/// <summary>
/// 百度矢量要素下载(数据下载写入shp文件的时候可能出现问题，比如下载网络波动中断到时系统无法识别（解决办法先吧数据下载到数据在写入shp文件）)
/// </summary>
/// <param name="Result"></param>
/// <returns></returns>
public WebApiResult <string> BaiduDownload(BaiduMapFeatureDownloadResult Result)
{
this.countdown = new CountdownEvent(Result.TaskCount);
this.Result_BFeature = Result;
this.N = Result.TaskCount;
UpdateLastLoc <BaiduMapFeatureDownloadResult>(Result.GUID);
log = new TaskLogEntity()
{
GUID = Result.GUID, Name = Result.TName, Type = "矢量要素", Description = "BaiduDownload", Status = "进行中", Parameter = JsonHelper.ToJson(Result), SavePath = Result.SavePathText
};
//操作日志
new Log <BaiduMapFeatureDownloadResult>(log);
if (Result.LayerName == "道路")
{
xmlDoc.Load(MapFeatureConfig);
///////////////////////////////////////////////////////////////////////////////
// GDAL创建shp文件
// 注册所有的驱动
Ogr.RegisterAll();
// GDAL中文路径支持
OSGeo.GDAL.Gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8", "YES");
// 属性表字段中文支持
OSGeo.GDAL.Gdal.SetConfigOption("SHAPE_ENCODING", "CP936");
// 设置坐标系存储文件夹gdal-data路径
OSGeo.GDAL.Gdal.SetConfigOption("GDAL_DATA", System.Windows.Forms.Application.StartupPath + "\\gdal-data");
Driver oDriver = Ogr.GetDriverByName("ESRI Shapefile");
if (oDriver == null)
{
return(new WebApiResult <string>()
{
success = 0, msg = "GDAL驱动不可用，请检查！"
});
}
// 创建数据源
DataSource oDS = oDriver.CreateDataSource(Result.SavePathText, null);
if (oDS == null)
{
return(new WebApiResult <string>()
{
success = 0, msg = "创建数据源失败，请检查！"
});
}
oLayer = oDS.GetLayerByName(Result.TName);
if (oLayer == null)
{
// 创建图层，创建一个多线图层，并指定空间参考
OSGeo.OSR.SpatialReference oSRS = new OSGeo.OSR.SpatialReference("PROJCS[\"WGS_1984_Pseudo_Mercator\",GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Mercator\"],PARAMETER[\"false_easting\",0.0],PARAMETER[\"false_northing\",0.0],PARAMETER[\"central_meridian\",0.0],PARAMETER[\"standard_parallel_1\",0.0],UNIT[\"Meter\",1.0]]");
//OSGeo.OSR.SpatialReference oSRS = new OSGeo.OSR.SpatialReference("");
//oSRS.SetWellKnownGeogCS("EPSG:4326");
oLayer = oDS.CreateLayer(Result.TName, oSRS, wkbGeometryType.wkbMultiLineString, null);
if (oLayer == null)
{
return(new WebApiResult <string>()
{
success = 0, msg = "创建图层失败，请检查！"
});
}
// 创建属性表
// 先创建一个叫Name的字符型属性，字符长度为100
FieldDefn oFieldName = new FieldDefn("Name", FieldType.OFTString);
oFieldName.SetWidth(100);
oLayer.CreateField(oFieldName, 1);
// 再创建一个叫Type的字符型属性，字符长度为50
FieldDefn oFieldType = new FieldDefn("Type", FieldType.OFTString);
oFieldType.SetWidth(50);
oLayer.CreateField(oFieldType, 1);
// 再创建一个叫UID的字符型属性，字符长度为50
FieldDefn oFieldUID = new FieldDefn("UID", FieldType.OFTString);
oFieldUID.SetWidth(50);
oLayer.CreateField(oFieldUID, 1);
}
/////////////////////////////////////////////////////////////////////////////////
threadlog = new ThreadTaskLogEntity()
{
GUID = Result.GUID, TaskLog_GUID = Result.GUID, Status = "进行中", TStatus = 1, TName = Result.TName, IsPaused = false, URL = Result.URL, Parameter = JsonHelper.ToJson(Result)
};
//计算Total并更新
threadlog.Total = GetList("SELECT KWName FROM mapbar_poi WHERE KWType = '道路'", "KWName").Count;
new Log <BaiduMapFeatureDownloadResult>(threadlog);
log.Count = threadlog.Total;
new Log <BaiduMapFeatureDownloadResult>(log);
Thread[] t = new Thread[Result.TaskCount];
for (int num = 0; num < Result.TaskCount; num++)
{
try
{
t[num] = new Thread(new ParameterizedThreadStart(run_BFeature))
{
Name = "Thread " + num.ToString()
};
t[num].Start(num);
}
catch (Exception ex)
{
threadlog.Status = "错误";
threadlog.ErrorMsg = ex.ToString();
threadlog.TStatus = 3;
new Log <BaiduMapFeatureDownloadResult>(threadlog);
log.Status = "错误";
log.ErrorMsg = ex.ToString();
log.ErrorDate = DateTime.Now.ToString();
//操作日志
new Log <BaiduMapFeatureDownloadResult>(log);
return(new WebApiResult <string>()
{
success = 0, msg = ex.ToString()
});
}
}
countdown.Wait();
oLayer.Dispose();
oDS.Dispose();
for (int num = 0; num < Result.TaskCount; num++)
{
t[num].Abort();
}
lock (obj)
{
if (!Log <BaiduMapFeatureDownloadResult> .GetThreadLogEntity(this.Result_BFeature.GUID).IsPaused)
{
//配置文件参数信息更新
xmlDoc["MapFeature"]["bmap"]["dict_index"].InnerText = "0";
xmlDoc.Save(MapFeatureConfig);
log.Status = "已完成";
log.CompleteTime = DateTime.Now.ToString();
log.Current = log.Count;
threadlog.Status = "已完成";
threadlog.TStatus = 2;
threadlog.Current = threadlog.Total;
threadlog.Current_loc = List2Str(current_loc);
//操作日志
new Log <BaiduMapFeatureDownloadResult>(threadlog);
new Log <BaiduMapFeatureDownloadResult>(log);
return(new WebApiResult <string>()
{
success = 1, msg = "百度地图要素下载完成！"
});
}
}
}
else
{
return(new WebApiResult <string>()
{
success = 2, msg = "图层类型不符合"
});
}
return(null);
}
/// <summary>
/// 百度矢量要素下载
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public WebApiResult <string> Any(BaiduMapFeatureDownloadResult request)
{
MapFeatureDownloadService service = new MapFeatureDownloadService();
return(service.BaiduDownload(request));
}
