一、数据格式转换

  1. //将要素数据转换成站点数据
  2. StationData stationData = new StationData();
  3. for(int i=0;i<dataList.size();i++) {        
  4.     stationData.addData( timeBatch+i, 
  5.     Double.valueOf(dataList.get(i).get("lon").toString()).doubleValue()
  6.     ,Double.valueOf(dataList.get(i).get("lat").toString()).doubleValue()
  7.     ,Double.valueOf(dataList.get(i).get("pre_1h").toString()).doubleValue());
  8. }

二、区域Shp文件数据获取

  1. Resource resource = new ClassPathResource("shp/xx.shp"); 
  2. VectorLayer shapeLayer =MapDataManage.readMapFile_ShapeFile(resource.getFile().getAbsolutePath(),"gb2312");

三、数据插值

  1. /**
  2.      * 
  3.      * stationData 站点数据
  4.      * shapeLayer shp文件数据
  5.      */
  6.     @Override
  7.     public GridData convertGridData(StationData stationData,VectorLayer shapeLayer) {
  9.         GridDataSetting gridDataSetting = new GridDataSetting();
  10.         gridDataSetting.dataExtent = shapeLayer.getExtent();
  11.         //最小边界经度
  12.         double startlon = shapeLayer.getExtent().minX; 
  13.         //System.out.println("startlon："+startlon);
  14.         //最大边界经度
  15.         double endlon = shapeLayer.getExtent().maxX;
  16.         //System.out.println("endlon："+endlon);
  17.         //最小边界纬度
  18.         double startlat = shapeLayer.getExtent().minY;
  19.         //System.out.println("startlat："+startlat);
  20.         //最大边界纬度
  21.         double endlat = shapeLayer.getExtent().maxY;
  22.         //System.out.println("endlat："+endlat);
  23.         int noun=200; //倍数
  24.         //获取经纬度差值乘以倍数，也可理解为步长   
  25.         gridDataSetting.xNum = (int) ((endlon - startlon) * noun );
  26.         gridDataSetting.yNum = (int) ((endlat - startlat) * noun );
  27.         //设置插值
  28.         InterpolationSetting interpolationSetting = new InterpolationSetting();
  29.         interpolationSetting.setInterpolationMethod(InterpolationMethods.IDW_Neighbors);
  30.         interpolationSetting.setRadius(1); //搜索半径
  31.         interpolationSetting.setMinPointNum(3);
  32.         interpolationSetting.setGridDataSetting(gridDataSetting);
  33.         //插值成格点数据
  34.         return  stationData.interpolateData(interpolationSetting);
  35.     }