manual)]
 15     public class Class1:IExternalCommand
 16     {
 17         public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
 18         {
 19             Document doc = commandData.Application.ActiveUIDocument.Document;
 20             Transaction trans = new Transaction(doc,"new level");
 21             trans.Start();
 22             Level blvl = Level.Create(doc, 0);
 23             Level tlvl = Level.Create(doc, 2);
 24             trans.Commit();
 25             CreateStairs(doc, blvl, tlvl);
 26             return Result.Succeeded;
 27         }
 28         private ElementId CreateStairs(Document document, Level levelBottom, Level levelTop)
 29         {
 30             ElementId newStairsId = null;
 31             using (StairsEditScope newStairsScope = new StairsEditScope(document, "New Stairs"))
 32             {
 33                 newStairsId = newStairsScope.Start(levelBottom.Id, levelTop.Id);
 34                 using (Transaction stairsTrans = new Transaction(document, "Add Runs and Landings to Stairs"))
 35                 {
 36                     stairsTrans.Start();
 37 
 38                     // Create a sketched run for the stairs
 39                     IList<Curve> bdryCurves = new List<Curve>();
 40                     IList<Curve> riserCurves = new List<Curve>();
 41                     IList<Curve> pathCurves = new List<Curve>();
 42                     XYZ pnt1 = new XYZ(0, 0, 0);
 43                     XYZ pnt2 = new XYZ(15, 0, 0);
 44                     XYZ pnt3 = new XYZ(0, 10, 0);
 45                     XYZ pnt4 = new XYZ(15, 10, 0);
 46                     // boundaries       
 47                     bdryCurves.Add(Line.CreateBound(pnt1, pnt2));
 48                     bdryCurves.Add(Line.CreateBound(pnt3, pnt4));
 49                     // riser curves
 50                     const int riserNum = 20;
 51                     for (int ii = 0; ii <= riserNum; ii++)
 52                     {
 53                         XYZ end0 = (pnt1 + pnt2) * ii / (double)riserNum;
 54                         XYZ end1 = (pnt3 + pnt4) * ii / (double)riserNum;
 55                         XYZ end2 = new XYZ(end1.X, 10, 0);
 56                         riserCurves.Add(Line.CreateBound(end0, end2));
 57                     }
 58 
 59                     //stairs path curves
 60                     XYZ pathEnd0 = (pnt1 + pnt3) / 2.0;
 61                     XYZ pathEnd1 = (pnt2 + pnt4) / 2.0;
 62                     pathCurves.Add(Line.CreateBound(pathEnd0, pathEnd1));
 63                     StairsRun newRun1 = StairsRun.CreateSketchedRun(document, newStairsId, levelBottom.Elevation, bdryCurves, riserCurves, pathCurves);
 64                     // Add a straight run
 65                     Line locationLine = Line.CreateBound(new XYZ(20, -5, newRun1.TopElevation), new XYZ(35, -5, newRun1.TopElevation));
 66                     StairsRun newRun2 = StairsRun.CreateStraightRun(document, newStairsId, locationLine, StairsRunJustification.Center);
 67                     newRun2.ActualRunWidth = 10;
 68                     // Add a landing between the runs
 69                     CurveLoop landingLoop = new CurveLoop();
 70                     XYZ p1 = new XYZ(15, 10, 0);
 71                     XYZ p2 = new XYZ(20, 10, 0);
 72                     XYZ p3 = new XYZ(20, -10, 0);
 73                     XYZ p4 = new XYZ(15, -10, 0);
 74                     Line curve_1 = Line.CreateBound(p1, p2);
 75                     Line curve_2 = Line.CreateBound(p2, p3);
 76                     Line curve_3 = Line.CreateBound(p3, p4);
 77                     Line curve_4 = Line.CreateBound(p4, p1);
 78                     landingLoop.Append(curve_1);
 79                     landingLoop.Append(curve_2);
 80                     landingLoop.Append(curve_3);
 81                     landingLoop.Append(curve_4);
 82                     StairsLanding newLanding = StairsLanding.CreateSketchedLanding(document, newStairsId, landingLoop, newRun1.TopElevation);
 83                     stairsTrans.Commit();
 84                 }
 85                 // A failure preprocessor is to handle possible failures during the edit mode commitment process.
 86                 newStairsScope.Commit(new FailuresPreprocessor());//new StairsFailurePreprocessor());
 87             }
 88             return newStairsId;
 89         }
 90 
 91     }
 92     public class FailuresPreprocessor : IFailuresPreprocessor
 93     {
 94         public FailureProcessingResult PreprocessFailures(FailuresAccessor failuresAccessor)
 95         {
 96             IList<FailureMessageAccessor> listFma = failuresAccessor.GetFailureMessages();
 97             if (listFma.Count == 0)
 98                 return FailureProcessingResult.Continue;
 99             foreach (FailureMessageAccessor fma in listFma)
100             {
101                 if (fma.GetSeverity() == FailureSeverity.Error)
102                 {
103                     if (fma.HasResolutions())
104                         failuresAccessor.ResolveFailure(fma);
105                 }
106                 if (fma.GetSeverity() == FailureSeverity.Warning)
107                 {
108                     failuresAccessor.DeleteWarning(fma);
109                 }
110             }
111             return FailureProcessingResult.ProceedWithCommit;
112         }
113     }
114 }