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Civil 3D 2025 API迎来重大升级,新增功能覆盖铁路设计、纵断面优化、曲面工作流等领域,并强化与Dynamo的集成,以下是核心更新:
💡 开发建议:优先使用.NET API(C#),其功能覆盖更全面,且支持与AutoCAD API无缝混合编程。
Autodesk.Civil3D.ApplicationServices
Autodesk.Civil3D.DatabaseServices
Autodesk.AutoCAD.Runtime
Autodesk.Civil3D
包,或手动引用C:\Program Files\Autodesk\Civil 3D 2025
下的DLL。using Autodesk.Civil.ApplicationServices; using Autodesk.Civil.DatabaseServices; using Autodesk.AutoCAD.Runtime; public class HelloCivil3D { [CommandMethod("HelloC3D")] public void ShowMessage() { CivilDocument doc = CivilDocument.GetCivilDocument(HostApplicationServices.WorkingDatabase); doc.Editor.WriteMessage("\n🎉 Civil 3D 2025 API开发成功!"); } }
Surface newSurface = new Surface(); newSurface.Name = "NewTerrain"; using (Transaction trans = db.TransactionManager.StartTransaction()) { SurfaceCollection surfaces = doc.GetSurfaceCollection(); surfaces.Add(newSurface, trans); trans.Commit(); }
PipeNetwork pipeNetwork = new PipeNetwork(); pipeNetwork.Name = "SewerSystem"; using (Transaction trans = db.TransactionManager.StartTransaction()) { PipeNetworkCollection networks = doc.GetPipeNetworkCollection(); networks.Add(pipeNetwork, trans); trans.Commit(); }
[CommandMethod("CreatePumpStation")] public void CreateStation() { PromptPointResult result = ed.GetPoint("\n请输入泵站位置:"); if (result.Status == PromptStatus.OK) { Point3d location = result.Value; // 后续创建对象逻辑... } }
public class AlignmentHandler { public static void Initialize() { CivilDocument doc = CivilDocument.GetCivilDocument(Database.Current); doc.AlignmentAdded += OnAlignmentCreated; } private static void OnAlignmentCreated(object sender, CivilObjectEventArgs e) { Alignment align = e.CivilObject as Alignment; ed.WriteMessage($"\n🔔 新建对齐线:{align.Name}"); } }
场景:批量生成轨道符号并插入指定图层。
// 创建图层 LayerTable lt = trans.GetObject(db.LayerTableId, OpenMode.ForRead) as LayerTable; if (!lt.Has("RailLayer")) { LayerTableRecord ltr = new LayerTableRecord(); ltr.Name = "RailLayer"; ltr.Color = Color.FromRgb(255, 0, 0); // 红色 lt.UpgradeOpen(); lt.Add(ltr); trans.AddNewlyCreatedDBObject(ltr, true); } // 插入轨道符号 BlockReference block = new BlockReference(location, blockId); block.Layer = "RailLayer"; btr.AppendEntity(block); trans.AddNewlyCreatedDBObject(block, true);
// 导出点数据到CSV using (StreamWriter sw = new StreamWriter("points.csv")) { foreach (CivilPoint p in civilPoints) { sw.WriteLine($"{p.X},{p.Y},{p.Z}"); } }
原因:未正确加载accoremgd.dll
。
解决方案:在命令行添加/loadmodule "C:\Program Files\Autodesk\AutoCAD 2025\accoremgd.dll"
。
// 通过AutoCAD API获取对象 Document doc = Application.DocumentManager.MdiActiveDocument; Editor ed = doc.Editor; PromptEntityResult res = ed.GetEntity("\n选择对象:"); if (res.Status == PromptStatus.OK) { ObjectId id = res.ObjectId; // 转换为Civil 3D对象 CivilObject civilObj = doc.GetCivilObject(id); }
🎯 总结:通过Civil 3D 2025 API,开发者可高效实现地形建模、管道设计、数据交互等场景的自动化,结合.NET框架与最新API特性,让二次开发更简单、更强大!
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