public void GeoParser_ExifRead_ParseGpsTest()
{
var latitude = GeoParser.ConvertDegreeMinutesSecondsToDouble("52° 18' 29.54\"", "N");
Assert.AreEqual(52.308205555500003, latitude, 0.000001);
var longitude = GeoParser.ConvertDegreeMinutesSecondsToDouble("6° 11' 36.8\"", "E");
Assert.AreEqual(6.1935555554999997, longitude, 0.000001);
}
private double GetGeoLocationLongitude(List <Directory> allExifItems)
{
var longitudeString = string.Empty;
var longitudeRef = string.Empty;
foreach (var exifItem in allExifItems)
{
var longitudeRefLocal = exifItem.Tags.FirstOrDefault(
p => p.DirectoryName == "GPS" &&
p.Name == "GPS Longitude Ref")?.Description;
if (longitudeRefLocal != null)
{
longitudeRef = longitudeRefLocal;
}
var longitudeLocal = exifItem.Tags.FirstOrDefault(
p => p.DirectoryName == "GPS" &&
p.Name == "GPS Longitude")?.Description;
if (longitudeLocal != null)
{
longitudeString = longitudeLocal;
continue;
}
var locationQuickTime = exifItem.Tags.FirstOrDefault(
p => p.DirectoryName == "QuickTime Metadata Header" &&
p.Name == "GPS Location")?.Description;
if (locationQuickTime != null)
{
return(GeoParser.ParseIsoString(locationQuickTime).Longitude);
}
}
if (!string.IsNullOrWhiteSpace(longitudeString))
{
var longitude = GeoParser.ConvertDegreeMinutesSecondsToDouble(longitudeString, longitudeRef);
longitude = Math.Floor(longitude * 10000000000) / 10000000000;
return(longitude);
}
return(GetXmpGeoData(allExifItems, "exif:GPSLongitude"));
}
