while (bdtbEnt.valid())
     {
         dan::Vector<dan::Vector<dan::Point3DF> > bdtbCircleNode = bdtbEnt->getNodes();  //获得BDTB图层的环节点
         QNodesArray bdtbNodesArray = SDFUN::nodes3dTonodesArray(bdtbCircleNode); //转成QVector
         dan::Vector<int> deleteEnt;
         bool isok;
         for (int t = 0; t != bdtbNodesArray.size(); ++t)
         {
             for (int i = 0; i != bdtbNodesArray[t].size(); ++i)
             {
                dan::Object<iDataPlugin::IPGEntityCursor>  xzqEntCursor = ipDatabase->iDataSSGetPath(xzqLayer, bdtbEnt->getNodes(), iDataPlugin::IPGDataBase::IntersectsItemShape); //得到相接的xzqEntCursor
                dan::Object<iDataPlugin::IPGEntity> xzqEnt = xzqEntCursor->next();
                int ttk = 0;
                isok = true;
                while (xzqEnt.valid())
                {
                     ttk++;
                     if (ttk == 1)
                     {
                         isok = false;
                     }
                     test = 2;
                     dan::Vector<dan::Vector<dan::Point3DF> > xzqCircleNode = xzqEnt->getNodes(); //获得BDTB图层的环节点;
                      QNodesArray xzqNodesArray = SDFUN::nodes3dTonodesArray(xzqCircleNode); //转成QList
                     for (int m = 0; m != xzqNodesArray.size(); ++m)
                     {
                         QPointF ptclose;
                         int nidx;
                         double dparam;
                         double distanceShort = SquarePtDistPoly(bdtbNodesArray[t][i], xzqNodesArray[m], ptclose, nidx, dparam);  //得到点到面的最短距离
                         if (distanceShort < 1e-3)  //如果距离最近则说明该点位于相交线上;而后进行判断是否为同一点：
                         {
                             for (QPointF var : xzqNodesArray[m])
                             {
                                 double dist_tmp = square2dDist(bdtbNodesArray[t][i], var);
                                 if (dist_tmp < 1e-3)//只要有一个点的距离很小，就认为是同一点
                                 {
                                     isok = true;
                                     break;
                                 }
                             }
                         }
                     }
                     xzqEnt = xzqEntCursor->next();
                }
                if (!isok)
                {
                    //需要再判断是否在其他图层当中--.--
                    bdtbNodesArray[t].removeAt(i);
                    i--;
                    test = 0;
                }
             }
         }
         if (test == 0)
         {
             bdtbEnt->setNodes(SDFUN::nodes3dTonodesArray(bdtbNodesArray));
             modifyEntList.append(bdtbEnt);
         }
         if (modifyEntList.size() > 5000)
         {
             ipDatabase->modifyEntityFromDatabase(bdtbLayer, modifyEntList);  //删除节点后修改
             modifyEntList.clear();
         }
         bdtbEnt = bdtbEntCursor->next();
     }
     progressbar->closeProgress();
     if (modifyEntList.size() > 0)
     {
         ipDatabase->modifyEntityFromDatabase(bdtbLayer, modifyEntList);  //修改实体到图层
         QMessageBox::warning(NULL, QString::fromLocal8Bit("节点去除"), QString::fromLocal8Bit("多余节点去除完成"));
     }
     adapter->refresh();