From 351bdda734832d821a9764b0cde8be5d83c4ec50 Mon Sep 17 00:00:00 2001
From: wjc <1243177876@qq.com>
Date: 星期四, 01 十二月 2022 09:56:25 +0800
Subject: [PATCH] 2022年12月01日09:56:23
---
ZigbeeApp/Shared/Phone/UserCenter/CommonBase/Logic/HdlGpsLocationConvertLogic.cs | 693 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 693 insertions(+), 0 deletions(-)
diff --git a/ZigbeeApp/Shared/Phone/UserCenter/CommonBase/Logic/HdlGpsLocationConvertLogic.cs b/ZigbeeApp/Shared/Phone/UserCenter/CommonBase/Logic/HdlGpsLocationConvertLogic.cs
new file mode 100644
index 0000000..930a41d
--- /dev/null
+++ b/ZigbeeApp/Shared/Phone/UserCenter/CommonBase/Logic/HdlGpsLocationConvertLogic.cs
@@ -0,0 +1,693 @@
+锘縰sing System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Shared.Phone.UserCenter
+{
+ /// <summary>
+ /// GPS鐨勫潗鏍囪浆鎹㈤�昏緫
+ /// </summary>
+ public class HdlGpsLocationConvertLogic
+ {
+ #region 鈻� 鍙橀噺澹版槑___________________________
+
+ /// <summary>
+ /// GPS鐨勫潗鏍囪浆鎹㈤�昏緫
+ /// </summary>
+ private static HdlGpsLocationConvertLogic m_Current = null;
+ /// <summary>
+ /// GPS鐨勫潗鏍囪浆鎹㈤�昏緫
+ /// </summary>
+ public static HdlGpsLocationConvertLogic Current
+ {
+ get
+ {
+ if (m_Current == null)
+ {
+ m_Current = new HdlGpsLocationConvertLogic();
+ }
+ return m_Current;
+ }
+ }
+
+ // 淇濈暀鐨勫皬鏁颁綅鏁�
+ private const string decimals = "f6";
+
+ // 妞悆鍙傛暟-鍦嗗懆鐜�
+ private const double pi = 3.14159265358979324;
+
+ private const double x_pi = pi * 3000.0 / 180.0;
+
+ // (鍖椾含54)妞悆闀垮崐杞达紝鍗槦妞悆鍧愭爣鎶曞奖鍒板钩闈㈠湴鍥惧潗鏍囩郴鐨勬姇褰卞洜瀛�
+ private const double a = 6378245.0;
+ /*
+ * Krasovsky 1940 (鍖椾含54)妞悆闀垮崐杞寸涓�鍋忓績鐜囧钩鏂�
+ * 璁＄畻鏂瑰紡锛�
+ * 闀垮崐杞达細
+ * a = 6378245.0
+ * 鎵佺巼锛�
+ * 1/f = 298.3锛堝彉閲忕浉鍏宠绠椾负锛�(a-b)/a锛�
+ * 鐭崐杞达細
+ * b = 6356863.0188 (鍙橀噺鐩稿叧璁＄畻鏂规硶涓猴細b = a * (1 - f))
+ * 绗竴鍋忓績鐜囧钩鏂�:
+ * e2 = (a^2 - b^2) / a^2;
+ */
+ private const double ee = 0.00669342162296594323;
+ // 鍦扮悆鍗婂緞
+ private const double earthR = 6371000.0;
+
+ #endregion
+
+ /// <summary>
+ /// 璁＄畻鍋忓樊
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="dLng"></param>
+ /// <param name="dLat"></param>
+ private void CalculateDev(double in_lng, double in_lat, out double dLng, out double dLat)
+ {
+ dLat = TransformLat(in_lng - 105.0, in_lat - 35.0);
+ dLng = TransformLng(in_lng - 105.0, in_lat - 35.0);
+
+ double radLat = in_lat / 180.0 * pi;
+ double magic = Math.Sin(radLat);
+ magic = 1 - ee * magic * magic;
+ double sqrtMagic = Math.Sqrt(magic);
+ dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
+ dLng = (dLng * 180.0) / (a / sqrtMagic * Math.Cos(radLat) * pi);
+ }
+
+ #region 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void GCJ02_to_WGS84(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ if (OutOfChina(in_lat, in_lng))
+ {
+ out_lng = in_lng;
+ out_lat = in_lat;
+ return;
+ }
+
+ CalculateDev(in_lng, in_lat, out out_lng, out out_lat);
+ out_lng = in_lng - out_lng;
+ out_lat = in_lat - out_lat;
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] GCJ02_to_WGS84(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ GCJ02_to_WGS84(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] GCJ02_to_WGS84(double[] lnglat)
+ {
+ return GCJ02_to_WGS84(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] GCJ02_to_WGS84(string lng, string lat)
+ {
+ double _lng, _lat;
+ GCJ02_to_WGS84(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] GCJ02_to_WGS84(string[] _lnglat)
+ {
+ return GCJ02_to_WGS84(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void GCJ02_to_WGS84(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ GCJ02_to_WGS84(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞琖GS84鍧愭爣 绮剧‘(浜屽垎鏋侀檺娉�)
+ /// 榛樿璁剧疆鐨勬槸绮剧‘鍒板皬鏁扮偣鍚�9浣嶏紝杩欎釜鍊艰秺灏忥紝瓒婄簿纭�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ /// <param name="threshold"></param>
+ public void GCJ02_to_WGS84_Exact(double in_lng, double in_lat, out double out_lng, out double out_lat, double threshold = 0.000000001)
+ {
+ double dLng = 0.01, dLat = 0.01;
+ double mLng = in_lng - dLng, mLat = in_lat - dLat;
+ double pLng = in_lng + dLng, pLat = in_lat + dLat;
+ double wgsLng, wgsLat;
+ int i = 0;
+
+ while (true)
+ {
+ wgsLng = (mLng + pLng) / 2;
+ wgsLat = (mLat + pLat) / 2;
+
+ GCJ02_to_WGS84(wgsLat, wgsLng, out out_lng, out out_lat);
+ dLng = out_lng - in_lng;
+ dLat = out_lat - in_lat;
+
+ if ((Math.Abs(dLat) < threshold) && (Math.Abs(dLng) < threshold))
+ break;
+
+ if (dLat > 0)
+ pLat = wgsLat;
+ else
+ mLat = wgsLat;
+
+ if (dLng > 0)
+ pLng = wgsLng;
+ else
+ mLng = wgsLng;
+
+ if (++i > 10000)
+ break;
+ }
+ }
+ #endregion
+
+ #region 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void GCJ02_to_BD09(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ double x = in_lng, y = in_lat;
+ double z = Math.Sqrt(x * x + y * y) + 0.00002 * Math.Sin(y * x_pi);
+ double theta = Math.Atan2(y, x) + 0.000003 * Math.Cos(x * x_pi);
+ out_lng = z * Math.Cos(theta) + 0.0065;
+ out_lat = z * Math.Sin(theta) + 0.006;
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] GCJ02_to_BD09(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ GCJ02_to_BD09(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] GCJ02_to_BD09(double[] lnglat)
+ {
+ return GCJ02_to_BD09(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] GCJ02_to_BD09(string lng, string lat)
+ {
+ double _lng, _lat;
+ GCJ02_to_BD09(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] GCJ02_to_BD09(string[] _lnglat)
+ {
+ return GCJ02_to_BD09(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// 楂樺痉鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void GCJ02_to_BD09(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ GCJ02_to_BD09(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+
+ #endregion
+
+ #region 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void BD09_to_GCJ02(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ double x = in_lng - 0.0065, y = in_lat - 0.006;
+ double z = Math.Sqrt(x * x + y * y) - 0.00002 * Math.Sin(y * x_pi);
+ double theta = Math.Atan2(y, x) - 0.000003 * Math.Cos(x * x_pi);
+ out_lng = z * Math.Cos(theta);
+ out_lat = z * Math.Sin(theta);
+ }
+
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] BD09_to_GCJ02(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ BD09_to_GCJ02(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] BD09_to_GCJ02(double[] lnglat)
+ {
+ return BD09_to_GCJ02(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] BD09_to_GCJ02(string lng, string lat)
+ {
+ double _lng, _lat;
+ BD09_to_GCJ02(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] BD09_to_GCJ02(string[] _lnglat)
+ {
+ return BD09_to_GCJ02(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void BD09_to_GCJ02(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ BD09_to_GCJ02(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+ #endregion
+
+ #region 鐧惧害鍧愭爣杞琖GS84鍧愭爣
+ /// <summary>
+ /// 鐧惧害鍧愭爣杞琖GS84鍧愭爣
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void BD09_to_WGS84(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ BD09_to_GCJ02(in_lng, in_lat, out out_lng, out out_lat);
+ GCJ02_to_WGS84(out_lng, out_lat, out out_lng, out out_lat);
+ }
+ #endregion
+
+ #region WGS-84 to Web mercator
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void WGS84_to_Mercator(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ out_lng = in_lng * 20037508.34 / 180.0;
+ double y = Math.Log(Math.Tan((90.0 + in_lat) * pi / 360.0)) / (pi / 180.0);
+ out_lat = y * 20037508.34 / 180.0;
+ }
+
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] WGS84_to_Mercator(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ WGS84_to_Mercator(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] WGS84_to_Mercator(double[] lnglat)
+ {
+ return WGS84_to_Mercator(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] WGS84_to_Mercator(string lng, string lat)
+ {
+ double _lng, _lat;
+ WGS84_to_Mercator(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] WGS84_to_Mercator(string[] _lnglat)
+ {
+ return WGS84_to_Mercator(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// WGS-84 to Web mercator
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void WGS84_to_Mercator(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ WGS84_to_Mercator(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+ #endregion
+
+ #region Web mercator to WGS-84
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void Mercator_to_WGS84(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ out_lng = in_lng / 20037508.34 * 180.0;
+ double y = in_lat / 20037508.34 * 180.0;
+ out_lat = 180.0 / pi * (2 * Math.Atan(Math.Exp(y * pi / 180.0)) - pi / 2);
+ }
+
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] Mercator_to_WGS84(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ Mercator_to_WGS84(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] Mercator_to_WGS84(double[] lnglat)
+ {
+ return Mercator_to_WGS84(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] Mercator_to_WGS84(string lng, string lat)
+ {
+ double _lng, _lat;
+ Mercator_to_WGS84(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] Mercator_to_WGS84(string[] _lnglat)
+ {
+ return Mercator_to_WGS84(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// Web mercator to WGS-84
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void Mercator_to_WGS84(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ Mercator_to_WGS84(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+ #endregion
+
+ #region WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void WGS84_to_GCJ02(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ if (OutOfChina(in_lat, in_lng))
+ {
+ out_lng = in_lng;
+ out_lat = in_lat;
+ return;
+ }
+
+ CalculateDev(in_lng, in_lat, out out_lng, out out_lat);
+ out_lng = in_lng + out_lng;
+ out_lat = in_lat + out_lat;
+ }
+
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ public double[] WGS84_to_GCJ02(double lng, double lat)
+ {
+ double[] lnglat = new double[2];
+ WGS84_to_GCJ02(lng, lat, out lnglat[0], out lnglat[1]);
+ return lnglat;
+ }
+
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lnglat"></param>
+ /// <returns></returns>
+ public double[] WGS84_to_GCJ02(double[] lnglat)
+ {
+ return WGS84_to_GCJ02(lnglat[0], lnglat[1]);
+ }
+
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="lng"></param>
+ /// <param name="lat"></param>
+ /// <returns></returns>
+ public string[] WGS84_to_GCJ02(string lng, string lat)
+ {
+ double _lng, _lat;
+ WGS84_to_GCJ02(ToDouble(lng), ToDouble(lat), out _lng, out _lat);
+ return new string[] { _lng.ToString(decimals), _lat.ToString(decimals) };
+ }
+
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="_lnglat"></param>
+ /// <returns></returns>
+ public string[] WGS84_to_GCJ02(string[] _lnglat)
+ {
+ return WGS84_to_GCJ02(_lnglat[0], _lnglat[1]);
+ }
+
+ /// <summary>
+ /// WGS84鍧愭爣杞珮寰峰潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void WGS84_to_GCJ02(string in_lng, string in_lat, out string out_lng, out string out_lat)
+ {
+ double _lng, _lat;
+ WGS84_to_GCJ02(ToDouble(in_lng), ToDouble(in_lat), out _lng, out _lat);
+ out_lng = _lng.ToString(decimals);
+ out_lat = _lat.ToString(decimals);
+ }
+ #endregion
+
+ #region WGS84鍧愭爣杞櫨搴﹀潗鏍�
+ /// <summary>
+ /// WGS84鍧愭爣杞櫨搴﹀潗鏍�
+ /// </summary>
+ /// <param name="in_lng"></param>
+ /// <param name="in_lat"></param>
+ /// <param name="out_lng"></param>
+ /// <param name="out_lat"></param>
+ public void WGS84_to_BD09(double in_lng, double in_lat, out double out_lng, out double out_lat)
+ {
+ WGS84_to_GCJ02(in_lng, in_lat, out out_lng, out out_lat);
+ GCJ02_to_BD09(out_lng, out_lat, out out_lng, out out_lat);
+ }
+ #endregion
+
+ /// <summary>
+ /// 涓ょ偣鐩存帴鐨勮窛绂�
+ /// </summary>
+ public double GetDistance(double latA, double lonA, double latB, double lonB)
+ {
+ double x = Math.Cos(latA * pi / 180.0) * Math.Cos(latB * pi / 180.0) * Math.Cos((lonA - lonB) * pi / 180.0);
+ double y = Math.Sin(latA * pi / 180.0) * Math.Sin(latB * pi / 180.0);
+ double s = x + y;
+ if (s > 1) s = 1;
+ if (s < -1) s = -1;
+ double alpha = Math.Acos(s);
+ double distance = alpha * earthR;
+ return distance;
+ }
+
+ /// <summary>
+ /// 鍧愭爣鏄惁鍦ㄤ腑鍥藉鍐�
+ /// </summary>
+ /// <param name="lat"></param>
+ /// <param name="lng"></param>
+ /// <returns></returns>
+ public bool OutOfChina(double lat, double lng)
+ {
+ if (lng < 72.004 || lng > 137.8347)
+ return true;
+ if (lat < 0.8293 || lat > 55.8271)
+ return true;
+ return false;
+ }
+
+ private double TransformLat(double x, double y)
+ {
+ double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.Sqrt(Math.Abs(x));
+ ret += (20.0 * Math.Sin(6.0 * x * pi) + 20.0 * Math.Sin(2.0 * x * pi)) * 2.0 / 3.0;
+ ret += (20.0 * Math.Sin(y * pi) + 40.0 * Math.Sin(y / 3.0 * pi)) * 2.0 / 3.0;
+ ret += (160.0 * Math.Sin(y / 12.0 * pi) + 320 * Math.Sin(y * pi / 30.0)) * 2.0 / 3.0;
+ return ret;
+ }
+
+ private double TransformLng(double x, double y)
+ {
+ double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.Sqrt(Math.Abs(x));
+ ret += (20.0 * Math.Sin(6.0 * x * pi) + 20.0 * Math.Sin(2.0 * x * pi)) * 2.0 / 3.0;
+ ret += (20.0 * Math.Sin(x * pi) + 40.0 * Math.Sin(x / 3.0 * pi)) * 2.0 / 3.0;
+ ret += (150.0 * Math.Sin(x / 12.0 * pi) + 300.0 * Math.Sin(x / 30.0 * pi)) * 2.0 / 3.0;
+ return ret;
+ }
+
+ /// <summary>
+ /// 灏唖tring杞崲涓哄崄杩涘埗鍙岀簿搴︽暟锛屽鏋滄牸寮忛敊璇皢杞崲澶辫触骞惰繑鍥為粯璁ゅ��
+ /// </summary>
+ /// <param name="str"></param>
+ /// <returns></returns>
+ private double ToDouble(string str, double defaultValue = default)
+ {
+ if (double.TryParse(str, out double result))
+ {
+ return result;
+ }
+
+ return defaultValue;
+ }
+ }
+}
--
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