//返回控件的数据库对象 var databae = mxOcx.GetDatabase(); //返回数据库中的块表对象 var blkTab = databae.GetBlockTable(); //创建一个遍历块表中所有记录的遍历器 var mBlockTableiter = blkTab.NewIterator(); //移动当前遍历器位置 for (; !mBlockTableiter.Done(); mBlockTableiter.Step()) { //返回遍历器当前位置的记录 var blkRec = mBlockTableiter.GetRecord(); //创建一个遍历块表中所有记录的遍历器 var mBlockTableReciter = blkRec.NewIterator(); var mMaxPt = mxOcx.NewPoint(); var mMinPt = mxOcx.NewPoint(); var mMaxPtTemp = mxOcx.NewPoint(); var mMinPtTemp =mxOcx.NewPoint(); //移动当前遍历器位置 for (; !mBlockTableReciter.Done(); mBlockTableReciter.Step(true, false)) { //与用户交互在图面上选择一个实体 var ent = mBlockTableReciter.GetEntity(); //返回实体的最小矩形框外包 ent.GetBoundingBox(mMinPtTemp, mMaxPtTemp); if ((mMinPtTemp == null) || (mMaxPtTemp == null)) break; mMaxPt.x = Math.max(mMaxPt.x, mMaxPtTemp.x); mMaxPt.y = Math.max(mMaxPt.y, mMaxPtTemp.y); mMinPt.x = Math.min(mMinPt.x, mMinPtTemp.x); mMinPt.y = Math.min(mMinPt.y, mMinPtTemp.y); } if ((mMinPtTemp == null) || (mMaxPtTemp == null)) continue; var mNewBasePt = mxOcx.NewPoint(); mNewBasePt.x = mMinPt.x + (mMaxPt.x - mMinPt.x) / 2; mNewBasePt.y = mMinPt.y + (mMaxPt.y - mMinPt.y) / 2; //块表记录的插入原点属性 blkRec.Origin = mNewBasePt; //重新生成图，重新生成所有显示数据 mxOcx.Regen(); } } | 
