/// <summary>
/// 逆地址编码
/// </summary>
public async Task <AmapReturn> Geocode_Regeo(double lon, double lang)
{
string result = await _amapHttpClient.GetStringAsync($"{ApiVersion}/geocode/regeo/?location={lon},{lang}");
AmapReturn amap = Newtonsoft.Json.JsonConvert.DeserializeObject <AmapReturn>(result);
return(amap);
}
/// <summary>
/// 获取图片的拍摄事件经纬度（如果有）
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static async Task <ImageModel> HanadleImage(FileInfo file)
{
Stopwatch sw = new Stopwatch();
sw.Start();
ImageModel model = new ImageModel();
//using (Image<Rgba32> image = Image.Load(file.FullName))
//{
#region 原始版本 .net framework下慢 .net core下快
//ExifValue photoDateValue = image?.MetaData?.ExifProfile?.GetValue(ExifTag.DateTimeOriginal);
//if (photoDateValue == null)
//{
// model.PhotoDate = file.CreationTime;
// return model;
//}
//CultureInfo enUS = new CultureInfo("en-US");
//bool isConvertSucced = DateTime.TryParseExact(photoDateValue?.Value?.ToString(), "yyyy:MM:dd HH:mm:ss", enUS, DateTimeStyles.None, out DateTime result);//YYYY:MM:DD HH:mm:ss
//if (isConvertSucced)
//{
// model.PhotoDate = result;
//}
//else
//{
// model.PhotoDate = file.CreationTime;
//}
//ExifValue latitudeValue = image.MetaData.ExifProfile.GetValue(ExifTag.GPSLatitude);
//if (latitudeValue != null && latitudeValue.Value != null)
//{
// Rational[] latitudeArray = latitudeValue.Value as Rational[];
// if (latitudeArray != null)
// {
// model.Latitude = latitudeArray.ToDouble();
// }
//}
//ExifValue longitudeValue = image.MetaData.ExifProfile.GetValue(ExifTag.GPSLongitude);
//if (longitudeValue != null && longitudeValue.Value != null)
//{
// Rational[] longitudeValueArray = longitudeValue.Value as Rational[];
// if (longitudeValueArray != null)
// {
// model.Longitude = longitudeValueArray.ToDouble();
// }
//}
#endregion
IEnumerable <MetadataExtractor.Directory> directories = ImageMetadataReader.ReadMetadata(file.FullName).Where(_ => _.Name == "GPS" || _.Name == "Exif SubIFD");
if (!directories.Any())
{
model.PhotoDate = file.CreationTime;
return(model);
}
foreach (MetadataExtractor.Directory item in directories)
{
switch (item.Name)
{
case "Exif SubIFD":
if (item.TryGetDateTime(36867, out DateTime create))
{
model.PhotoDate = create;
}
break;
case "GPS":
Rational[] la = item.GetRationalArray(2); //纬度
//Console.WriteLine();
model.Latitude = la.ToDouble();
model.Longitude = item.GetRationalArray(4).ToDouble();
AmapReturn reut = await amapHelper.Geocode_Regeo(model.Longitude.Value, model.Latitude.Value);
model.Address = reut.Regeocode.FormattedAddress;
break;
default:
break;
}
}
//}
sw.Stop();
//logger.Debug($"当前线程：{System.Threading.Thread.CurrentThread.ManagedThreadId}\r\n文件名：{file.FullName}\r\n耗时：{sw.Elapsed}\r\n文件大小：{Math.Round(file.Length * 1.0 / 1024 / 1024, 0)}MB\r\n*******************************************************************");
return(model);
}
