[英]Get latitude and longitude from cellid, lac, MCC, MNC in c# for console or wpf applicaiton
我正在創建一個獲取Cellid,MCC,MNC和LAC的系統,並且我想使用opencellid從這些信息中獲取經度和緯度,我沒有在Internet上找到資源,所以我不知道從哪里開始。 如果您可以幫助我找出解決方法,或者提供一種替代解決方案從這些信息中查找經度和緯度,那就太好了。 謝謝
檢查下面的代碼,我希望這會有所幫助:)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
namespace ConsoleApplication1
{
public class GoogleMapsApi
{
static byte[] PostData(int MCC, int MNC, int LAC, int CID)
{
/* The shortCID parameter follows heuristic experiences:
* Sometimes UMTS CIDs are build up from the original GSM CID (lower 4 hex digits)
* and the RNC-ID left shifted into the upper 4 digits.
*/
byte[] pd = new byte[] {
0x00, 0x0e,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00,
0x00, 0x00,
0x00, 0x00,
0x1b,
0x00, 0x00, 0x00, 0x00, // Offset 0x11
0x00, 0x00, 0x00, 0x00, // Offset 0x15
0x00, 0x00, 0x00, 0x00, // Offset 0x19
0x00, 0x00,
0x00, 0x00, 0x00, 0x00, // Offset 0x1f
0x00, 0x00, 0x00, 0x00, // Offset 0x23
0x00, 0x00, 0x00, 0x00, // Offset 0x27
0x00, 0x00, 0x00, 0x00, // Offset 0x2b
0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00
};
Console.WriteLine(pd.Length);
bool isUMTSCell = ((Int64)CID > 65535);
/* if (shortCID)
CID &= 0xFFFF; /* Attempt to resolve the cell using the
GSM CID part */
if ((Int64)CID > 65536) /* GSM: 4 hex digits, UTMS: 6 hex
digits */
pd[0x1c] = 5;
else
pd[0x1c] = 3;
pd[0x11] = (byte)((MNC >> 24) & 0xFF);
pd[0x12] = (byte)((MNC >> 16) & 0xFF);
pd[0x13] = (byte)((MNC >> 8) & 0xFF);
pd[0x14] = (byte)((MNC >> 0) & 0xFF);
pd[0x15] = (byte)((MCC >> 24) & 0xFF);
pd[0x16] = (byte)((MCC >> 16) & 0xFF);
pd[0x17] = (byte)((MCC >> 8) & 0xFF);
pd[0x18] = (byte)((MCC >> 0) & 0xFF);
pd[0x27] = (byte)((MNC >> 24) & 0xFF);
pd[0x28] = (byte)((MNC >> 16) & 0xFF);
pd[0x29] = (byte)((MNC >> 8) & 0xFF);
pd[0x2a] = (byte)((MNC >> 0) & 0xFF);
pd[0x2b] = (byte)((MCC >> 24) & 0xFF);
pd[0x2c] = (byte)((MCC >> 16) & 0xFF);
pd[0x2d] = (byte)((MCC >> 8) & 0xFF);
pd[0x2e] = (byte)((MCC >> 0) & 0xFF);
pd[0x1f] = (byte)((CID >> 24) & 0xFF);
pd[0x20] = (byte)((CID >> 16) & 0xFF);
pd[0x21] = (byte)((CID >> 8) & 0xFF);
pd[0x22] = (byte)((CID >> 0) & 0xFF);
pd[0x23] = (byte)((LAC >> 24) & 0xFF);
pd[0x24] = (byte)((LAC >> 16) & 0xFF);
pd[0x25] = (byte)((LAC >> 8) & 0xFF);
pd[0x26] = (byte)((LAC >> 0) & 0xFF);
return pd;
}
static public string[] GetLatLng(int MCC, int MNC, int LAC, int CID)
{
string[] result = new string[2];
try
{
String url = "http://www.google.com/glm/mmap";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(
new Uri(url));
req.Method = "POST";
byte[] pd = PostData(MCC, MNC, LAC, CID);
req.ContentLength = pd.Length;
req.ContentType = "application/binary";
Stream outputStream = req.GetRequestStream();
outputStream.Write(pd, 0, pd.Length);
outputStream.Close();
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
byte[] ps = new byte[res.ContentLength];
int totalBytesRead = 0;
while (totalBytesRead < ps.Length)
{
totalBytesRead += res.GetResponseStream().Read(
ps, totalBytesRead, ps.Length - totalBytesRead);
}
//for(int i=0;i<ps.Length;i++)
// Console.WriteLine(ps[i]);
string r = System.Text.Encoding.UTF8.GetString(ps);
Console.WriteLine(r);
if (res.StatusCode == HttpStatusCode.OK)
{
short opcode1 = (short)(ps[0] << 8 | ps[1]);
byte opcode2 = ps[2];
int ret_code = (int)((ps[3] << 24) | (ps[4] << 16) |
(ps[5] << 8) | (ps[6]));
if (ret_code == 0)
{
double lat = ((double)((ps[7] << 24) | (ps[8] << 16)
| (ps[9] << 8) | (ps[10]))) / 1000000;
double lon = ((double)((ps[11] << 24) | (ps[12] <<
16) | (ps[13] << 8) | (ps[14]))) /
1000000;
result[0] = lat.ToString();
result[1] = lon.ToString();
return result;
}
else
{
return result;
}
}
else
return result;
}
catch (Exception ex)
{
result[0] = ex.Message;
return result;
}
}
}
}
您可以在此處找到API信息: http : //wiki.opencellid.org/wiki/API
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