public void ReverseGeoCode_RadialSearch_ReturnsMaxCountResults()
{
// Read a file with data with points in and around London in a 20Km radius
var data = GeoFileReader.ReadExtendedGeoNames(@"testdata\test_GB.txt").ToArray();
var rg = new ReverseGeoCode <ExtendedGeoName>(data);
var center = rg.CreateFromLatLong(51.5286416, 0); //Exactly at 0 longitude so we test left/right of prime meridian
var maxresults = 10;
Assert.AreEqual(47, data.Length); //File should contain 47 records total
var expected_ids = new[] { 2643741, 2646003, 2643743, 6690870, 2651621, 2655775, 2636503, 2634677, 2656194, 2653266 };
Assert.AreEqual(maxresults, expected_ids.Length);
// Search from the/a center in London for all points in a 10Km radius, allowing only maxresults results
var searchresults = rg.RadialSearch(center, 100000.0, maxresults).ToArray();
// Number of results should match length of expected_id array
Assert.AreEqual(expected_ids.Length, searchresults.Length);
// Check if each result is in the expected results array
foreach (var r in searchresults)
{
Assert.IsTrue(expected_ids.Contains(r.Id));
}
}
/// <summary>
/// Reverse Geo Syncing for a folder
/// </summary>
/// <param name="metaFilesInDirectory">list of files to lookup</param>
/// <param name="overwriteLocationNames">true = overwrite the location names, that have a gps location</param>
/// <returns></returns>
public List <FileIndexItem> LoopFolderLookup(List <FileIndexItem> metaFilesInDirectory,
bool overwriteLocationNames)
{
InitReverseGeoCode();
metaFilesInDirectory = RemoveNoUpdateItems(metaFilesInDirectory, overwriteLocationNames);
var subPath = metaFilesInDirectory.FirstOrDefault()?.ParentDirectory;
new GeoCacheStatusService(_cache).StatusUpdate(subPath, metaFilesInDirectory.Count, StatusType.Total);
foreach (var metaFileItem in metaFilesInDirectory.Select(
(value, index) => new { value, index }))
{
// Create a point from a lat/long pair from which we want to conduct our search(es) (center)
var place = _reverseGeoCode.CreateFromLatLong(
metaFileItem.value.Latitude, metaFileItem.value.Longitude);
// Find nearest
var nearestPlace = _reverseGeoCode.NearestNeighbourSearch(place, 1).FirstOrDefault();
// Distance to avoid non logic locations
var distanceTo = GeoDistanceTo.GetDistance(
nearestPlace.Latitude,
nearestPlace.Longitude,
metaFileItem.value.Latitude,
metaFileItem.value.Longitude);
new GeoCacheStatusService(_cache).StatusUpdate(metaFileItem.value.ParentDirectory,
metaFileItem.index, StatusType.Current);
if (distanceTo > 35)
{
continue;
}
// if less than 35 kilometers from that place add it to the object
metaFileItem.value.LocationCity = nearestPlace.NameASCII;
// Catch is used for example the region VA (Vatican City)
try
{
metaFileItem.value.LocationCountry = new RegionInfo(nearestPlace.CountryCode).NativeName;
}
catch (ArgumentException e)
{
Console.WriteLine(e);
}
metaFileItem.value.LocationState = GetAdmin1Name(nearestPlace.CountryCode, nearestPlace.Admincodes);
}
// Ready signal
new GeoCacheStatusService(_cache).StatusUpdate(subPath,
metaFilesInDirectory.Count, StatusType.Current);
return(metaFilesInDirectory);
}
public void ReverseGeoCode_RadialSearch_ReturnsCorrectResults()
{
// Read a file with data with points in and around London in a 20Km radius
var data = GeoFileReader.ReadExtendedGeoNames(@"testdata\test_GB.txt").ToArray();
var rg = new ReverseGeoCode<ExtendedGeoName>(data);
var center = rg.CreateFromLatLong(51.5286416, 0); //Exactly at 0 longitude so we test left/right of prime meridian
Assert.AreEqual(47, data.Length); //File should contain 47 records total
var expected_ids = new[] { 2640729, 2639577, 2642465, 2637627, 2633709, 2643339, 2634677, 2636503, 2652053, 2654710, 2643743, 2646003, 2643741, 2653941, 6690870, 2655775, 2651621, 2650497, 2656194, 2653266, 2648657, 2637433, 2652618, 2646057 };
// Search from the/a center in London for all points in a 10Km radius
var searchresults = rg.RadialSearch(center, 100000.0).ToArray();
// Number of results should match length of expected_id array
Assert.AreEqual(expected_ids.Length, searchresults.Length);
// Check if each result is in the expected results array
foreach (var r in searchresults)
Assert.IsTrue(expected_ids.Contains(r.Id));
}
public void ReverseGeoCode_NearestNeighbourSearch_ReturnsCorrectResults()
{
// Read a file with data with points in and around London in a 20Km radius
var data = GeoFileReader.ReadExtendedGeoNames(@"testdata\test_GB.txt").ToArray();
var rg = new ReverseGeoCode <ExtendedGeoName>(data);
var center = rg.CreateFromLatLong(51.5286416, 0); //Exactly at 0 longitude so we test left/right of prime meridian
Assert.AreEqual(47, data.Length); //File should contain 47 records total
var expected_ids = new[] { 2640729, 2639577, 2642465, 2637627, 2633709, 2643339, 2634677, 2636503, 2652053, 2654710, 2643743, 2646003, 2643741, 2653941, 6690870, 2655775, 2651621, 2650497, 2656194, 2653266, 2648657, 2637433, 2652618, 2646057 };
// Search from the/a center in London for the first X points (where X == expected_ids.length)
var searchresults = rg.NearestNeighbourSearch(center, expected_ids.Length).ToArray();
// Number of results should match length of expected_id array
Assert.AreEqual(expected_ids.Length, searchresults.Length);
// Check if each result is in the expected results array
foreach (var r in searchresults)
{
Assert.IsTrue(expected_ids.Contains(r.Id));
}
}
static void Main(string[] args)
{
MRArguments argument = UsageChecker.checkAndBuildArgument(args);
var r = new ReverseGeoCode <ExtendedGeoName>(GeoFileReader.ReadExtendedGeoNames(@argument.cityDbFileInfo.FullName));
Parallel.ForEach(argument.targetDirs, (dir) => {
if (dir.Name.Contains("@"))
{
Console.WriteLine("skipping {0}.already renamed. maybe.. it`s name contains @ character", dir.Name);
return;
}
FileInfo[] files = dir.GetFiles();
if (files != null && files.Length > 0)
{
Dictionary <String, int> cCodeCounter = new Dictionary <String, int>();
Dictionary <String, int> cityCounter = new Dictionary <String, int>();
foreach (FileInfo file in files)
{
try {
IEnumerable <MetadataExtractor.Directory> directories = ImageMetadataReader.ReadMetadata(file.FullName);
GpsDirectory gpsDirectory = directories.OfType <GpsDirectory>().First();
if (gpsDirectory != null && gpsDirectory.GetGeoLocation() != null)
{
double lat = gpsDirectory.GetGeoLocation().Latitude;
double lon = gpsDirectory.GetGeoLocation().Longitude;
ExtendedGeoName result = r.NearestNeighbourSearch(r.CreateFromLatLong(lat, lon), 1).First();
String city = result.Name;
if (cityCounter.TryGetValue(city, out int tvalue))
{
cityCounter[city] = tvalue + 1;
}
else
{
cityCounter.Add(city, 1);
}
String ccode = result.CountryCode;
if (cCodeCounter.TryGetValue(ccode, out int cvalue))
{
cCodeCounter[ccode] = cvalue + 1;
}
else
{
cCodeCounter.Add(ccode, 1);
}
}
} catch (Exception) { }
}
if (cCodeCounter.Count > 0)
{
int total = 0;
String countryName = "";
int maxCountryCount = 0;
foreach (String key in cCodeCounter.Keys)
{
int tempCCount = cCodeCounter[key];
total += tempCCount;
if (tempCCount > maxCountryCount)
{
countryName = key;
}
}
String cityName = "";
List <Tuple <String, int> > cities = new List <Tuple <String, int> >();
foreach (String key in cityCounter.Keys)
{
cities.Add(new Tuple <string, int>(key, cityCounter[key]));
}
Tuple <String, int>[] citiesArray = cities.OrderBy(tup => tup.Item2).ToArray();
String destination = dir.Name + " @" + countryName;
if (citiesArray != null && citiesArray.Length > 0)
{
destination += (", " + citiesArray[0].Item1);
cityName = citiesArray[0].Item1;
if (citiesArray.Length > 1)
{
Console.WriteLine("second candidate citi name : {0}, count:{1}", citiesArray[1].Item1, citiesArray[1].Item2);
int c1val = citiesArray[0].Item2;
int c2val = citiesArray[1].Item2;
if (c2val / (float)c1val > 0.4)
{
destination += ("," + citiesArray[1].Item1 + "... ");
}
}
}
bool moved = false;
try {
System.IO.Directory.Move(dir.FullName, dir.Parent.FullName + Path.DirectorySeparatorChar + destination);
moved = true;
} catch (Exception) { }
Console.WriteLine("{0} has {2}/{1} gps data and almost file located [{3}@{4}]. then renaming it to {5} : {6}", dir.Name, files.Length, total, cityName, countryName, destination, moved ? "success" : "failed");
}
else
{
Console.WriteLine("{0}`s {1} file has no gps data", dir.Name, files.Length);
}
}
});
}
