private static void setLocation(BitmapMetadata dest, GpsLocation loc)
{
dest.SetQuery(LatitudeRefQuery, Encoding.Default.GetString(loc.LatSignBytes));
dest.SetQuery(LatitudeQuery, bytesToLongs(loc.LatBytes).ToArray());
dest.SetQuery(LongitudeRefQuery, Encoding.Default.GetString(loc.LonSignBytes));
dest.SetQuery(LongitudeQuery, bytesToLongs(loc.LonBytes).ToArray());
}
private static GpsLocation readLocation(BitmapMetadata metadata)
{
var latProp = metadata.GetQuery(LatitudeQuery) as ulong[];
var lonProp = metadata.GetQuery(LongitudeQuery) as ulong[];
if (!(metadata.GetQuery(LatitudeRefQuery) is string latSignProp) ||
latProp == null ||
!(metadata.GetQuery(LongitudeRefQuery) is string lonSignProp) ||
lonProp == null)
{
return(null);
}
if (latSignProp.Length != 1 || lonSignProp.Length != 1 ||
latProp.Length != 3 || lonProp.Length != 3)
{
return(null);
}
return(GpsLocation.FromBytes(
Encoding.ASCII.GetBytes(latSignProp),
latProp.SelectMany(BitConverter.GetBytes).ToArray(),
Encoding.ASCII.GetBytes(lonSignProp),
lonProp.SelectMany(BitConverter.GetBytes).ToArray()));
}