Exemplo n.º 1
0
        /// <summary>
        /// 区域查找
        /// </summary>
        /// <param name="queryArea">选择的范围,经纬度之间','隔开,"小经,小纬,大经,大纬"</param>
        /// <param name="ncfilepath">nc文件路径</param>
        /// <param name="zoom">地图缩放等级</param>
        public string ZoneLookUp(string queryArea, string ncfilepath, string zoom)
        {
            Inital(ncfilepath);
            IRectangle zoneQueryRect = CoreUtil.GetRectangle <QueryRectangleF>(queryArea);   //前台所要查找的范围
            //2.读取nc文件
            //先读取经纬度信息,确定读取的下标
            NCFileUtil    ncFile = new NCFileUtil(ncfilepath);
            NcLonLatModel ncLatLonModel = ncFile.ReadNcLonLat(models[0]);
            int           minLonIndex = 0, maxLonIndex = 0, minLatIndex = 0, maxLatIndex = 0;

            CoreUtil.GetIndex(ncLatLonModel.Lon, zoneQueryRect.minLon, zoneQueryRect.maxLon, ref minLonIndex, ref maxLonIndex);
            CoreUtil.GetIndex(ncLatLonModel.Lat, zoneQueryRect.minLat, zoneQueryRect.maxLat, ref minLatIndex, ref maxLatIndex);
            ncLatLonModel.minLonIndex = minLonIndex; ncLatLonModel.minLatIndex = minLatIndex; ncLatLonModel.maxLonIndex = maxLonIndex; ncLatLonModel.maxLatIndex = maxLatIndex;

            QueryNcDataModel queryNcDataModel = new QueryNcDataModel();

            queryNcDataModel.ncLatLonModel = ncLatLonModel;
            queryNcDataModel.StartRow      = minLatIndex;
            queryNcDataModel.StartColumn   = minLonIndex;
            queryNcDataModel.EndRow        = maxLatIndex;
            queryNcDataModel.EndColumn     = maxLonIndex;
            queryNcDataModel.RowCount      = maxLatIndex - minLatIndex + 1;
            queryNcDataModel.ColumnCount   = maxLonIndex - minLonIndex + 1;
            queryNcDataModel.Dir           = ncFile.GetValueInArea(models[0].Dir, minLatIndex, minLonIndex, queryNcDataModel.RowCount, queryNcDataModel.ColumnCount);
            queryNcDataModel.Value         = ncFile.GetValueInArea(models[0].Value, minLatIndex, minLonIndex, queryNcDataModel.RowCount, queryNcDataModel.ColumnCount);
            queryNcDataModel.Levels        = CoreUtil.GetLEVEL(queryNcDataModel.RowCount, queryNcDataModel.ColumnCount, 6);

            GFSWeatherJson gfsjson = new GFSWeatherJson();
            string         json    = gfsjson.createGeoJsonFromNetcdf(queryNcDataModel, int.Parse(zoom));

            return(json);
        }