将预先存在的AutoCAD图形插入当前图形中

Question

我正在尝试以编程方式将预先存在的绘图中的块插入到运行插件的当前绘图中.为此,我在C#.NET表单上有一个按钮,调用以下方法

public void MakeAndInsertObject() //Method to add all windows and doors templates to drawing database for use later
{
    Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; //Stores the active document
    Editor ed = doc.Editor; //Stores the document's editor
    Database dtb = ed.Document.Database; //Stores the database from the editor

    Transaction tr = dtb.TransactionManager.StartTransaction(); //Start a transaction with the document's database
    DocumentLock docLock = doc.LockDocument();

    using (tr)    
    using (docLock)
    {
        BlockTableRecord btr = (BlockTableRecord)tr.GetObject(dtb.CurrentSpaceId, OpenMode.ForWrite); //Opens the block table record so you can write to it
        BlockTableRecord newBlockDef = new BlockTableRecord(); //Creates a new record in the block table
        BlockTable blockTable = (BlockTable)tr.GetObject(dtb.BlockTableId, OpenMode.ForWrite); //Opens the block table so it can be written to
        //Pointing new block to correct drawing file
        newBlockDef.Name = "Door";
        newBlockDef.PathName = "C:/Users/Administrator/Documents/All Code/clearspan-autocad-tools-development/Templates/locks/DOOR.dwg";
        blockTable.Add(newBlockDef); //Adds the block table record to the block table
        BlockReference newBlock = new BlockReference(new Point3d(0, 0, 0), newBlockDef.ObjectId); //Insert a block reference with the newly created block
        btr.AppendEntity(newBlock); //Inserts the block into the current space (Model or Paper) via the block table record
        //Updates the Transaction with all new database objects
        tr.AddNewlyCreatedDBObject(newBlockDef, true);
        tr.AddNewlyCreatedDBObject(newBlock, true);
        tr.Commit(); //Applies all changes made as part of the current transaction
        tr.Dispose();
    }
}

代码完全执行但我的DOOR.dwg文件中的块没有出现在位置(0,0,0),我不知道它为什么不

Answer 1

我从基恩·沃姆斯利 (Keen Walmsley)那里摘取了一个片段，并对其进行了编辑，使其不那么繁琐且更易读。这是非常基本的。你应该读一下基恩的一些东西，它非常好，而且他的笔记非常具有描述性。使用方法请参见下面的代码。

public void ImportBlocks()
{
    DocumentCollection dm =
    Application.DocumentManager;
    Editor ed = dm.MdiActiveDocument.Editor;
    Database destDb = dm.MdiActiveDocument.Database;
    Database sourceDb = new Database(false, true);
    try
    {
        // Get name of DWG from which to copy blocks
        var sourceFileName = ed.GetString("\nEnter the path of the source drawing: ");

        // Read the DWG into a side database
        sourceDb.ReadDwgFile(sourceFileName.StringResult, System.IO.FileShare.Read, true, "");

        // Create a variable to store the list of block identifiers
        ObjectIdCollection blockIds = new ObjectIdCollection();

        var tm = sourceDb.TransactionManager;

        using (var myT = tm.StartOpenCloseTransaction())
        {
            // Open the block table
            BlockTable bt = (BlockTable)myT.GetObject(sourceDb.BlockTableId, OpenMode.ForRead, false);

            // Check each block in the block table
            foreach (ObjectId btrId in bt)
            {
                BlockTableRecord btr =
                (BlockTableRecord)myT.GetObject(btrId, OpenMode.ForRead, false);

                // Only add named & non-layout blocks to the copy list
                if (!btr.IsAnonymous && !btr.IsLayout)
                    blockIds.Add(btrId);
                btr.Dispose();
            }
        }
        // Copy blocks from source to destination database
        var mapping = new IdMapping();
        sourceDb.WblockCloneObjects(blockIds,
            destDb.BlockTableId,
            mapping,
            DuplicateRecordCloning.Replace,
            false);
    }
    catch(Autodesk.AutoCAD.Runtime.Exception ex)
    {
        ed.WriteMessage("\nError during copy: " + ex.Message);
    }
    sourceDb.Dispose();
}

只是出于好奇，如果有人开发了一个用于 AutoCAD 的 python API，你会使用它吗？或者试一试？