SafeDispatch/Safedispatch_4_0/ReverseGeocodingModule.cs

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using SafeMobileLib;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
namespace Dispatcher
{
public class ReverseGeocodingModule
{
public static String osnServer = "192.168.65.130";
public static List<String> CalculateAddressForPositions<T>(List<T> positions)
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{
List<String> results = new List<string>();
foreach(ILocationAddress pos in positions)
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{
if (pos.Lat == 0.0 && pos.Lng == 0.0)
continue;
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String address = GetAddressFromOSM(pos.Lat, pos.Lng);
if (address == null)
address = GetAddressFromGoogle(pos.Lat, pos.Lng);
if(address == null)
address = Math.Round(pos.Lat, 5).ToString() + " , " + Math.Round(pos.Lng, 5).ToString();
results.Add(address);
pos.Address = address;
}
return results;
}
public static async Task<List<String>> CalculateAddressForPositionsAsync(List<PositionData> positions)
{
List<String> results = new List<string>();
await Task.Factory.StartNew(() =>
{
foreach (ILocationAddress pos in positions)
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{
if (pos.Lat == 0.0 && pos.Lng == 0.0)
continue;
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String address = GetAddressFromOSM(pos.Lat, pos.Lng);
if (address == null)
address = GetAddressFromGoogle(pos.Lat, pos.Lng);
if (address == null)
address = Math.Round(pos.Lat, 5).ToString() + " , " + Math.Round(pos.Lng, 5).ToString();
results.Add(address);
pos.Address = address;
}
});
return results;
}
public static string GetAddressFromGoogle(Double LAT, Double LNG)
{
String addr = null;
try
{
XmlDocument doc = new XmlDocument();
XmlNode element = null;
doc.Load("http://maps.googleapis.com/maps/api/geocode/xml?latlng=" + (LAT.ToString()).Replace(',', '.')
+ "," + (LNG.ToString()).Replace(',', '.') + "&sensor=false");
element = doc.SelectSingleNode("//GeocodeResponse/status");
if (element.InnerText == "OK")
{
element = doc.SelectSingleNode("//GeocodeResponse/result/formatted_address");
addr = element.InnerText.Replace("'", "`");
Utils.WriteLine($"Google Reverse Geocoding for [{LAT},{LNG}] is {addr}", ConsoleColor.Green);
}
else
{
Utils.WriteLine($"Unable to do Reverse Geocoding from Google for [{LAT},{LNG}]. Response is {element.InnerText}", ConsoleColor.Yellow);
}
}
catch (Exception ex)
{
Utils.WriteLine($"Unable to do Reverse Geocoding from Google for [{LAT},{LNG}]", ConsoleColor.Yellow);
//SM.Debug("Error on address calc:"+ex.ToString());
}
//SM.Debug("Prin google:" + addr);
return addr;
}
public static string GetAddressFromOSM(Double LAT, Double LNG)
{
String addr = null;
try
{
XmlDocument doc = new XmlDocument();
XmlNode element = null;
string address = $"http://{osnServer}/nominatim/reverse?format=xml&lat=" + (LAT.ToString()).Replace(',', '.') + "&lon=" + (LNG.ToString()).Replace(',', '.') + "&zoom=18&addressdetails=1";
doc.Load(address);
//doc.Load("http://nominatim.openstreetmap.org/reverse?format=xml&lat=" + (LAT.ToString()).Replace(',', '.') + "&lon=" + (LNG.ToString()).Replace(',', '.') + "&zoom=18&addressdetails=1");
//doc.Load("http://89.33.124.4:1142/nominatim/reverse?format=xml&lat=" + (LAT.ToString()).Replace(',', '.') + "&lon=" + (LNG.ToString()).Replace(',', '.') + "&zoom=18&addressdetails=1");
element = doc.SelectSingleNode("//reversegeocode/result");
addr = element?.InnerText.Replace("'", "`");
if (addr == null)
{
element = doc.SelectSingleNode("//reversegeocode/error");
addr = element?.InnerText.Replace("'", "`");
}
if (addr.Contains("Unable to geocode") || addr.StartsWith("Fail"))
{
addr = null;
Utils.WriteLine($"Unable to do Reverse Geocoding from OSM for [{LAT},{LNG}]. Response is {addr}", ConsoleColor.Yellow);
}
else
Utils.WriteLine($"OSM Reverse Geocoding for [{LAT},{LNG}] is {addr}", ConsoleColor.Green);
}
catch (Exception ex)
{
Utils.WriteLine($"Unable to do Reverse Geocoding from OSM for [{LAT},{LNG}]", ConsoleColor.Yellow);
}
return addr;
}
}
}