From 5f44d21b3921abc88506a7ec46b3fe6f078664aa Mon Sep 17 00:00:00 2001
From: riku <risaku@163.com>
Date: 星期五, 14 三月 2025 15:33:24 +0800
Subject: [PATCH] 新增走航融合功能（初版）
---
src/utils/map/calculate.js | 70 +++++++++++++++++++++++++++++++++++
1 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/src/utils/map/calculate.js b/src/utils/map/calculate.js
index b9ad407..5fe8f49 100644
--- a/src/utils/map/calculate.js
+++ b/src/utils/map/calculate.js
@@ -133,6 +133,57 @@
},
/**
+ * 鑾峰彇涓や釜缁忕含搴︿箣闂寸殑瑙掑害锛�0搴�-360搴︼級
+ */
+ getAngle(lng_a, lat_a, lng_b, lat_b) {
+ var a = ((90 - lat_b) * Math.PI) / 180;
+ var b = ((90 - lat_a) * Math.PI) / 180;
+ var AOC_BOC = ((lng_b - lng_a) * Math.PI) / 180;
+ var cosc =
+ Math.cos(a) * Math.cos(b) + Math.sin(a) * Math.sin(b) * Math.cos(AOC_BOC);
+ var sinc = Math.sqrt(1 - cosc * cosc);
+ var sinA = (Math.sin(a) * Math.sin(AOC_BOC)) / sinc;
+ var A = (Math.asin(sinA) * 180) / Math.PI;
+ var res = 0;
+ if (lng_b > lng_a && lat_b > lat_a) res = A;
+ else if (lng_b > lng_a && lat_b < lat_a) res = 180 - A;
+ else if (lng_b < lng_a && lat_b < lat_a) res = 180 - A;
+ else if (lng_b < lng_a && lat_b > lat_a) res = 360 + A;
+ else if (lng_b > lng_a && lat_b == lat_a) res = 90;
+ else if (lng_b < lng_a && lat_b == lat_a) res = 270;
+ else if (lng_b == lng_a && lat_b > lat_a) res = 0;
+ else if (lng_b == lng_a && lat_b < lat_a) res = 180;
+ return res;
+ },
+
+ /**
+ * 鑾峰彇涓ょ粡绾害闂寸殑璺濈
+ */
+ getDistance(lng1, lat1, lng2, lat2) {
+ lat1 = lat1 || 0;
+ lng1 = lng1 || 0;
+ lat2 = lat2 || 0;
+ lng2 = lng2 || 0;
+
+ var rad1 = (lat1 * Math.PI) / 180.0;
+ var rad2 = (lat2 * Math.PI) / 180.0;
+ var a = rad1 - rad2;
+ var b = (lng1 * Math.PI) / 180.0 - (lng2 * Math.PI) / 180.0;
+ var r = 6378137;
+ var distance =
+ r *
+ 2 *
+ Math.asin(
+ Math.sqrt(
+ Math.pow(Math.sin(a / 2), 2) +
+ Math.cos(rad1) * Math.cos(rad2) * Math.pow(Math.sin(b / 2), 2)
+ )
+ );
+
+ return distance;
+ },
+
+ /**
* 灏嗕簩缁存暟缁勫舰寮忕殑鍧愭爣鐐规暟缁勮浆鎹负楂樺痉鍦板浘涓� LngLat 绫�
* @param {*} lnglats
* @returns
@@ -197,5 +248,24 @@
let mglng = Math.round((lng * 2 - lng - dlng) * 1000000) / 1000000;
return [mglng, mglat];
}
+ },
+
+ //浠嶨PS杞珮寰�
+ wgs84_To_Gcj02(lon, lat) {
+ if (out_of_china(lon, lat)) {
+ return [lon, lat];
+ } else {
+ let dLat = transformlat(lon - 105.0, lat - 35.0);
+ let dLon = transformlng(lon - 105.0, lat - 35.0);
+ let radLat = (lat / 180.0) * PI;
+ let magic = Math.sin(radLat);
+ magic = 1 - ee * magic * magic;
+ let sqrtMagic = Math.sqrt(magic);
+ dLat = (dLat * 180.0) / (((a * (1 - ee)) / (magic * sqrtMagic)) * PI);
+ dLon = (dLon * 180.0) / ((a / sqrtMagic) * Math.cos(radLat) * PI);
+ let mgLat = lat + dLat;
+ let mgLon = lon + dLon;
+ return [mgLon, mgLat];
+ }
}
};
--
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