public async Task <List <OsmGeo> > DownloadArea(double leftLong, double bottomLat, double rightLong, double topLat)
{
AzureService wc = new AzureService();
string res =
await wc.DownloadStringAsync(
$"http://overpass.osm.rambler.ru/cgi/xapi_meta?*[bbox={leftLong}, {bottomLat}, {rightLong}, {topLat}]", 120000);
if (res == null)
{
throw new Exception("Reading unsuccessful");
}
string path = Environment.ExternalStorageDirectory + Java.IO.File.Separator + "temporary_file.txt";
Java.IO.File file = new Java.IO.File(path);
if (file.Exists())
{
file.Delete();
}
using (StreamWriter bytes = new StreamWriter(path, true))
{
bytes.WriteLine(res);
}
return(Deserialize(res));
}
public async Task <Bitmap> DownloadTile(int zoomLevel, double x, double y)
{
AzureService service = new AzureService();
Stream stream = service.CreateBitmap($"http://b.tile.openstreetmap.org/{zoomLevel}/{x}/{y}.png");
byte[] imageBytes = new byte[stream.Length];
stream.Read(imageBytes, 0, (int)stream.Length);
BitmapFactory.Options options = new BitmapFactory.Options();
options.InPurgeable = true;
options.InInputShareable = true;
options.InPreferredConfig = Bitmap.Config.Argb8888;
return(BitmapFactory.DecodeByteArray(imageBytes, 0, imageBytes.Length, options));
}
public async Task UploadPoint(double lat, double longitude)
{
Coordinates coordinates = new Coordinates()
{
CreatorId = Guid.Parse("3133C939-CA10-4F6F-9FEE-BB647AF50BF7"),
CrowdsourcedPlaceType = 1,
Point = new Point()
{
coordinates = new List <double> {
lat, longitude
},
}
};
AzureService service = new AzureService();
await service.PostDataAsync <Coordinates>("http://spaceherders.northeurope.cloudapp.azure.com/api/CrowdsourcedPlace", coordinates);
}
private async Task <string> GetJsonAsync(string url, int timeout = 15000, CancellationTokenSource cancelToken = null)
{
try
{
string json;
AzureService wc = new AzureService();
json = await wc.DownloadStringAsync(url, timeout, cancelToken);
json = json.Replace("Date(-", "Date(");
return(json);
}
catch (Exception exception)
{
return("Error");
}
}