插入图块，怎么设置左下角为基点？

• 回答：

    // 插入块的块名。
  var sBlkName = "junxing";
  // 把要插入的块文件引入到控件数据库中。
  var sBlkFile = mxOcx.GetOcxAppPath() + "\\Blk\\attribblock.dwg";
  mxOcx.InsertBlock(sBlkFile, sBlkName);
  var database = mxOcx.GetDatabase();
  var blkTab =  database.GetBlockTable();
  var rec = blkTab.GetAt("junxing");
  if (rec == null)
      return;
  var iter = rec.NewIterator();
  var dMinX = 0, dMinY = 0;
  var isSet = false;
  for (; !iter.Done(); iter.Step())
  {
      var  ent = iter.GetEntity();
      var pt1 =mxOcx.NewPoint();
      var pt2 =mxOcx.NewPoint();
      ent.GetBoundingBox(pt1,pt2);
      if (pt1 == null)
          continue;
  
      if (isSet)
      {
          if (dMinX > pt1.x)
              dMinX = pt1.x;
  
          if (dMinY > pt1.y)
              dMinY = pt1.y;
      }
      else
      {
          dMinX = pt1.x;
          dMinY = pt1.y;
          isSet = true;
      }
  }
  if (isSet)
  {
      var pt =mxOcx.NewPoint();
      pt.x = dMinX;
      pt.y = dMinY;
      rec.Origin = pt;
  
  }
  mxOcx.DrawBlockReference(0, 0, "junxing", 1, 0);
  mxOcx.ZoomAll();