revit api楼梯创建

 

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Architecture;
using Autodesk.Revit.UI;
using System;
using System.Collections.Generic;namespace StairsCreation
{[Transaction(TransactionMode.Manual)]public class CreateStairsCommand : IExternalCommand{public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements){UIApplication uiApp = commandData.Application;UIDocument uiDoc = uiApp.ActiveUIDocument;Document doc = uiDoc.Document;try{// 获取或创建标高0和4000Level levelBottom = GetOrCreateLevel(doc, 0, "Level 0");Level levelTop = GetOrCreateLevel(doc, 4000, "Level 4000");if (levelBottom == null || levelTop == null){TaskDialog.Show("错误", "创建标高时发生错误。");return Result.Failed;}// 创建楼梯ElementId stairsId = CreateStairs(doc, levelBottom, levelTop);if (stairsId != null){TaskDialog.Show("成功", "楼梯已成功创建！");return Result.Succeeded;}else{TaskDialog.Show("失败", "创建楼梯时发生错误。");return Result.Failed;}}catch (Exception ex){message = ex.Message;return Result.Failed;}}private ElementId CreateStairs(Document document, Level levelBottom, Level levelTop){ElementId newStairsId = null;using (StairsEditScope newStairsScope = new StairsEditScope(document, "New Stairs")){newStairsId = newStairsScope.Start(levelBottom.Id, levelTop.Id);using (Transaction stairsTrans = new Transaction(document, "Add Runs and Landings to Stairs")){stairsTrans.Start();// 创建楼梯草图梯段IList<Curve> bdryCurves = new List<Curve>();IList<Curve> riserCurves = new List<Curve>();IList<Curve> pathCurves = new List<Curve>();XYZ pnt1 = new XYZ(0, 0, 0);XYZ pnt2 = new XYZ(15, 0, 0);XYZ pnt3 = new XYZ(0, 10, 0);XYZ pnt4 = new XYZ(15, 10, 0);// 边界曲线bdryCurves.Add(Line.CreateBound(pnt1, pnt2));bdryCurves.Add(Line.CreateBound(pnt3, pnt4));// 梯级曲线// 计算实际需要的踏步数量（考虑总高度4000）double totalHeight = levelTop.Elevation - levelBottom.Elevation;double riserHeight = 200; // 假设踏步高度为200int riserNum = (int)Math.Round(totalHeight / riserHeight);riserNum = Math.Max(1, riserNum); // 确保至少有一个踏步for (int ii = 0; ii <= riserNum; ii++){XYZ end0 = (pnt1 + pnt2) * ii / (double)riserNum;XYZ end1 = (pnt3 + pnt4) * ii / (double)riserNum;XYZ end2 = new XYZ(end1.X, 10, 0);riserCurves.Add(Line.CreateBound(end0, end2));}// 楼梯路径曲线XYZ pathEnd0 = (pnt1 + pnt3) / 2.0;XYZ pathEnd1 = (pnt2 + pnt4) / 2.0;pathCurves.Add(Line.CreateBound(pathEnd0, pathEnd1));StairsRun newRun1 = StairsRun.CreateSketchedRun(document, newStairsId,levelBottom.Elevation, bdryCurves, riserCurves, pathCurves);// 添加直梯段Line locationLine = Line.CreateBound(new XYZ(20, -5, newRun1.TopElevation),new XYZ(35, -5, newRun1.TopElevation));StairsRun newRun2 = StairsRun.CreateStraightRun(document, newStairsId, locationLine, StairsRunJustification.Center);newRun2.ActualRunWidth = 10;// 在梯段之间添加平台CurveLoop landingLoop = new CurveLoop();XYZ p1 = new XYZ(15, 10, 0);XYZ p2 = new XYZ(20, 10, 0);XYZ p3 = new XYZ(20, -10, 0);XYZ p4 = new XYZ(15, -10, 0);landingLoop.Append(Line.CreateBound(p1, p2));landingLoop.Append(Line.CreateBound(p2, p3));landingLoop.Append(Line.CreateBound(p3, p4));landingLoop.Append(Line.CreateBound(p4, p1));StairsLanding newLanding = StairsLanding.CreateSketchedLanding(document, newStairsId, landingLoop, newRun1.TopElevation);stairsTrans.Commit();}// 提交楼梯编辑范围，处理可能的失败newStairsScope.Commit(new StairsFailurePreprocessor());}return newStairsId;}// 根据标高获取或创建Level元素private Level GetOrCreateLevel(Document doc, double elevation, string levelName){// 先尝试查找现有标高FilteredElementCollector collector = new FilteredElementCollector(doc);collector.OfClass(typeof(Level));foreach (Level level in collector){// 考虑浮点精度问题，使用容差比较if (Math.Abs(level.Elevation - elevation) < 0.001){return level;}}// 如果没有找到，创建新标高using (Transaction trans = new Transaction(doc, "Create Level")){trans.Start();Level newLevel = Level.Create(doc, elevation);newLevel.Name = levelName;trans.Commit();return newLevel;}}}// 楼梯创建失败处理器public class StairsFailurePreprocessor : IFailuresPreprocessor{public FailureProcessingResult PreprocessFailures(FailuresAccessor failuresAccessor){IList<FailureMessageAccessor> failureMessages = failuresAccessor.GetFailureMessages();foreach (FailureMessageAccessor fma in failureMessages){// 接受所有警告if (fma.GetSeverity() == FailureSeverity.Warning){failuresAccessor.DeleteWarning(fma);}else // 对于错误，尝试修复或取消{return FailureProcessingResult.ProceedWithRollBack;}}return FailureProcessingResult.Continue;}}
}