qt环境下地图数据的导入与显示

1     QObject::connect(widget, SIGNAL(ToolUsed(int, double, double, double, double, double, bool, bool, bool&)),
2                      this, SLOT(OnToolUsed(int, double, double, double, double, double, bool, bool, bool&)));

  1 //加载文件按钮响应槽
  2 void MainWindow::OnLoadFile_Clicked(){
  3     QStringList RowLabels;
  4 
  5     //qDebug()<<"clicked";
  6     QString StrFile = QFileDialog::getOpenFileName(this,
  7                                                    tr("Open File"),
  8                                                    ".",
  9                                                    tr("Text File(*.csv)"));
 10     if(!StrFile.isEmpty()){
 11         QFile f(StrFile);
 12         if(!f.open(QIODevice::ReadOnly | QIODevice::Text)){
 13             return ;
 14         }
 15         //将文件数据写进文本流中
 16         QTextStream stream(&f);
 17         //获取表头字符串
 18         QString head = stream.readLine();
 19         //qDebug()<< head;
 20         //将表头字符串以‘,’分割，存入链表
 21         QStringList fields = head.split(",");
 22         //向tablewidget 表头中写一行数据
 23         for(int i = 0; i < fields.size(); ++i){
 24             RowLabels<<fields[i];
 25         }
 26         //设置Table的显示方式
 27         //pTableWidget->setVerticalHeaderLabels(RowLabels);//列表头
 28         pTableWidget->setHorizontalHeaderLabels(RowLabels);//行表头
 29         pTableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);//行选中
 30         pTableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);//双击不可编辑单元格
 31         //pTableWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);//根据需要自动显示/*没有效果*/
 32         //pTableWidget->setAutoScroll(true);//根据需要自动显示/*没有效果*/
 33         pTableWidget->horizontalHeader()->setStyleSheet("QHeaderView::section{background:skyblue;}");//设置表头颜色
 34         pTableWidget->setRowCount(fields.size());
 35         //qDebug()<< fields.size();
 36 
 37 
 38         int iCellCnName = fields.indexOf("CellNameCN");
 39         int iLongitude = fields.indexOf("Longitude");
 40         int iLatitude = fields.indexOf("Latitude");
 41         int iAzimuth = fields.indexOf("Azimuth");
 42         if(-1 == iCellCnName | -1 == iLongitude | -1 == iLatitude | -1 == iAzimuth ){
 43             f.close();
 44             return;
 45         }
 46         CMapXFeatureFactory *pFactory = pCMapX->FeatureFactory();
 47         CMapXLayers *pLayers = pCMapX->Layers();
 48         CMapXLayer *pLayer = pLayers->CreateLayer("test");
 49         //没有下面这两句不会显示label
 50         pLayer->SetAutoLabel(true);//详见手册
 51         pLayer->LabelProperties()->SetParallel(false);
 52 
 53         pLayer->BeginAccess(miAccessReadWrite);
 54         QString strRow;
 55 
 56         while (!stream.atEnd()) {
 57             pTableWidget->insertRow(1);//读一行添加一行
 58             strRow = stream.readLine();
 59             QStringList values = strRow.split(",");
 60             qDebug()<<strRow;
 61             //往WIDGET中写入item
 62             for(int icloum = 0; icloum< values.size(); ++icloum){
 63 
 64                 QTableWidgetItem *Item = new QTableWidgetItem;
 65                 Item->setText(values[icloum]);
 66                 Item->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
 67                 pTableWidget->setItem(1,icloum,Item);
 68             }
 69 
 70             QString strName = values[iCellCnName];
 71             double dLongitude = values[iLongitude].toDouble();
 72             qDebug()<<"12315435634"<<dLongitude;
 73             double dLatitude = values[iLatitude].toDouble();
 74             int nAzimuth = values[iAzimuth] == "" ? 0 : values[iAzimuth].toInt();
 75 
 76             //画饼形pA坐标(dLongitude+0.001*sin(Pi*nAzimuth/360.0),dLatitude + 0.001*cos(Pi*nAzimuth/360.0))
 77             //pB坐标(dLongitude+0.001*sin(Pi*nAzimuth/120.0),dLatitude + 0.001*cos(Pi*nAzimuth/120.0))
 78             //原点坐标O(dLongitude,dLatitude)
 79 
 80             CMapXFeature *pLine = pFactory->CreateLine();//画线
 81             QAxObject *pObj = new QAxObject;
 82             pObj->setControl("MapX.Points.4");
 83             CMapXPoints *pPoints = new CMapXPoints(pObj->asVariant().value<IDispatch*>());
 84 
 85             pPoints->AddXY(dLongitude,dLatitude);
 86             double lng1 = dLongitude + 0.001 * sin(Pi * nAzimuth / 180.0);
 87             double lat1 = dLatitude + 0.001 *cos(Pi *nAzimuth / 180.0);
 88             pPoints->AddXY(lng1,lat1);
 89             pLine->SetKeyValue(strName);
 90 
 91             pLine->Style()->SetLineColor(miColorBlue);
 92             pLine->Style()->SetLineWidthUnit(miStyleUnitTenthsOfPoint);
 93             pLine->Style()->SetLineWidth(20);
 94 
 95             CMapXParts *pParts = pLine->Parts();
 96             pParts->Add(pPoints->asVariant().value<IDispatch*>());
 97             pLayer->AddFeature(pLine->asVariant().value<IDispatch*>());
 98         }
 99         pCMapX->SetBounds(pLayer->Bounds());
100         pLayer->EndAccess();
101         f.close();
102     }
103     else{
104         return ;
105     }
106 
107 }