public static bool TryGetAddress(PhotoMetadata meta, out GoogleAddressInfo address)
{
var result = false;
address = new GoogleAddressInfo();
var foundAddress = false;
var levelLimit = 3;
var currentLevel = 0;
foreach (var duration in cache.Values)
{
foreach (var span in duration.Spans)
{
if (LocateSameDay)
{
result = meta.TakenDate.Date >= span.StartTime.Date && meta.TakenDate.Date <= span.EndTime.Date;
}
else
{
result = meta.TakenDate >= span.StartTime && meta.TakenDate <= span.EndTime;
}
if (result)
{
foundAddress = true;
currentLevel = duration.Location.address_components.Length;
if (string.IsNullOrWhiteSpace(address.place_id))
{
address = duration.Location;
}
else if (address.address_components.Length < currentLevel)
{
address = duration.Location;
}
if (currentLevel >= levelLimit)
{
break;
}
}
}
}
result = foundAddress;
return(result);
}
private static TripDuration InitTripDuration(PhotoMetadata meta)
{
TripDuration duration = new TripDuration();
duration.Location = meta.Address;
duration.Spans = new TripSpan[1];
TripSpan span = new TripSpan();
span.StartTime = meta.TakenDate;
span.EndTime = meta.TakenDate;
duration.Spans[0] = span;
var addressComponents = meta.Address.address_components;
if (addressComponents != null && addressComponents.Length > 1)
{
duration.Parents = new TripDuration[addressComponents.Length - 1];
for (uint i = 1; i < addressComponents.Length; i++)
{
var placeId = string.Format("{0}_{1}", meta.Address.place_id, addressComponents[i].types[0]);
if (!cache.ContainsKey(placeId))
{
var address = new GoogleAddressInfo();
address.place_id = placeId;
address.address_components = new GoogleAddressType[addressComponents.Length - i];
Array.Copy(addressComponents, 1, address.address_components, 0, address.address_components.Length);
var higherDuration = new TripDuration();
higherDuration.Location = address;
higherDuration.Spans = new TripSpan[1];
higherDuration.Spans[0] = span;
cache.Add(placeId, higherDuration);
}
duration.Parents[i - 1] = cache[placeId];
}
}
return(duration);
}
private static bool TryGetLocation(GPSInfo gps, out GoogleAddressInfo address)
{
var result = false;
address = new GoogleAddressInfo();
foreach (var info in addressCache)
{
result = gps.Lat <= info.geometry.bounds.northeast.lat &&
gps.Lat >= info.geometry.bounds.southwest.lat &&
gps.Lon <= info.geometry.bounds.northeast.lng &&
gps.Lon >= info.geometry.bounds.southwest.lng;
if (result)
{
address = info;
}
}
return(result);
}