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下面是一个示例函数,它使用C#和AutoCAD API将对象集合复制到另一个数据库中,并考虑了图层、线宽、线形和块等关联信息:
```csharp
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;
public class CopyObjects
{
[CommandMethod("CopyObjects")]
public void CopyObjectsToDatabase()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
// 提示用户选择要复制的对象
PromptSelectionResult selectionResult = doc.Editor.GetSelection();
if (selectionResult.Status == PromptStatus.OK)
{
using (Transaction tr = db.TransactionManager.StartTransaction())
{
// 打开目标数据库
Database destDb = new Database(true, true);
// 复制源数据库的相关设置到目标数据库(如图层、线宽、线形等)
destDb.CopyFrom(db);
BlockTableRecord destBtr = (BlockTableRecord)tr.GetObject(destDb.BlockTableId, OpenMode.ForWrite);
SelectionSet selectionSet = selectionResult.Value;
foreach (SelectedObject selectedObject in selectionSet)
{
ObjectId sourceId = selectedObject.ObjectId;
Entity sourceEntity = tr.GetObject(sourceId, OpenMode.ForRead) as Entity;
if (sourceEntity != null)
{
Entity destEntity = sourceEntity.Clone() as Entity;
// 将克隆的实体添加到目标块表记录中
destBtr.AppendEntity(destEntity);
tr.AddNewlyCreatedDBObject(destEntity, true);
}
tr.Commit();
// 保存并关闭目标数据库
string fileNameDestDb= "C:\\Path\\To\\Destination\\Database.dwg";
if (!string.IsNullOrEmpty(fileNameDestDb))
{
destDb.SaveAs(fileNameDestDb, DwgVersion.Current);
Application.DocumentManager.MdiActiveDocument.SendStringToExecute("_-INSERT\n" + fileNameDestDB + "\n", false,false,false);
}
}
}
}
}
}
```
这个函数首先提示用户选择要复制的对象,然后在事务中打开目标数据库,并将源数据库的相关设置(如图层、线宽、线形等)复制到目标数据库。接着遍历所选对象集合,对每个实体进行克隆并添加到目标块表记录中。最后保存并关闭目标数据库。
请注意,在实际应用中可能需要根据具体需求进行适当修改和完善。
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