参考方法
public class Class1 : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
Document revitDoc = commandData.Application.ActiveUIDocument.Document; //取得文档
Application revitApp = commandData.Application.Application; //取得应用程序
UIDocument uiDoc = commandData.Application.ActiveUIDocument;
Selection sel = uiDoc.Selection;
//Reference re = sel.PickObject(ObjectType.Element);
Reference re = sel.PickObject(ObjectType.PointOnElement);
ImportInstance dwg = revitDoc.GetElement(re) as ImportInstance;
var geoObj = (dwg as Element).GetGeometryObjectFromReference(re);
TaskDialog.Show("revit", geoObj.GetType().ToString());
//Transform transf = null;
XYZ p1 = null;
XYZ p2 = null;
if (geoObj is Line)
{
Line l = geoObj as Line;
p1 = l.GetEndPoint(0);
p2 = l.GetEndPoint(1);
TaskDialog.Show("revit", p2.X.ToString());
}
return Result.Succeeded;
}
}
}
如何使用Teigha获取CAD中文字信息
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using CreatBridgeForRevit2018.ElementsSelect;
using CreatBridgeForRevit2018.Filter;
using Teigha.Runtime;
using Teigha.DatabaseServices;
using System.IO;
using System.Collections;
using Teigha.Geometry;
namespace CreatBridgeForRevit2018.ReadCAD
{
class ReadCADUtils
{
/// <summary>
/// 取得链接cad的路径
/// </summary>
/// <param name="cadLinkTypeID"></param>
/// <param name="revitDoc"></param>
/// <returns></returns>
public string GetCADPath(ElementId cadLinkTypeID,Document revitDoc)
{
CADLinkType cadLinkType = revitDoc.GetElement(cadLinkTypeID) as CADLinkType;
return ModelPathUtils.ConvertModelPathToUserVisiblePath(cadLinkType.GetExternalFileReference().GetAbsolutePath());
}
/// <summary>
/// 取得CAD的文字信息
/// </summary>
/// <param name="dwgFile"></param>
/// <returns></returns>
public List<CADTextModel> GetCADTextInfo(string dwgFile)
{
List<CADTextModel> listCADModels = new List<CADTextModel>();
using (new Services())
{
using (Database database = new Database(false, false))
{
database.ReadDwgFile(dwgFile, FileShare.Read, true, "");
using (var trans = database.TransactionManager.StartTransaction())
{
using (BlockTable table = (BlockTable)database.BlockTableId.GetObject(OpenMode.ForRead))
{
using (SymbolTableEnumerator enumerator = table.GetEnumerator())
{
StringBuilder sb = new StringBuilder();
while (enumerator.MoveNext())
{
using (BlockTableRecord record = (BlockTableRecord)enumerator.Current.GetObject(OpenMode.ForRead))
{
foreach (ObjectId id in record)
{
Entity entity = (Entity)id.GetObject(OpenMode.ForRead, false, false);
CADTextModel model = new CADTextModel();
switch (entity.GetRXClass().Name)
{
case "AcDbText":
Teigha.DatabaseServices.DBText text = (Teigha.DatabaseServices.DBText)entity;
model.Location = ConverCADPointToRevitPoint(text.Position);
model.Text = text.TextString;
model.Angel = text.Rotation;
model.Layer = text.Layer;
listCADModels.Add(model);
break;
case "AcDbMText":
Teigha.DatabaseServices.MText mText = (Teigha.DatabaseServices.MText)entity;
model.Location = ConverCADPointToRevitPoint(mText.Location);
model.Text = mText.Text;
model.Angel = mText.Rotation;
model.Layer = mText.Layer;
listCADModels.Add(model);
break;
}
}
}
}
}
}
}
}
}
return listCADModels;
}
/// <summary>
/// 取得cad的图层名称
/// </summary>
/// <param name="dwgFile"></param>
/// <returns></returns>
public IList<string> GetLayerName(string dwgFile)
{
IList<string> cadLayerNames = new List<string>();
using (new Services())
{
using (Database database = new Database(false, false))
{
database.ReadDwgFile(dwgFile, FileShare.Read, true, "");
using (var trans = database.TransactionManager.StartTransaction())
{
using (LayerTable lt = (LayerTable)trans.GetObject(database.LayerTableId, OpenMode.ForRead))
{
foreach (ObjectId id in lt)
{
LayerTableRecord ltr = (LayerTableRecord)trans.GetObject(id, OpenMode.ForRead);
cadLayerNames.Add(ltr.Name);
}
}
trans.Commit();
}
}
}
return cadLayerNames;
}
/// <summary>
/// 取得CAD里的线，包括直线、多段线、圆曲线
/// </summary>
/// <param name="dwgFile"></param>
/// <returns></returns>
public List<CADGeometryModel> GetCADCurves(string dwgFile)
{
List<CADGeometryModel> listCADModels = new List<CADGeometryModel>();
using (new Services())
{
using (Database database = new Database(false, false))
{
database.ReadDwgFile(dwgFile, FileShare.Read, true, "");
using (var trans = database.TransactionManager.StartTransaction())
{
using (BlockTable table = (BlockTable)database.BlockTableId.GetObject(OpenMode.ForRead))
{
using (SymbolTableEnumerator enumerator = table.GetEnumerator())
{
StringBuilder sb = new StringBuilder();
while (enumerator.MoveNext())
{
using (BlockTableRecord record = (BlockTableRecord)enumerator.Current.GetObject(OpenMode.ForRead))
{
foreach (ObjectId id in record)
{
Entity entity = (Entity)id.GetObject(OpenMode.ForRead, false, false);
CADGeometryModel geoModel = new CADGeometryModel();
switch (entity.GetRXClass().Name)
{
case "AcDbPolyline":
Teigha.DatabaseServices.Polyline pl = (Teigha.DatabaseServices.Polyline)entity;
IList<XYZ> listPoints = new List<XYZ>();
for (int i = 0; i < pl.NumberOfVertices; i++)
{
listPoints.Add(new XYZ(MillimetersToUnits(pl.GetPoint2dAt(i).X), MillimetersToUnits(pl.GetPoint2dAt(i).Y), 0));
}
PolyLine polyLine = PolyLine.Create(listPoints);
listCADModels.Add(new CADGeometryModel() {
CadPolyLine= polyLine,LayerName=pl.Layer });
break;
case "AcDbLine":
Teigha.DatabaseServices.Line line = (Teigha.DatabaseServices.Line)entity;
Autodesk.Revit.DB.Line revitLine = Autodesk.Revit.DB.Line.CreateBound(ConverCADPointToRevitPoint(line.StartPoint), ConverCADPointToRevitPoint(line.EndPoint));
listCADModels.Add(new CADGeometryModel() {
CadCurve=revitLine as Autodesk.Revit.DB.Curve ,LayerName=line.Layer});
break;
case "AcDbArc":
Teigha.DatabaseServices.Arc arc = (Teigha.DatabaseServices.Arc)entity;
double enda, stara;
if (arc.StartAngle> arc.EndAngle)
{
enda = arc.StartAngle;
stara = arc.EndAngle;
}
else
{
enda = arc.EndAngle;
stara = arc.StartAngle;
}
Autodesk.Revit.DB.Arc revitArc = Autodesk.Revit.DB.Arc.Create(Autodesk.Revit.DB.Plane.CreateByNormalAndOrigin(new XYZ( arc.Normal.X, arc.Normal.Y, arc.Normal.Z),
ConverCADPointToRevitPoint(arc.Center)), MillimetersToUnits(arc.Radius), stara, enda);
listCADModels.Add(new CADGeometryModel() {
CadCurve = revitArc as Autodesk.Revit.DB.Curve, LayerName = arc.Layer });
break;
default:
break;
}
}
}
}
}
}
}
}
}
return listCADModels;
}
/// <summary>
/// 毫米转化成英寸
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
private double MillimetersToUnits(double value)
{
return UnitUtils.ConvertToInternalUnits(value, DisplayUnitType.DUT_MILLIMETERS);
}
/// <summary>
/// 将CAD里的点转化为Revit里的点
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
private XYZ ConverCADPointToRevitPoint(Point3d point)
{
return new XYZ(MillimetersToUnits(point.X), MillimetersToUnits(point.Y), MillimetersToUnits(point.Z));
}
}
}
属性类补充
using Autodesk.Revit.DB;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ReadCADWPF
{
public class CADTextModel
{
public CADTextModel()
{
Location = null;
Text = "";
Angel = 0;
Layer = "";
}
public string Text {
get; set; }
public XYZ Location {
get; set; }
public Double Angel {
get; set; }
public string Layer {
get; set; }
}
}
using Autodesk.Revit.DB;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ReadCADWPF
{
public class CADGeometryModel
{
public PolyLine CadPolyLine {
get; set; }
public string LayerName {
get; set; }
public Curve CadCurve {
get; set; }
}
}
启动项补充
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.UI.Selection;
using Autodesk.Revit.Attributes;
using System.Reflection;
namespace ReadCADWPF
{
[Autodesk.Revit.Attributes.Transaction(TransactionMode.Manual)]
public class StartDymo : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIDocument uidoc = commandData.Application.ActiveUIDocument;
Document doc = uidoc.Document;
Reference refer = uidoc.Selection.PickObject(ObjectType.PointOnElement);
ElementId elementId = doc.GetElement(refer).GetTypeId();
ReadCADUtils readCADUtils = new ReadCADUtils();
string file=readCADUtils.GetCADPath(elementId, doc);
List<CADTextModel> cADTexts = readCADUtils.GetCADTextInfo(file);
MainWindow mainWindow = new MainWindow(cADTexts);
mainWindow.ShowDialog();
return Result.Succeeded;
}
}
}
常见问题报错，错误编码e313或e312
此插件与addim交互时出现错误，仅调试一次会正常显示，之后便会报错，所以需要重复启动revit才能实现对应的方法，但是集合成为Ribbon时，不会出现这个错误，可以循环使用，只是调试时会比较麻烦，但是正常使用时一切正常
e313问题的报错问题是因为Teigha的类库TD_Mgd_4.02_11.dll，在运行时，自动生成的部分不足以满足程序运行，需要手动导入其他剩余部分。